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● Remove the screws according to the figure above.
NOTE:
Remove the screws and hold the service cover with your hands. If
not,the service cover may fall down.
● Slowly push the service cover downward.
(2) Securely use two wrenches at the following position when removing or installing the pipe. (If not,
refrigerant leakage may occur.)
RAS-3.0~6.5HNBRKQ1
RAS-7.0~8.0HNBRMQ1
RAS-10~12HNBRMQ1
(3) If the direction of the refrigerant piping has been chosen, please remove the piping cover from the unit,
punch out the holes following the guide line with a screwdriver and a hammer. Then, deburr the holes and
attach insulation (field-supplied) for protection of cables and pipes.
(a) Front and Right Side Piping Work (b) Bottom Side Piping Work
NOTICE
● Protect cables and refrigerant pipes from the edges of the holes with insulations etc. (Field supplied).
● Prevent the cables from contacting the refrigerant piping and the hot components of the unit directly.
● For the right side and rear side piping work, secure enough space for the piping.
(4) Be sure to attach the piping cover to prevent rain water from going into the unit. Completely seal the
penetration parts of the pipes with field-supplied insulation in order to prevent rain water from going into
the unit.
(5) Use a pipe bender or an elbow (field-supplied) for bending work while connecting pipes.
Attention for Removing Service Cover
– Procedures of Removing Cover –
Controlling torque of hexagonal wrench
Model
Gas side stop valve
11~14 N·m
12~15 N·m
12~15 N·m
26
Liquid side stop valve
7~9 N·m
7~9 N·m
8~12 N·m
(c) Rear Side Piping Work
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