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Commissioning and Maintenance
Maintenance of heater section (LPHW)
ELECTRICAL HAZARD, DANGER FROM ROTATING UNIT PARTS AND
SHARP EDGES! OBSERVE PERSONAL PROTECTION MEASURES.
In doing so, be sure to observe the safety information on page 24 and page 25.
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).
• Bleed.
Commissioning of heater section (steam)
ELECTRICAL HAZARD, DANGER FROM ROTATING UNIT PARTS AND
SHARP EDGES! OBSERVE PERSONAL PROTECTION MEASURES.
In doing so, be sure to observe the safety information on page 24 and page 25.
DANGER OF SCALDING!
Hot steam will escape if the air vents are opened!
There is a danger of scalding. Open air vents carefully.
Always take suitable precautions before carrying out work.
The following commissioning steps must be carried out:
• Open drain valves and air vents.
• Open steam valves slightly then wait until steam emerges from the drain valves and air
vents.
• Close drain valves and air vents.
Maintenance of heater section (steam)
ELECTRICAL HAZARD, DANGER FROM ROTATING UNIT PARTS AND
SHARP EDGES! OBSERVE PERSONAL PROTECTION MEASURES.
In doing so, be sure to observe the safety information on page 24 and page 25.
DANGER OF SCALDING!
Hot steam will escape if the air vents are opened!
There is a danger of scalding. Open air vents carefully. Always take suitable
precautions before carrying out work.
