Product Overview

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Viconics Technologies Inc. | 9245 Langelier Blvd. | St.-Leonard | Quebec | Canada | H1P 3K9 | Tel: [phone] | Fa x: ( 514) 321-4150
028-6085-01 www.viconics.com | [e-mail] April 201
Application Guide
© 2015 Viconcis Technologies. All rights reserved.
VT8600 Rooftop, Heat Pump and Indoor Air Quality Controller
Economizer Control Mode, CO2 Level Control and Fresh Air Measurement Station
If the fresh air damper is to be used for both free cooling and CO2 level control with a fresh air measurement station, only the Min FA, Max
FA, Min CO2 and Max CO2 parameters as well as the free cooling sequence will be active.
• The FA Range parameter should be set to something other than 0 CFM.
• Use an air flow transmitter to read fresh air level with AI2 input (0-5 VDC input)
• Min FA, Max FA, Min CO2 and Max CO2 parameters should be set according to the required setting.
The highest value between free cooling demand output and interpolation output for the fresh air setpoint based on the CO2 level will be the
output to the fresh air damper.
Fresh air
measurement station
Outside air sensor
BACnet MS/TP
Wired communication protocol
Control Board
Supply air sensor
CO2 air sensor
Outside air
ZigBee
®
Pro
Optional wireless communication
Cooling coil Fan Heating coil
Return air
Supply air
Max FA
Setpoint
Current Fresh Setpoint
Min FA
Setpoint
Max CO
2
Min CO
2
Current CO2 Level