Haier AU142AFBEA User manual

ROOM AIR CONDITIONER
OUTDOOR UNIT
No.0010572472
H
Before using the air conditioner,please read this manual carefully.
Please keep this manual properly for future use.
AU182AFBEA
AU36NAIBEA
AU42NAIBEA
AU52NAIBEA
CONTENTS
Name of Parts----------------------1
Safety Cautions------------------2-3
Installation Procedure---------4-13
AU242AHBEA
AU282AHBEA
AU28NAHBEA
INSTALLATION INSTRUCTIONS
AU142AFBEA

Air inlet
Air outlet
(Inside of unit)
Compressor
Name of Parts
Air inlet
Air outlet
(Inside of unit)
Compressor
Air inlet
Air outlet
(Inside of unit)
Compressor
AU242AHBEA
AU282AHBEA
AU28NAHBEA
1
AU36NAIBEA
AU42NAIBEA
AU52NAIBEA
AU182AFBEAAU142AFBEA
Air inlet
Air outlet
(Inside of unit)
Compressor

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.
INSTRUCTIONS: These information can ensure the correct operation of the machine.
Be sure to conform with the following important Safety Cautions.
The Safety 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.
Safety Cautions
Carefully read the following information in order to operate the airconditioner
correctly.
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.
2

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
Safety Cautions
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 respon-
sible 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.
3

Note :
(1). Fix the parts with screws
(2).Don't intake the strong wind directly to the
outlet air-flow hole.
(3).A one meter distance should be kept from the
unit top
(4).Don't block the surroundings of the unit with
sundries
Installation Procedure
2. Selection of the place of installation
1. Accessories
"Edging" for protection of electric wires from an
opening edge.
Select the place of installation satisfying the following conditions and, at the
same time, obtain a consent from the client or user.
Edging
Place where air circulates.
Place free from heat radiation from other heat sources.
Place where drain water may be discharged.
Place where noise and hot air may not disturb the neighborhood.
Place where there is not heavy snowfall in the winter time.
Place where obstacles do not exist near the air inlet and air outlet .
Place where the air outlet may not be exposed to a strong wind.
Place surrounded at four sides are not suitable for installation. A 1m or more
of overhead space is needed for the unit.
Mount guide-louvers to place where short-circuit is a possibility.
When installing several units, secure sufficient suction space to avoid short
circuiting.
Wind direction
NO
(2) Installation where the area with strong winds.
Install the unit so that the air outlet section of the unit must NOT be faced
toward wind direction.
(1) Open space requirement around the unit
L2
L3
L1
500
(Servicing
space)
Air outlet
Air inlet
Air
inlet
Case
Distance
Unit: mm
open open
open
500
150
150 300
300 0
L1
L2
L3
III III
Installation of outdoor unit
4

(2) Installation sketch of outdoor unit
(a) Concrete foundation (b) Foundation anchor
Concrete foundation
(b) Foundation anchor
(a) Concrete foundation
Unit
Anchor bolt
Power Wiring Terminal
Power Wiring
Distribution Hole
25
780
3. Installation of outdoor unit
Fix the unit in a proper way according to the condition of a place where it is
installed by referring to the following .
(1) Installation
Install the unit so that the angle of inclination must be less than 3 degrees.
Note: (1) Give enough room for the concrete
foundation to fix by anchor bolts. Note: (1) Place the concrete foundation deep enough.
AU142AFBEA AU182AFBEA AU242AHBEA AU282AHBEA AU28NAHBEA
AU36NAIBEA AU42NAIBEA AU52NAIBEA
Installation of outdoor unit
5
Anchor bolt
Concrete foundation
Unit
To fix by bolts
Installation Procedure
Unit
To fix by bolts
Anchor bolt Concrete foundation
Unit
Concrete foundation
Anchor bolt
640
AU142AFBEA

580
288 315
Installation of outdoor unit
6
AU182AFBEA
AU242AHBEA AU282AHBEA AU28NAHBEA
580
340
380
Installation Procedure
Power Wiring Terminal
Power Wiring
Distribution Hole
25
948
840
810
680
Power Wiring Terminal
Power Wiring
Distribution Hole
500
270

