Supplied By www.heating spares.co Tel. 0161 620 6677
5
221474C
User Indicator Lights
Identify the lights be reference to diagram 3.
The Orange - Mains light - shows that the electrical supply to the
boiler is on.
The Green - Running light - shows that the boiler is working
normally, in either the central heating or hot water modes.
If the Red - Low Central Heating water pressure light flashes
continually it is warning of a loss of pressure in the central heating
system.
During this time the red light will continue to flash and the boiler will
not work.
If this happens you MUST call your installation or servicing company.
To Operate the Boiler
1. Check that all five isolating valves are open, the slots in line with
the length of the valve, see diagram 4.
2. Open the door, by pushing at the side opposite to the hinge.
3. CAUTION. A sealed pressurised system must be filled and
pressurised by a competent person.
Only operate the boiler when you are sure that the system has been
filled and pressurised. Check this by looking at the pressure gauge
“A”, diagram 3, it should read 0.7bar minimum.
4. Check reset button neon, refer to previous instructions on page
3.
5. Open a hot water tap, check that water flows, then close it.
6. If you are in any doubt about the boiler being filled with water
contact your installation/servicing company or the local gas company.
7. Check that the electrical supply to the boiler is ON at the external
isolator.
8. Set switch “C”, clock/timer (if fitted) and any remote controls as
required.
Close the door.
In certain circumstances, a surge in water pressure may cause the
appliance to operate momentarily, this will be indicated by the pump
starting and the fan speed increasing. This is quite normal.
Central Heating Selector Switch
For central heating set switch “C” to “On” as shown in diagram 3.
The main burner will light to provide central heating.
Note, when the central heating is also controlled by a room
thermostat, clock/timer or other remote control these controls must
be calling for heat for the boiler to operate.
The user central heating temperature control enables you to control
the temperature of the central heating water. The knob can be set
between Minimum, about 55
O
C and Maximum, about 80
O
C.
If a hot water tap is opened while the boiler is on for heating, the
burner flame will increase in size and priority will be given to hot
water. When the hot water tap is closed, the main burner flames will
decrease in size but will remain alight until the boiler controls or any
heating controls switch it off.
For domestic hot water only, set switch “C” to “Off”, as shown in
diagram 3.
The main burner will then light when any domestic hot water tap is
opened and go out when the tap is closed.
Which ever position switch “C” is in domestic hot water will be
available.
To Turn the Central Heating Off
To turn the heating off for short periods, set switch “C” to “Off” as
shown in diagram 3 and make sure all the domestic hot water draw
off taps are closed.
Set switch “C” to “On” as shown in diagram 3 to turn the central
heating on again..
To Turn the Boiler Off
To turn the boiler off, isolate the boiler from the electrical supply.
To turn on again following the operating instructions.
Domestic Hot Water Temperature
NOTE. The mains water temperature in the winter is lower than in
the summer.
The water temperature can be increased or reduced by adjusting
the flow rate at the hot water draw off.
Maintenance and Servicing
To ensure the continued efficient and safe operation of the appliance
it is recommended that it is checked and serviced as necessary at
regular intervals. The frequency of servicing will depend upon the
particular installation conditions and usage, but in general once a
year should be enough.
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
behind the controls access door, see diagram 3.
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
The boiler requires a clearance in front, below and at the sides of
the casing for safety, servicing and maintenance access, see
diagram 5.
Protection Against Freezing
If the boiler is to be out of use 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.
Draining and Filling
CAUTION. This boiler works in a pressurised system which must
only be drained, refilled and pressurised by a competent person.
Note: If the pressure gauge indicates a loss of system pressure,
that is, less than 0.7bar, YOU MUST CONTACT YOUR INSTALLER.
Instructions for Use