IDEAL Henrad SEC 80FF, Руководство по установке и обслуживанию, Страница: 49 / 64

49
Henrad SEC FF -
Installation
SERVICING
76 DIVERTER VALVE (COMPLETE) REPLACEMENT
1. Refer to Frame 60.
2. Remove the boiler casing. Refer to
Frame 53.
3. Drain the boiler. Refer to Frame 72.
4. Swing the control panel down.
5. Remove the diverter valve actuator.
Refer to Frame 71.
6. Remove the mains plug mounting
plate.
7. Undo the 3 union connections on
the valve and withdraw it from the
boiler.
8. Ensuring that the letter B is
uppermost, fit the new valve
complete with the sealing washers
provided, and re-assemble in
reverse order.
9. Check the operation of the new
valve.
75 CH THERMISTOR SENSOR REPLACEMENT
Note. There are 2 control thermistors - one on the boiler flow boss and one on the return boss.
SER
VICING
1. Refer to Frame 60.
2. Remove the boiler casing. Refer to
Frame 53.
3. Drain the boiler. Refer to Frame 72.
4. Disconnect the flexible hose from the
expansion vessel. Release the
expansion vessel retaining bracket,
allowing the vessel to be removed to
gain access to the thermistor
sensors.
5. Pull the electrical lead off the sensor.
6. Unscrew the sensor from the boss.
7. Fit the new sensor, using a suitable
jointing compound, and re-assemble
in reverse order.