Daewoo | DTB Series | Service Manual

S/M NO. : DTBF071001
Service Manual
Split System Air
Conditioner
Model: DTB-F071LH-DVI
DTB-F091LH-DVI
DTB-F121LH-DVI
DTB-F181LH-DVI
DMB-F2713LH-AVO
by Nemko
DAEWOO ELECTRONICS CO., LTD.
1
CONTENTS
1. Features
2. Specification
3. Outline and dimension
4. Indoor unit combination
5. Capacity table
6. Wiring diagram
7. Electronic control functions
1. Features:
1) Fashion design, quality life;
2) Low operation noise;
3) High efficiency screw fan;
4) Equal, fast, wide-angle cooling, more comfortable.
2.Specification
indoor unit
Model
Power supply
Capacity
Ph-V-Hz
MSQ4I-09HRIN1
MSQ4I-12HRIN1
MSQ4I-18HRIN1
1Ph,220-240V~,50Hz
1Ph,220-240V~,50Hz
1Ph,220-240V~,50Hz
1Ph,220-240V~,50Hz
Cooling Capacity
BTU/h
7,000
9,000
12,000
18,000
Heating Capacity
BTU/h
8,500
11,000
14,000
21,000
Design Pressure (Hi/Lo)
Mpa
4.2/2.5
4.2/2.5
4.2/2.5
4.2/2.5
Max. Operating Pressure
Mpa
3.5
3.5
3.5
3.5
Model
YDK45-4F
YDK45-4F
YDK45-4F
YDK45-4F
Brand
Welling
Welling
Welling
Welling
W
63
63
63
63
Capacitor
uF
1.5uF/450V
1.5uF/450V
1.5uF/450V
2.5uF/450V
Speed(hi/mi/lo)
r/min
750/660/540
750/660/540
830/730/680
930/830/660
2
2
2
2
Indoor fan motor Power Input
a.Number of rows
Indoor coil
MSQ4I-07HRIN1
b.Tube pitch(a)x row pitch(b)
mm
21x13.37
21x13.37
21x13.37
21x13.37
c.Fin spacing
mm
1.3
1.3
1.3
1.3
d.Fin type (code)
Hydrophilic aluminium Hydrophilic aluminium Hydrophilic aluminium Hydrophilic aluminium
e.Tube outside dia.and type
mm
f.Coil length x height x width
mm
g.Number of circuits
Ф7.94, innergroove
Ф7.94, innergroove
Ф7.94, innergroove
Ф7.94, innergroove
tube
tube
tube
tube
1185X210X26.7
1185X210X26.7
1185X210X26.7
1185X210X26.7
5
5
5
5
Indoor air flow (Hi/Mi/Lo)
m3/h
600/500/420
600/500/420
680/580/500
860/760/650
Indoor noise level (Hi/Mi/Lo)
dB(A)
36/33/30
36/33/30
36/33/30
43/40/38
Pipe size
Liquid side/ Gas side
mm(inch)
φ6.35 (1/4’)
φ6.35 (1/4’)
φ6.35 (1/4’)
φ6.35 (1/4’)
φ9.53 (3/8’)
φ9.53 (3/8’)
φ12.7 (1/2’)
φ12.7 (1/2’)
Dimension (W*H*D)
mm
580×254×580
580×254×580
580×254×580
580×254×580
Packing
mm
750x340×750
750x340×750
750x340×750
750x340×750
Kg
21/28
21/28
21/28
28/36
Indoor
unit(body)
(W*H*D)
Net/Gross weight(body)
Dimension (W*H*D)
mm
650x30x650
650x30x650
650x30x650
650x30x650
Packing
mm
715x115x715
715x115x715
715x115x715
715x115x715
Kg
3/5
3/5
3/5
3/5
Application area
m2
10-14
14-21
18-26
35-40
Qty per 20’/40’/40’HQ
Pieces
Indoor
unit(panel)
(W*H*D)
Net/Gross weight(panel)
OUTDOOR UNIT:
M4OA-27HRIN1
Outdoor Model
single
Indoor unit combination
Power supply
Cooling
7000~18000
14000~24000
21000~27000
27000
W
960~2510
1450~2830
2050~3100
3141
Rated current range
A
4.4~12.0
6.6~13.0
9.4~14.5
14.8
9000~18000
16000~27000
21000~30000
32000
Btu/h
Rated input power range
W
1100~2430
1400~2520
2020~2950
2982
Rated current range
A
5.0~11.6
6.4~12.0
9.3~13.8
13.9
Max. input consumption
W
4500
Max. current
A
25
Model
BA160X2CS-20KU
Type
Rotary inverter
Brand
GD Toshiba
Capacity
Compressor
Btu/h
fan
18000(60HZ)
Input
W
1690(60HZ)
Rated current(RLA)
A
11.6(60HZ)
Locked rotor Amp(LRA)
A
60
Thermal protector
Outdoor
motor
Quadplex
Rated input power range
Heating Capacity range
Heating
Btu/h
Treble
1Ph,220-240V~,50Hz
Ph-V-Hz
Cooling Capacity range
double
Internal
Capacitor
uF
Refrigerant oil
ml
