CO2 Sensing Kit - Symbio Precedent 6 to 25 Ton - Installation Guide
Summary:
Demand controlled ventilation (DCV) reduces energy consumption by reducing the outdoor air damper below design minimum ventilation based on space CO2. When Demand Controlled Ventilation is configured and Supply Fan Compensation is enabled, DCV resets the outdoor air damper minimum position based on space CO2 and supply fan speed. Decreasing CO2 levels will decrease the damper position below the Design Minimum toward the DCV minimum damper position setpoint. Increasing the CO2 level will increase the damper position toward the design minimum setpoint. DCV requires a valid space CO2 value from a building management system or wired sensor. If the Space CO2 value is invalid or Supply Fan Compensation is disabled, the Symbio™ 700 will revert to Outdoor Air Minimum Position Control.
| Model Number: | Used With: |
| FIACO2K001* | Precedent™ with wall mount sensor |
| FIACO2K002** | Precedent™ with duct mount CO2 sensor |
Introduction
Read this manual thoroughly before operating or servicing the unit. Click the e-library image below to download the latest PDF of the CO2 Sensing Kit Guide.
Wire Sensor Location:
Note:
An economizer must be installed to enable Demand Controlled Ventilation.
Configuration:
Demand Controlled Ventilation:
- From the Home screen > Settings > View Configuration > Edit > Proceed and change
- Demand Controlled Ventilation = Enabled
- CO2 Sensor = Installed
Possible Alarms:
- Space CO2 Concentration Input
- Space CO2 Concentration Active
- Space CO2 Concentration Arbitrator
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WARNING:
Information in this article is intended for use by individuals possessing adequate backgrounds of electrical and mechanical experience and who comply with all federal, state, and local laws, rules, orders, or regulations related to the installation, service, or repair of a heating or central air conditioning product. Any attempt to install, service, or repair a heating or central air conditioning product may result in personal injury and/or property damage. The manufacturer or seller cannot be responsible for the interpretation of the information contained herein, nor can it assume any liability in connection with its use.