Van Steenburgh
Refrigerant Reclaim System
CV Series
Operations Manual
Contents
Introduction
Purpose 3
General 3
Series CV 4-7
Operation Recap 8
Getting Started
Set up Procedures 9
Operating Characteristics 10
Hints 11
Operation
Refrigerant In 13
Pass Through Operation 14
Pass Through with Chill 14
Pumping to Required Vacuums 15
Chiller 16
Drier/Filter 17
Non Condensable Purge Procedure 17
Refrigerant Out 18
Oil Out 19
Changing Refrigerants 20
Maintenance 21
Adding Oil 22
Changing Drier/Filter 22
Trouble Shooting 24
Parts List 26
Specifications 27
ARI-740 Test Results 28
Flow Chart 29
Wiring Diagram 30
Van Steenburgh
Engineering Laboratories, Inc.
1825 No. Lake Ave.
Estes Park, CO 80517
Ph 970/586-8412•Fax 970/586-8060
02/20/03
2
Introduction
Purpose
The Van Steenburgh Refrigerant Reclaim System is used to reclaim R-12,
R-22, R-502 and R-500 and all alternate refrigerants in the same range from
a refrigeration or air conditioning system. It can also be used to remove or
transfer refrigerant from cylinders or systems and to store refrigerant within
it’s storage/chill chamber.
General
The Van Steenburgh Refrigerant Reclaim System is a fully integrated piece
of equipment. All necessary elements are self-contained including the
storage/chill chamber which is a specially engineered pressure vessel welded
in place.
The system is designed and constructed of top quality steel cabinetry and
finished with bonded epoxy paint. All component parts are of the highest
quality including all gauges, solenoids, valves, controls and switches. All
parts are available from the manufacturer (see Parts List).
The equipment is designed with the technician and work place in mind. The
gauges are laboratory quality to assure long life and excellent calibration.
Switches are clearly marked and easily accessible on the front control panel.
Your Van Steenburgh system has been ruggedly constructed with your day-
to-day activities in mind. All refrigerant carrying tubing is insulated to aid
in efficient operation and the cabinet and frame are reinforced for sturdiness.
3
4
5
6
7
Operation Recap
1. Refrigerant can be taken into the system as EITHER vapor or liquid.
2. It is taken to high temperature and high velocity using the heat of
compression and the heat from the compressor discharge.
3. It then enters a large unique Separation Chamber where the velocity is
reduced to near zero. During this phase, copper chips, carbon, oil,
acid, water and all other contaminants drop to the bottom of the
Chamber where they can be removed during the “oil out” operation.
(this process also allows you to accurately determine the amount of oil
removed from a reclaimed system since all of it remains in the bottom
of the Separation Chamber).
4. The distilled vapor, at high temperature, rises and passes from the
Separation Chamber to the compressor, the tube in tube Heat
Exchanger, then to the air cooled condenser where it is converted to
liquid
5. The liquid passes into the on-board storage chamber. Within this
chamber an evaporator assembly including thermal expansion valves
that correspond to the type of refrigerant sub-cools the liquid to 20 to
40 degrees F / -6.7 to 4.4 degrees C (depending on several variables)
during the CHILL operation.
6. A pair of replaceable Filter/Driers in this circuit removes any
remaining moisture while finalizing the cleaning process.
7. Chilling the refrigerant also facilitates the transfer of the refrigerant to
any external cylinders or systems at ambient temperature.
NOTE: It is best NOT to over chill the refrigerant in the system. Over
chilling can cause frost, or even ice, to form on the valves and chambers,
especially in higher humidity areas. As it melts, it leaves water within
the unit, which can gather on the floor of the cabinet causing problems.
8
Getting Started
Set Up Procedures
Each system is thoroughly tested before it leaves the factory. At the
completion of the test procedure each unit is pressurized with nitrogen to
protect it during shipping. Your unit will have a tag on the front indicating
this.
