Right : 25 mm & Front : 305 mm. Extended clearance is required to the front
to allow for access for servicing.
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 C90 and C110 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 DHW calorifier 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 both the displays, one for each module, 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 displays) change. Set the knob to the
position which gives the required temperature. When the knob is released 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 module and the displays will indicate “1
nn” to show the boiler modules have started the first stage of the ignition
sequence.
2)
After 5 seconds the displays will change to “2 nn” to indicate the spark ignition
of the sequence has started.
WD356/0/2003
page ii
