Haier HPU-42CV03 User manual

Commercial Air Conditioning
SERVICE MANUAL
 Features
 Long distribution pipe and high drop
 The outdoor can match with multiple types indoor unit of the same capacity
 The indoor unit is identical for heat pump and cooling only unit
 Infra red remote controller
 Central control and full automation, if connected with a central controller
 Optional safety devices and much more precision control device
 Auto-restart function
Manual code: SYJS-016-06REV.0 Edition: 2006-06-12
Model
HPU-42CV03
HPU-42HV03

CONTENTS
Contents………………………………………………………...1
1. Description of products& features………………………..2
2. Specification…………………………………………………4
3. Safety precaution……………………………………………7
4. Net dimension of indoor and outdoor……………………..9
5. Installation instructions………..……………………………10
6. Parts and functions…………………………………………21
7. Infrared controller functions………………………………..22
8. Refrigerant diagram....………………………………………39
9. Electrical control functions…………………………………41
10. Diagnostic information (trouble shooting)..……………..47
11. Electrical data....................……………………………….53
1
Commercial Air Conditioner Model: HPU-42CV03
HPU-42HV03

1.DESCRIPTION OF PRODUCTS & FEATURES
1.1. Products code explanation
HP U- 42 C V03
Power supply type: 03 stands for 200-220V, 50Hz
Design sequence
C: cooling; H: heating
Cooling capacity: 42=42000BTU/h
U: single split unit
Product type : “B” stands for cassette type, “C” stands for
convertible type, ”D” stands for duct, “S” stands for split
type, ”P” stands for cabinet system, "E" stands for ceiling
concealed type.
Haier Brand Air Conditioner
1.2 Brief Introduction for T1、T2、T3 working condition
1.3 Operating Range of Air Conditioners
Temp. Mode Rated Maximum Minimum
DB ℃27 32 15
Indoor
WB ℃19 23 14
DB ℃35 43 -5
Cooling
Outdoor
WB ℃24 26 6
DB ℃20 27 10
Indoor
WB ℃14.5 --- --
DB ℃7 23 -10
Heating
Outdoor
WB ℃6 18 ---
Climate type
Type of Air
Conditioner T1 T2 T3
Cooling Only 18 ℃~43℃10℃~35℃21℃~52℃
Heat pump -7℃~43℃-7℃~35℃-7℃~52℃
Electricity Heating ~43℃~35℃~52℃
Commercial Air Conditioner Model: HPU-42CV03
HPU-42HV03
2

Commercial Air Conditioner Model: HPU-42CV03
HPU-42HV03
3
1.5.2 Steady cabinet indoor unit
Powerfull running & long distance air sending
The unit can run powerfully and supply large volume of cooled air to the room. Long distance and
large angle air sending ensures average temperature distribution, bring you much more comfortable
indoor environment in the shortest time.
Newly designed display panel, more simple
On the display panel there are power, operation, timer, and electric heating indicator, from which
you can find the operation state directly, and the indicator flash times can show the failure.
Malfunction Auto-checking
Failure codes displayed by LED or controllers are so detailed for us to find the fail place more
quickly, and can judge the failure content easily.
Powerfull/Soft function
Special button on remoto controller is used to set powerful working or soft working.
Single fan outdoor, more compact
Central control function, if connected with a detector and a central
controller
1.5 Product features
1.5.1 Outdoor unit .
Flexible and easy installation
The outdoor can meet the higher request of installation. From the specifications, you will find for
each unit, how long and how high the piping will be, which will be convenient for design and installation.
Optional safety devices and much more precision control device
a. Ambient temperature sensor,coil temperature sensor and compressor temperature sensor
make the temperature control and defrosting control more precise.
b. High/low pressure switch can feel the discharging pipe pressure and suction pipe pressure on
time and precisely. If the pressure is too low or too high, it will stop the compressor to prevent it
being damaged for the sake of pressure.
c. 3 minutes delay protection for the compressor, the device can protect the compressor from
some damages and make the compressor have a long life.
Silent operation

