Just installed a Pentair Intellitouch automation system to control my 8 year old IG pool. Valve, light, pumps controls and thermostats, everything worked flawlessly when I fired up the Intellitouch, EXCEPT the control of my AquaCal Heatwave heat pump. I connected the two wire low voltage heater control on the Intellitouch to the Y-Z terminals on the heat pump microprocessor board as instructed by AquaCal documentation. Followed the AquaCal programming instructions for two wire controllers and all responses seemed OK. The problem is that the heat pump runs (both fan and compressor) all the time whenever the pump is running, regardless of temperature set point on the Intellitouch. I've rerun the AquaCal programming several times and I also replaced the low voltage wire, same result.
Would really appreciate any suggestions.