ANSI Z21.5.2-1998/CSA 7.2-M98
Gas Clothes Dryers - Volume II - Type 2 Clothes Dryers
Product Details
This publication represents a basic standard for safe operation, substantial and
durable construction, and acceptable performance of gas type 2 clothes dryers. It is the result of
years of experience in the manufacture, testing, installation, maintenance, inspection and research on
gas clothes dryers designed for utilization of gas. There are risks of injury to persons inherent in
appliances that, if completely eliminated, would defeat the utility of the appliance. The provisions in
this standard are intended to help reduce such risks while retaining the normal operation of the
appliance.
Nothing in this standard is to be considered in any way as indicating a measure of
quality beyond compliance with the provisions it contains. It is designed to allow compliance of type
2 gas clothes dryers, the safety construction and performance of which may exceed the various
provisions specified herein. In its preparation, recognition has been given to possibilities of
improvement through ingenuity of design. As progress takes place, revisions may become necessary.
When they are believed desirable, recommendations or suggestions should be forwarded to the
Chairman of Accredited Standards Committee Z21/83, 8501 East Pleasant Valley Road,
Cleveland, Ohio 44131, or the Chairman of (Interim CSA) Gas Equipment Standards Steering
Committee, 178 Rexdale Boulevard, Etobicoke, Ontario, Canada M9W 1R3.
Safe and satisfactory operation of type 2 gas clothes dryers depends to a great
extent upon its proper installation, use and maintenance. It should be installed, as applicable, in
accordance with the National Fuel Gas Code, ANSI Z223.1; the Natural Gas Installation Code,
CAN/CGA-B149.1; the Propane Installation Code, CAN/CGA-B149.2.
Users of this American National Standard/CSA Standard are advised that the
devices, products and activities within its scope may be subject to regulation at the Federal,
Territorial, Provincial, state or local level. Users are strongly urged to investigate this possibility
through appropriate channels. In the event of a conflict with this standard, the Federal, Territorial,
Provincial, state or local regulation should be followed.
Scope
1.1.1 This standard applies to newly produced type 2 clothes dryers (see Part IV, Definitions) hereinafter referred to as dryers, constructed entirely of new, unused parts and materials:
(a) For use with natural gas;
(b) For use with manufactured gas;
(c) For use with mixed gas;
(d) For use with liquefied petroleum (propane) gases; and
(e) For use with LP gas-air mixtures.
The construction of dryers for use with the above-mentioned gases is covered under Part I.
The performance of dryers for use with the above-mentioned gases is covered under Part II.
1.1.2 This standard also covers all electrical equipment, wiring and accessories built in or supplied for use with the dryer. It covers only dryers whose electrical equipment, wiring and accessories are intended to be installed in accordance with the National Electrical Code, ANSI/NFPA 70 or Canadian Electrical Code, CSA C22.1. This standard covers dryers having supply voltage ratings of 120, 208, 240, 277 or 480 volts.
1.1.3 If a value for measurement as given in this standard is followed by an equivalent value in other units, the first stated value is to be regarded as the specification.
1.1.4 Special construction provisions applicable to a clothes dryer designed for use with an optional listed conversion kit are outlined under Exhibit C, (Optional) Provisions for Listed Gas Appliance Conversion Kits.
1.1.5 All references to psi throughout this standard are to be considered gage pressures unless otherwise specified.
1.1.6 Exhibit D contains a list of standards referenced in this standard, and sources from which these reference standards may be obtained.
1.1.7 Exhibit A, Items Unique to the United States, and Exhibit B, Items Unique to Canada, include coverage for electrical equipment, wiring and accessories built in or supplied for use with the dryer.