Intergas Heating Ltd
11
3
GENERAL BOILER INFORMATION
3.1
General
The Intergas Compact HRE SB wall mounted, gas fired boiler is a closed appliance.
The appliance is intended to transfer heat to the water circuit in a CH system and when
an indirectly heated domestic hot water (DHW) storage cylinder is installed, apply heat
to the DHW installation.
The air supply and combustion gas flue connection is as standard prepared for a
concentric 60/100 horizontal flue system. The appliance can be connected to a wall
mounting jig and expansion vessel. The appliance can also be connected without the
wall mounting jig using the robo kit.
The Intergas Compact HRE SB wall mounted gas fired boiler carries the CE rating and
IP44 electrical protection.
The appliance is supplied as standard for natural gas (G20). For usage of propane gas
(G31) the boiler can be modifed by changing the gas injector. A gas conversion kit can
be ordered at Intergas Heating Ltd.
NOTE
Modification of the boiler can only be done by a qualified
competent person.
3.2
Boiler controller
An electronic control unit, consisting of a boiler controller and separate ignition module
which is placed on the gas valve
,
provides direct burner ignition and flame supervision
along with continuous modulation of the burner’s gas supply.
3.3
Parameter list
All boiler adjustments are accessible through the parameter list in the software.
3.4
Heat transfer
Heat transfer to the boiler’s heating circuit is obtained via a primary, gas to water heat
exchanger within a hermetically sealed combustion chamber. A modulated speed fan
blows the gas/air mixture into the combustion chamber and
expels
the products of
combustion to outside air via an associated flue system.
3.5
Central heating system/automatic by-pass
An integral pump located in the boilers hydraulic circuit circulates water through the
heat exchanger to the central heating circuit. In the event of reduced or interrupted
water circulation in the central heating circuit, an automatic system by-pass should be
fitted as far away from the boiler as possible.
Note
It is no longer permissible to utilize a non-thermostatic controlled radiator as a by-pass.
3.6
Room temperature control
Room temperature can be controlled by the use of an external room thermostat and
thermostatic radiator valves.
Note
Connection of the room thermostat is dependant on the operating voltage of the
thermostat.
3.7
Integrated clock
The boiler incorporates an integrated clock, which allows the setting of central heating
periods (See the User Instructions, ‘Operation and display read-out’ for details) and the
boiler’s control panel incorporates an LED display, which indicates the state of
operation and fault defect codes.
Note
For S and Y plans set integral clock to C-ON and fit an external timer/programmer.