Actions with operating disturbances
For the Installation engineer
48
FIGHTER 1310
Close the shut-off valves in heating water system.
Now open the drain valve (76). A little water, possibly
warm, runs out. In order to empty the entire heating
water side the coupling that joins the heating water
side and the connection on the heat pump ”WW-out”
should be loosened a little to let in air so that the
remaining water can run out. When the heating water
is empty the requisite service can be carried out.
When performing a service on the brine 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 system
Draining, heating water system
■
Shut down FIGHTER 1310 by turning the switch
(8) to 0.
■
Open the front cover.
■
Loosen the venting 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 1310 and check whether the circu-
lation pump runs.
It is usually easier to start the circulation pump with
FIGHTER 1310 running, switch (8) set to 1. If helping
the circulation pump to start is performed with
FIGHTER 1310 running, be prepared for the screw-
driver to jerk when the pump starts.
Helping the circulation pump to start
Luftningsskruv
16
LEK
G
R
U
N
D
FO
S
T
ype
UPS
25 - 60
130
P/N:59526447
230V
-
HEJSAN
PC;0017NIB
D
K
50Hz
IP 44
TF 110
Class H
M
ax.
10bar
2.5uF
45
0.20
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 water 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
Rotor unit
Drive side
A
LEK
GRUNDFOS
T
ype
U
PS
2
5 - 60
130
P/N:59
526447
230V
-
HE
JS
A
N
PC
;0017N
IB
D
K
5
0H
z
IP 44
TF 1
10
Class H
Ma
x.
10bar
2.5
uF
45
0.20
6
5
0
.30
90
0.40
1m(A)
P,(W)
B
LEK
C
LEK
D
Venting screw