Operating instructions

5.2. Minimum requirements for starting up
The start-up is carried out through a system calibration. “Vent-calibration“ (see also Page 20) is activated on the
controller > Service menu 2: 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
The unit must be must be disconnected from the power supply before any maintenance and installation
work or before opening the switch room! Danger of electric shock, moving parts (fan) and hot surfaces.
6.1 Removing/cleaning cross counter flow heat exchanger
DANGER OF INJURY! From falling or down-folding covers/inspection openings!
Maintenance and service work should always be carried out by two persons!
Heat exchanger are very heavy and can contain condensation water!
1. Undo screws (1) on unit cover, support cover in doing so and remove downwards (Fig. 13)
2. Loosen the fastening screw on the condensation tub (Fig. 14)
WARNING
CHAPTER 6
SERVICE AND
MAINTENANCE
fig.13 fig.14
(1)
WARNING
24
Central ventilation units KWL EC 700/1400/2000 D Pro / WW
Installation and operating instructions
KWL EC 2000 D Pro / WW
Recommended:
B
asic ventilation range
Nominal ventilation range
Intensiv ventilation range
p
f
a
Pa
V
·
m
3
/h
NOTE
UK