Flexit Nordic S4 - Functional Description of Balanced Ventilation; Fans; Filters; Rotor Heat Exchanger

7
NORDIC S4
2. Functional description of balanced ventilation
2.6. FOR USE WITH DAMPERS
2.6.1. Damper (DA1)
There is a closing air damper in the exhaust air duct to
prevent cold draughts.
2.6.2. Damper (DA2)
There is a closing air damper in the outdoor air duct to
prevent cold draughts.
If a water battery is used, the damper prevents frost
damage to the battery.
!
Adjustment must always be carried
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B1
M2
M1
EB1
F10
F20
M4
HR-R
FI2
FI1
B4
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DA1DA2
B3
B6
2.1. FANS (M1, M2)
The fans ensure that air enters and leaves the building.
They can be individually adjusted for optimal operation.
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control panel: Home, Away, High.
2.2. FILTERS (FI1, FI2)
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both supply air and extract air so that the air which
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2.3. ROTOR (HR-R)
The air passes through the rotary wheel-type heat
exchanger (recovery system). The rotor functions as
a heat magazine. The heat from the extract air heats
up one part of the rotor. When the heated part comes
over to the supply air side, the heat is transferred to
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2.4. HEATING ELEMENT (EB1)
If the energy recovered from the extract air is
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an electric heating element will help raise the
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overheating by the thermostat (F20) which cuts out
at high temperature. For extra safety, the thermostat
(F10) cuts out at critical temperatures.
Thermostat F10
needs to be reset manually by pressing the reset button.
6HHb
Reset button on page 17.
2.5. TEMPERATURE SENSORS (B1, B4)
As standard, the unit has four temperature sensors.
Supply air sensor (B1) registers the temperature after
the heating battery. The extract air sensor (B3) registers
the temperature of the extract air. The outdoor air
sensor (B4) registers the temperature of the outdoor
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