Glow-worm Energy Saver Combi 2 and Gas Valve - Manual (Page 4)

4 221854B
User Controls
The boiler is factory preset to supply domestic hot water up to
65
o C and central heating up to 70 o C.
The operation of the boiler can be altered by using the ‘mode’
button. Temperature Selection and Control Options are detailed
in sections 11.8 to 11.11.
Additional Options
Other modes are available by repeatedly pressing the ‘mode’
button. These cover fault indication and servicing and should
only be accessed by the service engineer. Repeated pressing
of the ‘mode’ button will eventually return the display to show
boiler temperature, see diagram 11.4.
To Turn the Boiler Off
It is preferable to leave the electrical supply on whenever
possible to permit operation of the built-in frost protection (see
‘Protection Against Freezing’ below) and daily pump and valve
exercise.
To turn off the central heating use the room thermostat or clock/
timer.
To turn off the domestic hot water select (see Control
Options in section 11.8 and diagram 11.4).
For holiday mode, refer to section 11.8.
To turn off the boiler for servicing, isolate it from the electrical
supply. To turn it on again follow the instructions given in ‘To
Operate the Boiler’.
Maintenance and Servicing
If this appliance is installed in a rented property there is a duty
of care imposed on the owner of the property by the current
issue of the Gas Safety (Installation and Use) Regulations,
Section 35.
Servicing/maintenance should be carried out by a competent
person in accordance with the rules in force in the countries of
destination.
To obtain service, please call your installer or Heatcall (Glow-
worm’s own service organisation) using the telephone number
on the front cover of this booklet.
Please be advised that the ‘Benchmark’ logbook should be
completed by the installation engineer on completion of
commissioning and servicing.
All CORGI Registered Installers carry a CORGI ID card, and
have a registration number. Both should be recorded in your
boiler Logbook. You can check your installer is CORGI registered
by calling CORGI direct on :- 01256 372300.
Clearances
If the boiler is fitted into a compartment or cupboard do not use
the compartment or cupboard for storage.
Protection Against Freezing
The boiler has a built in frost protection programme as long as
the electricity and gas are left switched on.
This device only protects the boiler. Any other exposed areas
of the system should be protected.
If the mains electricity and gas are to be turned off for any long
periods during severe weather, it is recommended that the
whole system, including the combination boiler, should be
drained to avoid the risk of freezing.
If in doubt, contact you installation/servicing company for advice.
As a safety feature the boiler will stop working if the condensate
drain becomes blocked. The display will repeatedly flash ‘
0
’
then
‘
8
*
’
. During freezing conditions this may be due to the
forming of ice in the condense drain external to the house.
Release an ice blockage by the use of warm cloths on the pipe.
Press the reset button to restart the boiler. Contact your
installation / servicing company if the fault persists.
Draining and Filling
This boiler works in a pressurised system which must only
be drained, refilled and pressurised by a competent person.
If the pressure gauge indicates a loss of system pressure, i.e.
less than 0.7bar, the appliance will shut down showing flashing:
‘
1’
then ‘
2
*
’ on the display. YOU MUST CONTACT YOUR
INSTALLER.
Pressure Relief Safety Valve
A pressure relief safety valve and discharge pipe is fitted to
the boiler. This valve must not be touched.
Should there be
any discharge from the pipe, isolatethe boiler electrical supply
andcontact your installation/servicing company.
Cleaning
This appliance contains metal parts and care should be taken
when handling and cleaning with particular regard to edges.
The boiler casing can be cleaned using a mild liquid detergent
with a damp cloth, then a dry cloth to polish.
Do not use any form of abrasive or solvent cleaner as you may
damage the paint work.
Boiler Casing
Do not remove or adjust the casing in any way, as incorrect
fitting may result in incorrect operation or failure to operate
at all. If in doubt seek advice from the local gas company or your
installation/servicing company.
Replacement Parts
If replacement parts are required apply to your local supplier or
British Gas.
Please quote the name of the appliance.
Pluming from flue terminal
All condensing boilers produce a plume of water vapour from
the flue terminal. This is due to the high efficiency and hence
low flue gas temperature. This may increase in wet, damp
weather but is nothing to worry about.
Operating the Boiler