1. Remove unit from shipping crate. Make a thorough visual inspection
of the unit making sure there is no shipping damage. If any damage is
noted, contact the shipping company.
2. Verify voltage and amperage on serial tag on rear of unit.
3. Open the INLET and OUTLET valves (with unit plugged into proper
voltage), this will release the nitrogen holding charge. Hook vacuum
pump to both REFRIGERANT INLET and REFRIGERANT
OUTLET fittings. Pull a vacuum until system reaches 1000 microns.
4. Check Suction Gauge to ascertain vacuum level. Close both the Inlet
and Outlet Valves.
You are now ready to accept refrigerant. MAKE CERTAIN THE
REFRIGERANT SELECTOR KNOB INDICATES THE
APPROPRIATE REFRIGERANT. Refer to Refrigerant In procedure for
instructions.
9
Operating Characteristics
The individual sections in this Operator’s Manual deal with the step by step
actions for the operating procedures. The following operating characteristics
apply in general and should be taken into consideration.
1. ALL Van Steenburgh Reclaim Systems are industrial grade
equipment. They are based on established sound heat transfer
principles and depend, to an extent, on the refrigerant in the reclaim
system to achieve maximum performance. Consequently, you will
achieve the best results if you follow some basic procedures.
A. Before starting to reclaim refrigerant from a source, pull 3 to 5
lbs / 1.36 to 2.2 kg of the same refrigerant as you are preparing
to reclaim into the machine from a cylinder. Leave that
amount in the Reclaimer for the next and subsequent uses.
B. Before starting reclaiming operations, turn compressor switch
ON (if not already on) and chiller switch ON prior to starting.
Let machine run for approximately 5 or 10 minutes. This will
warm up the compressor and assure maximum efficiency in the
Separation Chamber.
This simple warm up activity will help considerably towards
assuring smooth operation and clean refrigerant because the heat
exchanger will be up to temperature and this will assure good
“separation” as the refrigerant enters the separation chamber.
2. The OIL OUT operation is especially important for trouble free
operation. By conducting frequent OIL OUT procedures, you will
keep the separated oil below the level of the chamber’s entry port and
assure that the oil/moisture mix will not start foaming and re-entrain
with the vapors.
NOTE: Avoid using Extension Cord. It may overheat. If necessary to
use cord, use shortest possible length of No. 12 AWG minimum.
10
Hints
Long Hose “Pulls”
On occasion, longer lengths of hose are required when it is not possible to
get the Reclaimer to the source. In these cases it is important to remember
the following:
A. Always use the largest diameter refrigerant hose possible – at least a
3/8”/.952 cm.
B. The line loss will begin to have a more noticeable effect after 25
feet/7.62 meters
C. At 50 feet/15.2 meters (75degrees / 23.9 degrees C) the liquid
capacity will be reduced by 20 percent. The vapor capacity, however,
will be diminished by 67 percent!
D. Pumping capacity will diminish drastically as hose lengths exceed 50
feet.
Low Ambient Operations
The Reclaimer is no different from any other piece of equipment that
depends on a compressor. The lower the ambient, the more important it is to
assure the compressor is warm enough.
Here are some hints:
A. Don’t leave Reclaimer in a service truck overnight during cold
weather. Leave it at a warm location.
B. Low ambient temperatures will mean longer “pull” times. Hooking
into liquid side is even more important during these conditions.
Transferring Refrigerant
Transferring sub-cooled refrigerant from the reclaimer following the chiller
process is aided by a combination of things:
A. The sub-cooled refrigerant entering a cylinder or system at a higher
ambient condenses the vapor and lowers the pressure.
11
B. The Reclaimer compressor, operating at much higher
temperature and pressure, is driving the sub-cooled refrigerant
from behind.
