an ASHRAE Standard may be purchased from the ASHRAE Web site (www. ) or from .. , ANSI/ASHRAE , ANSI/ASHRAE ANSI/ ASHRAE Standard User’s Manual: Safety Standard for Refrigeration Systems (ASHRAE SP) [Donald L. Fenton, William V. Richards] on . From the editor In a previous newsletter, we discussed the application of ANSI/ ASHRAE. Standard 15, “Safety Standard for. Refrigeration Systems,” to large.

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Low-Stage or Booster Compressors: Freezing of tissue by contact with liquid. The quantity of refrigerant in each independent circuit of high probability systems shall not exceed the amounts shown in Table 1, except as provided in 7. The subtopics included in these major groupings are: Also, the total of all Group A2, B2, A3, and B3 refrigerants shall not exceed lb kg in the occupied areas and machinery rooms of institutional occupancies.

Gas fuel devices and equipment used with refrigerating systems shall asjrae installed in accordance with approved safety standards and the requirements of the authority having jurisdiction.

Files attached to e-mail: The sizing of the common discharge header downstream from each of the two or more relief devices or fusible plugs that are expected to operate simultaneously shall be based on the sum of their outlet areas with due allowance for the pressure drop in all downstream sections.

Interpretations To Standard

ashgae It is merely informative and does not contain requirements necessary for conformance to the standard. Electronic change proposals may be submitted either as files MS Word 6 preferred attached to an e-mail uuencode preferred or on 3.

The refrigerant shall be designated by the refrigerant number R number as shown in Table 1. Public assembly occupancies include, among others, auditoriums, ballrooms, classrooms, passenger depots, restaurants, and theaters.

Water supply and discharge connections shall be made in accordance with the requirements of the authority having jurisdiction. When requested, copies of this declaration shall be furnished to the authority having jurisdiction. Selecting proper respiratory protection for technicians or other responders, as mentioned above, is one reason.


Air duct systems of air-conditioning equipment for human comfort using mechanical refrigeration shall be installed in accordance with approved safety standards, the requirements of the authority having jurisdiction, and the requirements of 8.

Seats or discs of cast iron shall not be used. Walls, floor, and ceiling separating the refrigerating machinery room from other occupied spaces shall be of at least one-hour fire-resistive construction. Refrigerating systems shall be maintained by the user in a clean condition, free from accumulations of oily dirt, waste, and other debris, and shall be kept accessible at all times. Additions are shown in underline and deletions in strikethrough. Note that in some locations within the standard, normative references are also used as informative references.

The shaded item has been added since the previously published errata sheet dated January 31, was distributed.

If supplemental background documents to support changes submitted are included, it is preferred that they also be in electronic form as wordprocessed or scanned documents.

The pressure-relief asrhae that protects the higher pressure vessel shall be selected to deliver capacity in accordance with 9. Highsides of all water-cooled or evaporatively cooled systems: Relief valves for systems with design pressures of 15 psig Foundations and supports for condensing units or compressor units shall be of noncombustible construction and capable of supporting loads imposed by such units.

Reference 6 is mandatory satndard designers, manufacturers, and producers of refrigeration equipment. All awhrae connections shall be through the top of the tank only. Exterior openings, if present, shall not be under any fire escape or any open stairway.

ANSI/ ASHRAE Standard 15-2001 User’s Manual : Safety Standard for Refrigeration Systems

Such refrigerants have been chemically analyzed to verify that those specifications have been met. Page 3 Erratum Foreword. It includes specifications for fabrication of tight systems but does not address the effects of refrigerant emissions on the environment.

This standard is directed toward the safety of persons and property on or near the premises where refrigeration facilities are located. Electrical equipment and wiring shall be installed in accordance with the National Electrical Code4 and the requirements of the authority having jurisdiction.


Interpretations To Standard 15-2001

Shopbop Designer Fashion Brands. Access to the refrigerating machinery room shall be restricted to authorized personnel. Ammonia from pressure-relief valves shall be discharged into one or more of the following: Fire resulting from or intensified by burning or deflagration of escaping refrigerant or lubricant.

Refrigerating systems installed in a public corridor or lobby shall be limited to either a unit systems containing not more than the quantities of Group A1 or B1 refrigerant indicated in Table 1, or b sealed absorption and unit systems having refrigerant quantities less than or equal to those indicated in Table 2.

The space above a suspended ceiling shall not be included in calculating the refrigerant quantity limit in the system unless such space is part of the air supply or return system.

Refrigerants shall be of a type specified by the equipment manufacturer unless converted in accordance with 7. Systems that have a refrigerant pumpout function 152001 of storing the entire refrigerant charge, or are equipped with the provisions for pumpout of the refrigerant, or self-contained systems. Stxndard gt ] shall be greater than V gc b the system or vessels being protected have been depressurized and are vented to the atmosphere.

A sign distinguishes the current-reading indicator from the alarmactivation indicator required by 8. The means used to build up the test pressure shall have either a pressure-limiting device or a pressure-reducing device and a gage on srandard outlet side. In cases specified in the rules of 7. To correct for height, h mkmabove sea level, multiply these values by 1 — 7. When required by the authority having jurisdiction, manual emergency discharge or diffusion arrangements for ammonia refrigerants shall be provided.

A default value is the atmospheric pressure at sea level,