Models: InverELITE084, InverELITE1100, InverECO320, InverECO400, InverECO500, InverECO600, InverTITAN090, InverTITAN112, InverTITAN140
RS 485 Connection (Recommended)
To enable RS-485 communication, a Madimack connection cable is required. This cable is typically supplied with the heat pump. If your heat pump did not include the cable, please contact Madimack to order the correct replacement.
Madimack heat pumps can be controlled using either Remote connections or RS-485 communications.
Remote connections allow The Attendant to control the heat pump’s on/off operation to maintain a desired water temperature setpoint.
When connected via RS-485, The Attendant can control the heat pump’s operating state while also providing enhanced monitoring and diagnostics. This includes access to water temperature, operating status, and fault information directly within The Attendant.
Poolside Tech recommends using an RS-485 connection whenever possible to take advantage of the additional control and diagnostic capabilities; however, Remote connections remain a fully supported option.
Serial RS-485 Connection (Recommended)

| Heat Pump Connector | Bus Connector |
|---|---|
| A Pin | D+ |
| B Pin | D- |
Dry Contact / Fireman Switch Connection (Not Recommended)
This connection method controls ON/OFF of the heat pump via a dry contact/firemans switch connection using contacts 5 & 6 on the heat pump’s internal Terminal Board.

Use two conductor 18-22AWG cable to connect the 5/6 contact connector from the heat pump to one of the available Heater ports (H1 – H5) on The Attendant.
Creating the Device in the Poolside Mobile App
Using the Poolside mobile app, add or edit a Heat Pump device in Installer Mode.

