Unit Insulation; Electrical Connection - Helios EC green Vent KWL EC 700 D Pro / WW Notice De Montage Et D'entretien

Installation and Operating Instructions
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ATTENTION
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ATTENTION
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WARNING
KWL EC 700 D Pro WW
KWL EC 1400/2000 D Pro WW
Central ventilation units KWL EC.. D Pro/WW
All fire and building regulations must be observed!
Manually adjustable shutters or iris shutters can be used exclusively to adjust sections with different air volumes. Auto-
matic volume flow controllers cannot be used, since these negatively affect the controlling of the ventilation unit and
the achievement of a stable operating point and therefore they prevent the proper functioning of the ventilation system.
2.5

Unit insulation

If installed in heated rooms and higher humidity, condensation can occur on the outside of the unit in the outside and
outgoing air area. In this case, water-vapour-tight insulation is to be installed on the surface in this area. Furthermore
the
outside and outgoing air ductwork should be insulated sufficiently.
If installed in unheated areas (e.g. frost-protected attic), sufficient insulation must be installed on the outside of the unit.
Otherwise, condensate formation could occur on the casing sides. Frost-proof condensate drainage must be installed,
perhaps with a heater.
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2.6

Electrical connection

All work must be carried out with the equipment fully isolated from the power supply. The electrical connec-
tions must be carried out in accordance with the relevant wiring diagram and must only be carried by certified
electricians. The electrical connection must be fully isolated until the final assembly!
The relevant standards, safety regulations (e.g. DIN VDE 0100) and the technical connection conditions of the local
electricity supply companies must be observed. An all-pole mains switch / isolator, with a contact opening of at least
3 mm (VDE 0700 T1 7.12.2 / EN 60335-1) must be provided. The main switch and/or isolator can be secured against
unauthorized switching with a U-lock.
If a residual current circuit breaker is installed in the supply line of the EC fan, the residual current circuit breaker must
have the following technical characteristics:
Type A or B with a rated differential current of 30 mA.
The EC fan has a leakage current of > 3.5 mA, calculated according to DIN EN 50178 Image 4.
ATTENTION:
1. The EC fan is exclusively designed for fixed connection, the connection via plug is not permitted.
2. The PE connection must be executed with 2 wires with min. 1.5 mm² or one 10 mm² wire.
If a residual current circuit breaker is installed in the supply line of the EC fan, the residual current circuit breaker must
have the following technical characteristics:
Type A or B with a rated differential current of 30 mA.
The EC fan has a leakage current of > 3.5 mA, calculated according to DIN EN 50178 Image 4.
ATTENTION:
1. The EC fan is exclusively designed for fixed connection, the connection via plug is not permitted.
2. The PE connection must be executed with 2 wires with min. 1.5 mm² or one 10 mm² wire.
The surface-mounted controller with touchscreen is connected to the unit by means of a 5 m connecting cable (also
available in 10 or 20 m length). The electrical connection of the KWL EC ... D Pro / WW takes place directly in the termi-
nal box. If special components are to be connected, the connections must be made in the terminal box.
Maximum of modbus connecting cable is 100 m.
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EN