Manual No.

'16•SRK-T-192

RESIDENTIAL AIR-CONDITIONING
TECHNICAL MANUAL & PARTS LIST

INVERTER WALL MOUNTED TYPE

RESIDENTIAL AIR-CONDITIONER
(Split system, air cooled cooling only type)
SRK18YLV-S1

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 TECHNICAL MANUAL

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h
t
43,5

'16 • SRK-T-192

CONTENTS

1. SPECIFICATIONS ........................................................................................ 3
2. EXTERIOR DIMENSIONS ............................................................................ 4
(1) Indoor unit ............................................................................................ 4
(2) Outdoor unit ......................................................................................... 5
(3) Wireless remote control ........................................................................ 6
3. ELECTRICAL WIRING ................................................................................... 7
(1) Indoor unit .............................................................................................. 7
(2) Outdoor unit ........................................................................................... 8
4. PIPING SYSTEM ........................................................................................... 9
5. RANGE OF USAGE & LIMITATIONS .......................................................... 10
6. APPLICATION DATA .................................................................................. 12
7. OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER ............... 21
(1) Operation control function by remote control ....................................... 21
(2) Unit ON/OFF button ........................................................................... 22
(3) Auto restart function ......................................................................... 22
(4) Custom cord switching procedure ....................................................... 22
(5) Flap and louver control ...................................................................... 23
(6) 3D auto operation .............................................................................. 24



5JNFS
PQFSBUJPO .................................................................................. 25
(8) Installation location setting .................................................................. 25



0VUMJOF
PG
DPPMJOH
PQFSBUJPO
............................................................... 26



0VUMJOF
PG
EFIVNJEJGZJOH
%3:
PQFSBUJPO ........................................... 26
(11) Outline of automatic operation ........................................................... 27
(12) Protective control function ................................................................... 28
8. MAINTENANCE DATA .................................................................................. 30
(1) Cautions ............................................................................................. 30
(2) Items to check before troubleshooting ................................................. 30



5SPVCMFTIPPUJOH
QSPDFEVSF
*G
UIF
BJSDPOEJUJPOFS
EPFT
OPU
SVO
BU
BMM ........ 30



5SPVCMFTIPPUJOH
QSPDFEVSF
*G
UIF
BJSDPOEJUJPOFS
SVOT ..................... 31



4FMGEJBHOPTJT
UBCMF ............................................................................. 32



4FSWJDF
NPEF
5SPVCMF
NPEF
BDDFTT
GVODUJPO ................................... 33
(7) Inspection procedures corresponding to detail of trouble .................... 41

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 g s 32+ 4 

'16 • SRK-T-192

 Phenomenon observed after shortcircuit, wire breakage on sensor  

(9) Checking the indoor electrical equipment  
(10) How to make sure of wireless remote control  
(11) Outdoor unit inspection points  

■How to read the model name

Example: SRK 18 Y LV-S1

Series code
Inverter type
Product capacity
Model name SRK : Wall mounted type
SRC : Outdoor unit

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 '16 • SRK-T-192

1. SPECIFICATIONS Adapted to RoHS directive

Model SRK18YLV-S1
Item Indoor unit SRK18YLV-S1 Outdoor unit SRC18YLV-S1
Cooling capacity (1) W 5000 (1600 (Min.)~5500 (Max.))
Power source 1 Phase, 220-240V, 50Hz
Power
Cooling kW 1.56 (0.40~2.20)
consumption
Running
Cooling 7.5
Operation current A
data Inrush current 7.5
COP Cooling 3.21
Noise Sound level dB(A) Hi : 49 Me : 37 Lo : 28 55
Cooling
level Power level dB 63 67
Exterior dimensions (Height x Width x Depth) mm 268 x 790 x 213 595 x 780 (+62) x 290
Exterior appearance Fine snow Stucco white
(Munsell color) (8.0Y 9.3/0.1) near equivalent (4.2Y 7.5/1.1) near equivalent
Net weight kg 9.5 35
Compressor type & Q'ty — 5RS132XAB21 (Rotary type) x 1
Motor (Starting method) kW — 1.50 (Line starting)
Refrigerant oil 0.37 (FV50S)
Refrigerant
Refrigerant (4) kg R410A 1.30 (Pre-charged up to the piping length of 15m)
equipment
Heat exchanger Slit fins & inner grooved tubing M fins & inner grooved tubing
Refrigerant control Capillary tubes + Electronic expansion valve
Deice control Microcomputer control
Fan type & Q'ty Tangential fan x 1 Propeller fan x 1
Motor W 38 24
Air handling
Air flow Cooling m3 / min Hi : 12.0 Me : 7.6 Lo : 4.7 38
equipment
Fresh air intake Not possible —
Air filter, Quality / Quantity Polypropylene net (washable) x 2 —
Shock & vibration absorber — Cushion rubber (for compressor)
Operation switch Wireless remote control —
Operation Room temperature control Microcomputer thermostat —
control RUN : Green, TIMER : Yellow, HI POWER : Green,
Operation Display
3D AUTO : Green
Compressor overheat protection, Overcurrent protection,
Safety devices Frost protection, Serial signal error protection, Fan motor error protection,
Cooling overload protection, Lock rotor protection
Refrigerant piping size (O.D) mm Liquid line :φ6.35 (1/4") Gas line :φ12.7 (1/2")
Connecting method Flare connecting
Liquid line : 0.4
Attached length of piping m —
Installation Gas line : 0.33
data Insulation for piping Necessary (Both sides), independent
Refrigerant line (one way) length Max. 25
Vertical height difference between m Max. 15 (Outdoor unit is higher)
outdoor unit and indoor unit Max. 15 (Outdoor unit is lower)
Drain hose Connectable (VP 16) —
Recommended breaker size A 16
Size x Core number 1.5mm2 x 4 cores (Including earth cable)
Connection wiring
Connecting method Terminal block (Screw fixing type)
Accessories (included) Mounting kit
Option parts —
Note (1) The data are measured at the following conditions. The pipe length is 7.5m.

Item Indoor air temperature Outdoor air temperature

Standards
Operation DB WB DB WB
Cooling 27˚C 19˚C 35˚C 24˚C ISO-T1 , JIS C 9612
(2) This air-conditioner is manufactured and tested in conformity with the ISO.
(3) The operation data are applied to the 220V districts respectively.
(4) The refrigerant quantity to be charged includes the refrigerant in 15m connecting piping.
(Purging is not required even for the short piping.)

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 788
Symbol Content
17.5 60 60 27
A Gas piping ȭ12.7㸦1㸭2"㸧㸦Flare㸧
B Liquid piping ȭ6.35㸦1㸭4"㸧
㸦Flare㸧

45
45
C Hole on wall for right rear piping 㸦ȭ65㸧
D Hole on wall for left rear piping 㸦ȭ65㸧
(1) Indoor unit

E Drain hose VP16

F Outlet for wiring
G Outlet for piping㸦on both side㸧
213 3
790
Model SRK18YLV-S1

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G

268
60
2. EXTERIOR DIMENSIONS

9
Outlet for down piping Terminal block 45
㸦Refer to the above view㸧
F

-
Installation plate

-
㸦Service space㸧 50 138 450 202 100 㸦Service space㸧
206.5 450 133.5
102.5 585 102.5 Wireless remote control
Unit
150

39.3
43.2
7.5
65 㸦Service space㸧
60 17.3

200
252.2 Note㸦1㸧The model name label is attached
44.5
ࠉࠉࠉon the underside of the panel.
15㸦Service space㸧

44.5
8.3

53.5 53.5 Unit:mm

D E B A C
380.6
448.6
520

Space for installation and service when viewing from the front
'16 • SRK-T-192
 Notes
（1）It must not be surrounded by walls on the four sides.
390.6 50.6 （2）The unit must be fixed with anchor bolts. An anchor bolt must not
protrude more than 15mm.
E 12
（3）Where the unit is subject to strong winds, lay it in such
a direction that the blower outlet faces perpendicularly
(2) Outdoor unit

24.3
D to the dominant wind direction.

63.4
（4）Leave 1m or more space above the unit.
（5）A wall in front of the blower outlet must not exceed the units height.
（6）The model name label is attached on the lower right corner of the front panel.
Model SRC18YLV-S1

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290
312.5
351.6
Intake L3
L2 L4

69.4
(Service
space )

14.8
Intake
390.6
111.6 510 158.4 17.9 Outlet L1
780 61.9

-
-
Minimum installation space
Terminal block Examples of
installation
Dimensions
L1 Open 280 280 180
L2 100 75 Open Open
L3 100 80 80 80
138.4 33.5
L4 250 Open 250 Open
C

595
B Symbol Content
40°

A Service valve connection（igas side） φ12.7（1／2"）（Flare）

42.5
40°

B Service valve connection（iliquid side） φ6.35（1／4"）（Flare）

C Pipe/cable draw-out hole
D Drain discharge hole φ20×2places

97.7
A
E Anchor bolt hole M10×4places

15.8
Unit:mm
'16 • SRK-T-192
 '16 • SRK-T-192

(3) Wireless remote control

Unit: mm

150

60 17.3

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 '16 • SRK-T-192

3. ELECTRICAL WIRING
(1) Indoor unit
Model SRK18YLV-S1

LOUVER LOUVER
MOTOR MOTOR FLAP FAN
（R） （L） MOTOR MOTOR
HEAT
M M M M EXCHANGER

5 5 5 CONTROL
BOX

YELLOW
BLACK
WHITE

BLUE
RED
CNY CNX CNM 1 3 4 5 6
CNU

N WHITE

VARISTOR
U

L BLACK

FUSE
250V 3.15A

RED
J
PRINTED CIRCUIT

BOARD YELLOW／GREEN
G
YELLOW／GREEN
WHITE
BLACK

CNE CNG CNF

RED

1 2／N 3

8 2 2 2
TERMINAL
BLOCK
t゜

t゜

DISPLAY
HUMIDITY
ROOM TEMP.

HEAT EXCH.

WIRELESS
SENSOR

TO OUTDOOR UNIT
R-AMP
SENSOR
SENSOR

BACK UP SW

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 R

（YE）
（OR）
TERMINAL
(2) Outdoor unit

PWB ASSY（SUB） PWB ASSY（MAIN）

BLOCK

T1
T2
TB POWER TRANSISTOR
FUSE R IN F8
（BK） （BK） F2
L 1 RO P U （RD）
250V 20A （BK） R U
250V 20A
Model SRC18YLV-S1

（WH） S IN ACTIVE 250V 20A

N 2 FILTER
+++ NU V （WH） M
SO V
（WH） S UNIT

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NV W （BK）
3～
3 NW W
S-1 CM
（WH） S-2
（YG） G1
（YG）

F3 250V 1A

F1
M
250V 2A

（RD） C-2 CNFFAN

SWITCHING POWER FMo
CIRCUIT

-
CNTH CNEEV

-
2 2 2

t゜ t゜ t゜
M

TH1 TH2 TH3 EEV

LEGEND Color
CM COMPRESSOR MOTOR BK BLACK
EEV ELECTRIC EXPANSION VALVE（COIL） RD RED
FMo FAN MOTOR WH WHITE
R REACTOR OR ORANGE
TH1 HEAT EXCHANGER SENSOR BR BROWN
（OUTDOOR UNIT） YE YELLOW
TH2 OUTDOOR AIR TEMP. SENSOR Y／G YELLOW／GREEN
TH3 DISCHARGE PIPE TEMP. SENSOR
'16 • SRK-T-192
 '16 • SRK-T-192

4. PIPING SYSTEM
Model SRK18YLV-S1

Cooling cycle

Indoor unit Flare Outdoor unit Outdoor air

connection temperature sensor
Service valve
(TH2)
(Gas)

Gas pipe Discharge pipe

Check joint temperature sensor
Room temperature Heat (φ12.7)
exchanger (TH3)
sensor sensor
(Th1) (Th2) Muffler

Humidity
sensor
Heat
(HD) exchanger
Heat
exchanger
Compressor
Heat
exchanger
sensor
(TH1)
Capillary tube
Electronic
expansion valve
Liquid Service valve
pipe (EEV)
(Liquid)
(φ6.35) Capillary tube

Flare connection

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 '16 • SRK-T-192

5. RANGE OF USAGE & LIMITATIONS

Model
Item
Indoor return air temperature Cooling operation : Approximately 21 to 32 D.B.
(Upper, lower limits) (Refer to the selection chart)
Outdoor air temperature Cooling operation : Approximately 21 to 43 D.B.
(Upper, lower limits) (Refer to the selection chart)

Refrigerant line (one way) length Max. 25m

Vertical height difference between Max. 15m (Outdoor unit is higher)

outdoor unit and indoor unit Max. 15m (Outdoor unit is lower)

Power source voltage Rating ±10%

Voltage at starting Min. 85% of rating

Max. 7 times/h
Frequency of ON–OFF cycle (Inching prevention 5 minutes)
ON and OFF interval Min. 3 minutes

Net capacity = Capacity shown on specification Correction factors as follows.

