MAN-2V3B-4.

1V-P1-N2

Operating Instructions
For RIX Compressor Family: 2V3B-4.1V
Models: 2V3B-4.1V-N2-P1A, -P1B, -P1C, & -P1E

RIX Industries
3 Stage, Oil-Free
Air-Cooled
Nitrogen Compressor

This manual, including information and products referenced herein, to be provided by Seller
(“Products”) are subject to U.S. export control laws and will not be resold, re-exported, or
retransferred, directly or indirectly, to any person in violation of U.S. Export Administration
Regulations.

4900 Industrial Way, Benicia, CA 94510 | www.rixindustries.com | 707.747.5900

 REVISION HISTORY

Pages
Revision Date By Brief Description
Revised
- 08/17/23 AV Re-drafted, Initial Release
Revised Position Numbers in
Appendix,
Crankcase Assembly Table, Figure 11,
A 05/21/24 AV Parts List
Added Connecting Rod Assembly
Table
Table; ECO-014062

RIX Industries MAN-2V3B-4.1V-P1-N2 Page i

 TABLE OF CONTENTS
PARTS, SERVICE & TECHNICAL SUPPORT .................................................................................................................. iv
SAFETY PRECAUTIONS .......................................................................................................................................................... v
COMPRESSOR WARRANTY ................................................................................................................................................ vi
COMPRESSOR SPECIFICATIONS ..................................................................................................................................... vii
CHAPTER 1: COMPRESSOR OVERVIEW......................................................................................................................... 1
1.1 DESCRIPTION.................................................................................................................................................... 1
1.2 GAS COMPRESSION ........................................................................................................................................ 1
1.3 GAS FLOW........................................................................................................................................................... 1
1.4 COOLING ............................................................................................................................................................. 1
1.5 CRANKCASE LUBRICATION ........................................................................................................................ 1
CHAPTER 2: INSTALLATION .............................................................................................................................................. 2
2.1 MOUNTING......................................................................................................................................................... 2
2.2 GAS PLUMBING ................................................................................................................................................ 2
2.3 CRANKCASE LUBRICATION ........................................................................................................................ 2
2.4 ELECTRICAL CONNECTIONS ...................................................................................................................... 3
2.5 STORAGE ............................................................................................................................................................. 3
CHAPTER 3: START-UP AND OPERATING PARAMETERS ..................................................................................... 4
3.1 SYSTEM CHECKOUT ....................................................................................................................................... 4
3.2 START-UP ........................................................................................................................................................... 4
3.3 NORMAL OPERATING PRESSURE RANGES: ........................................................................................ 5
3.4 RELIEF VALVE SETTINGS ............................................................................................................................ 5
CHAPTER 4: CONTROL SYSTEM AND UNLOADED STARTUP............................................................................... 6
4.1 SAFETY SWITCH SETTINGS ........................................................................................................................ 6
4.2 CONTROL SYSTEM .......................................................................................................................................... 6
CHAPTER 5: ROUTINE INSPECTION AND SCHEDULED MAINTENANCE ........................................................ 8
5.1 ROUTINE INSPECTION .................................................................................................................................. 8
5.2 SCHEDULED MAINTENANCE ..................................................................................................................... 9
5.3 FILTER ................................................................................................................................................................. 9
5.4 CRANKCASE LUBRICATING OIL ................................................................................................................ 9
5.5 MOTOR LUBRICATION .................................................................................................................................. 9
5.6 DRIVE BELTS ..................................................................................................................................................... 9
5.7 PRESSURE RELIEF VALVES....................................................................................................................... 10
5.8 GAS PIPING LEAK CHECK .......................................................................................................................... 10
5.9 VALVES .............................................................................................................................................................. 10
5.10 PISTON RINGS................................................................................................................................................. 11
5.11 CYLINDER LINERS ........................................................................................................................................ 11
5.12 PISTON ROD OIL SEALS .............................................................................................................................. 12
CHAPTER 6: TROUBLESHOOTING ................................................................................................................................. 13
CHAPTER 7: CORRECTIVE MAINTENANCE ............................................................................................................... 14
7.1 ALIGNMENT OF DRIVE PULLEYS ........................................................................................................... 14
7.2 TIGHTENING V-BELTS ................................................................................................................................ 14
7.3 CYLINDER HEADS ......................................................................................................................................... 15
7.4 COMPRESSOR VALVES ................................................................................................................................ 15
7.4.1 1ST STAGE VALVE ASSEMBLY ............................................................................................................ 16

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 7.4.2 2ND STAGE VALVE ASSEMBLY ........................................................................................................... 16
7.4.3 3RD STAGE VALVE ASSEMBLY ........................................................................................................... 17
7.5 CYLINDERS....................................................................................................................................................... 18
7.6 PISTON RINGS................................................................................................................................................. 19
7.6.1 REPLACE PISTON RING - FIXED PISTON - 1ST STAGE ............................................................. 19
7.6.2 REPLACE PISTON RING - FIXED PISTON – 2ND STAGE ........................................................... 19
7.6.3 REPLACE PISTON RING - FLOATING PISTON - 3RD STAGE .................................................. 20
7.7 PISTON RODS & OIL WIPER SEALS ....................................................................................................... 21
7.7.1 INSTALL PISTON ROD AND OIL SEALS ........................................................................................... 21
7.8 PISTON ROD ADJUSTMENT ...................................................................................................................... 21
7.9 CRANKSHAFT SHAFT SEAL....................................................................................................................... 22
7.10 GUIDE CYLINDERS ........................................................................................................................................ 22
7.11 CONNECTING RODS ..................................................................................................................................... 23
7.12 MAIN BEARINGS ............................................................................................................................................ 24
CHAPTER 8: CLEARANCES & TOLERANCES .............................................................................................................. 26
CHAPTER 9: SPECIFIED TORQUES................................................................................................................................. 27
APPENDIX ................................................................................................................................................................................. 28

RIX Industries MAN-2V3B-4.1V-P1-N2 Page iii

 PARTS, SERVICE & TECHNICAL SUPPORT

Manufacturer: RIX Industries

4900 Industrial Way
Benicia, California 94510 USA
Phone: 707-747-5900
Fax: 707-747-9200
Parts Fax: 707-748-0398
www.rixindustries.com/request-spare-parts/

Parts Dept. Hours: 6:30-15:30 PST

Compressor model and serial number must be provided with all inquiries.

NOTE

Parts recommended for routine service are indicated in the parts lists. The customer is advised to
maintain these parts at their facility or procure them in advance as lead times and availability can
vary. RIX also offers service and overhaul kits to support other scheduled maintenance
requirements.

COMPRESSOR IDENTIFICATION
Please record the information indicated below to provide in communication with RIX about parts,
service, warranty claims, or any other information related to this compressor.

Compressor Model Type Location of Service

2V3B-4.1V
Serial Number Application

Lot Number Date of Shipment Date in Operation

RIX is an AS9100C:ISO9001-2008 registered company. All compressors are designed and

manufactured in accordance with the requirements of the AS9100C:ISO9001-2008 quality system
ensuring the highest quality products.

RIX Industries MAN-2V3B-4.1V-P1-N2 Page iv

 SAFETY PRECAUTIONS
Prior to installing, operating, troubleshooting, or repairing any part of this compressor, all
precautions stated in this manual should be reviewed and understood. Failure to observe
safety precautions may result in damage to equipment or serious injury and/or death to
personnel.

Danger

This symbol means if the danger is not avoided, it will cause death, serious
bodily injury, or severe damage to the machine.

1. Before working on the compressor, all internal pressure must be relieved and compressor
must be isolated or disconnected from all external pressure sources.

2. All electrical components associated with this equipment shall be installed and grounded in
accordance with applicable codes and regulations.

3. Before working on electrical equipment, take steps to ensure system is de-energized and
will remain so while work is in progress. All circuits not known to be DEAD must be
considered LIVE and dangerous at all times.

Warning

This symbol means if the warning is not heeded, it can cause death, bodily
injury, or damage to the machine.

1. Do not operate unit if safety guards are removed, damaged, or modified.

2. Do not reset relief valves or pressure switch for any pressure higher than as specified in the
service manual.

3. Do not make any unauthorized alteration or modifications to the equipment.

Caution

This symbol means if precaution is not taken, it may cause bodily injury or
damage to the machine.

4. Do not touch cylinder heads or the discharge gas lines during operation. Allow compressor
to cool prior to preforming service.

RIX Industries MAN-2V3B-4.1V-P1-N2 Page v

 COMPRESSOR WARRANTY
RIX Industries warrants this compressor as follows:

A. (Field Service/Overhaul) Exclusive of normal wearing parts - Seller warrants that its work
when performed and services when rendered will meet all specific requirements, if any, of this
agreement, and will be done in a good and workmanlike manner. Seller warrants its work for a
period of 90 days from completion of the work and all claims for defective work must be made in
writing immediately upon discovery and in any event within 90 days from date of completion
thereof by Seller. Upon Buyer’s submission of a claim as provided above and its substantiation,
Seller shall at its option either (i) repair Buyer’s equipment at the original F.O.B. point of delivery,
(ii) refund an equitable portion of the contract price, (iii) furnish F.O.B. Seller’s facility or other
point of shipment any necessary repaired or replacement parts or, (iv) in the case of service, re-
perform the service.
B. (Parts/Material and New Equipment) Exclusive of normal wearing parts - Seller warrants
that any parts manufactured by Seller and delivered hereunder will be free from defects in material
and workmanship. Seller warrants its parts for a period of twelve (12) months from operation and
all claims for defective parts under this warranty must be made in writing immediately upon
discovery, and in any event, within eighteen (18) months from shipment of the applicable item,
whichever shall first occur. Upon Buyer’s submission of a claim as provided above and its
substantiation, Seller shall at its option either repair or replace its part at the original F.O.B. point of
delivery. Defective items must be held for Seller’s inspection and returned to the original F.O.B.
point upon request.
C. With respect to parts not manufactured or services not performed by Seller, Seller assigns to
Buyer whatever warranty Seller receives from the Supplier of such parts or services. However,
Seller agrees to be Buyer’s primary contact on all warranty claims.
D. The foregoing warranties are exclusive and in lieu of all other warranties, whether written, oral,
implied or statutory. NO IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR PURPOSE
SHALL APPLY.
E. Seller makes no performance warranty and the effects of corrosion, erosion and normal wear
and tear are specifically excluded from Seller’s warranty.
F. Seller will not be liable to Buyer for any loss or injury to persons or property (including the
machinery which is the object of the work) caused in whole or part by (1) the acts of buyer or its
agents, (2) failure to observe Seller’s instructions, or (3) failure or malfunctioning of anything not
furnished by Seller.
G. The preceding paragraphs set for the exclusive remedies for warranty claims, and upon the
expiration of the warranty period, all such liability shall terminate.
H. Normal Wearing parts are defined, but not limited to the following: Seals, Gaskets, O-rings, piston
rings and riders, bulbs, fuses, and anti-corrosion devices such as zincs. RIX Industries reserves the
right to evaluate these items for material workmanship and defects on a case by case basis.
I. FOB Destination Service Items are limited to the Continental United States (CONUS). Service
outside the CONUS is at the discretion of the seller, and or at buyer’s expense.

RIX Industries MAN-2V3B-4.1V-P1-N2 Page vi

 COMPRESSOR SPECIFICATIONS
This document is valid for the following RIX compressor models:
 2V3B-4.1V-P1A-N2
 2V3B-4.1V-P1B-N2
 2V3B-4.1V-P1C-N2
 2V3B-4.1V-P1E-N2

Warning

This equipment is designed only for the specific application noted on this page. It is
the user’s responsibility to ensure the compressor meets the below stated operating
conditions. Deviation from these standards may result in damage to the compressor
and/or operator injury or death.

Gas Input
Design Gas: Clean Dry Nitrogen
Pressure: 30 to 40 PSIG
Dew Point: – 40 °F Maximum

Gas Output
Flow: 10.6 SCFM* at 40 PSIG, 100 °F inlet
Pressure: 2500 PSIG Maximum
*Design basis of SCFM is 70°F and 14.7 psia

General Design
Design Speed: 540 RPM
Compressor Design: Three stage, oil-free compression, air-cooled
Cylinder Sizes: 2 1/4” & 1 3/8” & 5/8”
Stroke Length: 3”

Electrical Requirements
Drive Motor: 10 HP
Control Circuit Voltage: 230 VAC
P1A Supply Power: 208-230VAC/3PH/60HZ
P1B Supply Power: 460VAC/3PH/60HZ
P1C Supply Power: 380-415VAC/3PH/50HZ
P1E Supply Power: 380-415VAC/3PH/60HZ

Operating Environment
Installation: Indoors or Weather Protected
Ambient Temperature: 35 to 104 °F
Altitude: Sea Level to 4500’

RIX Industries MAN-2V3B-4.1V-P1-N2 Page vii

CHAPTER 1: COMPRESSOR OVERVIEW
This manual is intended to provide all necessary information and documentation pertinent to the
installation, operation, and maintenance of the RIX compressor family 2V3B-4.1V—models 2V3B-
4.1V-P1A-N2, 2V3B-4.1V-P1B-N2, 2V3B-4.1V-P1C-N2, & 2V3B-4.1V-P1E-N2. Ensure all operators of
this compressor package read and understand the entire manual prior to installation, operation,
and/or servicing. All servicing shall be performed only by trained and qualified personnel.

1.1 DESCRIPTION
This is a 3 stage, 3 cylinder, air-cooled, oil-free compressor. The unit has been designed for the
compression of dry Nitrogen to the pressures indicated on the registration page of this manual.

1.2 GAS COMPRESSION

This compressor is designed to safely compress without cylinder oil lubrication. Teflon based
piston rings are used in all stages. The compression cylinders are isolated from the crankcase
lubricating oil by crosshead distance pieces and metal slingers on the piston rods.

1.3 GAS FLOW

Gas entering at the suction of the first stage is successively compressed through three stages to
provide the final discharge pressure. After each stage of compression the gas is cooled in a heat
exchanger by ambient air. A flow schematic shows the gas flow in more detail.

