GREYSTONE IAQ Series Indoor Air Quality Detector Instruction Manual

: June 12, 2024
: Greystone

Table of Contents

GREYSTONE IAQ Series Indoor Air Quality Detector
Product Information
Product Usage Instructions
INTRODUCTION
MOUNTING
NETWORK CONFIGURATION
NETWORK SETUP GUIDE
DISPLAY
SERVICING
DIMENSIONS
SPECIFICATIONS
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

GREYSTONE IAQ Series Indoor Air Quality Detector

Product Information

The IAQ Series is an indoor air quality detector designed to monitor and control the air quality in indoor environments. It provides accurate readings of various parameters such as temperature, humidity, volatile organic compounds (VOC), carbon dioxide (CO2), formaldehyde (CH2O), and particulate matter (PM2.5).

Key Features:

Monitors temperature, humidity, VOC, CO2, CH2O, and PM2.5
Provides stable and accurate sensor readings
Includes a backplate with mounting holes for easy installation
LCD display for convenient monitoring
Supports network configuration for integration into larger systems

Product Usage Instructions

Before starting the installation, carefully read the installation instructions provided in the manual. Failure to follow these instructions may result in product damage.
Ensure that the IAQ detector is not used in explosive or hazardous environments, with combustible or flammable gases, as safety or emergency stop devices, or any other application that could result in personal injury.
Take electrostatic discharge precautions during installation and make sure not to exceed the device ratings.
The sensor should be mounted 1.5 meters (5 feet) from the floor of the area to be controlled. Avoid mounting the sensor near doors, opening windows, supplying air diffusers, or other known disturbances. Also, avoid areas where the detector is exposed to vibrations or rapid temperature changes.
Feed the control wire through the center hole of the backplate and mount the backplate to an electrical box using two screws (not supplied).
Install the sensor module/cover by placing the tabs on the top of the backplate into slots in the sensor module/cover and snapping it onto the tabs on the bottom of the backplate. It is recommended to install the sensor module with power applied, but it can also be installed without power.
If power is present, the LCD will illuminate after about 10 seconds, and the sensor readings will be displayed. Allow 24 hours for the sensors to stabilize to obtain accurate readings.
The LCD backlight is set to ON by default. To turn it OFF, refer to the Network Setup Guide. When the LCD backlight is OFF, touching the LCD will turn it on for 2 minutes.
For devices with a concealed LCD, the LCD backlight is set to OFF by default.
To configure network settings, select the menu icon on the top left of the display and follow the instructions provided in the Network Setup Guide.
After the initial setup, you can lock the touchscreen during network setup to prevent unauthorized access. Refer to the Network Setup Guide for instructions.
If necessary, set the EOL network termination jumper by moving it to the ON position. The jumper is located under the cover of the device.

INTRODUCTION

The Total Indoor Air Quality Monitor will monitor up to 6 parameters that include Particulate Matter (PM1, PM2.5, PM4 & PM10), Volatile Organic Compounds, Carbon Dioxide, Formaldehyde, Humidity & Temperature and provide either a BACnet® or Modbus signal for connection to a building automation system. The IAQ features a full-colour capacitive touch screen LCD that’s user configurable, a configurable alarm relay output and field replaceable sensor modules. All this housed in a new modern, quick mount enclosure.

WARNING

Read these installation instructions carefully before commissioning the IAQ. Failure to follow these instructions may result in product damage. Do not use in an explosive or hazardous environment, with combustible or flammable gases, as safety or emergency stop devices or in any other application where failure of the product could result in personal injury. Use electrostatic discharge precautions during installation and do not exceed the device ratings.

MOUNTING

Included are the backplate and sensor module/cover. Do not separate the sensor module and cover.
The backplate includes mounting holes for several mounting boxes The backplate includes mounting holes for several mounting box types.
The sensor should be mounted 1.5 m (5′) from the floor of the area to be controlled. Do not mount the sensor near doors, opening windows, supply air diffusers or other known disturbances. Avoid areas where the detector is exposed to vibrations or rapid temperature changes.
Feed control wire through the center hole and mount the backplate to an electrical box with 2 screws (not supplied).
The backplate contains the wiring terminals and terminal designations.
Typical Network Wiring
NOTE: The sensor module can be installed with power applied, but it is not recommended. To Install sensor module/cover by placing the tabs on the top of backplate into slots in the sensor module/cover and snap onto tabs on bottom of backplate
If power is present the LCD will illuminate and after about 10 seconds, the sensor readings will be displayed. Allow 24 hours for sensors to stabilize for accurate readings.

LCD BACKLIGHT

The LCD Backlight default is ON. To turn OFF refer to the Network Setup Guide. In the OFF setting, the LCD backlight remains OFF and when the LCD is touched turns on for 2 minutes.
For devices with the Concealed LCD, the LCD Backlight default is OFF.

