Removing The Temperature Limit Switches - Viessmann Vitocrossal 300 CA3B Disassembly And Reassembly Instructions

Disassembly

Removing the Temperature Limit Switches

Legend
A Capillary bulb
B Supply water temperature limit switch
C Flue gas temperature limit switch
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Vitocrossal 300, CA3B Series 2.5 to 6.0 Technical Data
1. Remove the screw holding the limit switches B
and C.
2. Remove limit switches B and C from wells.
3. Label B supply water temperature limit switch
and C flue gas temperature limit switch.
4. Disconnect wiring from limit switches B and
C and set both limit switches aside.
5. Remove cable ties from the cable trays and wiring.