Installation and operating instruction
Combustion manager W-FM 100 und W-FM 200
3 Product description
83054802 1/2018-07 La
25-228
3.3.5 Fan contactor contact
2
3
4
X4-01
RESET
OIL
GAS
1
1
2
X3-02
P
L
P
1
2
X3-01
L
L
MOTOR
ALARM
(1
The auxiliary contact (closer) of the fan contactor is connected to input X4-01:3.
The fan will only start, if no signal is present at the input during start release. If the
signal is missing once the fan has started, the combustion manager initiates a lock-
out.
(1
Only with frequency converter:
For fans with frequency converter, the signal is generated via a bridge from out-
put X3-01:1 (burner motor / fan).
3.3.6 Fuel selection
2
3
4
X4-0
1
RESET
OIL
GAS
1
2
3
4
X5-03
ON/OFF
1
3
2
L
0 1 2
The fuel selection switch is connected to input X4-01:1/2. The fuel selection
switch has priority over fuel selection via display and operating unit (ABE) or build-
ing management system (BMS). Fuel selection via ABE or BMS is only possible if
no signal is present at input X4-01:1/2. There is no priority between ABE and
BMS, the last fuel selection is valid and is retained after power failure.
3.3.7 Minimum oil pressure switch
2
3
X5-0
1
PE
min
1
P
L
P
The closing contact of the minimum oil pressure switch is connected to in-
put X5-01. On burners without minimum oil pressure switch the input is deactiv-
ated.
In oil operation the combustion manager expects a signal at input X5-01:2 from
Phase 38, in Phase 44 with heavy oil with gas ignition device. If the pressure falls
below the value set, the pressure switch contact opens and the combustion man-
ager initiates a lockout. In Phase 38 (in Phase 44 with heavy oil with gas ignition
device ) lockout occurs after a waiting time of 3 seconds, in the following phases
lockout is immediate.
To avoid a lockout caused by pressure fluctuations during fuel release, the input re-
acts time delayed in Phase 40 and 42. The time delay can be adjusted in parameter
PressReacTime
3.3.8 Max. oil pressure switch
2
3
X5-02
PE
max
1
P
L
P
The opening contact of the max. oil pressure switch is connected to input X5-02.
On burners without maximum oil pressure switch the input is deactivated.
In oil operation the combustion manager expects a signal at input X5-02:2 from
Phase 22. If the value set at the pressure switch is exceeded, the pressure switch
contact opens and the combustion manager initiates a lockout. In Phase 21 (start
release) lockout occurs after a waiting time of 120 seconds, in the following phases
lockout is immediate.
To avoid a lockout caused by pressure fluctuations during fuel release, the input re-
acts time delayed in Phase 40 and 42. The time delay can be adjusted in parameter
PressReacTime
Summary of Contents for W-FM 100
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