NETWORK CONFIGURATION

To configure, select the menu icon in the top left of display.
Select network system type. BACnet® or Modbus
MODBUS For a Modbus network, required parameters are Baud Rate, Parity Value, Stop Bits, CRC Value & Address
- MODBUS
- Baud Rate range: 9600, 19200, 38400, 57600, 76800 or 115200. The default network baud rate is 9600. Parity Value: None, Odd or Even. The default Modbus parity bit is None Stop Bits: 1 or 2. The default Modbus stop bits is 1.
- CRC Value: A001 (CRC-16 reverse), 1021 (CITT), 8005 (CRC-16) or 8408 (CITT reverse). The default CRC is A001.
- Address: 1-255. The default addess is 1.
BACNET® For a BACnet® network, the required parameters are Baud Rate & Address
- BACnet®
- Baud Rate range: 9600, 19200, 38400, 57600, 76800 or 115200. The default network baud rate is 9600. Address: 0-127. The default address is 0.
After initial setup, the touchscreen can be locked during network setup via the network to avoid any unauthorized access. See Network Setup Guide.
This device includes an EOL network termination jumper and will connect the (121 Ω) resistor correctly on the PCB. The default is OFF. Simply move the jumper to the ON position. Remove the cover to set the EOL Jumper.

WARNING

The CO2 sensor incorporates a self-calibration feature (ASC) to correct CO2 sensor drift. Use the self-calibration feature for applications where the CO2 sensor is exposed to fresh air (400 ppm) at least 1 hour each day. If the monitored space has 24 hour occupancy or consistently maintains higher or lower levels of CO2, turn off the self-calibration feature and perform a yearly calibration. If you disable the self-calibration feature at installation time without an allowance for the 7 day auto-calibration cycle, then perform a manual calibration to ensure the accuracy of the device. To disable the ASC, refer to the Network Setup Guide.
This sensor has multiple settings that can be set or adjusted after installation such as parameter ranges, relay settings, display settings, etc. and can only be completed over the Network.
To set or adjust parameters, refer to the Network Setup Guide.

NETWORK SETUP GUIDE

The network setup guides describe the implementation of the BACnet® or Modbus protocol. They are intended to assist control system programmers who may need to add support to their systems to communicate with the device.
BACnet® and Modbus setup guide download is available online.

BACnet® PROTOCOL

https://downloads.greystoneenergy.com/SG/SG- IAQXXXBAC-001.pdf

Modbus PROTOCOL

https://downloads.greystoneenergy.com/SG/SG- IAQXXXMOD-001.pdf

DISPLAY

The touchscreen display has several features that are configurable during setup. The factory default is all features on. To change features see Network Setup Guide.
Alarm Icon – The alarm icon is tied to the alarm relay. If the alarm relay is not in alarm mode the icon is not shown. If the alarm relay is activated the icon is shown. See alarm relay settings to set alarm functions.
Sensor Display – Display of the VOC, PM, CO2, and CH2O are optional. The factory default is all on. Each parameter can be turned off individually during network setup. To change the parameter display see Network Setup Guide.
Status Bars – The colored status bars for each parameter are displayed as Green, Yellow, or Red and change based on preset contamination levels. The factory default is all on. To turn all off see Network Setup Guide. Note: if the parameter displays are turned off in step 3, status bars are also off.

STATUS BAR LEGEND

VOC: <29 ppb – Green
- 29 to 85 ppb – Yellow
85 ppb – Red
CO2: <1000 ppm = Green
1000 to 1500 ppm = Yellow
- 1500 = Red
PM: <12 ug/m3 = Green
12 to 55 ug/m3 = Yellow
- 55 ug/m3 = Red
CH2O: <40 ppb = Green
40 to 100 ppb = Yellow
- 100 ppb = Red

LED – A tri-color, Green, Yellow, or Red status LED illuminates based on the same preset contamination levels as STEP 4. If any one of the measured parameters changes status, the LED color will change. The factory default is on. To turn off see Network Setup Guide.

