Auto-Zone Control Systems Auto-Zone CV-C Controller Installation Guide (Version 01A) User Manual

Page 27

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Auto-Zone CV-C

Section 2

Sequence of Operation

2-17

Once a stage has been turned off, it must remain off for this amount of time
before it can be restarted.

d.

Changeover Delay ( User Adjustable )

If the previous HVAC mode was for cooling, the heating mode is not
allowed to activate any heat stages until this delay period has been satisfied.
This period is used to prevent rapid cycling back and forth between the
heating and cooling modes.

The Relay Output assignment always assigns heating stages starting with those defined
on the TUC-5R+ board and then any additional stages defined on the Relay Expansion
board. The stages are assigned from the lowest relay number up to the highest. If you
defined 6 relays for heating and two were on the TUC-5R+ board and the remaining four
were on the relay expansion board, then stage #1 would be the lower relay number on the
TUC board and stage #3 would be the lowest relay number on the expansion board.

NOTE: You must take into account the stage assignments

when you physically wire the controller and/or
expansion board into your AHU equipment.

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