Daikin RR71B8V3B, Installation Manual, Page: 9 / 18

RR+RQ71+10 RR+RQ7 RR+RQ71~12
RR+RQ71B2W1B
Split System air conditioners
4PW23689-1C Installation manual
6
R
EFRIGERANT PIPING
■
Field pipes can be installed in four directions.
Figure - Field pipes in four directions
■
Cutting out the two slits makes it possible to install as shown in
the
figure "Field pipes in four directions" .
(Use a metal saw to cut out the slits.)
■
To install the connecting pipe to the unit in a downward
direction, make a knockout hole by penetrating the center area
around the knockout hole using a
Ø
6 mm drill. (See figure "Field
pipes in four directions" .)
■
After knocking out the knock-out, it is recommended to apply
repair paint to the edge and the surrounding end surfaces to
prevent rusting.
Preventing foreign objects from entering
Plug the pipe through-holes with putty or insulating material
(procured locally) to close up all gaps, as shown in the figure.
Insects or small animals entering the outdoor unit may cause a short
circuit in the electrical box.
Cautions for handling stop valve
■
The stop valves for indoor-outdoor connecting piping are closed
at shipment from the factory.
The names of parts of the stop valve are shown in the figure.
■
Since the side boards may be deformed if only a torque wrench
is used when loosening or tightening flare nuts, always lock the
shut-off valve with a wrench and then use a torque wrench.
Do not place wrenches on the valve cover.
Do not apply force on the valve cover, this may result in a
refrigerant leak.
■
For cooling operation under low ambient temperature or any
other operation under low pressure, apply silicon sealing pad,
etc. to prevent the freezing of flare nut gas pipe portion of the
stop valve. Refer to the figure.
How to use the shut-off valve
Use hexagonal wrenches 4 mm and 6 mm.
■
Opening the valve
1. Place the hex wrench on the valve bar and turn counter-
clockwise.
2. Stop when the valve bar no longer turns. It is now open.
■
Closing the valve
1. Place the hex wrench on the valve bar and turn clockwise.
2. Stop when the valve bar no longer turns. It is now closed.
1 Drill
2 Center area around knockout hole
3 Knockout 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
1 Putty or insulating material
(produced locally)
4 4
3 2 1
7 8
9
10
A
D
C
B
5 6
1
NOTE
Make sure to keep the valve open during operation.
1 Service port
2 Shut-off valve
3 Field piping connection
4 Valve cover
1 Spanner
2 Torque wrench
Silicon sealing pad
(Make sure there is no gap)
Closing direction
A Liquid side
B Gas side
3
4
1
2
2
A
B