I could use some advise. How can you control 2 units with 1 stat?
I have 2 situations, one is a classroom building that only has single phase power.
Classroom:PE designs system with 1 supply duct with 2 Trane wcz048 heat pumps. Each has a 2 stage compressor.
How would you control these units? This equipment will be tied into the schools EMCS.
The second situation is a residence with 2 units serving a great-room with walls of glass.
It would be simple enough to twin the furnaces but I would like to stage the single stage condensers with a single control instead of adjusting set points.
Your suggestions would be greatly appreciated