Found system 2 hz432 zone control board not bringing equipment on on call for cooling - recommend replacement of zone control board - wired system to thermostat side of zone control to allow unit to cycle on and run. y1 (yellow) and y2 (black) from relays to thermostat 1 are for equipment, equipment wires are the low voltage wires in front of zone control board. Will call when zone control board comes in to schedule repair. Also interested in comfort club for 2 dual fuel geothermal systems and 1 Mitsubishi minisplit system.