1.4 COOLING
Due to the heat created by compression, it is necessary to cool the compressed gas after each stage
of compression. A cooling fan pulls air through the inter/aftercooler assembly and then routes the
air towards the compression cylinders.

1.5 CRANKCASE LUBRICATION

The entire crankcase assembly including guide cylinders is splash lubricated with automotive type
oil.

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CHAPTER 2: INSTALLATION
2.1 MOUNTING
The compressor must be firmly bolted down to a rigid foundation through all mounting holes to
minimize vibration. Any allowed movement will generally increase vibration which can lead to
component damage.

2.2 GAS PLUMBING

Be sure all process lines are free from contamination. Plumbing to the compressor must be sized so
that pressure at the compressor suction is within the range given in Compressor Specifications.
Discharge plumbing must be large enough to pass design flow at lowest expected back pressure
without choking the flow. User’s suction and discharge plumbing should be designed to
accommodate compressor vibration.

CAUTION

If flexible lines are used, user is responsible to secure those lines

to prevent whipping in case of breakage.

Safety relief valves are installed on the compressor at each stage of compression: suction,
interstage, and discharge. Do not start the compressor without these items properly installed. All
plumbing and components must be rated for pressures greater than the connected relief valve
setting.

Provisions must be in place to relieve all internal pressure and isolate the compressor from all
external pressure sources to ensure that the unit can be safely disassembled for maintenance. It
may be helpful to install a hand valve in the gas line downstream of the compressor to create back
pressure for testing and calibration.
2.3 CRANKCASE LUBRICATION
Check the crankcase oil level via sight glass (oil level should be ¾ way up the sight glass) and
inspect for contamination from water or other foreign material. To add oil unscrew the plastic vent
on the crankcase cover plate. Change oil every 3000 hours, or annually, whichever comes first.
The unit has been shipped dry, so the User is responsible for adding oil prior to the first run.

Automotive type oil is recommended, either synthetic or carbon based. Synthetic is recommended
in cold temperatures. Multi-viscosity oil is acceptable. Synthetic compression oils are not suitable.

CRANKCASE OIL CAPACITY: 1 3/4 Quarts (1.66 liters)

VISCOSITY: Above 60˚F. - SAE 30W

Between 32˚ and 60˚F - SAE 20W
Between 20˚ and 32˚F - SAE 10W - synthetic oil preferred

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 2

 Below 20˚F - SAE 5W - synthetic oil required

2.4 ELECTRICAL CONNECTIONS

The unit must be wired to a source of power in accordance with applicable codes. The compressor
should be connected to power such that the cooling fan pulls air over the heat exchanger.

2.5 STORAGE
If the compressor is taken out of service, provision should be made to protect against corrosion. At
a minimum, gas suction and discharge lines should be capped. The compressor should be rotated at
least once every 2 months. In corrosive environments, the distance pieces should be sealed and the
unit nitrogen purged.

After an extended storage (or if stored without climate control) the crankcase cover plate should be
removed and the roller bearings inspected for possible corrosion. Apply oil to all bearings before
replacing cover. Also, lift up oil packing boxes (inside distance pieces) and lubricate guide
cylinders.

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 3

CHAPTER 3: START-UP AND OPERATING PARAMETERS
3.1 SYSTEM CHECKOUT
Check that crankcase oil level is ¾ up the sight glass and inspect for water or other foreign material.

Ensure that a free flow of gas is available to the compressor inlet and that the high pressure
discharge line is unobstructed. It is essential that an approved safety relief valve and pressure
gauge are installed between the compressor and the first item in the gas piping that can potentially
block the flow of gas. Do not start the compressor until these items are properly installed.

3.2 START-UP
Supply the required suction pressure to the compressor inlet. Check for leaks in the system and
correct as necessary.

Start the compressor and observe the pressure gauges. The final pressure will increase quickly to
the Back Pressure Regulator (BPR) setting. The inter-stage pressures should approach their normal
level as the final stage comes up to its final setting. See paragraph 3.4 for normal operating
pressures. Note: due to the floating high pressure piston the unit may experience light knocking for
1-2 seconds on start-up.

If inter-stage pressures do not reach normal levels check for leaks in the gas piping. A soapy water
solution is one way to do this (see paragraph 5.8). If inter-stage pressures exceed normal levels
(which may pop relief valves) this is due to valves on the next stage leaking back. Leaking valves
may be the result of inactivity in which case operating the unit at reduced back pressure (or at back
pressure valve setting) for 30 minutes may clear the problem. Also see troubleshooting guide.

If the compressor does not shut off when the discharge switch set pressure is reached, manually
shut down and check the switch and related wiring (see switch instructions near end of manual). If
necessary, adjust the switch. When working correctly, the compressor should automatically restart
when discharge pressure drops to the "on" pressure setting (automatic mode only).

Test the suction pressure switch by manually lowering the pressure to the compressor inlet. If the
compressor does not shut off when the switch set pressure is reached, manually shut down and
check the switch and related wiring. Operating the compressor with inadequate suction pressure
may overheat the final stage and/or cause banging of floating piston creating the potential for
severe damage. When working correctly the compressor should automatically restart when the
suction pressure rises back to the "on" pressure setting (automatic mode only).

Test temperature shutdown switch by manually lowering setting while operating at full pressure.

SEE CHAPTER 4 FOR CONTROL SYSTEM INFORMATION

Warning

A painful burn can be caused by touching any of the cylinder heads

or discharge gas lines from the heads to the inter/aftercooler.

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 4

 Danger

Do not stick hand inside distance piece when unit is running. Metal
slingers on piston rods will crush fingers.

3.3 NORMAL OPERATING PRESSURE RANGES:

Suction: 30-40 psig
1st Stage: 190-250 psig
2nd Stage: 700-820 psig
3rd Stage up to 2500 psig

Back Pressure Regulator setting: 1500 psig (approximate)

It is recommended that a log be kept, noting operating pressures and maintenance done versus
hours of compressor operation. If pressures do not fall within the above ranges, or vary from your
historical pressures, check Chapter 6: Troubleshooting, for corrective action.

3.4 RELIEF VALVE SETTINGS

Stage Symbol Set Point
Suction RVI 50 Psig
1st Stage RV1 300 Psig
2nd Stage RV2 1000 Psig
3rd Stage RV3 2800 Psig

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 5

CHAPTER 4: CONTROL SYSTEM AND UNLOADED STARTUP
4.1 SAFETY SWITCH SETTINGS
Switches Symbol Function Set Point
Discharge Gas Pressure SPD Stop 2500 psig max
Start approx 500 psi less
Suction Gas Pressure SPI Stop 30 psig falling
Start 40 psig rising
High Gas Temperature Shutdown 400 OF Max*

*Temp switch to be set 30˚F above maximum observed operating temperature or 400 OF,
whichever is lower.

4.2 CONTROL SYSTEM

The control system is designed for two modes of operation:

1) Manual start / automatic stop

2) Auto start / stop based on both suction and discharge pressure

An HOA (HAND/OFF/AUTO) switch is provided on the control panel which allows choice of modes.

The suction and discharge pressure switches have a "cut in" setting for starting and a "cut out" setting
for stopping. The deadband the inlet switch is adjustable. See instructions in appendix for
adjustments.

In the event of an emergency an E-Stop button is provided. The E-Stop will disconnect all power to
the control box. The E-Stop has a mechanical Push-Pull latch. Pushing the button will stop all
operation. To continue operation pull the E-Stop button to reengage circuit control.

Warning

If the unit is in AUTO mode when the E-Stop button is pulled the unit will automatically restart. Place
the HOA Switch in OFF mode before pulling the E-Stop button.

Details of the two operating modes are as follows:

Manual Mode of Operation

With the selector switch in the HAND position the compressor is in manual mode and will start when
the START pushbutton is pressed. The unit will continue to run until one of the safety switches stops
the unit. At that point the compressor will not restart until the START pushbutton is pressed again.
If any switch remains above the "cut in" setting the compressor will not start. To manually stop the
unit, switch the HOA switch to the OFF position.

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 6

Automatic Mode of Operation

With the selector switch in the AUTO position the compressor will automatically start and stop
based on the signal from either the suction or discharge pressure switch. When shutdown by either
switch, the compressor will remain on standby until the pressure reverts back to the "cut in" point
of the switch, at which point the compressor will restart. If shutdown by high gas temperature, the
unit will remain off until the it cools down below the temperature switch set point and the fault is
cleared by pressing and releasing the emergency stop button. To manually stop the unit, switch the
HOA switch to the OFF position.

Electrical Schematic Description

The following explains the logic sequence as reflected on the schematic:

a. With power applied to the unit and the selector switch (SA) in HAND, push
the START pushbutton.

b. The two pressure switches, low inlet (SPI) and discharge (SPD) are connected
in series to the motor controller. If the inlet pressure is high enough to close
the inlet switch, and the discharge switch remains closed (pressure below the
switch "cut in" setting) the compressor will start.

c. Current passes through the two closed pressure switches, the closed relay
(KA-2) and energizes the starter coil (KM). The starter coil starts the main
drive motor (M). The fan motor (FM) and hour meter (HM) also operate at
this point. The green light (HL1) will energize indicating the compressor is
running. Tripping of either the inlet or discharge switch will break current to
the coil which will stop the drive motor.

d. If the 3rd stage temperature reaches the switch set point the temperature
switch (TIS) opens and de-energizes relay KA. When relay KA is de-energized,
contact KA-2 opens and removes power to the motor starter coil (C). This
stops the compressor motor, fan motor, and the hour meter. The green light
will de-energize. Contact K1-1 closes and the red light (HL2) energizes
signaling a high temperature condition. After the temperature switch has
reset, the emergency stop button must be pushed to clear the fault, followed
by the start button to restart the compressor in manual mode. In auto mode
the compressor will restart after the emergency stop is pressed and released.

e. The compressor may also be run in the automatic mode by selecting AUTO on
the HOA (SA) switch. All features are the same as described above except that
after the inlet or discharge switch shut down the unit, the compressor will
automatically restart when the switches are moved to the "cut in" setting. The
compressor will continue cycling until the selector switch is moved to either
HAND or OFF.

f. The unit may be stopped at any time by switching the HOA to OFF.

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 7

CHAPTER 5: ROUTINE INSPECTION AND SCHEDULED MAINTENANCE
The purpose of this chapter is to provide the operator with the routine inspection and scheduled
maintenance information required to insure a long service life of the subject compressor. Detailed
procedures for maintenance are contained in chapter 7.

5.1 ROUTINE INSPECTION

a. Check that crankcase oil level is 3/4 of the way up on sight glass. Check for oil leaks.
b. Check gauge pressures against normal operating cylinder pressures.
c. Check cooling air flow. Verify heat exchanger fins are clean and free from blockages.
d. Check for unusual noises or vibrations.

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 8

5.2 SCHEDULED MAINTENANCE
Para. Operation Time intervals in hours
5.3 Filter Cleaning............................................................................. 3000 or as required
5.4 Crankcase Lubricating Oil ................................................... 3000 or once per year
5.5 Drive-belt Adjustment ........................................................................Annually
5.6 Electric Motor Lubrication ............................................................ as required
5.7 Pressure Relief Valves ........................................................................Annually
5.8 Gas Piping Leak Check ..................................................... 1000 or after maintenance
5.9 Compressor Valves ................................................................... 4500 or as required
5.10 Piston Rings – 3rd stage ......................................................... 1500 or as required
Piston Rings – 2nd stage ......................................................... 3000 or as required
Piston Rings – 1st stage .......................................................... 4500 or as required
5.11 Cylinder Liners .................................................................................... as required
5.12 Piston rod oil seals ............................................................................. as required

Warning

Before performing any of the scheduled maintenance tasks in this

chapter, the compressor should be de-energized and tagged “Out of
Service”. This is to prevent an inadvertent start which could cause
injury to personnel or damage to the equipment. Allow piping to cool
before repair.

5.3 FILTER
Every 3000 hours (or as required) the discharge filter should be cleaned or replaced.

5.4 CRANKCASE LUBRICATING OIL

Every 3000 hours of running time (or annually) the crankcase oil should be renewed. Failing to
change the oil as scheduled may result in premature or accelerated wear to the running gear
(crankshaft, main / connecting rod bearings and the crosshead).

5.5 MOTOR LUBRICATION

If motor does not have grease fittings, the bearings are sealed for life. Otherwise, follow the
manufacturer’s recommendation.

5.6 DRIVE BELTS

Properly tensioned belts insure a longer life. Correct belt tension for the 2V unit allows one quarter
inch deflection with 8-10 lb. force applied per belt at mid-span. New belts may require tightening
after 24-48 hours of operation. Two belts are required. Units with the flywheel grooves painted
normally require banded belts as single belts may rotate in the grooves. See Chapter 7.2 for more
information.

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 9

5.7 PRESSURE RELIEF VALVES
The pressure relief valves should be removed from the compressor, inspected for cleanliness, and
tested for correct set-point every 8000 hours or once per year. If a valve fails to lift at its rated
pressure, it must be readjusted, and if necessary, rebuilt or replaced.

5.8 GAS PIPING LEAK CHECK

Every 1000 hours all piping joints should be examined for leaks. Leak testing requires that the
compressor be pressurized, and therefore running or recently run. Also check joints after reassembly
from maintenance.

A soapy solution in a squirt bottle works best for locating leaks in a gas system. Any gaskets and O-
rings needed for the repair should be on hand prior to attempting to fix a leak. This test is simplified
if the compressor is allowed to cool, then restarted immediately prior to running the leak test, since
the hot discharge pipes can boil away the soap solution making detection of leaks difficult or
impossible.

Caution

Do not use any flammable solution for leak testing.

Warning

Hot discharge lines can produce painful burns - be careful to avoid

making contact with hot pipes. Wear safety glasses at all times.

