11.2 SUSPENSION OF 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).
1~15m
Indoor unit
Fire-proof section
treatment
Do not fix the refrigerant piping directly with the metal fittings
(The refrigerant piping may expand and contract).
Some examples for suspension method are shown below.
For Suspending
Heavies
For piping
along the wall
For instant
installation work
11.3 PIPING CONNECTION FOR OUTDOOR UNIT
1
To open/close the service cover:
• Remove the screws following the instructions to the above
figure.
• Slowly press down the cover.
?
N O T E
Hold the cover with a hand to remove screws as the cover may fall down.
Service cover
Hook (three places): two fans
2
Confirm that the valve is closed.
3
Prepare a field-supplied bend pipe for liquid line. Connect
it to the liquid valve by flare nut through the square hole of
bottom base.
4
For Gas Piping Connection.
Prepare a field-supplied bend pipe for gas line. Braze it and
the factory-supplied pipe flange at the outside of the unit.
5
The pipes can be connected from 4 directions. Make holes
in the piping cover or cabinet for taking out pipes. Take the
piping cover away from the unit, and make holes by cutting
along the guideline at the rear of the cover or punching
with a driver. Remove the burr with a cutter, and place a
insulation (field supplied) to protect cables and pipes.
Nº
Description
Rear side piping work
Pipe Cover
Right side piping work
Bottom side piping work (Knock out hole)
Front side piping work
Piping work
Stop Valve
Removing Direction for Service Cover
For the front and side piping
Front piping hole
Side piping hole
To use racking or conduit tubes, check the size and remove
part following the slit.
?
N O T E
Place insulation (field supplied) to protect cables and pipes from being
damaged by plate edges.
REFRIGERANT PIPING & REFRIGERANT CHARGE
PMML0354A rev.1 - 03/2015
10
