How to Install a New Heat Pump

A heat pump is commonly used to gather heat from outside sources to transfer inside a home or building during cold months, or to transfer heat from inside to outside during warmer months. Using a heat pump unit is one of the most common and efficient ways to heat and cool a home. Installing a heat pump in your home or building can greatly reduce heating and cooling costs on your monthly electric bill.

A heat pump provides an inexpensive method of heating and cooling a home.
  1. Select a location for the outside part of your heat pump, and place it about 10 inches from the outside wall of your house or building. Ensure the side of the pump with all the connections is placed closest to the wall. Leave about 20 inches of space for service access at the back corner of the unit. Leave at least 3 feet of clearance above the unit so the air vents are not blocked.

  2. Rest the heat pump on a 4-inch concrete slab next to the home or building's outside wall. Ensure the slab is level. Consider placing sand or gravel around the slab so weeds do not overtake the unit. Also make sure there is good drainage around the unit so it's not damaged by standing water.

  3. Position the inside part of the unit in your home or building. Be sure the liquid and suction lines are not placed too high, relative to the outside part of the unit. The two parts must be connected later. Insulate the pump's gas line with 1/2-inch thick foam insulation. Cover the end of the tubing with insulation as well, so the tubing is protected from debris.

  4. Connect the outdoor unit to the indoor section. Use round copper tubing at the connection end. Remove the valve cap on the outside unit and open the valve body with an Allen wrench. Insert the copper tubing in the valve body and replace the valve cap. Use the Allen wrench to tighten the cap.

  5. Let the pressure from the indoor unit's coil slowly release. Secure the tubing to the indoor unit so the coil remains dry. An exposed coil may be more likely to gather moisture and damage the unit. Ensure all connections are secure, then turn the pump on.

About the Author

Corey Morris has been writing since 2009. He has been a reporter for his campus newspaper, "The Rotunda" and is the publication's news editor. His work focuses on topics in news, politics and community events. He is pursuing a Bachelor of Science in political science and mass media from Longwood University in Farmville, Va.