Carrier 42NQ009N User manual

FILE NO. SVM-10036-1
42NQ009N / 38NY009N
April, 2010
SERVICE MANUAL
AIR CONDITIONER
SPLIT WALL TYPE

− 1 −
CONTENTS
1. SPECIFICATIONS
2. CONSTRUCTION VIEWS
2-1 Indoor Unit
2-2 Outdoor Unit
3. WIRING DIAGRAM
4. SPECIFICATION OF ELECTRICAL PARTS
4-1 Indoor Unit
4-2 Outdoor Unit
5. REFRIGERATION CYCLE DIAGRAM
6. CONTROL BLOCK DIAGRAM
7.
7-9 ECO Operation
OPERATION DESCRIPTION
7-1
7-7 Current Limit Control
Remote control
7-8 Hi POWER Mode
7-2 Outline of Air Conditioner Control
7-3 Description of Operation Mode
7-4 High-Temperature Limit Control
7-5 Low-Temperature Limit Control
7-6 Defrost Operation
FILE NO. SVM-10036
7-10 Auto Restart Function
8. INSTALLATION PROCEDURE
8-1 Safety Cautions
8-2 Installation Diagram of Indoor and Outdoor Units
8-3 Installation
8-4 Indoor Unit
8-5 Outdoor Unit
8-6 How to Set Remote Control Selector Switch
8-7 Others

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9. TROUBLESHOOTING CHART
9-1 Troubleshooting Procedure
9-2 Basic Check Items
9-3 Primary Judgement
9-4 Self-Diagnosis by Remote Control (Check Code)
9-5 Troubleshooting Flowcharts
9-6 Troubleshooting for Remote Control (Including The Indoor P.C.Board)
10. PARTS REPLACEMENT
10-1 Indoor Unit
10-2 Outdoor Unit
11. EXPLODED VIEWS AND PARTS LIST
11-1 Indoor Unit (E-Parts Assy)
•This air conditioner is charged with
HFC (R410A) that doesn't deplete the
Ozone layer.
•This air conditioner requires special
installation for the refrigerant R410A.
FILE NO. SVM-10036
Outdoor Unit
11-3
11-2 Indoor Unit

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MODEL 42NQ009N / 38NY009N
ITEM Cooling Heating
Capacity 220V 240V 220V 240V
kW 2.73 2.73 2.92 2.94
Phase 1∅
Power source V220 −240
Hz 50
Power consumption kW 0.84 0.86 0.80 0.82
Power factor %98 97 97 96
Running Indoor A 0.15
current Outdoor A3.73 3.53 3.60 3.40
Starting current A 18
Moisture removal lit/h 1.2
Noise Indoor (H/M+/M/L+/L) dB 40/38/36/34/32
Outdoor (220-240V) dB 47 49 47 49
Refrigerant Name of refrigerant R410A
Rated amount kg 0.78
Refrigerant control Capillary tube
Gas side sizemm ∅9.52
Connection type Flare connection
Liquid side sizemm ∅6.35
Interconnection Connection type Flare connection
pipe Maximum length m 10*1
(One way)
Maximum height
difference
INDOOR UNIT 42NQ009N
Height mm 250
Dimensions Width mm 740
Depth mm 195
Net weight kg 8
Evaporator type Finned tube
Indoor fan type Cross flow fan
High fan m3/h 540 560
Air volume Medium fan m3/h 460 500
Low fan m3/h 390 400
Fan motor output W 20
Air filter Honeycomb woven filter with PP frame
OUTDOOR UNIT
Height mm 550
Dimensions Width mm 780
Depth mm290
Net weight kg 31
Condenser type Finned tube
Outdoor fan type Propeller fan
Airflow volume m3/h 1740 1850 1740 1850
Fan motor output W30
Compressor Model PA108X1C-4FZDN
Output W 750
Safety device Fuse, Overload relay
Louver type Automatic louver
Usable outdoor temperature range °C 15 ~ 43 −10 ~ 24
m 5
FILE NO. SVM-10036
1. SPECIFICATIONS
38NY009N

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Note : 1
•Capacity is based on the following temperature conditions.
Note : 2
Temperature
Condition
Cooling Heating
Indoor unit inlet air temperature (DB) 27°C 20°C
(WB) 19°C 15°C
Outdoor unit inlet air temperature (DB) 35°C 7°C
(WB) 24°C 6°C
*1 No need to charge extra refrigerant.
JIS C9612
FILE NO. SVM-10036

2. CONSTRUCTION VIEWS
2-1. Indoor Unit
FILE NO. SVM-10036
– 5 –
Wireless remote control
(Flare 9.52)
Ø
19
157
56

2-2. Outdoor Unit
−6 −
FILE NO. SVM-10036
320
306
Z View
600
A detail Drawing (Back leg)
320
306
Ø 25 Drain outlet 11 x 14 Hole
(For 8 - 10 anchor bolt)
B Detail Drawing (Front leg)
FAN-GUARD
COVER-PV
Electrical part cover
Liquid side
(Flare 6.35)
Ø
Ø
Gas side
(Flare9.52)
Service port
4x 11 Long holes(For 8- 10 anchor bolt)
Installation dimension
Air outlel
100 or more
100 or more
600 or more
600 or more
Air intlel
ØØØ
Ø6 hole
86
Ø6 hole
Ø11x14 hole
R15
28 A
320
R5.5
36
108125
50
129
84
54
600
320
9060090
290
550
Ø436
Z
R15
50
36
-
2
320
342
69
ØØØ
275

