Heat Pump Configurations

Heat pumps can be configured in many different combinations to meet the unique requirements of each residence or building. Following are some of the more common configurations.

Split Configuration

Split ConfigurationIn the split configuration, the heat pump (1) has a line set going into the A-Coil (2) on the furnace. In the winter, the heat pump brings the water in from the loop field, raises it up to around 120 degrees, and then runs it through the A-Coil. The furnace blower then pushes air across the A-Coil where it absorbs the heat and distributes it throughout the house.

In the winter, the process reverses. The A-Coil in the furnace is used to absorb heat from the air in the home and the heat pump extracts the heat and ‘dumps’ it into the loop field where it can be absorbed into the ground.

A desuperheater tank (3) is used to gather hot water that is preheated by the heat pump whenever the system is running. The desuperheater stores the hot water until the hot water heater calls for more hot water. The hot water heater than takes in the preheated (up to 120 degree) hot water and only has to ‘finish” it off. This can reduce a hot water bill by up to 50%.

 Package Unit with Boiler Backup

Package boiler back up

In this configuration you have a packaged unit (1) that has its own fan and blower.This unit will operate like a traditional furnace and is able to heat and cool the home by itself.

To get the dual fuel rate, a fossil fuel boiler back up (2) was installed to back up the furnace. The boiler could also carry the heating load of the house all by itself.

Combination Hydronic and Force Air

Combination configuation

This configuration combines two different heat pumps, a packaged forced air unit with a hydronic unit.

The packaged forced air unit (1)  supplies heating and cooling through the duct-work. The hydronic unit (2) handles all of the radiant in floor heating. A fossil fuel boiler (3) serve as back up for the entire system.