(1) Coefficient of cooling capacity in relation to temperatures

1.3
1.3

1.2
relation to temperature

1.2
Cooling
relation to temperature
Coefficient of cooling
Coefficient of cooling

Cooling
1.1
1.1
1.0
1.0
capacity in
capacity in

0.9
0.9
0.8
0.8
0.7
0.7
0.6

0.6 Applicable range

operation
Outdoor air D.B.

46 Applicable range
°Ctemperature
(°C D. B.)

40
Cooling operation
air D.B.

35
temperature

43
30
Cooling

40
D.B.

25 26
35
Outdoor

20 24
30
25
0
21
-5 Depends on installed situation
-10 16 18 20 22 24
-15 Indoor air W.B. temperature °C W.B. ISO-T1 Standard Condition
14 16 18 20 22
Indoor air W.B. temperature °C W.B. ISO-T1 Standard Condition

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 '16 • SRK-T-192

(2) Correction of cooling capacity in relation to one way length of refrigerant piping

Piping length [m] 7 10 15 20 25 30

Cooling 1.0 0.99 0.975 0.965 0.95 0.935

How to obtain the cooling capacity

SRK18YLV-S1

5000 = 4875

SRK18YLV-S1

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 '16 • SRK-T-192

6. APPLICATION DATA
Safety precautions
• When install the unit, be sure to check whether the selection of installation place, power source specifications, usage limitation (piping
length, height differences between indoor and outdoor units, power source voltage and etc.) and installation spaces.

• We recommend you to read this “SAFETY PRECAUTIONS” carefully before the installation work in order to gain full advantage of the functions
of the unit and to avoid malfunction due to mishandling.
• The precautions described below are divided into WARNING and CAUTION . The matters with possibilities leading to serious conse-
quences such as death or serious personal injury due to erroneous handling are listed in the WARNING and the matters with possibilities
leading to personal injury or damage of the unit due to erroneous handling including probability leading to serious consequences in some cases are
listed in CAUTION . These are very important precautions for safety. Be sure to observe all of them without fail.
• Be sure to confirm no anomaly on the equipment by commissioning after completed installation and explain the operating methods as well as the
maintenance methods of this equipment to the user according to the owner’s manual.
• Keep the installation manual together with owner’s manual at a place where any user can read at any time. Moreover if necessary, ask to hand them
to a new user.
• For installing qualified personnel, take precautions in respect to themselves by using suitable protective clothing, groves, etc., and then perform the
installation works.
• Please pay attention not to fall down the tools, etc. when installing the unit at the high position.
• If unusual noise can be heard during operation, consult the dealer.
• Symbols which appear frequently in the text have the following meaning:

Observe instructions
Strictly prohibited Provide proper earthing
with great care

WARNING
• Installation must be carried out by the qualified installer. • The electrical installation must be carried out by the qualified electrician
If you install the system by yourself, it may cause serious trouble such as in accordance with “the norm for electrical work” and “national wiring
water leaks, electric shocks, fire and personal injury, as a result of a system regulation”, and the system must be connected to the dedicated circuit.
malfunction. Power source with insufficient capacity and incorrect function done by im-
• Install the system in full accordance with the instruction manual. proper work can cause electric shocks and fire.
Incorrect installation may cause bursts, personal injury, water leaks, electric • Be sure to shut off the power before starting electrical work.
shocks and fire. Failure to shut off the power can cause electric shocks, unit failure or incorrect
• Be sure to use only for household and residence. function of equipment.
If this appliance is installed in inferior environment such as machine shop and • Be sure to use the cables conformed to safety standard and cable ampac-
etc., it can cause malfunction. ity for power distribution work.
• Use the original accessories and the specified components for installation. Unconformable cables can cause electric leak, anomalous heat production or
If parts other than those prescribed by us are used, It may cause water leaks, fire.
electric shocks, fire and personal injury. • This appliance must be connected to main power source by means of a
circuit breaker or switch (fuse:16A) with a contact separation of at least
• Install the unit in a location with good support. 3mm.
Unsuitable installation locations can cause the unit to fall and cause material
damage and personal injury. • When plugging this appliance, a plug conforming to the norm IEC60884-
1 must be used.
• Ensure the unit is stable when installed, so that it can withstand earth-
quakes and strong winds. • Use the prescribed cables for electrical connection, tighten the cables
securely in terminal block and relieve the cables correctly to prevent
Unsuitable installation locations can cause the unit to fall and cause material overloading the terminal blocks.
damage and personal injury.
Loose connections or cable mountings can cause anomalous heat production
• Ventilate the working area well in the event of refrigerant leakage during or fire.
installation.
• Arrange the wiring in the control box so that it cannot be pushed up fur-
If the refrigerant comes into contact with naked flames, poisonous gas is pro- ther into the box. Install the service panel correctly.
duced.
Incorrect installation may result in overheating and fire.
• When installing in small rooms, take prevention measures not to exceed
the density limit of refrigerant in the event of leakage. • Be sure to fix up the service panels.
Consult the expert about prevention measures. If the density of refrigerant Incorrect fixing can cause electric shocks or fire due to intrusion of dust or
exceeds the limit in the event of leakage, lack of oxygen can occur, which can water.
cause serious accidents. • Be sure to switch off the power source in the event of installation, inspec-
tion or servicing.
• After completed installation, check that no refrigerant leaks from the system.
If refrigerant leaks into the room and comes into contact with an oven or other If the power source is not shut off, there is a risk of electric shocks, unit fail-
hot surface, poisonous gas is produced. ure or personal injury due to the unexpected start of fan.
• Use the prescribed pipes, flare nuts and tools for R410A. • Stop the compressor before disconnecting refrigerant pipes in case of
pump down operation.
Using existing parts (for R22 or R407C) can cause the unit failure and serious
accidents due to burst of the refrigerant circuit. If disconnecting refrigerant pipes in state of opening service valves before
compressor stopping, air can be sucked, which can cause burst or personal
• Tighten the flare nut by torque wrench with specified method. injury due to anomalously high pressure in the refrigerant circuit
If the flare nut were tightened with excess torque, this may cause burst and • Only use prescribed option parts. The installation must be carried out by
refrigerant leakage after a long period. the qualified installer.
• Do not open the service valves for liquid line and gas line until completed If you install the system by yourself, it can cause serious trouble such as water
refrigerant piping work, air tightness test and evacuation. leaks, electric shocks, fire.
If the compressor is operated in state of opening service valves before com-
pleted connection of refrigerant piping work, air can be sucked into refrigerant
circuit, which can cause bust or personal injury due to anomalously high pres-
sure in the refrigerant.

• Do not put the drainage pipe directly into drainage channels where poi- • Do not bundling, winding or processing for the power cable. Or, do not
sonous gases such as sulphide gas can occur. deforming the power plug due to tread it.
Poisonous gases will flow into the room through drainage pipe and seriously This may cause fire or heating.
affect the user’s health and safety. • Do not vent R410A into the atmosphere : R410A is a fluorinated green-
• Ensure that no air enters in the refrigerant circuit when the unit is in- house gas, covered by the Kyoto Protocol with Global Warming Potential
stalled and removed. (GWP)=1975.
If air enters in the refrigerant circuit, the pressure in the refrigerant circuit • Do not run the unit with removed panels or protections.
becomes too high, which can cause burst and personal injury. Touching rotating equipments, hot surfaces or high voltage parts can cause
• Do not processing, splice the power cable, or share a socket with other personal injury due to entrapment, burn or electric shocks.
power plugs. • Do not perform any change of protective device itself or its setup condition.
This may cause fire or electric shock due to defecting contact, defecting insu- The forced operation by short-circuiting protective device of pressure switch
lation and over-current etc. and temperature controller or the use of non specified component can cause
fire or burst.
• Carry out the electrical work for ground lead with care.
Do not connect the ground lead to the gas line, water line, lightning conductor or telephone line’s ground lead. Incorrect grounding can cause unit faults such as
electric shocks due to short-circuiting.

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 '16 • SRK-T-192

CAUTION
• Use the circuit breaker with sufficient breaking capacity. • Take care when carrying the unit by hand.
If the breaker does not have sufficient breaking capacity, it can cause the unit If the unit weights more than 20kg, it must be carried by two or more persons.
malfunction and fire. Do not carry by the plastic straps, always use the carry handle when carrying
• Earth leakage breaker must be installed. the unit by hand. Use gloves to minimize the risk of cuts by the aluminum
If the earth leakage breaker is not installed, it can cause electric shocks. fins.
• Install isolator or disconnect switch on the power source wiring in ac- • Dispose of any packing materials correctly.
cordance with the local codes and regulations. Any remaining packing materials can cause personal injury as it contains
nails and wood. And to avoid danger of suffocation, be sure to keep the plastic
• Be sure to install indoor unit properly according to the instruction manu- wrapper away from children and to dispose after tear it up.
al in order to run off the drainage smoothly.
Improper installation of indoor unit can cause dropping water into the room • For installation work, be careful not to get injured with the heat
and damaging personal property. exchanger, piping flare portion or screws etc.
• Install the drainage pipe to run off drainage securely according to the • Be sure to insulate the refrigerant pipes so as not to condense the ambient
installation manual. air moisture on them.
Incorrect installation of the drainage pipe can cause dropping water into the Insufficient insulation can cause condensation, which can lead to moisture
room and damaging personal property. damage on the ceiling, floor, furniture and any other valuables.
• Be sure to install the drainage pipe with descending slope of 1/100 or • When perform the air-conditioner operation (cooling or dehumidifying
more, and not to make traps and air-bleedings. operation) in which ventilator is installed in the room. In this case, using
the air-conditioner in parallel with the ventilator, there is the possibility
Check if the drainage runs off securely during commissioning and ensure the that drain water may backflow in accordance with the room lapse into
space for inspection and maintenance. the negative pressure status. Therefore, set up the opening port such as
• After maintenance, all wiring, wiring ties and the like, should be returned incorporate the air into the room that may appropriate to ventilation (For
to their original state and wiring route, and the necessary clearance from example; Open the door a little). In addition, just as above, so set up the
all metal parts should be secured. opening port if the room lapse into negative pressure status due to regis-
• Secure a space for installation, inspection and maintenance specified in ter of the wind for the high rise apartment etc.
the manual.
Insufficient space can result in accident such as personal injury due to falling
from the installation place.

• Do not install the unit in the locations listed below. • Do not install the unit near the location where leakage of combustible
• Locations where carbon fiber, metal powder or any powder is floating. gases can occur.
• Locations where any substances that can affect the unit such as sulphide If leaked gases accumulate around the unit, it can cause fire.
gas, chloride gas, acid and alkaline can occur. • Do not install the unit where corrosive gas (such as sulfurous acid gas etc.)
• Vehicles and ships. or combustible gas (such as thinner and petroleum gases) can accumulate
or collect, or where volatile combustible substances are handled.
• Locations where cosmetic or special sprays are often used.
Corrosive gas can cause corrosion of heat exchanger, breakage of plastic parts
• Locations with direct exposure of oil mist and steam such as kitchen and and etc. And combustible gas can cause fire.
machine plant.
• Locations where any machines which generate high frequency harmonics • Do not use the indoor unit at the place where water splashes may occur
are used. such as in laundries.
Since the indoor unit is not waterproof, it can cause electric shocks and fire.
• Locations with salty atmospheres such as coastlines.
• Locations with heavy snow (If installed, be sure to provide base flame and • Do not install nor use the system close to the equipment that generates
snow hood mentioned in the manual). electromagnetic fields or high frequency harmonics.
Equipment such as inverters, standby generators, medical high frequency
• Locations where the unit is exposed to chimney smoke. equipments and telecommunication equipments can affect the system, and
• Locations at high altitude (more than 1000m high). cause malfunctions and breakdowns. The system can also affect medical
• Locations with ammonic atmospheres. equipment and telecommunication equipment, and obstruct its function or
• Locations where heat radiation from other heat source can affect the unit. cause jamming.
• Locations without good air circulation. • Do not place any variables which will be damaged by getting wet under
• Locations with any obstacles which can prevent inlet and outlet air of the the indoor unit.
unit. When the relative humidity is higher than 80% or drainage pipe is clogged,
• Locations where short circuit of air can occur (in case of multiple units condensation or drainage water can drop and it can cause the damage of valu-
installation). ables.
• Locations where strong air blows against the air outlet of outdoor unit. • Do not install the remote control at the direct sunlight.
It can cause remarkable decrease in performance, corrosion and damage of It can cause malfunction or deformation of the remote control.
components, malfunction and fire. • Do not use the unit for special purposes such as storing foods, cooling pre-
• Do not install the indoor unit in the locations listed below (Be sure to cision instruments and preservation of animals, plants or art.
install the indoor unit according to the installation manual for each model It can cause the damage of the items.
because each indoor unit has each limitation). • Do not install the outdoor unit in a location where insects and small ani-
• Locations with any obstacles which can prevent inlet and outlet air of the mals can inhabit.
unit. Insects and small animals can enter the electric parts and cause damage or fire.
• Locations where vibration can be amplified due to insufficient strength of Instruct the user to keep the surroundings clean.
structure. • Do not use the base flame for outdoor unit which is corroded or damaged
• Locations where the infrared receiver is exposed to the direct sunlight or the due to long periods of operation.
strong light beam (in case of the infrared specification unit). Using an old and damage base flame can cause the unit falling down and cause
• Locations where an equipment affected by high harmonics is placed (TV set personal injury.
or radio receiver is placed within 1m). • Do not use any materials other than a fuse with the correct rating in the
• Locations where drainage cannot run off safely. location where fuses are to be used.
It can affect performance or function and etc. Connecting the circuit with copper wire or other metal thread can cause unit
• Do not install the outdoor unit in the locations listed below. failure and fire.
• Locations where discharged hot air or operating sound of the outdoor unit • Do not touch any buttons with wet hands.
can bother neighborhood. It can cause electric shocks.
• Locations where outlet air of the outdoor unit blows directly to plants. • Do not touch any refrigerant pipes with your hands when the system is in
• Locations where vibration can be amplified and transmitted due to operation.
insufficient strength of structure. During operation the refrigerant pipes become extremely hot or extremely
• Locations where vibration and operation sound generated by the outdoor cold depending the operating condition, and it can cause burn injury or frost
unit can affect seriously (on the wall or at the place near bed room). injury.
• Locations where an equipment affected by high harmonics is placed (TV set • Do not touch the suction or aluminum fin on the outdoor unit.
or radio receiver is placed within 1m). This may cause injury.
• Locations where drainage cannot run off safely. • Do not put anything on the outdoor unit and operating unit.
It can affect surrounding environment and cause a claim. This may cause damage the objects or injury due to falling to the object.

