Installer Resources - Air-Source Heat Pumps
MassCEC provides incentives for the installation of air-source heat pump (ASHP) heating systems at residential, commercial, industrial, institutional, and public facilities. This page provides resources for ASHP installers (and VRF designers) about the process of applying for residential, small-scale, and commercial-scale awards.
- A residential ASHP project is any project at a single residential unit.
- A small-scale ASHP project has a heating capacity of up to 240,000 BTU/hr or up to 20 single-head units.
- A commercial-scale ASHP project has a heating capacity over 240,000 BTU/hr or more than 20 single-head units.
- A variable refrigerant flow (VRF) project is always considered commercial scale.
Residential and Small-Scale Installer Resources
- Program Manual: Contains information on how to apply, technical requirements, mandatory certifications, and grant structure. Installers must read this document before participating in the program.
- Participant’s Agreement: Must be signed by the System Owner.
- Primary Installer Agreement: Must be submitted with proof of training once by each Primary Installer in order to participate in the Program. See sample proof of training.
- Residential ASHP Application Form: Must be submitted for residential projects with the required supporting documentation, as described in the Program Manual.
- Small-Scale ASHP Application Form: Must be submitted for all non-residential, small-scale projects with the required supporting documentation, as described in the Program Manual.
- Please click here to download the residential ASHP projects database
Commercial-Scale Designer/Installer Resources
- Program Manual: Contains information on how to apply, technical requirements, mandatory certifications, and grant structure. Designers and installers must read this document before participating in the program.
- System Owner’s Agreement: Must be signed by the System Owner for each Project.
- Primary Designer/Installer Agreement: Must be submitted once by each Primary Designer (for VRF) and Primary Installer (for both VRF and Mini-Splits) in order to participate in the Program.
- VRF Application Form: Must be submitted with the required supporting documentation, as described in the Program Manual.
- Mini-Splits Application Form: Must be submitted with the required supporting documentation, as described in the Program Manual.
- Project Narrative: Supplements the Application Form
- VRF Database: Searchable database of AHRI specification sheets. (Small-scale VRF units are listed in AHRI’s mini-split directory.)
Code of Conduct
All installers who participate in MassCEC's rebate programs are bound by MassCEC's Code of Conduct.
MassCEC’s program requirements are intended to ensure high-quality project designs and installations. We recommend double-checking the following to make sure the system meets program requirements and to minimize the delays associated with these common installation and application errors.
How to Avoid Common Installation Errors:
- Ensure the outdoor condenser is mounted securely and sits above the snow line.
- Ensure the outdoor rated wire should not be a Type NM-B cable. NEC Article 334.12(B)(4) prohibits the use of NM cable in wet locations, and Article 300.9 defines the interior of an outdoor raceway as a wet location.
- Ensure the indoor and outdoor units power wire connection meets Article 110.14 in the MA Amendments of the NEC which states, “Connection by means of wire binding screws or studs and nuts having upturned lugs or equivalent shall be permitted or 10 AWG or smaller solid conductors. Where stranded conductors are terminated on and not looped through such terminals, the terminals shall be identified for such use, or the strands at the terminals shall be made solid.”
- Ensure the ampacity of the circuit breaker connection follows the ASHP manufacturer's requirements.
- Ensure that the refrigerant charge is correct based on the line set length and that the line set is purged, pressure tested, and evacuated per the manufacturer's instructions.
How to Avoid Common Application Errors:
- Ensure that the application has been submitted via email in the Excel file format.
- Ensure all supplementary documents have been submitted with the Excel application.
- Ensure all contact information for the installer and applicant is accurate and spelled correctly.
- Ensure the model number on the invoice matches the application.
- Confirm with the rebate recipient whether their mailing address differs from the physical address, and fill out the application accordingly.
- Ensure the project site has had an energy audit in the last four years, or scheduled for the upcoming six months after project completion.
- Confirm the air-source heat pump will be used consistently throughout the winter to heat the residence.
Feel free to email us at ASHP@masscec.com or call 617-315-9357. Please note that review and processing time for submitted applications is typically 2 to 4 weeks and may be longer for commercial-scale systems.