System overrides – Auto-Zone Control Systems Auto-Zone Basic Systems Installation & Operation (Version 02C) User Manual

Page 92

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Section 3

Auto-Zone Basic

3-24 Programming

System Overrides

The Zone Manager provides some user-selectable override modes. This allows you to
troubleshoot the system or set up temporary conditions for those situations when normal
operation of the system is not required.

Override Screen #1


















The Zone Manager defaults to the Auto mode of operation when
first powered up. Any force modes entered will be retained in
non-volatile memory. The unit will resume the force mode of
operation any time the power is cycled.

0) Auto

- Use internal schedules for Day/Night

Mode

1) Occupied - Forced to Continuous Day or Occupied

Mode

2) Night

- Forced to Continuous Night or Unoccupied

Mode. If the Forced Occupied Binary Input
Contact is closed, this mode will override it
to OFF. Use the Auto mode programmed
for continuous Unoccupied operation if you
want to use the Forced Occupied Binary
Input Contact.

3) Fan Only This is the mode that is active whenever

you see the Purge Cycle message being
displayed. It disables any heating or cooling
and forces all the boxes to move their
dampers to the full 100 percent open
position. You can use this mode any time
you want to manually purge your building.

0) AUTO (Time Clock)

1) FORCE Occupied

2) FORCE Unoccupied

3) FAN ONLY [Mode 0]

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