External Load Controller (X5-03) - Weishaupt W-FM 100 Installation And Operating Instruction

3 Product description
1
ON/OFF
2
3
3
2
4
L
1
ON/OFF
P
2
3
3
2
P
4
L
1
ON/OFF
P P
2
3
P
3
2
P P
4
L
1
ON/OFF
2
3
3
2
4
L
1
ON/OFF
P
2
3
3
2
P
4
L
1
ON/OFF
P
2
3
3
2
P
4
L
1
ON/OFF
P
2
3
3
2
P
4
L
83054802 1/2018-07 La
Installation and operating instruction
Combustion manager W-FM 100 und W-FM 200

3.3.16 External load controller (X5-03)

For operation with load controller via contacts, parameter LC_OptgMode must be
set to ExtLC X5-03 see [ch. 6.12.2]. The contact for heat demand is connected
to input X5-03:1 (burner ON/OFF).
Modulating operation with load controller
If input X5-03:2 (CLOSED) is activated, the burner capacity reduces.
If input X5-03:3 (OPEN) is activated, the burner capacity increases.
If none of the two inputs is activated, the burner capacity remains unchanged.
Modulating operation with thermostat
If thermostats or pressure regulators are connected to inputs X5-03, the modulat-
ing fuel can only be operated in sliding two stage operation.
At heat demand input X5-03:2 (CLOSED) is activated and the burner drives to par-
tial load. If the temperature drops below the value set, input X5-03:3 (OPEN) is ac-
tivated and the burner drives to full load.
Multi-stage operation (fuel oil only)
Two and three stage:
Input
X5-03:1
X5-03:2
X5-03:3
Low impact start:
At heat demand and with the bridge between terminal 1 and 2 the burner ignites in
stage 1 and then automatically drives to stage 2. If input X5-03:3 is also activated
the burner drives to stage 3.
Alternatively, low impact start can be carried using a change-over contact.
Change-over release:
A bridge connects terminals 2 and 3. At heat demand the burner drives to stage 1.
If inputs X5-03:2/3 are then activated simultaneously the burner drives via stage 2
to stage 3.
30-228
Operating mode
two stage
Stage 1
Stage 1
Stage 2
three stage
Stage 1
Stage 2
Stage 3