Laying Suction And Pressure Lines - Danfoss BOCK UL-HGX66e Operating Manual

4| Compressor assembly
Important:
- Start unloader may only be employed during the starting phase.
- Check the solenoid valve and the non-return valve regularly for tightness.
- In addition, we recommend using a heat protection thermostat on the discharge side of the com-
pressor. This protects the compressor against thermal overloading. Connect the heat protection
thermostat in series on the safety chain of the control circuit, to switch off the compressor if
necessary.
- Follow these instructions to avoid thermal overloading.
4.6

Laying suction and pressure lines

A rule of thumb: Always lay the first pipe section starting from the shut-off valve downwards
and parallel to the drive shaft.
As short as
possible
© Danfoss | Climate Solutions | 2024.04
Improperly installed pipes can cause cracks and tears, the result
being a loss of refrigerant.
Proper layout of the suction and discharge lines directly after
the compressor is integral to the system's smooth running and
vibration behavior.
Rigid
fixed point
Solenoid valve dead
Non-return valve open
AQ450438640296en-US0301 | 11
Fig. 6
US
Fig. 7