UCM Tagging enable/disable

Issue:

UCM Tagging enable/disable

Resolution:

A UCM is tagged if it is currently 3.0 or more degrees from setpoint for more than an hour when any of the following condition exists:

- UCM is receiving its desired air

- The UCM is farthest from setpoint of all UCMs that are calling for and receiving their desired air.

To clear tagging temporarily, cycle power on the unit (CCPII). Set the system unoccupied (CCPIII).

To disable tagging permanently, edit Line 22 in the CCP setup to DISABLE (CCPII).
Use the VariTrac Software, from the Setup menu, choose Central Control Panel. Disable UCM Tagging on the Setup 1 tab (CCPIII).

 

Other Question/Problem/Cause Statements:

• UCM Tagging enable/disable
• CCP II in the Central Control Panel Setup, UCM Tagging shows that all VAV boxes are tagged. Why?
• none of the VAVs have a call status except one, and it says TAG
• All VAV UCMs tagged
• No zones are calling but they're all off setpoint
• CCP has no callers

Facts:

• VariTrac II Central Control Panel (CCP)
• VariTrac III Central Control Panel (CCP)

Original wave: wave1552