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 '16 • SRK-T-192

Standard accessories Necessary tools for the installation work

(Installation kit) Q'ty
Accessories for indoor unit 1 Plus headed driver (Phillips screwdriver)

Installation board 2 Knife

① 1
(Attached to the rear of the indoor unit) 3 Saw
② Wireless remote control 1 4 Tape measure
③ Remote control holder 1 5 Hammer
Tapping screws 6 Spanner wrench
④ 5
(for installation board 4dia. by 25mm)

⑤
Wood screw
2
7 Torque wrench ( )
14.0 ~ 62.0N · m
(1.4 ~ 6.2kgf · m)
(for remote contorol switch holder 3.5dia. by 16mm)
8 Hole core drill (65mm in diameter)
⑥ Baterry [R03 (AAA, Micro) 1.5V] 2
9 Wrench key (Hexagon) [4m/m]
⑦ Air-cleaning filters 2
10 Vacuum pump
Filter holders
⑧ 2
(Attached to the front panel of the indoor unit) 11
Vacuum pump adapter
(Anti-reverse flow type) ( )
Designed specifically
for R410A

Option parts Q'ty 12 Gauge manifold ( )

Designed specifically
for R410A
ⓐ Sealing plate 1
ⓑ Sleeve 1
13 Change hose ( )
Designed specifically
for R410A

ⓒ
ⓓ
Inclination plate
Putty
1
1
14 Flaring tool set ( )
Designed specifically
for R410A

ⓔ Drain hose (extention hose) 1 15 Gas leak detector ( )

Designed specifically
for R410A
Piping cover Gauge for projection adjustment (Used when flare is made by
ⓕ 1 16
(for insulation of connection piping) using conventional flare tool)
17 Pipe bender

Selection of installation location

INDOOR UNIT
10 cm Right
① Where there is no obstructions to the air flow and where the side
cooled air can be evenly distributed. Left
side 10 cm
② A solid place where the unit or the wall will not vibrate.
③ A place where there will be enough space for servicing. (Where 5 cm
space mentioned right can be secured.)
④ Where wiring and the piping work will be easy to conduct.
⑤ The place where receiving part is not exposed to the direct rays
of the sun or the strong rays of the street lighting.
⑥ A place where it can be easily drained.
⑦ A place separated at least 1m away from the television or the ra-
dio.
(To prevent interfence to images and sounds.)

OUTDOOR UNIT
Air intake
① A place where good air circulation can be obtained and where rain, 10 cm
MIN
10 cm MIN

snow or sunshine will not directly strike the unit. No obstacles

(Service space
② A place where discharged hot air or unit’s operating sound will not for electrical
parts)
be a nuisance to the neighborhood. Air
intake
③ A place where servicing space can be secured. Air outlet 60 cm MIN
④ A place where vibration will not be enlarged.
*Avoid installing in the following places.
•A place near the bedroom and the like, so that the operation Note (1) If the wall is higher than 1.2 m or a ceiling
noise will cause no trouble. is present, distances larger than indicated in
•A place where there is possibility of flammable gas leakage. the above table must be provided.
•A place exposed to strong wind.
⑤ Blowing out port and suction port on the back side of the unit can
be installed at a distance of 10cm from walls.
(In case the barrier is 1.2m or above in height, or is overhead, the
sufficient space between the unit and wall shall be secured. )
⑥ When the unit is installed, the space of the following dimension
and above shall be secured.

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 '16 • SRK-T-192

Limitations for one way piping length and vertical height difference

Model
SRK18YLV-S1
Item
Total one way
Max. 25 m
piping length ( )
h
Vertical height
Max. 15 m
difference (h) r

Installation of indoor unit

Installation of installation board

Look for the inside wall structures (Intersediate support or INSTALLATION SPACE (INDOOR UNIT) (FRONT VIEW)
pillar and firaly install the unit after level surface has been
Unit : mm
checked.)
450
Space for Space for
service Indoor unit service
0 Installation board 00
 0 0

. for service

0. 0 .

Space
0.  0.
.
.


.
Mating mark for level surface
00

.
• Adjustment of the installation board in the horizontal
direction is to be conducted with five screws in a

.
. .

Space * 
.

temporary tightened state. Piping for Gas 0.

for service
Piping for Liquid .
Drain hose 0( )
Standard hole
Piping hole( ) Piping hole( )

*Leave extra space on the right side to enable removal of the lid screw.
• Adjust so that board will be level by turning the
board with the standard hole as the center.

Drilling of holes and fixture sleeve (Option parts)

Drill a hole with 65 whole core drill Adjusting sleeve length

Cut off the sleeve

collar in case of
drawing piping
out to rear.
Cut off the sleeve
collar that can be
Wall thickness
seen from beneath
the unit. + 1.5 cm
Indoor side Outdoor side
Note (1) Drill a hole with incline of 5 degree from
indoor side to outdoor side.

Install the sleeve

(Inserting sleeve) (*Sleeve + *Inclined + *Sealing plate)
View of sleeve when installed

Inclined
Turn to flange
tighten Sleeve
Sealing
Paste plate

Indoor side Outdoor side

Indoor side Outdoor side

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 '16 • SRK-T-192

Terminal block
Preparation of indoor unit
① Mounting of connecting wires Screw*

ⓐ Remove the lid.

ⓑ Remove the wiring clamp. Clamp
ⓒ Connect the connecting wire securely to the terminal block.
Use cable for interconnection wiring to avoid loosening of the
wires.
CENELEC code for cables Required field cables.
H05RNR4G1.5 (Example) or 245IEC57
H Harmonized cable type
05 300/500 volts Lid (R)
R Natural-and/or synth. rubber wire insulation * Leave space to allow
removal of this screw
N Polychloroprene rubber conductors insulation
after installation.
R Standed core
4or5 Number of conductors
G One conductor of the cables is the earth conductor ② Shaping the pipe
(yellow/green)
1.5 Section of copper wire (mm2) Pipe

•
Connect the connection wire securely to the terminal block.
If the wire is not affixed completely, contact will be poor,
and it is dangerous as the terminal block may heat up and
Drain hose
catch fire.
• Take care not to confuse the terminal numbers for indoor • Hold the bottom of the pipe and change its direction before
and outdoor connections. stretching it and shaping it.
• Earth lead wire shall be longer than the other lead wires for
the electrical safety in case of the slipping out of the cord ③ Taping of the exterior
from the anchorage.
• The earth line of power cable must be properly earthed.
• Affix the connection wire using the wiring clamp.
ⓓ Fix the connecting wire by wiring clamp.
ⓔ Attach the lid.
ⓕ Close the air inlet panel.
• Tape only the portion that runs through the wall.
• Always tape the crossover wires with the pipe.

Piping is possible in the rear, left,

④ Cautions when piping from the left and the rear center of the unit left rear, left downward, right or
downward direction.
[ Top View ]
Left side piping Right side piping
Right
Left rear piping Right rear piping

Rear
Downward Left rear Left
Left side piping Right side piping
Left downward

[Drain hose changing procedures]

1. Remove the drain hose. 2. Remove the drain cap. 3. Insert the drain cap. 4. Connect the drain hose.

• Remove the screw and • Remove it with hand • Insert the drain cap which was • Insert the drain hose securely,
drain hose, making it or pliers. removed at procedure “2” securely making rotate. And install the
rotate. using a hexagonal wrench etc. screw.
Note: Be careful that If it is not Note: Be careful that if it is
Inserted securely, water leakage may not inserted securely, water
occur. leakage may occur.
• Do not place the power cable above the gutter, because • Do not make traps in the drain hose line.
the air-conditioner is structured in a way where condensa-
tion on the back side is collected in to the drain pan before
drainage.

Gutter

Declining slope Inverted slipe Trap

Wall

Pipes storage area

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 '16 • SRK-T-192

⑤ Securing the indoor unit to the installation board

Indoor unit Installing steps

Installation
board
Latch (2 locations)
1.Hook the upper part
of the indoor unit to
the installation board.

Installation
board
Wall 2.The unit can be installed
simply by gently push-
ing in the lower part.
Indoor unit
base lower latch

• How to remove the indoor unit from the installation board

① Push up at the marked portion of the indoor unit
base lower latch, and slightly pull it toward you. Lid
(both right and left hand sides)
(The indoor unit base lower latch can be removed
from the installation board)
② Push up the indoor unit upward. So the indoor unit
will be removed from the installation board. The marked portion of the
Indoor unit bese lower latch

Removal and installation of the front panel

① Removing
• Remove the 2 set screws.
• Move the lower part of the panel forward and push upwards to
remove. (Remove the 3 latches in the upper section.)
② Fitting
• Do remove the air filter.
• Cover the body with the front panel. Set screws
• Tighten the 2 set screws.
• Fit the air filter. Carry out in the above order.

Open/close and detachment/attachment of air inlet panel

① To open, pull the panel at both ends of lower part and release
latches, then pull up the panel until you feel resistance. (The
air inlet panel stops at approx. 60˚ open position.)
② To close, hold the panel at both ends of lower part to lower
downward and push it slightly until the latch works, then
push the center portion slightly.
③ To remove, pull up the panel to the position shown in right
illustration and pull it toward you.
④ To install, insert the air inlet panel arm into the slot on the
front panel from the position shown in right illustration,
hold the panel at both ends of lower part, lower it downward
slowly, then push it slightly until the latch works and further
push the center portion slightly.

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 '16 • SRK-T-192

Installation of outdoor unit

① Make sure that the unit is stable in installation. Fix the Outdoor unit
unit to stable base.
② When installing the unit at a higher place or where it
could be toppled by strong winds, secure the unit firmly
with foundation bolts, wire, etc.
③ Perfrom wiring, making wire terminal numbers conform When wire length exceeds
to terminal numbers of indoor unit terminal block. 30m, 2.0-mm wires.
④ Earth lead wire shall be longer than the other lead wires
Safety
breaker
for the electrical safety in case of the slipping out of the 16A
cord from the anchorage.
Earth
Connect using ground screw located near mark. leakage Earth
circuit
breaker
(POWER CABLE)
CENELEC code for cables requiring fields cables. Power Indoor unit
H05RNR3G1.5 source

Connection of refrigerant pipings

Preparation
Keep the openings of the pipes covered with tapes etc. to prevent dust, sand, etc. from entering them.

① Indoor unit side ② Outdoor unit side

Dimension A
Liquid side CAUTION
(ø6.35): 9.0 dia
Press Gas side Do not apply refrigerating
(Do not (ø12.7): 16.2 dia machine oil to the flared
turn) Remove Remove surface.

• Remove the flared nuts. • Remove the flared nuts. • Install the removed flared nuts to the pipes to
(on both liquid and gas sides) (on both liquid and gas be connected, then flare the pipes.
sides)

• Flaring work
Measurement B

Flaring block
Copper pipe

Measurement B (mm) Use a flare tool designed for R410A or a conventional flare tool.
Copper pipe diameter Clutch type flare tool for Conventional (R22) flare tool Please note that measurement B (protrusion from the flaring
R410A Clutch type Wing nut type block) will vary depending on the type of a flare tool in use.
If a conventional flare tool is used, please use a copper pipe
ø6.35 0.0 ~ 0.5 1.0 ~ 1.5 1.5 ~ 2.0
gauge or a similar instrument to check protrusion so that you can
ø12.7 0.0 ~ 0.5 1.0 ~ 1.5 2.0 ~ 2.5 keep measurement B to a correct value.

Connection of refrigerant piping

① Indoor unit side ② Outdoor unit side
• Connect firmly gas and liquid side • Connect firmly gas and liquid side
pipings by Torque wrench. pipings by Torque wrench.

