Section 3
Auto-Zone CV & CV-EX
3-20 Programming
Setpoint Screen #10
Setpoint Screen #11
Setpoint Screen #12
CVAHU Setpoints
Cool Lockout.: 50°F
Heat Lockout.: 65°F
The mechanical heating and cooling can be locked out from
operating based on the Outdoor Air Temperature. If the
Outdoor Air Temperature is above the Heating Lockout, no
heating stages are allowed to activate or remain on if they are
already ON. If the Outdoor Air drops below the Cooling
Lockout, no cooling stages are allowed to activate or remain on
if they are already ON.
Minimum Default Maximum
Cool Lockout -40°F 50°F 90°F
Heat Lockout 30°F 65°F 99°F
CVAHU Setpoints
Economizer Setpoints
Enable Setpt.: 50°F
Supply Setpt.: 55°F
If the CVAHU has been configured for Economizer Control,
this screen will appear.
The Econo Enable setpoint is the Outdoor Air or Wetbulb
Temperature that enables the Economizer to open past its
minimum position setpoint to control Supply Air Temperature.
The Supply Setpt is the Supply Air Temperature the
Economizer tries to maintain.
Minimum Default Maximum
Enable Setpt -40°F 50°F 99°F
Supply Setpt 50°F 55°F 90°F
The Min Econo % is the position the economizer holds during
occupied mode when it is not enabled for operation, due to
Outdoor Air or Wetbulb Temperature.
During economizer control, the economizer damper is allowed
to move open or closed, as required, at a rate controlled by this
value. Use this to speed up or slow down the operation of your
economizer. The larger the number, the slower the damper
moves.
Minimum Default Maximum
Min Position 0 % 10 % 100 %
Control Rate 1 50 90
CVAHU Setpoints
Economizer Setpoints
Min Position: 10 %
Control Rate:. 50
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