Service22
For the Installer
FIGHTER 600P
■ Set the switch (8) to “0”.
■ Close the shut-off valves before and after the cir-
culation pump
■ Loosen the venting screw.
■ Remove the connection cover.
■ Loosen the power cable.
■ Remove the drive side from pump housing by loos-
ening the screws. Now dismantle the drive side
(fig. A).
■ Remove the rotor unit (including pump housing) by
carefully pulling the pump rotor. If it sits firmly, it
can be loosened by knocking the rear of the shaft
(fig. B).
■ Clean inside the stator can using a cleaning agent
(fig. C).
■ Also clean the rotor unit using the cleaning agent
and lubricate the O-ring with, for example, a soap
solution (fig. D).
■ Refit the rotor unit.
■ Re-assemble the drive side (the flat packing is best
placed on the pump housing).
■ Connect the power cable.
■ Open the shut-off valves.
■ Set the switch (8) to “1”.
Cleaning the circulation pump
D
There is a sacrificial anode mounted on an inspection
cover (58) at the top of the hot water heater. Anode
replacement takes place as follows:
■ Remove the heat pump’s circuit fuses in the distri-
bution cabinet.
■ Empty the water heater, see the section Commis-
sioning and setting - Emptying the water heater.
■ Dismantle the inspection cover (58).
■ Replace the sacrificial anode in the inspection
cover.
■ Re-assemble in the reverse order.
Sacrificial anode replacement can be eliminated if a
direct current anode is fitted.
Sacrificial anode replacement
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