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(4) Stop Valve
<Stop Valve>
Stop Valve Core for Opening and closing
Gas Valve
Liquid Valve
5.5 Air-Tightness Test
pipes with rubber sheath (Field-
Rear Piping Work
Liquid Piping
Bottom Side Piping Work
Liquid Piping
Power Wire
Gas Piping
Knock Out Hole
Bottom Base
Bottom Side Piping Hole
Rear Cover
To avoid damage protect cables and
Supplied).
Rubber Sheath(attatch part)
Cut a "+" shape gap at rubber sheath
center,wire lead rubber sheath.
Gas Pipe
Liquid Pipe
Power and Communication Wire
Pipe Cover
(1) The stop valve has been closed before
shipment, however, make sure that the stop
valves are closed completely.
(2) Connect the indoor unit and the outdoor
unit with field-supplied refrigerant piping.
Suspend the refrigerant piping at certain
points and prevent the refrigerant piping
from touching the weak part of the building
such as wall, ceiling, etc.
(If touched, abnormal sound may occur due
to the vibration of the piping. Pay special
attention in case of short piping length.)
(3)
Tighten the flare nut by using two
spanners.
Completion
of Ref.
Piping
Repairing
of Leakage
Part
Check of
Pressure
Decrease
Applying
Nitrogen
Gas
Pass
Procedure
Fig.5.3 Stop Valve Position
Operation of the stop valve should be
performed according to the figure below.
Rear Piping Guide Hole
13
Spindle Valve Torque ft·lbs (N m)
Gas Liquid
.
()
()
(5)
Liquid Valve:12ft·lbs (16N·m) Cap
Gas Valve:36ft·lbs (49N·m)
Wrench Size: 5/32 (4mm)
~1 (~1)
~ (~)
Heat Preservation Pipe
To prevent gaps use a rubber bush and
insulation (Factory-Supplied) adequately
when installing the piping cover. Cut the
lower side guide line of the piping cover
when attaching work is difficult.
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