85UF/250V
RB68AF/α68TF/T-68
Model
YDK100-6
Brand
Welling
Input
W
169(HIGH)
Capacitor
uF
5uF/500VAC
Speed
r/min
900(HIGH)
750
ml
2
a.Number of rows
Outdoor coil
b.Tube pitch(a)x row pitch(b)
mm
25.4×22
c.Fin spacing
mm
1.5
d.Fin type (code)
Hydrophilic aluminium
e.Tube outside dia.and type
mm
φ9.53 innergroove tube
f.Coil length x height x width
mm
850×810×44
g.Number of circuits
Outdoor air flow
Outdoor noise level
Outdoor unit
m3/h
3500
dB(A)
57
Dimension(W*H*D)
mm
895X860X330
Packing
mm
1043X915X395
Kg
80/84
(W*H*D)
Net/Gross weight
Refrigerant type and charge
Design pressure(Hi/Lo)
Liquid side/ Gas side
Refrigerant
piping
2
g
MPa
mm(inch)
R410A, 2700
4.2/2.5
6.35(1/4)/9.53(3/8)
Max. refrigerant pipe length for
each unit
m
20
Max. difference in level between
indoor and outdoor unit
m
10
Connection wiring
No
Plug type
No
Electronic control
Thermostat type
Operation temp
Cooling
heating
Qty’per 20’ /40’ /40'HQ
℃
18~45
℃
-15~33
set
Notes:
1. Nominal cooling capacities are based on the following conditions:
Indoor temp: 27°CDB, 19°CWB;
Outdoor temp: 35°CDB;
Equivalent ref. Piping: 8m(horizontal)
2. Nominal heating capacities are based on the following conditions:
Indoor temp: 20°CDB;
Outdoor temp: 7°CDB, 6°CWB;
Equivalent ref. Piping: 8m(horizontal)
8. Actual noise level may differ, depending on the room structure, etc, since these noise values are from an anechoic room.
3.Outline and dimension
Drain side and
Tubing side
Indoor unit(7k/9k/12k/18k):
A
28.5
401(Hook-location)
580(Body)
600(Ceiling hole)
650(Panel)
1013
895
590
141
300
163
600
Chart 4
67
Outdoor unit
330
265
422
580(Body)
600(Ceiling hole)
611(Hook-location)
650(Panel)
Nut
Ceiling
355
Hook
Body
COMP
Panel
4.Indoor unit combination:
Caution on combination
The one-drive-four outdoor unit M4OA-27HRIN1 nominal cooling capacity is 8kw(under
condition of ambient temp. 35℃db/24℃wb, indoor temp. 27℃db/19℃wb). According to
refrigeration design criterion, total indoor unit capacity should be equal to outdoor capacity,
otherwise, we can not guarantee best performance and safe operation. Although, we made
special design on refrigeration system regarding customer’s requirements. Based on this,
when indoor total capacity exceed outdoor capacity, the machine can still run. Under this
condition, the single indoor unit capacity will attenuate. That means you can not gain the
nominal capacity, but smaller than it. We are out of responsibility if customers don’t follow the
notice below:
1. You can connect two, three or four indoor units according your need;
2. The total indoor unit nominal capacity should not exceed 11.3kw(42% more than nominal
capacity);
3. There should be no more one 18k indoor unit(either cassette or duct), and other indoor
unit should be all 7k;
4. There should be no more two duct indoor units, and other indoor units should be all wall
mounted;
5. There should be no more one cassette;
6. Cassette and duct can not be installed simultaneously.
7. When heating, capacity attenuate sharply if indoor unit capacity exceed too much.
5. Capacity table
M4OA-27HRIN1 (7k+7k+7k+7k)
COOLING
OUTDOOR TEMPERATURE DRY
Indoor
21ºC
25ºC
30ºC
35ºC
40ºC
45ºC
Total capacity kW
7.63
7.30
7.03
6.64
6.37
6.17
Sensitive capacity kW
6.11
5.84
5.63
5.31
5.10
4.94
Input kW.
