Check Thermal Insulation; Check Viessmann Mixing Service Valve For Proper Operation And Leaks; Adjust Burner; Check Separate Heating System Controls - Viessmann VITOCROSSAL 300 Service Instructions Manual

Inspection and Maintenance

Check Thermal Insulation

Check Viessmann Mixing Service Valve for Proper Operation and Leaks

Adjust Burner

Check Separate Heating System Controls

Check for Proper DHW Production

18
Vitocrossal 300, CT3 Series Service
Check thermal insulation fit and adjust if necessary.
1. Remove the motorized lever from the mixing valve
handle.
2. Check mixing valve for ease of operation.
3. Check mixing valve for leaks.
Replace the O-rings if the mixing valve leaks.
4. Snap the motorized lever back into place.
The input of the burner used with the Vitocrossal 300
boiler must be adjusted so that the maximum boiler input
of the particular boiler model is not exceeded.
The burner must also be adjusted for proper combustion
results. CO values between 9 and 10% are possible.
2
Follow manufacturer's instructions
supplied with burner.
In case additional controls are installed
in the boiler room, e.g. control aquastats, mixing valves,
controls etc., please observe their respective operating
instructions.
The Vitocrossal 300 boiler may be used to supply
domestic hot water heating by means of an indirect-fired
hot water storage tank. The appropriate connections
to the boiler must be made, as well as the correct size
circulating pump must be used. The control circuit
to provide domestic hot water is already provided within
the Vitotronic control (motor contactor may be required
in some instances). Please contact your local Viessmann
Sales Representative for details.