Carrier ALLEGRO 42HQE009N User manual

42HQE - 38YE
SERVICE MANUAL
42HQE009N
42HQE012N
38YE009
38YE012N
42HQE018N
38YE018

Service Manual
Split Wall-Mounted Type
Room Air Conditioner
(ALLEGRO SERIES)
Model applied:
42HQE009N/38YE009
42HQE012N/38YE012N
42HQE018N/38YE018

Contents
1. Features 60
2. Specification 61
3. Dimensions 67
4. Refrigeration cycle diagram 70
5. Operation limits 71
6. Wiring diagram 72
2
7. Specification of electrical parts
8. Troubleshooting 80
3
4
6
8
9
10
13
14
14
21
9. Electronic function
10. Exploded view and spare parts list

3
1. Features
1.1 Compact design.
1.2 Quiet operation.
1.3 Anti-icing function at cooling mode.
1.4 Anti-cold air function at heating mode.
1.5 Auto-defrosting and heating recovering function at heating mode.
1.6 Outdoor unit overload current protection.
1.7 Restart function.
1.8 24 hours on/off mode time setting.
1.9 Error self diagnosis function.

4
2.Specification
Model 42HQE009N/38YE009 42HQE012N/38YE012N 42HQE018N/38YE018
Power supply Ph-V-Hz 1, 220-240V~, 50Hz 1, 220-240V~, 50Hz 1, 220-240V~, 50Hz
Capacity Btu/h 9000 12000 17000
Rated Input W1040 1320 1980
Rated current A4.6 5.8 8.9
Cooling
EERW/W2.502.66 2.42
Capacity Btu/h
10500 14000 21000
Rated Input W
1150 1360 2200
Rated current A5.0 6.0 9.9
Heating
COP W/W
2.7 3.02 2.82
MoistureRemoval L/h 1.0 1.2 1.6
Max. input consumption W 1250 1700 2600
Max.current A 6 7.8 13.0
StartingcurrentA19.825 45
Model PG180X1C-4FT3 PG225X2C-4FT PG330*2CS-4KU3
Type Rotary Rotary Rotary
Brand TOSHIBA TOSHIBA TOSHIBA
Capacity Btu/h 10800 13550/13700 20130/20267
Input W1015 1290/1335 1980/2105
Rated current(RLA) A4.5 6.1 9.7/10.3
Thermal protector UP3SE0591-T61 UP3RE0591-T56 Internal
Capacitor uF 30 35 40UF/370V
Compressor
Refrigerant oil ml
RB68AF/T68/α68TF
400
RB68AF/T68/α68TF
480
750
Model RPG13H RPG20D RPG25
Brand Welling Welling Welling
Input W 38.5 49.2 53
Capacitor uF 1.2 1.5 1.5
Indoor fan motor
Speed(hi/mi/lo) r/min 1100/1020/950 1060/900/800 1260/1100/1000
a.Number of rows 2 2 2
b.Tube pitch(a)xrow pitch(b) mm 21x13.37 21×13.37 21×13.37
c.Fin spacing mm 1.3 1.3 1.3
d.Fin type (code) Hydrophilic aluminium Hydrophilic aluminium Hydrophilic aluminium
e.Tube outside dia.and type mm φ7 Innergroove tube φ7, innergroove tube φ7,innergroove tube
f.Coil length x height x width mm 578X252X26.74 635×315×27.34 660×231×27.34
Indoor coil
g.Number of circuits 2 2 3
Indoor fan Type mm Crossflow Crossflow Crossflow
Indoor air flow (Hi/Mi/Lo) m3/h 470/440/410 580/550/520 800/770/740
Indoor Sound pressure (Hi/Mi/Lo)
(LPA) @cooling
dB(A) 39/35/33 38/34/32 46/43/40
Indoor Sound power (Hi/Mi/Lo)
(LWA) @cooling
dB(A) 54/51/48 52/48/47