PROCEDURE:

a. Restart compressor after it has been allowed to cool down.

b. Systematically move from joint to joint and fitting to fitting in the gas system piping,
spraying the leak test solution.
c. Observe for the formation of bubbles. Mark location of any detected leaks. Large leaks
may blow the soap solution away as quickly as it is applied. These may be detected by
feel, again being careful of hot discharge lines.
d. O-ring joints cannot be corrected by additional tightening. In most cases, a new o-ring
must be installed. Always inspect the surfaces that seal against the o-ring for defects
and correct as required. Insure the proper durometer (hardness) o-ring is used.

Note: See Drawing A5089 for O-ring installation and material information

5.9 VALVES
Valves should be inspected every 4000 hours of operation, or earlier if pressures vary from normal,
flow capacity drops, noise is detected or an abnormally high temperature is observed. The customer

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 10

should establish reference data for use in scheduled maintenance by taking gauge readings when the
compressor is running under normal operating conditions.

The perimeter of valve seats and o-rings may be lightly lubed with appropriate grease to ease
assembly. Alignment pins may also be lubed to help hold in place. (see additional information in
chapter 7)

5.10 PISTON RINGS

As the piston rings wear, their ability to seal is diminished. Excessive wear will result in lower
compressor capacity, more frequent compressor operation and unnecessary wear on other
components. There is also risk of damaging cylinder liner walls if the rings wear out completely.

Excess piston to cylinder clearance, caused from either piston or cylinder liner wear, will significantly
decrease ring life. Cylinder bores should be observed for wear at ring change-outs and measured for
wear if ring life has significantly decreased. For maximum ring life, pistons should not be removed
from cylinders prior to ring replacement.

For the 3rd stage floating piston it is recommended that the piston be replaced with the rings as an
assembly at the first change-out, and thereafter as necessary. If undamaged, the original piston can
be re-ringed by the user and kept for the next change-out.

A common indicator of worn rings is low compressor flow. On this 2V3 unit, the 3rd stage is located
over the 2nd stage, and all 3rd stage piston ring blowby passes into the 2nd stage compression area.
As the 3rd stage rings wear, the 2nd stage pressure will tend to increase. Too much ring blowby will
cause the 2nd stage relief valve to pop, at which point the 3rd stage rings must be replaced. If the
2nd stage rings are also worn excessively, their leak rate may prevent the 2nd stage pressure from
increasing. Gas leaking past either the 1st or 2nd stage rings passes thru the distance piece to
atmosphere.

As the 1st or 2nd stages rings wear the cylinder pressures will tend to be lowered. With extreme
wear the compressor will not be able to compress to the design final stage discharge pressure.

Ring life will vary with discharge pressure, atmospheric temperature and frequency of start/stop
cycles. A low ambient temperature will increase ring life. Frequent start/stop cycles will reduce ring
life. If possible, allow downstream pressure to drop as low as possible before restarting compressor.

5.11 CYLINDER LINERS

When ring life deteriorates from normal, liners should be checked for surface finish, scoring or
excessive wear. Maximum wear will normally occur 1/3 to 1/2 way down the bore. A bore gauge is
the best way to measure wear. Check diameter at several depths for wash-boarding, and hone or
replace as required. See chapter 7 for maximum diameters. Cleaning may not be required on normal
ring change-outs unless contaminates are present.

The desired cylinder surface is a 16-32 crosshatch. Surface roughness is needed to allow engraining
of Teflon in the bore. A smoother bore will reduce ring life. Re-hone cylinder as required, removing
a minimum of material.

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5.12 PISTON ROD OIL SEALS
The oil seals prevent crankcase oil from leaking into the distance piece area. If leakage occurs,
remove and clean piston rod and replace seals. If scratches are found on rod surface, refinish per
instructions in chapter 7.

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CHAPTER 6: TROUBLESHOOTING
Abnormal compressor conditions can be evaluated more quickly and accurately by looking at inter-
stage pressures. Variation of the inter-stage pressure indicates a problem condition, such as worn
piston rings, leaking valves or piping leaks. Observe cylinder pressures, which should be as indicated
on the Registration Page of this manual or in chapter 3.

Low inter-stage pressures will be caused by one or more of the following:

a. Worn 1st or 2nd stage rings
b. Leaking 1st stage valves
c. Leaks in piping or o-rings
d. Excessive 1st stage piston clearance
e. Restricted inlet filter or suction piping
f. Low suction pressure to compressor

NOTE: Operating compressor with a low inter-stage pressure may cause overheating of the
final stage resulting in premature ring wear.

High inter-stage pressures will be caused by one or more of the following:

a. Leaking valves on the next stage
b. Worn piston rings on 3rd stage

NOTE: Leaking valves (in any stage) can cause a slight warming of the suction pipe just
prior to the cylinder head.

Compressor will not produce final discharge pressure:

a. Worn piston rings

b. Leak to atmosphere via cylinder head o-ring or piping
c. Leak in downstream (customer) piping

Shutdown due to high discharge temperature:

a. Low inter-stage pressure (see above causes)

b. Inoperative cooling fan (or reverse rotation)
c. Inadequate ventilation around compressor or blocked cooling fins

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CHAPTER 7: CORRECTIVE MAINTENANCE
This chapter presents instructions for adjustments and repairs to the compressor pump. Scheduled
maintenance and general repair information is covered in Chapter 5. Where special tools are
required, they are called out in the applicable paragraph. This chapter is divided into two sections:
Section I, Adjustments and Alignments, and Section II, Repair.

Warning

The compressor may start at any time when in automatic mode. Before attempting
any repairs or adjustments de-energize the machine by disconnecting power to the
control box, vent pressure downstream of the unit and allow the discharge piping to
cool.

SECTION I – EXTERNAL ADJUSTMENTS AND ALIGNMENTS

7.1 ALIGNMENT OF DRIVE PULLEYS

Following any repair which requires removal of the motor sheave or compressor flywheel, it may be
necessary to realign the pulleys.

The pulleys are keyed to the shaft and locked in place with a tapered bushing. The pulleys have a hub
that can be separated by removing the three bolts and using them as jacking devices by inserting into
the threaded holes in the hub and tightening sequentially until the pulley breaks free. When loose,
the pulley and hub can be slid back and forth on the shaft to achieve alignment. To align, use a straight
edge across the outside faces of the pulleys. The gap between the straight edge and flywheel or pulley
should not exceed 1/16" (4 CM).

Torque the bolts per specifications. Check alignment and repeat if necessary. Replace belt guard.

7.2 TIGHTENING V-BELTS

To replace belts, loosen the motor and roll the belts off the flywheel and drive sheave, one groove at
a time. Install new belts via reverse method.

To obtain the proper tension on the V-belts, use the following procedure:
a. Loosen the motor tie-down bolts at least three turns.
b. Move the motor outward until the desired belt tension is achieved. Correct belt
tension allows one quarter inch deflection with 8-10 lb. force applied per belt at
mid-span.

c. Tighten motor tie-down bolts and replace belt guard.

d. Inspect and retighten new belts as required after 24-48 hours of operation.

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SECTION II - REPAIR

7.3 CYLINDER HEADS

The fasteners which hold the heads in place must be removed and installed using an
alternating pattern. Care should be taken not to over tighten the nuts as this could
damage the valves and heads.

REMOVE HEAD
a. Relieve pressure and allow heads to cool. Disconnect piping from the head.
b. Note the orientation of the head on the cylinder to ensure proper reassembly.
c. Remove the retaining nuts using an alternating pattern; carefully lift the head from
the cylinder. Discard the used O-rings.

INSTALL HEAD
a. Install new O-ring in head or at top of cylinder as applicable.
b. Carefully position and orient the head on the cylinder and install the nuts or bolts.
Tighten in 5 ft-lb. increments, using a cross sequence, until the proper torque is
reached. Be careful to verify that the head is on square and not cocked.

7.4 COMPRESSOR VALVES

All 3 cylinder heads have a valve assembly whose main components are suction / discharge reeds
and a valve seat. A leaking valve, either suction or discharge, will usually be indicated by a higher
than normal pressure on the preceding stage, or in the case of the first stage, a loss in flow along with
low inter-stage pressures. This can be caused by wear, breakage, or fouling due to particulates in the
valves which prevent them from fully closing. Remove and service the valves every 4500 hours of
operation or if any of the inter-stage pressures vary from normal and other possible causes have been
eliminated.

REED VALVE INSPECTION AND REPAIR

a. Inspect the reeds for wear, cracking or warping. Examine valve seat for wear or
damage. A uniform imprint of the reed usually indicates the valve is sealing normally.
Radial lines or streaks extending outward indicate leakage. Clean or replace parts as
required.
b. If possible lap valve seat on a lapping plate using a fine lapping compound.
Alternately, on a flat plate, polish seat with 400 grit wet/dry sandpaper, then follow
with 600 grit.
c. As necessary, carefully sand the inside surface of the head where the o-rings and valve
components slide into place. Use 400/600 grit sandpaper or Scotch Bright.

Caution

When reinstalling valves, care must be taken to avoid damaging the O-rings. Lubricate O-
rings with an appropriate grease, such as RIX #45-1007 (Krytox O2 and breathing

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 compatible). Avoid tilting the valve seat when installing into the head and apply even
pressure around the circumference until the valve is completely installed.

See Drawing A5089 for O-ring installation and material information.

7.4.1 1ST STAGE VALVE ASSEMBLY

VALVE REMOVAL
a. Remove the head per Section 7.3.
b. Note the orientation of the suction reed valve. The suction valve is not attached to
the head. Remove the reed.
c. Remove the valve seat.
d. Remove the two screws, valve backing plate and discharge reeds from the seat.
e Discard the O-rings. Clean, repair or replace parts as necessary.

VALVE INSTALLATION
a. Attach discharge reeds and valve backing plate to valve seat. Torque screws to 12-15
inch-lbs. Inspect to see that valve rests flush against seat.
b. Apply a light film of appropriate grease to the new O-rings.
c. Install the large o-ring in the head and the small one on the valve seat assembly.
Install the valve seat with the discharge side of the seat going into the head and the
spring pin entering the small hole in the valve seat
d. Set the suction reed on the valve seat using a small amount of compatible O-ring
grease, which will hold the reed in place when the head is installed on the cylinder. If
a new reed is used, bend the tab to a 45 degree angle into the slot provided in the
valve seat. Do not put grease on or near the valve finger. Note: a 2nd o-ring can be
installed to assist in holding the suction reed in place during assembly.
e. Replace the O-ring on the cylinder liner. Note: if cylinder has been removed, make
sure valve cutout in top of cylinder is oriented to coincide with suction valve in head.
f. Carefully install the head assembly, making sure the suction reed valve does not fall
out of place. Note: it may be easier to mount the head on the cylinder off the
compressor and then install the two together. Install nuts and tighten sequentially in
5 ft-lb. increments to 30 ft-lbs.

7.4.2 2ND STAGE VALVE ASSEMBLY

VALVE REMOVAL
a. Remove the inlet and discharge lines on the first and second stage heads. The
3rd stage cylinder assembly may remain attached to the 2nd stage head if
desired. Remove the four nuts on the second stage head.
b. Lift off head with third stage assembly intact (3rd stage piston will remain in
cylinder).

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 c. Remove the valve seat from the cylinder head. Remove o-rings, suction reed
valve and discharge reed valves. Discard all o-rings. Care must be taken not
to damage valve seat.
d Inspect and repair or replace parts as necessary. All o-rings must be replaced.

VALVE INSTALLATION
a. Attach the two discharge reeds on the discharge (upper) side of valve seat and
the suction reed on the suction (lower) side of seat and tighten securely.
Inspect to see that the valves rest flush against the seat.
b. Install O-ring on top of cylinder.
c. Place valve assembly on cylinder, making sure that the valve seat is positioned
so that the spring pin enters the hole in the valve seat.
d. Install head on valve assembly with 1.025" diameter counter-bore for
discharge port towards the flywheel side of pump.
e. Bolt down assembly with nuts and flat washers and torque to 30 ft-lbs.

7.4.3 3RD STAGE VALVE ASSEMBLY

VALVE REMOVAL
a. Remove gas inlet and discharge lines from head. Remove the plug from the center top
of head. Remove the two nuts. Lift off head.
b. Remove the first o-ring. Be careful not to scratch the inside surface of the head.
Remove the suction valve stop and suction valve. Remove pin from valve seat,
being careful not to bend. Remove the second o-ring.
c. Remove the valve seat from the head using a soft rod or drift inserted through
the discharge port to tap the seat out of the head. NOTE: Often step "b" can be
skipped, and the entire assembly can be pushed out together.
d. Remove the third o-ring. Remove upper pin from head.
e. Inspect and repair or replace parts as necessary. All o-rings must be replaced.

VALVE INSTALLATION
Note: Before final assembly it can be helpful to do a trial assembly without the o-rings in
place.
a. Apply a light film of compatible grease to the new o-rings and to the outside
cylindrical surface of the valve seat (not the flats).
b. Place the pin in the head. Set the discharge valve over the pin in the head and
place the first o-ring in the valve pocket. Refer to applicable drawing for

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 proper orientation of the valve and reeds. NOTE: if either reed is installed
upside down, the valve will not function properly.
c. Install the valve seat with the pin hole in the discharge side of the seat aligned
over the pin in the head. Look thru the suction port in the head to check that
the pin has engaged the hole in the seat and the seat is inserted all the way to
the bottom of the head. Drill bits or needle nose pliers can be used to help
install and orient the valve seat, though only by holding the seat by the
discharge holes (these are located in the recessed area). Warning: Use of
pliers in the suction holes will damage the valve seat!
Note: After seat installation both suction and discharge holes must be visible
or seat is in backwards. Proper installation of discharge reed can be checked
by attempting to blow into discharge port. No air should pass if valve and seat
are correctly installed.
d. Install the second o-ring, second pin and the suction reed. Be careful to orient
the reed correctly with the seat.
e. Install the valve stop and the third o-ring.
f. Reinstall the head and tighten in 5 ft-lb. increments to 15 ft-lbs (lubed
threads).

Caution

The nuts holding the head in place must be removed and installed using an alternating
pattern. Verify the head is on square and not cocked. Overtightening may damage the
valves and/or head.

