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Haier CABINET Commercial R32 Manual

17
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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 insulation material.
Indoor unit
Slope Good
Up
Down Bad
Connect the connecting pipe and inlet / outlet liquid pipe according to the piping method.
Vacuumizing
Discharge the air out of the indoor unit and the refrigerant pipe by vacuumizing.
Fasten all the nuts of the indoor and outdoor pipes to make these parts out of leakage.
Under the condition of the complete close of the indoor and outdoor valve center (both liquid and gas side), dismount
the service valve cap. Vacuumizing through the charge mouth of the service valve.
After vacuumizing, fasten the service valve and dismount the cap of the big and small stop valve, then loosen the stop
valve center completely and fasten the big and small stop valve.
Pipe cutting and flaring
Be sure to carry out deburring after pipe cutting with a pipe cutter.
Insert flaring tool to make a flare.
AFlaring tool
17
Installation Procedure Piping Connection
Piping connection of indoor unit
1.Arrangement of piping and drainage pipe
Cut away, with a 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
connecting 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 hose through wall hole
to connect with outdoor unit.
Insulation material
Copper tube
Drain hose
Connecting electric
cable for indoor and
outdoor unit
Apply refrigerant oil at half union and flare nut.
To bend a pipe, give the roundness as large as possible not to crash 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 sundries, such as sands enter the pipe.
Forced fastening without centering may damage the threads and cause a gas leakage.
Pipe dia. Dimension A
Liquid pipe
Gas pipe
1.0 ~ 1.8(mm)
1.2 ~ 2.0(mm)
9.52mm (3/8")
15.88mm(5/8")
Fastening torque
32.7-39.9N.m
Correct
Lean Damaged flare Crack Partial Too outside
Incorrect
After opening inlet grill, you will see a control box as shown in the
Fig. Remove the cover before wiring work.
Connecting method
2.Arrangement of drain hose
Piping connection of outdoor unit.
(1)
(2)
(3)
control box
SLEEP
ON/OFF MODE FAN
SET
TEMP
HUMI
HEALTH
TIMER
TEMP+ TEMP- HEALTH
61.8-75.4N.m
… 17 …


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