Oil Return Measures; Connection Variants For The Indoor Unit - REMKO ML 263 DC Assembly And Operating Instructions Manual

5.6 Oil return measures

If the outdoor unit is installed at a higher level than
the indoor unit, suitable oil return measures must
be taken. Usually, an oil pump bend is installed for
every 2.5 metres of height difference.
1
2

5.7 Connection variants for the indoor unit

The following connection variants can be used for the refrigerant, condensate and control lines.
A
B
Fig. 31: Connection variants
A: Outlet on the wall, right
B: Outlet through the wall, right
C: Outlet through the wall, left
D: Outlet on the wall, left
A
3
B
D
C
Fig. 30: Oil return measures
A: Outdoor unit
B: Indoor unit
1: One oil pump bend in suction pipe to outdoor
unit every 2.5 metres of height difference
2: Radius: 50mm
3: Max. 10m
27