Service Schedule - Viessmann Vitocrossal 200 CM2 246 Operating Instructions Manual

Service and Maintenance

Service Schedule

The following is an overview of scheduled service steps.
Regular service work ensures reliable, energy-efficient, and environmentally friendly operation.
Frequency Performed by
Monthly Owner /
Operator
Annually Owner /
Operator
Heating
Contractor
10
Service
4
Check the system pressure frequently.
Ensure proper operation of the boiler control.
Inspect all seals; retighten or replace as necessary.
Ensure an adequate supply of combustion air/ventilation air into and out of
the mechanical room is maintained.
Ensure that nothing obstructs the flow of combustion - ventilation air, and no
chemicals, garbage, gasoline, combustible materials, flammable vapors, or liquids
are stored, not even temporarily, in the vicinity of the boiler.
Check for water on the floor from the discharge pipe of pressure relief valve
or any other pipe, pipe joint, valve, or air vent.
Test pressure relief valve and check for proper operation.
Check all operational high limits for proper operation.
Check for proper operation of the condensate neutralization system (if used).
Test pressure relief valve and check function.
Check the condition and fill status of the neutralization media.
Check the pH value of the flue gas condensate.
Check for moisture/water on vent pipe joints and appearance of ice on the vent
pipe or chimney outlet in the winter time.
Ensure service work/test is conducted at least annually by a qualified heating
contractor, and that any deficiencies are corrected immediately.
Test functionality of safety high limits.
Test burner with burner accessories according to the corresponding maintenance
checklist.
Test and establish proper chemical makeup of system water.
Check flue pipe condition, chimney connection and chimney itself.
Check pressure relief valve and system pressure, and verify proper operation.
Check heating pipe joints, valves, air vents, etc. System leaks must be corrected
immediately to avoid further defects. The cause of defect must also be determined
in order to avoid further problems.
Check for proper combustion air supply and ventilation of boiler / mechanical room.
Check for combustible materials or chemicals stored too close to the boiler.
Test high limits by dialing lower settings, switching burner on/off. If low water
cut-off is installed, check and verify proper function according to manufacturer's
instructions.
Vitocrossal 200, CM2 186 to 620 Operating