Insert the connecting cable into the indoor unit.
•Don't connect the cable to the indoor unit.
•Make a small loop with the cable for easy con- nection later.
Tape the drain hose and the connecting cable.
• Connecting cable
Tape
Connecting pipe
Drain hose
Connecting cable
Indoor unit installation
•Hook the indoor unit onto the upper portion of the installation plate.(Engage the three hooks of the rear top and rear lower of the indoor unit with the upper edge and lower edge of the installation plate.) Ensure that the hooks are properly seated on the installation plate by moving it left and right.
Connecting cable
Drain hose
Connecting the pipings to the indoor unit and the 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.
Indoor unit tubing Flare nut Pipings
• Tighten the flare nut with a wrench.
|
| Spanner (fixed) |
|
| Flare nut |
Torque wrench |
| Connection pipe |
|
| |
Indoor unit tubing |
|
|
Outside diameter | Torque | |
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 hose
Indoor unit drain hose
Adhesive Vinyl tape (narrow)
Wrap the insulation material around the connecting portion.
•Overlap the connection pipe heat insulation and the indoor unit pipe heat insulation material. Bind them together with vinyl tape so that there is no gap.
Plastic bands Insulation material
Service Manual 23