Haier AU042FPERA User manual

SYJS-01-2017 REV.A Edition: 2017-01
Service Manual
MRV SII (4-6HP)

CONTENTS
1. General Information............................................................................................................................................. 1
1.1 Outdoor Models and External Appearance ................................................................................................... 1
1.2 Feature ......................................................................................................................................................... 2
2. Specication ........................................................................................................................................................ 3
3. Dimension ........................................................................................................................................................... 7
4. Piping Diagram................................................................................................................................................... 8
5. Wiring Diagram................................................................................................................................................. 10
6. Capacity Calculation Due to Capacity Modication Coefcient......................................................................... 12
7. Operation Range ............................................................................................................................................... 14
8. Sound Level ...................................................................................................................................................... 15
9. Outdoor Piping Installation ................................................................................................................................ 16
9.1 Safety .......................................................................................................................................................... 16
9.2 Installation Instruction.................................................................................................................................. 18
9.3 Trial Operation and the Performance .......................................................................................................... 28
10. Outdoor Wiring Installation .............................................................................................................................. 30
11. Outdoor Unit PCB ............................................................................................................................................ 32
12. Dip Switch Setting ........................................................................................................................................... 33
13. Monitor Tools ................................................................................................................................................... 35
14. Outdoor Unit Control ....................................................................................................................................... 37
15. Failure Code.................................................................................................................................................... 41
16. Troubleshooting............................................................................................................................................... 45
Appendix I: Sensor Resistance Table.................................................................................................................... 65
Appendix II: Enthalpy-Humidity Chart ................................................................................................................... 74

1
1. General Information
1.1 Outdoor models and external appearance
AU042FPERA
AU052FPERA
AU062FPERA
AU04IFPERA
AU05IFPERA
AU06IFPERA

2
AVERAGE
EER
11%
1
2
3
4
5
67
8
9
11
1.2 Feature
New platform, new outlook
High energy efciency
Comfort
Convenience
Spiral air outlet grille
Better outlook and lower noise
DC inverter compressor
Haier takes DC INV. compressor, 5% power input lower. (14kw)
DC fan motor and 550mm big fan
38% power input lower and 8% airow higher
Larger heat exchanger
Heat exchange area rise 10%. (14kw)
Charge Valve
Built-in charge valve enables safer and easier maintenance
Low standby power
New PCB program, reduce 20% standby power consumption
New aerodynamics fan
550mm super big diameter aerospace helix fan. Lowering sound level 3 dB(A)
Enlarged air inlet path and spiral air outlet path
Air ow direction follows the grill direction. Lowering sound level 2-4 dB(A)
Automatic sound-lowering program
Night mode set by PCB, 8dB(A) lower
Double side “4 ” handles
Easy to carry
“888” test panel
All running data & error code can be checked from "888" screen, which
is easy for installers
“Four-way” pipe connection
4-way (front, back, left & right) pipe connection, easy to design and install
Built-in charge valve
Safer and easier maintenance
Round corner
Better outlook & safer
1
2
3
4
5
6
7
8
9
0
1
11

3
2. Specication
Model AU042FPERA AU052FPERA AU062FPERA
Power supply Ph/V/Hz 1Ph,220-230V,50/60Hz
Cooling
Rated capacity kW 12.60 14.00 15.50
Rated capacity kBtu/h 42.99 47.77 52.89
Capacity (46°C) kW 11.2 12.6 14
Rated power input kW 3.11 3.51 4.31
Power input (46°C) kW 3.77 4.25 5.22
Max. power input kW 7.20 7.50 7.80
EER 4.05 3.99 3.60
Rated current A 14.73 16.62 20.41
Max. current A 34.09 35.51 36.93
Heating
Rated capacity kW 14.20 16.00 18.00
Rated capacity kBtu/h 48.45 54.59 61.42
Rated power input kW 3.18 3.72 4.39
Max. power input kW 6.9 7.2 7.5
COP 4.47 4.30 4.10
Rated current A 15.06 17.61 20.79
Max. current A 32.67 34.09 35.51
Compressor
Brand MITSUBISHI ELECTRIC
Model MNB42FFAMC-L
Type Rotary Rotary Rotary
Compressor quantity 1 INV 1 INV 1 INV
Capacity W 13780 13780 13780
Power Input W 4130 4130 4130
Rated current(RLA) A 15.8 15.8 15.8
Speed rps 75 80 85
Crankcase Heater W 33 33 33
Refrigerant oil brand IDEMITSUKOSAN CO.LTD
Refrigerant oil type FV50S FV50S FV50S
Refrigerant oil charge ml 1100 1100 1100
Outdoor fan motor
Brand NIDEC NIDEC NIDEC
Model SIC-88FWJ-F1180-1
Voltage 310V 310V 310V
IP Class IP44 IP44 IP44
Type DC DC DC
Insulation class E E E
Safe class I I I
Power Input W 180 180 180
Output W 120 120 120
Rated current A 0.4 0.4 0.4
Capacitor μF ///
Speed rpm 900 900 900

