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Additional units required for controlling the burner
12/69
Siemens Building Technologies
HVAC Products
Burner controls
Actuators
Single potentiometer for use with actuators SQM..., SQN...90° / 1000 W
Single potentiometer 135° / 1000 W
Double potentiometer 90° / 1000 W
Double potentiometer 135° / 1000 W
Load controller
¹)
After a certain number of operating hours, the backlash of the geartrain of these actuators
can reach levels that do not allow the RVW2... to achieve precise positioning, especially in
the case of constant loads with the nominal torque or in heavy duty environments.
In that case, shutdown can occur, requiring the actuators to be replaced.
Electronic Air / Fuel Ratio Control System
4 Product range overview
LAL1..., LAL2...
LGK16..., LOK16...
LFL1..., LEC1...
SQM54..., SQM30...¹), SQN31...¹)
ASZ12.803
ASZ12.833
ASZ22.803
ASZ22.833
CC1P7873.1en
RWF40...
15.10.2002
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Table of Contents
Troubleshooting
