Lighting The Boiler - Glow-worm Ultracom 24cxi Instructions For Use Manual

Initial Lighting
Remove the cover plate, refer to the fault finding section on
page 15 and diagram 8.
Check that all isolating valves and the gas service cock on
the appliance are open and that water flows from the hot
water taps, then close taps, refer diagram 3.
Note: If you are in any doubt about the boiler being filled
with water contact your installer or Glow-worm's own service
organisation using the telephone number on the inside front
cover of this booklet.
Do not operate the boiler without water.
1. With no demand from any external controls, switch on the
electrical supply to the boiler.
A - Central Heating Isolation Valve
B - Domestic Hot Water
C - Gas Service Cock
D - Domestic Cold Water
10

Lighting the Boiler

E - Condensate drain
F - Double Check Inlet Valve
G - Safety Discharge Valve
Diagram 3
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Note: If the electrical supply has been interrupted for any
reason, you may need to set the clock and day before con-
tinuing, refer to diagram 5.
2. Select your required function, refer to diagram 2, press
"Mode" repeatedly to scroll through your options and select
one of the following:-
Timed central heating with domestic hot water.
Constant central heating with domestic hot water.
Domestic hot water only.
Boiler functions ALL switched off.
3. Turn ON your external controls and select the room tem-
perature required.
The boiler will operate automatically.
Note: The display will indicate the Heating system pressure
in bar or:
•
Water temperature, when heating is on.
•
Domestic Hot Water temperature setpoint, when
there is a demand.
•
Fault Code (see section Fault Finding)