Spanner
for fixing
the piping)
Torque
wrench

• Specified torquing value: • Specified torquing value:

Liquid side (ø6.35) : 14~18N·m (1.4~1.8kgf·m) Liquid side (ø6.35) : 14~18N·m (1.4~1.8kgf·m)
Gas side (ø12.7) : 49~62N·m (4.9~6.2kgf·m) Gas side (ø12.7) : 49~62N·m (4.9~6.2kgf·m)
• Use one more spanner to fix the valve.

• Always use a Torque wrench and back up spanner to tighten the flare nut.

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 '16 • SRK-T-192

Air purge

① Tighten all flare nuts in the pipings both Service valve Compound pressure gauge
cap Pressure gauge
indoor and outside so as not to cause
leak. Service valve Gauge manifold
(two-way valve) -0.1MPa (Designed specifically for R410A)
② Connect service valve, charge hose, (-76cmHg)
manifold valve and vacuum pump as is Handle Lo Handle Hi
illustrated right. Service valve Charge hose
③ Open manifold valve handle Lo to its (three-way valve) (Designed specifically for R410A)
full width, and perform vacuum or evac- Service valve
Vacuum pump adapter
(Anti-reverse flow type)
uation. cap (Designed specifically for R410A)
Continue the vacuum or evacuation Vacuum pump
operation for 15 minutes or more and Check joint Charge hose (Designed specifically for R410A)
check to see that the vacuum gauge Securely tighten the service valve cap and the check joint blind nut after adjustment.
reads – 0.1 MPa (– 76 cmHg).
Service valve size Service valve cap Check joint blind nut
④ After completing vacuum operation, ful- (mm) tightening torque (N•m) tightening torque (N•m)
ly open service valve (Both gas and liq- ø6.35 (1/4") 20~30
uid sides) with hexagon headed wrench. 10~12
ø12.7 (1/2") 25~35
⑤ Detach the charge hoses.
⑥ Check for possible leakage of gas in the
connection parts of both indoor and out-
door.

● Since the system uses check joints differing in diameter from those found on the conventional models, a charge hose (for R22) presently in use is not
applicable.
Please use one designed specifically for R410A.
● Please use an anti-reverse flow type vacuum pump adapter so as to prevent vacuum pump oil from running back into the system.
Oil running back into an air-conditioning system may cause the refrigerant cycle to break down.

♦ Additional refrigerant charge

Model SRK/C18YLV-S1
Less than 15m : Not required
Additional refrigerant
more than 15m : 20g/m

Insulation of connecting portion

① Cover the connection portion of the refrigerant piping with the To cover the connecting portion with insula-
pipe cover and seal them. tion materials, cut upper portion and then seal
Vinyl tape it with insulation materials.
If neglecting to do so, moisture occurs on the piping and water
will drip out.

② Finishing and fixing Insulation

Cover the exterior portion with cov-
ⓐ Tie up the piping with wrapping tape, and shape it so that it conforms Refrigerant piping ering tape and shape the piping so it
to which the pipe is attached. will match the contours of the route
Electrical wiring
that the piping to take. Also fix the
ⓑ Fix them with clamps as right figure. Covering tape wiring and pipings to the wall with
Drain hose clamps.

Tapping screw

How to relocate or dispose of the unit

• In order to protect the environment, be sure to pump down (recovery of ● Forced cooling operation
refrigerant). Turn on a power source again after a while after turn
• Pump down is the method of recovering refrigerant from the indoor unit off a power source. Then press continually the ON/
to the outdoor unit when the pipes are removed from the unit. OFF button 5 seconds or more.
<How to pump down>
① Connect charge hose to check joint.
② Liquid side : Close the liquid valve with hexagon wrench key.
Gas side : Fully open the gas valve.
Carry out cooling operation. (If indoor temperature is low, operate
forced cooling operation.) Unit ON/OFF button
③ After low pressure gauge become 0.01MPa, stop cooling operation and
close the gas valve.

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 '16 • SRK-T-192

Installation of remote control switch

Mounting method of battery Fixing to pillar or wall
• Uncover the remote control switch, and mount the batter- • Conventionally, operate the wireless remote control by
ies [R03(AAA, Micro)×2 pieces] in the body regularly. holding in your hand.
(Fit the poles with the indication marks, ⊕ & ⊖ without • Avoid installing it on a clay wall etc.
fail)

Battery

-
CAUTION
+ + Do not use new and
- old batteries together.
Cover Screws

Earthing work
• Earth work shall be carried out without fail in order to prevent electric shock and noise generation.
• The connection of the earth cable to the following substances causes dangerous failures, therefore it shall never be done.
City water pipe, Town gas pipe, TV antenna, lightning conductor, telephone line, etc.

Trial run and operation

① Conduct trial run after confirming that there is no gas leaks.
② When conducting trial run set the remote control thermostat to continuous operation position. However when the power source is
cut off or when the unit’s operation switch is turned off or was turned to fan operation position, the unit will not go into opera-
tion in order to protect the compressor.
③ Explain to the customer on the correct usage of the air-conditioner in simple layman’s terms.
④ Make sure that drain flows properly.

Installations test check points

Check the following points again after completion of the installation, and before turning on the power. Conduct a test run again and
ensure that the unit operates properly.
At the same time, explain to the customer how to use the unit and how to take care of the unit following the instruction manual.

After installation Test run

The power source voltage is correct as the rating. Air-conditioning operation is normal.
No gas leaks from the joints of the service valve. No abnormal noise.
Power cables and crossover wires are securely fixed to Water drains smoothly.
the terminal board. Protective functions are not working.
Service valve is fully open. The remote control is normal.
The pipe joints for indoor and outdoor pipes have Operation of the unit has been explained to the customer.
been insulated.
(Three-minute restart preventive timer)
When the air-conditioner is restarted or when changing the operation, the unit will not start operating for approximately 3 minutes.
This is to protect the unit and it is not a malfunction.

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 '16 • SRK-T-192

7. OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER

Operation and indication section for remote control
(1) Operation control function by remote control

SRK10YJV-S
SRK13YJV-S
Remote control

Operation section
S Operation section

FAN SPEED button OPERATION MODE select button

Each time the button is pushed, the Each time the button pushed, the
indicator is switched over in turn. indicator is switched over in turn.

ON/OFF (luminous) button

HI POWER/ECONO button
Press for starting operation, press again
This button changes the HIGH POWER/ for stopping.
ECONOMY mode.
Page 14 AIR FLOW (UP/DOWN) button
This button changes the air flow (up/down) mode.
Page 10
TEMPERATURE button
This button sets the room temperature. AIR FLOW (LEFT/RIGHT) button
(This button changes the present time and
TIMER time.) This button changes the air flow (left/right) mode.
Page 10

ON TIMER button 3D AUTO button

This button selects ON TIMER operation. This button sets 3D AUTO operation.
Page 10
Page 12

OFF TIMER button

SLEEP button This button selects OFF TIMER operation.

This button changes to SLEEP operation. Page 11

Page 11 RESET switch

Switch for resetting microcomputer and
setting time.
Page 13, 17
• The above illustration shows all controls, but in practice
CLEAN switch only the relevant parts are shown. CANCEL button
This switch changes the CLEAN mode.
This button cancels the ON timer, OFF
Page 15 timer, and SLEEP operation.

Indication
Unit section
display section
Unit indication section
SRK10YJV-S
CLEAN indicator RUN
ON/OFF lightindicator
TIMER (green)
SRK13YJV-S Illuminates during operation
Indicates during CLEAN operation. Indicates during
and CLEAN ON/OFF TIMER operation.
operation.

TIMER light (yellow)

Illuminates during TIMER
OPERATION MODEoperation.
indicator
SLEEP indicator
Indicates during SLEEP operation. Indicates selected operation with lamp.
[ (Auto) • (Cool) • (Fan) • (Dry)]

TEMPERATURE indicator
HI POWER
Indicates light (green)
set temperature.
TIME indicator
(Does
Illuminates not indicate
during temperature
HIGH POWER when operation
operation. Indicates present time or timer setting time.
mode is on AUTO)
3D AUTO light (green)
FAN SPEED indicator AIR FLOW indicator
Illuminates during 3D AUTO operation.
Indicates set air flow rate with lamp. Shows selected flap and louver mode.

HowHIto open the air

POWER/ECONO inlet
MODE panel
indicator Unit ON/OFF button
3D AUTO indicator
Place fingers at the
Indicates recesses
during on both
HIGH sides of the panel and pull up the panel
POWER/ECONOMY In emergencies, this button can be used for turning on/off the unit when
Indicates during 3D AUTO operation.
to this side
mode sooperation.
that it will be opened by about 60 degrees. remote control is not available.
Page 15

Transmission procedure
When each button on the remote control is pressed with the remote control pointing towards the air-conditioner unit a signal is transmitted.
When the air-conditioner receives the signal correctly, it will beep.

–7–

Unit ON/OFF button

RMA012A032_En.p65
How to close the air inlet panel
7
- 21 - 04/05/2010, 17:26

Push both sides evenly and press further lightly at the center.

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 Unit indication section
SRK10YJV-S RUN light (green)
SRK13YJV-S
'16 • SRK-T-192
Illuminates during operation
and CLEAN operation.

TIMER light (yellow)

Illuminates during TIMER operation.
(2) Unit ON/OFF button
When the remote control batteries become weak, or if the remote control is lost or malfunctioning, this button may be used to
turn the unit on and off.
HI POWER light (green)
(a) Operation Illuminates during HIGH POWER operation.
Push the button once to place
3D AUTO lightthe unit in the automatic mode. Push it once more to turn the unit off.
(green)
Illuminates during 3D AUTO operation.
(b) Details of operation
The unit will go
Howintoto
theopen
automatic mode
the air in which
inlet panelit automatically determines,
Unitfrom room temperature
ON/OFF button (as detected by sen-
sor), whetherPlace
to go into
fingers therecesses
at the cooling orsides
on both dehumidifying
of the panel and pullmodes.
up the panel In emergencies, this button can be used for turning on/off the unit when
to this side so that it will be opened by about 60 degrees. remote control is not available.
Page 15

Function Room temperature

Fan speed Flap Timer switch
Operation mode setting
Cooling About 24ºC
Auto Auto Continuous
Dehumidifying About 24ºC
Unit ON/OFF button
Unit ON/OFF button
(3) Auto restart function
How to close the air inlet panel
(a) Auto restart function records the operational status of the air-conditioner immediately prior to be switched off by a power
Push both sides evenly and press further lightly at the center.
cut, and then automatically resumes operations after the power has been restored.
(b) The followingRemoval,
settings will be cancelled:of air inlet panel
installation
JumperSecure
wire (J12)
(i) Timer settings
When removing the air inlet panel for internal cleaning or others, open the either the upper or lower edge of the air inlet panel by lightly pushing it
panel by 80 degrees and then pull it to this side. in, and then close the panel.
(ii) HIGH POWER operation

Notes (1) Auto restart function is set at on when the air-conditioner is shipped from the factory. Con-
sult with your dealer if this function needs to be switched off.
(2) When power failure ocurrs, the timer setting is cancelled. Once power is resumed, reset the
timer.
(3) If the jumper wire (J12) “AUTO RESTART” is cut, auto restart is disabled. (See the diagram at
right)

Jumper wire (J13)

(4) Custom cord switching procedure
If two wireless remote control are installed in one room, in order to prevent wrong op-
eration due to mixed signals, please modify the printed circuit board in the indoor unit’s
control box and the remote control using the following procedure. Be sure to modify
both boards. If only one board is modified, receiving (and operation) cannot be done.
(a) Modifying the indoor unit’s printed circuit board
Take out the printed circuit board from the control box and cut off jumper wire
(J13) using wire cutters.
After cutting of the jumper wire, take measures to prevent contact with the other the
lead wires, etc.

(b) Modifying the wireless remote control –6–

(i) Remove the battery.
Cut
(ii)RMA012A032_En.p65
Cut the jumper wire shown in the6 figure at right. 04/05/2010, 17:26

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 '09•SRK-DB-087D
'16 • SRK-T-192

(5)‫ޓ‬Flap and louver control

(a) Flap

(Flap stopped) (Swing)

Angle of Flap from Horizontal

Remote control
display
COOL , DRY, FAN Approx. 10° Approx. 20° Approx. 30° Approx. 45° Approx. 60°

(b) Louver

(Louver stopped)

(Swing) (Spot) (Wide)

Angle of louver
Remote control
display
Center installation Left Approx. 45° Left Approx. 20° Center Right Approx. 20° Right Approx. 45°
Right end installation Left Approx. 45° Left Approx. 30° Left Approx. 20° Center Right Approx. 20°
Left end installation Left Approx. 20° Center Right Approx. 20° Right Approx. 30° Right Approx. 45°

(c) Swing
(i) (ii)

In COOL, DRY, FAN operation

Approx.
10°

Approx. 60°

(d) Memory flap (Flap or louver stopped)

(e) When not operating

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 '09•SRK-DB-087D
'16 • SRK-T-192

(6)‫ޓ‬3D auto operation

(a)
(i)

Air flow selection

Operation mode
AUTO HI MED LO
Indoor temp. – Setting temp. >5°C Indoor temp. – Setting temp. <
= 5°C
Cooling HI MED LO
HIGH POWER AUTO

(ii)
1)

Cooling
Flap Up/down Swing
Louver Wide (Fixed)

2)
3

Cooling
Flap Horizontal blowing (Fixed)
Louver Left/right Swing

3) 4

Cooling
Flap Up/down Swing
Louver Center (Fixed)

4)

Cooling
Flap Horizontal blowing (Fixed)
Louver Wide (Fixed)

5)

Operation mode Air flow direction contorol

Indoor temp. – Setting temp. <
= 2°C 2°C < Indoor temp. – Setting temp. <
= 5°C Indoor temp. – Setting temp. > 5°C
Cooling
The control in 4) continues. Control returns to the control in 2). Control returns to the control in 1).

