Carrier 42NQ012N User manual

FILE NO. SVM-10031
42NQ012N / 38NY012N
SERVICE MANUAL
AIR-CONDITIONER
SPLIT WALL TYPE
1
2
AM
PM
X
April, 2010

−1−
FILE NO. SVM-10031
CONTENTS
1. SPECIFICATIONS
2.
3.
CONSTRUCTIONVIEWS
2-1 Indoor Unit
2-2 Outdoor Unit
4.
WIRING DIAGRAM
5.
SPECIFICATION OF ELECTRICAL PARTS
5-1 Indoor Unit
5-2 Outdoor Unit
6.
REFRIGERANT CYCLE DIAGRAM
7.
CONTROL BLOCK DIAGRAM
7-5Hi POWER operation
7-6ECO operation
8.
OPERATION DESCRIPTION
7-1 Remote control
7-2 Outline of Air Conditioner Control
7-3Description of Operation Mode
7-4Description of Safety and Reliability Prevention Function
9.
8-1 Safety Cautions
8-2 Installation Diagram of Indoor and Outdoor Units
8-3 Installation
8-4Indoor Unit
7-7FILTER check lamp
7-8Auto Restart Function
INSTALLATION PROCEDURE
8-5Outdoor Unit
8-6Others
TROUBLESHOOTING CHART
9-1 Troubleshooting Procedure
9-2Basic Check Items
9-3Primary Judgement
9-4Self-Diagnosis by Remote Control (Check Code)
9-5Troubleshooting Flowcharts
9-6Troubleshooting for Remote Control (Including The Indoor P.C. Board)

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FILE NO. SVM-10031
10.PARTS REPLACETHE MAIN PARTS
11-1 Indoor Unit
11-2 Microcomputer
11-3 Outdoor Unit
11.EXPLODED VIEWS AND PARTS LIST
11-1 Indoor Unit (E-Parts Assy)
11-2 Indoor Unit
11-4 Outdoor Unit (E-Parts Assy)
11-3 Outdoor Unit

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MODEL 42NQ012N/38NY012N
ITEM Cooling Heating
Capacity 220V 240V 220V 240V
kW 3.70 3.74 4.10 4.20
Phase 1∅
Power source V 220 −240
Hz 50
Power consumption kW 1.141.181.131.17
Power factor %97 88 9686
Running Indoor A 0.15
current Outdoor A5.20 5.455.20 5.55
Starting current A22
Moisture removal lit/h 2.0
Noise Indoor (H/M/L) dB 42/39/36/34/32
Outdoor (220-240V) dB 50 51 50 51
Refrigerant Name of refrigerant
Rated amount
Refrigerant control
Gas side size
Connection type Flare connection
Liquid side sizemm ∅6.35
Interconnection Connection type Flare connection
pipe
Maximum length 15*1
(One way)
Maximum height
difference
INDOOR UNIT
Height mm 275
Dimensions Width mm 790
Depth mm205
Net weight kg 9
Evaporator type Finned tube
Indoor fan type Cross flow fan
High fan m3/h 600620
Airflow volume Medium fan m3/h 430520
Low fan m3/h 380400
Fan motor output W 20
Air filter
Active Carbon Cleaning filter
OUTDOOR UNIT 38NY012N
Height mm 550
Dimensions Width mm 780
Depth mm290
Net weight kg
Condenser type Finned tube
Outdoor fan type Propeller fan
Airflow volume m3/h 2120 2200 2120 2200
Fan motor output W 42
Compressor Model PA145G1C-4FT1
Output W 1100
Safety device Fuse, Overload relay
Louver type Automatic louver
Usable outdoor temperature range °C 15 ~ 43 −10 ~ 24
1. SPECIFICATIONS
R410A
kg 1.05
Capillary tube
mm
m
m6
∅12.7
34
FILE NO. SVM-10031
42NQ012N

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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.
FILE NO. SVM-10031
JIS C9612

190
160.5 160.5 150
215
235 235
215
275
84.5 84.5
40 40
84.5 150 84.5
45
193480
Hanger
Installation plate outline
Hanger
Center line
Hanger
621
Connecting pipe (0.35m) 6.35mm)(Flare
Installation plate hanger
Drain hose (0.50m)
Connecting pipe (0.40m)
Installation plate hanger
(Flare ∅12.70mm)
116
170 or more
170 or more
65 or more
Minimum
distance
towall
Minimum
distance
towall
Minimum
distance
toceiling
FILE NO. SVM-10031
2-1. Indoor Unit
65
51
65
51
205
65 68
48
6
Heat exchanger
Air inlet
Front panel
Knock out system Knock out system
Air filter
>
<
790
275
2.CONSTRUCTION VIEWS
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Wireless remote controller
56 19
157
26
125
63
Remote controller holder

