OESC 210.63 Heating, Air Conditioning, and Refrigeration Equipment Outlet.

Newer installations will have the required service receptacle. Replacements of existing HVAC equipment on an older home may not.
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Newer installations will have the required service receptacle. Replacements of existing HVAC equipment on an older home may not.

NEC Section 210.63 states the following:

A 125-volt, single-phase, 15- or 20-ampere-rated receptacle outlet shall be installed at an accessible location for the servicing of heating, air-conditioning, and refrigeration equipment. The receptacle shall be located on the same level and within 7.5 m (25 ft) of the heating, air-conditioning, and refrigeration equipment. The receptacle outlet shall not be connected to the load side of the equipment disconnecting means.

Exception: A receptacle outlet shall not be required at one- and two-family dwellings for the service of evaporative coolers.

Oregon’s amendment to this section adds another exception as follows:

Exception No. 1: A receptacle outlet shall not be required at one- and two-family dwellings for the service of evaporative coolers.

Exception No. 2: An additional receptacle outlet shall not be required to be installed when replacing existing HVAC equipment if a receptacle outlet is located on the same level and within 75 feet.

Oregon amendments to the 2020 NEC® are located in “Table 1-E” of the Oregon Electrical Specialty Code (OESC) which can be seen using the following link or the OESC PDF file located near the bottom of the screen: https://www.oregon.gov/bcd/codes-stand/Documents/21oesc-table1-e-2021April.pdf

  Click here to review the OESC  

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OESC 210.63 Heating, Air Conditioning, and Refrigeration Equipment Outlet.

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

Which of the following is true when replacing existing HVAC equipment at a location where there is no maintenance receptacle within 25 feet of the existing unit?

A: A new maintenance receptacle can be installed adjacent to the HVAC unit and connected to the load side of the HVAC unit disconnecting means.
B: An additional receptacle outlet is not required to be installed when replacing existing HVAC equipment if a receptacle outlet is located on the same level and within 75 ft.
C: A maintenance receptacle is not required if only replacing an existing unit.
D: A maintenance receptacle must be installed within 25 ft. of a new dwelling unit evaporative cooler.
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