Daewoo DSB-F1216LH-DV User manual

Service Manual
AIR CONTIONER
Model: DSB-F1216LH-DV
Oct. 2009
✔ Caution
: In this Manual, some parts can be changed for improving, their
performance without notice in the parts list. So, if you need the
latest parts information, please refer to PPL(Parts Price List) in
Service Information Center (http://svc.dwe.co.kr).
S/M No. :

8
4. Specification
Indoo
r
MSR1-09HRDN1-QC2
(
C
)
MSR1-12HRDN1-QC2
(
C
)
Outdoo
r
MOA-09HDN1-QC2 MOB-12HDN1-QC2
Power supply Ph-V-Hz 1,220-240V~,50Hz 1, 220-240V~, 50Hz
Cooling
Capacity Btu/h 8500(2250~10000) 11000(2450~13500)
Input W 770(180~1100) 1000(210~1380)
Rated current A 3.4(0.9~4.8) 4.4(1.0~6.2)
EER W/W 3.23 3.22
Heating
Capacity Btu/h 9000(2300~11000) 12500(2800~16000)
Input W 730(170~1050) 1010(210~1480)
Rated current A 3.2(0.8~4.6) 4.5(1.0~6.6)
COP W/W 3.61 3.63
Moisture Removal L
/
h0.9 1.1
Max. input consumption W 1610 1750
Max. current A 7.0 8.0
Starting current A 5.1 6.7
Compressor
Model DA89X1C-23EZD1 DA89X1C-23FZ
Type Rotary Rotary
Brand Toshiba Toshiba
Capacity Btu/h 8803 9040
Input W 685 680
Rated current(RLA) A 4.65 4.7
Locked rotor Amp(LRA) A 10 10
Thermal protecto
r
CS-74 CS-74
Capacito
r
uF No No
Refrigerant oil ml 370 370
Indoor fan motor
Model RPG20E
Brand Welling
Input W 45
Capacito
r
uF 1.5
Speed(hi/mi/lo) r/min 1200/1000/850 1250/1100/900
Indoor air flow (Hi/Mi/Lo) m3/h 500/420/350 550/450/350
Indoor noise level (Hi/Mi/Lo) dB(A) 40/34
/
29 41/37/31
Indoor unit
Dimension (W*H*D) mm 790×275×190
Packing (W*H*D) mm 865×350×265
Net/Gross weight Kg 7.5
/
9.5 8.5/10.5
Outdoor fan motor
Model YDK24-6K YDK24-6G
Brand Welling Welling
Input W 63/49 59/47
Capacito
r
uF 2.5 2.5
Speed r/min 815/590 800/550
Outdoor air flow m3/h 1800 2000
Outdoor noise level dB(A) 53 54
Outdoor unit
Dimension(W*H*D) mm 700×535×235 780×540×250
Packing (W*H*D) mm 815×580×325 910×575×335
Net/Gross weight Kg 28
/
30 35/37
Refrigerant type R410A g 700 980
Refrigerant piping
Liquid side/ Gas side mm(inch) Ф6.35/Ф9.53 Ф6.35/Ф12.7
Max. refrigerant pipe length m 20 20
Max. difference in level m 8 8
Operation temp ℃17 ~ 30 17 ~ 30
Ambient temp ℃-15 ~ 50 -15 ~ 50
The above design and specifications are subject to change without prior notice for product improvement.

