Specifications

C7232A,B SENSOR AND CONTROLLER
63-2571—7 2
ORDERING INFORMATION
When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the
TRADELINE® Catalog or price sheets for complete ordering number.
If you have additional questions, need further information, or would like to comment on our products or services, please write or
phone:
1. Your local Honeywell Automation and Control Products Sales Office (check white pages of your phone directory).
2. Honeywell Customer Care
1885 Douglas Drive North
Minneapolis, Minnesota 55422-4386
In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Toronto, Ontario M1V 4Z9.
International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France,
Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.
SPECIFICATIONS
Models: C7232 Sensor and Controller. A stand-alone carbon
dioxide (CO
2
) sensor with two jumper-adjustable outputs
(one analog and one SPST relay).
C7232A: Wall mount model.
C7232B: Duct mount model.
NOTE: Models are available with or without a 4-digit LCD
that indicates the current CO
2
concentration.
Dimensions:
C7232A: See Fig. 1.
C7232B: See Fig. 2.
Sensor Performance Ratings:
Response Time: 2 min.
Carbon Dioxide Sensor:
Operation: Non-dispersive infrared (NDIR).
Sampling: Diffusion.
Range: 0 to 2000 ppm
Accuracy: ± (30 ppm +2% of reading)*.
* This product complies with Title 24 Part 6, CEC Standard
for Residential and Non-Residential Buildings— 2005,
when installed according to instructions.
Electrical Ratings:
Power Supply: 24 Vac ±20%, 50/60 Hz (Class 2).
Maximum Power Consumption: 3W.
Peak Current (at 20 ms): 600 mA.
Relay:
Configuration: Shipped N.O.
Contact Rating: 1A at 50 Vac/24 Vdc.
Minimum Permissible Load: 1 mA at 5 Vdc.
Linear Analog Output:
Voltage: 0/2-10 Vdc (resistive load greater than
5000 ohms).
Current: 0/4-20 mA (resistive load less than 500 ohms).
Outputs (Jumper Adjustable, see Table 2):
Analog: 0-10 Vdc (Default: 2-10 Vdc, 500 to 1500 ppm).
Relay: Normally Open SPST (Default: Close at 800 ppm).
Ambient Ratings:
Temperature:
Operating: +32°F to +122°F (0°C to +50°C).
Storage: -4°F to +158°F (-20°C to +70°C).
Relative Humidity (non-condensing): 0 to 95 percent.
CO
2
Pressure Dependence: 1.4% change in reading per
1 kPa deviation from 100 kPa.
Wiring Connections:
C7232A: 20-gauge cable with six 8 in. leadwires.
C7232B: 20-gauge cable with six 6 in. leadwires.
Mounting:
C7232A: Vertical surface with standard single-gang
junction box.
C7232B: Sheet metal duct with a sampling tube.
Automatic Background Calibration (ABC) default: On.
Calibration: This product is factory calibrated. No field cali-
bration is necessary for the life of this product.
Approvals:
CE
Underwriters Laboratories Inc. Listed, File No. E4436
cUL
C7232B: Flammability Rating, UL94-5V
C7232A: NEMA1
C7232B: NEMA3
Fig. 1. C7232A dimensions in inches (mm).
Fig. 2. C7232B dimensions in inches (mm).
M17540A
STANDARD
UTILITY
CONDUIT
BOX
(2X4)
MOUNTING
HOLES
KNOCKOUTS
FOR
EUROPEAN
APPLICATIONS
3-5/32 (80)
2-3/8 (60)
1
(25)
5-1/16
(128)
2-3/8
(60)
3-5/16 (84)
1-13/16
(46)
1-5/8
(41)
5-5/8
(142)
8 (203)
M17592
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