11
AW Ex22, AW Ex42
Cleaning/maintenance
1. Disconnect the power to the fan motor and follow any applicable regulations concerning work in explosive gas environments.
2. The fan heater has a quick release inspection/cleaning plate and a lock nut and lock washer (arrow) for equipotential bonding,
see photo 13.
Photo
13
Photo
14
3. Disengage the quick release locks by turning them a quarter turn counter-clockwise, see photo 14.
Cleaning and maintenance of the fan motor
Must be carried out according to the separate instructions for the fan motor.
Cleaning of the water coil
For optimum performance, the fan heater must be cleaned regularly.
The interval between each cleaning depends on the environment the fan heater is used in.
Dust on the water battery’s aluminium fins impedes the airflow and its heat exchanging performance.
The coil must therefore be kept clean.
Important!
Do not forget to reinstall the lock washer and lock nut for equipotential bonding in the plate,
following the completed maintenance procedure.
Summary of Contents for AW Ex22
Page 18: ...18 AW Ex22 AW Ex42 1 1 2 2 Loctite 2400 1 2 3 3 4 3 4 4 3 1 4 5 180 5...
Page 19: ...19 AW Ex22 AW Ex42 AW Ex 1 125 C 2 A 3 4 5 6 6 22 AW Ex22 28 AW Ex42 A 7 150 C 6 7 7 7 B A...
Page 21: ...21 AW Ex22 AW Ex42 1 2 13 13 14 3 14...
Page 28: ...28 AW Ex22 AW Ex42...
Page 29: ...29 AW Ex22 AW Ex42...
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