9
5. Refrigerant cycle diagram

10
6. Wiring diagram
6.1 Indoor Unit
DSB-F1216LH-DV

11
6.2 Outdoor Unit
DSB-F1216LH-DV

13
7. Installation details
7.1 Wrench torque sheet for installation
Outside diameter Torque
mm inch Kgf·m
Ф6.35 1/4 1.8
Ф9.52 3/8 4.2
Ф12.7 1/2 5.5
7.2 Connecting the cables
The power cord of connect should be selected according to the following specifications sheet.
Grade
Unit 9K 12K
mm21.0 1.5
7.3 Pipe length and the elevation
Capacity
Btu/h
Pipe size Standard
length
(m)
Max.
Elevation
B (m)
Max.
Elevation
A (m)
Additional
refrigerant
(g/m)
Gas Liquid
9k~12K
3/8’’ (Ф9.52) 1/4’’ (Ф6.35) 5 8 20 30
1/2’’ (Ф12.7) 1/4’’ (Ф6.35) 5 8 20 30
Caution:
Capacity is base on standard length and maximum allowance length is base of reliability.
Oil trap should be installed per 5-7 meters.
7.4 Air purging of the piping and indoor unit
Required tools:
Hexagonal wrench; adjustable wrench; torque wrenches, wrench to hold the joints and gas leak detector.
Note:
The air in the indoor unit and in the piping must be purged. If air remains in the refrigeration piping, it will affect the

30
10. Troubleshooting
Safety
Because of there are capacitors in PCB and relative circuit in outdoor unit, even shut down the power supply,
electricity power still are kept in capacitors, do not forget to discharge the electricity power in capacitor.
CONDENSADORES ELECTROLITICOS
(PRECAUCION ALTO VOLTAJE)
Bulb(25-40W)PARA DESCARGAR LOS CONDENSADORES

31
10.1 Indoor Unit Error Display
Display LED STATUS
E0 EEPROM parameter error
E1 Indoor / outdoor units communication protection
E2 Zero-crossing signal error
E3 Fan speed out of control
E5 Open or short circuit of outdoor ambient or condenser temperature sensor
E6 Open or short circuit of indoor room or evaporator temperature sensor
P0 Inverter module (IGBT) over-strong current protection
P1 Over voltage or too low voltage protection
P2 Temperature protection of compressor top.
P4 Inverter compressor drive error
Note: E4 & P3: Reserved function

32
10.2 Diagnosis and Solution
10.2.1 E0(EEPROM parameter error) error diagnosis and solution
102.2 E1(indoor / outdoor units communication protection) error diagnosis and solution
10.2.3 E2(zero-crossing signal error) diagnosis and solution
Disconnect the power supply, after 1 minute,
connect the power supply , turn on the unit with
remote controller
Does the unit work normally?
Check the wiring between
indoor and outdoor unit. Is
the connection of L, N, S and
GND good?
Is the GND connection on
outdoor PCB good?
NO
NO
Reconnect and retest again
Is the LED4(red) on
outdoor PCB bright and
LED1(yellow) blinking?
Replace outdoor e-box.
Yes
Yes
The power supply for
outdoor PCB is fail. Check
the wiring on outdoor PCB
comparing with wiring plate.
Is the connection good?
No
Correct the connection.
Yes
No
Replace indoor PCB
and repower on. Is
the failure cleared?
Is power supply and
connection of connectors
good?
Indoor PCB is defective. Replace
the indoor PCB.
Be sure the power supply is good
and correct the connection
NO
YES
Circuit or software error on indoor PCB Replace indoor PCB

33
10.2.4 E3(indoor fan speed out of control) diagnosis and solution
10.2.5 E5(Open or short circuit of outdoor ambient or condenser temperature sensor) diagnosis and solution.
10.2.6 E6(open or short circuit of indoor room or evaporator temperature sensor) diagnosis and solution.
10.2.7 P0(IGBT over-strong current protection) diagnosis and solution.
Is all connections on PCB
and between PCB and
compressor good?
Repair or correct the
connector or connection.
Replace the outdoor PCB
and then repower on. Is
the failure cleared?
NO
YES
Check the compressor
NO
Is the indoor temperature
and evaporator sensor
connector and connection
good?
Repair the connector and
reconnect
Replace the sensor and
check if E6 display again?
NO
YES
Replace the.indoor PCB
YES
Is the outdoor temperature
sensor connector and
connection good?
Repair the connector and
reconnect
Replace the sensor and
check if E5 display again?
NO
YES
Replace outdoor e-box
YES
Is the indoor fan motor
connector and connection
good?
Repair the connector and
reconnect
Is voltage being applied to
the fan motor?
(rang 90v-160v between
mid pin and N on CN1
NO
YES
Indoor PCB is defective.
Replace the indoor PCB.
YES
Replace the indoor fan
motor
NO