Care of Reclaimer
If refrigerant is stored in Reclaimer during periods of non use, it is
imperative that unit remains connected to power source with compressor
switch in the on position. Should any refrigerant migrate to the compressor,
the unit will start and pump down with the low pressure control shutting the
system down at approximately “0” psig/bar. This will also provide power to
the crankcase heater, which maintains the compressor oil at a constant
temperature, thus boiling any refrigerant out of the compressor oil. This will
assure a smooth start up when beginning reclaim operations.
Caution: Failure to follow these instructions may cause serious
compressor damage and void the warranty.
12
Operation
Refrigerant In
1. Attach hose to the ¼” flare fitting labeled INLET.
2. Attach the other end of the hose to the refrigerant source. Purge hose.
Use a gauge at reclaiming source. This will show when the source is
empty.
NOTE: HOOK UP TO LIQUID SIDE WHENEVER POSSIBLE.
Removing liquid first is much faster. It also serves to cool the motor compressor in the
reclaimer. Other reasons to hook to liquid side:
A. Drawing from vapor side means you will be boiling the liquid
without a heat source, which will drastically reduce the efficiency
of the operation.
B. If there is refrigerant in the oil of the source compressor, it will
cause oil to leave and enter the Reclaimer.
3. Turn the COMPRESSOR switch ON and open INLET hand valve.
Reclaimer will start to pump.
NOTE: With the VAPOR switch also on, the liquid injection solenoid will
activate when suction pressure gets down to approximately 3 to 4 psig/.204
to .272 bar. By diverting liquid refrigerant from the on board storage to the
compressor by means of a liquid injection valve the compressor is kept cool
as you continue to pump the remaining vapor from the source. (SEE
PUMPING TO REQUIRED VACUUMS)
4. An Electric Float Switch shuts off an inlet solenoid when machine is
full to prevent overfilling the on-board cylinder. The Float switch is
so placed to leave room for expansion of refrigerants at high ambients.
13
Pass Through Operation
1. Attach a hose to the source to be reclaimed. Attach other end to the
Reclaimer fitting labeled INLET. (See Refrigerant In for hints.) Purge
hose.
2. Attach hose to reclaimer fitting labeled OUTLET. Attach other end
of this hose to the VAPOR side of the storage cylinder to which you
wish to transfer. Purge hose.
3. With COMPRESSOR switch ON, open both INLET and OUTLET
valves. Refrigerant will pass through reclaimer and go directly to the
receiving container hooked to the OUTLET fitting.
Pass Through with Chill
This procedure will afford the opportunity to achieve additional chilling
while also circulating the refrigerant through the drier/filter as it goes
through the reclaimer. This procedure will be slightly slower but will give
you the benefit of chilling.
1. Attach a hose to the LIQUID side of the source to be reclaimed.
2. Open the inlet by turning the inlet valve ON. Pull in the refrigerant
until the reclaimer full light goes on and the reclaimer is full.
3. Close the INLET and turn CHILL switch ON. Let reclaimer run
the chill mode for 15 to 20 minutes.
4. Hook hose from OUTLET of reclaimer to the VAPOR side of the
storage cylinder or system. Purge hose.
5. Open OUTLET of reclaimer. Let refrigerant pass to cylinder.
6. Turn ON compressor and INLET after full light goes off and a
small amount of refrigerant has passed to storage cylinder.
7. Adjust INLET and OUTLET to an even flow.
8. Continue pass through operation until suction pressure drops
indicating vapor is being pumped from source.
14
9. Close OUTLET and complete operation per PUMPING TO
REQUIRED VACUUM to bring source into compliance with vacuum
level.
10. Chill remaining refrigerant and transfer to cylinder using standard
REFRIGERANT OUT procedure.
Pumping To Required Vacuums
As the reclaimer continues to pump, and you reach the vapor stage of the
source charge, the suction pressure will drop. With the VAPOR switch ON,
the liquid injection valve will open at approximately 3 psig. This cools the
compressor during low mass flow operations as it continues to draw the
source down.