(b) dehumidifying o dehumidifying

Air flow selection According to dehumidifying operation.

Flap Horizontal blowing (Fixed)
Louver Wide (Fixed)

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 '09•SRK-DB-087D
'16 • SRK-T-192

(7)ࠉTimer operation

(a) Comfortable timer setting (ON timer)

(b) Sleep timer operation

(c) OFF timer operation

(8)ࠉInstallation location setting

(a) Setting
Installation location setting
 Take the air conditioning unit’s location into account and adjust the left/right airflow rang
(i) If the air-conditioning unit is running, press the ON/OFF button to stop.

(ii) Press the AIR-FLOW (UP/DOWN) button and the 1 If the air condi
button to stop.
The installation l
AIR FLOW (LEFT/RIGHT) button together for 5 seconds

2
or more. Press the AIR
AIRFLOW
or more.
(iii) Setting the air-conditioning installation location. The installation l

L , LY
LL 3 Setting the air-
Press the AIR FL
desired location.
Each time the AI
LLL indicator is switc

(Center Installa

(Center Installation) (Right End Installation) (Left End Installation)

4 Press the ON/O

The air-condition
Press within 60 s
installation locati

Air conditioner installation location and airflow r

Airf low range Airf low range Airf low range
The diagram below indicates the airflow ranges corresponding to the air-conditioner's in
set the airflow range to maximize conditioning effectiveness.
(Left End Installation) (Center Installation) (Right End Installation)

(iv) Press the ON/OFF button.

Airflow range Airflow range

(Left End Installation) (Center Installation)

General Information
• mark will be displayed on the display panel while the air conditioner is in operatio
• When installation location of the air conditioner had been set once, installation locatio
unplugging the power cord. Please set it with a remote control again in case of changi
• The installation location setting can not be performed while the unit is in operation.
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 '16 • SRK-T-192

(9) Outline of cooling operation

(a) Operation of major functional components in cooling mode

Cooling
Thermostat ON Thermostat OFF Failure
Compressor ON OFF OFF
Indoor fan motor ON ON ON
Outdoor fan motor ON OFF OFF
(few minutes ON) (few minutes ON)

(b) Detail of control in each mode (Pattern)

(i) Fuzzy operation
During the fuzzy operation, the air flow and the compressor command speed are controlled by calculating the difference
between the room temperature setting correction temperature and the suction air temperature.

Model
SRK18YLV-S1
Fan speed
Auto 23~96rps
HI 23~96rps
MED 23~62rps
LO 23~38rps

(10)
(14)Outline of of
Outline dehumidifying (DRY) operation
dry (dehumidifying) operation
(a) Purpose of DRY mode
The purpose is "Dehumidification", and not to control the humidity to the target condition.
Indoor/outdoor unit control the operation condition to reduce the humidity, and also prevent over cooling.
(b) Outline of control
(i) Indoor unit fan speed and compressor are controlled by the area which is selected by the temperature difference.
Indoor unit fan speed
Area
D C B A
Me speed
Indoor unit
fan speed Lo speed
STOP

Limited Lower than

normal cooling operation

Compressor Limited
speed Minimum Lower than the speed in”Area A”
STOP
Set temperature
Difference between set temperature and return temperature
(ii) The indoor unit check the current area by every 5 minutes, and operate by the next checking.
(c) Other
When the outside temperature and room temperature is low for cooling operation, indoor unit can not operate in cooling, and
dehumidifying.

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 '16 • SRK-T-192

(11) Outline of automatic operation

(a) Determination of operation mode
The unit checks the indoor air temperature and the outdoor air temperature, determines the operation mode, and then begins in
the automatic operation.
Cooling
27.5

25.5

Indoor air temperature (˚C) Dehumidifying

19.5

18 30
Outdoor air temperature (˚C)

(b) The unit checks the temperature every hour after the start of operation and, if the result of check is not same as the previous op-
eration mode, changes the operation mode.
(c) When the unit is started again within one hour after the stop of automatic operation or when the automatic operation is selected
during cooling or dehumidifying operation, the unit is operated in the previous operation mode.
(d) Setting temperature can be adjusted within the following range. There is the relationship as shown below between the signals of
the wireless remote control and the setting temperature.

Signals of wireless remote control (Display)

–6 –5 –4 –3 –2 –1 ±0 +1 +2 +3 +4 +5 +6
Setting Cooling 18 19 20 21 22 23 24 25 26 27 28 29 30
temperature Dehumidifying 19 20 21 22 23 24 25 26 27 28 29 30 31

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 '16 • SRK-T-192

(12) Protective control function

(a) Frost prevention for indoor heat exchanger (During cooling or dehumidifying)
(i) Operating conditions Compressor
1) Indoor heat exchanger temperature (Th2) is lower than 5ºC. command
speed
2) 8 minutes after reaching the compressor command speed except 0 rps.
Upper
(ii) Detail of anti-frost operation limit
speed
Indoor heat exchanger
temperature 5°C or lower 2.5°C or lower
Item 0 rps
Upper limit speed 68 rps 0rps
2.5 5 8
Protects the fan tap just before
Indoor fan Depends on operation mode
frost prevention control Indoor heat exchanger
Outdoor fan Depends on operation mode Depends on stop mode temperature (ºC)
(iii) Reset conditions: The indoor heat exchanger temperature (Th2) is 8ºC or higher after 5 minutes of operation following
control of the compressor command speed upper is 0 rps.

(b) Cooling overload protective control

(i) Operating conditions: When the outdoor unit is operating with the compressor command speed of other than 0 rps, and when
the outdoor air temperature sensor (TH2) becomes 41ºC or over for 30 seconds continuously.
(ii) Detail of operation
1) Outdoor fan is stepped up by 3 speed step. (Upper limit speed is 7th speed.)
2) The lower limit of compressor command speed is set to 30 rps and even if the calculated result becomes lower than that
after fuzzy calculation, the speed is kept to 30 rps. However, when the thermo becomes OFF, the speed is reduced to 0 rps.
(iii) Reset conditions: When either of the following condition is satisfied.
1) When the outdoor air temperature becomes 40ºC or less.
2) When the compressor command speed is 0rps.

(c) Compressor overheat protection

(i) Purpose: It is designed to prevent deterioration of oil, burnout of motor coil and other trouble resulting from the com-
pressor overheat.
(ii) Detail of operation
1) Speeds are controlled with temperature detected by the sensor mounted on the discharge pipe.
(Example) Fuzzy
After lapse of 3 min. or over (3) 4 rps (1)
(3)
After lapse of 3 min. or over 4 rps
After lapse of 3 min. or over (3) Lower limit (4)

0 rps

90 100 110
Discharge pipe temperature (˚C)

Notes (1) When the discharge pipe temperature is in the range of 100 to 110ºC, the speed is reduced by 4 rps.
(2) When the discharge pipe temperature is raised and continues operation for 20 seconds without changing, then the speed is reduced again by 4 rps.
(3) If the discharge pipe temperature is still 90ºC or greater but less than 100ºC even when the compressor command speed is maintained for 3 minutes
when the temperature is 90ºC or greater but less than 100ºC, the speed is raised by 2 rps and kept at that speed for 3 minutes. This process is
repeated until the compressor command speed is reached.
(4) Lower limit speed
Cooling
Model 18    24 rps

2) If the temperature of 110ºC is detected by the sensor on the discharge pipe, then the compressor will stop immediately.
When the discharge pipe temperature drops and the time delay of 3 minutes is over, the unit starts again within 1 hour
but there is no start at the third time.

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 '16 • SRK-T-192

(d) Current safe

(i) Purpose: Current is controlled not to exceed the upper limit of the setting operation current.
(ii) Detail of operation: Input current to the converter is monitored with the current sensor fixed on the printed circuit board
of the outdoor unit and, if the operation current value reaches the limiting current value, the compressor
command speed is reduced.
If the mechanism is actuated when the speed of compressor command is less than 30 rps, the
compressor is stopped immediately. Operation starts again after a delay time of 3 minutes.
(e) Current cut
(i) Purpose: Inverter is protected from overcurrent.
(ii) Detail of operation: Output current from the converter is monitored with a shunt resistor and, if the current exceeds the
setting value, the compressor is stopped immediately. Operation starts again after a delay time of
3 minutes.

(f)
Outdoor unit failure
This is a function for determining when there is trouble with the outdoor unit during air-conditioning.
The compressor is stopped if any one of the following in item (i), (ii) is satisfied. Once the unit is stopped by this function, it is not
restarted.
(i) When the input current is measured at 1 A or less for 3 continuous minutes or more.
(ii) If the compressor command sends a 0 rps signal to the indoor unit 3 times or more within 20 minutes of the power being
turned on.

(g) Inching prevention

When the compressor goes into the thermo operation within 5 minutes since operation start or becomes various dehumidifying op-
erations, the operation is continued with the lower limit speed forcibly.

(h) Indoor fan motor protection

When the air-conditioner is operating and the indoor fan motor is turned ON, if the indoor fan motor has operated at 300 min-1
or under for more than 30 seconds, the unit enters first in the stop mode and then stops the entire system.

(i) Serial signal transmission error protection

(i) Purpose: Prevents malfunction resulting from error on the indoor ↔ outdoor signals.
(ii) Detail of operation
1) When the outdoor unit control cannot receive signals from the indoor unit
If the compressor is operating and a serial signal cannot be received from the indoor control with outdoor control hav-
ing serial signals continuously for 1 minute and 55 seconds, the compressor is stopped.
After the compressor has been stopped, it will be restarted after the compressor start delay if a serial signal can be re-
ceived again from the indoor control.
2) When the indoor unit control cannot receive signals from the outdoor unit
a) I f the outdoor unit inverter signals cannot be received for 10 seconds continuously during the transfer error check
at the first time after turning on the power source, the compressor is stopped immediately.
b) If the outdoor unit inverter signals cannot be received for 1 minute and 50 seconds continuously, it tries to restart
two time but stops the operation at third failure of restart.

(j) Rotor lock

If the motor for the compressor does not turn after it has been started, it is determined that a compressor lock has occurred and
the compressor is stopped.

(k) Outdoor fan motor protection

If the outdoor fan motor has operated at 75min-1 or under for more than 30 seconds, the compressor and fan motor are stopped.

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 '09•SRK-DB-087D

'16 • SRK-T-192

Reference
8. MAINTENANCE DATAPROCEDURES FOR ELECTRICAL EQUIPMENT
2 TROUBLESHOOTING
(1) Cautions
-

(2) Items to check before troubleshooting

-
source

(3) Troubleshooting procedure (If the air-conditioner does not run at all)
- -

Important satisfied -

AC -

NO
source

YES

NO YES

NO
YES

NO

wireless
YES

proced-

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 '09•SRK-DB-087D
'16 • SRK-T-192

(4) Troubleshooting procedure (If the air-conditioner runs)

NO YES

32

NO

33 - 36.
YES

YES

NO

33 - 36.

YES

NO

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 '16 • SRK-T-192

(5) Self-diagnosis table

When this air-conditioner performs an emergency stop, the reason why the emergency stop occurred is displayed by the flashing of
display lights. If the air-conditioner is operated using the remote control 3 minutes or more after the emergency stop, the trouble
display stops and the air-conditioner resumes operation. (1)

Indoor unit display panel Description Cause Display (flashing) condition

RUN TIMER of trouble
light light
• Broken heat exchanger sensor When a heat exchanger sensor wire disconnection is detected while operation is
1-time Heat exchanger wire, poor connector stopped. (If a temperature of –20ºC or lower is detected for 15 seconds, it is
ON connection judged that the wire is disconnected.)
flash sensor error
• Indoor PCB is faulty (Not displayed during operation.)

• Broken room temperature When a room temperature sensor wire disconnection is detected while operation
2-time Room sensor wire, poor connector is stopped. (If a temperature of –20ºC or lower is detected for 15 seconds, it is
ON temperature connection judged that the wire is disconnected.)
flash
sensor error • Indoor PCB is faulty (Not displayed during operation.)

5-time Active filter When the wrong voltage connected for the power source.
ON voltage error • Defective active filter When the outdoor PCB is faulty.
flash

When conditions for turning the indoor unit’s fan motor on exist during air-
6-time Indoor fan • Defective fan motor, poor
ON conditioner operation, an indoor unit fan motor speed of 300 min-1 or lower is
flash motor error connector connection
measured for 30 seconds or longer. (The air-conditioner stops.)

