Airflow DUPLEXVENT RA3 User Manual page 19

DUPLEXVENT RB3
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c ..... an inlet of recirculation air from living spaces to the unit
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c ..... n outlet of heating, cooling and fresh air from the unit a
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to living spaces
Balanced pressure ventilation mode
all year round
-1
n = 0,15 – 0,5 /h /
v
Balanced pressure ventilation with adjustable ventilation
3
capacity 75 to 450 m /h, with heat recovery or via a
bypass. It is designed for ventilation and additional
heating (without recirculation) in the transitional period.
Both fans are running, the mixing damper is shut down.
Recirculation heating and ventilation mode
heating season
-1
n = 0,15 – 0,5 /h /
v
Hot air recirculation heating and balanced pressure
ventilation with the recovery of exhaust heat, with
recirculation capacity up to 500 m /h (at 150 Pa) and
ventilation capacity up to 450 m /h.
Both fans are running, the mixing damper is mixing
outside and recirculation air.
Recirculation heating mode with intermittent ventilation
heating season
n = 0
v
The basic recommended operation mode of recirculation heating.
When people are present, the extraction fan with adjustable run
down time is switched on and off by an impulse from the toilet
and bathroom, or an impulse from the kitchen to mode 1 without
run down time. Ventilation can also be started periodically at set
interval, always with heat recovery. This mode is also used for
heating via an air-conditioning unit during the transitional period
when mechanical cooling is provided.
Overpressure ventilation mode
summertime
-1
n = 0,5 – 2,0 /h /
v
Intensive summertime ventilation of living spaces by a full
supply of outside air or through a ground heat
exchanger. This mode can also be used for cooling at
night. Air is taken out via partially open windows. The
exhaust air fan is started by an impulse, the mixing
damper is in position "2", the bypass damper is open.
Recirculation cooling mode with a ground heat
exchanger (GHE-c, GHE-s)
summertime
-1
n = 0 /h /
v
Intensive summertime circulation cooling of living
spaces by indoor air recirculating through a ground
heat exchanger. The exhaust air fan is started by
an impulse, the mixing damper is in position "2",
and the bypass damper is open. It can only be used
in conjunction with a ground air heat exchanger or
using antifreeze fluid.
Recirculation mechanical cooling mode
summertime
-1
n = 0 /h /
v
Intensive recirculation cooling of living spaces in conjunction
with an outdoor condensation unit ("mechanical cooling").
When people are present, the ventilation fan with adjustable
run down time is switched on and off by an impulse from the
toilet and bathroom, or an impulse from the kitchen to mode
1 without run down time. In this case cooling is disabled.
Ventilation can also be started periodically at set intervals.
-1
n = 0 /h /
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n = 0,5 – 1,5 /h /
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n = 0 /h /
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n = 0,5 – 1,5 /h /
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-1
n = 0,5 – 1,5 /h /
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e ..... a fresh outside air inlet
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i ..... an inlet of exhaust air from sanitary facilities to the unit
1
i ..... an outlet of exhaust air from the unit
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utility toilet hall living space
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utility hall living space
toilet
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utility toilet hall living space
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utility toilet hall living space
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utility toilet hall living space
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utility toilet hall living space
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