To pump the last pounds and take the source to the required EPA vacuum
levels, proceed as follows:
1. When both gauges (source and reclaimer suction) are equal (about
3 psig) turn the VAPOR switch OFF.
2. The low pressure control will control the compressor and the
reclaimer will pump down and shut off.
3. Wait until the two gauges (source and reclaimer suction) equalize.
Note: Be certain all refrigerant is accounted for in source (from
remote condensers, multiple evaporators, etc.). This may take
some extra time. Overriding compressor prematurely may cause
overheating.
4. While watching the source gauge, push the COMPRESSOR
OVERRIDE SWITH (on the right side of the control panel) down
and hold.
5. Watch source gauge until it reaches the required vacuum level per
the following chart.
15
Type Inches Hg Bar
HCFC-22, less than 200 lb. Of refrigerant 0 0
HCFC-22, more than 200 lb. Of refrigerant 10 .33
Other high pressure units normally containing
less than 200 lb. 10 .33
Other high pressure units normally containing
more than 200 lb. 15 .49
Chiller
After Refrigerant in operation has been completed, remove hose and cap
inlet fitting with supplied caps. Turn CHILLER switch and COMPRESSOR
switch ON and allow reclaim system to operate for a minimum of 0.4 hours
as indicated by the hour meter or, if possible, up to 0.5 hours.
This operation circulates the on-board reclaimed refrigerant through an
evaporative cooler and Drier/Filter at approximately 200-300 lbs./90.9-
136.36 kg per hr. rate. This will provide a final cleaning of any microscopic
particles and remove any remaining moisture.
NOTE: Chill time is based on a full unit.
If you choose to store the refrigerant in the reclaimer, turn switches OFF
except COMPRESSOR, close hand valves securely and leave the refrigerant
in the chill chambers. This will allow the system to pump down if any
refrigerant inadvertently migrates to the compressor. See Care of Reclaimer
on Page 12
NOTE: Before removing refrigerant it is recommended that you re-chill
before beginning REFRIGERANT OUT process. (See Refrigerant Out for
explanation).
16
Drier/Filter
NOTE: A moisture indicator sight glass is provided in series BETWEEN
the two Drier/Filter “towers” as an additional monitor. This can be used in
conjunction with the hour meter to monitor the reclaimed product.
For best results the Drier/Filter should be changed after each 3 hours of
chilling operation.
Non condensable Purge Procedure
After refrigerant recovery from source AND BEFORE CHILLING allow the
reclaimer to pump down and the Compressor to shut off.
1. Wait a minimum of 5 minutes for system temperature to stabilize.
2. Observe and note temperature reading on temperature gauge located on
front panel.
3. Refer to temperature/pressure chart (calculated to your elevation above
sea level) and determine saturation level.
4. Compare Head Pressure Gauge reading with pressure reading from the
chart.
5. If Head Pressure is more than 10 psi/.68 bar above reading on chart,
purging is necessary.
6. Using AIR OUT switch on front panel, purge for 15 seconds.
7. Wait 3 minutes and make comparison (4 above) again.
Repeat steps 5, 6 & 7 until temperature and pressure on chart agree
within 10 psi/.68 bar of pressure shown on Head Pressure Gauge.
17
Refrigerant Out
After the CHILL operation has been completed and the refrigerant is
thoroughly chilled, proceed as follows:
1. Attach hose to the fitting labeled OUTLET. Attach the other end of the
hose to the vapor side of a storage cylinder or system you wish to transfer
to. Purge the hose.
2. With COMPRESSOR ON open the OUTLET hand valve. The
refrigerant will begin transferring. Leave CHILL switch ON until
bubbles appear in the outlet sight glass then turn CHILL switch OFF.
NOTE: It is important that the refrigerant is chilled prior to beginning this
procedure. This facilitates the transfer because the sub-cooled refrigerant
will immediately condense the vapor in the cylinder or system, lower the
pressure and cause the refrigerant to pump over. (See Trouble Shooting
section for additional hints in transferring).
