Trane Tracker Programming issue?

[illuzionb18c1]

Building has Trane Tracker with one air handler/heat pump tied to approximately 15 rooms.

The room setpoints for Heating is set to 68 on all thermostats, all of the room temperatures are below 68 as reported by the Trane Tracker system, BUT the system is calling for cooling. Is this simply a controls issue or could it be something else?

It is verified however that all the equipment is in working order which further makes me believe it’s a programming/controls issue.

[maxpower]

Considering its a heatpump, are you sure its wired correctly? Reversing valve energized or de-energized in heating mode? Does the Tracker control the reversing valve?

[illuzionb18c1]

Considering its a heatpump, are you sure its wired correctly? Reversing valve energized or de-energized in heating mode? Does the Tracker control the reversing valve?

actually a lot of contractors have come try to 'fix' it and im not sure what condition anything is in anymore. im just trying to get some ideas of what it could be.

ex.
15 rooms,2/3 were around 58-59F and were calling for COOLING, 1/3 were around 60-62 and were calling for heat. Essentially it was freezing everywhere.

I do know the heat function does work, as on a seperate occasion i felt heat coming from two of the spaces and no air from the rest.

[scrooloose]

Mode of the VAV are cooling or the mode of the AHU? You have a CCP that is controlling the AHU and VAVs. The CCP tells the VAV what mode to be in based on the supply air temp. So verify that your SAT is reading correctly. You have to be +10 deg above room temp for it to be considered heating mode.

So make sure AHU is heating, SAT is above 80 deg at least.

[Rick_h]

Make sure you check the bypass damper as well. Was on a similar call 2 weeks ago and bypass damper was stuck wide open.

[maxpower]

Is this VVT or VAV? Atleast now we know that the heat does work.