Water Pipes - GEA RedGenium Operating Instruction

Start-up
Basic and further steps
•

7.4.1.2 Water pipes

The heat pump is mounted on vibration isolators which means that the connec-
tions of the water piping must be flexible.
Charging and draining must be possible.
The pipes must be flushed before connecting. This is carried out to remove soil-
ing, foreign particles and welding residue from the system.
•
72
– Heating agents
For heat pumps with TÜV approval: shut off safety valve on the blow-off line
Caution!
The heat pump requires a constant flow of secondary refrigerant and heat-
ing agent for smooth functioning.
► Volume flow changes must be mentioned in the contract specification.
Notice
All the connections must be made in accordance with the P+I diagram
applying to the respective project.
► Attach the pipes to the heat pump in such a way that it does not impose
any additional static or dynamic loads.
► All the pipes and systems to be connected must be checked for leaks
when the work is complete.
Notice
Check the water quality.
► The manufacturer recommends enlisting the services of a reputable wa-
ter conditioning company.
Secondary refrigerant system
After the heat pump has been aligned, its secondary refrigerant side can be
connected up. The piping system for the secondary refrigerant connections
must be installed on site by the plant engineer. Please refer to the drawing in
the supply documentation for the dimensions and position of the water con-
nections to the evaporator.
The evaporator must be connected to a closed secondary refrigerant circuit
on the pressure side of the pump.
Arrange a dirt collector immediately upstream of the evaporator (recommen-
ded mesh size 0.9 mm).
The volume flow of secondary refrigerant should be kept at a constant level.
Temperature sensor item 2040 for measurement of the outlet temperature
and item 2045 for measurement of the inlet temperature of the secondary
refrigerant are delivered with a separate welded sleeve and are, like the flow
switch item 2050, to be installed into the pipeline system by the installer.
L_151511_2
19.12.2019