7.5 CYLINDERS
The compression cylinders must be removed to service the rings and pistons. Each cylinder should
be marked prior to removal to enable proper orientation upon reinstallation.

REMOVE AND INSTALL COMPRESSION CYLINDER.

a. Remove the cylinder head per Section 7.3.
b. The 3rd stage floating piston may be pulled out from the top of the cylinder with the
piston at TDC. Otherwise the piston may fall out the bottom when the 3rd stage
cylinder is removed.
c. See instructions in piston ring replacement section(s) for reinstallation procedure.

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7.6 PISTON RINGS
The rings should be replaced as necessary. The 3rd stage has a floating piston and there is a rider
ring on the piston rod that must be replaced (this is included with piston assy). Drawing A3534
provides instructions for installing the spiral rings.

7.6.1 REPLACE PISTON RING - FIXED PISTON - 1ST STAGE

The preferred method for changing the 1st stage rings is to remove the entire cylinder assembly to a
workbench. See instructions in following sections for removal, replacement and readjustment of
piston rod. Then proceed as follows:

a. Remove the cylinder head per Section 7.3.

b. Lift the cylinder off the piston. Note: if piston will be removed, follow instructions in
following sections for removal, replacement and readjustment of piston rod.
c. Clean and inspect the cylinder bore for wear or damage (see ch 5). Wear must be
within the tolerance specified at end of this chapter.
d. Remove and discard the used rings and backup o-rings. Clean the ring grooves and
install new o-rings. Carefully spread each new ring and install in groove, making sure
the ends of the ring fit completely into the groove.
f. Compress each ring by hand and work the piston into the bore. Rotating piston may
be helpful. Slide piston back and forth in the bore several times, then remove and
check to ensure all rings are fully seated in the ring grooves and have not pulled out
and over side of the piston. If necessary the last 1/4” (6 mm) of the piston ring can
be cut off.
g. Reinstall head per the valve assembly instructions in Section 7.4.1. Note: make sure
valve cutout in top of cylinder (if any) is oriented to coincide with suction valve in
head.
g. Reinstall cylinder assembly onto compressor.
h. Readjust piston rod per instructions in Section 7.8 (if removed).
i. Rotate the flywheel by hand several times to be certain that the parts are free.

Piston ring break-in: None required.

7.6.2 REPLACE PISTON RING - FIXED PISTON – 2ND STAGE

The preferred method for changing the 2nd stage rings is to remove the entire cylinder assembly to
a workbench. See instructions in following sections for removal, replacement and readjustment of
piston rod. Then proceed as follows:

a. Pull the piston rod out of the cylinder.

b. Remove the 2nd stage cylinder head in accordance with Section 7.4.2.

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 c. Clean and inspect the cylinder bore for wear or damage (see ch. 5). Wear must be
within the tolerance specified at end of this chapter. Repair or replace as necessary.
d. Remove and discard the used rings and backup o-rings. Clean the ring grooves and
install new o-rings. Carefully spread each new compression ring and install in the
groove. Be certain the ends of the ring fit completely into the groove. Install rings
with gap 180˚ from the ring above.
e. Lay the cylinder flat on a clean workbench, or if possible, set cylinder upside down
such that the 3rd stage part of the rod can protrude thru top of cylinder during
installation.
f. Compress the top ring by hand and work the piston into the bore, rotating (in one
direction only) to assist in the installation. Repeat for the remaining rings. Slide
piston back and forth in the bore a few times, then remove piston assembly and check
to ensure all rings are fully seated in the ring grooves and have not pulled out and
over the side of the piston. If necessary the last 1/4” (6 mm) of the piston ring can be
cut off.
g. Reinstall the 2nd stage head per valve assembly instructions, Section 7.4.2
h. Reinstall cylinder assembly onto compressor.
i. Adjust piston rod height per 7.8.
j. Rotate the flywheel by hand several times to be certain that the parts are free.

Piston ring break-in: None required.

7.6.3 REPLACE PISTON RING - FLOATING PISTON - 3RD STAGE

Note: See drawing in the back of this manual for details of the floating piston assembly.

a. Remove the cylinder head per Section 7.3. Note orientation of suction/discharge
ports.
b. Rotate crankshaft by hand until piston is at top of cylinder, then remove piston.

Note: Rider ring on piston rod cannot be changed unless the cylinder is removed.

c. Remove cylinder. Inspect condition of cylinder and piston and replace if necessary.
Wear must be within the tolerance specified at end of chapter.
d. Replace rider ring on end of piston rod.
e. Replace piston rings and o-ring expanders, and piston if necessary.
f. Install piston in sleeve tool and insert piston back into cylinder with stubbed end up
toward head.

g. Reinstall the cylinder and head in accordance with instructions.

h. Rotate the flywheel by hand several times to be certain that the parts are free.

Piston ring break-in: None required.

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7.7 PISTON RODS & OIL WIPER SEALS
REMOVE PISTON ROD

a. Remove cylinder and head in accordance with the appropriate sections of Chapter 7.
Remove distance piece covers.
b. Turn the flywheel by hand to position the piston at top dead center.
c. Remove the set screw (5/32" allen wrench required) and slide the oil wiper box
upward on the rod until the guide piston jam nut is exposed.
d. Loosen the jam nut and screw the piston rod assembly out of the guide piston. The
piston adjustment tool (#88-A8037) or small screwdriver can be inserted in the hole
in the rod to aid in turning the rod.

NOTE: It is recommended that the oil wiper seals be replaced anytime the rods are removed. Rod
surface must not exceed a finish of 16 RMS.

7.7.1 INSTALL PISTON ROD AND OIL SEALS

a. Install new oil seals in oil packing box (lips facing down). Pre-lubricate seals to avoid
damage during startup. Inspect o-ring on oil wiper box and replace if necessary.
b. Install o-ring slinger onto piston rod. Slide oil packing box onto rod and then attach
piston rod jam nut with machined side down.
c. Screw the rod into the guide piston until the threads bottom.
d. Reinstall the cylinder assemblies and adjust piston rod per instructions below.

Caution

The piston to cylinder head clearance adjustment is critical. Insufficient

clearance will result in the piston hitting the head.

7.8 PISTON ROD ADJUSTMENT

a. Turn the flywheel by hand to position the piston at top dead center.
b. Screw the rod out of the guide piston until the piston touches up against the valve.
c. Be certain the piston is still at top dead center, then screw the piston down one half of
one turn. The piston-to-cylinder head clearance will be approximately .040 inch.
d. Tighten the jam nut to 25 ft-lbs. torque.
e. Slide the oil wiper box into position, pushing down hard to ensure it is fully seated.
Tighten locking screw hand tight with 7/64" allen wrench (Note: overtightening may
dislodge packing box) and then secure using the jam nut.

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 f. Turn the flywheel by hand a few revolutions to be certain that everything is clear before
starting the compressor.

Oil Packing Break-In: None required.

7.9 CRANKSHAFT SHAFT SEAL

The shaft seal is located at the flywheel end of the crankshaft. If significant oil leakage develops, it
should be replaced.

REMOVAL
a. Remove flywheel and bushing by removing the three cap screws that secure the
flywheel and hub to the crankshaft. Use these screws in the hub tapped holes to jack
the flywheel from the bushing.
b. If possible, remove the seal with crankshaft intact. If this is not successful, the entire
unit must be disassembled and the crankshaft removed prior to seal removal.
c. Inspect the crankshaft surface where the oil seal makes contact. Remove any burrs
or scratches that might inhibit a tight seal. Be careful to avoid getting any foreign
material on the exposed bearing.

REASSEMBLY
a. Reassemble in the reverse order, using a new oil seal.
b. Be sure that the flywheel and drive sheave are lined up. This can be accomplished by
laying a straight edge across the sheave faces.

7.10 GUIDE CYLINDERS

REMOVE AND INSTALL GUIDE CYLINDERS
a. Remove compression cylinder assemblies and oil wipers. Use special tool to hold
guide cylinder when removing piston rods.
b. Remove nuts holding down the guide cylinder and carefully lift the guide cylinder off
of the guide piston.
c. Reinstall in reverse order. Install with mark "M" (on lower flange of cylinder)
towards flywheel. Use new gaskets if necessary.

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7.11 CONNECTING RODS
The connecting rod uses automotive type bearing inserts on the large end and a pressed in needle
bearing on the piston pin end. If the clearances are not within the tolerances, the bearing shell,
bushing or wrist pin should be replaced.

REPLACE CONNECTING RODS AND BEARING SETS

a. Drain oil from crankcase. Remove heads, compression cylinders, piston rods, and
packing in accordance with the appropriate sections of Chapter 7.
b. Remove the nuts holding the guide cylinder to the crankcase and lift the complete
assembly including distance piece up and off the guide piston.
c. Remove the two nuts and separate the connecting rod. The oil dipper does not need
to be removed. Lift the connecting rod and guide piston assembly out of the
crankcase. Remove the capscrew in guide piston and push the wrist pin out to
separate the guide piston from the rod. Match mark the connecting rod upper end
and cap if necessary.
d. Using a micrometer, inspect the connecting rod bearing, bushing and crankshaft
journal for proper size, out of roundness or taper. Repair or replace as required.
e. Inspect the wrist pin and needle bearings for wear or damage; replace if necessary.
When pressing needle bearings into the connecting rod, be sure to press against the
stamped end (end with identification markings) of bearings. There are two needle
bearings per rod and the end of each bearing should be flush with the outside of the
connecting rod
f. Install the guide piston on a new rod in reverse sequence of removal.
g. Clean the rod and journal with a lint-free cloth and install new bearing shells in each
half of the connecting rod.
h. Apply a coating of crankcase oil on the bearing shell and crankshaft journal surface.
Position the guide piston and rod on the crankshaft and install the cap, using the
matching numbers on the upper end and cap. Note: See photos below for correct oil
dipper location. Install lockwashers and nuts and tighten the nuts to 15 ft-lbs torque.
i. Reinstall oil dippers on connecting rod caps if previously removed. Both rods require
oil dippers. When installed, each rod should be oriented such that the dipper points
downward towards the oil sump. If dipper does not point downward the rod must be
pulled out and reversed. Torque the oil dipper bolt to 6 ft-lbs.

Warning
Incorrect installation of oil dippers can lead to insufficient
lubrication and catastrophic failure.

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 Incorrect Orientation Correct Orientation

j. Reinstall the guide cylinders over the guide pistons.

k. Fill crankcase with new oil.
l. Reinstall the compression cylinder assemblies per instructions.
m. Install distance piece covers.

7.12 MAIN BEARINGS

The crankshaft is supported in the crankcase by two main bearings. They are a tapered roller design.
Lubrication is supplied by crankcase oil splash. There is no scheduled maintenance for the main
bearings.

REMOVE MAIN BEARINGS.

a. The compressor must be completely disassembled. See applicable
instructions.
b. Remove the flywheel and bushing by removing the three cap screws that
secure the flywheel and bushing to the crankshaft. Use these screws in the
bushing tapped holes to jack the flywheel and bushing apart. This will
"unlock" the bushing from the crankshaft.
c. Remove the bearing support cover and connecting rods. NOTE: There are
notches in the bearing support cover gasket so that the gasket is not damaged
during disassembly.
d. Pull the crankshaft forward and remove it from the crankcase.
e. With a suitable puller, remove the bearings from each end of the crankshaft.

INSTALL MAIN BEARINGS.

a. Thoroughly clean the crankcase, crankshaft and bearing cover.
b. Press a new bearing on each end of the crankshaft main bearing journals.
Preheating the bearings to 250˚F will facilitate installation.
c. Install a new shaft seal in the crankcase.
d. Install the crankshaft with bearings into the crankcase.
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 e. Install the bearing plate with new gasket. Tighten the bearing plate bolts to
30 ft-lbs.
f. Install the connecting rods and guide cylinders. Rotate by hand insure all turns
freely. Fill the crankcase to the proper level with proper oil.
g. Install the flywheel, hub and key, drive V-belts and beltguard in the reverse
order of removal. Insure that flywheel and driver sheave are lined up.
h. Replace compression cylinder assemblies per instructions.
i. Connect all other equipment in reverse order of disassembly.
j. Turn the flywheel by hand a few revolutions to be certain everything is clear
before starting the compressor.
k. Start the compressor and check for gas or oil leaks.

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CHAPTER 8: CLEARANCES & TOLERANCES

Nominal
Indicator Dimensions Wear Limit
Crankshaft Roller Bearings By inspection for pits, scratches,
knocking or rough running.
Crankshaft Journals 1.811 Dia. Dia. -.002 in. Max.
Connecting Rod Bearing 1.814 Dia. Dia. +.002 in. Max.
Journal and Bearing Clearance .003 .0055 in. Max.
Wrist Pins 1.000 Dia. Dia. -.0015 in. Max.
Wrist Pin Bearing 1.000 Dia. Dia. +.002 in. Max.
Wrist Pin and Bearing Clearance .001 .004 in. Max.
Guide Cylinder: 4.331 Dia. Dia. +.002 in. Max.
Guide Piston: 4.325 Dia. Dia. -.002 in. Max.
Guide Piston to Cylinder Clearance: .006. .009 in.. Max.
Piston Rods: .500 Dia. .002 in. wear

Pistons:
2 1/4 2.230 / 2.220 not a wearing part
1 3/8 1.370 / 1.368 .003 diametrical wear
5/8 .6235 / .623 .001 diametrical wear

Cylinders Bores:
2 1/4 2.250 / 2.251 .004 in. diametrical wear
1 3/8 1.375 / 1.376 .002 in. diametrical wear
5/8 .625 / .626 .001 in. diametrical wear

Valve Reeds: Replace at the presence of any

visible ridge or other damage

Valve Seats: Replace if worn or pitted enough

to cause insufficient seating.

Seals: Visual Any leakage should be corrected

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 26

CHAPTER 9: SPECIFIED TORQUES
All torque values assume lubed threads unless otherwise specified.

Item Foot Pounds (Ft-lb.)

