7
E
.
1
3
.1
1
.0
6
•
G
.
2
1
.0
9
.1
1
13 Air flap positioning motor
The air flap positioning motor is designed for air flap adju-
stment on progressive two-stage burners or modulating
burners. The motor is activated electronically via the
microprocessor-controlled control box.
Do not open the air flap positioning motor. The optics
can become damaged irreparably. No warranty will be
given if the seal is broken.
14 Air pressure switch
The air pressure switch is a differential pressure switch
and monitors pressure at the forced-air burner.
The air pressure switch is preset at the factory.
15 Gas pressure switch for gas inlet pressure
The gas pressure switch on the gas train serves to monitor the gas inlet pressure. The burner is shut down
if the gas inlet pressure drops below the set minimum value (preset at factory). The burner starts up auto-
matically again when the minimum pressure is exceeded.
16 Gas pressure switch for VPS
The gas pressure switch for VPS is preset to 10 mbar at the factory.
The operating point of the gas pressure switch for VPS must be set to half the inlet flow
pressure.
Summary of Contents for MGN 1350 M3D DLU
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