Function coolin
g
heatin
g
Capacity BTU/h 41000 ----
Capacity kW 12.0
Sensible heat ratio 70% ----
W3700 ----
W 4400 ----
EER or COP W/W 3.24 ----
Dehumidifying capacity 10‐³×m³/h
Power cable section
Signal cable section
Connecting cable section
Wired control cable for wired control unit section //
Power source N, V, Hz
A / A
Start Current A
Class of anti electric shock CLASS I ----
Circuit breaker A
Max. operating pressure of heat side Mpa 2.8 ----
Max. operating pressure of cold side Mpa 2.8 ----
Unit model (color)
Type × Number
Speed(H-M-L) r/min
Fan motor output power kW
Air-flow(H-M-L) m³/h
Type / Diameter mm
Total Area m²
Temp. scope ℃
External （L×W×H）mm×mm×mm
Package （L×W×H）mm×mm×mm
Air sending angle
Drainage pipe (material , I.D./O.D.) mm
Control type (Remote /wired /model)
Fresh air hole dimension mm
Outlet distribution hole dimension mm
kW
dB(A)
kg / kg
External （L×W×H）mm×mm×mm
Package （L×W×H）mm×mm×mm
kg / kg
Unit model (color)
Model / Manufacture
Oil model
Oil type
Oil charging
Type
Protection type
Starting method
Type × Number
Speed r/min
Fan motor output power kW
Air-flow(H-M-L) m³/h
Type / Diameter mm
Row / Fin pitch
Temp. scope ℃
External （L×W×H）mm×mm×mm
Package （L×W×H）mm×mm×mm
Drainage pipe (material , I.D./O.D.) mm
Refrigerant control method mm/mm
Volume of Accumulator L
Noise level dB(A)
material of reduce noise
crankcase heater power W
kg / kg
Type / Charge g
Recharge quantity g/m
Liquid mm
Gas mm
Connecting Method
m
m
Fan
Heat exchanger
Fan
Dimension
Compressor
Capillary tube
Refrigerant
/
51
/
59
840
SCROLL
/
Axial*2
VR54KS-TFP-542/COPELAND
/
/
3GS
1360
Inner thermal protection
hard startup
Type of Four way valve /
/
Defrosting Automatic
/
MAX.Pi
p
in
g
len
g
th 50
Weight (Net / Shipping) 106/111
PIPING
R22/3400
65
Pipe φ9.52
φ19.05
Flared
Between I.D &O.D MAX.Drop 30
1090*410*1350
2/1.6
Heat exchanger
inner grooved/φ9.52
0.06
6000
inner grooved/φ7
Outdoor unit
HPU-42CV03(WHITE)
Weight (Net / Shipping) 59/70
Panel
Dimension 948*340*1250
1850×600×350
Remote
item Model HPU-42CV03
5.0
5G×2.5mm2
Total power input
Max. power input
Running /Max.Running current
centrifugal
Cooling 6.9A/7.8A Heating 7.0/8.3
50
0.45
Weight (Net / Shipping)
1750
Dimension /
1980×660×420
4G×0.75mm2
20
0.09
Norminal condition: indoor temperature (cooling): 27℃DB/19℃WB, indoor temperature (heating): 20℃DB
Outdoor temperature(cooling): 35℃DB/24℃WB, outdoor temperature(heating): 7℃DB/6℃WB
The noise level will be measured in the third octave band limited values, using a Real Time Analyser calibrated sound intensity meter. It is a sound pressure noise level.
The detailed method please refer to the following information:
430/405/370
3N，380-400V，50HZ
Indoor unit
HPU-42CV03(WHITE)
Noise level (H-M-L)
Electricity Heater
2. SPECIFICATION
Commercial Air Conditioner Model: HPU-42CV03
HPU-42HV03

Function cooling heating
Capacity BTU/h 41000 44000
Capacity kW 12.0 13.0
Sensible heat ratio 70%
W3700 4000
W 4400 4900
EER or COP W/W 3.24 3.25
Dehumidifying capacity 10‐³×m³/h
Power cable section
Signal cable section
Connecting cable section
Wired control cable for wired control unit section //
Power source N, V, Hz
A / A
Start Current A
Class of anti electric shock CLASS I CLASS I
Circuit breaker A
Max. operating pressure of heat side Mpa 2.8 2.8
Max. operating pressure of cold side Mpa 2.8 2.8
Unit model (color)
Type × Number
Speed(H-M-L) r/min
Fan motor output power kW
Air-flow(H-M-L) m³/h
Type / Diameter mm
Total Area m²
Temp. scope ℃
External （L×W×H）mm×mm×mm
Package （L×W×H）mm×mm×mm
Air sending angle
Drainage pipe (material , I.D./O.D.) mm
Control type (Remote /wired /model)
Fresh air hole dimension mm
Outlet distribution hole dimension mm
kW
dB(A)
kg / kg
External （L×W×H）mm×mm×mm
Package （L×W×H）mm×mm×mm
kg / kg
Unit model (color)
Model / Manufacture
Oil model
Oil type
Oil charging
Type
Protection type
Starting method
Type × Number
Speed r/min
Fan motor output power kW
Air-flow(H-M-L) m³/h
Type / Diameter mm
Row / Fin pitch
Temp. scope ℃
External （L×W×H）mm×mm×mm
Package （L×W×H）mm×mm×mm
Drainage pipe (material , I.D./O.D.) mm
Refrigerant control method mm/mm
Volume of Accumulator L
Noise level dB(A)
material of reduce noise
crankcase heater power W
kg / kg
Type / Charge g
Recharge quantity g/m
Liquid mm
Gas mm
Connecting Method
m
m
Norminal condition: indoor temperature (cooling): 27℃DB/19℃WB, indoor temperature (heating): 20℃DB
Outdoor temperature(cooling): 35℃DB/24℃WB, outdoor temperature(heating): 7℃DB/6℃WB
The noise level will be measured in the third octave band limited values, using a Real Time Analyser calibrated sound intensity meter. It is a sound pressure noise level.
The detailed method please refer to the following information:
Flared
Between I.D &O.D MAX.Drop 30
MAX.Piping length 50
40
Weight (Net / Shipping) 106/111
PIPING
Refrigerant R22/3400
65
Pipe φ9.52
φ19.05
59
Type of Four way valve /
/
Capillary tube
Defrosting Automatic
/
Dimension 948*340*1250
1090*410*1350
Heat exchanger
inner grooved/φ9.52
2/1.6
Fan
Axial*2
840
0.06
6000
Outdoor unit
HPU-42HV03(WHITE)
Compressor
VR54KS-TFP-542/COPELAND
3GS
1360
SCROLL
Inner thermal protection
hard startup
Weight (Net / Shipping) 59/70
Panel
Dimension /
/
Weight (Net / Shipping) /
Electricity Heater /
Noise level (H-M-L) 51
Remote
/
Dimension 1850×600×350
1980×660×420
Indoor unit
HPU-42HV03(WHITE)
Fan
centrifugal
430/405/370
0.09
1750
Heat exchanger
inner grooved/φ7
0.45
Running /Max.Running current Cooling 6.9A/7.8A Heating 7.0/8.3
50
20
5.0
5G×2.5mm2
4G×0.75mm2
3N，380-400V，50HZ
item Model HPU-42HV03
Total power input
Max. power input
Commercial Air Conditioner Model: HPU-42CV03
HPU-42HV03

