Procedure; Connections - HEYLO K 120 Gas Bedienungsanleitung

3. Procedure

Natural and liquefied gas fired hot air generators are connected to the in-building gas supply system or
to a mobile liquefied gas tank by means of a flexible or solid DVGW approved connection pipe. The
gas volume required for the heating capacity is passed to the burner through the gas connection and
the gas pressure controller, and is then ignited. A flame is produced which together with the
combustion gases heat the combustion chamber and the heat-exchanger.
After a short heating up time the temperature controller switches the fan on. This enables a very short
heating up time. The fan blows the cold air drawn in through the combustion chamber and the heat
exchanger. Thus, it is heated. The heated air exits on the other side through the exhaust vent.
For heating, set the master switch to position II "Heating". First of all the burner starts up and after the
combustion chamber and the heat exchanger have heated up, the fan will start up and will supply
warm air.
A potentially connected room temperature controller has to be set higher than the ambient
temperature as otherwise the device does not start up because there is no input.
For ventilation, set the master switch to position I "Ventilation" on the switch cabinet. The fan is
operational exclusively; the device now operates as a ventilation unit. To switch the device off, turn the
master switch to position 0.

4. Connections

Power connection
The device is operated on 230 V alternating current, 50 Hz. K 120 Gas is operated on a 2.5 m cable
with a shock-proof plug. The device may be connected to such mains only which are protected by a
fuse of 10 A minimum. Longer supply lines should have a minimum of 3 x 2.5 sqmm or 5 x 2.5 sqmm
in cross-section in order to prevent a strong drop in power to the device. At an undervoltage of up to
170 V, the device continues to operate perfectly. In case of failure, check the voltage of the device.
Operation with room temperature controller
It the device should keep the temperature in closed rooms at a certain temperature automatically, a
230 V room temperature controller is connected. For this purpose the cap of the device socket has to
be removed; subsequently the thermostat plug can be pushed into the socket insert.
Connection to chimney
For operation in the open or in open rooms, we recommend a 1 m pipe, 200 mm diameter, with a rain
hood in order to prevent penetration of rain and dirt and to ensure low draught.
In case of temporary operation in closed rooms, such as building work in winter, the combustion gas
has to be pass out into the open. The exhaust gas line has to be laid in such a way that at least 10 Pa
draught is ensured and by no means a counter pressure is possible in the pipe. For this reason,
ensure that the exhaust gas line rises and its end goes up vertically. It has to be passed above eaves
height or better above the ridge height in order to prevent the counterpressure caused by wind and
thus sooting of the burner. The exhaust gas pipe must have a minimum distance of 0.5 m from
combustible matter and has to be attached reliably. The diameter must not be any smaller than the
exhaust gas socket of the hot air generator.
For permanent operation in closed rooms, the German building regulations demand a connection to a
chimney with a diameter of 200 mm, which is passed above the ridge by at least 0.40 m.
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