WattMaster VAV - Manual (Page 21)

Component & System Wiring 21
Notes:
1.)All Wiring To Be In Accordance With
Local And National Electrical Codes
and Specifications.
FILENAME
DATE: B. Crews
DESCRIPTION: PAGE
DRAWN BY:
WMVAV Controller Wiring
JOB NAME
03/24/04
VAV-SupRetTempWire1.CDR
Supply & Return Air Temperature Sensor To
1
GND
INPUTS
GND
AOUT1
AOUT2
GND
+VDC
AIN1
AIN2
AIN3
AIN4
AIN5
AIN7
Mount In HVAC
Unit Supply
Air Duct
Mount In HVAC
Unit Return
Air Duct
Supply
Air Temperature
Sensor
Return
Air Temperature
Sensor
WMVAV Controller Board
Supply & Return Sensor Information
The Supply and Return Air Temperature Sensors must be wired as shown in the
illustration below for proper operation. The Supply and Return Air Temperature
Sensors are 10K Type III thermistor sensors. The Supply Air Temperature Sensor
should be mounted in the unit discharge plenum or in the supply air duct. The Return
Air Temperature Sensor should be mounted in the return air duct. If the system has a
bypass damper installed, be sure the return air sensor is located upstream of the
bypass duct connection.
Supply & Return Sensor Wiring