Haier 2HUM18HA03/R2 User manual

INSTALLATION MANUAL
ROOM AIR CONDITIONER
WALL MOUNTED TYPE
NO.0010520385
Read this manual before installation
Explain sufficiently the operating means to the user according to this manual.
MANUAL DE INSTALACIÓN
NOTICE D'INSTALLATION
MANUALE DI INSTALLAZIONE
HSM09HEA03/R2(DB)
HSM12HEA03/R2(DB)
HSM07HEA03/R2(DB)
Indoor unit:
Outdoor unit: 2HUM18HA03/R2(DB)

Drawing for the installation of indoor and outdoor units
1.Driver
2.Hacksaw
3.Hole core drill
4.Spanner(17,19 and 26mm)
5.Torque wrench(17mm,22mm,26mm)
6.Pipe cutter
7.Flaring tool
8.Knife
9.Nipper 12.Reamer
10.Gas leakage detector or
soap-and-water solution
11.Measuring tape
Necessary Tools for Installation
The models adopt HFC free refrigerant R410A
A
B
C
D
E
F
G
Optional parts for piping
Mark Parts name
Non-adhesive tape
Adhesive tape
Saddle(L.S) with screws
Connecting electric cable
for indoor and outdoor
Drain hose
Heating insulating material
Piping hole cover
No. Accessory parts
Remote controller
R-03 dry battery
Mounting plate
Drain hose
Screw Plastic cap
Drain-elbow
Cushion
1
1
2
3
4
5
6
7
8
2
1
1
4
1
4
1
Number
of
articles
Accessory parts
4X25
Pipe supporting plate
Arrangement of piping directions
Rear left
Rear
right
Left
Below
Right
The marks from to in the figure are the parts numbers.
The distance between the indoor unit and the floor should be
more than 2m.
AG
Attention must be paid to
the rising up of drain hose
Indoor unit A
Indoor unit B
C
D
1
more than 5cm
more than 10cm
more than 5cm
more than 10cm
more than 10cm
more than 15cm
more than 60cm

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5
Indoor unit
When connecting the cable after installing the indoor unit
1. Insert from outside the room cable into left side of the wall hole, in which
the pipe has already existed.
2. Pull out the cable on the front side, and connect the cable making a loop.
When connecting the cable before installing the indoor unit
Insert the cable from the back side of the unit, then pull it out on the front side.
Loosen the screws and insert the cable ends fully into terminal block, then tighten the screws.
Pull the cable slightly to make sure the cables have been properly inserted and tightened.
After the cable connection, never fail to fasten the connected cable with the wiring cover.
Note: When connecting the cable, confirm the terminal number of indoor and outdoor units carefully. If wiring
is not correct, proper operation can not be carried out and will cause defect.
1. If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or a similar
qualified person. The type of connecting wire is
2. If the fuse on PC board is broken please change it with the type of T. 3.15A/250V.
3. The wiring method should be in line with the local wiring standard.
4. After installation, the power plug should be easily reached.
5. A breaker should be incorporated into fixed wiring. The breaker should be all-pole switch and the
distance between its two contacts should be not less than 3mm.
H05/07RN-F or 245IEC57(YZW).
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Outdoor unit
Forced fastening without careful centering
may damage the threads and cause a
leakage of gas.
Pipe Diameter ( )
Liquid side 6.35mm(1/4")
Gas side 9.52mm(3/8")
Fastening torque
18N.m
40N.m
Gas side 12.7mm(1/2") 55N.m
1.Installation of Outdoor Unit
3.Connection
4.Attaching Drain-Elbow
2.Connection of pipes
Install according to
To bend a pipe, give the roundness as large as possible not to crush the pipe ,and the bending radius
should be 30 to 40 mm or longer.
Connecting the pipe of gas side first makes working easier.
The connection pipe is specialized for R410A.
Be careful that matters, such as wastes of sands, etc. shall not enter the pipe.
The standard pipe length is 10m. If it is over 20m, the function of the unit will be affected. If the pipe has
to be lengthened, the refrigerant should be charged, according to 20 g/m. But the charge of refrigerant
must be conducted by professional air conditioner engineer. Before adding additional refrigerant,
perform air purging from the refrigerant pipes and indoor unit using a vacuum pump,then charge
additional refrigerant.
Use the same method on indoor unit. Loosen the screws on terminal block and insert the plugs fully into
terminal block, then tighten the screws.
If wiring is not correct, proper operation can not be carried out and controller may be damaged.
If the drain-elbow is used, please attach it as
figure. (Note: Only for heat pump unit.)
Drawing for the installation of indoor and outdoor units
Insert the cable according to terminal number in the same manner as the indoor unit.
Fix the cable with a clamp.
Half union Flare nut
Spanner Torque wrench
6
CAUTION
In case the elevation A is more than 5m,
oil trap shoud be installed every 5~7m
Max. Length: B1max=20m B2max=20m
Max.Elevation: A1max=15m A2max=15m
In case the pipe length B is more than 20m,
the refrigerant should be charged, according to 20 g/m.
In case A is more than 5m
A3max=15m B1max+B2max =35m
A
B
Outdoor unit
Indoor unit
A1
B1
Indoor unit
A2
B2
Outdoor unit
Indoor unit
B1
Indoor unit
B2
Outdoor unit
Indoor unit
Oil trap
A3
Outdoor unit
Indoor unit
A1
B1
Indoor unit
A2
B2
For the 1by 2 models which outdoor unit capacity is 18000 BTU , the standard pipe length
5 meters, double units is 10 meters. If total pipe length is more than 20 metres, charge more refrigerant is needed.
of single indoor unit is

