(See also Article 9.33.5.3.)
(1)
The design and installation of earth energy systems shall conform to CAN/CSA-C448.2, “Design and installation of earth energy systems for residential and other small buildings,” where such systems use groundwater, submerged heat exchangers or ground heat exchangers to serve,
(a)
a house with or without a secondary unit, or,
(b)
a building, other than a house with or without a secondary unit, where the conditioned space is not more than 1 400 m².
(2)
Except for a house with or without a secondary unit, the design and installation of earth energy systems shall conform to CAN/CSA-C448.1, “Design and installation of earth energy systems for commercial and institutional buildings,” where such systems use groundwater, submerged heat exchangers or ground heat exchangers to condition a floor space area more than 1 400 m².