4
Model AU042FPERA AU052FPERA AU062FPERA
Power supply Ph/V/Hz 1PH,220-230V,50/60Hz
Outdoor
fan
Brand Haier Haier Haier
Model / / /
Material Plastic Plastic Plastic
Type Axial Axial Axial
Diameter mm 550 550 550
Height mm 200 200 200
Outdoor
coil
Number of rows 2 2 2
Tube pitch(a)x row pitch(b) mm 21*18.186 21*18.186 21*18.186
Fin spacing mm 1.4 1.4 1.4
Fin type (code) Hydrophilic aluminium
Fin Coating Type Optional Clear lacquer Clear lacquer Clear lacquer
Salt Spray Test Duration Hour 168 168 168
Tube outside dia. and type Inner groove tube
mm Ф7 Ф7 Ф7
Coil length x height mm 1077*1315 1077*1315 1077*1315
Number of circuits 7 7 7
Cabinet
coating
Coating type Powder coating Powder coating Powder coating
Salt Spray Test Duration Hour 72 72 72
Sheet Metal Material Hot zinc plate Hot zinc plate Hot zinc plate
Sheet Metal Thickness mm 0.8 0.8 0.8
Control panel enclosure IP class Standard IP24 IP24 IP24
Outdoor air ow m3/h 7200 7200 7200
Outdoor sound level(sound pressure level) dB(A) 50 51 53
Outdoor sound level(sound power level) dB(A) 68 69 70
Outdoor
unit
Dimension(W*H*D) mm 950/370/1340 950/370/1340 950/370/1340
Packing (W*H*D) mm 1023/471/1420 1023/471/1420 1023/471/1420
Net weight kg 115 115 115
Gross weight kg 123 123 123
Refrigerant Type R410A R410A R410A
Charged volume kg 4 4 4
Throttle type EXV EXV EXV
Design pressure MPa 4.15 4.15 4.15
Refrigerant
piping
Liquid pipe mm 9.52 9.52 9.52
Gas pipe mm 15.88 15.88 15.88
Total pipe length m 300 300 300
Max. pipe length
(Equivalent/ Actual) m 175/150 175/150 175/150
Max. Diff. indoor/outdoor unit m 50 (Outdoor higher than indoor)
40 (Indoor higher than outdoor)
Max. Diff. indoor/indoor unit m 15 15 15
Connectable indoor unit ratio % 50%~130% 50%~130% 50%~130%
Maximum indoor units Piece 8 10 13
Connection
wiring
Power wiring mm210 10 10
Signal wiring mm2Shield wire:(0.75-2)*2
Operation Range °C Cooling:-15~48
Heating:-20~27
Norminal condition: indoor temperature (cooling): 27°C DB/19°C WB, indoor temperature (heating):
20°CDB/14.5°C WB.
Outdoor temperature(cooling): 35°C DB/24°C WB, outdoor temperature(heating): 7°C DB/6°C WB The data is
measured with 7.5m equivalent pipe and 0 m height difference.
The noise level will be measured in the third octave band limited values in the semi-anechoic chamber, using a
Real Time Analyser calibrated sound intensity meter. It is a sound pressure noise level.

