® U.S. Registered Trademark
EN0B-0341CH33 R0803A
Copyright © 2008 Honeywell Inc. • All rights reserved
CN20, CN34 SERIES
NON-SPRING RETURN DIRECT-COUPLED DAMPER ACTUATORS
FOR MODULATING AND FLOATING / 2-POSITION CONTROL
PRODUCT DATA
GENERAL
These direct-coupled damper actuators provide modulating
control for:
•
air
dampers,
•
VAV
units,
•
air handling units,
•
ventilation
flaps,
•
louvers,
and
•
reliable control for air damper applications with up to
4.6 m
2
/ 50 sq.ft. (20 Nm / 177 lb-in) or 7.8 m
2
/ 85 sq. ft.
(34 Nm / 300 lb-in) (seal-less dampers; air friction-
dependent).
FEATURES
•
Self-centering shaft adapter
•
Access cover to facilitate connectivity
•
Service/off for safe & easy servicing
•
Rotation direction selectable by switch
•
Declutch for manual adjustment
•
Mechanical end limits
•
Field-installable auxiliary switches
•
Mountable in any orientation (no IP54 if upside down)
•
Mechanical position indicator
•
CE and UL certified
SPECIFICATIONS
Supply voltage
24 Vac/dc
±
15%, 50/60 Hz;
Nominal voltage
24 Vac/dc, 50/60 Hz;
All values stated hereinafter apply to operation under
nominal voltage conditions.
Power consumption
CN7220A2007
6 VA / 3 W
CN7234A2008
6 VA / 3 W
Ambient limits
Ambient operating limits
-20...+60
°
C (-5...+140 °F)
Ambient storage limits
-40...+80
°
C (-40...+175 °F)
Relative humidity
5...95%, non-condensing
Safety
Protection standard
IP54 as per EN 60529
Protection class
II as per EN 60730-1
Overvoltage category
II
Lifetime
Full strokes
60000
Repositions 1.5
million
Mounting
Round damper shaft
10...27 mm (3/8...1-1/16")
Square damper shaft
10...18 mm (3/8...11/16");
45°
steps
Shaft length
min. 22 mm (7/8")
Control signal
0(2)...10
Vdc
0(4)...20
mA
Input impedance
>100 k
Ω
[0...10 V]
500
Ω
[0...20 mA]
Feedback signal
Limits
±
1 mA at 0...10 V
End switches (when included)
Rating
5 A (resistive) / 3 A (inductive)
Triggering points
5
°
/ 85
°
Torque rating
CN7220A2007
20 Nm (177 lb-in)
CN7234A2008
34 Nm (300 lb-in)
Runtime
95 sec (60 Hz) / 110 sec (50 Hz
or DC supply)
Rotation stroke
95
°
±
3
°
Dimensions
see "Dimensions" on page 8
Weight (without cables)
1.35 kg (3 lbs.)
Noise rating
40 dB(A) max. at 1 m
Certification
CE & UL
