Modulating Reheat - Nailor BAC-8001-36 Installation And Operation Manual

Modulating Reheat
This application is for a BAC-8005-36 controller. The modulating option for reheat can control either an electric reheat unit with an
analog input or a modulating hot water valve. The analog reheat output at output terminal AO3 varies between 0 and 10 volts DC.
For cooling and heating, a duct temperature sensor is required for Discharge Air Temperature limiting and automatic changeover.
See the topic Advanced options on page 21 for instructions to enable Discharge Air Temperature limiting.
When connecting the controller to a fan powered VAV terminal unit, the fan circuits must be compatible with the following
specifications.
• The fan start circuit is a 24 volt AC pilot duty output.
• The fan speed output is 0 – 10 volts DC.
Submittal sheets for several variations of this application are available from the Resources page at www.nailor.com.
Figure 7-3 Modulating reheat
Duct
Temp
Sensor
Analog
Heat
Fan
Speed
0-10 VDC
24VAC
Fan start
24 VAC
Class 2
Date: 10-2016 Supersedes: 7-2016
Nailor reserves the right to change any information concerning product or specification without notice or obligation.
Installation and Operation Manual
COMM
READY
AI1
GND
AO3
AO4
AI5
AI6
GND
AI7
SC
BO5
BO6
BO7
SC
BO8
24VAC
Page 31 of 48
EZvav Digital Controls
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ON CTS
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BACnet MS/TP
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