Ports to connect to on The Attendant: BUS1 – BUS4 or Heater H1 – H5
These devices should only be powered directly from the power center or breaker panel. There is no need to run through a relay, as The Attendant will command them to turn on/off by way of the communication cable.
Jandy heaters can be controlled using legacy fireman switch/dry contact connections or digital Serial RS485 connections.
Dry Contact/Fireman Switch connections allow The Attendant to control the heater on/off state to manage a desired water temperature setpoint
Serial RS-485 connections allow The Attendant to control the heater on/off state to manage a desired water temperature setpoint AND read/report any error codes reported by the unit
Poolside Tech recommends using Serial RS-485 connections whenever possible, however, it is not required.
Serial RS-485 Connection (Recommended)
Serial RS-485 is a preferred connection method as it allows for accurate heater status and error-reporting feedback to be sent to The Attendant.
Controlling the Jandy requires connecting the yellow and black wires from the heater’s RS-485 connector (marked h in the following diagram) to the D+ and D- terminals on one of the communication bus connectors of The Attendant labeled BUS1 through BUS4. Connect the yellow wire to D- and black to D+.
Please follow the procedure below to place the heater into remote mode:
- Make sure the heater is off
- Press and hold MENU, then press and hold the POOL and SPA buttons for 5 seconds to access service mode.
- Press down until the display reads REMOTE
- Press MENU – REMOTE OFF will be displayed
- Press down until REMOTE TSTAT is displayed
- Press MENU
- Press the POOL or SPA buttons to exit service mode
Dry Contact / Fireman Switch Connection
Connect two wires from any available Heater port on The Attendant to the Remote connector (b) marked on the diagram. Use the SPA and COM terminals for your connections on the heater board.
Please follow the procedure below to place the heater into HI-LO-COM mode:
- Make sure the heater is off
- Press and hold MENU, then press and hold the POOL and SPA buttons for 5 seconds to access service mode.
- Press down until the display reads REMOTE
- Press MENU – REMOTE OFF will be displayed
- Press down until HI-LO-COM is displayed
- Press MENU
- Press the POOL or SPA buttons to exit service mode