1st Stage Head Nuts .................................................................................. 30
2nd Stage Adapter Plate Nuts ................................................................... 30
2nd Stage Head Nuts................................................................................. 30
3rd Stage Head Nuts ................................................................................. 15
Oil Wiper Box Gland Bolts....................................................................... 5
Oil Wiper Box Set Screw....................................................................... 1-2
Piston Rod Jam Nuts ............................................................................... 25
Distance Piece Mounting Bolts ............................................................... 30
Guide Cylinder Nuts ............................................................................... 19
Connecting Rod Nuts .............................................................................. 15
Crankcase End Cover Bolts .................................................................... 30
Flywheel Bushing Bolts .......................................................................... 40
Motor Sheave Hub Bolts, SD bushing (1/4-20) ...................................... 9*
Motor Sheave Hub Bolts, SK bushing (5/16-18) .................................. 15*
_________________________
* Dry Torque

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 27

 APPENDIX
1. Compressor Parts List
2. Figure 1: General Compressor Detail, 1/4
3. Figure 2: General Compressor Detail, 2/4
4. Figure 3: General Compressor Detail, 3/4
5. Figure 4: Compression Valve Detail
6. Figure 5: General Compressor Detail, 4/4
7. Figure 6: First Stage Compression Stage Detail
8. Figure 7: Second and Third Stage Compression Stage Detail
9. Figure 8: Suction and First Stage Plumbing Detail
10. Figure 9: Second and Third Stage Plumbing Detail
11. Figure 10: Final Discharge Plumbing Detail
12. Figure 11: Crankcase Assembly Detail
13. Figure 12: Connecting Rod Detail
14. Figure 13: Control Box Assembly Detail, 1/3
15. Figure 14: Control Box Assembly Detail, 2/3
16. Figure 15: Control Box Assembly Detail, 3/3
17. Figure 16: Wiring Schematic
18. Figure 17: Electrical Schematic
19. Table 1: Wiring and Electrical Schematic Legend
20. Table 2: Control Box Transformer and Overload Setpoints
21. Figure 18: Flow Schematic
22. Interface Drawing
23. A5089: O-ring Installation & Material Information
24. A3534: Instruction for Installing Spiral Piston Rings on Floating or Removeable Pistons
25. Manufacturer’s Cutsheet: Discharge Pressure Switch
26. Manufacturer’s Cutsheet: Suction Pressure Switch
27. Manufacturer’s Cutsheet: Temperature Controller
28. Service Log

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 28

 Compressor Parts List; Reference Figures 1-10
It is the User’s responsibility to maintain the cleanliness of factory cleaned parts and any existing
portions of the gas stream that may be exposed during installation or maintenance.

POSITION PART NUMBER QUANTITY DESCRIPTION *

NUMBER
2 32-4038 4 Each BOLT, SOCKET HEAD
4 10-C2580 1 Each MANIFOLD
5 20-657 5 Each WASHER, AN, 5/16
6 040079-01 3 Each SCREW, SOCKET HEAD, 5/16-18, 3 L
7 515-910 1 Each RELIEF VALVE
8 515-792 1 Each RELIEF VALVE
9 515-24662 1 Each RELIEF VALVE
10 515-911 1 Each RELIEF VALVE
11 60-865 1 Each PRESSURE GAUGE
12 53-4744 12 Each NUT, LOCK,
13 040327-01 12 Each SCREW, FLAT HEAD, PHILLIPS
14 20-6375 12 Each WASHER, FLAT, AN, #6
15 60-855 1 Each PRESSURE GAUGE
16 60-24647 1 Each PRESSURE GAUGE
17 60-853 1 Each PRESSURE GAUGE
18 715-47-1 4 Each HAND VALVE
19 54P-44FBUSS 5 Each CONNECTOR, MALE
20 XA455-B6239 4 Each TUBE, MANIFOLD TO HAND VALVE
21 123-904-5 6 Each O-RING 9
22 A554-A8039-1 1 Each TEE, BRANCH- MODIFICAT
23 54P-4C5BUSS 4 Each ELBOW, ST
24 54P-6C5BUSS 7 Each ELBOW, ST, 3/8 T X 9/16-1
25 123-906-5 9 Each O-RING, 13
26 53-A7938 2 Each NUT, SPECIAL
27 A1-D2602 1 Each CYLINDER ASSEMBLY
28 2-D2391 1 Each HEAD
29 15-B3908 1 Each VALVE SEAT
30 15-A3719-1 1 Each VALVE PLATE, INLET 1
31 17-410 1 Each PIN, ROLL
32 15-A3720 2 Each REED VALVE, DISCHARGE 2
33 15-A3946 1 Each VALVE BACKING PLATE
34 34-607 2 Each SCREW 6-32

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 29

*Recommended Spares
 POSITION PART NUMBER QUANTITY DESCRIPTION *
NUMBER

COMPRESSOR PARTS LIST CONTINUED; REF FIGURES 1 -10

35 123-021-5 1 Each O RING 2

36 123-042-5 1 Each O RING 2
37 A8-C2451-1 1 Each PISTON ASSEMBLY
38 222-1000 2 Each SLINGER, 1/2" ROD
39 18-C758-6R1 1 Each RING, RIDER 1
40 18-C1791-18-1R1 2 Each RING, COMPRESSION 2
41 123-224-5 2 Each O-RING 2
42 119-C2452 2 Each WIPER BOX, OIL
43 125-70 4 Each SHAFT SEAL, 1/2" 4
44 215-A158-5 2 Each PACKING GLAND
45 32-1128 26 Each BOLT, HEX HEAD,
46 20-12877 30 Each WASHER
47 123-036-5 2 Each O RING 2
48 53-4409 2 Each NUT, HEX, SS
49 32-13664 2 Each BOLT, SOCKET HEAD, #10-32
50 040491-01 4 Each WASHER, FLAT, SAE
51 53-4103 12 Each NUT, HEX
52 15-C2445 1 Each VALVE PART
53 123-044-5 1 Each O RING 2
54 123-045-5 1 Each O RING 2
55 123-035-5 1 Each O-RING 2
56 123-025-5 1 Each O-RING 2
57 15-A7792 3 Each REED VALVE 3
58 32-1184 2 Each BOLT, FLAT HEAD
59 32-4171 4 Each BOLT, ROUND HEAD
60 A1-D2604 1 Each CYLINDER ASSEMBLY,
61 2-C2446 1 Each HEAD, CYLINDER
62 A1-D2601 1 Each CYLINDER ASSEMBLY
63 105-C1993-56 2 Each STUD, THREADED ROD
64 20-656 22 Each WASHER, AN, 3/8"
65 15-B5431-1 1 Each VALVE SEAT
66 15-B2686 2 Each REED VALVE 2
67 17-757 2 Each PIN, LOCATING
68 123-024-5-90 3 Each O RING 5
69 15-A7457 1 Each VALVE STOP
70 2-B4147-1 1 Each HEAD, CYLINDER
71 53-4503 2 Each NUT, HEX

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 30

*Recommended Spares
 POSITION PART NUMBER QUANTITY DESCRIPTION *
NUMBER

COMPRESSOR PARTS LIST CONTINUED; REF FIGURES 1 -10

72 8-B6142 1 Each PISTON, COMPRESSION 1

73 123-013-5 8 Each O-RING 8
74 18-C1791-5-1R1 8 Each PISTON RING 5/8" 8
75 A508-D2605 1 Each PISTON ROD ASSEMBLY,
76 18-C1147-5R1 1 Each RING, RIDER 1
77 123-120-5 4 Each O RING, VITON 4
78 18-C1791-11-1R1 4 Each PISTON RING, 1 3/8" 4
79 18-C758-3R1 1 Each RIDER RING, 1 3/8" 1
80 123-151-5 1 Each O-RING 1
81 XA455-C2556 1 Each TUBE, MANIFOLD TO TEE
82 71-11732 1 Each HEAT EXCHANGER,
83 54P-6JBUSS 3 Each TEE, UNION
84 XA455-C2557 1 Each TUBE, TEE TO 2ND STAGE SUCTION
85 54P-6HBUSS 2 Each UNION
86 XA455-C2554 1 Each TUBE, 2ND STAGE DISCHARGE TO HX
87 XA455-C2573 1 Each TUBE, 3RD STAGE DISCHARGE TO HX
88 54P-64HBUSS 1 Each UNION
89 XA455-B6210 1 Each TUBE, 1ST STAGE DISCHARGE TO HX
90 554-B6199-1 1 Each REDUCER, STR. THRD.
91 123-910-5 1 Each O-RING
92 XA455-C2559 1 Each TUBE, MANIFOLD TO TEE
93 XA455-C2555 1 Each TUBE, HX TO 3RD STAGE SUCTION
94 54P-163/4F5OGS 1 Each FEMALE PIPE ADAPTER
95 123-916-5 1 Each O-RING, VITON 2
96 54P-3/4HPS 1 Each PIPE PLUG, HEX HEAD
97 XA455-25160-9 1 Each TUBE, HX TO RELIEF VALVE
98 XA455-25160-11 1 Each TUBE, HX TO BPR
99 54P-6GBUSS 1 Each CONNECTOR, FEMALE
100 A77-25879 1 Each FILTER, INLINE
101 615-27587 1 Each CHECK VALVE, 1/4" FNPT
102 54P-1/4CRSS 1 Each PIPE ELBOW, MALE
103 116-A8005 1 Each REGULATOR, BACK PRESS.
104 76-714-2500 1 Each PRESSURE SWITCH
105 54P-1/4HHPSS 1 Each PIPE PLUG, HOLLOW HEX
106 123-904-3 2 Each O-RING, TEFLON 3
107 54P-41/4F5OGSS 1 Each FEMALE PIPE ADAPTER
108 54P-1/4MROSS 1 Each PIPE TEE, MALE RUN

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 31

*Recommended Spares
 POSITION PART NUMBER QUANTITY DESCRIPTION *
NUMBER

COMPRESSOR PARTS LIST CONTINUED; REF FIGURES 1 -10

109 54P-1/41/8PTRB 1 Each PIPE THREAD REDUCER

110 138-5531 1 Each RTD
111 54P-4F5BUSS 1 Each CONNECTOR, ST
112 XA455-C2576 1 Each TUBE, 1ST STAGE HEAD TO PG
113 54W-1110X4B 1 Each NUT, SAE 45 DEGREE FLARE
114 XA455-C2577 1 Each TUBE, MANIFOLD TO SUCTION PS
115 91-A4992-1 1 Each KEY, SQUARE,
116 63-5514 1 Each BUSHING
117 36-C2828-1 1 Each FLYWHEEL, DUCTILE IRON
118 11-175-SF 1 Each BUSHING, SHEAVE, SF
119 11-138-SDS 1 Each SDSX1-3/8
122 16-A8420 4 Each GASKET 4
123 14-A8020-4 4 Each WINDOW COVER, 2V3B
124 A156-26685 1 Each BELT GUARD 2V
125 20-692 8 Each FLATWASHER, 5/16 NOM.
126 32-1162 4 Each BOLT, HEX HEAD,
127 53-77 4 Each NUT, HEX
142 61-8251 1.375 Foot CONDUIT, NONMETALLIC,
143 138-8255 2 Each FITTING, NONMET 1/2" 45EL
144 54P-4P50NSS 1 Each PLUG, ST THD, HEX HEAD
145 A70-22975 1 Each BEDPLATE ASSY, 2V3
146 A100-24523 1 Each CRANKCASE ASSEMBLY,
147 16-A7937 2 Each GASKET 2
148 66-D2725 2 Each DISTANCE PIECE - 2V3
149 40-D2713 1 Each BRACKET
150 A158-B12708 1 Each 2V3 ELECTRICAL BOX, CE
151 76-713-40 1 Each PRESSURE SWITCH
152 42-116 1 Each MOTOR WITH FAN, 230 V
153 148-C2544 1 Each SHROUD, FAN
154 40-A8045 1 Each BRACKET, LIFTING
155 138-8258 1 Each FITTING, NONMET 3/4" 45EL
156 138-8259 1 Each FITTING, NONMET 3/4" 90EL
157 40-B6240-1 1 Each BRACKET, BPV - 2V3
158 38-C2550 1 Each PLATE, ADAPTER
159 105-C1993-76 4 Each STUD
160 54-4746 2 Each PIPE NIPPLE
161 54W-70X4B 2 Each ELBOW, MALE

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 32

*Recommended Spares
 POSITION PART NUMBER QUANTITY DESCRIPTION *
NUMBER

COMPRESSOR PARTS LIST CONTINUED; REF FIGURES 1 -10

162 54W-64X4B 1 Each TEE, UNION

163 455-C2574-2 1 Each TUBE
164 455-C2574-1 1 Each TUBE
165 455-C2574 1 Each TUBE
166 84-25701 1 Each GROMMET, PUSH-IN,
167 138-617 1 Each ELECTRICAL FITTING
168 138-605 1 Each ELECTRICAL FITTING
169 138-616 1 Each ELECTRICAL FITTING,
171 32-4505 4 Each BOLT, ROUND HEAD
172 32-4735 4 Each BOLT, HEX HEAD,
173 20-678 12 Each WASHER, FLAT SAE 3/8
174 32-4734 4 Each BOLT, HEX HEAD,
175 32-4521 1 Each BOLT, HEX HEAD,
176 53-30170 8 Each NUT, HEX 5/16-18
177 20-1009 12 Each WASHER, FLAT SAE
178 32-4529 3 Each BOLT, HEX HEAD,
179 32-13663 12 Each BOLT, SOCKET HEAD
180 32-4577 2 Each BOLT, HEX HEAD,
182 105-C1993-54 4 Each STUD, 17-4 SS
183 105-C1993-80 4 Each STUD, THREADED ROD
184 20-23161 4 Each WASHER, M4, ZINC PLATED
185 32-10321 4 Each BOLT, HEX HEAD,
186 107-26282 1 Each MOTOR, 10 HP, 215T, TEFC,
187 61-8252 3 Foot CONDUIT, NONMET PVC 3/4"
188 142-215T 1 Each SLIDE BASE, MOTOR
189 53-4087 4 Each NUT, LOCK
190 138-609 1 Each ELECTRICAL FITTING
191 53-32 4 Each NUT, LOCK
192 20-1010 8 Each WASHER, 1/2" FLAT SAE
195 040076-02 1 Each KNOCKOUT PLUG, CONDUIT SIZE 1/2
196 040077-01 1 Each VIBRATION DAMPING LOOP CLAMP
197 040078-01 1 Each NUT, HEX, 3/8-24, GRADE 5
198 53-4599 2 Each NUT, HEX, NYLOCK
199 32-4130 2 Each BOLT, HEX HEAD,
201 123-119-5 1 Each O RING, VITON 1
202 20-4031 4 Each WASHER, FLAT SAE
203 32-1153 4 Each BOLT, HEX HEAD,

