Honeywell C7232A User Manual

PRODUCT DATA
63-2571-12
C7232A,B Sensor and Controller
CARBON DIOXIDE SENSOR
APPLICATION
The C7232 Sensor and Controller is a stand-alone carbon
dioxide (CO
2
) sensor for use in determining ventilation
necessity with HVAC controllers. The C7232 measures the
CO
2
concentration in the ventilated space or duct. The C7232
is used in ventilation and air conditioning systems to control
the amount of fresh outdoor air supplied to maintain
acceptable levels of CO
2
in the space.
FEATURES
• Used for CO
2
based ventilation control.
• Models available with LCD that provides sensor
readings and status information.
• Non-Dispersion-Infrared (NDIR) technology used to
measure carbon dioxide gas.
• Device provides voltage or current output based on
CO
2
levels.
• Models available with SPST relay output.
• Automatic Background Calibration (ABC) algorithm
based on long-term evaluation reduces required
typical zero-drift check maintenance.
C7232A
C7232B
Contents
Application ........................................................................ 1
Features ........................................................................... 1
Specifications ................................................................... 2
Ordering Information ........................................................ 2
Installation ........................................................................ 3
Wiring ............................................................................... 4
Checkout .......................................................................... 5
Appendix .......................................................................... 6

Honeywell C7232A Specifications

General

Brand	Honeywell
Model	C7232A
Category	Accessories
Language	English

Summary

C7232A,B Sensor and Controller Overview

Product Features

Key functionalities and technologies of the C7232A,B sensor.

Product Application

Use cases for the C7232A,B sensor in ventilation systems.

Specifications

Model and Performance Details

Details on C7232A/B variants, size, sensor ratings, and accuracy.

Electrical and Output Ratings

Power supply, consumption, relay, and analog output configurations.

Ambient, Wiring, and Mounting Specs

Environmental limits, connection details, and mounting methods.

Calibration and Certifications

Factory calibration, ABC default, and product approvals.

Installation Guide

General Installation Precautions

Important safety and procedural notes for installation.

C7232A Cover Handling

Steps for removing and replacing the C7232A cover.

Location and Mounting Considerations

Guidelines for optimal sensor placement and mounting.

Wiring and Duct Installation

Wiring Connections

Detailed wire color to terminal designation mapping.

Duct Mounting Procedures

Procedures for mounting the C7232B in a duct.

Configuration and Checkout

Input and Output Signal Configuration

How to set jumpers for CO2 ranges and output signals.

Unit Checkout Procedure

Steps to verify sensor operation after installation.

Appendix

Pre 0309 Jumper Settings

Jumper configurations for older models prior to date code 0309.