Supplied By www.heating spares.co Tel. 0161 620 6677
30
221100C
11 Supplementary Instructions
These fire fronts are fitted with combustion products
discharge safety devices.
As these fire fronts may be fitted to a Glow-worm 45,
56, 45R or 56R back boiler units WITHOUT a
combustion products discharge safety device, the
following instructions must be read and followed in
place of those in the main Installation and Servicing
Instructions.
To check if a combustion products discharge safety
device is fitted, refer to inset in diagram 11.1, if one is
fitted this supplement MUST be ignored.
11.1 General
To fit the fire front to one of the above EXISTING
GLOW-WORM BACK BOILER UNITS follow the
instructions below.
11.2 Installation
1. Do not fit the back boiler sensing tube as required in
the main installation and servicing instructions.
2. Fit the electrical connection supplied with the fire
front to the back boiler unit control box, see diagram
11.2 to identify if a four or six way terminal block is
fitted. Continue to fit the fire front as the relevant part of
the main installation and servicing instructions.
3. Any references in the installation and servicing
instructions to the back boiler unit combustion products
discharge safety device must be ignored.
11.3 Lighting the Boiler
The boiler controls are placed behind the fire front
plinth.
To remove the plinth, pull it gently forwards until it is
free.
Refer to diagram 11.1 to identify the controls.
Turn off the electrical supply at the mains supply outside
the appliance.
Check that all controls are calling for heat.
The clock, room thermostat and programmer, if fitted,
will be away from the unit, see manufacturer’s
instructions supplied with them.
Turn the thermostat control knob “B” to “Off” position,
that is, fully anticlockwise, “Off” to be against the
pointer.
Push in and slightly turn gas control knob “A” clockwise
until “
” is against its setting point, that is, set to “Off”.
Push in slightly and turn gas control knob “A”
anticlockwise until “
” is against its setting point, then
push fully in and hold in.
At the same time press and release piezo button “D”
until pilot burner “E” lights. Look at flame through
viewing window “F”.
At initial lighting of the boiler air may be present and
several attempts may be needed to light the pilot.
Keep the control knob “A” pushed in whilst operating
the ignition button.
When the pilot is alight and stable, keep knob “A” fully
pushed in for about 15 seconds then release. Check that
the pilot is still alight, look through window “F”.
If the pilot burner fails to stay alight turn gas control
knob “A” “Off”, that is, fully clockwise. Wait three
minutes. Repeat the lighting operation, only now keep
the control knob “A” pushed in for a little longer that
before after the pilot has lit.
NOTE. Always wait three minutes before attempting to
relight the pilot after it has gone out for any reason.
Push control knob “A” in slightly and turn anticlockwise
until “
” is against the setting point.
Note. If gas control knob “A” is turned to until “
” is
against the setting point, a safety lock prevents it being
turned on again. No attempt should be made to turn the
valve on again until at least three minutes have elapsed.
Turn on the electrical supply to the unit.
Turn thermostat control knob “B” clockwise until
“MAX” is against the setting point, the main burner will
light.
Adjust the thermostat to the required setting between
“MIN” and “MAX”. “MAX” is about 82
o
C.
Check that all external controls are set to your
requirements.
Refit the plinth by carefully locating the top edge of the
plinth into the sliders, then push gently back as far as it
will go.