2. DESCRIPTION OF THE APPLIANCE
2.1 General
The Atmos InterSystem wall-mounted gas boiler is designed for
delivering heat to the water of a CH system and, if required, heating hot
water via an indirect hot water tank.
The air supply and flue discharge can be connected to the appliance by
means of two separate pipes or a concentric connection.
The appliance has its own wall mounting strip, but can also be fitted to
an optional wall mounting frame that allows top connections. An optional
pipe mounting bracket for use with the wall mounting strip is available.
These are supplied separately.
The Atmos InterSystem wall-mounted gas boiler has the CE quality mark
and the Gas certification labels HE (Sedbuk A), SV , and IP44 Protection
class.
The appliance as delivered is suitable for natural gas (G20). A
conversion kit for propane (G31) can be supplied upon request.
2.2 Operation
The Atmos InterSystem wall-mounted gas heater is a modulating high
efficiency boiler. This implies that the power is adjusted to the heat
demand.
In the aluminium heat exchanger is an integrated copper circuit.
The appliance has been provided with an electronic controller that
controls the fan with the heat demand from the heating system or the hot
water tank, opens the gas valve and ignites the burner, continuously
monitors the flame and controls it dependent on the power required.
2.3 Operating conditions
A code indicates the operating condition of the appliance on the service
display of the operating panel.
- Off
The appliance is not operating, but there is electrical power. There is no
response to any demand for CH (heating or hot water tank). The frost
protection is active though. This means that the pump starts running and
the heat exchanger is heated when the temperature of the heat
exchanger drops to 5°C.
When the frost protection is activated, code
7 appears (heating of the
heat exchanger).
Waiting position
The LED of the on/off button is on. The appliance is ready for
responding to the demand for CH (heating or hot water tank).
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