Subject 1206
September 14, 2012
SUMMARY OF TOPICS
The following changes in requirements to the Standard for Electric Commercial Clothes-Washing
Equipment, UL 1206, are being proposed:
1. Installation Clearances and Cycle Selection
STP BALLOTS AND COMMENTS DUE: October 15, 2012
UL’s goal is to have no interest category comprise more than one-third of the STP membership
balance. To improve the current balance for STP 1206, UL is looking for participants in the AHJ,
Commercial and Industrial User, Consumer, General, Government, and Supply Chain interest
categories. Definitions for these interest categories are available on the Standards STP Internet site:
http://www.ul.com/global/eng/pages/solutions/standards/developstandards/participation/
interestcategories/
If you are interested in applying for STP 1206 membership or are aware of potential candidates for this
STP, please contact the STP Project Manager, Amy.K.Walker@ul.com.
For your convenience in review, proposed additions to existing requirements are shown underlined and
proposed deletions are shown lined-out.
1. Installation Clearances and Cycle Selection
RATIONALE
Proposal submitted by: Michelle Andersen, UL LLC
The standard does not currently include specifics for the installation of appliances other than recessed
or wall-insert appliances during the Temperature Test. These appliances may be provided with
installation instructions defining the required clearances to all adjacent surfaces. Paragraph 36.11.1 and
Section 51 have been added to address the installation for the Temperature Test and outline the
installation instructions required for these appliances.
Additionally, the standard does not currently indicate how to handle dryers with more than one cycle
selection or where the cycle parameters can be adjusted. Paragraph 36.12 was revised to include
directions for testing with the cycle parameters that result in the highest temperatures.
PROPOSAL
36.11.1 An appliance, other than a recessed or wall-insert appliance, shall be placed on a horizontal
surface and located within an enclosure formed by three flat-black-painted, vertical surfaces of nominal
9.5 mm thick plywood. The spacings to each enclosure surface shall be as specified by the installation
instructions. If no spacings are specified in the installation instructions, the enclosure surfaces shall be
SUBJECT 1206
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SEPTEMBER 14, 2012
located as close to the back and both sides of the appliance as possible. The sides shall extend not less
than 610 mm beyond the physical limits of the front and the top of the appliance. Temperatures are to be
measured at points on the inside surface of the test enclosure.
36.12 An appliance intended to be operated in cycles is to be operated for successive operations of the
machine through the complete cycle dictated by the control. If the appliance has more than one cycle
selection or the cycle parameters may be adjusted, the complete program cycle(s) that results in the
highest temperature rises shall be used. A 4-min interval is to be allowed between successive cycles to
permit rearrangement of the clothes load. Hot water is to be supplied to the appliance at a temperature of
82°C (180°F), and both hot and cold water are to be supplied to the appliance at a pressure of 40 – 60
psi (276 – 414 kPa). If the appliance is intended to be drained to an opening above floor level, the outlet
of the hose from the drain pump is to be 36 in (914 mm) above the floor on which the appliance rests.
With the concurrence of those concerned, laundry detergent in accordance with the operating instructions
may be added to the appliance at the beginning of each cycle.
51 Installation Instructions
51.1 An appliance other than a recessed or wall-insert appliance shall be provided with installation
instructions that specify the required clearances to all adjacent surfaces.
Exception: The installation instructions need not specify clearances to all adjacent surfaces if the
appliance complies with the Temperature Test of 36 with the appliance installed so that the enclosure
surfaces are located as close to the back and both sides of the appliance as possible. See 36.11.1.
Copyright © 2012 Underwriters Laboratories Inc.
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