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HVAC Forums => Technical Information => Topic started by: preetnep on December 21, 2015, 08:04:17 PM

Title: Residential duct humidifiers and Saddle Valves
Post by: preetnep on December 21, 2015, 08:04:17 PM
Hi
I m just wondering if one has to be 313 d licensed or G2 l8censed to install a humidifier ?
Title: Re: Residential duct humidifiers
Post by: Admin on December 22, 2015, 08:02:17 AM
Regarding a gas furnace, technically you would need to be a G1, G2 or G3 as you will be modying the duct work which is by definition part of the appliance.  You would also be installing low voltage wiring inside the furnace.

From O. Reg 212/01,

QuoteCertificates required for various activities
6.  (1)  No person shall install, alter, purge, activate, repair, service or remove any appliance, equipment or other thing employed or to be employed in the handling or use of gas unless the person is the holder of a certificate for that purpose.  O. Reg. 212/01, s. 6 (1).
Title: Re: Residential duct humidifiers
Post by: preetnep on December 22, 2015, 08:19:49 AM
It means 313d can't do it.
Title: Re: Residential duct humidifiers
Post by: Porcupinepuffer on December 22, 2015, 02:05:42 PM
I wonder with connection of the water supply line what we're allowed and not allowed to do. Since saddle valves are not allowed by building code (even tho 95% of all humidifiers are installed with one), I wonder if we need to be a plumber to then solder in a proper connection for the valve if one isn't already available?
Title: Re: Residential duct humidifiers
Post by: Admin on December 22, 2015, 02:13:07 PM
Do you know where in the OBC it says that?  I have been looking and never could find anything about saddle valves.
Title: Re: Residential duct humidifiers
Post by: Porcupinepuffer on December 24, 2015, 11:31:30 AM
7.2.10.5. Saddle Hubs
Title: Re: Residential duct humidifiers
Post by: Admin on December 24, 2015, 12:23:18 PM
Thank you!

Quote7.2.10.5. Saddle Hubs
(1) Except as provided in Sentence (2), a saddle hub or fitting shall not be installed in drainage systems, venting systems or water systems.

(2) A saddle hub or saddle clamp may be installed in a building drain or building sewer of nominal diameter not less than 8 in. and that is in service provided that the connecting branch is at least two pipe sizes smaller than the run of the building drain or building sewer to which it is connected.

I bet only a plumber is certified to install a proper water valve.  I know in new construction the water valve is installed by them.
Title: Re: Residential duct humidifiers and Saddle Valves
Post by: walker on December 26, 2015, 10:32:22 AM
I don't think they're talking about the same thing when they say saddle hub.  saddle hubs are for water drainage, and not water supply.
Title: Re: Residential duct humidifiers and Saddle Valves
Post by: Admin on December 26, 2015, 11:06:31 AM
I thought the same thing when I first looked through the OBC.  After Porcupinepuffer posted the Code reference, I re-read it and it does sound like it would apply to saddle valves.

Article 7.2.10.5(1) does refer to saddle fittings installed in water systems.

The Code defines a water system;

QuoteWater system means a water service pipe, a private water supply, a water distribution system, a fire service main or any part of any of them.