LG S4-W12JA1ZD User manual

Room Air Conditioner
MODEL : S4-W12JA1ZD.EC6GERU (B12TS.SSJ)
CAUTION
Before Servicing the unit, read the safety precautions in General SVC manual.
Only for authorized service personnel.
CONFIDENTIAL
SVC MANUAL (Exploded View)
Copyright © 2018 LG Electronics Inc. All rights reserved. Only training and service purposes.

Note
• – : No Relation
• For Circuit Breaker Rating, please conform to local standards whenever necessary.
• Exterior color code is approximate value.
• It is difficult to measure air flow rate of sleep because of small values.
• Maximum heating capacity is for heating operation without any frost.
• Fan motor speed could vary ±20 rpm according to the operating conditions.
• It may cause reliability, performance, noise, and vibration problem, unless meeting the range of connecting pipe length.
Keep the minimum piping length by making loops, although indoor unit and outdoor unit are close.
• This product contains fluorinated greenhouse gases.
• Some specifications may be changed without notifications due to our policy of innovation.
Copyright © 2017 LG Electronics Inc. All rights
reserved. Only training and service purposes.
kW0.88 3.523.87
B12TS.SSJ (B12TS.NSJ / B12TS.UA3)
S4-W12JA1ZD (S4NW12JA1ZD / S4UW12JA1ZD)
Buyer Model
Factory Model
Btu/h3,000 12,000 13,200
kJ/h- - -
kW - - -
Btu/h- - -
kW0.88 3.524.04
Btu/h3,000 12,000 13,800
kJ/h- - -
Heating -7 °C Max kW
Cooling Min ~ Rated ~ Max W 1401,085 1,400
Cooling (T3) Min ~ Rated ~ Max W - - -
Heating Min ~ Rated ~ Max W 140975 1,550
Cooling Min ~ Rated ~ Max A0.705.00 6.50
Cooling (T3) Min ~ Rated ~ Max A - - -
Heating Min ~ Rated ~ Max A0.704.807.50
W/W
(Btu/h)/W
(kJ/h)/W
W/W
(Btu/h)/W
-
W/W
(Btu/h)/W
(kJ/h)/W
-
Cooling / Heating -
Cooling / Heating kWh/year
Ø, V, Hz
V
Cooling / Heating %
l/h
Cooling, Max / H / M / L㎥/min
Heating, Max / H / M / L
㎥
/min
Cooling, Max / H / M / L / SLdB(A)
Heating, Max / H / M / LdB(A)
dB(A)
Net m m
Shipping m m
Net kg
Shipping kg
-
Air Flow Rate Max ㎥/min
Cooling, Min ~ Max rpm
Heating, Min ~ Max rpm
Cooling, Rated dB(A)
Heating, Rated dB(A)
dB(A)
Net m m
Shipping m m
Net kg
Shipping kg
A
-
Cooling ℃ DB
Heating
℃
DB
Heating ℃ WB
A
No. ×
㎟
-
No. × ㎟
Liquid m m
Gas mm
Connections Method Indoor / Outdoor -
O.D, I.D mm
Min / Standard / Max m
No Charge m
m
-
Type -
Pre Charge g
Additional Charge g/m
Control -
Global Warning Potential -
t-CO₂ eq -
-
Indoor / Outdoor -
-
-
-
-
cc
-
-
-
W
-
-
W
-
-
Material, Tube / Fin -
(ø x Row x Column x FPI/FPDM x L) x Qty.
#1
(ø x Row x Column x FPI/FPDM x L) x Qty.
#2
(ø x Row x Column x FPI/FPDM x L) x Qty.
#3
(ø x Row x Column x FPI/FPDM x L) x Qty.
#4
Corrosion Protection -
Fin Type -
Material, Tube / Fin -
(ø x Row x Column x FPI/FPDM x L) x Qty.
#1
(ø x Row x Column x FPI/FPDM x L) x Qty.
#2
Corrosion Protection -
Fin Type -
-
-
Between Indoor
& Outdoor
Piping Connection Heat Insulation Both liquid and gas pipes
Evaporator
Condens er
Heat Exchanger Slit
Louver
-5 ~ 24
-
20
Munsell 9.54Y 8.34/1.31 (RAL 9001)
15
3 × 1
Outdoor
4 × 0.75
ø 6.35
ø 9.52
Flared / Flared
-
Propeller Fan
AC
25
Class E
TEAO / IP43
Cu / Al
(ø7 x 2 x 15 x 21FPI x 618) x 1
PCM
Cu / Al
-
-
-
R410A
850
20
Capillary
-
SJ / UA3
-
3.24
11.06
-
-
17.50
3.61
12.31
-
- / -
- / -
1,220~240,50
187 ~ 276
96 / 97
12.5 / 9.3 / 7.2 / 2.7
13 / 10 / 7 / 5.5
42 / 36 / 28 / 21
42 / 36 / 31
-
836.5 × 308 × 192.6
909 × 383 × 256
8.5
10.7
26.4
28.2
Running Current
Power Input
Indoor
Exterior Color Code
Sound Power Level
Fan Motor Speed
EER
Capacity
Set (Indoor / Outdoor) Unit
Cooling (T3) Min ~ Rated ~ Max
Cooling Min ~ Rated ~ Max
Heating Min ~ Rated ~ Max
EER (T3)
-
Annual Energy Consumption
Power Supply
Available Voltage Range
Power Factor
0.80
COP
Dimensions (W × H × D)
Air Flow Rate
Sound Pres s ure Level
Munsell 7.5PB 0.2/20 (RAL 9005)
27.0
51
53
-
717 × 483 × 230
837 × 530.5 × 332
Oil Charge
Motor Output
Type
Exterior Color Code
Weight
Sound Pres s ure Level
Circuit Breaker
Power and Com m unication Cable
Power Supply to Unit
Outdoor
Fan(Outdoor)
Type
Max. Fus e Size
Com press or
Dimensions (W × H × D)
Oil Type / Maker
Motor Insulation
Motor Type
18 ~ 48
-5 ~ 18
Type
Model
Operation Range
Defrost Method
Refrigerant
2087.5
1.77
Tool Code (Chas sis)
Twin Rotary
GST102MAA
BLDC
POE (RB68A) / Sun Oil or Jx Nippon
280
-
LG Electronics / China
Cros s Flow Fan
30
(ø7 x 2 x 22 x 18FPI x 667) x 1
Gold
Manufacturer / Country of Origin
O.L.P. Nam e
Max. Elevation Difference
Drain Hose Size
21.5, 16.0
3.6 / 7.5 / 15
7.5
7
Fan(Indoor)
Motor Output
Motor Enclosure / Ingress Protection
Motor Type
Moisture Rem oval
Energy Label Grade
Piping Length
Piping Size
Power Supply Cable
Sound Power Level
SEER
SCOP
Weight

