User manual

SERVICING
mini HE --- Installation & Servicing42
61 PUMP REPLACEMENT COMPLETE
1 Disconnect the electrical supply.
2 Remove the front and right hand side casing panels (refer
to frame 42).
3 Release system pressure by opening the main circuit
drainage cock.
Do not release CH pressure using the pressure relief
valve. It may cause debris within the system to foul
the valve.
4 Disconnect the connector A.
5 Loosen the connector B.
6 RemovetheforkCandthepipeD.
C DAB
7 Remove the fork E and the connection of the capillary
pipe of the pressure gauge.
8 Remove the locking plate F.
9 Completely loosen the connect ion G.
10 Unscrew the two screws H that hold the pump on the
frame
11 Remove the pump towards the front of the boiler
E
I
G
F
H
Re ---assemble in reverse order.
When reassembling the pump, check the correct location of
the O---ring gasket in the inlet port of the pump that seals the
connection between the pump and the brass group .
If the motor only needs replacing, disconnect the connector
A, unscrew the 4 screws I and remove the pump motor
forwards.
SERVICING