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I followed-up with my ESA contact he sent this to me.
The reporting web site is – https://www.esasafe.com/electricalproducts/reporting-an-incident/electrical-incident-report
And a contcat person –
Dan Cheddi
Harm Mitigation Technologist
Electrical Safety Authority
155A Matheson Blvd. West, Mississauga, ON L5R 3L5
Tel: 905-712-7834
dan.cheddi@electricalsafety.on.ca
Jon
You could try the local ESA inspector
I communicated with ESA, October of 2018 and that time the local inspector had the issue taken over by ESA Product Safety division.
Darren
OBC states to cove unless 3.2.5.14 (5) is meet
according to Blazemaster
Exposed Installation- General (UL & C-UL)
In accordance with the UL and C-UL Listings, BlazeMaster pipe and fittings
may be installed without protection (exposed), subject to the following
additional limitations:
Note: NFPA standards permit the omission of automatic sprinklers in areas
such as small closets and bathrooms. Where sprinklers are not required,
and when approved by the authority having jurisdiction, it is acceptable
to install BlazeMaster products exposed in these areas.
Note: Where piping is required to be mounted directly to the ceiling/wall,
the use of listed hangers for thermoplastic sprinkler piping mounted directly
to the ceiling/wall is permitted. The resulting clearance between
the pipe and the ceiling/wall as a function of using the listed hanger is
acceptable.Page 8     Link to full document –    https://www.tyco-fire.com/TFP_common/BlazeMasterGuideIH_1900.pdf
Read Page 10 an more for the installation
The exposed installation is more involved
The one question is this a NFPA 13 , 13D or 13R install can change the requirements
Charles
I would refer back to NFPA 13R Standard for installation of sprinklers systems in residential occupancies up to and including four stories in height 2010 edition
Chapter 5 System components – section 5.2 Above ground Piping And Equipment that refers to the table 5.2.1 or accordance to 5.2.2
Table 5.2.1 speaks to the pipe being made of a metal. Where 5.2.1.3 When nonmetallic pipe is used, the pipe shall be designed to withstand a working pressure of not less than 175 psi (12.1 bar) at 120F (49C)
and 5.2.2 Types of pipe other than those specified in Table 5.2.1 shall be permitted to be used where listed for sprinkler system use.
And read on in section 5.2.2
I short if the owner could prove that the pipe meets the NFPA criteria then yes