Haier HPU-18C03/E1 User manual
23
Installation Manual of Room Air Conditioner
Tool necessary
1. Screw driver
2. Hacksaw
3. 70mm dia.hole core drill
4. Spanner(dia. 17,27mm)
5. Spanner(14,17,19, 27mm)
6. Pipe cutter
7. Flaring tool
8. Knife
9. Nipper
10. Gas leakage detector
or soap water
11. Measuring tape
12. Reamer
13. Refrigerant oil
Standard accessories
Following parts shall be field
supplied
Mark Part name
Adhensive tape
Pipe clip
Connecting hose
Insulation material
Putty
Drain hose
A
B
C
D
E
F
No. Shape and description QTY
Remote controller
Cement nail
Connecting pipe
Drain hose
Wire clip
Rubber pad
Non-adhensive tape
Fixing of the unit
1. Position of the wall hole
Wall hole should be decided according to installation
place and piping direction.(refer to installation drawings).
2. Making a wall hole
Drill a hole of 70X70mm dia. with a little slope towards
outside.
Indoor side Outdoor side
Thickness
of wall
Wall hole
70mm
(Cross section of wall hole)
Insulation pipe
Dry battery #7
Wall hole cover
Piping hole cover
signal hose
24
Installation Manual of Room Air Conditioner
3. Piping connection
Connecting method
To bent a pipe, give the roundness as large as possible not to crash the pipe.
When connecting pipe, hold the pipe center to center then screw nut on by hand, refer to Fig.
Be careful not to let foreign matters, such as sands enter the pipe.
Piping connection of the indoor unit
1. Arrangement of piping and drainage pipe
Cut away, with hammer or a saw, the lid for piping according to piping direction.
According to the piping method, connect the piping on indoor unit with union of connection pipe.
Arrange the piping as per the wall hole and bind drain hose connecting electric cable and piping
together with polyethylene tape.
Insert the bound piping connecting electric cable and drain hoes through wall hole to connect
with outdoor unit.
2. Arrangement drain hose
Drain hose shall be placed in under place.
There should be a slope when arrange drain hose. Avoid up and down waves in drain hose.
If humidity is high, drain pipe(especially in room and indoor unit) must be covered with
installation material.
After opening inlet grill, you will see a control
box as shown in the Fig.
Remove the cover before working.
Insulation material
Copper tube
Drain hose
Connecting electric cable
for indoor and outdoor unit
25
Installation Manual of Room Air Conditioner
1. Piping connection of the outdoor unit
Connecting the connecting pipe and inlet and
outlet liqued pipe according to the piping method.
Purging Method:
Push the air out of the indoor unit
and piping as followes:
(1) Remove the valve cap on 2-way
valve in outdoor unit.
(2) Loosen by 1/2 turn the flare nut of
gas pipe, which is conneted to
3-way valve.
(3) Loosen 2-way valve by 90o using
hexagon wrench, and after approx.
6 sec tighten it up. Gas comes out
through flare nut on wide pipe. If no
gas is discharged, tighten flare nut
with specified torque.
(4) Open 2-way and 3-way valves
using specified torque.
(5) Tighten the caps on the valves
with specified torque.
2-way valve 3-way valve
Liquid side Gas side
Pipe Diameter ( )
Fastening Torque
Liquid Side 6.35mm(1/4")
Gas Side 15.88mm(1/2") 50N.m
18N.m
Forced fastening without careful
centering may damage the
threads and cause a leakage of
gas.
Liquid Side 9.52mm(3/8")
Gas Side 15.88mm(5/ 8") 60N.m
42N.m
15.88mm (5/8")
9.52mm (3/8")
Liquid side Gas side
2-way valve
3-way valve
Note: When extending piping, air inside piping shall be removed by using external refrigerant gas,
charge according to the following list.
Brand new outdoor unit is charged 50g or 80g(22k,24k) more refrigerant than regulated weight. Only for
first installation, this extra 50g or 80g(22k,24k) can be used to purge airin pipes.
During this procedure, 50g or 80g(22k,24k) refrigerant will be discharged in piping.(This must be
strictly controlled within 90o and 10 sec.)
