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Installation manual
11
RZQG71~140L + RZQSG100~Y1B(9)
Split system air conditioners
4P327537-1 – 2012.08
Cautions on handling the stem cap
The stem cap is sealed where
indicated by the arrow. Take care not
to damage it.
After handling the stop valve, make
sure to tighten the stem cap securely.
For the tightening torque, refer to the
table below.
Check for refrigerant leaks after tightening the stem cap.
Cautions on handling the service port
Always use a charge hose equipped with a valve depressor pin,
since the service port is a Schrader type valve.
After handling the service port, make sure to tighten the service
port cap securely. For the tightening torque, refer to the table
below.
Check for refrigerant leaks after tightening the service port cap.
9.4.
Tightening torques
10. Refrigerant piping
Field pipes can be installed in four directions (A, B, C, D).
Figure -
Field pipes in 4 directions
1
Drill
2
Centre area around knock-out hole
3
Knock-out hole
4
Slit
5
Connecting pipe
6
Bottom frame
7
Front plate
8
Pipe outlet plate
9
Screw front plate
10
Pipe outlet plate screw
A
Forward
B
Backward
C
Sideways
D
Downward
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 Ø6 mm drill (4x). (See
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 knock-out holes and wrap the wiring
with protective tape to prevent damage.
1
Knock-out hole
2
Burr
3
Packing materials
10.1. Preventing foreign objects from 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)
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 small animals entering the outdoor unit may cause a short
circuit in the electrical box.
Seal knock-out holes to avoid snow and humidity entering.
10.2. Precautions when connecting field piping and
regarding insulation
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.
If the temperature is higher than 30°C and the humidity is higher
than RH 80%, then the thickness of the sealing materials should
be at least 20 mm in order to avoid condensation on the surface
of the sealing.
Item
Tightening torque (N•m)
Stem cap, liquid side
13.5~16.5
Stem cap, gas side
22.5~27.5
Service port cap
11.5~13.9
1
2 3
4
4
5
6
7
8
B
C
9
10
A
D
1
2
3
1
Содержание SkyAir RZQG100L7V1B
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