CAUTION
Be sure to match refrigerant tubing and electric wiring between indoor and outdoor units.
Torque wrench
Indoor unit | Spanner |
| |
| Outdoor unit |
3-6. Insulation of Refrigerant Tubing
IMPORTANT
To prevent heat loss and wet floors due to dripping of con-
densation, both tubes must be well insulated with a proper insulation material.
The thickness of the insulation should be a minimum 5/16" (8 mm). (Fig. 16)
For
After connecting the refrigerant tubing to the outdoor unit and performing a leak test on the connecting part, insulate it with the tubing insulation. (Fig 17a)
For
Wind the insulation tape around the flare nuts at the tube connections. Secondly cover up the tubing connections with the flare insulation (1/8" (T3, supplied)). Then wind the other flare insulation (3/16" (T5, supplied)). Finally, fasten the insulation at both ends with the supplied vinyl ties. (Fig. 17b)
Insulation material
The material used for insulation must have good insulation characteristics, be easy to use, be age resistant, and must not easily absorb moisture.
| Fig. 15 |
| Insulation |
| Thickness: |
Min. | min. 5/16" |
5/16" | (8 mm) |
(8 mm) |
|
Fig. 16
Insulation
Fig. 17a
Insulation tape (supplied) | Flare insulation (3/16"(T5, supplied) ) |
| Flare insulation (1/8"(T3, supplied) ) |
| Tube insulation |
| (not supplied) |
Flare nut |
|
Vinyl tie (supplied) |
|
Fig. 17b
Drain hose insulation and vinyl tie (supplied) 
Drain hose and hose band (supplied)
Drain pipe and insulation | Refrigerant tubing |
(not supplied) | and insulation |
| (not supplied) |
Insulation tape (supplied)
Vinyl tie (supplied)
Flare
insulation (supplied)
The procedure used for installing the insulation for both wide and narrow tubes are the same.
Fig. 17c
Never grasp the drain or refrigerant connecting out- lets when moving the unit.
18