Outdoor
unit
3-way stop valve
Gas pipe
Liquid
pipe
Flare connection
Indoor
unit
Outdoor
unit
Gas pipe
Liquid
pipe
Flare connection
Indoor
unit
3-way stop valve
3-way stop valve
Flare connection
(1) Outline piping
4. Refrigerant piping
AU36NAIBEA AU42NAIBEA AU52NAIBEA
AU142AFBEA
AU182AFBEA
AU36NAIBEA
AU42NAIBEA
AU52NAIBEA
Installation of outdoor unit
7
3-way stop valve
AU242AHBEA
AU282AHBEA
AU28NAHBEA
580
340
380
Installation Procedure
948 Power wiring Terminal
25
1250

(2) Piping size
Gas pipe 15.88x1.0mm
Install the removed flare nuts to
the pipes to be connected, then
flare the pipes.
Liquid pipe
Gas pipe
9.52x0.8mm
15.88x1.0mm
Liquid pipe
Gas pipe
9.52x0.8mm
19.05x1.0mm
Liquid pipe 6.35x0.8mm
(3) Limitations for one way piping length and vertical height difference.
Precautions for refrigerant piping
Do not twist or crush piping.
Be sure that no dust is mixed in piping.
Bend piping with as wide angle as possible.
Keep insulating both gas and liquid piping.
Check flare-connected area for gas leakage.
Connecting method (indoor unit)
Apply refrigerant oil at half union as large and flare nut.
To bend a pipe, give the roundness as possible not to crush
the pipe.
When connecting pipe, hold the pipe centre to centre then
screw nut on by hand, refer to Fig.
Be careful not to let foreign matters, such as sands enter
the pipe.
(4) Piping connection
Forced fastening without centering
may damage the threads and cause a
gas leakage.
Gas pipe 12.7x1.0mm
Liquid pipe 6.35x0.8mm
Pipe dia Fastening torque
Liquid pipe 6.35mm
Gas pipe 15.88mm
Liquid pipe 9.52mm
Gas pipe 19.05mm
14.2-17.2N.m
61.8-75.4N.m
32.7-39.9N.m
97.2-118.6N.m
Gas pipe 12.7mm 49.5-60.3N.m
AU36NAIBEA
AU42NAIBEA
AU52NAIBEA
AU182AFBEA
Refrigerant piping
8
90+0.5
AU242AHBEA
AU282AHBEA
AU28NAHBEA
Installation Procedure
AU142AFBEA
Model
One way piping length Vertical height difference
(between indoor and outdoor)
less than 40 m
AU36NAIBEA AU42NAIBEA
AU52NAIBEA
AU142AFBEA AU182AFBEA
AU242AHBEA AU282AHBEA
AU28NAHBEA
less than 50 m
less than 15 m
less than 30 m

In the first to third test steps, if the pressure drops, check the leakage in each joint
use sense of hearing, feeling and soap water, etc. methods to find the leaking point.
After confirming the leaking point, welding it again or tighten the nut tightly again.
Checking the leaking point
First step: 0.3MPa (3.
0kg/cm2g) pressurize
over 3 minutes.
Second step: 1.5Mpa
(15kg/cm2g) pressurize
over 3 minutes. Large
leakage will be found.
Third step: 3.0 MPa
(30kg/cm2g) pressurize
about 24 hours. Little
leakage will be found.
After finishing connection of refrigerant pipe, it shall perform air tightness test.
The air tightness test adopts nitrogen tank to give pressure according to the pipe connection
mode as the following figure shown.
The gas and liquid valve are all in close state. In order to prevent the nitrogen entering the
circulation system of outdoor unit, tighten the valve rod before giving pressure (both gas
and liquid valve rods).
Outdoor
Completely tightened
Completely tightened
Flare part
Outdoor units
Manhole
Discharging valve
3-way valve totally closed
(Gas side)
Low pressure peizometer
High pressure peizometer
Meter separator
Dropping valve
3-way valve totally closed
(Liquid side)
Nitrogen tank
VL VH
Indoor units
Indoor
Flare part
9
From pressurizing to 24 hours later, each 1* difference of ambient temperature
will make 0.01MPa(0.1kg/cm2g) pressure change. It shall be corrected during test.
Check if the pressure drops
The pressure does not drop-passed
The pressure drops-check the leaking point.
5. Air discharging method
CYLINDER
OF
NITROGEN
SERVICE
HOUSE
LARGE
SLIP-ON
CONNECTOR
SWEAT
JOINT
TUBING
BRING
BRAZED
LINE
PRESSURE
GAUGE
CYLINDER
PRESSURE
GAUGE
Installation Procedure
Refrigerant piping