34
10.2.8 P1(over voltage or too low voltage protection) diagnosis and solution.
10.2.9 P2(temperature protection of compressor top) diagnosis and solution.
10.2.10 P4(inverter compressor drive error) diagnosis and solution.
Is the connection of
compressor good? Is the
wiring sequence right? The
voltage range proper?
Replace the outdoor E-box.
If the problem comes to
again, check coil resistance
of inverter compressor, is it
1.10
ohm?
YES
Replace inverter compressor
Reconnect and retry
NO
NO
Is the power supply good? Be sure the power supply is
normal when using the units
NO
YES
Replace the outdoor e-box.
YES
Does compressor
o
p
erate?
Is the connection
good?
Is refrigerant
circulation
volume normal?
NO
NO
Charge refrigerant
Is abnormality
the same after
gas charging?
NO
Check refrigerant system (such
as clogging of capillary, etc)
Reconnect and retest.
NO
YES
Is protector
normal? Replace the protector.
NO
YES
Check the outdoor
main PCB. Is there
some problem?
Replace the outdoor PCB.
YES

35
10.3 Key parts checking.
10.3.1. Compressor checking
(Model: DA89X1C-23EZD1 for MSR1-09HRDN1-QC2(C), DA89X1C-23FZ for MSR1-09HRDN1-QC2(C)).
Measure the resistance value of each winding by using the multi-meter.
10.3.2 Outdoor Fan Motor
(Model: YDK24-6K for MSR1-09HRDN1-QC2(C), YDK24-6G for MSR1-12HRDN1-QC2(C)).
Measure the resistance value of each winding by using the multi-meter.
10.3.3 Indoor Fan Motor (Model:RPG20E).
Measure the resistance value of each winding by using the multi-meter.
10.3.4 Step Motor (Model: MP24GA).
Measure the resistance value of each winding by using the multi-meter.
Position Resistance Value
Blue - Red 1.10Ω
(20Ԩ)
Blue - Black
Red - Blue
Position Resistance Value
Black - Red 350Ω±8% (20Ԩ) for YDK24-6K
435Ω±8% (20Ԩ) for YDK24-6G
Blue - Red 222Ω±8% (20Ԩ) for YDK24-6K
213Ω±8% (20Ԩ) for YDK24-6G
Yello w -
Blue
222Ω±8% (20Ԩ) for YDK24-6K
213Ω±8% (20Ԩ) for YDK24-6G
Position Resistance Value
Black - Red 387Ω±8% (20Ԩ)
White - Black 378Ω±8% (20Ԩ)
Position Resistance Value
Blue - Red
200Ω±7% (25Ԩ)
Pink - Orange
Pink - Yellow
Yellow - Red

36
10.3.5 Temperature Sensors.
Roomtemp.(T1)sensor,
Indoor coil temp.(T2) sensor,
Outdoor coil temp.(T3) sensor,
Outdoor ambient temp.(T4) sensor,
Compressor exhaust temp.(Te) sensor.
Measure the resistance value of each winding by using the multi-meter.
Some frequently-used R-T data for T1,T2,T3 and T4 sensor:
Temperature ( )℃5 10 15 20 25 30 40 50 60
Resistance Value (KΩ) 26.9 20.7 16.1 12.6 10 8 5.2 3.5 2.4
Some frequently-used R-T data for Te sensor:
Temperature (Ԩ) 5 15 25 35 60 70 80 90 100
Resistance Value (KΩ) 141.6 88 56.1 36.6 13.8 9.7 6.9 5 3.7
KΩ
Ԩ