• Broken outdoor air temperature When an outdoor temperature sensor wire disconnection is detected while
Keeps 1-time Outdoor air sensor wire, poor connector operation is stopped. (If a temperature of –40ºC or lower is detected for 15
temperature connection
flashing flash seconds, it is judged that the wire is disconnected.)
sensor error • Outdoor PCB is faulty (The compressor is stopped.)

• Broken heat exchanger sensor When a sensor wire disconnection is detected while operation is stopped.
Keeps 2-time Outdoor heat wire, poor connector (If a temperature of –50ºC or lower is detected for 15 seconds, it is judged that
exchanger connection the wire is disconnected.)
flashing flash
sensor error • Outdoor PCB is faulty (The compressor is stopped.)

• Broken discharge pipe sensor When a compressor discharge pipe sensor wire disconnection is detected for
Keeps 4-time Discharge pipe wire, poor connector 15 seconds or longer (less than 7ºC) after the compressor command speed has
flashing flash sensor error connection continued at 0 rps or higher for 9 minutes.
• Outdoor PCB is faulty (The compressor is stopped.)

• Compressor locking, open The inverter output current (compressor motor current) exceeds the set value
1-time phase on compressor output, during compressor start.
ON Current Cut shortcircuit on power
flash (The air-conditioner stops.)
transistor, closed service valve

When there is an emergency stop caused by trouble in the outdoor unit, or the
2-time Trouble of • Broken compressor wire
ON outdoor unit • Compressor blockage input current value is found to be lower than the set value.
flash (The air-conditioner stops.)

• Overload operation
3-time Current safe When the compressor command speed is lower than the set value and the current
ON • Overcharge
flash stop safe has operated. (The compressor is stopped.)
• Compressor locking
When there is an emergency stop caused by trouble in the outdoor unit, or the
4-time Power transistor input current value is found to be lower than the set value continuously for 3
ON • Broken power transistor
flash error minutes or longer.
(The compressor is stopped.)

• Gas shortage, defective

5-time Over heat of When the value of the discharge pipe sensor exceeds the set value.
ON compressor
discharge pipe sensor, closed
(The air-conditioner stops.)
flash service valve

• Defective power source, When there is no signal between the indoor PCB and outdoor PCB for 10
6-time Error of signal seconds or longer (when the power is turned on), or when there is no signal for
ON Broken signal wire, defective
flash transmission indoor/outdoor PCB 1 minute 55 seconds or longer (during operation)(the compressor is stopped).

7-time Outdoor fan • Defective fan motor, poor When the outdoor unit’s fan motor sped continues for 30 seconds or longer at
ON motor error connector connection 75 min-1 or lower. (3 times) (The air-conditioner stops.)
flash

• Defective compressor If the compressor motor’s magnetic pole positions cannot be correctly detected
2-time 2-time when the compressor starts.
Rotor lock • Open phase on compressor
flash flash • Defective outdoor PCB (The air-conditioner stops.)

Notes (1) The air-conditioner cannot be restarted using the remote control for 3 minutes after operation stops.

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 '09•SRK-DB-087D
'16 • SRK-T-192

(6) Service mode (Trouble mode access function)

-

(a) Explanation of terms

Term Explanation
The service mode is the mode where service data are displayed by flashing of the display lights
Service mode
when the operations in item (b) below are performed with the indoor controller.
These are the contents of error displays and protective stops which occurred in the past in the air-
conditioner system. Error display contents and protective stop data from past anomalous
Service data operations of the air-conditioner system are saved in the indoor unit control’s non-volatile
memory (memory which is not erased when the power goes off). There are two types of data,
self-diagnosis data and stop data, described below.
These are the data which display the reason why a stop occurred when an error display(self-
diagnosis display) occurred in an indoor unit. Data are recorded for up to 5 previous occurrences.
Data which are older than the 5th previous occurrence are erased.
Self-diagnosis data In addition, data on the temperature of each sensor (room temperature, indoor heat exchanger,
outdoor heat exchanger, outdoor air temperature, discharge pipe), remote control information
(operation switching, fan speed switching) are recorded when trouble occurs, so more detailed
information can be checked.
These are the data which display the reason by a stop occurred when the air-conditioning system
performed protective stops, etc. in the past. Even if stop data alone are generated, the system
restarts automatically. (After executing the stop mode while the display is normal, the system
restarts automatically.) Data for up to 10 previous occasions are stored. Data older than the 10th
Stop data
previous occasion are erased.
( Important) In cases where transient stop data only are generated, the air-conditioner system
may still be normal. However, if the same protective stop occurs frequently (3 or
more times), it could lead to customer complaints.

(b) Service mode display procedure

wireless

35.)

34.)

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 '09•SRK-DB-087D
'16 • SRK-T-192

safe 43
4-time flash 3-time flash.
3 43 43 safe

wireless mode mode

(i) Self-diagnosis data

wireless

mode mode

Wireless remote control setting

Contents of output data
Operation mode Fan speed mode

wireless

Fan

Wireless remote control setting Indicates the number of

occasions previous to the present
Temperature setting the error display data are from.
21ºC 1 time previous (previous time)
22ºC 2 times previous
23ºC 3 times previous '09•SRK-DB-087D
24ºC 4 times previous
25ºC 5 times previous

Only for indoor heat exchanger sensor 2

(Example)

Wireless remoteremote
Wireless control setting Indicates the number of
control setting
occasions previous to the present
Temperature
Operation setting
Fan the error display data are from.
speed Temperature Displayed data
mode 26ºC mode 1 time previous (previous time)
setting
27ºC 2 times
21ºCprevious
Displays the reason for the stop (error code) the previous time an error was displayed.
28ºC 3 times
22ºCprevious
Displays the reason for the stop (error code) 2 times previous when an error was displayed.
Cooling 29ºC MED 4 times
23ºCprevious
Displays the reason for the stop (error code) 3 times previous when an error was displayed.
30ºC 5 times
24ºCprevious
Displays the reason for the stop (error code) 4 times previous when an error was displayed.
25ºC Displays the reason for the stop (error code) 5 times previous when an error was displayed.

(ii) Stop data

Wireless remote control setting
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Operation Fan speed Temperature Displayed data
modesearch engine
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 22ºC Displays the reason for the stop (error code) 2 times previous when an error was displayed.
Cooling MED 23ºC Displays the reason for the stop (error code) 3 times previous when an error was displayed.
24ºC Displays the reason for the stop (error code) 4 times previous when an error was displayed.
25ºC Displays the reason for the stop (error code) 5 times previous when'16 • SRK-T-192
an error was displayed.

(ii) Stop data

Wireless remote control setting
Operation Fan speed Temperature Displayed data
mode mode setting
21ºC Displays the reason for the stop (stop code) the previous time when the air-conditioner was stopped by protective stop control.
22ºC Displays the reason for the stop (stop code) 2 times previous when the air-conditioner was stopped by protective stop control.
23ºC Displays the reason for the stop (stop code) 3 times previous when the air-conditioner was stopped by protective stop control.
24ºC Displays the reason for the stop (stop code) 4 times previous when the air-conditioner was stopped by protective stop control.
25ºC Displays the reason for the stop (stop code) 5 times previous when the air-conditioner was stopped by protective stop control.
Cooling LO
26ºC Displays the reason for the stop (stop code) 6 times previous when the air-conditioner was stopped by protective stop control.
27ºC Displays the reason for the stop (stop code) 7 times previous when the air-conditioner was stopped by protective stop control.
28ºC Displays the reason for the stop (stop code) 8 times previous when the air-conditioner was stopped by protective stop control.
29ºC Displays the reason for the stop (stop code) 9 times previous when the air-conditioner was stopped by protective stop control.
30ºC Displays the reason for the stop (stop code) 10 times previous when the air-conditioner was stopped by protective stop control.

(c) Error code, stop code table (Assignment of error codes and stop codes is done in common for all models.)

Number of flashes
when in service mode Stop code Error content Error Auto
RUN TIMER or Cause Occurrence conditions display recovery
light light Error code
(10’s digit) (1’s digit) Major category Minor category
OFF OFF 0 Normal - - - - -
Compressor lock
1-time Compressor wiring short circuit Compressor start fails 42 times in succession and the
11 Compressor software start
flash Compressor output is open phase reason for the final failure is current cut. (2 times)
Outdoor PCB is faulty
Service valve closed
2-time After the compressor starts, it stops due to current cut at
flash
12 Lower than 20 rps Compressor output is open phase.
less than 20 rps. -
Electronic expansion valve is faulty.
Service valve is closed.
3-time Compressor output is open phase. When operation is stopped by current cut at 20 rps or
13 20 rps or higher
Compressor is faulty. higher.
-
flash
1-time Current Electronic expansion valve is faulty.
flash Cut
4-time Outdoor PCB is defective.
14 Excessive voltage When the DC voltage exceeds 390V. -
flash Power source is abnormal.
5-time Short circuit in the power Outdoor PCB is faulty.
. When it is judged that the power transistor was damaged
15 -
flash transistor (high side) Power transistor is damaged. at the time the compressor started.
6-time Current cut circuit Outdoor PCB is faulty. When it is judged that the power transistor was damaged
16
breakdown Power transistor is damaged. at the time the compressor started.
-
flash
Service valve is closed.
7-time Compressor output is open phase. When the compressor has stopped with the current cut
17 Software current cut Compressor is faulty.
flash after starting it
Electronic expansion valve is faulty.

2-time Compressor wiring is Compressor wiring is disconnected. When the curent is 1A or less the time the compressor
22
unconnection voltage drop Outdoor PCB is faulty. started.
-
flash
Outdoor
unit Service valve is closed.
When an abnormal stop occurs 3 times with automatic
3-time error Abnormal stop 3 times in Compressor output is open phase.
flash
23
20 minutes. Electronic expansion valve is faulty.
recovery within 20 minutes after the outdoor unit’s power -
source was turned on.
Refrigerant is insufficient.
2-time
flash Outdoor fan motor is faulty.
7-time Outdoor unit’s fan motor When a fan speed of 75 min-1 or lower continues for 30
27 Connector connections are poor.
flash is abnormal seconds or longer. (3 times)
Outdoor PCB is faulty.
Outdoor
8-time fan motor Power source construction
28 error Input of abnormal voltage is faulty. When an error voltage of 150 V or less is input
flash
9-time Power source construction is defective.
29 Voltage drop Outdoor PCB is faulty. When the power source voltage drops during operation. -
flash
1-time Overcharge When there is a current safe stop in current safe I mode
flash
31 Cooling current safe I
Compressor lock during cooling operation.
-
3-time 3-time Current Overcharge When there is a current safe stop in current safe II mode
flash
33
safe
Cooling current safe II
Compressor lock during cooling operation.
-
flash
5-time Overcharge When there is a current safe stop in current safe III mode
35 Cooling current safe III Compressor lock during cooling operation.
-
flash

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 '16 • SRK-T-192

Number of flashes
when in service mode Stop code Error content Error Auto
RUN TIMER or Cause Occurrence conditions
display recovery
light light Error code
(10’s digit) (1’s digit) Major category Minor category

Cooling overload 1 Overcharge

1-time When there is a current safe stop in overload 1 mode -
41 (outdoor temperature: Compressor lock
flash during cooling operation.
36~40ºC) Overload operation
Cooling overload 2 Overcharge
4-time 3-time Current Compressor lock When there is a current safe stop in overload 2 mode -
43 (outdoor temperature:
flash flash safe Overload operation during cooling operation.
40~45ºC)
Cooling overload 3 Overcharge
5-time When there is a current safe stop in overload 3 mode
45 (outdoor temperature: Compressor lock
during cooling operation.
-
flash 45ºC~) Overload operation
Refrigerant is insufficient.
5-time Compressor
OFF 50 110ºC Discharge pipe sensor is faulty. When the discharge pipe sensor’s value exceeds the set
flash overheat value. (2 times)
Service valve is closed.

Can’t receive signals for 1 Power source is faulty. When 1 minute 55 seconds passes without
OFF 60 minute 55 seconds (if Power source cables and signal lines are improperly wired. communications signals from either the outdoor unit or -
communications have recovered) Indoor or outdoor PCB is faulty. the indoor unit being detected correctly.
6-time Serial signal
1-time transmission Connection lines between the Connection lines between the indoor and When 10 seconds passes after the power is turned on without communications
flash
flash
61 error outdoor units are faulty.
signals from the indoor or outdoor unit being detected correctly.
-
indoor and outdoor units are faulty. Indoor or outdoor PCB are faulty.
2-time Indoor or outdoor PCB are faulty. When 1 minute 55 seconds passes without communications signals
62 Serial transmission error.
flash Noise is causing faulty operation. from either the outdoor unit or the indoor unit being detected correctly. (3 times)
Compressor is faulty.
Compressor output is open phase.
After the compressor starts, when the compressor stops
OFF 70 Rotor lock Rotor lock Electronic expansion valve is faulty.
due to rotor lock. (2 times)
Overload operation.
7-time Outdoor PCB is faulty
flash
Compressor is faulty
Compressor software start
6-time Compressor wiring is disconnected. When compressor start fails 42 times in succession and
76 (within 4 seconds after
flash Compressor wiring is short circuited. the reason for the final failure is rotor lock. (2 times)
phase switching)
Outdoor PCB is faulty.

