Connecting the pipings to the indoor unit and drain hose to drain pipe.
•Put a couple drops of refrigerant oil on the face of the flare before assembling taking care not to add any contaminants.
•Align the center of the pipings and sufficiently tighten the flare nut by hand.
Wrap the insulation material around the connecting portion.
•Overlap the connection pipe insulation material and the indoor unit pipe insulation material. Bind them together with vinyl tape so that there is no
gap. | Plastic bands Insulation material |
|
Indoor unit tubing Flare nut Pipings
• Tighten the flare nut with a wrench.
Indoor unit tubing
Connection pipe |
| Torque wrench | |
|
| ||
Flare nut |
|
| |
Spanner (fixed) |
|
| |
Outside diameter | Torque | ||
mm | inch | ||
| |||
Ø6.35 | 1/4 | 1.8 | |
Ø9.52 | 3/8 | 4.2 | |
Ø12.7 | 1/2 | 5.5 | |
Ø15.88 | 5/8 | 6.6 |
•Mount the clamp on the boss with a type "B"
Type "B" screw | Drain hose |
Clamp |
|
Boss |
|
•When extending the drain hose at the indoor unit, install the drain pipe.
Drain pipe
Indoor unit drain hose
Adhesive Vinyl tape(narrow)
•Wrap the area which accommodates the rear piping housing section with vinyl tape.
Connection | Indoor | |
unit pipe | ||
pipe | ||
| ||
Vinyl tape | Wrap with vinyl tape | |
(wide) |
|
Connecting cable
Pipe
Vinyl tape(narrow)
•Bundle the piping and drain hose together by wrapping them with vinyl tape over the range within which they fit into the rear piping housing
section.
Wrap with vinyl tape
Pipe
Vinyl tape(wide)
Drain hose
For right rear piping
Route the indoor tubing and the drain hose to the required piping hole position.
Drain hose
22Room Air Conditioner