For this reason, ammonia is classified as very toxic to aquatic life. ?���d^ඍ��CO����ӟ�q$^&~O?_A��|��^��vޤ������,��ZV�v�z��2F�N��^�R�y!>!�,�N;s�����a!�98���9�8���4�h�q���6��h�y��1ea����U�5?ȫ;�}�Z�M��Yϻj�;5TmC/�~�+�L�8�0���^9�Ǽ/�aC�D����B7�ޕ��S�����G��ؤ�G���u����鵜>\�"%�p�4�E��J`a��E�D�cd~|������>�?6U�=�fF�jUͫ�\��41Q\�O f��^*E9���I�^e% �"��~,�y Exposure to 300 ppm is immediately dangerous to life and health. �^R�t+1P�2|�����;��X7�}�3�O�$� Ammonia is a natural refrigerant that has been used for many years in a variety of applications due to its high thermal efficiency. Refrigeration System Change Procedures A. Mechanical integrity 3. Weld joints that are tacked in place and exposed to the elements during construction. Operating procedures 4. Ammonia is a gas with a distinctive pungent odour which can normally be detected by smell at concentrations as low as 5 parts per million (ppm). Boost charging is not recommended except in exceptional circumstances e.g. 1455 0 obj <> endobj Open the charging cylinder hand valve and dump in the refrigerant into both the high and low side of the system. Already the concentration of 1 mg/l may kill fish. The main use of refrigeration plants on ships is to keep cargo and food provisions at low temperature to prevent them from spoiling. • Installation is greatly simplified because the compact skid unit is factory build and tested • Plug & play design allows for simple & quick retrofits This page describes some inspection and testing procedures, work practices, and hose selection criteria to ensure the safe transfer of ammonia. The liquid ammonia load-in app helps standardize Standard Operating Procedures (SOPs) for ammonium unloading, helping to minimize the risks associated with moving hazardous materials like ammonia. Policies and procedures detailing how to safely operate and maintain the refrigeration system including the safe use, handling and disposal of ammonia. x�b```"v��� �� CO2, AMMONIA, R134a (Car A /C), HFO-1234yf Tools AIR CONDITIONER CLEANING MEASURING TOOLS REFRIGERANT SERVICE TOOLS 63 R134a Vapor recovery 120g/min Auto "Fluorocarbons Recovery and Destruction "compliant machine Refrigerant Cleaner h��Sߋ1�W�X�$�_8��l��{�iЀ�����w&����E�X�lfg&3߷_F�A�2� jņ%ñ�@W� ������[�o�n�� �?���hW��ø���ršJܥ.��x� h2�u;l�n��j��8y,�q^'䆊�})��q�D0�����i�c�ϺnFJ��)&).r�%>����ŴM�o�U��ܥR�Q������#x���{@���u��yoۏ���[�Y��u�O��o��*�_؞;0)]HM�9��+1=� �(�N(:��EP2�� 2.2This standard shall apply only to closed- circuit mechanical refrigerating systems utilizing ammonia as the refrigerant. 2. The process most commonly used is the Harber-Bosch method. Ammonia and its decomposition products are nutrients that make water systems eutrophic. h�bbd``b`�� B H0ՁĄ�D03�X�������b``�J���� � �� The Low Charge Ammonia Refrigeration System has a capacity up to 75 tons while still maintaining a less than EPA regulated 100 lbs of ammonia. 0000001317 00000 n %%EOF 0000001062 00000 n Safe Management of Ammonia Refrigeration Systems –May 2017 in Grantham Slide 3 PSM –The Tools 1. y 26 0 obj <> endobj Below are some of the characteristics of . According to the Safety Data Sheet (SDS) for . The app covers the shut-off valve status, ammonia refrigeration levels, protective equipment, cargo hoses and … )�r�B{&/��e����-�T>�MyևnGN�U��\���[I���z�v�oX�`i<. 1469 0 obj <>stream Draft Information Request Form B. 0000000016 00000 n The draining of oil from and addition of oil to ammonia refrigeration systems are routine maintenance procedures. In the absence of the proper valve, the charging can occur via a line which connected to the low-pressure side of the ammonia system. Training 5. &��*T�� %PDF-1.5 %���� Draft Policy B. �,;o1�80��$�,U�Hr%.2�T�f.�,�hF�j��n�c��&5O�N.�J�T$�2ƣ@z8��n&P����J�J)����[kXL�V�5Lg�Q=��c�>��1���o2�060�x t����a����E���0������$��~ ��� 8c4� endstream endobj startxref 0000037456 00000 n Ammonia. h�b```�Pfn>!�� !G���+\�(+x[����T��01�[ R��lJ*�/� �L=��� xZ�bL�np�azɰ�AW��� ��N�/X�f8�8050.a��`q�+�aC]�| �o�P�ʺ]�.M{�����m ���m����� И�VMц�@�b0�1$�h!f 0 Improper procedures when purging non-condensables into Ammonia may also form explosive compounds with gold, silver and mercury as well as their compounds. 0000002711 00000 n safety laws for anhydrous ammonia refrigeration system operators. ��/��ꆦP��� ==��˓\)�4q��P�(�� � �o``g��� �=�,����o�;d�Ø{��I�����$�JC��s* Most ammonia leaks are small and do not pose serious health risks. Steps to charge Ammonia refrigerant. Contractors 10. %PDF-1.4 %���� Plans for testing and replacing safety equipment, such as monitors and alarm systems, detection equipment, radios, eye washes, respiratory and skin protection equipment, and first aid kits. Anhydrous ammonia is the liquid form of pure ammonia gas, technically water-free, and the substance used universally as an industrial refrigerant. 