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 33

*Recommended Spares
 POSITION PART NUMBER QUANTITY DESCRIPTION *
NUMBER

COMPRESSOR PARTS LIST CONTINUED; REF FIGURES 1 -10

204 53-4088 4 Each NUT, LOCK

205 040326-01 1 Each BUSHING
206 20-1013 1 Each WASHER, CONDUIT,
207 040940-01 4 Each SCREW, SOCKET HEAT CAP,
208 20-9749 8 Each WASHER, FLAT, 5/16,
210 20-15106 2 Each WASHER, NORD-LOCK, 3/8

Crankcase Assembly Specific Parts; Reference Figure 11

Position Part number Quantity Description *
Number
1 32-23425 4 EACH BOLT, HEX HEAD,
2 38-D2965-1 1 EACH OIL END COVER PLATE
3 49-414 1 EACH OIL FILTER - BREATHER
4 16-B7036 1 EACH GASKET, END COVER 1
5 181-1001 2 EACH BALL BEARING
6 5-C2760 1 EACH CRANKSHAFT
7 100-D2961 1 EACH CRANKCASE
8 53-4891 8 EACH NUT, HEX
9 1-D2962 2 EACH CYLINDER, GUIDE
10 16-B7037 2 EACH GASKET, GUIDE CYL BASE 2
11 105-1028 8 EACH STUD, THREADED ROD
12 125-1003 1 EACH SEAL, SHAFT 1
13 60-1078 1 EACH GAUGE, SIGHT LEVEL
14 20-12877 4 EACH WASHER
15 54-3076 1 EACH CAP
16 715-19882 1 EACH HAND VALVE
17 54-5153 1 EACH PIPE NIPPLE,
18 17-A9149 2 EACH WRIST PIN, 2V - 3V
19 32-4066 2 EACH BOLT, SOCKET HEAD
20 8-24432 2 EACH GUIDE PISTON, 2V,
21 62-12362 1 EACH LABEL, OIL FILL, 2V3
22 20-672 12 EACH WASHER, LOCKING
23 A7-B8156 2 EACH CONNECTING ROD, ASSEMBLY

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 34

*Recommended Spares
 Connecting Rod Assembly Specific Parts; Reference Figure 12

Position Part number Quantity Description *

Number
1 17-A8559 1 EACH PIN, SPLASH
2 32-1127 1 EACH BOLT, SOCKET HEAD
3 20-1017 1 EACH WASHER, LOCKING
4 32-A8560 2 EACH BOLT, SPECIAL
5 7-C3016 1 EACH CONNECTING ROD
6 21-5854 1 EACH BEARING, ROD JOURNAL
7 20-10241 2 EACH WASHER, FLAT, 5/16
8 53-10240 2 EACH NUT, HEX, CENTER LOCK
9 181-7066 1 EACH BEARING, NEEDLE

Control Box Assembly Specific Parts; Reference Figures 13 -15

Position Part number Quantity Description *
Number
1 158-B12708-01 1 EACH ELECTRICAL ENCLOSURE
2 158-B12708-02 1 EACH TEMP CONTROLLER
3 158-B12708-03 1 EACH INDICATOR LIGHT PLATE
4 158-B12708-04 1 EACH INDICATOR LIGHT, RED
5 158-B12708-05 1 EACH INDICATOR LIGHT, GREEN
6 158-B12708-06 1 EACH BLACK BUTTON, 1 N.O. CONTACT
7 158-B12708-07 1 EACH EMERGENCY STOP SWITCH, RED
8 158-B12708-08 1 EACH 22MM BUTTON INDICATOR PLATE
9 158-B12708-09 1 EACH E-STOP INDICATOR PLATE
10 158-B12708-10 1 EACH 3 POSITION SWITCH PLATE
11 158-B12708-11 1 EACH RED INDICATOR LIGHT PLATE
12 158-B12708-12 1 EACH SWITCH, 3 POSITION SELECTOR,
13 158-B12708-13 1 EACH TRANSFORMER
14 158-B12708-14 1 EACH SELECTOR HANDLE
15 158-B12708-15 1 EACH DISCONNECT SWITCH
16 158-B12708-16 1 EACH SELECTOR SWITCH SHAFT
17 158-B12708-17 1 EACH DIN RAIL
18 158-B12708-18 1 EACH RELAY, IEC, 2 NO & 2 NC
19 158-B12708-19 1 EACH CIRCUIT BREAKER, 2 POLE
20 158-B12708-20 1 EACH CIRCUIT BREAKER, 1 POLE
21 158-B12708-21 3 EACH TERMINAL BLOCK
22 158-B12708-22 15 EACH TERMINAL BLOCK
23 158-B12708-23 1 EACH HOUR METER

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 35

*Recommended Spares
 24 158-B12708-24 1 EACH CONTACTOR, 3 PHASE
Position Part number Quantity Description *
Number

CONTROL BOX ASSEMBLY SPECIFIC PARTS; REF FIGURES 13-15

25 158-B12708-25 1 EACH OVERLOAD, 8-32 AMPS,

26 158-B12708-26 1 EACH GASKET, HOUR METER
27 158-B12708-27 6 EACH TERMINAL BLOCK, END STOP
28 158-B12708-28 1 EACH DIN RAIL
29 158-B12708-29 2 EACH TERMINAL BLOCK END COVER
30 158-B12708-30 1 EACH CAPACITOR, 4UF,
31 158-B12708-31 1 EACH BUSHING, GROMMET,
32 158-B12708-32 1 EACH TERMINAL BLOCK,
33 158-B12708-33 2 EACH 2 POSITION JUMPER
34 158-B12708-34 1 EACH 3 POSITION JUMPER

Model Specific Parts

MODEL NUMBER PART NUMBER QUANTITY

MOTOR SHEAVE OPTION

2V3B-4.1V-P1A-N2 36-2B056 1 Each

2V3B-4.1V-P1B-N2 36-2B056 1 Each
2V3B-4.1V-P1C-N2 36-2B066 1 Each
2V3B-4.1V-P1E-N2 36-2B056 1 Each

DRIVE BELT OPTION

2V3B-4.1V-P1A-N2 41-B75-1 2 Each

2V3B-4.1V-P1B-N2 41-B75-1 2 Each
2V3B-4.1V-P1C-N2 41-B76-1 2 Each
2V3B-4.1V-P1E-N2 41-B75-1 2 Each

Additional Parts Available

PART NUMBER DESCRIPTION COMMENT
A8-A3485-5-9 FLOATING PISTON ASSEMBLY REPLACEMENT FOR ITEMS 72, 73 & 74
204-2V3-N2 SPARES KIT RINGS, VALVES & OTHER SOFT GOODS
204-2V3-8K-N2 MAINTENANCE KIT 8 THOUSAND HOUR MAINTENANCE KIT
204-2V3-40K- SERVICE KIT 40 THOUSAND HOUR MAINTENANCE KIT
N2

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 36

*Recommended Spares
 4X 51 64 159

158

148 2X

147 2X (GASKET)

154
3X
6X 177 176 178 3X

(BOLT AND WASHER) 185 184

SECTION H-H
4X (BOLT AND WASHER) 173 172
166 (GROMMET)

4X 182 H 183 4X

187

160
H
(ELBOW) 161

163

162
160 161

165

164 186

146

188 (SLIDE BASE)

4X
174
(BOLT AND WASHER) 173

FIGURE 1: GENERAL COMPRESSOR DETAIL, 1/4

RIX Industries MAN‐2V3B‐4.1V-P1-N2 Page 37

 (BUSHING) 168

4X 167
171 189
(BOLT, WASHER, AND NUT) 202

169 (REDUCER)

SECTION G-G
149 151

152
G

153 G

179 64 12X (BOLT AND WASHER)

FIGURE 2: GENERAL COMPRESSOR DETAIL, 2/4

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 38

 208 8X

4X 207

176 4X

L K

DETAIL L

(KNOCKOUT, NOT SHOWN) 195

190 155 2X (BOLT AND

180 64 WASHER)

157
177 2X
(NUT, 156 (90 CONNECTOR)
176
NOT SHOWN)
175

4X 173 191

205 (BUSHING)

8X
204

4X 203

DETAIL K 4X
204

FIGURE 3: GENERAL COMPRESSOR DETAIL, 3/4

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 39

 28

61

34

59 2X (SCREW)
35
33

57 2X
70
54
32
31

56

36

55

29

52 2X 67

30
66

57 58 2X
68
2X (SCREW) 59
1ST STG HEAD 65

SUBASSEMBLY 53 68

66

2ND STG HEAD 69

SUBASSEMBLY 68

3RD STG HEAD

SUBASSEMBLY
FIGURE 4: COMPRESSION VALVE DETAIL

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 40

 2X
71
4X
51 4X
51 63 2X
4X 182
183 4X 5
2X
50
4X 64
4X

DETAIL P
DETAIL M DETAIL N
12 13 14 12X (SCREW, WASHER, AND NUT)

16 11
17 15

DETAIL Q
B

A P

N
M

145

FIGURE 5: GENERAL COMPRESSOR DETAIL, 4/4

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 41

 (O-RING) 80

R
2X (PISTON RING) 40

2X (O-RING) 41

37

(RIDER RING) 39

27 DETAIL R

8X 46 45
122 2X (GASKET)

2X (WINDOW) 123
25 (O-RING)

38

2X (BOLT) 45 44 (OIL WIPER CAP)

43 2X (OIL WIPER SEAL)

2X (WASHER) 46
42

26 (JAM NUT)
48 49
47 (O-RING)

SECTION A-A

FIGURE 6: FIRST STAGE COMPRESSION STAGE DETAIL

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 42

 72

3RD STAGE SUCTION

3RD STAGE DISCHARGE

73 8X (O-RING)

S
74 8X (PISTON RING)
62

(RIDER RING) 76

2ND STAGE SUCTION 2ND STAGE DISCHARGE

DETAIL S 201

75

60

122 2X (GASKET)
8X 46 45

25 (O-RING)

2X (WINDOW) 123
77 4X (PISTON RING)
38

44 78 4X (O-RING)
2X (BOLT) 45

43 2X (OIL WIPER SEAL)

2X (WASHER) 46 79 (RIDER RING)

26 (JAM NUT)
42

48 49
47 (O-RING)

DETAIL T

SECTION B-B

FIGURE 7: SECOND AND THIRD STAGE COMPRESSION STAGE DETAIL

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 43

 U

2X 19 2X 18 23 21 (ELBOW AND O-RING)

3X 5 6 20 2X 210

25 24

21 23 22

21

113 (FLARE NUT, NOT SHOWN)

83

114

96

94 95

82 111 21

112

90
85 89 24
DETAIL U 21
91

SUCTION AND 1ST STAGE

FIGURE 8: SUCTION AND FIRST STAGE PLUMBING DETAIL

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 44

 V

DETAIL V
2ND & 3RD STAGE

21
2X (ELBOW AND O-RING)
2X 18 10 2X 19 23

25 5X (ELB0W
AND O-RING)
24

2X 20

97

92
93 2X 83

19

87

(ELBOW AND O-RING,

25 24
3RD STAGE SUCTION)

88

(PLUG AND O-RING) 21 144

(ADAPTER AND O-RING) 21 107

108

CONNECTS
TO ITEM
24 & 25 85
84
(ELBOW AND O-RING,
2ND STAGE SUCTION PORT,
NOT SHOWN) 86

109 110 197 196 24

(ELBOW AND O-RING)
25

FIGURE 9: SECOND AND THIRD STAGE PLUMBING DETAIL

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 45

 W

DETAIL W
FINAL DISCHARGE
(PARTS REMOVED FOR CLARITY)

98

142

(45 CONNECTOR) 143

104

103

2X (NUT) 198

143 (45 CONNECTOR)

(PLUG) 105

199 102 101 100 99

2X (BOLT AND WASHER)
46

FIGURE 10: FINAL DISCHARGE PLUMBING DETAIL

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 46

 9 2X

18 2X

8X (NUT) 8
20 2X

8X (WASHER) 22 14 2X (WASHER)

2X 10 19 2X

8X 11 23 2X

12

CON ROD ORIENTATION

3 7

4X 22
13
4X 1 6

21

5 2X 17

16

15

FIGURE 11: CRANKCASE ASSEMBLY DETAIL

RIX Industries MAN‐2V3B‐4.1V-P1-N2 Page 47

 9

1 7 2X 8 2X

5
6

2 3
5

2X 4

FIGURE 12: CONNECTING ROD DETAIL

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 48

 11

26 23

(GROMMET BUSHING) 31

14

FIGURE 13: CONTROL BOX ASSEMBLY DETAIL, 1/3

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 49

 1

10

12

FIGURE 14: CONTROL BOX ASSEMBLY DETAIL, 2/3

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 50

 MAIN BOX
(FRONT PANEL REMOVED FOR CLARITY)

