9
Compact wall-mounted units KWL EC 170 W / W ET
Installation and Operating Instructions
EN
EN
TIP!
2 .8 Functional layout
2 .9 Initial commissioning and adjustment
Useful hint for adjustment!
The adjustment by means of pressure measurement is explained in the Helios practical workshops, and this is the
easiest way to adjust a KWL EC 170 W / W ET. In this respect, a pressure measuring connector must be mounted to
each connecting socket/ventilation pipe (approx. 20 cm past the unit connection), and the pressure hoses must be
readily accessible.
To balance the whole system, supply and extract openings should be provided with adjustable elements or valves
(accessories). During extraction of polluted extract air, a filter (accessories) is to be connected. The installation of kit-
chen hoods to the system (cause: dirt, fire danger, hygiene) is not permitted. To ensure air circulation within the room
sufficient overflow openings (door gap, door grilles) are to be planned.
All fire protection regulations must be observed!
Detailed information on the adjustment of KWL wall-mounted units can be found in the Installation and
Operating Instructions “KWL easyControls Initial Commissioning”; No . 82 237!
Fig .16
2
1
2
4
1
External sensor
(room-side installation)
•
CO2 sensor
•
Humidity/temperature sensor
•
VOC sensor
Exhaust air
Supply air
Extract air
Outside air
When using a heater battery, the duct system must be fitted with temperature-resistant or non-
combustible ducting 0.5 m before and after the heater battery (e.g. spiral duct)
Fig. KWL EC 170 W
3
Pos.
Name
External
sensor
Humidity/temperature sensor: KWL-FTF (Accessories)
VOC sensor: KWL-VOC (Accessories)
1
Temperature-resistant or non-combustible ducting (e.g. spiral duct)
2
Iso-Pipe pipe
125
3
Connector with seal for unit connection to duct system: RVBD 125 K
Electrical auxiliary heater type: EHR-R 1,2/125 (accessories)
Note: A KWL-LTK is included in scope of delivery for the Beim EM module
Alternative:
Hot water auxiliary heater type: WHR 125 (Accessories) with hydraulic unit
4
NOTE
m
ATTENTION
m
