Nailor 35SW - Modulating Reheat

IOM-EZVAVINST
Date: 10-2016 Supersedes: 7-2016
Nailor reserves the right to change any information concerning product or specification without notice or obligation.
Page 31 of 48
Installation and Operation Manual
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EZvav Digital Controls
ModulangReheat
This applicaon is for a BAC-8005-36 controller. The modulang opon for reheat can control either an electric reheat unit with an
analog input or a modulang hot water valve. The analog reheat output at output terminal AO3 varies between 0 and 10 volts DC.
For cooling and heang, a duct temperature sensor is required for Discharge Air Temperature liming and automac changeover.
See the topic Advanced opons on page 21 for instrucons to enable Discharge Air Temperature liming.
When connecng the controller to a fan powered VAV terminal unit, the fan circuits must be compable with the following
specicaons.
• The fan start circuit is a 24 volt AC pilot duty output.
• The fan speed output is 0 – 10 volts DC.
Submial sheets for several variaons of this applicaon are available from the Resources page at www.nailor.com.
Figure7-3 Modulangreheat
ON CTS
1 2
COMM
READY
AI1
AI5
GND
AO4
AO3
SC
BO8
BO5
BO6
SC
BO7
24VAC
AI6
GND
AI7
T-STAT/
SENSOR
-A
+B
S
EOL
BACnet MS/TP
Fan
Speed
0-10 VDC
Duct
Temp
Sensor
Analog
Heat
24VAC
Fan start
24 VAC
Class 2