40
Commissioning and Maintenance
The following maintenance steps must be carried out:
• Check for tightness and for possible contamination on the air side.
• If there is a risk of frost, also check the safety devices regularly, or take appropriate
precautionary measures such as draining the equipment or adding antifreeze.
• Check that pipe connections and mountings are secure.
• Clean air side as necessary (blow through heat exchanger using compressed air or low
pressure water).
• Check that the steam inlet and condensate outlet are functioning correctly.
• Bleed.
• Check closed-loop control functions as necessary.
Commissioning of electric heater section
ELECTRICAL HAZARD AND DANGER FROM ROTATING UNIT PARTS!
In doing so, be sure to observe the safety information on page 24.
• The heater coil may only be switched on if the minimum volume of air required for
operation of the heater coil is flowing through it.
• Make sure that the fan runs on for at least 3 minutes once the heater coil has been
switched off.
Maintenance of electric heater section
ELECTRICAL HAZARD AND DANGER FROM ROTATING UNIT PARTS!
In doing so, be sure to observe the safety information on page 24.
• Dry clean on air side
Commissioning of direct (gas) fired heater section
Refer to the relevant documentation provided for information on commissioning.
Maintenance of direct (gas) fired heater section
Refer to the relevant documentation provided for information on maintenance.
