22
7. When the barrel is nearly empty, stop the pump and fi ll the barrel with
more heat transfer fl uid.
8. When the system is full and air no longer comes from the return pipe,
run the system for at least a further 60 minutes. Use the internal HTF
pump to speed up the air venting. Enter manual operation on the heat
pump control panel under menu 5.3 and start the circulation pump
G3(P3). See Commissioning the heat pump\Manual test run of the heat
pump.
9. When venting is complete, set the valves on the fi lling link in pres-
surize mode and pressurize the system to 2 bar. Make sure that the
expansion vessel has an air pocket corresponding to approximately
1/3 of the total volume, by using the de-airing valve on the expansion
vessel.
10. Set the fi lling link in normal operation mode and stop the fi lling pump.
Disconnect the hoses and insulate the fi lling link using the supplied
insulation.
Commiss./Service
Manual operation of
all functions 5.3
Return Select
Filling link in pressurize mode
Filling link in normal operation mode
Connecting the heat pump to the heating system
Adaptor fi ttings for different fi lling links
Two male G20" to G25"
adaptor connections for
old fi lling links.
Hose connection points,
two female G20" threads.
Old type fi lling link
New type fi lling link
Hose connection points,
two female G25" threads.
Two male to male G25" adaptor
connections used to connect
fi lling bin hoses to new fi lling
link.
