Summary of Requirements s9
October 6, 2005
SUMMARY OF REQUIREMENTS
The following is a brief summary of the new and revised paragraphs in the Standard for Decorative Gas Burning Appliances For Installation In Solid-Fuel Burning Fireplaces, ANSI ANSI Z21.60-2003/CSA 2.26-2003, ANSI Z21.60a-2003/CSA 2.26a-2003 and ANSI Z21.60b-2004/CSA 2.26b-2004, which have a future Effective Date of October 6, 2006 and the action that may be required to determine compliance.
Paragraphs / General Subject and Comment1.19.2 / A test gage connection shall be furnished downstream from the last main line gas control for measuring gas pressure at the burner. The connection shall be a minimum 1/8-inch NPT plug or cap with cleanly cut taper pipe threads in accordance with the Standard for Pipe Threads, General Purpose (Inch), ANSI/ASME B1.20.1. If the plug is of the slotted type it shall also incorporate square or hex flats, or;
When the pressure tap is provided as part of the control this pressure test gage connection shall be:
a. A tapping sealed by a 1/8 inch NPT plug or cap with cleanly cut taper pipe threads in accordance with the Standard for Pipe Threads, General Purpose (Inch), ANS/ASMEB1.20.1. If the plug is of the slotted type, it shall also incorporate square or hex flats; or
b. A hose fitting with a minimum length of 0.355 inch (9.02 mm) and a 0.355 inch (9.02 mm) maximum 0.335 inch (8.05 mm) minimum outside diameter and which incorporates a sealing means. The construction of the hose fitting shall incorporate an internal restriction not greater than 0.0394 inches (1.0 mm) in diameter.
SUMMARY OF OTHER REVISIONS
The items below are not a part of this review, but are only intended to advise all concerned of other revisions made to this standard.
Paragraphs / General Subject and Comment1.1.1, d and e / Adds to the scope to cover the installation of a decorative appliance in a manufactured (mobile) home for use with natural and propane gases.
1.2.10, 1.14.1-j, 1.15.9, and Part IV, Definitions / Describes additional requirements to coincide with added coverage for the installation of a decorative appliance in a manufactured (mobile) home.
The following is a brief summary of the new and revised paragraphs in the Standard for Decorative Gas Burning Appliances for Installation in Solid-Fuel Burning Fireplaces, ANSI Z21.60b-2004/CSA 2.26b-2004, Second Edition, which has a future Effective Date of August 31, 2005 and the action that may be required to determine compliance.
Paragraphs / General Subject and Comment1.1.1 / Clarifies that the appliance input rating can be up to and including 400,000 Btu per hour.
1.7.1.c / Adds requirements in Automatic Gas Ignition Systems for proved igniter systems.
Paragraphs / General Subject and Comment
1.14.1 / Requires that the printed instructions include a boxed statement on the front cover as follows:
INSTALLER: Leave this manual with the appliance.
Consumer: Retain this manual for future reference.
SUMMARY OF OTHER REVISIONS
The items below are not a part of this review, but are only intended to advise all concerned of other revisions made to this standard.
Paragraphs / General Subject and CommentSection 2.8 / Changes title of “Automatic Gas Ignition Systems” to “Proved Ignition Systems” and includes requirements for such devices.
2.9.5 / Clarifies that a system incorporating flame-failure reignition shall be reenergized in not more than 0.8 second following flame outage, and the ignition means shall reignite the main burner gas without flame flashout or damage to the appliance..
Part IV, Definitions / Add definitions for “Igniter Failure Response Time”, “Pilot Flame Establishing Period” and “Ignition Source – Intermittent – Interrupted”.
Revises definitions for “Flame Failure – Reignition”, Flame Failure Response Time”, “Lockout Time” and “Ignition Source – Interrupted”.
Table VII / Adds a Maximum Safety Control Timings table.
Transfer of “Decorative Gas Appliances for Installation in Solid-Fuel Burning Fireplaces” to (EOIM/EOIM7) Category
At the present time, some Decorative Gas Appliances for Installation in Solid-Fuel Burning Fireplaces are Listed in the Specialty Heating Appliances (LVTT/LVTT7) category. These products are now being covered under UL’s “Decorative Gas Appliances for Installation in Solid-Fuel Burning Fireplaces” (EOIM/EOIM7) Category. The Guide Information Pages for this category states that the standard used for the evaluation of these products is the current edition and effective addenda thereto of ANSI ANSI Z21.60/CSA 2.26, " Decorative Gas Burning Appliances for Installation in Solid-Fuel Burning Fireplaces."
Products currently under the Specialty Heating Appliances (LVTT/LVTT7) category will need to be evaluated to the latest edition of this standard prior to being transferred into the (EOIM/EOIM7) category. UL has established an effective date of October 6, 2006 by which time all products will be transferred. Listings of those products that are not transferred to the new category will be withdrawn.
New UL Gas-Fired Listing Mark
In response to input from manufacturers, consumers, and regulatory authorities, UL has developed a Listing Mark specific to gas-fired products. Effective with the completion of this industry review, gas-fired products certified to the latest editions of the standards noted above and all addenda will be eligible to bear the new UL Gas-Fired Listing Mark. For more specific information on this mark please see http://www.ul.com/gas2/overview.html .
If you have a supply of UL Listing Marks, you will be permitted to continue to use existing inventory of these UL Marks until the established effective date. Upon inventory depletion and determination of compliance prior to the effective date, the new UL Gas-Fired Listing Mark should be used.
These changes will result in your products being widely accepted in the market place by customers and regulators as complying with nationally recognized safety standards for gas-fired equipment.