ETL Listed

[qcroanoke]

Intertek ETL Listed to Standard for Safety Heating and Cooling Equipment ANSI/UL
1995/CSA 22.2 No. 236-05, Fourth Edition.
Inspectors and others,
If you saw this on a wall mounted HVAC unit but there was no UL label, would you accept this?

From FAQ page on ETL site:

Do local inspectors know the ETL Listed Mark?
Yes. Inspectors and the Authorities Having Jurisdiction recognize and accept the ETL Mark as proof of product compliance throughout North America and in some areas of South America.



Will retailers accept my product if it bears the ETL Listed Mark?
Yes. Our product safety certification program includes the same testing, listing, labeling, and follow-up inspection services as competing certification marks (such as UL, CSA, and others), and our lab is accredited by the same organizations, agencies, and regulatory bodies.

 

[mgookin]

The most I would do is look up UL 1995.
I see it's http://ulstandardsinfonet.ul.com/scopes/scopes.asp?fn=1995.html
Of course if I was a HVAC inspector I'd probably already know that.

 

[roger]

ETL is recognized in NC. See the list of approved NRTL's for NC at the link below

http://www.ncdoi.com/OSFM/Engineeri...ces/ElectricalMechanicalEquipmentLabeling.pdf

Roger

 

[augie47]

ETL is recognized as a NRTL by OSHA and many, if not all, jurisdictions. A "wall mounted" unit is often what we call mini-splits and, despite the ETL label, there is a gambit of pitfalls to watch for. Some manufacturers show using a rubber cord for
interconnection, often TC gets into the picture and often on the systems with multiple evaporators the OCP at the condenser is larger than the interconnect conductor ampacity. I have a number of communications with ETL concerning the "installation" instructions but little resolution to the problems therein.

 

[qcroanoke]

ETL is recognized as a NRTL by OSHA and many, if not all, jurisdictions. A "wall mounted" unit is often what we call mini-splits and, despite the ETL label, there is a gambit of pitfalls to watch for. Some manufacturers show using a rubber cord for
interconnection, often TC gets into the picture and often on the systems with multiple evaporators the OCP at the condenser is larger than the interconnect conductor ampacity. I have a number of communications with ETL concerning the "installation" instructions but little resolution to the problems therein.

No, the wall mounts we use are self contained units (all parts are in the enclosure) supply and return are through the wall.
Bard, Marvair, Liebert are a few we use.
Recently we were involved in a peeing contest with an inspector in North Carolina who refused to recognize the ETL listing on the redundant controller for the units. From what I understand the state backed him up on it. (just what I was told) I don't know it to be a fact.
The mfgr. ended up getting it UL listed because of the inspector.

 

[mgookin]

.... I have a number of communications with ETL concerning the "installation" instructions but little resolution ....

For them to approve those installation instructions they want to see the specs (voltage/ frequency/ VA or amps) and they want to see some sort of instruction which is not going to cause a hazard.

Keep in mind that when something gets listed, it's protecting against electrocution and fire. It's not a quality control and it's not consumer protection in the economical sense.

I was doing CEU's in a class 20 years ago and a UL engineer says that if you buy a UL Listed toaster, he doesn't care if it ever makes toast or not. He only cares if it electrocutes you or catches fire. The "underwriters" in UL is the insurance companies. They lobby legislatures to compel manufacturers to undergo safety testing before putting product on the market. Follow the money!