CAUTION
In case more than 5m
Oil trap shoud be installed every 5~7m
Max. Length: for 7K 9K : A=7m
for 12K: A=10m
for 18K 22K 24K: A=20m
Max.Elevation:
for 7K 9K 12K: 5m
for 18K 22K 24K: 10m
no more gas if the length of connecting pipe is less than
7m(
• •7K 9K
)
• •
or 10m(12K) or 20m(18K 22K 24K).
The height difference between any two indoor or outdoor units can not be
more than 5m(7K 9K 12K ) or 10m(18K 22K 24K).
A
Outdoor unit
Indoor unit
Outdoor unit
Indoor unit
Oil trap
26
Installation Manual of Room Air Conditioner
Note: When additional refrigerant is necessary, first purge air out of connecting pipe by external gas,
then drive out the excessive rerigerant by purging method.
Brand new unit is charged 80g more refrigerant than spec. This is only for first instaltion to purge air
in the indoor unit and connecting pipe.
When piping is longer than 5m, charge additional refrigerant specified in this list.
Pipe length 5m 10m 15m
Refrigerant charge(g) 100 200
Electric wiring
Note:
Electric wiring must be done by qualified person.
Use copper wire only.
The parameter of the connecting cable:
Wiring of indoor unit
Insert the cable from outside the wall hole where piping already exist.
Pull it out from front.
Losen terminal screw and insert cable end fully into terminal block, then
Pull the cable gently to make sure it is tight.
Replace cover after wiring.
Wiring of outdoor unit
Insert the cable from inside the wall hole where piping already exist.
Pull it out from front.
Loose terminal screw and insert cable end fully into terminal block, then tighten it
Pull the cable gently to make sure it is tight.
Replace cover after wiring.
When connecting indoor and outdoor wire, check the number on indoor and outdoor terminal
blocks. Terminals of same number and same color shall be connected by the same wire.
Incorrect wiring may damage air conditioner's control or cause operation failure.
Note:
tighten it
1(L)
Note: User should prepare the part in the dashed
frame by himself.
φ6.35:
Pipe length 5m 10m 15m
Refrigerant charge(g) 300 600
φ9.52:
N
L
1 2 3 N L
Outdoor unit
Indoor unit
HPU-18H03/E1 HPU-24H03/E1
Outdoor unit
Indoor unit
N
L
1 2 3 N L
HPU-18C03/E1
Indoor unit
Outdoor unit
HPU-24C03/E1
Indoor unit
Outdoor unit
HPU-18H03/E1:3*2.5+2*0.75 HPU-18C03/E1：3*2.5
HPU-24H03/E1：3*2.5+3*0.75 HPU-24C03/E1：4*0.75
27
Installation Manual of Room Air Conditioner
Others
1. Power supply
Air conditioner must use an exclusive line(over 30A) and there is not power plug with this type,
the type of power supply wireHPU-18/24C03/E1 is 2.5mm2、HPU-18/24H03/E1 is 4.0mm2.
When installation air conditoner in a wet place, try to use a circuit breaker against Current
leakage.
For installation in other palces, use circuit breaker as far as possible.
2. Piping cutting and flaring
Be sure to carry out deburring after cutting with a pipe cutter.
Insert flaring tool to make a flare.
Installation inspection and test run:
Please operate unit according to this Manual.
Items to be checked during test run. Please made a '' '' in '' ''
Are there any gas leakage?
How is insulation at piping connection carried out?
Are electric wires of indoor and outdoor unit firmly inserted into terminal block?
Is electric wiring of indoor and outdoor securely fixed?
Is drainage securely carried out?
Is earth line(grounding) securely connected?
Is power supply voltage abided by the code?
Is there any noise?
Is control display normal?
Is cooling operation normal?
Is room temp. regulator normal?
Liquid pipe
Pipe diameter Size A (mm)
0.8 ~1.5
1.2 ~2.0
6.35mm(3/8")
12.7mm(5/8")
Gas pipe
A
Correct Incorrect
Lean Damage of flare Crack Partial Too outside
Flare tooling die
Liquid pipe 1.0 ~1.2
1.4 ~2.2
9.52mm(3/8")
15.88mm(5/8")
Gas pipe
This manual suits for next models
3
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