Heatpump connection question


Well-known member
Nov 27, 2017
Hello all i just got a heatpump (hayward 140k btu) and want to install it my self (im electrician just not familiar with heatpumps), so the manual only shows electrical connections to the heatpump, in my case 220v. My question is shouldnt there be a connection between my pump and the heatpump for the heatpump to know when the pump is running or not running? My pump is on a 8h timer, what happens after the 8h are over and the heatpump is turned on? I know that when it detects low/no flow it turns off, is this the way it is meant to run?


TFP Expert
Apr 29, 2016
Quaker Hill, CT
Turn the heat pump on. Follow the instructions on how to set up the controls. Set the desired temp you want your pool. let your pool pump turn on and off on the timer and walk away. The heat pump will run when ever the pump is running and the water is below the temp you set it for.

A few thoughts to get the most out of your heat pump. Use a solar cover as much as possible. If you aren't swimming slap that cover on (this is actually true for any heater not just a heat pump). Time your pool pump to only run during the warmest part of the day, for me that about 10am-7pm. Heat pumps work most efficiently when the air is warm. Also running your pump when the air is cold will cause your pool to loose heat faster.

Enjoy the warm water.