Winterwarm DXA100, Руководство по установке

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6 Operating the air heater
6.1 Burner cycle
The air heater’s display shows the current status of the
burner cycle (figure 11).
Figure 11 - Display of the air heater
Display Status Description
0 Stand-by Waiting for heat demand.
1 Reset Software reset.
3 Pre-check Zero position check pressure switch.
4 Pre-purge 30 seconds of pre ventilation by the
combustion fan. The pressure switch is
checked.
15 seconds of pre-ventilation by the fan. The
pressure switch is checked.
5 Pre-ignition Ignition without opening the gas valve.
6 Ignition 5 seconds of ignition. The gas valve opens.
7 Flame check The air heater checks if the flame is present.
8 Burn The heater fires up and burns.
9 Minimum Before the flame stops, the burner will
modulate to minimum power.
10 Burner off The gas valve closes. The flame stops.
11 Post purge Burner fan purges with fresh air.
System fan cools the heat exchanger.
6.2 Minimum firing time
The heater will always fire for a minimum of 15 seconds,
even if the heat demand stops. This is to avoid a large
amount of start and stops.
NOTICE The heater will try to ignite 2 times before it stops
and gives an error.
6.3 Summer ventilation
The fan can be set to run in the summer. Follow the
instructions in the user manual of the special Room
thermostat.
6.4 Overheating protection
The air heater's heat exchanger and flue system are both
protected from excessive temperatures.
6.4.1 Heat exchanger
An NTC sensor is located near (or on) the heat exchanger.
This sensor monitors the heat exchanger temperature.
If the heat exchanger becomes too hot, this sensor will
cause the heating process to stop. Depending on the
temperature, the air heater performs the following actions:
• Step 1: Power reduction (when possible).
• Step 2: Burner stop, followed by an automatic
restart when cooled down (display: E05 / E36).
• Step 3: Burner stop, followed by a Lock Out. A
manual reset is required. (display L15).
NOTICE A manual reset can be done on the electronic
circuit board or remotely with the special Room
thermostat.
6.5 Air passage check
The air heater is equipped with a vane switch to check the
passage of air through the heater. If the air passage is too
low, the heater will stop. Error L-14 will be shown on the
display.
6.6 Gas supply pressure
The gas supply pressure during stand-by and operation
should be between certain values, depending on the gas
type:
Natural gas: between 17 and 30 mbar.
Propane & Butane: between 25 and 57 mbar.