NOTE: ONLY AN EXPERIENCED OPERATOR SHOULD
DISPENSE REFRIGERANT. It is extremely important to understand
thoroughly the expansion/contraction properties of refrigerant.
DO NOT OVERFILL. Fill only to 75% to 89% capacity. LEAVE
ROOM FOR EXPANSION.
DO NOT USE DISPOSABLE REFRIGERANT CYLINDERS. This is
extremely dangerous and could result in serious bodily harm or even
death. Use only refillable containers.
KNOW YOUR EMPTY WEIGHTS AND FULL WEIGHTS FROM
THE CYLINDER MANUFACTURER BEFORE BEGINNING THIS
OPERATION.
18
Oil Out
For best results drain oil from Separation Chamber after every 0.16 hours of
operation. This will keep oil level down in the Chamber and prevent it from
re-entering into the reclaimed refrigerant.
To remove the separated oil and other contaminants from the Separation
Chamber, proceed as follows:
1. With Refrigerant IN and Refrigerant OUT both closed and with
Compressor ON, allow unit to pump down and shut off. Turn
Compressor OFF.
2. Using Compressor override switch located on the right side of panel, pull
suction pressure into a 2 to 4 inch vacuum. Let unit sit 3 minutes.
3. Using Chiller switch, pop switch up a few times to put 3 to 4 lbs. pressure
on Suction Pressure Gauge.
4. Connect the OIL OUT access valve which is supplied with the unit to the
OIL OUT flare at the back of the reclaimer.
5. Assure that the knob on the access valve is turned OUT or
counterclockwise.
6. Place a container in front of the OIL OUT fitting to catch the oil. A
Pyrex glass container with graduations works especially well because
you can determine accurately the amount of oil removed.
7. Turn the access valve SLOWLY clockwise while the oil begins to flow.
When it stops flowing, vapor will appear.
8. Turn valve OFF counterclockwise.
NOTE: If the refrigerant source has been a system with a “dead”
compressor or a compressor which has not been running prior to
reclaiming, you can, with this process, determine how much oil to replace in
the evacuated system.
19
Changing Refrigerants
To change from one refrigerant type to another, proceed as follows:
1. With compressor ON and all other switches and valves in neutral or
OFF, turn CHILL switch ON and complete CHILL operation.
2. Pump all refrigerant in Storage/Chill Chamber into available storage
cylinder. (See Refrigerant Out).
3. At the completion of the REFRIGERANT OUT operation there will be
a very small amount of refrigerant (priming charge) left. To remove this,
hook to a cylinder, on which a deep vacuum has been pulled, to the
REFRIGERANT OUT valve and open the valve. Remaining refrigerant
will transfer to the cylinder.
4. Hook vacuum pump to both INLET and OUTLET fittings using “Y”
hook up. All switches ON except compressor and both hand valves
open.
5. Evacuate reclaimer. It is only necessary to run vacuum pump for
approximately 4 to 6 minutes to clear reclaimer. It is NOT necessary
to change the Drier/Filter.
6. Set selector knob on front panel to desired refrigerant.
7. Hook-up to new reclaiming source with different refrigerant matching
the Selector Knob. Open ALL switches and hand valves and allow a
positive pressure to appear on gauges. System is now ready to accept
refrigerant.
8. Begin REFRIGERANT IN operation as outlined in Refrigerant In
Operation.
20
Maintenance
Complete the following preventive maintenance on a regularly scheduled
basis.
1. Wipe front panels including gauge faces with a clean cloth to keep switch
labels and gauge faces clear and readable.
2. Clean and check vent areas on side of machine to assure maximum air
flow over condenser.
3. Check Oil Sight Glass on compressor. This visual check must be made
with 0 PSIG indicating on the SUCTION gauge. If oil is needed, replace
with R-22 hermetic compressor oil (SG-150 or equivalent) or Mobil Artic
EAL 22 (POE) depending on refrigerant. Oil should be visible in the
Level of the sight glass.
