Check Functioning Of Safety Valves; Check Electrical Connections - Viessmann Vitodens 200-W B2HA 112 Installation Instructions Manual

Vitodens 200-W B2HA 112, 150, 399, 530 Service

Check Functioning of Safety Valves

Check Electrical Connections

Check Gas Pipes and Fittings for Leaks
Ensure proper operation of low water cut-off(s)
(if applicable), pressure relief valve, and pump(s).
Check pressure gage, air vent and pressure relief valve.
Ensure that pressure relief valve does not leak and that
it operates in accordance with information provided by
the manufacturer.
Refer to maintenance instructions supplied
with low water cut-offs, pumps, etc.
Flush float water type low water cut-offs (if used).
Follow local regulations with respect to backflow
preventers.
If oil-lubricated pumps are used, ensure proper lubrication.
If motorized zone valves are used, refer to maintenance
instructions provided with zone valves.
Ensure all plug-in connectors and strain reliefs make
positive contact and are seated properly.
Refer to the Installation Instructions
WARNING
The gas supply piping must be leak tested before placing
the boiler in operation.
CAUTION
Ensure all joints of gas line are pressure tight and that
gas valves do not leak when under normal operating
pressure (use approved leak detection liquid).
Service
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