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Achtung : Vor der Inbetriebnahme die Bedienungsanleitung beachten.
Attention : Please read operating instructions before start - up.
Attention: Avant la mise en route, lire attentivement le mode d'emploi.
0. Contents
1. Function
2. Positioning and mounting
2.1 Mounting of the unit
2.2 Electrical connection
2.3 Connection of burner
2.4 Connection of ducts
3. Starting
3.1 Winter operation
3.2 Summer operation
3.3 Operation with fan speed regulation
4. Service and cleaning
4.1 Filter
4.2 Burner chamber and heat exchanger
4.3 Further components
5. Fault Finding
6. Wiring Diagrams
7. Technical Data
1. Function
Dantherm warm air heaters are indirect fired units for
oil or gas firing. The heat produced by the burner is
transferred to the air which is passed over the burner
chamber and heat exchanger by a fan.
On DV 20/30 units the cool air is taken in at the bottom
of the unit and the hot air is blown out in the top. On DV
M 20 the air is blown in the opposite direction, so that
the cool air is taken in at the top of the unit and the
heated air is blown out at the bottom.
The operation of the unit is controlled as follows:
- When the room thermostat has signalled to the unit
to start, the burner runs with pre-purge of the burner
chamber. Shortly after the burner will ignite.
- When the burner has been working for a few minutes
the air in the heater will have reached a temperature
sufficiently high for the fan to start automatically. The
purpose of this delayed starting of the fan is to avoid
blowing cold air into the room when the heater starts.
From the factory the fan is set to start at a temperature
of 50°C.
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