Flue Gas Temperature Switch; Installing The Flue Gas Temperature Switch; Wiring The Flue Gas Temperature Switch - Viessmann Vitocrossal 200 CM2 Series Installation Instructions Manual

Vitocrossal 200 CM2 Installation Instructions

Flue Gas Temperature Switch

Flue temperature switch
Boilers with a polypropylene flue gas collector are supplied
with a flue gas temperature switch, which must be installed.
Boilers with a stainless steel flue gas collector do not have
provisions for a sensor well but may connect an optional
flue gas temperature switch in the venting system.
Contact your venting supplier.
This temperature switch is factory set to 212°F (100°C).
Do Not Adjust.

Installing the Flue Gas Temperature Switch

Wiring the Flue Gas Temperature Switch

During the operation of the boiler, should the switch
become activated (open as a safety cut-out), check the
boiler control for a C1 fault on the display. Also check
the flue gas collector and/or vent system for any damage.
The temperature switch can be reset once the
temperature drops approximately 20°F (10°C) from the
factory set point.
1. Install the sensor well into the flue gas collector and
torque to 44 lb/in (5 Nm).
2. Insert the temperature probe into the sensor well.
IMPORTANT
Careful not to damage the temperature probe or
capillaries during installation.
3. Insert the support bar into the back of the temperature
switch. Push the temperature switch against the
sensor well and secure the switch to the sensor well
with a screw.
4. Remove the 4 cover screws and the cover.
5. Install the flue pipe adaptor to the flue gas collector
and secure with the supplied gear clamps.
1. Connect the wiring to the switch terminals.
2. Connect the switch box cable connector..
3. Reattach the cover with the 4 screws.
Note: For junction box and control connection see page 21.
Boiler
19