Flue Gas Temperature Sensor; Installing The Flue Gas Temperature Sensor; Wiring The Flue Gas Temperature Sensor - Viessmann Vitocrossal 200 Installation Instructions Manual

Vitocrossal 200 CM2 186 to 311 Installation

Flue Gas Temperature Sensor

Flue temperature sensor
The flue gas temperature sensors are connected directly
to the burner control. The burner control is factory set to
open at 230 o F (110 o C).

Installing the Flue Gas Temperature Sensor

Wiring the Flue Gas Temperature Sensor

During boiler operation the flue gas temperature sensor
sends a signal to the burner control and will disable the
burner operation when the flue gas temperature reaches
230°F (110°C). The temperature switch will reset once
the temperature drops approximately 20°F (10°C) from
the factory set point.
1. Remove spring clip (set aside). Install the sensor well
into the flue gas collector and torque to 44 lb/in (5Nm).
2. Insert the temperature probe into the sensor well.
Secure sensor lead with spring clip.
IMPORTANT
Careful not to damage the temperature probe or
capillaries during installation.
1. Connect the flue gas temperature sensor plugs to the
temperature sensor cable.
2. Route the temperature sensor cable along the top rail
to the burner control and connect. Secure all cables to
the rail with cable ties.
Legend
A Temperature sensor
B Connecting plugs 15A/15B
C Burner control plug
Boiler
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