1.95
2.23
2.51
2.79
3.07
3.35
Total capacity kW
8.36
7.99
7.70
7.27
6.98
6.76
Sensitive capacity kW
6.69
6.40
6.16
5.81
5.58
5.41
Input kW.
2.06
2.36
2.65
2.95
3.24
3.53
Total capacity kW
9.09
8.69
8.37
7.90
7.58
7.35
Sensitive capacity kW
7.27
6.95
6.70
6.32
6.07
5.88
Input kW.
2.17
2.48
2.79
3.10
3.41
3.72
Total capacity kW
10.45
9.99
9.63
9.09
8.72
8.45
Sensitive capacity kW
8.36
7.99
7.70
7.27
6.98
6.76
Input kW.
2.50
2.85
3.21
3.57
3.92
4.28
Conditions
21ºC D
15ºC W
24ºC D
17ºC W
27ºC D
19ºC W
32ºC D
23ºC W
HEATING
OUTDOOR CONDITIONS
24ºC D
Indoor
Conditions
15ºC
18ºC
20ºC
22ºC
27ºC
12ºC D
7ºC D
4ºC D
0ºC D
-5ºC D
-7ºC D
-15ºC D
18ºC W 11ºC W
6ºC W
3ºC W
-1ºC W
-6ºC W
-8ºC W -16ºC W
Capacity
kW
14.66
11.73
9.78
8.80
8.31
7.33
6.84
6.35
Input kW.
5.52
4.42
3.68
3.50
3.31
3.13
2.94
2.58
Capacity
kW
13.77
11.02
9.18
8.26
7.80
6.89
6.43
5.97
Input kW.
5.18
4.15
3.46
3.28
3.11
2.94
2.76
2.42
Capacity
kW
12.75
10.20
8.50
7.65
7.23
6.38
5.95
5.53
Input kW.
4.80
3.84
3.20
3.04
2.88
2.72
2.56
2.24
Capacity
kW
11.73
9.38
7.82
7.04
6.65
5.87
5.47
5.08
Input kW.
4.42
3.53
2.94
2.80
2.65
2.50
2.36
2.06
Capacity
kW
10.20
8.16
6.80
6.12
5.78
5.10
4.76
4.42
Input kW.
3.84
3.07
2.56
2.43
2.30
2.18
2.05
1.79
6. WIRING DIAGRAM
Indoor unit:
Outdoor unit (M4OA-27HRIN1)
7. Electric control functions:
7.1 Protection
1. 3 minutes delay at restart for compressor.
2. Temperature protection of compressor top, compressor stops when the temp. of top of
compressor is more than 120℃, compressor runs when the temp. of top of compressor is less
than 105℃.
3. When AC voltage ≥ 270V for 30 seconds, Outdoor Unit stops operation and alarms.
When AC voltage ≤ 260V for 30 seconds, Outdoor Unit resumes operation.
4. Inverter module protection, Inverter module Protection itself has a protection function
against current, voltage and temperature.
5. Sensor protection at open circuit and breaking disconnection.
6. Fan Speed is out of control. When Indoor Fan Speed is too high(higher than High
Fan+300RPM)or too low(lower than 400RPM), the unit stops and LED displays failure
information and can’t return to normal operation automatically.
7. Cross Zero signal error warning. If there is no Cross Zero signals in 4 minutes, the unit
stops and LED displays failure information and can’t return to normal operation automatically.
8. Current protection: When the current is more than 25A, the compressor stops.
9. Outdoor condenser high temperature protection: Under cooling mode, if T3>65℃ for 3
minutes, the compressor will stop. When T3<52℃, the protection is not valid.
10. Outdoor low temperature protection: If the outdoor temperature is lower than -15℃ for
1hour, the compressor and fan motor will stop. If the outdoor temperature is higher than -12℃
for 10 minutes and the compressor stops operation for 1h, or the outdoor temperature is
higher than 5℃ for 10 minutes, then restart and enter into the prior operation mode.
11. Compressor pre-heating function: When the outdoor temperature is lower than 3℃ and
the compressor stops operation for more than 3 hours, or the outdoor temperature is lower
than 3℃ and the power is just put on, the compressor enters into pre-heating condition. When
outdoor temp. is more than 5℃ or user operate it, pre-heating condition will finish.