16
6X 27

28

13

15

18 24

25

17

GROUNDING 30
LUG 15X 22
2X 33
19 20 3X 21
34 32
2X 29

FIGURE 15: CONTROL BOX ASSEMBLY DETAIL, 3/3

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 51

 FIGURE 16: WIRING SCHEMATIC

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 52

 FIGURE 17: ELECTRICAL SCHEMATIC

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 53

 TABLE 1: WIRING AND ELECTRICAL SCHEMATIC LEGEND

SYM DESCRIPTION QTY

C1 CAPACITOR, FAN/MOTOR 1
KM COIL/CONTACTOR (STARTER) 1
FM FAN/MOTOR 1
QF1 CIRCUIT BREAKER 2 POLE 1
QF2 CIRCUIT BREAKER, 1 POLE 1
Q1 DISCONNECT, FUSIBLE 1
HM HOUR METER 1
SA SELECTOR SWITCH (HAND-OFF-AUTO) 1
HL1 LED INDICATING LIGHT, GREEN (START) 1
HL2 LED INDICATING LIGHT, RED (STOP) 1
M ELECRIC MOTOR 1
SPD PRESS. SWITCH, DISCHARGE 1
SPI PRESS. SWITCH, INLET 1
KA RELAY 1
RTD RESISTIVE TEMPERATURE DEVICE 1
SB2 PUSH BUTTON, START 1
TIS TEMPERATURE SWITCH 1
TC1 TRANSFORMER, 500VA 1
SB1 PUSH-PULL BUTTON, EMERGENCY STOP 1

TABLE 2: CONTROL BOX TRANSFORMER AND OVERLOAD SETPOINTS

MODEL PRIMARY SECONDARY MOTOR WIRING OVERLOAD

TRANSFORMER TRANSFORMER CONFIGURATION SETPOINT
SETTING SETTING
2V3B-4.1V-P1A-N2 H3-H4 X1-X2 LOW VOLTAGE 26
2V3B-4.1V-P1B-N2 H1-H4 X1-X2 HIGH VOLTAGE 13
2V3B-4.1V-P1C-N2 H2-H4 X1-X2 HIGH VOLTAGE 16
2V3B-4.1V-P1E-N2 H2-H4 X1-X2 HIGH VOLTAGE 16

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 54

 FIGURE 18: FLOW SCHEMATIC

RIX Industries MAN-2V3B-4.1V-P1-N2 Page 55

 8 7 6 5 4 3 DWG NO
25622
SH
1
REV
C 1
PROPRIETARY DRAWING CUI//SP-CTI/PROPIN REVISION HISTORY
This drawing and the information and data contained herein are the
confidential and proprietary property of RIX Industries and may not be used,
REV DESCRIPTION DATE APPROVED
copied, reproduced, or disclosed for any purpose, without the written
permission of RIX Industries. B CORRECTED NOMINAL FLOW 22/02/17 AV
C &+$1*('0$;$036 22/0/ AV
NOTES:

1. APPLICABLE STANDARDS/SPECIFICATIONS:
ASME Y14.5-2009, DIMENSIONING AND TOLERANCING

2. SUPPLY GAS:
D PRESSURE: 30 TO 40 PSIG
TEMPERATURE: -15 TO 104 F
D
DEW POINT: -50 F MAXIMUM
CONCENTRATION: 90% PURITY MIN

B 3. COMPRESSOR OUTPUT:
NOMINAL DISCHARGE PRESSURE: 2500 PSIG*
NOMINAL FLOW @ MIN SUCTION: 555 SCFH
NOMINAL FLOW @ MAX SUCTION: 678 SCFH
SFCH @ 14.7 PSIA AND 70 F INLET CONDITIONS

4. CUSTOMER TO PUNCH HOLE AS DESIRED TO RUN MAIN POWER

INTO ELECTRICAL BOX AND LAND POWER ON CONTACTOR POINTS
L1, L2, AND L3 ON THE OVERLOAD RELAY (UNIT SHIPPED WITHOUT
CUSTOMER MAIN POWER HOLE CUT IN ELECTRICAL BOX)

5. INSTALLATION ENVIRONMENT:
LOCATION: INDOORS
AMBIENT TEMPERATURE: 35 TO 104 F
ELEVATION: 4500' MAX DETAIL A
6. APPROMIMATE WEIGHT: 800 LBS SCALE 1:4
7. DUTY CYCLE: CONTINUOUS PRESSURE GAUGES
RELIEF VALVES

LIFT POINT
HEAT EXCHANGER

C C
SUCTION
3/4-14 NPT
L Ø2.00 A B

DISCHARGE
BELTGUARD
1/4-18 NPT
A L Ø2.00 A B

46 MAX
DRIVE OIL FILL
MOTOR BREATHER CAP

29.28

21.91
OIL DRAIN
LINE

B 49 MAX 22 MAX B
24.57 8.41
BELT GUARD REMOVED FOR CLARITY

B
2
6X F .13 A
AVAILABLE MODELS

SUPPLY C
P/N INPUT VOLTAGE
GAS MAX AMPS

2V3B-4.1V-P1A O2 208-230V / 3PH / 60HZ 28A

2V3B-4.1V-P1B O2 460V / 3PH / 60HZ 14A
2V3B-4.1V-P1C O2 380-415V / 3PH / 50HZ 17A
2V3B-4.1V-P1E O2 380-415V / 3PH / 60HZ 17A
3X 16.31
2V3B-4.1V-P1A-N2 N2 208-230V / 3PH / 60HZ 28A
2V3B-4.1V-P1B-N2 N2 460V / 3PH / 60HZ 14A
2V3B-4.1V-P1C-N2 N2 380-415V / 3PH / 50HZ 17A
2V3B-4.1V-P1E-N2 N2 380-415V / 3PH / 60HZ 17A

6X 1.00
INTERFACE DRAWING
2X 14.00 2X 14.00
UNLESS OTHERWISE SPECIFIED CONTRACT/INV. NO.
RIX INDUSTRIES
A 12X R.34 DIMENSIONS ARE IN INCHES
TOLERANCES ARE: 4900 INDUSTRIAL WAY, BENICIA, CA 94510 A
DECIMALS
.X±.1
FRACTIONS±1/16
CAST±1/8 APPROVALS DATE ON SAN FRANCISCO BAY SINCE 1878
.XX±.02 ANGLES±2° TITLE

GENERAL ARRANGEMENT,
.XXX±.005 WELDS±1/32 DRAWN

DO NOT SCALE DRAWING ICB 19/01/17

THIRD ANGLE PROJECTION
2V3B-4.1V PRODUCT FAMILY
CHECKED
AM 19/01/17
B
APPROVED

*DISCHARGE PRESSURE "AS SUPPLIED" MAY VARY BETWEEN 2450 AND ICB 19/01/22
2550 PSIG DUE TO VARIATIONS IN MEASURING EQUIPMENT AND SETUP. SIZE CAGE CODE DWG NO REV

SEE PRODUCT MANUAL FOR ADDITIONAL INFORMATION. D 28953 25622 C

SCALE P/N SHEET
NONE SEE TABLE 1 OF 1

8 7 6 5 4 3 2 1
 O-RING INSTALLATION & MATERIAL INFORMATION

All RIX part numbers for o-rings begin with a 123 prefix. This is followed by a second set
of 3 digits which corresponds to US Standard AS568 sizing.

RIX normally uses a Viton 70 durometer o-ring, in which case the part number will have a
“-5” suffix, such as 123-040-5. In many cases a 90 durometer is used, which is indicated
by an additional “-90” at the end of the part number, such as 123-040-5-90. Viton is
required for oxygen or high temperature service, and 90 durometer is often required in high
temp/ high pressure locations. For materials other than Viton a different suffix is used (see
chart below).

CAUTION: All o-rings used in O2 service must be Viton or Teflon. Buna o-rings are not
oxygen compatible and will sustain combustion, creating a high potential for explosion.

All o-rings, except for those located behind piston rings, should be lubricated with an
appropriate high temperature grease such as Krytox or Christo-Lube MGC-111 before
installation. Apply a thin coating by drawing the o-ring through your fingers. This will
extend the life of the seal and simplify installation.

CAUTION: O-rings used in oxygen service must be lubed with an oxygen compatible
grease (RIX P/N 45-1007, 45-19220 or equivalent).

All o-rings supplied for O2 service have an X prefix, and are oxygen cleaned and bagged to
maintain cleanliness. Never use a non-O2 cleaned part for oxygen service.

Standard o-rings available from hardware stores, etc. are usually Buna type and will fail
when used in high temperature or oxygen applications.

O-RING & BACK-UP RING MATERIALS

RIX PART NO. MATERIAL

O-rings 123-XXX-2, -2S Silicone
123-XXX-3 Teflon
123-XXX-5 Viton
123-XXX-7 Kel-F
123-XXX-9 Kal-Rez, Compound 2037
123-XXX-10 Viton with FDA approval
123-XXX-11 Viton V1289-75, Low temp (-50°F)
123-XXX-12 Parafluor Ultra, FF102-75
X123-XXX-5 Viton (OXYGEN CLEANED)

Back-up Rings 124-XXX-3 Teflon (split)

124-XXX-8 Teflon (solid)

Note: Some –7 o-rings are metal and some –9's are metallic C-rings. But these
P/N's take the form 123-XXXX-7 and –9 (FOUR X'S)

Rev 2-17 A5089K

 INSTRUCTIONS FOR INSTALLING SPIRAL PISTON RINGS
ON FLOATING OR REMOVABLE PISTONS

Refer to applicable piston assembly drawing in manual

Some compression stages use spiral wound compression rings. The pistons may be fixed to the rod and
removable, or floating. To replace the piston rings, remove the head per service manual instructions. With
the flywheel rotated to bring the piston to top dead center, unbolt and lift the cylinder up and over the
piston, or, if directed, pull the piston out of the cylinder.

Inspect the piston for wear and replace if necessary. Replace all piston rings and O-rings. RIX does not
recommend partial replacement of rings.

1. Stretch the O-rings and roll them on one at a time using a seal tool (RIX P/N # 88-5812 or
equivalent). Alternately, roll o-rings onto the outside tapered portion of the sleeve tube provided
with the compressor (See Accessory Parts List for part number). Slide the sleeve tool over the
piston (to the farthest ring groove first) and roll the O-ring into the groove, taking care not to cut
the ring on sharp edge of the piston.

2. Before stretching or uncoiling the spiral piston ring, inspect the ring for cupping or damage. If
cupping is present, the rings should be installed with the bottom of the dish down against the
piston groove land.

3. Gently stretch the piston ring and work it into the groove over the O- ring. Protect the thin ends of
the piston ring with your thumb nail while working the ring down into the groove.

4. Install the top and bottom rider rings, and pressure breakers if required.

5. Slide the piston ring sleeve tool over the assembled piston, using the tapered end of the sleeve tool
to help compress the rings into the groove. (The bottom end of the piston should be inserted into
the tapered end tool, so it ends up on the non-tapered end) Gently work the sleeve tool onto the
piston, taking care not to pull out the thin ends of the piston ring.

6. After the piston has been installed in the compression sleeve tube, slide the piston back out and
examine the spiral rings. Replace any damaged rings. Reinstall in sleeve.

7. When installing pistons into the top of the cylinder, place the squared end of the sleeve over the
cylinder and press the piston into the top of the cylinder bore. The tapped hole (if present) in the
piston should be on top.

Rev F A3534
21/05/26 ICB
 IM10-07

Spectra 10 Series
Pressure Switch
UNITED ELECTRIC
CONTROLS

Installation and Maintenance

Instructions

Please read all instructional literature carefully and thoroughly before starting. Refer to the final page for the listing of Recommended
Practices, Liabilities and Warranties.

GENERAL
BEFORE INSTALLING, CHECK THE SENSOR MODEL SELECTED FOR Optional Surface Mounting Bracket (option M449)
COMPATIBILITY TO THE PROCESS MEDIA IN CONTACT WITH THE SENSOR The surface mounting bracket is a “C” style clamp with a single clearance hole to
AND WETTED PARTS. accommodate a 1/4" screw. Insert the unit into the bracket, pressure connec-
tion end first. Open the adjustment cover and mount the unit so that adjustment
The Spectra-10 pressure switch utilizes a diaphragm or piston sensor to detect a opening will be accessible when the switch is mounted. Close the adjustment cover
pressure change. The response, at a predetermined set point, actuates a SPDT ensuring that the bracket does not interfere with the cover. Failure to do so may result
snap-acting switch, converting a pressure signal into an electrical signal. Control set in improper sealing of adjustment cover. Mount assembly in desired location.
point may be varied by turning the internal slotted adjustment screw bushing accord-
ing to procedures outlined in this document. WIRING
PROOF PRESSURE* LIMITS STATED IN THE LITERATURE AND ON DISCONNECT ALL SUPPLY CIRCUITS BEFORE WIRING UNIT. ELECTRI-
NAMEPLATES MUST NEVER BE EXCEEDED, EVEN BY SURGES IN THE CAL RATINGS STATED IN LITERATURE AND NAMEPLATES MUST NOT
SYSTEM. OCCASIONAL OPERATION OF UNIT UP TO PROOF PRESSURE IS
BE EXCEEDED. OVERLOAD ON A SWITCH CAN CAUSE FAILURE ON THE
ACCEPTABLE (E.G., START-UP, TESTING). CONTINUOUS OPERATION SHOULD NOT
EXCEED THE DISIGNATED OVER RANGE PRESSURE. FIRST CYCLE.
WIRE IN ACCORDANCE WITH LOCAL AND NATIONAL ELECTRICAL CODES.
*Proof Pressure
The maximum pressure to which a pressure sensor may be occasionally subjected,
which causes no permanent damage (e.g., start-up, testing).
Termination Type A, 0.11" push-on terminals
THESE PRODUCTS DO NOT HAVE ANY FIELD REPLACEABLE PARTS. Unit is supplied with male and female terminals. Insert 18-22 AWG stripped lead-
wire into female terminal and crimp using appropriate hand tool. Refer to molded-
in N.O., N.C., and COM designations for proper wiring.
Please refer to product bulletin for product specifications. Product bulletin may be
found at www.ueonline.com Termination Type B, 0.25" push-on terminals
N.O., N.C., and COM terminals require 1/4” female push-on terminals.
Insulated female terminals are recommended for safety. Use non-conductive
protective grease for corrosion resistance in outdoor use.
Part I - Installation
Tools Needed
Termination Type C & D, 18" leads 18 AWG
11/16" Open end wrench Color coding:
Screwdriver for customer- Terminals Color
supplied mounting screws N.O. Blue
(option M449 only) N.C. Black
Com Violet
MOUNTING
TO ATTACH TYPE C TO CONDUIT CONNECTION, HOLD ELECTRICAL CON-
ALWAYS LOCATE UNITS WHERE SHOCK, VIBRATION AND AMBIENT TEMPERATURE NECTION STEADY WITH WRENCH ON HEX, THEN THREAD ON CONDUIT.
FLUCTUATIONS ARE MINIMAL. DO NOT MOUNT IN AMBIENT TEMPERATURE AREAS
EXCEEDING 160° F (WITH BUNA N CONSTRUCTION) OR 180°F (WITH VITON
CONSTRUCTION). IF SEVERE PRESSURE SURGES ARE EXPECTED, CONSIDER THE USE OF A
PRESSURE SNUBBER. Termination Type E, 1/2 NPT with 5’ cord
Cut cord to desired length. Strip back insulation. Color coding:
Terminals Color
MOUNT USING PRESSURE CONNECTION: ALWAYS USE A WRENCH ON PRES- N.O. Red
SURE CONNECTION WRENCH FLATS. UNIT MAY BE MOUNTED IN ANY POSITION. N.C. Black
HOWEVER, IF INSTALLATION LOCATION RESULTS IN FREQUENT EXPOSURE TO Com White
LIQUID, IT IS RECOMMENDED THAT THE UNIT BE MOUNTED VERTICALLY WITH THE PRES-
SURE CONNECTION DOWN. IF UNIT IS TO BE SET AFTER MOUNTING, RAISE ADJUSTMENT
COVER, THEN THREAD IN PRESSURE CONNECTION UNTIL SNUG. VERIFY THAT ADJUSTMENT TO ATTACH TYPE E TO CONDUIT CONNECTION, HOLD ELECTRICAL CON-
OPENING IS ACCESSIBLE. NECTION STEADY WITH WRENCH ON HEX, THEN THREAD IN CONDUIT.