21
Adding Oil To Compressor
1. Locate the Access Valve fitting in the compressor suction line.
2. Install the supplied Access Valve to this fitting.
3. Hold momentary compressor switch (right hand side) down until a
small vacuum is indicated on SUCTION GAUGE (VAPOR switch
must be OFF).
4. Suck oil into compressor suction line using Access tool. Watch sight
glass for level. Proper level is indicated when oil is visible in the
LOWER LEVEL of sight glass. DO NOT OVERFILL.
Changing the Drier/Filter
NOTE: Drier/filter assembly is located on the rear panel of the unit. It
consists of two 24” “towers” hooked in series.
1. Turn the compressor and chill switches ON.
2. CLOSE the ball valve at the bottom of the filter and turn chiller
switch on. Allow the unit to pump down and shut off. TURN
COMPRESSOR AND CHILL SWITCHES OFF.
3. Loosen 3/8” Flare nuts on the top of filters and remove sight glass
assembly.
4. Using a 1 3/8” wrench, loosen and remove filters from lower fittings.
DO NOT LOOSEN ELBOWS OR VALVE FITTINGS.
5. Loosen retainer clamps on filters. Remove expended filters.
6. Replace filters. NOTE PROPER FLOW DIRECTION.
7. Reattach and secure top fitting.
8. Reattach and secure filters to lower fittings.
9. Open ball valve at bottom and CHECK FOR LEAKS.
22
10. Turn compressor and chill switches ON. Run in the chill mode for
approx. 5 minutes before returning to operation.
23
TROUBLESHOOTING
Problem Solution
Unit won’t accept 1. Check to assure INLET hand valve is open.
Refrigerant
2. Check operation of FLOAT VALVE SAFETY
SWITCH.
3. Unit is plugged in.
System “pulls slowly” 1. Check to assure you are hooked in to liquid
side of source.
2. Low ambient temperature. Apply heat to
source.
3. Check hoses for detents, small orifices etc.
4. Connecting hose to source too long.
5. Filters need to be changed.
Refrigerant won’t 1. Run in CHILL mode for minimum of 10
Transfer minutes (See Chiller) before starting
Operation.
2. Reclaim system doesn’t have enough refrigerant
in it.
HINT: Hook hose from INLET to vapor
side of Cylinder. Run Reclaimer for a
period of time pulling on vapor side of
cylinder. This will cool the cylinder and
lower the head pressure. Re-hook OUTLET
to vapor side of cylinder and pump.
Not sure which Place thermometer on top of machine overnight
refrigerant is in the to record ambient temperature. Check
24
machine pressure on Head Pressure Gauge and consult your
TEMPERATURE PRESSURE CHART.
Oil in lines OIL OUT operation has not been completed on a
Regular basis. Separator chamber is full and oil
has migrated through system.
Complete OIL OUT operation and run several
loads through machine to clean system.
Unit “Short Cycles” Not enough refrigerant in machine.