It shall use the vacuum pump of (lower than -755mmHg)high vacuum degree and large air
discharging (over 40l/min).
The vacuumizing time depends on the length of the connecting pipe, generally is 1~2 hours.
When vacuumizing, it shall be confirmed both gas and liquid side valves are closed.
If after 2 hours vacuumizing, it cannot reach the vacuum degree below -755mmHg, it can be
vacuumized for other 1 hour.
If after 3 hours vacuumizing, it still cannot reach the vacuum degree below -755mmHg, check
if there is any leaking point and repair the them.
If after over 2 hours vacuumizing, the vacuum degree is below -755mmHg, close the VL
and VH on the meter separator and stop vacuumizing. 1 hour later to confirm if the vacuum
degree changes. If changes, it indicates there is leaking point in the system. Check the leaking
point and repair.
After finishing the above vacuumizing, change the vacuum pump into refrigerant pump to
charge the refrigerant.
Use vacuum pump to perform vacuumizing. It is strictly forbidden to use the
refrigerant to remove the air inside the system.
After air tightness test and discharging all the nitrogen, connect the vacuum pump
as the following figure shown.
Refrigerant piping
10
When the total length (L) of the two indoor units' connecting pipe is less than 5m, it is
unnecessary to charge additional refrigerant.
If the connecting pipe (L) exceeds 5m, it shall charge Mg additional refrigerant per meter.
That is: Refrigerant charging amount = (L-5) x M (g)
For AU142AFBEA, AU182AFBEA, M=30
For AU242AHBEA, AU282AHBEA, AU28NAHBEA, AU36NAIBEA,
AU42NAIBEA, AU52NAIBEA
M=65
Only in COOLING operation can charge the additional refrigerant.
When charging, the refrigerant shall be charged from the charging nozzle of low pressure vavle.
Be carefull when charging refrigerant, do not let the air mix into the system,and must charge the
additional refrigerant in liquid condition.
6. Piping and indoor unit vacuumizing
7. Charging amount of refrigerant
3-way valve totally closed
(Liquid side)
Indoor units
Indoor Outdoor
Completely tightened
Completely tightened
Outdoor units
Vacuum pump
Discharging valve
3-way valve totally closed
(Gas side)
Low pressure peizometer
High pressure peizometer
Meter separator
V L VH
Flare part
Flare part
P
Installation Procedure

5. Electric wiring
DANGER OF BODILY INJURY OR DEATH
TURN OFF ELECTRIC POWER AT CIRCUIT BREAKER OR POWER
SOURCE BEFORE MAKING ANY ELECTRIC CONNECTIONS.
GROUND CONNECTIONS MUST BE COMPLETED BEFORE MAKING
LINE VOLTAGE CONNECTIONS.
(1) Selection of size of power supply and interconnecting wires.
Precautions for Electric wiring
Electric wiring work should be conducted only by authorized personnel.
Do not connect more than three wires to the terminal block. Always use round
type crimped terminal lugs with insulated grip on the ends of the wires.
Use copper conductor only.
Select wire sizes and circuit protection from table below. (This table shows 20 m
length wires with less than 2% voltage drop.)
WARNING
(2) Wiring connection
Make wiring to supply power to the outdoor unit, so that the power for the indoor
unit is supplied by terminals.
30mA
Item
Model Phase
3
Switch breaker
(A)
Circuit breaker
Overcurrent protector
rated capacity (A)
Power source
wire size
(minimum)
30 20 4.0mm2
140 26 2.5mm2
Switch
breaker
Earth leakage breaker
Leak
current
30 30mA
40
11
AU42NAIBEA
AU182AFBEA
AU242AHBEA
For: AU142AFBEA, AU182AFBEA
AU52NAIBEA
Installation Procedure
Electric wiring
AU36NAIBEA
AU28NAHBEA
For the detailed wiring connection with the indoor units, see the corresponding indoor
operation and instruction manual.
AU142AFBEA
OUTDOOR UNIT
TERMINAL BLOCK
Y/G
1 2 3
WBRY/G
FIG.1
To Indoor Unit
AU282AHBEA
330 2.5mm230 30mA
20
30mA
140 26 4.0mm240 30mA
140 26 6.0mm240

