User`s manual

6
Warm-air heating and ventilation
units for low-energy residential
buildings and passive homes
DUPLEXVENT RB3-EC UNIT
Optional evaporator
for mechanical cooling
(version RB3-EC-CHF)
or water-based cooling
(version RB3-EC-CHW)
Exhaust air EC fan
Integrated double bypass damper with
servo drive (closes the heat recovery
exchanger when the bypass opens)
Counter-flow heat
recovery exchanger
with efficiency up to 90%
Low-speed
recirculating
EC fan
Light-current cable line
Expanded metal
mesh pre-filter i
1
Low-temperature
hot- water- air-heater
Connecting
terminal
board control
module
Expanded metal
mesh pre-filter e
1
Re-circulation and
supply air filter (G4,F7)
CP O8 RD CONTROLLER
Rotary controller
Operation
status
display
Integrated
temperature
sensor
Circular
connecting
ports (5)
Mixing and
shut-off
damper with
servo drive
under a cover
Figure -Basic DUPLEXVENT RB3-EC unit
Figure – Modified DUPLEXVENT RB3-EC-CHW
(with a water-based cooler)