OBC 2006 › Division B
7.6.2.5.
Version 1 — in force 1 January 2010
This looks wrong
Tell us what is wrong and we will verify & correct our mapping.
- Edition
- OBC_2006
- Division
- B
- Provision
- 7.6.2.5.
- Version
- v1
240. (1) Subject to subsections (2), (3), (4), (5), (6) and (7), this Regulation comes into force on the later of January 1, 2010 and the day this Regulation is filed.
Read directly from the regulation's own commencement section.
O. Reg. 503/09 · commencement 240(1)
This version stayed in force until the next edition replaced it. What follows is that edition’s base regulation’s commencement — the takeover that ended this one.
(1) Subject to Sentences (2) and (3), this Regulation comes into force on January 1, 2014.
Read directly from the regulation's own commencement section.
O. Reg. 332/12 · commencement 4.4.1.1(1)
This looks wrong
Tell us what is wrong and we will verify & correct our mapping.
- Edition
- OBC_2006
- Division
- B
- Provision
- 7.6.2.5.
- Version
- v1
240. (1) Subject to subsections (2), (3), (4), (5), (6) and (7), this Regulation comes into force on the later of January 1, 2010 and the day this Regulation is filed.
Read directly from the regulation's own commencement section.
O. Reg. 503/09 · commencement 240(1)
This version stayed in force until the next edition replaced it. What follows is that edition’s base regulation’s commencement — the takeover that ended this one.
(1) Subject to Sentences (2) and (3), this Regulation comes into force on January 1, 2014.
Read directly from the regulation's own commencement section.
O. Reg. 332/12 · commencement 4.4.1.1(1)
Provenance
New in this edition — no OBC 1997 predecessor
Base · O. Reg. 350/06 · ext v0 →
O. Reg. 503/09, cl. 112 · ext ← current
In force 2010-01-01
OBC 2012 · continues as 7.6.2.5. — Pro
7.6.2.5. — Backflow from Buildings with a Solar Domestic Hot Water System
(1) Except as permitted by Sentence (2) and as provided in Sentences (3) and (4), a potable water system shall be protected against backflow where the heat transfer loop of a solar domestic hot water system is directly connected to the potable water system.
(2) Where the heat transfer loop of the solar domestic hot water system consists of direct flow-through of potable water only, protection against backflow is not required.
(3) A potable water system that is directly connected to a solar domestic hot water system that serves a residential occupancy within the scope of Part 9, shall be provided with a backflow prevention device selected in accordance with CSA F379.1, “Packaged Solar Domestic Hot Water Systems (Liquid-to-Liquid Heat Transfer) for All-Season Use”.
(4) Where a solar domestic hot water system includes a single wall heat exchanger and contains only a relatively harmless heat transfer fluid as described in CSA F379.1, “Packaged Solar Domestic Hot Water Systems (Liquid-to-Liquid Heat Transfer) for All-Season Use”, the backflow prevention required in Sentence (1) is permitted to be a dual check valve backflow preventer conforming to CAN/CSA-B64.3, “Backflow Preventers, Dual Check Valve with Atmospheric Port Type (DCAP)”.
Provenance
New in this edition — no OBC 1997 predecessor
Base · O. Reg. 350/06 · ext v0 → compare
O. Reg. 503/09, cl. 112 · ext ← current
In force 2010-01-01
OBC 2012 · continues as 7.6.2.5. — Pro