Code of Massachusetts Regulations › 225 CMR - DEPARTMENT OF ENERGY RESOURCES › Title 225 CMR 23.00 - Massachusetts Front-end Amendments to the International Energy Conservation Code 2021 Massachusetts Stretch Energy Code - 2023 Commercial Amendments to IECC2021 › Chapter 5 - [CE] EXISTING BUILDINGS › Section CC106 - WIRING FOR FUTURE ELECTRIFICATION

Current through Register 1525, July 5, 2024
CC106
Add Section CC106 as
				  follows
:
CC106.1
Additional Electric Infrastructure.
All
combustion
				equipment
and end-uses shall be installed in accordance with this
				section
.
Capacity for the future electric circuits required in
				this section shall be included in the load calculations of the original
				installation of electric service to the building, and each
dwelling
				unit
for R-use buildings or portions thereof.
CC106.1.1
Electric Infrastructure for
				Dwelling and Sleeping Units
.
Combustion equipment
and
				end-uses serving individual
dwelling units
or
sleeping
				units
shall comply with Section RC104.4.3 Electric
				Readiness.
CC106.1.2
Combustion Water Heating Equipment
. Gas-fired or oil-fired water
				heaters with a capacity less than 300,000 Btu/h (88 kW) shall be installed in
				accordance with the following:
1. A dedicated
				208/240-volt branch circuit with a minimum capacity of 30 amps shall terminate
				within three feet (914 mm) from the water heater and be accessible to the water
				heater with no obstructions. Both ends of the branch circuit shall be labeled
				with the words "For Future Heat Pump Water Heater" and be electrically
				isolated,
2. A condensate drain
				that is no more than two inches (51 mm) higher than the base of the installed
				water heater and allows natural draining without pump assistance shall be
				installed within three feet (914 mm) of the water heater,
3. The water heater shall be installed in a
				space with minimum dimensions of three feet (914 mm) by three feet (914 mm) by
				seven feet (2134 mm) high, and
4.
				The water heater shall be installed in a space with a minimum volume of 700
				cubic feet (20,000 L) or the equivalent of one 16-inch (406 mm) by 24-inch (610
				mm) grill to a heated space and one eight-inch (203 mm) duct of no more than
				ten feet (3048 mm) in length for cool exhaust air.
CC106.1.3
Cooking Ranges, Ovens and
				Cooktops
. An individual branch circuit outlet with a minimum rating of
				250-volts, 40-amperes shall be installed within three feet of each gas or
				propane range or any permanently installed
combustion
				equipment
oven or cooktop.
Exception
: Commercial kitchens for cafeteria,
				  restaurant or commercial catering business use.
CC106.1.5
Other combustion
				equipment
.
Combustion equipment
not covered by Sections
				CC106.1.1 and CC106.1.4 and within buildings having average ventilation at full
				occupancy of 0.5 cfm/sf or less shall be provided with conduit that is
				continuous between a junction box located within 3 feet (914 mm) of the
appliance
or
equipment
and an electrical
				panel. The junction box, conduit and bus bar in the electrical panel shall be
				rated and sized to accommodate a branch circuit with sufficient capacity for an
				equivalent electric appliance, equipment or end use with an equivalent
				equipment capacity. The electrical junction box and electrical panel shall have
				labels stating, "For future electric equipment".
CC106.1.6
Other
combustion equipment
, highly ventilated
				buildings
.
Combustion equipment
not covered by Sections
				CC106.1.1 and CC106.1.4 and within buildings having average ventilation at full
				occupancy of greater than 0.5 cfm/sf shall comply with Section CC106.1.6.1
				through CC106.1.6.5.
CC106.1.6.1
HVAC
				Design and Installed Associated Electric Service
. An all-electric HVAC
				retrofit design shall be prepared by the HVAC engineer for approval by the
				authority having jurisdiction. The electric service installed with the building
				shall be sufficient to accommodate the all-electric HVAC retrofit design. The
				contract documents shall show future replacement of
combustion
				equipment
based HVAC system with an equivalent all-electric system.
				Contract documents shall show
combustion equipment
to be
				replaced, future electric equipment, supporting electric, structural, and
				architectural infrastructure to be installed during building construction, and
				space allotments for future equipment.
CC106.1.6.2
Heating, Ventilation, and
				Air Conditioning (HVAC) Compatibility
. HVAC design shall ensure that
				air, water, or other systems serviced by
combustion equipment
can also be serviced by future electric retrofit equipment without having to
				upgrade, alter, or update such systems.
CC106.1.6.3
Equipment
				Efficiencies
. Electric retrofit equipment used for space and water
				heating shall conform to Section C401.4.3.
CC106.1.6.4
Installed Infrastructure.
Infrastructure shall be installed as part of building construction to
				accommodate future electric retrofit in order to minimize cost and disruption
				during retrofit. Infrastructure to be installed as part of building
				construction shall include, but is not limited to, power infrastructure to the
				building to accommodate future electric retrofit system, electric service to
				future distributed equipment within the building, conduits to accommodate
				controls to future distributed equipment within the building, and structural
				and architectural elements to accommodate future retrofit equipment.
CC106.1.6.5
Space for Future Retrofit
				Equipment
. Interior and exterior space shall be allotted to accommodate
				all future electric retrofit equipment. Where interior or exterior allotted
				space exceeds the space used for
combustion equipment
to be
				replaced, and/or does not correspond to the
combustion
				equipment
locations to be replaced, such space shall be set aside and
				may not be used for any other purpose. Signage, labels, and borders shall be
				used to prominently display areas and limits set aside for future equipment to
				prevent encroachment.