On a Tracker EMTK with CCP, cooling minimum flow does not match what was entered in the setup menu. What is the ventilation mode?

Issue:

On a Tracker EMTK with CCP, cooling minimum flow does not match what was entered in the setup menu. What is the ventilation mode?

Resolution:

Problem:
Tracker with CCP: Tracker's Status menu shows a cooling minimum flow of 440 cfm, when 110 cfm was entered in the setup menu. What is this ventilation mode?

Solution:
The Ventilation Mode of the CCP was enabled. VADA-OG-2 explains it as follows: When Ventilation Mode is enabled the group is occupied and the system has been in a zero energy state for more than 4 minutes, the VariTrac II CCP does not allow the group's minimum flow/position multiplier to fall below 4.0. A zero energy state shall be any period when the system fan is on and no stages of heat or cool are on. This mode allows for extra ventilation when no heating or cooling is being used. The CCP default value for this mode is disabled.


CARP2743
1/29/2001

 

Other Question/Problem/Cause Statements:

• On a Tracker EMTK with CCP, cooling minimum flow does not match what was entered in the setup menu. What is the ventilation mode?

Facts:

• Tracker EMTK
• VariTrac II Central Control Panel (CCP)
• Tracker EMTK
• VariTrac II Central Control Panel (CCP)

Original wave: case2880