Honeywell 1102 - Manual
The Honeywell C7355A Room IAQ Monitor is a device designed for indoor air quality measurement, covering key operational aspects like setup, sensor readings (PM2.5, PM10, CO₂, TVOC), and wired communication via Modbus RTU. Its manual highlights technical specifications such as detection parameters, environmental conditions, physical dimensions, and detailed register configurations for real-time monitoring of air pollutants, including calibration and scaling adjustments through DIP switches or Modbus protocols. The guide emphasizes its role in assessing pollution levels and configuring system responses to ensure accurate indoor air quality tracking.
Table of Contents:
- Page 1 – Initial Setup and Communication Configuration
- Page 2 – Technical Specifications and Modbus Register Configuration
- Page 3 – Modbus Register Table for Air Quality Measurements
- Page 4 – Detailed Modbus Register Map and Scaling
- Page 5 – Sensor Data Register Map
QUICK START GUIDE
31-00437-03
C7355A Room IAQ Monitor
ABOUT
IAQ Monitor is an advanced, configurable, RS-485
connected device for commercial buildings. It monitors
CO
2
, PM2.5/PM10, TVOC, temperature and humidity. This
device provides a Modbus RTU (RS-485) interface, easily
integrating with the building automation system.
INITIAL SETUP
The device will power on after voltage is connected.
NOTE:
Upon first use (or re-use after a long time
shelving) device should be powered continuously
for more than 48 hours to ensure stable output of
all measured values.
LIGHT RING INDICATOR
There is a circle ring indicator lighting the center of the
housing. This light is used to show the measured air
quality.
Fig. 1. Three-color indicator lights.
This light indicates the one minute average value of
PM2.5, and changes color depending on concentration.
The indicator light behavior can be configured according
to DIP switches:
Fig. 2.
Table 1. DIP Switch Settings.
When the three-color option is selected, indicator color
corresponds to the following measured ranges:
—
Green
<35
μ
g/m
3
—
Yellow
35—75
μ
g/m
3
—
Red
>75
μ
g/m
3
Communication Settings
Wired communication (Modbus RTU) is available for the
device. The wiring terminals are shown below. For detailed
wiring and installation, please refer to the User Guide.
Fig. 3.
Indicator Setting
DIP4 DIP3 DIP2 DIP1
Light OFF
OFF
OFF
OFF
OFF
Three-color
OFF
ON
ON
ON
Default
Green Normally ON
ON
OFF
OFF
OFF
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About this manual
- Brand
- Honeywell
- Model
- 1102
- Document type
- Manual
- Language(s)
- English
- Pages
- 5
- File size
- 212.8 KB
- Format
Other Manuals for Honeywell 1102
Summary
Guide for initial setup, configuring the three-color light ring indicator based on air quality, setting DIP switches, and configuring wired communication settings using Modbus RTU.
Details technical specifications, detection parameters (PM2.5, PM10, CO2, TVOC, temperature, humidity), operating conditions, physical dimensions, and weight, along with the Modbus register table structure.
Table detailing starting register addresses, data descriptions, functions, formats, ranges, and default values for air quality measurements including TVOC, PM2.5, PM10, CO2, and pollution index levels.