5 Steps
○
○
B12TS
S4-W12JA1ZD
○
X
1
6 Steps
○
○
5 / 6 / 6
○
○/ ○
○
○
○
X
X
Installation X
○
○
○
○
○
X
○
○
X
○
X
7hr
○/ X
X
X
X
X
X
○
○
Number Display
On/Off
○
X
○
X
X
X
X
X
(See Remote Controller Section)
Setting Temperature Range (Cooling) 18~30 ℃(64~86 ℉)
Setting Temperature Range (Heating) 16~30 ℃(60~86 ℉)
X
X
X
X
X
X
X
X
X
X
X
X
Others
Mode Lock
Temperature Control
DRED (Demand Response Enabling Device)
Energy
Saving Gen Mode
Wi-Fi ²
Water Level Sensor Connection ²
Wind Baffle Kit ²
Special
Function
Kit
CAC
Network
Function
General Central Controller (Non LGAP)
PDI (Power Distribution Indicator) ²
Outdoor Unit PI 485 ²
Network Solution (LGAP)
Dry Contact ²
Sump Heater
Sheath Heater ²
Crank Case Heater
Smart Inverter Monitoring System (SIMs) ²
Indoor Unit Display Type
Overheating Protection
Timer 24hr (On/Off) / 7hr (Off)
Group Control ¹
Smart Scan (PIR)
LG AC Tag On (NFC)
Outdoor Silent Mode
Mosquito Away
Smart Diagnosis
Timer (Weekly) ¹
Two Thermistor Control ¹
Voice Control
Category Function
Reliability
Air
Purifying
Prefilter (Washable / Anti-Bacteria)
Deodorizing Filter
Plasma Air Purifier (Ionizer)
Drain Pump
Hot Start
Self Diagnosis
De-ice Control (Defrost)
3M Micro Dust Filter
3M Multi Protection Filter
Air Flow
Air Supply Outlet
Airflow Direction Control (Left & Right)
Airflow Direction Control (Up & Down)
Auto Swing (Left & Right)
Auto Swing (Up & Down)
Fan Speed Steps (Fan / Cool / Heat)
Natural Wind (Auto Wind)
Jet Cool / Jet Heat (Power Wind)
Comfort Air
Sleep Mode
Dry (Dehumidification) Operation
Auto Cleaning (Coil Dry)
Auto Restart Operation
Child Lock ¹
Forced Operation
Wired Remote Controller (Standard) ²
Wired Remote Controller (Simple with Mode Selection) ²
Energy Display
Energy Saving
Active Energy Control (Watt Option)
Individual
Control
Wired Remote Controller (Premium) ²
Wired Remote Controller (Simple without Mode Selection) ²
Handheld Wireless Controller
Convenience
Auto Changeover
Auto Operation (Artificial Intelligence)
Low Ambient Operation
Low Heating
Indoor Unit Display Light
Note
O : Applied, X : Not Applied
• Filters are optional in some specific areas.
• ¹ : This function can be operated only when the wired remote controller is connected.The applicability of each function depends on the above table.
• ² : Optional accessories must be purchased separately. If shown as "Embedded", this function is included in product.
•The function Wi-Fi is only compatible with 2.4 GHz band. (802.11 b/g/n)
• Some specifications may be changed without notifications due to our policy of innovation.
X
○
Embedded
Thermistor
AKB74955603