5
Dimension (W*H*D) mm 750x250x188 815X280X195 906X286X235
Packing (W*H*D) mm 830x336x280 915X360X275 1020X380X328
Indoor unit
Net/Gross weight Kg 8.5/10.5 10.5/13.5 13.5/16.5
Model YDK25-6C YDK25-6C YDK53-6K
Brand Welling WELLING WELLING
Input W85 85 93
CapacitoruF2.52.5μF/450V 3.0µF/450V
Outdoor fan motor
Speed r/min 900 900 640
a.Number of rows1 22
b.Tube pitch(a)xrow pitch(b) mm 25.4X22 21x13.37 25.4x22
c.Finspacingmm1.41.5 1.7
d.Fin type (code) Hydrophilic aluminium Hydrophilic aluminium Hydrophilic aluminium
e.Tube outside dia.and type mmФ9.53,innergroove tube Ф7,innergroove tube Ф9.53,innergroove tube
f.Coil length x height x width mm 754X508X22 750×508×26.74 797x660x44
Outdoor coil
g.Number of circuits2 24
Outdoor fan Type and Diameter mm Propeller Propeller Propeller
Outdoor air flow m3/h 1900 1900 2300
Outdoor Sound pressure
(LPA) @cooling
dB(A) 52 52 54
Outdoor Sound power
(LWA) @cooling
dB(A) 62 62
Dimension(W*H*D) mm 780X540X250 780×540×250 845X695X335
Packing (W*H*D) mm 910X575X335 910×575×335 970X770X395
Outdoor unit
Net/Gross weight Kg 36/39 37/40 55/60
Refrigerant type R407c g840 1150 2100
Design pressure MPa 2.8 2.8 2.8
Liquid side/ Gas side mm(inch) Ф6.35/Ф9.53 Ф6.35/Ф12.7 Ф6.35/Ф12.7
Max. refrigerant pipe length m 10 10 15
Refrigerant piping
Max. difference in level m 5 5 8
A
dditional refrigerant
charge over 5m
g/m 30 30 30
Main mm
Φ2.5*1.5*650 Φ3.2*1.7*850 Φ3.2*1.9*820
Expansion device
(Capillary)Sub mm
Φ2.5*1.5*750 Φ3.2*1.7*800 Φ3.2*1.9*500
Operationtemp ℃17-30 17-30 17-30
A
mbienttemp ℃—7-43 —7-43 —7-43
A
pplication area m2 14-21 18-26 30-40
Remarks:
1.Cooling capacities are based on indoor air temp. 27℃DB, 19℃WB and outdoor air temp. 35℃DB,
and 24℃WB. Heating capacities are based on indoor air temp. 20℃DB, 15℃WB and outdoor air
temp. 7℃DB, and 6℃WB.
2. Indoor Sound Pressure level is measured in free field (JIS 9612 std) at 1m distance.
Outdoor Sound Pressure level is measured in hemispherical field, at 4m distance from the unit.
these values are normally somewhat different as a result of ambient condition.

3. Dimensions
3.1 Indoor unit 42HQE009N
3.2 Indoor unit 42HQE012N
6

3.3 Indoor unit 42HQE018N
3.4 Outdoor unit 38YE009 / 38YE012N
3.5 Outdoor unit 38YE018N
12. 5
7

4. Refrigeration cycle diagram
Cooling & heating
Indoor unit outdoor unit
8
Auxiliary accumulator for 12K
Valve
Sensor of room temp
. 4wayvalve
Heat exchanger Heat exchanger
Sensor of heat exchanger temp Accumulator
.
Compressor
Valve Capillary

5.Operation limits
5.1Cooling operation
Outdoor unit air temp.℃DB
45
9
40
35
30
25
20
10 15 20 25 30 35 40
Indoor air temp. ℃DB
Note : The chart is the result from the continuous operation under constant air temperature
conditions. However, excludes the initial pull-down stage.
5.2Heating operation
Indoor air temp. ℃DB
30
25
20
15
10
5
DRY COOLING
-5 5 15 25
Outdoor unit air temp.℃DB
Note : The chart is the result from the continuous operation under constant air
temperature conditions. However, excludes the initial pull-down stage.