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3. WIRING DIAGRAM
INDOOR
TERMINAL
BLOCK
IC35
INDOOR
OUTDOOR
CHASSIS
BLK
RED
CAPACITOR
WHI BLK
SOLENOID COIL
BLK
CAPACITOR
FAN
MOTOR
WHI
OUTDOOR
TERMINAL
BLOCK
BLK WHI RED BLU
3
2
14
3
WHI
BLK
CN27
CR02
CR01
21 3
21 3
1
1
53
53
C15
321 6 54 8
7
321 6 54 8
7
WHI
RED
BRW
YEL
BLK
66
4 4
5 5
3 3
1 1
2 2 GRY
AC FAN MOTOR
MAIN P.C. BOARD
WP-015
145CCN10 CN11
1
12
21
12
2
BLK
BLK
BLK
BLK
THERMO
SENSOR (TA) HEAT EXCHANGER
SENSOR (TC)
CN03 CN01
C01 C02 R319
DB01
321 6 54 8
7
321 6 54 8
7
BLU
BLU
BLU
BLU
BLU
BLU
WHI
BLU
CN14
1
12
2CN04 1
534 21
534 2
WHI
YEL
YEL
YEL
LOUVER
MOTOR INFRARED RAYS RECEIVE
AND INDICATION PARTS
CN25
BLK
BRW
BLU
GRN & YEL
SINGLE PHASE
220-240V 50/60Hz
R21
VARISTOR
YEL
PINK
PINK
CN07
THERMAL FUSE
73 C x2
L01
+
C63
Power
Module
Micro
DC12V
Voltage
Regulator
DC5V
L
N
CN31
SG01
DSA R22
VARISTOR
T6.3A 250VAC
3
4
RY01
BLK
P04
3 3
1 1
T02
C.T. RY03 RY04
14
(L)
2
(N)
BLK
RED RED
PNK
COMPRESSOR
OVER LOAD RELAY
BLK
FILE NO. SVM-10036

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4-2.Outdoor Unit
No. Parts name Type Specifications
Output (Rated) 750W , 2poles, 1 phase, 220 −240V, 50Hz
1Compressor PA108X1C-4FZDN Winding resistance (Ω)C-R C-S
(at 20°C) 3.75 4.75
Output (Rated) 30W, 6poles, 1 phase, 220 −240V, 50Hz
2Fan motor (for outdoor) Winding resistance (Red-BlackWhite-Black
(at 20°C) 237
380
3Running capacitor DS451155NPQB AC 450V~, 1.5µ
F
(for fan motor)
4Running capacitor RS44B256U0213S AC 440V~, 25µF
(for compressor)
5Solenoid coil
(for 4-way valve) −
AC 220 − 240V~
WLF-240-30A
Overload relay
LPAP960B U/T: 6.1A(80°C), Open: 135±5°C, Close: 78±11°C
6
4. SPECIFICATION OF ELECTRICAL PARTS
4-1. Indoor Unit
No. Parts name Type Specifications
1Fan motor (for indoor) AFN-220-20-4D AC Motor with 145 °C thermo fuse
2 Thermo sensor (TA-sensor) 10k at 25 C
3Micro power module (M01) GPS-9W-AA
4Microcontroller unit (IC30) TMP87CM40AFG-6P69
5 Heat exchanger sensor 10k at 25 C
(TC-sensor)
6Line filter (L01) *SS11V-R06270 27mH, 600mA
7Bridge rectifier (DB01) DB105G 1A, 600 V
8Capacitor (C63) EKMH401VSN470MP20S 47mF, 400 V
9Fuse (F01) BET6.3A 6.3A, 250VAC
10 Varistor (R21, R22) SR561K14DO 560 V
11 Resistor (R319) RF-2TK5R6 5.6 , 2 W
12 Louver motor 24BYJ48 12VDC
13 Relay (Comp., RY01) G4A-1A-E-CA Rating 20A/AC250 V, 12VDC
14 Relay (Fan, RY03) 202N-1AC-C E Rating 3A/AC250 V, 12VDC
15 Relay (Solenoide, RY04) Rating 3A/AC250 V, 12VDC
W
W
W
°
°
202N-1AC-C E
FILE NO. SVM-10036
Ω)

−9−
FILE NO. SVM-10036
5. REFRIGERATION CYCLE DIAGRAM
l
l
Note :
 Measure the heat exchanger temperature at the center of U-bend. (By means of TC sensor)
Ambient temp.
conditions DB/WB
(°C)
Indoor Outdoor
Standard 2.95 43.5High 20/15 7/6
Heating Overload 3.70 57.0 Low27/−24/18
Low temperature 2.40 32.0 High 20/−−10/−10
Standard 0.9310.5High 27/19 35/24
Cooling Overload 1.08 15.0 High 32/23 43/26
Low temperature 0.69 2.0 Low21/15 21/15
Fan speed
(indoor)
50Hz
Indoor unit
Cross flow fan
Cooling
Heating
4-way valve
Heating Cooling Compressor
Heat exchanger
Propeller fan
Outdoor unit
PA108X1C-4FZDN
Cooling
Heating
Mark( )means check points of Gas Leak.
O.D.:9.52mm O.D.:6.35mm
Cooling
Heating
Packed valve
(∅9.52)
Packed valve
(∅6.35)
0.39m
(Connecting pipe)
∅9.52
0.49m
(Connecting pipe)
∅6.35
T1
P
Refrigerant
R410A : 0.78kg.
Capillary tube
∅1.5x1200
Accumulator
Heat exchanger
Capillary tube
∅1.5x1000
Standar d
pressure
P
(MPaG)
Surface temp. of heat
exchanger inter changing
pipe
T1
(°C)
•