Pipe Bending
1.Perform bending of the pipe using the bender which has a specified bending radius.
2.Be sure to take full care to perform bending of the pipe successfully at one time. Bending and unbending the pipe more than twice makes the bending work increasingly difficult.
3.You may use the spring inserted into the gas pipe instead of the bender to bend the pipe.
4.When you bend the pipe using the spring, hold the pipe with both hands to prevent any distortion, and secure a minimum bending radius of more than 100mm.
Spring
Tightening of Connection Parts
Align the pipes to be connected and tighten the flare nuts first manually and then with a torque wrench, applying the following torque.
Outer Diameter | Torque (kgf•cm) |
ø 6.35mm | 140~170 |
ø 15.88mm | 440~480 |
You can avoid of gas leakage by applying refrigerant oil on the flare connection part.
Drilling a Hole in the Wall
Pipe |
Flare connection part
Nut
Drill a hole of 60mm in diameter to the outside.
The drilling should be done at a distance of less than 150mm from the floor facing the indoor unit.
※If a hole on the wall is above 150mm from the floor, use a hole for drain hose (ø35mm) for connecting drain hose.
Ø 60mm Less than 
150mm
Hole for drain hose
700mm