I have a DOS based Tracer system with 4 VAV command units and a bunch of VAVS under it. There were PCM modules also connected but they were moved to a newer Summit panel and here in lies my problem.
The new system was obviously added during the summer months because OA is showing 83 degrees. It looks from the old graphics that the PCM modules were sending a command to the VAV command units to enable/disable the electric heat. Naturally in the summer it was locked out, now the heat doesnt work.
When I go to the UCM's status it says heat is disabled. If you go to the VAV command unit it says that heat is enabled but if you got to the groups in the command unit it says heat is disabled. Is there anyway to clear the last command, get the heat enabled and working?