SERVICING
mini HE --- Installation & Servicing46
67 CH DRAIN COCK REPLACEMENT
1 Disconnect the electrical supply
2 Remove front and right hand casing panels
(refer to frame 34).
3 Close off the isolating cocks of the CH circuit at the
bottom of the boiler.
4 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.
5 Remove the CH drain cock A from the return body.
6 Re ---assemble in reverse order.
A
68 CONDENSATE TRAP REPLACEMENT
1 Disconnect the electrical supply
2 Remove front and right hand casing panels
(refer to frame 34).
3 Disconnect the trap from the draining pipe.
4 Using pliers, remove the spring A moving it up-
wards.
5 Remove the nut B and lower the trap.
6 Disconnect the wirings from the trap.
7 Reassemble carrying out the removal operations
in reverse order.
AB
SERVICING
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