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mini HE --- Installation & Servicing48
69 DIVERTER VALVE ACTUATOR
REPLACEMENT
1 Disconnect the electrical supply .
2 Remove front casing panel (refer to frame 42)..
3 Disconnect the c onnectors A.
4 Remove the fixing spring B and remove the actuator C.
Re---assemble in reverse order.
When reassembling the actuator, refer to the wir ing diagram
in frame 31 for the correct wiring connection.
B AC
70 DIVERTER VALVE INTERNAL PARTS
REPLACEMENT
1 Disconnect the electrical supply .
2 Remove front and left hand casing panels (refer to frame
42).
3 Close the isolating cocks of the CH circuit and DHW
supply at the bottom of the boiler.
4 R elease 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.
5 R elease the pressure of the DHW circuit by opening a hot
tap.
6 Removethedivertervalveactuator(seeframe69).
7 R emove the fork D and remove the primary circuit flow
switch E.
8 Disconnect both CH and DHW temperature probes F.
9 Unscrew the connector G , disconnect the CH flow and
DHW outlet isolator valves.
DE
G
F F
10 Remove the DHW heat exchanger (see frame 71).
11 Remove the fork H and move away the pipe I.
12 Unscrew the screw J and remove the diverter (flow)
group.
H
I
J
(rear view)
13 Refer to the following exploded view to remove the
internal parts of the three way diverter valve.
14 Re---assemble in reverse order.
SERVICING