39
Installation and Servicing
Section 3 - Servicing
SER
VICING
3.2
REMOVAL / REPLACEMENT OF COMPONENTS
WARNING:
Do not operate the boiler without a
front panel fitted
When replacing any component.
1. Isolate the electricity supply.
2. Turn off the gas supply.
3. Remove the boiler front panel.
Refer to Section
3.4
4. Swing the control box down into its servicing position.
After removing / replacing any component.
5. Ensure all gas valve connections are gas tight with a gas
soundness check up to the gas control valve.
6. Ensure all water connections are tight.
7. Test the appliance for correct and safe operation.
Refer to Section
3.1
(General)
Notes.
1. In order to assist fault finding, the control panel has an
LCD diagnostic display. The key to boiler fault conditions
is shown in Section 4.
2. In order to replace components in Sections 3.17 and
3.19, it is necessary to drain the boiler.
Refer to Section
3.3
3.3
DRAINING THE BOILER
CENTRAL HEATING CIRCUIT
1.
Close all the CH water isolating valves on both the flow
and return.
2.
To drain the primary heat exchanger circuit: Remove
rubber plug from the base and drain the boiler using the
drain point.
Refer to Section
3.19
3.
After replacing any component on the boiler, remove the
hose, close the drain valve and open all system isolating
valves. Refit the rubber plug to the base to maintain
case sealing. Repressurise before proceeding to check
operation of the boiler.
4.
Check that the boiler operates.
Refer to Section
2.33 & 2.34
Refer to Section
3.2
Gas
Cond.
Drain
2
Содержание LOGIC HEAT2 H12
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