25
Parts List/CV Series
Number Description
16-007 Air Condenser
09-119 Air Out/Compressor Momentary Switch
09-079 Capacitor Assembly
24-003 Casters – no brakes
24-004 Casters – with brakes
09-036 Chiller Toggle Switch
15-075 Compressor-115V, 60Hz, 1Ph, 1Hp (Copeland)
15-077 Compressor-208V, 60Hz, 1 Ph, 1Hp (Copeland)
15-076 Compressor-220/240V, 50Hz, 1 Ph, 1 Hp (Copeland)
22-002 Compressor Oil Sight Glass
09-118 Compressor On/Off Toggle Switch
09-136 Crankcase Heater – 115V
26-001 Drier Filter Tower (each)
12-019 Expansion Valve – R-12/R-134a
12-021 Expansion Valve – R-22/R-407c
12-018 Expansion Valve – R-500
12-020 Expansion Valve – R-502/R-404A
09-053 Fan Motor – 230V
09-100 Fan Motor – 115V
22-004 Float Switch Assembly
09-113 Full Light
10-004 Head Pressure Gauge
17-003 High Pressure Control
12-008 High Pressure Relief Valve
09-155 Hour Meter
12-034 Liquid Injection Valve
17-002 Low Pressure Control
22-007 Moisture Indicator (Filter Assembly)
12-005 Oil Access Valve
16-008 Oil Separator
12-035 Refrigerant In/Out Ball Valve (1/4”)
09-058 Refrigerant Selector Knob
09-031 Refrigerant Selector Switch Assembly
22-001 Refrigerant Sight Glass
12-009 Solenoid
12-032 Solenoid, Air Out (XVF)
12-010 Solenoid Coil – 120V
12-026 Solenoid Coil – 230V
10-003 Suction Pressure Gauge
10-005 Temperature Gauge
09-036 Vapor/Oil Out Toggle Switch
26
Specifications
Series CV
Dimensions
W - 28 in. / 71.1 cm
D - 24 in. / 61.0 cm
H - 45 in. / 114.3 cm
Weight
223 lbs. / 101kg (approx.)
Compressor
One horsepower Hermetic
Refrigerants
R-12, R-134a, R-401B, R-401A,
R-409A, R-22, R-407C, R-410A,
R-410B, R-411A, R-411B, R-502,
R-404A, R-402A, R-402B, R-408A,
R-500, R412A . . . and more
Reclaim Capacity
3 lbs. / 1.4 kg liquid per minute
vapor slightly less
Electrical
115/120, 60Hz, 1Ph
Alternate Voltage available upon request
International Voltage available upon request
Storage Capacity
15 lbs. / 7 kg
Pressure Gauges
laboratory quality
In/Out Valves
1/4in. / 6.3 mm SAE male flares
Casters
3 in. / 7.6 cm heavy duty ball bearing
10 in. / 25.4 cm wheels on back
27
CV-15A Design certified by Underwriters Laboratories, Inc.
In accordance with ARI-740 1993 for the tabulated characteristics.
Refrigerants
ARI-740 1993 Characteristics 12 22 134a 500 502
Vapor Refrigerant Recovery Rate (VRR) 1.0 1.0 1.2 1.2 1.4
Liquid Refrigerant Recovery Rate (LRR) 2.3 1.7 2.2 1.4 1.9
Final Recovery Vacuum (FRV)-in Hg. 15 15 15 15 15
Recycle Rate (RR) .95 .95 1.29 .95 1.29
________________________________________________________________
Refrigerants
ARI-740 1993 Contaminant Levels 12 22 134a 500 502
Moisture Content-ppm 3.6 13.1 7.0 3.6 6.5
Chloride Ions Pass Pass Pass Pass Pass
Acidity-ppm <0.1 0.03 <0.1 <0.1 <0.1
High Boiling Residue-% by Volume 0.005 1.008 <.01 0.005 0.005
Particulates/Solid Pass Pass Pass Pass Pass
Non Condensables-% By Volume 0.1 0.29 <.05 0.28 0.18
UL 1963 Purge Loss/Non Condensables – less than 5% by weight
28
29
L1 N G
Crankcase Heater
Fan
23
Low Pressure
Compressor High Pressure Control
Switch Control 3
4
22
Terminal Board
F
Protector 1
Compressor 18
20 Amp C C
Fuse Black Black
2
5 S
S R
F
22
Yellow
R
Compressor/ Red
Air Out
Start
Capacitor
Relay
16
Blue S L
Red
N
Blue
20
Run
Air Out Capacitor
A Solenoid
Vapor Switch
Vapor Solenoid
V
9
TXV Solenoids
21 R-12/R-134a
Rotary
Switch R-22
Chill Switch
R-502
R-500
Full Light Hour Meter
16 19
Refrigerant In
Solenoid
19
FLOAT SWITCH
30
