Instruction manual DXB heater
page 9
The standard settings on the main board
•
The S2 micro switches on “OFF”.
•
The switch S3 on position 1.
•
The thermostat has to be connected to the clamps 5 and 6 in the heater.
(Any changes too these switches must be performed with the power off, otherwise the changes
will not have effect. )
4.4
Controlling through an Interface with extra connectivity
The heater can also work with extra connectivity. By means of an external interface the
following signals are available:
•
ON/OFF demand
•
Reset
•
Ventilation only
•
Error signal
•
Flame signal
This interface can control up to 8 heaters at the same time.
•
Connect the communications wires to clamps 7 and 8 (Bus Port).
Change the settings from the switches on the control unit in the heater.
•
Each heater needs its own unique number to recognise the heater by the interface (to be
set with the micro-switch S2).
•
The switch S3 has to be set to 0 (OFF) for the heaters 2 to 8
It is possible, that with incorrect settings, the system is working. However, ultimately the
equipment will be damaged and stop working.
1 2 3 4 5 6 7 8
ON
1
0
S3
S2
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
Heater 1
Heater 2
Heater 3
0
1
S2
S3
0
1
0
1
