Functions - Helios KWL EC 300 MB Eco R Notice De Montage Et D'utilisation

Models: KWL EC 300 MB Eco R / KWL EC 300 MB Eco L
KWL EC 300 MB Eco removes contaminated air and replaces it with fresh filtered and heated
outdoor air.
Efficient filtering of outdoor air (G4 + F7) prevents harmful particles from entering the duct­
work and rooms via the unit. Good filtering of extract air (G4) diminishes the contamination
of the unit and ensures proper operation of heat recovery and the extract air fans.
With an effective counter-current heat exchanger, most of the heat of contaminated extract
air can be transmitted to outdoor air coming inside. The efficiency of KWL EC 300 MB Eco
depends on the temperature of extract and outdoor air, the humidity content of extract and
outdoor air and the air flow volume of extract and supply air. The adjacent examples show
the efficiency of supply air in KWL EC 300 MB Eco in two different sets of circumstances.
The unit has a motor operated heat recovery bypass function, which eliminates needless
heating of outdoor air during summer. The automatic defrosting of the heat recovery cells
intermittently stops the supply air fan when the temperature of exhaust air goes under the
set threshold value.
The unit KWL EC 300 MB Eco has an 4-level operation switch and therefore four speed
steps.
Selection of fan speed (4-level operation switch)
The 4-level operation switch has following functions:
• Performance regulation of the fans about four speed steps
To switch off the unit KWL EC 300 MB Eco completly, connect a power switch by customers.
Clock timer WSUP (peripheral equipment)
NOTE: Attend seperate Installation- and Operating Instruction! (WSUP/No 91584.001)
Digital clock timter with LCD and factory-set time. Programmabe for all days of the week.
The clock timer is adapted for surface and flush mounting in dry rooms.
The weekly programm pilot the lower mode.
Control mode: On = normal mode
Off = lower mode
6

FUNCTIONS

Case 1.
Extract air flow 162 m
Supply air flow 162 m
Extract air temperature
Outdoor air temperature
Humidity of extract air
Humidity of outdoor air
Efficiensy of heat recovery
Case 2.
Extract air flow 235 m
Supply air flow 235 m
Extract air temperature
Outdoor air temperature
Humidity of extract air
Humidity of outdoor air
Efficiensy of heat recovery
/h
3
/h
3
°
21 C
°
-3 C
35%
90%
82%
3 /h
3 /h
°
21 C
°
10 C
57%
90%
89%