The Hydro-Temp fully variable speed system uses the Bristol Benchmark Vstar Compressor. This is not a system that has 4, 6, 10 or 12 fixed speeds. The system controller allows the system to be fully variable between lowest speed to max speed. The controller also allows for: zoning, domestic hot water heating, infloor water heating, and / or pool heating.
Available in 3 Tonnages:
2.5 ton - Variable from 0.7 ton to 2.5 ton
4.0 ton - Variable from 1.1 ton to 4.0 ton
6.0 ton - Variable from 1.8 ton to 6.0 ton.
For more information about features including real time system status, diagnostics, run time charts and all setting adjustments via the main zone thermostats please read the literature linked below.