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WD274/1/2002
Cleaning
Normal casing cleaning only requires dusting with a dry cloth. To remove
more stubborn marks wipe with a damp cloth and finish with a dry cloth.
Boiler Setup
1)
Check that the gas
supply from the gas
meter is turned ON
2)
Switch on the
electric supply to
the boiler and
controls and set the
heating controls to
call for heat.
To Light The Boiler
The C40 and C55 boilers
incorporate dual thermostats to allow two different zones to be connected to operate
at two different temperatures. Generally the central heating zone is connected to
zone 1 and the hot water cylinder to zone 2. You should ask your installer to advise
whether your boiler serves one or two zones.
To set thermostat temperatures you must turn the relevant knob to the required
position. As you turn the knob the display will change to either "c nn" or "d nn",
depending on the knob being turned. As the knob is turned the required temperature
(the last two digits of the display) change. Set the knob to the position which gives
the required temperature. When the knob is release the display, after a few seconds,
will return to normal.
If the boiler detects whether zone requires heat the following sequence will occur:
1)
The fan and pump will start inside the boiler and the display will indicate "1 nn"
to show the boiler has started the first stage of the ignition sequence.
2)
After 5 seconds the display will change to "2 nn" to indicate the spark ignition
of the sequence has started.
3)
After 3 seconds the display will change to "3 nn" for zone 1 and "4 nn" for
zone 2, to show the boiler is now alight.
4)
The boiler will adjust the output to best match the demands of the system.
The last two digits of the display will continuously show the boiler
temperature. The boiler control will allow the temperature to overshoot the
setting by up to 5 degrees before shutting down. The standard display codes
are as follows:
0 nn
Boiler commencing ignition sequence
2 nn
Boiler in standby as no heat request from either zone 1 nn
Boiler generating spark ignition
page ii
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