Important; Minimum Requirements For Commissioning; Service And Maintenance; Cross Counter Flow Heat Exchanger - Helios KWL EC 700 D Pro Notice De Montage Et D'entretien

Installation and Operating Instructions
EN
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IMPORTANT

CHAPTER 6
SERVICE AND
MAINTENANCE
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WARNING
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WARNING
Central Ventilation Units KWL EC.. D Pro/WW
Dp
fa
Pa

5.2. Minimum requirements for commissioning

The commissioning is carried out through a system calibration. In this respect, "Fan-calibration" (see also Page 20) is
activated on the controller > Service menu 04: and the system starts the system characteristic curve.
The calibration takes around 3-5 minutes!
In case of unusual system pressures, the installation must be checked! Foreign bodies or incorrect installation
can be potentially responsible for this.
6.0

Service and maintenance

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The unit must be fully isolated from the mains power supply before any maintenance and installation work
or opening the terminal compartment! Risk of electric shock, moving parts (fan) and hot surfaces.
6.1 Remove/clean cross-counterflow heat exchanger
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RISK OF INJURY! From falling or down-folding covers/inspection openings!
Maintenance and service work should always be carried out by two persons!
Heat exchangers are very heavy and can contain condensation water!
1. Loosen screws (1) in the unit cover, support cover when doing so and remove cover downwards (Fig. 13)
2. Loosen fixing screws on condensation tray (Fig. 14)
(1)
KWL EC 2000 D Pro / WW
V · m
/h
3
Fig.13
22
Fig.14