7.2
Operating mode
7.2.1
Cooling mode
1.Indoor fan keeps running, fan speed can be set in high/mid/low/ Auto:
2.Auto fan at cooling mode: (T=Indoor Temp.-Setting Temp.)
Condition
Room temp. up
Room temp. down
Indoor fan speed
T<1.5℃
Low
1.5℃<T<4℃
Mid.
T>4℃
High
T> 3℃
High
1℃<T<3℃
Mid.
T<1℃
Low
3.Anti-freezing control to indoor evaporator at cooling mode( T: evaporator temp. )
Evaporator Temp.
Compressor
T< 4℃
Off
T > 8℃
On
7.2.2 Dehumidifying mode
1.The indoor fan is fixed in low speed
2. Low room temperature protection:
When room temperature decreases to below 10℃, indoor fan stop, when room temperature
restores to over 12℃, indoor fan start.
3. At dehumidifying mode, the anti-freezing function of the indoor heat exchanger is the same
as that of cooling mode.
7.2.3 Heating mode
1. Indoor Fan actions at heating mode
Indoor Fan can be set at HIGH/MID/LOW/AUTO by using a remote controller, but Anti-cold
wind function prevails.
Anti-cold wind control function at heating mode
Condition
Indoor fan speed
T= Indoor exchanger
temp.
Indoor exchanger temp. T<34℃
Off
up
34℃<T<37℃
Breeze
37℃<T<44℃
Low speed
T> 44℃
Setting fan speed
Indoor exchanger temp. T> 38℃
Setting fan speed
down
33℃<T<38℃
Low speed
24℃<T<33℃
Breeze
T<24℃
Off
1. Auto wind at heating mode
Condition
Indoor fan speed
T=Indoor Temp.-Setting Temp.
Room temp. up
T<1.5℃
High
1.5℃<T<2.5℃
Mid.
T>2.5℃
Low
Room temp. down
T<1.0℃
High
1.0℃<T<2.0℃
Mid.
T>2.0℃
Low
2. Indoor evaporator high-temperature protection at heating mode
Condition
Compressor
T= Indoor exchanger temp.
T<48℃
On
53℃<T<63℃
Decrease frequency of compressor
T>63℃
Off
7.2.4 Defrost operation
1. Defrosting condition:
The temperature of outdoor heat exchanger remains consecutively lower than -2°c for more
than 40 minutes,
2. Ending condition of defrosting
If one of following conditions is satisfied, end the defrost and turn into heating mode:
a. The defrost time has reached to 10 minutes.
b. When the temperature of outdoor heat exchanger rises up to 15°C.
3. Defrosting Actions:
a. Compressor runs.
b. 4 way valve switches off,
c. Outdoor fan switches off
d. Indoor fan running according to anti-cold wind function in heating mode.
4. Automatic operation mode
The air conditioner automatically selects one of the following operation modes: cooling,
heating or fan only according to the temp. difference between room temp. (TA) and set
temp. (TS).
TA—TS
Operation mode
TA—TS>2℃
Cooling
-1℃≤TA-TS≤+2℃
Fan-only
TA-TS<-1℃
Heating (air-only for cooling only type)
7.3 Mode conflict
The indoor units can not work cooling mode and heating at same time.
Heating mode has a priority.
7.3.1 Definition
Cooling mode
Heating Mode
Fan
Off
Cooling mode
No
Yes
No
No
Heating Mode
Yes
No
Yes
No
Fan
No
Yes
No
No
Off
No
No
No
No
No: No mode conflict;
Yes: Mode conflict
7.3.2 In case of one Indoor unit working in cooling mode or fan mode, and another indoor
unit is set to heating mode, the indoor unit working in cooling mode or fan mode will
change to stand by. The outdoor unit will work in heating mode.
7.3.3 In case of one Indoor unit working in heating mode, and another indoor unit is set to
cooling mode or fan mode, the indoor unit setting to cooling mode or fan mode will
change to stand by.
7.4 Manual switch
Mode changes when push this button.
Cooing modeÆ Auto modeÆUnit offÆ Cooing mode
At Cooing mode, after 30 minutes cooling operation whose fan speed is set as low, the
A/C operates with a setting temp. of 24℃.
At auto mode, the A/C operates with a set temp. of 24℃
7.5 Timer Function
1.
2.
3.
4.
The maximum length of timer is 24 hours and the minimum resolving power is 15 minutes.
Timer on: first turn off the A/C, the A/C will be automatically on at the set time.
