Nibe FIGHTER 1330 - Draining, Heating Medium Side; Draining, Brine Side; Helping the Circulation Pump to Start; Cleaning the Circulation Pump

Actions with operating disturbances82
FIGHTER 1330
Close the shut-off valves in heating medium system.
Now open the drain valve (76). A little water, possibly
warm, runs out. In order to empty the entire heating
medium side the coupling that joins the heating medi-
um side and the connection on the heat pump, heat-
ing medium flow should be loosened a little to let in
air so that the remaining water can run out. When the
heating medium is empty the requisite service can be
carried out.
When performing a service on the collector system
the closest shut off valves are closed on both sides.
Draining of the fluid can then be done using the drain
valve (78).
Draining, brine sideDraining, heating medium side
■ Shut down FIGHTER 1330 by turning the switch
(8) to 0.
■ Open the front cover.
■ Loosen the air screw with a screwdriver. Hold a
cloth around the screwdriver blade as a certain
amount of water may run out.
■ Insert a screwdriver and turn the pump rotor.
■ Screw in the venting screw.
■ Start FIGHTER 1330 and check whether the circu-
lation pump runs.
It is usually easier to start the circulation pump with
FIGHTER 1330 running, switch (8) set to 1. If helping
the circulation pump to start is performed with FIGHT-
ER 1330 running, be prepared for the screwdriver to
jerk when the pump starts.
Helping the circulation pump to start
Luftningsskruv
16
LEK
G
R
U
N
D
FO
S
Type UPS
25 - 60
130
P/N:59526447
230V-
HEJSAN
PC;0017NIB
D
K
50Hz
IP 44
TF 110
Class H
Max. 10bar
2.5uF
450.20
65
0.30
90
0.40
1m(A) P,(W)
■ Set switch (8) to 0.
■ Close the shut-off valves outside the heat pump.
■ Drain the part of the circuit where the pump to be
cleaned is located, the heating medium pump or
the brine pump.
■ Loosen the venting screw.
■ Remove the drive side from pump housing by loos-
ening the two 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.
■ Refit the drive side (the flat packing is best placed
on the pump housing).
■ Open the shut-off valves.
■ Set switch (8) to 1.
Cleaning the circulation pump
Rotorpaket
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(
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B
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LEK
D
16/19
Venting screw
Drive side
Rotor unit
Stator can