Honeywell C7632A, C7632B Product Data

63-2615-07

C7632A,B

C7632A

C7632B

Sensor and Controller

CARBON DIOXIDE SENSOR

SPECIFICATIONS

Models: C7632 Sensor and Controller. A stand-alone car-

bon dioxide (CO

put. C7632A: Wall mount model. C7632B: Duct mount model.

Dimensions:

C7632A: See Fig. 1. C7632B: See Fig. 2.

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.

PRODUCT DATA

) sensor with one 0-10 Vdc analog out-

APPLICATION

The C7632 Sensor and Controller is a stand-alone carbon dioxide (CO necessity with heating ventilation and air conditioning (HVAC) controllers. The C7632 measures the CO concentration in the ventilated space or duct. The C7632 is used in HVAC systems to control the amount of fresh outdoor air supplied to maintain acceptable levels of CO the space.

) sensor for use in determining ventilation

FEATURES

• Non-Dispersion-Infrared (NDIR) technology used to measure carbon dioxide gas.

• Special plated sensor provides long-term calibration stability.

• Device provides voltage output based on CO

• Used for CO

• Automatic Background Calibration (ABC) algorithm based on long-term evaluation reduces required typical zero-drift check maintenance.

• Fixed 0 to 10 Vdc from 0 to 2000 ppm. No adjustments are necessary.

• Compatible with Honeywell Excel 10, 15, 5000, and any controller requiring 0-10 Vdc input.

based ventilation control.

levels.

Automatic Background Calibration (ABC) default: On.

Electrical Ratings:

Power Supply: 24 Vac ±20%, 50/60 Hz (Class 2). Maximum Power Consumption:

Average: 1W.

Peak: 2W. Peak Current (at 20 ms): 300 mA. Linear Analog Output: 0-10 Vdc.

Mounting:

C7632A: Vertical surface with standard single-gang junction

box. C7632B: Sheet metal duct with a sampling tube.

Pressure Dependence: 1.6% change in reading per

1 kPa deviation from 100 kPa.

Output: Analog: 0-10 Vdc, 0-2000 ppm (fixed).

Sensor Performance Ratings:

Response Time: 1 min. Carbon Dioxide Sensor:

Operation: Non-dispersive infrared (NDIR).

Sampling: Diffusion.

Range: 0 to 2000 ppm (fixed).

Annual Drift: ±10 ppm (nominal).

Accuracy: ±(30 ppm+2%) at normal temperature/pres-

sure. Calibrated at the factory. Uses automatic background calibration. No calibration

required for the life of the product. Meets CEC Title 24 requirement of ±75ppm accuracy at

600ppm and 1000ppm ambient levels. For proper CO2 operation, install only in spaces that see

at least 4 hours of continuous unoccupied time per

week.

C7632A,B SENSOR AND CONTROLLER

CAUTION

2-11/16 (68)

1-1/16

(27)3-7/8 (99)

M19794

3-3/8

(86) 4-1/8 (104)

3-5/16 (84)

1-13/16

(46)

1-5/8

(41)

5-5/8 (142)

8 (203)

M19795

Wiring Connections:

C7632A: Terminal block. C7632B: 20-gauge cable with three 6 in. leadwires.

Approvals:

CE. C7632B: Flammability Rating, UL94-5V. C7632A: NEMA1. C7632B: NEMA3.

Fig. 1. C7632A dimensions in in. (mm).

IMPORTANT

All wiring must agree with applicable codes, ordinances and regulations.

Health Hazard. Improper use can create dangerous situations.

Use in application for sensing carbon dioxide only. For life-safety applications, this device can function only as a secondary or lesser device.

Electrical Shock or Equipment Damage Hazard. Can shock individuals or short equipment circuitry.

Disconnect power supply before installation.

Equipment Damage Hazard. Electrostatic discharge can short equipment circuitry.

Ensure that you are properly grounded before handling the unit.

C7632A Cover Removal/ Replacement

The cover of the C7632A is fixed by a latch on the underside of the unit.

C7632A Cover Removal (see Fig. 3)

Fig. 2. C7632B dimensions in in. (mm).

INSTALLATION

When Installing this Product...

1. Read these instructions carefully. Failure to follow

them could damage the product or cause a hazardous condition.

2. Check the ratings given in the instructions and on the product to make sure the product is suitable for your application.

3. Installer must be a trained, experienced service technician.

4. After installation is complete, check out product operation as provided in these instructions.

1. Unless the device is mounted, hold the base using the wiring hole and/or the perforated vent.

2. Depress the tab on the underside of the device.

3. Swing the cover away from the base.

4. Lift cover from base.

C7632A Cover Replacement

1. Place top cover tab over the ridge along the base top.

2. Swing the cover down.

3. Press the lower edge of the case to latch.

Location and Mounting

C7632 Sensors mount directly on the wall, sheet metal duct, or a panel. When planning the installation, allow enough clearance for maintenance and service. Mount the sensor in a well-ventilated area.

NOTES: Do not install the sensor where it can be affected

by: — drafts or dead spots behind doors and in corners. — air from ducts.

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 Environmental and Combustion Controls Sales Office (check white pages of your phone direc-

2. Honeywell Customer Care

3. http://customer.honeywell.com or http://customer.honeywell.ca

International Sales and Service Offices in all principal cities of the world. Manufacturing in Belgium, Canada, China, Czech Republic, Germany, Hungary, Italy, Mexico, Netherlands, United Kingdom, and United States.

63-2615—07 2

tory).

1885 Douglas Drive North Minneapolis, Minnesota 55422-4386

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