10
HKFC20-IM-DE-W-UK-04-2022-Rev.1 | Part no. 10084532
EN
ENGLISH
8.3 Disassembling the circulation pump
1. Disconnect the power supply and secure it against being
switched on again.
2. Remove the front panel of the pump group.
3. Close all stop valves.
4. Disassemble thermometer handles and intermediate
insulation.
5. Disconnect the wiring of the circulation pump.
6. Release the fastening nuts (X) and remove the circulation
pump.
Risk of heavy scalding from hot water!
• Allow the pump group to cool before
servicing.
• Do not reach into the hot medium when
emptying.
8.4 Installation of the circulation pump
1. Replace damaged or defective seals if necessary.
2. Insert the circulation pump and tighten the nuts (X) (for
tightening torques see “Technical data” on page 4).
3. Connect the wiring of the circulation pump.
4. Slowly open the ball valves by turning the thermometer
handle.
5. Slowly pressurize the pump assembly and vent the system
if necessary.
6. Check the pump group for leaks.
7. Restore the power supply to the pump group.
8. Disassemble the thermometer handles.
9. Install the intermediate insulation, the thermometer
handles, and the front panel.
X
X
