Japan, Kuken
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
| Product | CAV (Analog) | VAV (Analog) | CAV (DDC) | VAV (DDC) |
| Power supply | AC 24V (standard), AC 100V (option), 50/60Hz | |||
| Power consumption | 4VA / 1 actuator (not including DDC power consumption) | |||
| Operating temperature | 0 ~ 60°C (no condensation, no freezing) | |||
| Static pressure range | Standard: 20 ~ 800Pa<br>With silencer: 50 ~ 800Pa | |||
| Material | Standard: Hot dip galvanized steel sheet<br>Option: SUS, Galvarium sheet | |||
| Painting (option) | Vinyl chloride resin, Epoxy resin paint | |||
| Flow output signal | DC4 ~ 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 control | BY-PASS TANDEM OPE., PRIMARY-SECONDARY TANDEM OPE. | |||
| Full close/open command | CONTACT SIGNAL FROM OUTSIDE | COMMAND FROM DDC | ||
| Full close/open time | 102(50Hz) / 85(60Hz) SEC. FROM FULLY CLOSED TO FULLY OPEN | |||
| Full open signal | Option | Standard | ||
| Suitable opem signal | Option | Standard | ||
| Contact signal for operation | Option | |||
Dimension
Square
| Model | W (mm) | H (mm) | DIM. L (mm) |
| 202 | 200 | 200 | 450 |
| 302 | 300 | 200 | 450 |
| 403 | 400 | 300 | 450 |
| 404 | 400 | 400 | 450 |
| 504 | 500 | 400 | 450 |
| 704 | 700 | 400 | 450 |
| 1004 | 1000 | 400 | 450 |
| 1006 | 1000 | 600 | 500 |
| 1008 | 1000 | 800 | 500 |
| 1208 | 1200 | 800 | 500 |
| 1210 | 1200 | 1000 | 500 |
| 1212 | 1200 | 1200 | 500 |
| 1414 | 1400 | 1400 | 500 |
| 1614 | 1600 | 1400 | 500 |
| 1616 | 1600 | 1600 | 500 |
Round
| Model | DIM. D (DUCT SIZE) (mm) | DIM. L (mm) | DIM. X (mm) |
| 150 | 150 | 450 | 0 |
| 200 | 200 | 450 | 0 |
| 250 | 250 | 450 | 0 |
| 300 | 300 | 500 | 21 |
| 350 | 350 | 500 | 46 |
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