the hot water mode until the demand is satisfied. This
interruption in the central heating is only when the demand for
hot water is present and should not be noticed.
NOTE If the optional WM SIB is fitted, the boiler will operate
for a few minutes approximately once every four hours to
maintain the temperature within the WM SIB.
GAS CONSUMER COUNCil
The Gas Consumer
Council
(GCC) is an independent
organisation which protects the interest of gas users. If you
need advice, you will find the telephone number in your local
directory under 'Gas'.
CLEARANCE REQUIRED FOR INSTAllATION
AND
SERVICING.
The following MINIMUM CLEARANCES must be available for
installing and servicing the boiler. DO NOT restrict this space
by the addition of shelves etc.
Right hand side
5 mm (1/4 in)
Left hand side
5 mm (1/4 in)
Top (above casing)
250 mm (10 in)
Bottom (below casing)
200 mm (8 in)
Front
450 mm (18 in)
VENTilATION
No purpose provided
air vents are required
in a room
containing this appliance (Le. appliance is room sealed). If the
appliance
is installed
in a cupboard
or compartment,
ventilation must be provided. Permanent air vents are required
in the cupboard or compartment, at high level and at low level,
either direct to outside air or to the room. Both high and low
level air vents must communicate with the same room or must
both be on the same wall to outside air. DO NOT allow these
ventilation openings to become obstructed.
TO LIGHT THE BOilER
(Refer to Figure 1)
IF OPTIONAL TIMER IS FITTED:
a
Ensure that the gas and water supplies are turned on, the
electricity supply to the boiler is off, the Mains ON/OFF switch
is set to OFF, the timer is correctly set (refer to figure 2), and
the room thermostat (if fitted) is set at the desired setting. Set
the central heating OFF / ON / TEMPERATURE CONTROL to
the desired
temperature
(normally
maximum
if a room
thermostat is fitted - unless radiators are likely to be touched
by children or elderly persons)
b
Switch ON the electricity supply to the boiler and turn the
Mains ON/OFF switch to ON.
c
The boiler is now ready to light automatically. If the timer is
set to an 'on' period and the room thermostat (if fitted) calls for
heat, the boiler will light and provide central heating.
If a hot water tap is opened the boiler will supply hot water.
IF OPTIONAL TIMER IS NOT FITTED:
a
Ensure that the gas and water supplies are turned on, the
electricity supply to the boiler is off, the Mains ON/OFF switch
is set to OFF, any external controls (timer and / or room
thermostat) (if fitted) is/are set at the desired setting(s).
Set the central
heating
OFF / ON / TEMPERATURE
CONTROL to the desired temperature (normally maximum if a
room thermostat is fitted - unless radiators are likely to be
touched by children or elderly persons). If central heating is
not required and no timer is fitted, turn this control to the OFF
(0) position.
b
Switch ON the electricity supply to the boiler and turn the
Mains ON/OFF switch to ON.
c
The boiler is now ready to light automatically. If heating is
2
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