8
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.)
Drain elbow
Hose
Drain elbow
Hose
Indoor Unit
Outdoor Unit
Level
difference:
15m max.
Level
difference:
7.5m max.
If the outdoor unit is positioned higher than the indoor units.
Outdoor Unit
Indoor Unit
Level
difference:
15m max.
Level
difference:
7.5m max.
If the outdoor unit is positioned higher than the indoor units.
(If lower than one or more indoor units.)
Limitations on the installation
19K
25K
34K
30K
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