Haier 1UH071N1ERG, Руководство по установке

Страница: 12 / 24

Field pipes can be installed in four directions (A, B, C,
D, E).
A
C
B
D
E
A: Forward
B: Backward
C: Sideways
D: Downward
E: Power supply cable,outdoor and indoor connection cable
12
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.
Apply refrigerant oil to the joint and the flange.
To bend a pipe, give the roundness as possible not to
crush the pipe.
When connecting pipe, hold the pipe centre to centre and
then screw nut on by hand, refer to Fig.
Be careful not to let foreign matters, such as sands enter
the pipe.
7.4. Piping connection method
Pipe diameter Fastening torque (N.m)
Liquid pipe 6.35mm
Gas pipe 15.88mm
Liquid pipe 9.52mm
Gas pipe 19.05mm
14.2-17.2
61.8-75.4
32.7-39.9
97.2-118.6
Gas pipe 12.7mm
49.5-60.3
Spanner
Spanner
Nut
Joint
Cutting out the two slits makes it possible to install as
shown in the figure "Field pipes in 4 directions".
(Use a metal saw to cut out the slits.)
To install the connecting pipe to the unit in a downward
direction, make a knock-out hole by penetrating the
centre area around the knock-out hole using a 6mm
drill (4x).
After knocking out the knock-out hole, it is recommended
to apply repair paint to the edge and the surrounding
end surfaces to prevent rusting.
When passing electrical wiring through the knock-out
holes, remove any burrs from the know-out holes and
wrap the wiring with protective tape to prevent damage.
If there is any possibility that small animals enter the system
through the knock-out holes, plug the holes with packing
materials (field supplied).
Insects or samall animals entering the outdoor unit may cause
a short circuit in teh electrical box.
Seal knock-out holes to avoid snow and humidity entering.
Plug the pipe through-holes with putty or insulating
material (procured locally) to stop up all gaps, as shown
in the figure.
1 Putty or insulating material (produced locally)
7.5. Preventing foreign objects from entering
Be careful not to let the indoor and outdoor piping come
into contact with the compressor terminal cover.
If the liquid-side piping insulation might come into contact
with it, adjust the height as shown in the figure below.
Also, make sure the field piping does not touch the bolts
or outer panels of the compressor.
When the outdoor unit is installed above the indoor unit
the following can occur:
The condensed water on the stop valve can move to the
indoor unit. To avoid this, please cover the stop valve with
sealing material.
7.6. Preventing foreign objects from entering