47
Henrad SEC FF -
Installation
71 DIVERTER VALVE ACTUATOR REMOVAL
SERVICING
1.
Refer to Frame 60.
2.
Remove the boiler casing. Refer
to Frame 53.
3.
Swing the control panel down.
4.
Unplug the electrical lead from
the diverter valve.
5.
Press the release catch in the
direction shown, and rotate the
actuator anticlockwise to
disengage it from the valve
body.
6.
Fit the new actuator and re-
assemble in reverse order.
7.
Check the operation of the new
actuator.
72 DRAINING THE BOILER
IMPORTANT
In order to replace the components in Frames 73 to 85 it is
necessary to drain the boiler.
1.
Refer to Frame 60.
2.
Close the CH isolating valves.
3.
Open the boiler drain tap and drain the
water into a suitable receptacle.
Note
.
Set the diverter valve manual
lever to the MID position to ensure
maximum drainage of the pipework.
Open the lowest D.H.W.draw-off tap.
4.
To refill the boiler refer to Frames 4 & 5.
SER
VICING