Outdoor unit
5.Purging Method:To use vacuum pump
Detach the service port's cap of 3-way valve, the
valve rod's cap for 2-way valve and 3-way's, connect
the service port into the projection of charge hose
(Iow) for gaugemanifold.Then connect the projection
of charge hose (center) for gaugemanifold into
vacuum pump.
3-way valve
Gas Side
2-way valve
2-way valve
Service port cap
Gaugemanifold(for R410A)
Vacuum pump(for R410A)
Open
Close
Liquid Side
Open the handle at Iow in gaugemanifold, operate
vacuum pump. If the scale-moves of gause (Iow)
reach vacuum condition in a moment, check again.
Vacuumize for over 15min.And check the level gauge
which should read -0.1 MPa (-76 cm Hg) at Iow
pressure side.After the completion of vacuumizing,
close the handle 'Lo' in gaugemanifold and stop the
operation of the vacuum pump.
Check the condition of the scale and hold it for 1-2min.
If the scale-moves back in spite of tightening, make
flaring work again, the return to the beginning of .
Open the valve rod for the 2-way valve to an angle of
anticlockwise 90 degrees.
After 6 seconds, close the 2-way valve and make
the inspection of gas leakage.
No gas leakage?
In case of gas leakage, tighten
parts of pipe connection. If
leakage stops, then proceed
steps.
Detach the charge hose from the service port, open
2-way valve and 3-way.Turn the valve rod anticlockwise
until hitting lightly.
To prevent the gas leakage, turn the service port's
cap, the valve rod's cap for 2-way valve and 3-way's
a little more than the point where the torque increases
suddenly.
After attaching the each caps, check the gas leakage
around the caps.
CAUTION:
1.If the refrigerant of the air conditioner leaks, it is necessary to
discharge all the refrigerant.Vacuumize first, then charge the liquid
refrigerant into air conditioner according to the amount marked on
the name plate.
2.Please do not let other cooling medium, except specified one (R410A),
or air enter into the cooling circulation system. Otherwise, there will be
abnormal high pressure in the system to make it crack and lead to
personal injuries.
If it does not stop gas leakage, discharge
whole refrigerants from the service port.
After flaring work again and vacuumize,
fill up prescribed refrigerant from the gas
cylinder.
Anti countercurrent joint
3-way valve
2-way valve
7
6
6
6
1
2
3
1
3
4
5
6
7
8
3-way valve
2-way valve
To indoor
unit A
To indoor
unit B
Tube(for R410A)
3-way valve
Valve rod cap
Valve rod cap
7
7
Open
90
O

1.Cut pipe
3.Insert the flare nut
4.Flare pipe
It becomes high midway. The end is immersed
in water.
It waves. The gap with the ground
is too small
Less than 5cm
There is the bad smell
from a ditch
2.Remove burs
0~0.5mm 1.0~1.5mm 1.5~2.0mm
Flare tool for R410A
Clutch-type
Conventional flare tool
clutch-type(Rigid-type)
Wing-nut type (Imperial-type)
1.Power Source Installation
2.Cutting and Flaring Work of Piping
3.On Drainage
Check for Installation and Test Run
Check Items for Test Run
The power source must be exclusively used for air conditioner. (Over I0A)
In the case of installing an air conditioner in a moist place, please install an
earth leakage breaker.
For installation in other places, use a circuit breaker as far as possible.
Pipe cutting is carried out with a pipe cutter and burs must be removed.
After inserting the flare nut, flaring work is carried out.
Please install the drain hose so as to be downward slope without fail.
Please don't do the drainage as shown below.
Please pour water in the drain pan of the indoor unit, and confirm that drainage is
carried out surely to outdoor.
In case that the attached drain hose is in a room, please apply heat insulation
to it without fail.
Please kindly explain to our customers how to operate through the instruction manual.
Gas leak from pipe connecting?
Heat insulation of pipe connecting?
Are the connecting wirings of
indoor and outdoor firmly inserted
to the terminal block?
Is the connecting wiring of indoor
and outdoor firmly fixed?
Is drainage securely carried out?
Is the earth line securely
connected?
Is the indoor unit securely fixed?
Is power source voltage abided
by the code?
Is there any noise?
Put check mark in boxes
Is the lamp normally lighting?
Are cooling and heating (when
in heat pump) performed normally?
Is the operation of room temperature
regulator normal?
Flare tooling die
Correct Incorrect
Lean Damage of flare Crack Partial Too outside
A
8