An Essential Guide To Installing A Heat Pump

Posted on: 20 June 2023

Although the process of installing a heat pump can be quite technical and is generally recommended to be undertaken by a licensed professional, it's beneficial to understand the procedure. This article outlines the steps involved.

Step 1: Preparation

Before the physical installation begins, assess the optimal location for placing the heat pump unit, which is typically outside the house. The selected area should be free from debris, readily accessible for maintenance, and spacious enough to facilitate efficient heat dissipation. 

The indoor component, meanwhile, should be located close to a power supply and a drainage point for the condensation produced during operation.

Step 2: Mounting the Units

The installation process begins with mounting the outdoor unit on a sturdy, level platform to ensure it remains stable and well-supported. An elevation of a few inches is advisable to prevent snow or water from reaching the unit. 

Inside the house, mount the air handler unit on the wall at a point where it can effectively distribute air throughout the space.

Step 3: Connecting the Units

Following the mounting process, the next stage involves creating a connection between the indoor and outdoor units. Start by drilling a hole through the wall from the inside, ensuring the hole aligns with the mounting plate of the indoor unit. This hole will act as a conduit for the refrigerant tubing, control cable, and condensate drain.

When connecting the tubing and cables, measure the distance between the indoor and outdoor units to cut the necessary length of tubing and wire. Feed these through the wall hole and connect each end to its respective unit. 

The refrigerant tubing must be connected securely to prevent any leaks, and the control cable should be firmly attached to facilitate communication between the two units.

Make sure to address the condensate drain. The indoor unit will produce condensation during operation, which needs to be directed away from the unit to prevent water damage. Attach the drain pipe to the indoor unit, feed it through the hole in the wall, and ensure it leads to a suitable drainage location.

Step 4: Connecting to the Power Supply

This stage of the installation involves connecting the heat pump to the home's electrical system. Safety is paramount here, so make sure the power is off before making the connection. Follow the manufacturer's instructions to ensure the correct voltage and circuit capacity.

Step 5: Charging and Testing

Once all the components are in place, charge the system with the required type and amount of refrigerant, as specified by the manufacturer. The system must then be pressure-tested to check for leaks and vacuumed to remove any contaminants and air. Finally, test the heat pump in both heating and cooling modes to verify proper operation.

Contact a professional for more information about heat pump installation