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WIKA A2G-65 User Manual

Page 9

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WIKA operating instructions air2guide model A2G-65

9

GB

40338355.02 05/2012 GB/D/F/E/I

5. Transport, packaging and storage

5.1 Transport

Check the frost protection thermostat for any damage that may have

been caused during transportation. Obvious damage must be reported

immediately.

5.2 Packaging

Do not remove packaging until just before mounting.

Keep the packaging as it will provide optimum protection during trans-

port (e.g. change in installation site, sending for repair).

5.3 Storage
Permissible conditions at the place of storage:

Storage temperature: -30 ... +70 °C

Protect frost protection thermostat from moisture and dust.

6. Commissioning, operation

Installation and mechanical connection
The ambient temperature at the frost protection thermostat housing

(with the test loop) must be at least 2 °C above the selected set point.

If this cannot be guaranteed (e.g. outdoors or in exposed areas), the

housing and test loop must be installed inside the air handling unit.

The capillary tube must be mounted on the downstream side of the

heating coil (and on the upstream side in the case of cooling coils).

It should be looped diagonally across the heat exchanger pipes at a

distance of approx. 5 cm and should cover the entire area evenly. For

test purposes, it is recommended to have a loop of approx. 60 cm

directly beneath the housing outside the entry to the duct. To prevent

damage to the capillary tube, a minimum bending radius of 20 mm

must be ensured. Mounting can be made easier by using capillary tube

clamps (optional accessories).

5. Transport, packaging ... / 6. Commissioning, operation