DSB-F1216LH-DV
220-240V~ 50Hz 1Phase
Exploded View Parts for Model

No. Part Name Quantity BOM code
1 Front panel assy 1 NO DISPONIBLE
2 Air filter 1 201132590113
2 Air filter 1 201132590112
3 Air cleaner 1 201130100212
4 Air cleaner holder 1 NO DISPONIBLE
5 Display box assy 1 NO DISPONIBLE
5.1 Display board assy 1 201332790095
6 Window cover for repairing 1 NO DISPONIBLE
8 Panel frame assy 1 NO DISPONIBLE
9 Air out frame assy 1 201132590671
9.1 Vertical grille 9 NO DISPONIBLE
9.2 Louver holder 3 NO DISPONIBLE
9.3 Horizontal louver,up 1 201132590758
9.4 Horizontal louver,down 1 201132590759
10 Louver motor 1 202400200027
11 Drain hose 1 NO DISPONIBLE
13 Sensor clamp 1 NO DISPONIBLE
14 Breakwater 1 NO DISPONIBLE
14 Breakwater 1 NO DISPONIBLE
15 Evaporator,assy 1 NO DISPONIBLE
16 Motor cover 1 NO DISPONIBLE
17 Motor 1 202400400213
18 Bearing holder 1 202730190001

No. Part Name Quantity BOM code
19 Cross flow fan 1 201100200020
20 Chassis 1 NO DISPONIBLE
21 Connecting pipe clamp 1 NO DISPONIBLE
23 Installation plate 1 NO DISPONIBLE
24 Electronic control box,indoor unit 1 NO DISPONIBLE
24.2 E-Parts box 1 NO DISPONIBLE
24.3 Main control board 1 201332490098
24.3.1 Wires capacitor 1 NO DISPONIBLE
24.4 Indoor temp sensor 1 202433190000
24.5 Evaporator temp sensor 1 202301300080
24.6 Wire join 1 NO DISPONIBLE
24.8 Transformer 1 202300900095
25 Remote Controller 1 2033550A3367
26 Holder,Remote Controller 1 NO DISPONIBLE
27 Seal 1 NO DISPONIBLE
28 Connector for watering 1 NO DISPONIBLE
29 Copper nut 1 NO DISPONIBLE
29 Copper nut 1 NO DISPONIBLE
30 E-Parts box's cover 1 NO DISPONIBLE
31 Fixing board for motor 1 NO DISPONIBLE
32 Fixing board for bear 1 NO DISPONIBLE
33 Cover board for wiring 1 NO DISPONIBLE
35 Chassis front cover 1 NO DISPONIBLE

Exploded View Parts for Model
DSB-1216LH-DV
220-240V~ 50Hz 1Phase

No. Part Name Quantity BOM code
1 Indoor temp sensor 1 202301300160
2 Rear net 1 NO DISPONIBLE
3 Condenser coil assembly 1 NO DISPONIBLE
4 Pipe Temperature Sensor 1 202301300445
5 Valve plate 1 NO DISPONIBLE
6 Base pan assembly 1 NO DISPONIBLE
7 Big handle 1 NO DISPONIBLE
8 Water collector 1 NO DISPONIBLE
9 Right clapboard 1 NO DISPONIBLE
10 Partition plate assembly 1 NO DISPONIBLE
11 Front panel 1 NO DISPONIBLE
12 Front net 1 NO DISPONIBLE
13 Reactor 1 NO DISPONIBLE
15 Motor mounting bracket assembly 1 NO DISPONIBLE
16 Axial flow fan 1 201100300502
17 Left supporter 1 NO DISPONIBLE
18 Asynchronism motor(iron) 1 202400400477
20 Top cover assembly 1 NO DISPONIBLE
21 Electrical box assembly 1 203337590039
21.1 E-Parts box 1 PEDIR 21
21.3 E-box Installation plate 1 PEDIR 21
21.4 Main control board 1 201337590016
21.4.1 Motor capacitor 1 PEDIR 21
21.5 Inverter control board subassembly 1 PEDIR 21

No. Part Name Quantity BOM code
21.7 Terminal Block 1 PEDIR 21
21.8 Wire Clip 1 PEDIR 21
21.10 Radiator 1 PEDIR 21
22 liquid valve assembly 1 NO DISPONIBLE
22.1 Liquid pipe valve 1 201600740522
23 Gas valve assembly 1 NO DISPONIBLE
23.1 Gas valve 1 201600720194
23.2 4-way valve 1 201600690010
24 Discharge temp sensor Ass'y 1 202301300470
25 Compressor 1 201400620170
35 clip, capacitor 1 NO DISPONIBLE
36 Capacitor,Compressor 1 202401090055
37 Small handle 1 NO DISPONIBLE
38 Support Board 1 NO DISPONIBLE