Wolf BWL-1S-07 - Page 26

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Routingtherefrigerantlines
Heightdifferentials
If the height differential between the indoor and the outdoor units is > 4 m, both refrigerant lines will require oil lift
bends to prevent oil shortages in the compressor.
Cooling mode
Heating mode
Suction line
(gaseous)
Injection line
(phase mixture)
Max. 4 m
Oil lift bend
(on site)
Liquid line (liquid)
Hot gas line
(gaseous)
Max. 4 m
Cooling mode
Heating mode
Suction line
(gaseous)
Injection line
(phase mixture)
Max. 4 m
Oil lift bend
(on site)
Liquid line (liquid)
Hot gas line
(gaseous)
Max. 4 m
Outdoormodulehigherthanindoormodule
Indoormodulehigherthanoutdoormodule