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2.5. Installation instructions
2.5.1.
Mounting the housing
2.5.2.
Electrical connection
09.97
• Place the unit in a horizontal position. Turn the screws on the front panel
approx. 180° anti-clockwise. Remove the cover by pulling it upward.
• Remove the accessory package. (screws, edging, hose connection, drilling
template)
• Place the drilling template on the outside of the switch cabinet surface to
which you wish to attach the unit. Drill the holes, and cut out the openings
required for air transfer.
Caution: Prevent chips from entering the switch cabinet.
• Place the sealing strip into the cut-outs. The strip doubles as edge
protection and seal between ambient and switch cabinet air. Always arrange
the sealing strip so that it abuts at the side. The switch cabinet's degree of
protection is only provided if the sealing strip is correctly seated.
• Affix the heat exchanger from the inside of the switch cabinet using the bolts
supplied in the accessory package.
• Connect the unit to water and electrical power supplies. Then reattach the
cover, ensuring that the ground cable is plugged onto the ground connector
in the cover!
Unimpeded circulation of the „ external" airflow circuit to the heat exchanger
must be assured at all times across the full cross-sectional area of ventilation.
It is important to ensure that the gasket seals are properly fitted on the intake
and return air apertures with the unit exerting pressure on them so that no air
can be drawn into the internal airflow circuit from the atmosphere.
The water drain outlet must be positioned with a downward slope out of the
unit. Use a hose of 12 mm inside diameter, ensuring it is free of kinks. Please
secure the hose using a hose clip.
Connect to the electrical power supply using the cable union located on the
left-hand underside of the unit. Thread the power supply cable past the heat
exchanger assembly through the insulating strip up to the terminals on the strut
across the fan and wire according to circuit diagram. Do not remove the
insulating strip when wiring!
Fuse in accordance with the unit's current consumption (refer to the technical
data on the ID plate).
CAUTION:
Both mains voltage and frequency must correspond to the ratings printed
on the heat exchanger's ID plate.
Work on electrical systems may only be carried out by qualified personnel,
who are to observe the applicable safety regulations.
Every unit is subjected to factory tests to ensure electrical safety in accordance
with EN 60335. According to the terms of UVV-VBG 4, §5 (4) (German
Accident Prevention Regulations), this releases the end-user from his
obligation to test the electrical system prior to initial operation.
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