Section 4
Auto-Zone CV & CV-EX
4-12 Start-Up and Troubleshooting
Input #5 - This input can be used to monitor an alarm contact closure. If the contact is
closed, the alarm is active.
Note: All temperature sensors must be Thermistor Type III which provide 77°F @
10K Ohms Resistance.
Analog Output Description
Analog Output - This output is used to control the Outdoor Air Damper if you config-
ure the unit for Economizer control. The output voltage range is user programmable to
cover all types of proportional actuators. 0 - 10 VDC, 2 - 10 VDC outputs are possible.
Relay Output Descriptions
Output #1 - Main Fan ON/OFF Control
Output #2 - Mechanical Heating / Cooling Stage #1
Output #3 - Mechanical Heating / Cooling Stage #2
Output #4 - Mechanical Heating / Cooling Stage #3
Output #5 - Mechanical Heating / Cooling Stage #4
Any combination of heating and cooling stages may be configured during setup as long
as the required number of outputs does not exceed four.
RS-485 Communications Connector
This connector provides the connection point for the Local Loop RS-485 communica-
tions loop. The wiring consists of a twisted pair of wires with a shield.
T - RS485 (+) Communications terminal
SHLD - Common return wire, this point is internally tied to GND on the CV
Controller.
R - RS485 (-) Communications terminal
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