Electric wiring
12
(3) Wiring procedure
1) Remove set screws on the side before taking off the front panel toward
the direction shown in figure.
2) Connect wires to the terminal block correctly and fix the wires with a
wire clamp equipped nearby the terminal block.
3) Route the wires in a proper way and penetrate the wires through the
opening for electric wiring on the side panel.
WARNING
DO NOT CONNECT THE NEUTRAL WIRE TO , OR PHASE.
INTERCONNECTING WIRES MUST BE WIRED ACCORDING TO FIG.1
FIG.2 FIG.3.INCORRECT WIRING CAUSE EQUIPMENT DAMAGE.
N R S T
For :AU242AHBEA, AU282AHBEA
For:AU28NAHBEA, AU36NAIBEA, AU42NAIBEA, AU52NAIBEA
OUTDOOR UNIT
TERMINAL BLOCK
POWER SUPPLY:
380-400V,3N~,50Hz
N 1 2 3
Y/G
1PH,220-230V~,50Hz
POWER SUPPLY:
OUTDOOR UNIT
TERMINAL BLOCK
L N
1 2 3
WBR Y/G
Y/G
W B Y/G
FIG.3
FIG.2
Installation Procedure
To Indoor Unit
To Indoor Unit
R S T
Y/G

Failure description
Room temp. sensor abnormal
Indoor coil temp. sensor abnormal
Outdoor coil temp. sensor abnormal
Over-current malfunction
Communication malfunction between indoor and wired controller
Communication malfunction between indoor and outdoor abnormal
Coil gas pipe temp. Sensor abnormal
Code on wired Flash times of indoor
controller receiver board
01 Power LED flashes 1 time
02 Power LED flashes 2 times
4A Power LED flashes 3 times
49 Power LED flashes 4 times
48 Power LED flashes 5 times
53 Power LED flashes 6 times
07 Power LED flashes 8 times
06 Power LED flashes 9 times
03 Power LED flashes 12 times
Outdoor temp. sensor abnormal
High / Low pressure abnormal
Temperature protection malfunction 0D Power LED flashes 13 times
Drainage system malfunction 08 Power LED flashes 10 times
0B Power LED flashes 11 times
Alarm of exterior annunciator
13
Electric wiring
(1) Before starting test run (for all Heat pump models)
6. Test run
Confirm whether the power source breaker (main switch) of the unit has been
turned on for over 12 hrs to energize the crankcase heater in advance of operation.
(For AU142AFBEA , AU182AFBEA, AU242AHBEA,AU282AHBEA,
AU28NAHBEA, AU36NAIBEA, AU42NAIBEA, AU52NAIBEA)
(2) Test run
Run the unit continuously for about 30 minutes, and check the following.
Suction pressure at check joint of service valve for gas pipe.
Discharge pressure at check joint on the compressor discharge pipe.
Temperature difference between return air and supply air for indoor unit.
CAUTION
THIS UNIT WILL BE STARTED INSTANTLYWITHOUT "ON" OPERATION
WHEN ELECTRIC POWER IS SUPPLIED.BE SURE TO EXECUTE "OFF"
OPERATION BEFORE ELECTRIC POWER IS DISCONNECTED FOR
SERVICING.
This unit has a function of automatic restart system after recovering power stoppage.
Installation Procedure
7. Trouble display