Model CD-25R-CO2

Low Leakage CO2 Control Damper
Single Round Blade

CD-25R-CO₂ low leakage control damper employs a sturdy round frame and a single round blade for automatic air control. A modulating Belimo actuator controlled by a CO₂ sensor sends open or close signals according to fresh air needs.

Standard Construction

Frame: 12" x 20 ga. (305 x 1.0) galvanized steel.

Blades: 14 ga. (2.0) equivalent galvanized steel - round.

Axles: 1/2" (13) diameter plated steel.

Bearings: Synthetic.

Seals: Polyethylene blade edge seals.

Control Shaft: 1/2" x 5" (13 x 127) round drive axle.

Sensor: CO₂ Room Sensor

Damper Actuator: Modulating, 24V proportional.

Transformer: 120V to 24V. Supplied Loose.

Minimum Size: 6" Ø (152 Ø)

Maximum Size: 24" Ø (610 Ø)

Ratings

Maximum Leakage:
5.5 cfm/ft² @ 10 in. wg. (0.028 m³/s/m² @ 2.5 kPa)
5.0 cfm/ft² @ 8 in. wg. (0.026 m³/s/m² @ 2.0 kPa)
3.3 cfm/ft² @ 4 in. wg. (0.017 m³/s/m² @ 1.0 kPa)
1.5 cfm/ft² @ 1 in. wg. (0.008 m³/s/m² @ 0.25 kPa)