outdoor unit:
1.air outlet from side: the noise level is the average sound pressure level measured from front, left,
right directions.
2.air outlet from top: the noise level is the average sound pressure level measured from front, back,
left, right directions.
measured point:
H ( height to the ground) = (h (unit height) + 1m) /2
and, it is 1m to each side.
Note: ⊙is the real time
Installation state: the unit should be placed on the flat floor or be mounted in
horizontal direction.
Testing method:
standing-on-floor unit: If the unit cooling capacity is over 28000W, the noise level should be
measured at the front, left, right directions respectively.
1m
1m
h
1m
1m
1m
1m
Commercial Air Conditioner Model: HPU-42CV03
HPU-42HV03
6

3. Safety precaution of indoor and outdoor
Carefully read the following information in order to operate the airconditioner correctly.
Below are listed three kinds of Safety Cautions and Suggestions.
WARNING!
CAUTION! Incorrect operations may result in injuries or machine damages; in some cases may
cause serious consequences.
Incorrect operations may result in severe consequences of death or serious injuries.
IN TRUCTION : These information can ensure the correct operation of the machine.
Be sure to conform with the following important Safety Cautions.
The afety Cautions should be at hand so that they can be checked at any time when needed.
If the conditioner is transferred to the new user this manual should be as well transferred to the new user.
WARNING!
If any abnormal phenomena is found
(e. g.smell of firing), please cut off the
power supply immediately, and contact
the dealer to find out the handling
method.
Don't dismantle the outlet of the
outdoor unit.
The exposure of fan is very dangerous
whichmay harm human beings.
switch
off
In such case to continue using the
conditioner will damage the conditioner
and may cause electrical shock or fire
hazard.
Incorrect maintenance and repairment
may cause water leak electrical shock
and fire hazard.
When need maintenance and repairment,
call dealer to handle it.
After a long time use of air-conditioner
the base should be checked for any
damages.
If the damaged base is not repaired the
unit may fall down and cause accidents.
Commercial Air Conditioner Model: HPU-42CV03
HPU-42HV03
7

Air-conditioner can't be installed in
the environment with inflammable
gases because the inflammable gases
near to air-conditioner may cause fire
hazard.
Connect earthing wire.
Use discharge pipe correctly to ensure
efficient discharge.
Earthing wire should not be con-
nected to the gas pipe water pipe
lightning rod or phone line in-correct
earthing may cause shock.
Incorrect pipe use may cause water
leaking.
Earthing
WARNING!
Installed electrical-leaking circuit
breaker.
It easily cause electrical shock without
circuit breaker.
Please let the dealer be responsible for
installing the conditioner.
Incorrect installation may cause water
leak electrical shock and fire hazard.
Call the dealer to take measures to
prevent the refrigerant from leaking.
If conditioner is installed in a small
room be sure to take every measure in
order to prevent suffocation accident
even in case of refrigerant leakage.
When conditioner is deinstalled or
reinstalleddealer should be responsible
for them.
Incorrect installation may cause water
leaking electrical shock and fire hazard.
No goods or nobody is permitted to
placed on or stand on outdoor unit.
The falling of goods and people may
cause accidents.
Don't operate the air-conditioner with
damp hands.
Otherwise will be shocked.
Only use correctly-typed fuse.
May not use wire or any other materials
replacing fuse other-wise may cause
faults or fire accidents.
Commercial Air Conditioner Model: HPU-42CV03
HPU-42HV03
8

4. Net dimension of indoor and outdoor
350
350
336 500
1851
600
Commercial Air Conditioner Model: HPU-42CV03
HPU-42HV03
185 185
30
52
88
Screw Hole
(M10)
580
950
Power wiring Terminal
70
1818 38
340
38
380
1250
25
16