Refrigerant piping work
1. Installing outdoor unit
1) When installing the outdoor unit, refer to "Precautions for Selecting the Location" and the "Indoor/Outdoor Unit Installation Drawings".
2)If drain work is necessary, follow the procedures below.
2. Drain work
1) Use drain plug for drainage.
2) If the drain port is covered by a mounting base or floor surface, place additional foot bases of at least 30mm in height under the
outdoor unit's feet.
3) In cold areas, do not use a drain hose with the outdoor unit.(Otherwise, drain water may freeze, impairing heating performance.)
Indoor Unit
Outdoor Unit
Level
difference:
15m max.
Level
difference:
7.5m max.
If the outdoor unit is positioned higher than all indoor units.
Outdoor Unit
Indoor Unit
Level
difference:
15m max.
Level
difference:
7.5m max.
If the outdoor unit is positioned higher than one or more indoor units.
(If lower than one or more indoor units.)
Limitations on the installation
If all indoor units are positioned higher than the outdoor unit.
22
Hose
Drain elbow
