When attempting to perform maximum or minimum Flow Balance on a MNB-V1 controller, an error appears: Invalid flow setpoint values. To balance the selected flow setpoints.....

Issue

When attempting to perform maximum or minimum Flow Balance on a MNB-V1 controller, an error appears: "Invalid flow setpoint values. To balance the selected flow setpoints....".

Product Line

TAC I/A Series

Environment

MNB-V1 Controller

Cause

The MNB-V1’s are cooling only controllers and do not have their Reheat properly disabled.

Resolution

Check the date code of the MNB-V1 controller. If it is between 0902 and 0913 see TPA-RKFD-09-0007.01 on The Exchange Download Center for details. If it is outside that date code range contact Product Support Services for assistance.