I would like to control my Jandy LRZ Legacy heater using my existing home automation system. I notice in the heater installation manual (p. 23 linked below) that the main control board has a remote control connector with three pins labelled COM, POOL and SPA. Using my home automation system I can control a relay connected to this remote control terminal, but the manual does not provide any current requirements for the remote control connections. For example, does the heater turn on when 24 VAC is passed through the COM and POOL terminals? Or is this a contact closure detector such that the heater turns on by simply bridging the connection between the COM and POOL terminals? Or does this terminal have different requirements altogether? Perhaps there is an industry standard used in the pool heater industry that somebody can point me to?
Thanks in advance for any help or advice.
Link to Jandy Legacy manual: http://www.jandy.com/~/media/zodiac/global/downloads/h/h0299500.pdf
Thanks in advance for any help or advice.
Link to Jandy Legacy manual: http://www.jandy.com/~/media/zodiac/global/downloads/h/h0299500.pdf