Panel mounting via 1/2" NPT (male) Electrical Connection

Termination Type F, DIN Connector with 4 Male Terminals
(termination type C)
Connector conforms to DIN 43650, Form A. Use a mating DIN connector (female
Mount through 7/8" clearance hole in panel. Hold in place with serrated 1/2" conduit nut.
type, not UE supplied). Coding:
Always support the unit by holding a wrench on the 11/16" hex nearest the conduit connec-
tion. Terminals
Terminal #1 Common
Terminal #2 Normally Closed
Terminal #3 Normally Open
Terminal #4 Not used

Termination Type G, 5’ cord

Cut cord to desired length. Strip back insulation. Color coding:
Terminals Color
N.O. Red
N.C. Black
Com White

IM10-07
A8101 PRESSURE SWITCH SPEC SHEET RIX P/N X76-714, 76-715, 76-716, X76-735
 Part II - Adjustments
Tools Needed
Screwdriver
1. Connect control to pressure source. For setting on rise, apply desired pressure and turn adjustment left until switch actu-
2. With power disconnected, slide cover toward ates (circuit across N.O. and COM terminals closes). For setting on fall, apply pressure
electrical terminations while twisting it to overcome equal to normal system operating pressure. Reduce source pressure to setpoint
friction. value. Turn adjustment right until switch actuates (circuit across N.C. and COM closes).
3. Connect power to terminals or leads. 5. After completing adjustments, slide cover closed over adjustment compartment.
4. Insert screwdriver into adjustment slot and turn left Recheck set point.
to increase setting or right to decrease setting.

Dimensions RECOMMENDED PRACTICES AND WARNINGS

Dimension A Dimension B United Electric Controls Company recommends careful consideration
Diaphragm Piston Model 10-12: 1/8 NPT of the following factors when specifying and installing UE pressure and temper-
Model 13-16: 1/4 NPT ature units. Before installing a unit, the Installation and Maintenance instruc-
Model 10-12 Model 13-16 tions provided with unit must be read and understood.
10-A 3” 3.31” † 6Q CXQKF FCOCIKPI WPKV RTQQH RTGUUWTG CPF OCZKOWO VGORGTCVWTG NKOKVU
76.2 mm 84.1 mm UVCVGFKPNKVGTCVWTGCPFQPPCOGRNCVGUOWUVPGXGTDGGZEGGFGFGXGPD[UWTI-
10-B 3.5” 3.81” GUKPVJGU[UVGO1RGTCVKQPQHVJGWPKVWRVQOCZKOWORTGUUWTGQTVGORGTC-
88.9 mm 96.8 mm ture is acceptable on a limited basis (e.g., start-up, testing) but continuous
QRGTCVKQP OWUV DG TGUVTKEVGF VQ VJG FGUKIPCVGF CFLWUVCDNG TCPIG 'ZEGUUKXG
10-C 4.06” 4.38” E[ENKPICVOCZKOWORTGUUWTGQTVGORGTCVWTGNKOKVUEQWNFTGFWEGUGPUQTNKHG
103.2 mm 111.1 mm
† # DCEMWR WPKV KU PGEGUUCT[ HQT CRRNKECVKQPU YJGTG FCOCIG VQ C RTKOCT[
10-D 3.19” 3.5” WPKVEQWNFGPFCPIGTNKHGNKODQTRTQRGTV[#JKIJQTNQYNKOKVUYKVEJKUPGE-
81.0 mm 88.9 mm essary for applications where a dangerous runaway condition could result.
10-E 3.9” 4.25” † 6JG CFLWUVCDNG TCPIG OWUV DG UGNGEVGF UQ VJCV KPEQTTGEV KPCFXGTVGPV QT
100 mm 108 mm “A” malicious setting at any range point cannot result in an unsafe system
condition.
10-F 4.13” 4.44”
104.8 mm 112.7 mm “B” † +PUVCNN WPKV YJGTG UJQEM XKDTCVKQP CPF CODKGPV VGORGTCVWTG HNWEVWCVKQPU
will not damage unit or affect operation. Orient unit so that moisture does
10-G 3.88” 4.19” not enter the enclosure via the electrical connection. When appropriate, this
98.4 mm 106.4 mm
Type 10-A entry point should be sealed to prevent moisture entry.
† 7PKVOWUVPQVDGCNVGTGFQTOQFKHKGFCHVGTUJKROGPV%QPUWNV7'KHOQFKHK-
cation is necessary.
† /QPKVQT QRGTCVKQP VQ QDUGTXG YCTPKPI UKIPU QH RQUUKDNG FCOCIG VQ WPKV
UWEJCUFTKHVKPUGVRQKPVQTHCWNV[FKURNC[%JGEMWPKVKOOGFKCVGN[
† 2TGXGPVCVKXG OCKPVGPCPEG CPF RGTKQFKE VGUVKPI KU PGEGUUCT[ HQT ETKVKECN
applications where damage could endanger property or personnel.
† (QTCNNCRRNKECVKQPUCHCEVQT[UGVWPKVUJQWNFDGVGUVGFDGHQTGWUG
† 'NGEVTKECN TCVKPIU UVCVGF KP NKVGTCVWTG CPF QP PCOGRNCVG OWUV PQV DG
GZEGGFGF1XGTNQCFQPCUYKVEJECPECWUGFCOCIGGXGPQPVJGHKTUVE[ENG
Wire unit according to local and national electrical codes, using wire size
recommended in installation sheet.
† &QPQVOQWPVWPKVKPCODKGPVVGORGZEGGFKPIRWDNKUJGFNKOKVU

LIMITED WARRANTY
“A” “A” Seller warrants that the product hereby purchased is, upon delivery, free from
FGHGEVUKPOCVGTKCNCPFYQTMOCPUJKRCPFVJCVCP[UWEJRTQFWEVYJKEJKUHQWPF
VQDGFGHGEVKXGKPUWEJYQTMOCPUJKRQTOCVGTKCNYKNNDGTGRCKTGFQTTGRNCEGFD[
“B” 5GNNGT 'ZYQTMU (CEVQT[ 9CVGTVQYP /CUUCEJWUGVVU +0%16'4/5  RTQXKFGF
however, that this warranty applies only to equipment found to be so defective
Type 10-B Type 10-C within a period of 24 months from the date of manufacture by the Seller. Seller
UJCNN PQV DG QDNKICVGF WPFGT VJKU YCTTCPV[ HQT CNNGIGF FGHGEVU YJKEJ GZCOKPC-
tion discloses are due to tampering, misuse, neglect, improper storage, and in
any case where products are disassembled by anyone other than authorized
5GNNGT¶U TGRTGUGPVCVKXGU ':%'26 (14 6*' .+/+6'& 9#44#06; 1( 4'2#+4
#0& 4'2.#%'/'06 56#6'& #$18' 5'..'4 &+5%.#+/5 #.. 9#44#06+'5
9*#651'8'4 9+6* 4'52'%6 61 6*' 241&7%6 +0%.7&+0) #.. +/2.+'&
9#44#06+'5 1( /'4%*#06#$+.+6 ; 14 (+60'55 (14 #0; 2#46+%7.#4
274215'
LIMITATION OF SELLER’S LIABILITY
Seller’s liability to Buyer for any loss or claim, including liability incurred in
EQPPGEVKQP YKVJ K  DTGCEJ QH CP[ YCTTCPV[ YJCVUQGXGT GZRTGUUGF QT KORNKGF
(ii) a breach of contract, (iii) a negligent act or acts (or negligent failure to
“A” act) committed by Seller, or (iv) an act for which strict liability will be inputted
“A” to seller, is limited to the “limited warranty” of repair and/or replacement as
so stated in our warranty of product. In no event shall the Seller be liable for
“B” CP[ URGEKCN KPFKTGEV EQPUGSWGPVKCN QT QVJGT FCOCIGU QH C NKMG IGPGTCN PCVWTG
KPENWFKPIYKVJQWVNKOKVCVKQPNQUUQHRTQHKVUQTRTQFWEVKQPQTNQUUQTGZRGPUGUQH
“B”
Type 10-D Type 10-E any nature incurred by the buyer or any third party.
UE specifications subject to change without notice.

UNITED ELECTRIC
“A” “A”
CONTROLS
“B”
180 Dexter Avenue, P.O. Box 9143
Watertown, MA 02471-9143 USA
“B” Telephone: 617 926-1000 Fax: 617 926-2568
http://www.ueonline.com
A8101 PRESSURE SWITCH SPEC SHEET RIX P/N X76-714, 76-715, 76-716, X76-735
Type 10-FType 10-G
IM10-07
CP110825K
5,;31;':*$
5,;31;':*$
 Durant/Eaton Temperature Controller Quick Guide
Rix P/N: 76-12579
Drawing A11346 Rev B

Table of Contents

Description Page
Keypad Operation 2

Unlock Screen 3

Controller Set up & Set Point Adjustment 4

Procedure For Checking Switch Output 5

A11346 PAGE 1 OF 5
 Keypad Operation

Scroll Key:
This key is used to select a parameter to be viewed or adjusted.

Up Key:
This key is used to increase the value of selected parameter.

Down Key:
This key is used to decrease the value of selected parameter.

Reset Key: Press

This key is used to:
1. Revert the display to the process value or set point value.
2. Reset the latching alarm, once the alarm condition is removed.
3. Enter the manual control menu when failure occurs.

Enter Key: Press for a minimum of 5 seconds.

Press for 5 seconds to:
1. Enter setup menu. The display shows

A11346 PAGE 2 OF 5
 Unlock Screen
(Screen must be unlocked prior to adjusting set point)

-Press & simultaneously and release, the actual temperature will be displayed on the screen.

-Press for 5 seconds to:

1. Enter setup menu. The display shows

2. Release this button.
3. Press again and it will display “Lock” on the screen.

4. Press or until it displays “none” on the screen.

-Press & simultaneously and release, the actual temperature will be displayed on the screen.

-Press to see SP1 on display.

-Press or to change the temperature setting.

Follow directions in document A11346 to lock the screen to prevent accidental change of settings.

A11346 PAGE 3 OF 5
 Controller Set up & Set point Adjustment

-Power up and wait until the ambient temperature is displayed.

-Hold until is displayed.
-Release button.
-Press 2 times to display INPT. This parameter is for adjusting input sensor type.
-Press one time to display Pt.dn.
-Press once to return to INPT display.
-Press once todisplayUNIT. This parameter is for adjusting units of measurement. The 2V3
generally displays in Degrees F.
-Press once to display°F
-Press once to return to UNIT (Units can be changed to Celsius if desired).
-Press once to display dP. This parameter is for adjusting the amount of decimal digits.
-Press once to display No dP.
-Press once to return to dP.
-Press six times to display Pb. This parameter is for adjusting the proportional band value.
-Press until 0.0 is displayed.
-Press to return to Pb.
-Press once to display out1. This parameter is for adjusting Output 1 function.
-Press twice to display dirt.
-Press once to return to out1.
-Press once to return to o1.ty. This parameter is for adjusting Output 1 signal type.
-Press to display RELY.
-Press once to return to o1.ty
-Press and hold until CAL1 is displayed.-Press two times until SP1 is displayed.
-Press and hold until desired set point is displayed. Default is 400.
-Press and hold until Set is displayed.
-Press one time to display Lock.
-Press four times to display ALL.
-Press for ten seconds. Ambient temperature will be displayed.

A11346 PAGE 4 OF 5
 Procedure For Checking Switch Output
-Verify Output 1 is open. Verify there’s an open connection between terminals 5 and 6.
-Press until the display shows SP1.
-Press or until the set point is below ambient temperatures.
-Press to return to the main display page.
-Output 1 will change status. Output 1 will close. Verify continuity between terminals 5 and 6.
WARNING: When voltage is applied, potential shock can occur. Instead, verify operation using a
voltmeter. Test for voltage on terminals 5 and 6.
If the temperature controller is attached to the control box, the red fault light will illuminate.
-Press until the display shows SP1.
-Press or until the desired temperature set point has been reached.
-Press to return to the main display page.

A11346 PAGE 5 OF 5
 
  
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