Timer off: first turn on the A/C, the A/C will be automatically off at the set time
Timer on/off function( on time is earlier than off time): first turn off the A/C, it will be
automatically on at set time, and later be off at the set time, then unit turns on at set time.
5. Timer off/on function( off time is earlier than on time): first turn on the A/C, it will be
automatically off at set time, and later be on at the set time, then unit turns off at set time.
7.6 Auto restart function
In case of a sudden power failure, this function automatically sets the unit to previous settings
before the power failure when power returns.
7.7 Cooling capacity test frequency locked.
When test the cooling capacity, the frequency can be locked at 78Hz by following the below:
1. Set the indoor temp. to 17c and high speed;
2. Push the outdoor check button for 5 seconds, then its frequency can be fixed at 78Hz.
After the test is over, turn off the indoor to exit.
7.8 Indoor unit LED display function:
Display
Explanation
E0
EEPROM error
E1
Indoor and outdoor communication error
E2
Zero-crossing examination error
E3
Fan speed beyond control
E5
Outdoor units temp. sensor or connector of temp. sensor is defective
E6
Indoor units temp. sensor or connector of temp. sensor is defective
P0
Inverter module protection
P1
Outdoor voltage protection
P2
Compressor top protection against temperature
P3
Compressor current protection
P5
Outdoor low temp. protection
7.9 Outdoor unit LED display function:
1.
2.
3.
4.
When stand-by it display number of indoor unit online;
When operation it display frequency of outdoor unit;
When defrost it display “df”;
When a protection or error occurred, it display as the following table:
Display
Explanation
E0
EEPROM error
E1
No 1 Indoor units pipe temp. sensor or connector of pipe temp. sensor is defective
E2
No 2 Indoor units pipe temp. sensor or connector of pipe temp. sensor is defective
E3
No 3 Indoor units pipe temp. sensor or connector of pipe temp. sensor is defective
E4
Outdoor temp. sensor or connector of temp. sensor is defective
E5
Compressor voltage protection
E6
No 4 Indoor units pipe temp. sensor or connector of pipe temp. sensor is defective
E7
Indoor and outdoor communication error
P0
Compressor top protection against temperature
P1
High pressure protection
P2
Low pressure protection
P3
Compressor current protection
P4
Inverter module protection
P5
Outdoor low temp. protection
P6
Condenser high-temperature protection
7.10 Check function:
There is a check button on outdoor pcb. When push this button, the outdoor LED can display
in sequence:
Capacity demand→Running mode →revised capacity → fan state →No.1 evaporator pipe
temp. →No.2 evaporator pipe temp.→No.3 evaporator pipe temp.→No.4 evaporator pipe
temp.→outdoor pipe temp. → Outdoor temp. →discharge gas temp.→current of outdoor unit
→ No. 1 opening degree of electronic expansion valve → No. 2 opening degree of EXV →
No. 3 opening degree of EXV→No. 4 opening degree of EXV→indoor unit number→last
protection/error code→capacity demand(cycle)
Explanation for the some display content:
1. Running mode:
Display
Corresponding mode
0
Off
1
Cooling mode
2
Heating mode
2. Fan state:
Display
Corresponding mode
0
Off
1
Low fan
2
High fan
3. Opening degree of EXV:
Opening degree equals the display data times 8;
4. Number of indoor unit
The indoor unit that can communicate with outdoor unit normally.
7.11 Outdoor fan speed control
There is one fan with two-speed, the fan speed is controlled according ambient temp. After
the compressor stop, 30 seconds later the fan stop.
When cooling:
Ambient temp.rise
Ambient temp.decline
> 27
High speed
<27
Low speed
>25
High speed
<25
Low speed
> 14
Low speed
<14
High speed
>12
Low speed
<12
High speed
When heating:
Ambient temp.rise
Ambient temp.decline
7.12 Oil return function
If operation frequency is lower than 54Hz in 2 hours consecutively, it will be increased to 62Hz
for 3 minutes. Then it recovers to the former operation frequency.
8. Exploded View
DAEWOO ELECTRONICS CO., LTD
686, AHYEON-DONG MAPOGU,
SEOUL, KOREA.
C.P.O. BOX 8003 SEOUL KOREA
TELEX: DWELEC K28177-8
CABLE: "DAEWOOELEC"
FAX: +82-2-364-5588
TEL: +82-2-360-7114, 8114
http://www.dwe.co.kr
S/M NO. : DTBF071001
PRINTED DATE: MAR. 2006
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