DataSheet TUNE R for AHU201710

2 / 4 | Air Volume Control
Description
The TUNE-R, circular single-blade dampers are mainly intended as a part of air handling units and fan systems to
cover the air ow tuning and tight shut-off functionalities. The dampers can be used in indoor and outdoor climate
conditions installed on the body of TUNE-R or fan or in the circular duct. They are equipped by electric actuator with
spring return to closed position in case of electric power interruption. Manual operation/adjustment is also possible.
They can operate in both directions of air ow. The air tightness of the dampers is classied as C4 according to the
standard EN 1751 in pressure range up to 1000 Pa which is the maximum recommended duct pressure for this
product. The operation temperature range is -20°C ... 100°C in duct, 50°C on actuator.
Design
TUNE-R dampers are constructed from galvanized steel sheet. The blade is equipped by rubber gasket eliminating
leakage in closed position. The blade shaft is sitting in self - lubricating polymeric bearings.
The connection of to the ductwork is sealed by rubber gaskets contributing to the casing tightness.
Controls/Wiring
Power supply: AC 24 V/50 - 60 Hz or DC 24 V
Power consumption: 5 W (DC), 6 VA (AC)
Mechanical protection: IP 54
q (m
3
/h)
CLOSE
OPEN
a b
21
a
b
-
⊥
~ AC 24 V
+ DC 24 V