Glow-worm Xtramax - Manual (Page 4)

4 4000116705-2
Important Information
Heating System Controls
The heating system must be controlled as described in the
relevant part of the current issue of :
Building Regulations, approved document L1, and the
references:
1) GIL 59, 2000: Central heating system specification (CheSS)
and
2) GPG 302, 2001: Controls for domestic central heating
system and hot water. BRECSU.
3) The domestic heating and hot water guide to the building
regulations 2001.
Thermostatic radiator valves may be installed, however they
must not be fitted in a room where the room thermostat is
located.
Gas leak or fault
If a gas leak or fault exists or is suspected, turn the boiler off and
consult the local gas supply company or your installation/
service company.
Air in the heating system
Persistent air in the heating system may indicate leaks in the
system or corrosion taking place. Call your Installation/Servicing
company.
The XTRAMAX boiler is a wall mounted modulating combination
boiler with electronic ignition providing central heating and
stored hot water.
The boiler is of the II
2H3+
category for use with Natural Gas (G20)
as distributed in the United Kingdom, or Butane (G30), Propane
(G31) with the appropriate conversion kit.
The boiler has a fan assisted balanced flue which both discharges
the products of combustion to and draws the combustion air
from the outside of the room.
The boiler is suitable for horizontal top outlet flue connection
and can be fitted with horizontal flue, vertical flue or twin-pipe
flue. Refer to flue options guide for further information, this is
available from your nearest stockist.
Both the central heating and domestic hot water temperature
are user adjustable.
Domestic hot water demand always has priority over heating
demand.
The boiler is designed for use as part of a sealed water central
heating system with fully pumped circulation. The pump,
expansion vessel and associated safety devices are all fitted
within the boiler.
The boiler can be installed against either an external wall or on
an adjacent inside wall, that is, the flue system will pass directly
to the rear or to either side to the terminal fitted on the outside
wall face.
Appliance Introduction
The installation of this boiler must be carried out by a competent
person in accordance with the rules in force in the countries of
destination.
Manufacturer’s instructions must not be taken as overriding
statutory requirements.
These instructions should be carefully followed for the safe and
economical use of your boiler.
Note: The boiler serial number is marked on the data label
attached to the rear of the control box. The 'Operating the
Appliance' section describes how to safely use the boiler.
Accessories
A range of accessories are available.
For further information contact your supplier.
Flue options
There are various flue systems to choose from, for detailed
information refer to flue options guide, which is available
from your nearest stockist.
Draining and filling
Caution: The boiler is installed as part of a sealed system which
must only be drained and filled by a competent person.
If the boiler is to be out of use for any long periods during severe
weather conditions, it is recommended that the whole system,
including the boiler, be drained to avoid the risk of freezing.
If in doubt, consult your servicing company.
Protection Against Freezing
The appliance has a built in frost protection programme as long
as the electricity and gas are left switched on.
This device operates the burner and system pump when the
temperature inside the boiler falls below 6
0 C.
Any other exposed areas of the system should be protected by
a separate frost thermostat.
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 boiler, should be drained to avoid
the risk of freezing. Make sure that, if fitted, the immersion
heater in the cylinder is switched off.
If you have a sealed water system contact your installation/
servicing company as draining, refilling and pressurising MUST
be carried out by a competent person.