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Kuken VAV/CAV

Made in Japan
Manufacturer: Kuken Industries Co., Ltd.
Product name: VAV/CAV

What is CAV (Constant Air Controller)?

CAV is designed to project air in specific volume not withstanding the room temperature.
CAVadjusts damper opening to secure the specified volume even when pressure inside the duct changes.
Normally inside duct:
➢ Highstatic pressure = Air Volume Increases
➢ Lowstatic pressure = Air Volume Decreases

What is VAV (Variable Air Controller)?

VAV is a device to keep air-volume constant no matter how pressure inside the duct changes.
VAV is designed to project required (nominal) amount of air by adjusting opening rate of damper blade even if the volume of air sent through duct increased/decreased.
➢ Send temperature room setting
➢ Control the Air-Cooling flowrate

Feature

  • Accurate wind volume control function (equipped with high-accuracy digital wind velocity sensor and control circuit).
  • Copes with severe room pressure control by diminishing lead-time required for opening/closing (fluctuation of air volume caused by operation lead-time is diminished).
  • Digital wind-velocity sensor: small sized, shape does not allow dust to adhere.
  • Simple structure minimizing numbers of mechanically movable parts (trouble caused by friction is minimized).
  • Allows Max. 20 units in tandem operation.
  • Low pressure loss and low noise.

Specification

ProductCAV (Analog)VAV (Analog)CAV (DDC)VAV (DDC)
Power supplyAC 24V (standard), AC 100V (option), 50/60Hz
Power consumption4VA / 1 actuator (not including DDC power consumption)
Operating temperature0 ~ 60°C (no condensation, no freezing)
Static pressure rangeStandard: 20 ~ 800Pa<br>With silencer: 50 ~ 800Pa
MaterialStandard: Hot dip galvanized steel sheet<br>Option: SUS, Galvarium sheet
Painting (option)Vinyl chloride resin, Epoxy resin paint
Flow output signalDC4 ~ 20mA (option)Pulse (voltage based), or DC voltage (0 ~ 5V)
REQ.Flow output signal
CONTACT SIGNAL FROM OUTSIDE
4 ~ 20mA (224Ω), 0 ~ 135Ω
COMMAND FROM DDC
0 ~ 10V (18.2kΩ)
Special option controlBY-PASS TANDEM OPE., PRIMARY-SECONDARY TANDEM OPE.
Full close/open commandCONTACT SIGNAL FROM OUTSIDECOMMAND FROM DDC
Full close/open time102(50Hz) / 85(60Hz) SEC. FROM FULLY CLOSED TO FULLY OPEN
Full open signalOptionStandard
Suitable opem signalOptionStandard
Contact signal for operationOption

Dimension

Square

ModelW (mm)H (mm)DIM. L (mm)
202200200450
302300200450
403400300450
404400400450
504500400450
704700400450
10041000400450
10061000600500
10081000800500
12081200800500
121012001000500
121212001200500
141414001400500
161416001400500
161616001600500

Round

ModelDIM. D (DUCT SIZE) (mm)DIM. L (mm)DIM. X (mm)
1501504500
2002004500
2502504500
30030050021
35035050046

VAV/CAV

 

 

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