Electrical Requirements for HVAC Installation Projects
Heating and cooling equipment needs the right electrical supply to run, and a new installation can change what that supply has to carry. This page explains the electrical requirements that come with HVAC projects. It is not a general electrical service page, and any additional electrical work required for your HVAC installation is identified in the project estimate.
- Same-day repair
- Free estimates on new systems
- Financing through Wisetack
- Warranty on our labor
Planning an HVAC project? Tell me what you're installing.
At a glance
- Service area
- New Bedford, Lakeville and the rest of the SouthCoast, plus the South Shore, Cape Cod and Rhode Island
- Based in
- Lakeville, MA. We come to your home or business.
- Phone
- 508-521-9477, answered 24/7
- Specialties
- The electrical requirements that come with heat pumps, AC, furnaces, boilers and water heaters, and how they are identified in the estimate
- Pricing
- Repairs start with a paid diagnostic visit. Replacements get a free written estimate.
What electrical requirements come with HVAC equipment?
These are the electrical items that come with heating and cooling equipment. The estimate names the ones your project needs.
A circuit sized to the equipment
Heat pumps, air conditioners, electric water heaters and many mini splits run on their own circuit. The rating label on the equipment sets the breaker and wire size it needs.
A disconnect at the outdoor unit
An outdoor unit usually needs a disconnect within sight of the unit. The estimate lists it when the installation needs one.
Thermostat and control wiring
Low-voltage wiring connects the thermostat, the indoor unit and the outdoor unit. We run and test this control wiring as part of an installation or a repair.
Power and safety checks on equipment
We check that the equipment gets the voltage it needs and that its safety circuits work. A failed capacitor, contactor or relay is part of a repair visit.
Work beyond the equipment’s own controls
Some projects need electrical work beyond the equipment itself, such as a new circuit for a new unit. Any additional electrical work required for your HVAC installation is identified in the project estimate.
How is the electrical side of a project identified?
Estimate. Replacement or new equipment gets a free written estimate. The estimate identifies any additional electrical work the installation requires, before the project starts.
What to have ready.
- The make and model on the equipment’s rating label, as a photo
- Which breaker the equipment runs on, and whether it has tripped
- What the equipment did just before it stopped
- Any error code or blinking light
Equipment that has stopped? A fault in heating or cooling equipment begins with a paid diagnostic visit. We test the circuit from the thermostat to the equipment and give you the cause and the repair price in writing.
Book online. For a project you are planning ahead, send the form or call; we confirm your visit by text. If you have no heat, call 508-521-9477.
Mass Save Heat Pump Installer Network participating contractor.
Rebates and the 0% HEAT Loan available.
Financing for new systems runs through Wisetack via Housecall Pro, subject to credit approval. Estimates on new systems are free.
Where do you work on HVAC projects?
We work in Lakeville, New Bedford, Middleborough, Dartmouth, Fall River, Taunton, Wareham, Brockton, Fairhaven, and the rest of the SouthCoast, South Shore, Cape Cod and Rhode Island. See all service areas.
Add it to a maintenance plan
Seasonal tune-ups keep your system efficient and catch small problems before the first freeze.
See maintenance plansHVAC electrical questions, answered
Is this a general electrical service page?
No. This page explains the electrical requirements that come with heating and cooling projects. Any additional electrical work required for your HVAC installation is identified in the project estimate.
Does a new heat pump or AC need its own circuit?
Usually, yes. The rating label on the equipment sets the circuit and breaker size it needs, and the estimate says what your installation requires.
Is a breaker that keeps tripping an HVAC problem?
It can be. A failing compressor, motor or capacitor can draw too much current. Do not keep resetting it, and call us.
Why is my boiler on but a zone not heating?
The zone valve, its relay or the thermostat wire is the usual cause. We trace the call for heat to the zone and replace the part that failed.
Recent Work Across the SouthCoast
Real jobs, photographed by the technician who did the work. Each service page has the full set.
Ask about the electrical side of your installation in New Bedford & the SouthCoast
Call 508-521-9477, answered 24/7, or tap Book ASAP and the office confirms your visit by text.