5
Model AU04IFPERA AU05IFPERA AU06IFPERA
Power supply Ph/V/Hz 3N,380-400V,50/60Hz
Cooling
Rated capacity kW 12.60 14.00 15.50
Rated capacity kBtu/h 42.99 47.77 52.89
Capacity (46°C) kW 11.2 12.6 14
Rated power input kW 3.11 3.51 4.31
Power input (46°C) kW 3.77 4.25 5.22
Max. power input kW 7.20 7.50 7.80
EER 4.05 3.99 3.60
Rated current A 4.92 5.56 6.82
Max. current A 11.40 11.87 12.35
Heating
Rated capacity kW 14.20 16.00 18.00
Rated capacity kBtu/h 48.45 54.59 61.42
Rated power input kW 3.18 3.72 4.39
Max. power input kW 6.9 7.2 7.5
COP 4.47 4.30 4.10
Rated current A 5.03 5.89 6.95
Max. current A 10.92 11.40 11.87
Compressor
Brand MITSUBISHI ELECTRIC
Model MNB42FFDMC-L
Type Rotary Rotary Rotary
Compressor quantity 1 INV 1 INV 1 INV
Capacity W 13780 13780 13780
Power Input W 4060 4060 4060
Rated current(RLA) A 12.3 12.3 12.3
Speed rps 75 80 85
Crankcase Heater W 33 33 33
Refrigerant oil brand IDEMITSUKOSAN CO.LTD
Refrigerant oil type FV50S FV50S FV50S
Refrigerant oil charge ml 1400 1400 1400
Outdoor fan motor
Brand NIDEC NIDEC NIDEC
Model SIC-88FWJ-F1180-1
Voltage 310V 310V 310V
IP Class IP44 IP44 IP44
Type DC DC DC
Insulation class E E E
Safe class I I I
Power Input W 180 180 180
Output W 120 120 120
Rated current A 0.4 0.4 0.4
Capacitor μF ///
Speed rpm 900 900 900

6
Model AU04IFPERA AU05IFPERA AU06IFPERA
Power supply Ph/V/Hz 3N,380-400V,50/60Hz
Outdoor
fan
Brand Haier Haier Haier
Model / / /
Material Plastic Plastic Plastic
Type Axial Axial Axial
Diameter mm 550 550 550
Height mm 200 200 200
Outdoor
coil
Number of rows 2 2 2
Tube pitch(a)x row pitch(b) mm 21*18.186 21*18.186 21*18.186
Fin spacing mm 1.4 1.4 1.4
Fin type (code) Hydrophilic aluminium
Fin Coating Type Optional Clear lacquer Clear lacquer Clear lacquer
Salt Spray Test Duration Hour 168 168 168
Tube outside dia. and type Inner groove tube
mm Ф7 Ф7 Ф7
Coil length x height mm 1077*1315 1077*1315 1077*1315
Number of circuits 7 7 7
Cabinet
coating
Coating type Powder coating Powder coating Powder coating
Salt Spray Test Duration Hour 72 72 72
Sheet Metal Material Hot zinc plate Hot zinc plate Hot zinc plate
Sheet Metal Thickness mm 0.8 0.8 0.8
Control panel enclosure IP class Standard IP24 IP24 IP24
Outdoor air ow m3/h 7200 7200 7200
Outdoor sound level(sound pressure level) dB(A) 50 51 53
Outdoor sound level(sound power level) dB(A) 68 69 70
Outdoor
unit
Dimension(W*H*D) mm 950/370/1340 950/370/1340 950/370/1340
Packing (W*H*D) mm 1023/471/1420 1023/471/1420 1023/471/1420
Net weight kg 115 115 115
Gross weight kg 123 123 123
Refrigerant Type R410A R410A R410A
Charged volume kg 4 4 4
Throttle type EXV EXV EXV
Design pressure MPa 4.15 4.15 4.15
Refrigerant
piping
Liquid pipe mm 9.52 9.52 9.52
Gas pipe mm 15.88 15.88 15.88
Total pipe length m 300 300 300
Max. pipe length(Equivalent/
Actual) m 175/150 175/150 175/150
Max. Diff. indoor/outdoor unit m50 (Outdoor higher than indoor)
40 (Indoor higher than outdoor)
Max. Diff. indoor/indoor unit m 15 15 15
Connectable indoor unit ratio % 50%~130% 50%~130% 50%~130%
Maximum indoor units Piece 8 10 13
Connection
wiring
Power wiring mm2444
Signal wiring mm2Shield wire:(0.75-2)*2
Operation Range °C Cooling:-15~48
Heating:-20~27
Norminal condition: indoor temperature (cooling): 27°C DB/19°C WB, indoor temperature (heating):
20°CDB/14.5°C WB.
Outdoor temperature(cooling): 35°C DB/24°C WB, outdoor temperature(heating): 7°C DB/6°C WB The data is
measured with 7.5m equivalent pipe and 0 m height difference.
The noise level will be measured in the third octave band limited values in the semi-anechoic chamber, using a
Real Time Analyser calibrated sound intensity meter. It is a sound pressure noise level.

7
1340
370
950
600
406 450
3. Dimension

8
4. Piping Diagram
Ta
Te
Condensor
Td
Inverter compressor
d
s
c
e
4wv
Gas pipe stop valve
Pd
HPS
Ts
PMV
Ps
SV1
EEV Subcooler
Tc1
Tc2
Liquid pipe
stop valve Gas-liquid segregator
Oil segregator