Fan motor is faulty. When the indoor unit’s fan motor is detected to be
Indoor unit fan motor is
OFF 80 Connector connections are poor. running at 300 min-1 or lower speed with the fan motor in -
abnormal.
Indoor PCB is faulty. the ON condition while the air-conditioner is running.
Discharge pipe sensor wire is When a disconnection signal is sent for 15 seconds or longer as the
1-time Discharge pipe sensor is
81 discharge pipe sensor data after the outdoor unit’s speed is 0 rps or
flash abnormal (anomalous stop). disconnected. (4 times)
Connector connections are poor. higher continuously for 9 minutes.
2-time Indoor heat exchanger sensor Indoor heat exchanger sensor wire is When a temperature of -20ºC or lower is sensed continuously
flash
82 disconnected. -
is abnormal (anomalous stop). Connector connections are poor. for 40 minutes during heating operation (the compressor stops).
3-time Protective Outdoor heat exchanger sensor is Outdoor heat exchanger sensor wire
8-time 83 is disconnected. When a temperature of -55ºC or lower is sensed continuously -
flash control abnormal (anomalous stop). Connector connections are poor. for 40 minutes during heating operation (the compressor stops).
flash
operation
4-time High humidity condition. -
84 Anti-condensation control Anti-condensation prevention control is operating.
flash Humidity sensor is faulty.
5-time Indoor unit fan speed drops. When the anti-frost control operates and the compressor -
85 Anti-frost control
flash Indoor heat exchanger sensor short circuit stops during cooling operation.
Refrigerant is insufficient. When compressor overheating protective control operates
7-time Compressor overheating Discharge pipe sensor is faulty. and the compressor stops. -
87
flash protection control Service valve is closed.
8-time Refrigeration cycle system Service valve is closed. When refrigeration cycle system protective control
88 protective control
-
flash Refrigerant is insufficient. operates.

- 36 -

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 '09•SRK-DB-087D
'16 • SRK-T-192

safe 3
4-time flash 3-time flash.
3 3 3 safe

(d) Operation mode, Fan speed mode information tables

(i) mode (ii) mode

Display pattern when Display pattern when

in service mode Fan speed
in service mode Operation mode mode when
when there is an there is an
RUN light abnormal stop TIMER light abnormal stop
(10’s digit) (1’s digit)
- AUTO - AUTO
1-time flash DRY 2-time flash HI
2-time flash COOL 3-time flash MED
3-time flash FAN 4-time flash LO
6-time flash HI POWER
7-time flash ECONO

operation mode and fan speed mode

becomes as follows.

Mode
Operation mode AUTO
Fan speed mode AUTO

mode: COOL, Fan mode: HI

1.5 sec.
ON
RUN light
(10’s digit)
OFF
0.5 sec. 0.5 sec.
ON
TIMER light
(1’s digit)
OFF
11-second interval

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 '09•SRK-DB-087D
'16 • SRK-T-192

(e) Temperatare information

(i) Room temperature sensor, indoor heat exchanger sensor, outdoor air temperature sensor, outdoor heat
exchanger sensor temperature
Unit: °C
TIMER light
(1’s digit)
RUN light
(10’s digit) 0 1 2 3 4 5 6 7 8 9
Buzzer sound

6 -60 -61 -62 -63 -64

5 -50 -51 -52 -53 -54 -55 -56 -57 -58 -59
4 -40 -41 -42 -43 -44 -45 -46 -47 -48 -49
Yes
(sounds for 0.1 second) 3 -30 -31 -32 -33 -34 -35 -36 -37 -38 -39
2 -20 -21 -22 -23 -24 -25 -26 -27 -28 -29
1 -10 -11 -12 -13 -14 -15 -16 -17 -18 -19
0 -1 -2 -3 -4 -5 -6 -7 -8 -9
0 0 1 2 3 4 5 6 7 8 9
1 10 11 12 13 14 15 16 17 18 19
2 20 21 22 23 24 25 26 27 28 29
3 30 31 32 33 34 35 36 37 38 39
No 4 40 41 42 43 44 45 46 47 48 49
(does not sound) 5 50 51 52 53 54 55 56 57 58 59
6 60 61 62 63 64 65 66 67 68 69
7 70 71 72 73 74 75 76 77 78 79
8 80 81 82 83 84 85 86 87 88 89
9 90 91 92 93 94 95 96 97 98 99

temperature information

Sensor name Sensor value displayed when the error code is normal
Room temperature sensor -64ºC
Indoor heat exchanger sensor -64ºC
Outdoor air temperature sensor -64ºC
Outdoor heat exchanger sensor -64ºC

O temperature data

0.1 sec.
ON If the temperature is < 0, the buzzer sounds.
Buzzer sound If the temperature is 0, the buzzer does not sound.
OFF

1.5 sec.
ON
RUN light
(10’s digit)
OFF
0.5 sec. 0.5 sec.
ON
TIMER light
(1’s digit)
OFF
11-second interval

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 '09•SRK-DB-087D
'16 • SRK-T-192

(ii) Discharge pipe sensor temperature

Unit: °C
TIMER light
(1’s digit)
RUN light
(10’s digit) 0 1 2 3 4 5 6 7 8 9

Buzzer sound

3 -60 -62 -64

Yes 2 -40 -42 -44 -46 -48 -50 -52 -54 -56 -58
(sounds for 0.1 second) 1 -20 -22 -24 -26 -28 -30 -32 -34 -36 -38
0 -2 -4 -6 -8 -10 -12 -14 -16 -18
0 0 2 4 6 8 10 12 14 16 18
1 20 22 24 26 28 30 32 34 36 38
2 40 42 44 46 48 50 52 54 56 58
No 3 60 62 64 66 68 70 72 74 76 78
(does not sound)
4 80 82 84 86 88 90 92 94 96 98
5 100 102 104 106 108 110 112 114 116 118
6 120 122 124 126 128 130 132 134 136 138
7 140 142 144 146 148 150

temperature information

Sensor value displayed when the error code is normal

-64ºC

data

0.1 sec.
ON If the temperature is < 0, the buzzer sounds.
Buzzer sound If the temperature is 0, the buzzer does not sound.
OFF

1.5 sec.
ON
RUN light
(10’s digit)
OFF
0.5 sec. 0.5 sec.
ON
TIMER light
(1’s digit)
OFF
11-second interval

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 '09•SRK-DB-087D
'16 • SRK-T-192

Service data record form

Wireless r
Operation mode Fan speed mode

Wireless r

Wireless r

Wireless r

Wireless r

Wireless r

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 '09•SRK-DB-087D
'16 • SRK-T-192

(7) Inspection procedures corresponding to detail of trouble

Sensor error Broken sensor wire,

connector poor connection

Discharge pipe sensor temperature characteristics Sensor temperature characteristics (Room

temp., indoor heat exchanger temp., out-
door heat exchanger temp., outdoor air
temp.)

180 30
160
25
140
Resistance (k )

Resistance (k )
120 20
100
15
80
60 10
40
5
20
0 -10 0 10 20 30 40 50 60 70
0 20 40 60 80 100 120 135
Temperature (˚C) Temperature (˚C)

Indoor fan motor error Defective fan motor, connector poor

connection, defective indoor PCB

46 for the fan motor and indoor PCB check pro-

Power source reset

Replace fan motor. (If the

error persists after replacing
Is it normalized?
the fan motor, replace the
indoor PCB.)

Malfunction by temporary noise

- 41 -

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 '09•SRK-DB-087D
'16 • SRK-T-192

Current cut Compressor lock, Compressor wiring short circuit, Compressor output is open phase,
Outdoor PCB is faulty, Service valve is closed, EEV is faulty, Compressor faulty.

49

1.417Ω (U-V), 1.392Ω (V-W), 1.435Ω (W-U) or more at 20ºC

Current safe stop Overload operation, compressor

lock, overcharge

Inspect outdoor air temperature sensor

- 42 -

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 '09•SRK-DB-087D
'16 • SRK-T-192

Over heat of compressor Gas shortage, defective discharge

pipe sensor

41)

Error of signal transmission Wiring error including power cable, defective indoor/
outdoor PCB

source

-
-

-
-

- 43 -

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 '09•SRK-DB-087D
'16 • SRK-T-192

Trouble of outdoor unit Insufficient refregerant amount, Faulty power transistor, Broken compressor wire
Service valve close, Defective EEV, Defective outdoor PCB

source source

AC AC -
AC AC -
AC AC -

(1)

(2)

(3)
Notes (1) 49

wire

Outdoor fan motor error Defective fan motor, connector poor

connection, defective outdoor PCB

the fan motor and outdoor

Replace outdoor fan motor

ourdoor PCB

See pages 49 for the fan motor and outdoor PCB check pro-
outdoor
After making sure the fan motor and outdoor PCB are nor-

Power source reset

Replace fan motor. (If the

error persists after replacing
Is it normalized?
the fan motor, replace the
outdoor PCB.)

Malfunction by temporary noise

- 44 -

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 '16 • SRK-T-192

Rotor lock Defective compressor, defective

outdoor PCB

See page 42.

(8) Phenomenon observed after shortcircuit, wire breakage on sensor

(a) Indoor unit
(8) Phenomenon observed after shortcircuit, wire breakage onPhenomenon
sensor
Sensor
(a) Indoor unit Shortcircuit Disconnected wire
Room temperature
Operation Phenomenon
Sensor
sensor mode Shortcircuit Disconnected wire
Cooling
Heat exchanger
Room temperature
Freezing cycle system protection trips and stops the compressor.
sensor sensor Heating
Humidity sensor
Heat exchanger Cooling
sensor
Heating
Humidity sensor operation
Cooling
Humidity sensor
Failure (1)
mode Control input circuit reading Air-conditioning system operation
Heating

Humidity sensor operation

circuit

'09•SRK-DB-087D
Failure mode Control input circuit resding Air conditioning system operation '09•SRK-DB-087D

(b) Outdoor unit

(b) Outdoor unit Phenomenon
Sensor
Operation Short circuit Phenomenon Disconnected wire
Sensor
mode Shortcircuit Disconnected wire
Heat exchanger
Compressor stop.
sensor
Heat exchanger Cooling
sensor Heating
Ourdoor air The compressor cannot pick up its speed owing to the current Defrosting is performed for 10 minutes at approx. 35 minutes.
temperature sensor safe so that the designed capacity is not achieved.
Cooling
Ourdoor air
temperatureDischarge pipe
sensor Heating Defrosting is performed for 10 minutes at approx. 35 minutes.
sensor
Discharge pipe
All modes
sensor
(9) Checking the indoor electrical equipment
(9) (a)
Checking the
Indoor indoor
PCB electrical
check equipment
procedure
(a) Indoor PCB check procedure
Is there voltage between terminal NO Inspect power source
blocks and ? (AC220/230/240 for outdoor unit.
Is there
V) voltage between terminal NO Inspect power source
blocks and ? (AC 220/230/240 for outdoor unit.
V) YES
YES
NO
Is the fuse burnt out? (3.15 A) Replace fuse.
YES
Is the fuse burnt out? (3.15 A) Replace fuse.
YES
NO

Is the voltage between terminal NO

blocks and oscillating between Replace indoor PCB.
Is the
DC 0 andvoltage
20V? between terminal NO
blocks and oscillating between Replace indoor PCB.
DC 0 and 20V? YES
YES
Indoor electrical components
are normal.
Indoor electrical components
are normal.
(b) Indoor unit fan motor check procedure
(b) Indoor unit fan motor check procedure
1) Indoor PCB output check - 45 -
1) Indoor PCB output check

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 blocks and oscillating between Replace indoor PCB.
DC 0 and 20V?

YES

'16 • SRK-T-192
Indoor electrical components
are normal.

(b) Indoor unit fan motor check procedure

1) Indoor PCB output check

DC several V (–)
(4-6 V) GND DC 308-336V
Measuring Voltage range when
DC15V point normal

CNU Indoor PCB

Yellow

White

Black
Blue

Red

FMI

2) Fan motor resistance check

Measuring point Resistance when normal
M
k

- 46 -

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 Operation SW ON Measure in this section

'16 • SRK-T-192

(10) How to make sure of wireless remote control

wireless wireless

wireless

wireless

wireless
wireless

Simplified check methd of wireless remote control

It is normal if the signal transmission section of the wireless remote
control emits a whitish light at each transmission on the monitor of
digital camera.

(11) Inspection procedure for blown fuse on the indoor and outdoor PCB

Is the fuse blown on the indoor and NO Go to the inspection procedure for electric
outdoor PCB? equipment of indoor and outdoor units
(See pages 45 to 49.)

( )
Faulty part, other than YES
fan motor YES Is there any faulty part (fan motor, etc)? NO
Replace the fuse, and check the operation.
(See pages 45 to 49.)

Replace the faulty part and the YES (Fan motor is faulty.)
fuse. Test-run then the unit for Is there any damage on the internal circuit
checking. of fan motor?
Check the resistance value to judge.
(See pages 46 to 49.)

