Ductless Mini-Split Wiring.

NH 2022-2023 Licensing Concerns and Deficiencies.
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NH 2022-2023 Licensing Concerns and Deficiencies.

2022-2023 License and Installation Concerns Bulletin.

The Electricians' Licensing Board in conjunction with the State Electrical Inspectors, municipal electrical & building inspectors & other representatives of the electrical industry in the State of New Hampshire have put together this list of common licensing and installation concerns and problems encountered by the Board's office staff relative to the State's licensing law RSA 319-C and the administrative rules.

7. Ductless Mini-Split wiring

With the recent advancement of heat pump technology, the installation of mini split cooling and heating systems have increased exponentially. Consequently, there has been an increase in licensing and installation concerns.

There seems to be confusion among the electrical and HVAC installers regarding who is responsible for the installation of the interconnecting wiring from the indoor unit(s) to the outdoor unit(s). According to the definition of an electrical installation found in RSA 319-C:2 III8, all of the wiring (with the exception of low-voltage thermostatic controls) associated with this system is to be installed by licensed electricians.

  Click here to view the NH amendments to the 2020 NEC  

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Ductless Mini-Split Wiring.

Below is a Real Question from our Electrical Continuing Education Courses for Electrical License Renewal:

In NH, who is responsible for the installation of the interconnecting wiring from the indoor unit(s) to the outdoor unit(s) for a ductless mini-split system?

A: According to the definition of an electrical installation found in RSA 319-C:2 III8, all of the wiring (with the exception of low-voltage thermostatic controls) associated with this system is to be installed by licensed electricians.
B: All of the wiring associated with this system is to be installed by licensed HVAC technicians.
C: All of the wiring associated with this system is to be installed by licensed specialty technicians.
D: The thermostat wiring associated with this system is to be installed by licensed electricians.
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