WattMaster VAV - Manual (Page 22)

Component & System Wiring 22
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
05/12/04
VAV-OATempWire1.CDR
Outside Air Temperature Sensor To
1
Outside AirTemperature Sensor
The Outside Air Sensor must be wired as shown in the illustration above for proper
operation. The Outside Air Temperature Sensor is a 10K Type III thermistor sensor.
The sensor should be mounted in the upright position as shown, in an area that is
protected from the elements and direct sunlight. Be sure to make the wiring splices
inside of the Outside Air Temperature Sensor weathertight enclosure.
GND
INPUTS
GND
AOUT1
AOUT2
GND
+VDC
AIN1
AIN2
AIN3
AIN4
AIN5
AIN7
Outdoor
Air Temperature
Sensor
WMVAV Controller
Make Splice Connections
Inside Sensor Enclosure
As Shown.
Caution: Be sure to mount the Outside Air Sensor in an area that is not exposed to direct sunlight. A
shaded area under the eve of the building or under the HVAC unit rainhood is normally a good
location. If sensor is not located as specified, erroneous outside air temperature readings will
result. Unused conduit opening(s) must have closure plugs installed and must be coated with a
sealing compound to provide raintight seal. Water can damage sensor!
Outside Air Sensor Wiring