Replace the fuse on the indoor and

outdoor PCB. When the operation is NO
Replace the fan motor, and check the operation.
checked without connecting the fan
motor connector, does the fuse blow?

YES
Replace the indoor and outdoor PCB and the fan motor. Check then the operation.

- 47 -

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 ◆ Check point of outdoor unit

CAUTION- HIGH VOLTAGE

High voltage is produced in the control box. Don't touch
electrical parts in the control box for 5 minutes after the
unit is stopped.

Color symbol
Mark Color
Model SRK18YLV-S1

BK Black ◆Inspection power transistor

OR Orange R Remove the fasten terminal and test output voltage

RD Red

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（YE）
（OR）
WH White
(11) Outdoor unit inspection points

YE Yellow TERMINAL
PWB ASSY（SUB） PWB ASSY（MAIN）
BLOCK

T1
T2
Y／G Yellow／Green
TB POWER TRANSISTOR
FUSE R IN F8
（BK） （BK） F2
L 1 RO P U （RD）
250V 20A （BK） R U
250V 20A 250V 20A
Power source （WH） S IN ACTIVE
N 2 FILTER
+++ NU V （WH） M
SO V
1 Phase （WH） S UNIT
NV W （BK）
3～
220V 50Hz 3 NW W
S-1 CM
（WH） S-2
（YG）

-
G1
（YG）

48 -
F3 250V 1A
F1

M
250V 2A

（RD） C-2 CNFFAN

SWITCHING POWER FMo
CIRCUIT

CNTH CNEEV

2 2 2

t゜ t゜ t゜
M ◆Inspection of outdoor fan motor
◆Power source and serial signal inspection See page 49.
1 to 2 : AC 220V EEV
TH1 TH2 TH3
2 to 3 : Normal if the voltage oscillates between DC 0 and approx. 20V

◆Inspection of electronic expansion valve

See page 49.

◆Inspection of resistance value of sensor

Remove the connector and check the resistance value.
See the section of sensor characteristics on page 41.
'16 • SRK-T-192
 '09•SRK-DB-087D
'16 • SRK-T-192

(a) Inspection of electronic expansion valve

(i)
(ii)

6 5 4 3 2 1
DC
White

Yellow

Orange

Blue

Red
(iii)
(iv)

• Inspection of electronic expansion valve as a separate unit

Measuring point Resistance when normal

(b) Outdoor unit fan motor check procedure

(i)
1)
2)
3) source

FM0

Measuring Voltage range when

point normal
280-373V
Orange
Red

Brown

White
Blue

CNFAN Outdoor PCB

DC several (4-7V)
DC280-373V GND
DC15V

(ii) Fan motor resistance check

Measuring point Resistance when normal
Blue
Blue k

- 49 -

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 '16 • SRK-T-192

- 50 -

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 '16 • SRK-T-192

PARTS LIST

INDOOR UNIT
SRK18YLV-S1

OUTDOOR UNIT
SRC18YLV-S1

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 '16 • SRK-T-192

PANEL & FAN ASSY

33
28

31 30

34
35 29
4 32
5 27 26
7
35 12
3
4 6 12
10
10
21
18 23
22 16 13
25 20
14 11
21 19
14 15
22
9 17
3 14 22
24
8
2
CRAE0229

- 52 -

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 '16 • SRK-T-192

SRK18YLV-S1 CRAE0229

END ITEM NO. : RMA002F016AC

Recommendable Purchased Q'ty
No. Part No. Part Name RE.Q Note
10 30 50 100 500 1000
1㹼6 RMA102A100C PANEL ASSY,FRONT 1 1 1 1 2
1 RKX122A300N PANEL,FRONT 1
2 RMA435A100B PANEL,AIR INLET 1 1 1 2 3
3 RKX437A300 FILTER,AIR 2 1 1 1 2 W315.5×H299.7(t2)
4 RKX129A013 CAP 2
5 RKX129A014 HOLDER,FILTER 2 1 1 1 2
6 RKX133A300 PLATE,ORNAMENT 1 1 1 1 2
7㹼27 RKX435A302H GRILLE ASSY,AIR OUT 1 1 1 2 3
7 RKX435A303A GRILLE,AIR OUTLET 1
8 RKX436A001 FLAP(A) 1 UPPER
9 RKX436A002 FLAP(B) 1 LOWER
10࣭11 RKX436A003B LOUVER ASSY(R) 1 1 1 2 2
10 RKX436A005B LOUVER 6
11 RKX129A008A PLATE,CONNECTING(R) 1
12࣭13 RKX436A004B LOUVER ASSY(L) 1 1 1 2 2
12 RKX436A005B LOUVER 6
13 RKX129A009A PLATE,CONNECTING(L) 1
14 RKW935C200 COLLAR 6
15 RKX129A010 BRACKET,MOTOR(A) 1 1 1 1 2
16 RKX129A011 BRACKET,MOTOR(B) 1 1 1 1 2
17 RKX129A012 BRACKET,MOTOR(C) 1 1 1 1 2
18 RKX144A001 LINK 1 1 1 1 2
19 RKX144A002 CRANK(A) 1 1 1 1 2
20 RKX144A003 CRANK(B) 1 1 1 1 2
21 RKW144A204 CRANK(C) 2 1 1 1 2
22 SSA512T096 MOTOR,STEPPING 3 1 1 1 2
23 RKS504A100G HARNESS ASSY 1 1 1 1 2 FOR FLAP MOTOR
24 RKS504A100 HARNESS ASSY 1 1 1 1 2 FOR RIGHT LOUVER MOTOR
25 RKS504A100L HARNESS ASSY 1 1 1 1 2 FOR LEFT LOUVER MOTOR
26 SSA423A102 HOSE,DRAIN 1
27 SSA326A047 PLUG 1
28 RKX111A001 BASE ASSY 1 1 1 1 2
29 SSA512T127 MOTOR,DC 1 1 1 1 2 FOR IMPELLER
30 SSA431G046A IMPELLER 1 1 1 2 4
31 SSA923C114 BEARING,PLANE 1 1 1 1 2
32 RKX129A005 COVER(MOTOR) 1 1 1 1 2
33 RKX032A001 PLATE,INSTALLATION 1 1 1 1 2
34 RKX132A001A LID 1 1 1 2 4
35 SSA913A007A SCREW,TAP 2 4×14

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 '16 • SRK-T-192

HEAT EXCH. & CONTROL

4
7
8 6
5

17

18 3
1 20
25 2

21 13
16 15

24
9
12
11
19
22
23 10 14

CRAE0254

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 '16 • SRK-T-192

SRK18YLV-S1 CRAE0254

END ITEM NO. : RMA002F016AC

Recommendable Purchased Q'ty
No. Part No. Part Name RE.Q Note
10 30 50 100 500 1000
1㹼8 RKX301A011P HEAT EXCH ASSY(AIR) 1 1 1 1 2
2 RKX315D007 HEADER ASSY 1
3 RKX321A038 PIPE 1
4 RKX129A016 BRACKET ASSY(L) 1
5㹼7 RKX321A001B PIPE ASSY 1
6 SSA323F088B UNION(SLD) 1 FOR GAS
7 SSA323F091A UNION(SLD) 1 FOR LIQ.
8 RKX129A001G PLATE ASSY,BAFFLE 1 1 1 1 2
9 RKX142A001A BOX,CONTROL 1
10㹼12 RKX505A500JG PWB ASSY 1 2 2 4 8
11 SSA555B058AD VARISTOR 1 1 1 1 2Z
12 SSA564A132 FUSE(CURRENT) 1 1 1 2 4 F 3A
13 SSA551A163L SENSOR ASSY 1 1 1 2 4 INCL.SENSOR(ROOM TEMP.& HEAT EXCH.)

14 SSA561B702B BLOCK,TERMINAL 1 1 1 2 2T
15 RKX011G603A LABEL,WIRING 1
16 SSA551B017 SENSOR(HUMIDITY) 1 1 1 2 4
17 RKX503A301 DISPLAY ASSY 1 1 1 2 3
18 RKX505A007 PWB ASSY(DISPLAY) 1 2 2 4 8
19 RKJ941F001A SPRING,LEAF 1
20 RKX502A001 CONTROL ASSY,REMOTE 1 2 3 5 10
21 RMA008A011D PARTS,STANDARD 1
22 RMA012A032B MANUAL,INSTRUCTION 1
23 RKT437A011 FILTER,CLEAN 1 2 2 4 8
24 RKT437A005 FILTER,LIGHT CLEAN 1 2 2 4 8
25 RKN032A002C HOLDER(REMO-CON) 1 1 1 1 2
(26) RMA011F013V LABEL,MODEL NAME 1

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 '16 • SRK-T-192

PANEL & FAN ASSY

3

18 11

13

12 8
15
6
14

10

16 17

8
7

4
2
1 9

5
8
CRBE0294

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 '16 • SRK-T-192

SRC18YLV-S1 CRBE0294

END ITEM NO. : RMC003F022Z

Recommendable Purchased Q'ty
No. Part No. Part Name RE.Q Note
10 30 50 100 500 1000
1 RCV122A005 PANEL,FRONT 1 1 1 1 2
2 RCV123A005B PANEL,SIDE(R) 1 1 1 1 2
3 RCV124A003 PANEL,TOP 1 1 1 1 2
4 RCV132A004 COVER ASSY,SERVICE 1 1 1 2 4
5 RCV435A001A GRILLE,AIR OUTLET 1 1 1 2 3
6 SSA944B036B HANDLE 1
7 RCV142A001 COVER(TB) 1
8 SSA913A034F SCREW,TAP 26 4×8
9 SSA913A034G SCREW,TAP 1 4×12
10 SSA913A008F SCREW,TAP 1 4×10
11 RCV116A006 BRACKET ASSY 1
12 SSA512T094 MOTOR,DC 1 2 2 4 8
13 RCV116A003 BRACKET,MOTOR(U) 1
14 RCV141A002D PLATE,BAFFLE 1
15 SSA431B253 PROPELLER 1 1 1 2 4
16 SSA914B007AC NUT,TH 1
17 RCV111A001 BASE ASSY 1 1 1 1 2
18 W011D04X008 TAP-SCREW,CRS-TRS2 6 FOR BRACKET MOTOR

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 '16 • SRK-T-192

HEAT EXCH. & CONTROL

1

8
7
2

3 4
16
15
25
14 5
(LIQ.)
17 19 6
11 (GAS)

28 23 10

12
13

18 21 22

24
23・26
23・27 20
CONTROL ASSY CRBE0342

- 58 -

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 '16 • SRK-T-192

SRC18YLV-S1 CRBE0342

END ITEM NO. : RMC003F022Z

Recommendable Purchased Q'ty
No. Part No. Part Name RE.Q Note
10 30 50 100 500 1000
1 RCV301A204A HEAT EXCH ASSY(AIR) 1 1 1 1 2
2䡚3 RCV304A205 PIPING ASSY(EXPAN) 1
2 SSA387F051 VALVE,BODY(EXP) 1 EEV
3 RCV315B202A CAPILLARY 1 ȭ2.6×ȭ4.0 L300
4 RCS116A004 BRACKET,VALVE 1
5 RCS381A004B VALVE,SERVICE(1/4") 1 1 1 1 2 LIQ.
6 RCV381A002 VALVE,SERVICE(1/2") 1 1 1 1 2 GAS
7 RMC325A001 PIPE,SHELL 1
8 SSA382F210AY COIL,SOLENOID 1 FOR EEV
9 RCV154D002 INSULATION,COMP 1
10 RCV154D003 INSULATION,COMP 1
11 RSA201A036 COMPRESSOR ASSY 1 1 2 3 8
12 SSA914C013A NUT,FLANGE 2
13 SSA941C346A CUSHION,RUBBER 3
14 RSA932C004 GASKET,COVER 1
15 RSA947K005 COVER,TERMINAL 1 1 1 2 4
16 SSA914C016 NUT,FLANGE 1
17 RCT505A005RA PWB ASSY(MAIN) 1 2 2 4 8
18 RCT505A004C PWB ASSY(SUB) 1 2 2 4 8
19 RMC011G008A LABEL,WIRING 1
20 SSA561B723 BLOCK,TERMINAL 1 1 1 2 2
21 SSA564A136A FUSE(CURRENT) 1 1 1 2 4 F 20A
22 SSA564B088 HOLDER,FUSE 1
23 SSA551A216L SENSOR ASSY 1 1 1 2 4
24 RCV504A001 WIRING ASSY 1 1 1 1 2 FOR COMP.
25 SSA554B113 REACTOR 1
26 RKF941F002 SPRING,LEAF 1 FOR DEFROST SENSOR
27 RCJ941F001 SPRING,LEAF 1 FOR DISCHARGE PIPE SENSOR

28 RCV129A001A HOLDER,SENSOR 1
(29) RMC011F016Y LABEL,MODEL NAME 1

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 RESIDENTIAL AIR-CONDITIONING
TECHNICAL MANUAL & PARTS LIST

Because of our policy of continuous improvement, we reserve the right to make changes in all specifications without notice.
C Copyright MITSUBISHI HEAVY INDUSTRIES, LTD.

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