3. Refrigerant Cycle Diagram
Refrigerant Pipe Connection Port Diameters
Model Gas Liquid
mm inch mm inch
Ø 9.52 Ø 3/8 Ø 6.35 Ø 1/4
LOC. Description PCB Connector
CN-TH1 (Indoor)
CN-TH3 (Indoor)
Th3 Thermistor for outdoor air temperature
Th1 Thermistor for indoor air temperature
Th5 Thermistor for discharge pipe temperature
Th2 Thermistor for evaporator middle temperature
CN-TH1 (Outdoor)
Th4 Thermistor for condensing temperature
CN-TH2 (Outdoor)
Model : S4-W12JA1ZD
Appendix
Heat Exchanger Propeller Fan
MCross Flow Fan
M
Compressor
r
Accumulator4 Way Valve
EEV
(Electronic
Expansion Valve)
Capillary Tube
2-Way Valve
3-Way Valve
Temperature
SensorPressure SensorPressure Switch
Check Valve Flare Joint Muffler Strainer
M
M
Heat
Exchanger
(Evaporator)
Heat
Exchanger
(Condenser)
Field Piping
(Copper Tubing)
2-Way Valve
3-Way Valve
Indoor Unit
: Cooling
: Heating
Th1 Th3
Th5
Th4
Liquid Side
Gas Side
Reversing
Valve
Field Piping
(Copper Tubing)
Th2
Compressor
Capillary Tube
(OD 3.2 × ID 1.6 × 950 mm) × 1EA
Outdoor Unit
S4-W12JA1ZD
4

4. Wiring Diagrams
Indoor Unit
MEZ66711021
EEPROM
CN-TH3 CN-TH1
CN_TH3
CN_TH1
CN_DISP1
CN_HVB
CN_DISP3CN_U/DCN_L/R
CN_MOTOR1
CN_LINKCN_COM
CN_IN/N1 CN_L1
5

- 6 -
LGE Internal Use Only
Outdoor Unit
MEZ67433912
Option
Field Wiring
Factory Wiring
PARTS
PSC
CN_LGMV
CN_UVW
CN_TH2
CN_TH1
CN_4WAY
CN_FAN_AC
COM_RD
CN2
CN3CN_COIL1
WCN_ACFAN_N
CN_COIL2
WCN_P(L)
WCN_P(N)

- 7 -
LGE Internal Use Only
5. Exploded View
Indoor Unit
LOC. Description PCB Connector
Thermistor for indoor air temperature
Thermistor for evaporator middle temperature 3
733010
131410
149304
267110
342800
135501
135311 147581
352150
146811A
135500C
149303
135316
249951
354212 268711B
W6640A
131111
135080
346810
147582
359011
W50400
263230A
263230B
145200B
146811A
159820
268711C

- 8 -
LGE Internal Use Only
Outdoor Unit
437211
137213A
435301
137213B
435511B
554031
237202
447910
261704
549610
546810
559010
Tube Assembly, Reverse
552116
552113
135500C
561410
148000
554160
552203A
552203B
552112
649950
263230A
268711F
263230B
W6640B
Valve, Reverse
552202
Tube Assembly, Capillary
552111
550140
W6631
W4004
430410
152503
BCPnoitpircseD.COL Connector
Thermistor for condensing temperature
Thermistor for outdoor air temperature
W0CZZ
W4986A
W4986C
W4986B
W4986D

P/NO : MFL70404777 Dec,2018