Further to your questions, here are the references for discussion:
Section 4 is only about "Classifications" of different equipment configurations. The only exception in section 4 is with a hybrid that is not a solar collector under F-378.
Quote:
4.1 General
In this Standard, solar domestic hot water systems are classified according to
(a) their ability to be combined with non-solar sources of energy; and
(b) the relationship of their various components.
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Section 6 is only about "Construction Requirements". There is no sense to that reference until later:
Quote:
6.1 General
All openings into tanks (except vents) shall be tightly covered and secured in place. Vents shall be screened
with corrosion-resistant material having at least 8 openings per linear centimetre.
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Quote:
6.4 Collectors
6.4.1
Solar collectors shall meet the requirements of CAN/CSA-F378. The thermal performance test is not
required unless this Standard requires the results of that test.
6.4.2
Solar collector connections shall be designed to withstand the test temperature used for testing the
collector absorber according to the requirements of CAN/CSA-F378, when tested according to the
procedures in Clause 8.3 of this Standard.
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Unfortunately, the bottom line is: - the inspector is looking for a CSA label on the solar collector to pass it.