320
306
Z View
600
A detail Drawing (Back leg)
320
306
Ø 25 Drain outlet 11 x 14 Hole
B Detail Drawing (Front leg)
COVER-PV
Electrical part cover
Liquid side
(Flare 6.35)
Ø
Ø
Gas side
(Flare 12.7)
Service port
4x 11 Long holes(For 8- 10 anchor bolt)
Air outlel
100 or more
100 ormore
600 or more
600 ormore
Air intlel
Ø
Ø6 hole
86
Ø6 hole
Ø11x14 hole
R15
28 A
320
R5.5
36
108125
50
129
84
54
600
320
290
550
Z
R15
50
36
-
2
320
342
ØØØ
2.2. Outdoor Unit
FILE NO. SVM-10031
−6−
(For 8- 10 anchor bolt)
FAN-GUARD ØØ
9060090
Ø436
69
275

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3.WIRING DIAGRAM
FILE NO. SVM-10031
BLK
PNK
COMPRESSOR
RED
BLK
CAPACITOR
PNK
COMPRESSOR
WHI
RED
CAPACITOR
BLU
3
14
(L)
2
(N)
BLU
BLK
CAPACITOR
SOLENOID COIL
WHI
BLU
BLK
CAPACITOR
BLU
3
14
(L)
2
(N)
BLU
CAPACITOR
SOLENOID COIL
FAN
BLU
CAPACITOR
BLU
3
14
(L)
2
(N)
BLU
MOTOR
CAPACITOR
WHI
FAN
CAPACITOR
BLU
3
14
(L)
2
(N)
BLU
MOTOR
WHI
3
134 1
(L)
4
2
(L) (N)
2
BLU
(N)
RED
BLU
RED
RED RED
CHASSIS
OUTDOOR
TERMINAL
BLOCK
OUTDOOR

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FILE NO. SVM-10031
4. SPECIFICATION OF ELECTRICAL PARTS
4-1. Indoor Unit
4-2. Outdoor Unit
No. Parts name Type Specifications
Output (Rated) 1100W, 2poles, 1 phase, 220 −240V, 50Hz
1Compressor PA145G1C-4FT1Winding resistance (Ω)C-R C-S
(at 20°C) 2.67 4.48
Output (Rated) 42W, 6poles, 1 phase, 220 −240V, 50Hz
2Fan motor Winding resistance (Ω)Red-BlackWhite-Black
(at 20°C) 188
289
3Running capacitor DS451155NPQB AC 450V, 1.5µF
(for fan motor)
4Running capacitor B32332I5306J063 AC 450V, 30µF
(for compressor)
Solenoid coil
5AC 220 −240V, 50Hz
(for Heat pump
WLF-240-42A
(for outdoor)
(for 4-way valve)
model)
STF-01AJ503H1
GPS-9W-AA DC370V, Secondary DC13V
202N-1AC-C E
No.
C240
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
3 Power Module (M01)
4Microcontroller unit (IC30) TMP87CM40ANG-6P68
5 Heat exchanger sensor 10k at 25 C
(TC-sensor)
6Line filter (L01) LC*SS11V-R06270 27mH, 600mA
7Bridge diode (DB01) DB105G 1A, 600 V
8Capacitor (C03)
400MXC47MEFCSN20X20 47mF, 400 V
9Fuse (F01) BET 6.3A T6.3A, 250VAC
10 Varistor (R06, R07) SR561K14DO 560 V
11 Resistor (R01 ) RF-2TK5R6 5.6 , 2 W
12 Louver motor MP24Z3T 12VDC
13 Relay (Comp., RY01) G4A-1A-E-CA Rating 20A/AC250 V, 12VDC
14 Relay (Fan, RY03)
202N-1AC-C E
Rating 3A/AV, 12VDC
15 Relay (Solenoide, RY04) Rating 3A/AC240V, 12VDC
W
W
W
°
°
°

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FILE NO. SVM-10031
5. REFRIGERATION CYCLE DIAGRAM
Note :
Measure the heat exchanger temperature at the center of U-bend. (By means of TC sensor)
*1 During heating overload operation, a value for the high temperature limit control operation is included.
Ambient temp.
conditions DB/WB
(°C)
Indoor Outdoor
Standard 2.72 46.9High 20/15 7/6
Heating Overload*1 3.70 59.9Low27/−24/18
Low temperature 2.51 37.2High 20/−−10/−10
Standard 0.91 9.5High 27/19 35/24
Cooling Overload 1.26 14.6High 32/23 43/26
Low temperature 0.77 1.5Low 21/15 21/15
Standard
pressure
P
(MPaG)
Surface temp. of heat
exchanger inter changing
pipe
T1
(°C)
Fan speed
(indoor)
50Hz
Heat exchanger
Indoor unit
Cross flow fan
Cooling Heating
4-way valve
Heating Cooling Compressor
Accumulator
Heat exchanger
Propeller fan
Outdoor unit
Capillary tube
∅1.2x500l
Capillary tube
∅1.5x1500l
PA145G1C-4FT1
Cooling
Heating Mark( )means check points of Gas Leak.
O.D.:12.7mm O.D.:6.35mm
Cooling
Heating
Packed valve Packed valve
0.39m
(Connecting pipe) 0.49m
(Connecting pipe)
T1
P
Refrigerant
R410A : 1.05 kg.
(∅12.7) (∅6.35)
∅12.7 ∅6.35
•
•