SERVICING

For sensor servicing or to remove from wall, loosen the security screw. Complete removal is not required.
Remove cover by pulling outward on bottom and lift off backplate tabs
There 3 or 4 replaceable sensor modules depending on device purchased. The VOC, RH & Temperature sensor are combined on one module. For sensor module replacement, please refer to the sensor replacement instructions.
The device must be powered off to perform a sensor replacement or removal from the wall. An on/ off switch located on the top left of the device is provided.
To remove device from wall, use a standard screwdriver to gently pry up the locking tab.
While prying gently on locking tab, pull out the bottom of the sensor carriage. The backplate will remain mounted to the wall.
To re-install, turn Power Switch to On and attach cover to sensor carriage and tighten security screw before reinstalling on the backplate.
Install sensor module/cover by placing the tabs on the top of backplate into slots in the sensor module/cover and snap onto tabs on bottom of backplate

CALIBRATION (CO2 ONLY)

Field calibration can be completed on the CO2 sensor by 2 methods. 1) Using a field calibration kit, CO2 gas and sensor hood (Part# IAQA-CO2HOOD) or 2) By a using a handheld CO2 meter or secondary device as a reference. To perform using a field calibration kit, please refer field calibration instructions.
To perform using a handheld CO2 meter or secondary device as a reference follow the steps below. To start, perform STEP 1 & 2 from the SERVICING Section.

If touchscreen is enabled, skip to STEP 3. If touchscreen was disabled during initial set up it will need to be re-enabled via the Network settings, or turning power off and back on will enable the touchscreen for 2 minutes. Entering calibration screen will extend this time indefinitely.
An on/ off switch located on the top left of the device is provided. Turn off and back on.
Select the menu icon in the top left of the display
Select calibration from the menu items
Set calibration CO2 level based on reading from handheld CO2 meter or secondary reference device.
Select SET to calibrate the sensor.
When calibration is complete the CURRENT VALUE and SET VALUE will match. Select back arrow in top left of screen to exit to main screen
If touchscreen lock was set initially and disabled by turning the device off/on, after 2 minutes it will re-enable automatically. If disabled via the Network settings, it will need to be re-enabled via the Network settings.

DIMENSIONS

SPECIFICATIONS

PARTICULATE MATTER SENSOR

Type

Laser Scatter Method (Field Replaceable)
- Particulate Size
PM1.0, PM2.5, PM4.0 and PM10
- Mass Concentration Range
0 – 1000 ug/m3 or 0 – 3000 #/cm3
- (Selectable)
Mass Concentration Resolution
- 1 (ug/m3, 1#/cm3)
Accuracy PM1.0 and PM2.5
- ±10 ug/m3 (0 – 100 ug/m3), ±10%M.V.
(100 – 1000 ug/m3)
- Accuracy PM4 and PM10
±25 ug/m3 (0 – 100 ug/m3), ±25%M.V.
- (100 – 1000 ug/m3)
Sensor Life Expectancy >10 years

RELATIVE HUMIDITY SENSOR

Type Thermoset Polymer-based
- Capacitance Sensor Chip (Field Replaceable)
Range 0-100% RH
- Accuracy ±1.5% RH
Calibration +/-10% Offset
- Resolution 0.1% RH

NETWORK INTERFACE

Hardware
- MS/TP, 2-Wire, RS-485
Software
- BACnet® or Modbus
Baud Rate
- 9600, 19200, 38400, 57600, 76800, or
115200
- Address Range
BACnet®: 0 – 127, Modbus: 1 – 255

GENERAL

Power Supply 12 – 28 Vac/Vdc
- Wiring Termination
Backplate mounted terminal block (14 to 22 AWG)
- Consumption
Maximum 150mA @ 12Vdc, 1.8W
- Operating Conditions 0 to 60°C (32 to 140°F), 0 to 95 %RH
non-condensing
- Sensor Coverage 100 m2 (1000 ft2) typical
Certifications CE

CARBON DIOXIDE SENSOR

Type
- Dual channel non-dispersive infrared
(Field Replaceable)
- Accuracy
± (30ppm + 3% of measured value)
- Measurement Range
0 – 10000 ppm
- Auto-Cal
Selectable On (ASC) or Off (FRC)
- Altitude Adjustment
0 – 3000 meters
- Calibration
Field calibration capable with
- calibration kit
Sensor Life Expectancy >15 years

TEMPERATURE SENSOR

Type Bipolar Transistor, Sensor Chip
- Range 0 – 60°C, 32 – 140°F
Resolution 0.1°C/°F
- Accuracy ± 0.2°C, ± 0.4°F (Typical)
Calibration
- 5 to 5°C Offset, Resolution = 0.1°C ;
10 to 10°F Offset, Resolution = 0.1°F

RELAY

Contact Rating
- Form A, 2A max 24Vac/dc
Setpoint/Hysterisis/Delay
- Selectable based on selected sensor
Relay Setpoints (Selectable)
- PM Mass Concentration: 50 – 900 ug/ m3;
VOC: 100 – 500 VOC Index;
- CH2O: 50 – 900 ppb;
CO2: 500 – 9000 ppm
Humidity: 20 – 90%;
- Temperature: 5 – 40°C / 40 – 100°F
Relay Configuration
- Via BACnet®/Modbus
Switching Power
- 60W, 62.5VA