27
Central ventilation units KWL EC.. D Pro/WW
Installation and Operating Instructions
6.4 Condensation outlet in the unit
Ensure that the lateral condensation outlet (ø 22 mm) is secured above the base tray (see also section 2.2) for main-
tenance measures.
– Cleaning
1. Condensation outlet nozzles
2. Loosen fastening screws on condensation tub
3. Fold condensation tub downwards
4. Clean with a cloth
6.5 Terminal box with isolator/main switch
The terminal box that is connected to the side of the casing ensures free access to the electronic components
(e.g. batteries, fuses or DIP switch settings.
Furthermore, the isolator/main switch is operable from underneath the unit.
6.6 Accessories
WHSH HE 24V (0-10V)
Ref. no. 8318
Temperature control system for hot water heater battery
KWL-ÜS 700 D
Ref. no. 4206
Symmetrical adapter piece
KWL-ÜS 1400 D
Ref. no. 4207
Symmetrical adapter piece
KWL-ÜS 2000 D
Ref. no. 4208
Symmetrical adapter piece
KWL-EC CO
2
Ref. no. 9958
CO
2
sensor for detecting the concentration of
CO
2
in the room air
KWL-EC FF
Ref. no. 9953
Humidity sensor for detecting room air humidity
6.7 Error messages / alarms
The following warning and/or alarm indicators are shown on the controller display:
– “Safety temperature limiter“
– “Fire alarm“
A precise description of the error is indicated on the display!
m
If a value falls below the threshold value, the sensors will only display lines. This is not an error message in operation. The
current value will be displayed again as soon as the measured values increase.
Fig.27
Fig.28
Fig.29
Fig.30
EN
