HVAC equipment in UL508A vs UL1995

[pisani168]

Can somebody explain to me why UL508A lists HVAC equipment in section 88 but then we have UL1995 which is far less strict than 508A.

If I want to yell at a manufacturer, which standard do I refer too? The equipment was built in 2006 and I cannot find any UL label on it. The OEM is a global player for chillers and HVAC’s.

 

[electrofelon]

Can somebody explain to me why UL508A lists HVAC equipment in section 88 but then we have UL1995 which is far less strict than 508A.

If I want to yell at a manufacturer, which standard do I refer too? The equipment was built in 2006 and I cannot find any UL label on it. The OEM is a global player for chillers and HVAC’s.

Not real familiar with these UL standards, but 508A is industrial control panels and 1995 is HVAC equipment. I would think both could apply to an HVAC unit.

 

[don_resqcapt19]

Can somebody explain to me why UL508A lists HVAC equipment in section 88 but then we have UL1995 which is far less strict than 508A.

If I want to yell at a manufacturer, which standard do I refer too? The equipment was built in 2006 and I cannot find any UL label on it. The OEM is a global player for chillers and HVAC’s.

If it doesn't have a listing label from a testing organization, why would you expect it to be in compliance with any published standard. The listing label only tells you that the product is in compliance with a specific listing standard.

 

[Jraef]

UL508A lists HVAC equipment in section 88…

That just means that if you build an industrial control panel that must include an air conditioner, a listed air conditioner is allowed under UL508A. It does not mean that you would apply a UL508A label to an air conditioner itself (although you might do so to the control panel for one).

 

[pisani168]

If it doesn't have a listing label from a testing organization, why would you expect it to be in compliance with any published standard. The listing label only tells you that the product is in compliance with a specific listing standard.

enforcement of corporate policies and internal standards.

 

[petersonra]

Section 88 is one of the special control panel sections. If you build a control panel for HVAC equipment it has to meet all the general requirements plus those found in this section. There are several such sections.