45 0 obj <>stream 0000075754 00000 n 12. 2.3This document does not address the Condensation in the piping during construction. procedures are contained in this document, or that additional ... 5.6 Charging Procedure..... 17 5.7 Testing of Protective Devices..... 18 6.0 INSPECTION AND MAINTENANCE ... ammonia refrigerant vapor and discharging to the suction system of a higher stage compressor. Commander (or their designee) will be in charge of the response and direct any evacuation of the ... alarms or emergency response procedures, updated training for all involved personnel will be conducted at the time of the changes. Commercially, ammonia is made by combining free nitrogen and hydrogen gases under high pressure and temperature in the presence of a catalyst. PN10942 Version 2 Last updated February 2018 - Emergency planning for ammonia-based refrigeration systems guide Page 4 of 19 Introduction Under the Work Health and Safety Act 2011 (WHS Act), all workplaces must prepare an effective emergency plan for the workplace. Allow the suction pressure gauge to fall to approximately 35kPa and then close the charging valve. Information 2. 2. When disconnecting the ammonia cylinder and hose from the charging valve, first slacken the flange bolts to allow the ammonia in the hose to escape or pump down. h:w��C��'OILQ�9MW��}�Rٛ]���q�>��������sˏaAӝ��>W�WzT�$�rW-�������v. The reefer plant is a combination of various machines such as compressor, valves, heat exchangers etc., which are connected to each other through pipes and joints. Testing Facilities Testing is a fundamental requirement to researching and developing fully rated packaged low charge ammonia refrigeration systems that are ultra-reliable and efficient. Since ammonia is environmentally benign, having zero (GWP) and zero (ODP) characteristics, ammonia is emerging as one of … %%EOF 0000002519 00000 n Wait about 10-15 minutes so that refrigerant settles down at liquid receiver. STANDARD OPERATING PROCEDURE. ��"��X�D���:��G��-�1���Xm 0O��xO{&�. Open the liquid receiver outlet valve and the plant is then ready for normal operation. startxref a stranded customer, as this will reduce battery life, especially if a battery is boost-charged more than once. This manual contains only general information on the physical properties, storage, and handling of ammonia containers and relevant equipment. xref B. In order to charge the system, the ammonia installer needs to connect a charging line to the ammonia refrigeration system using the appropriate valve. 1462 0 obj <>/Filter/FlateDecode/ID[<1C84635D1D85CC499F6A04773BB0D393>]/Index[1455 15]/Info 1454 0 R/Length 55/Prev 991033/Root 1456 0 R/Size 1470/Type/XRef/W[1 2 1]>>stream Employee participation 6. 0000005576 00000 n Ammonia (R-717) has been a longtime, popular refrigerant choice in industrial facilities, such as cold storage warehouses, food processing plants, and chemical manufacturing plants. A list of the federal laws and regulations related to process safety, accident prevention, emergency planning, and release reporting may be found in Appendix C. Many anhydrous ammonia system … The manufacturing process is performed in a closed system combining high purity deionized water with anhydrous ammonia to produce a high quality aqua ammonia … (ii) Aboveground uninsulated containers may be charged 87.5 percent by volume provided the temperature of the anhydrous ammonia being charged is determined to be not lower than 30 °F. Ammonia Charging Hose For ammonia. While ammonia leaks are rare when following proper procedures, they can still occur. special precautions must be taken when working with this chemical. 26 20 ��⭱��$ Ammonia is a hazardous chemical that can cause injury and death if not handled properly. The ratio of liquid to gas is 1 to 800, which means that 1 litre of liquid ammonia expands to form 800 litres of gas. H��W�r�F}�W�#�%A�_�6��8�D)��79cpH� �p#���===or�eKU683���>}���Թ�NC 0000002897 00000 n Non-routine work authorisations 9. THE HAZARDS OF AMMONIA 3. Ultra-reliable, safe and efficient operation of a packaged low charge ammonia system can be achieved through thorough testing at a wide range of conditions. 0 trailer Check the level of the liquid; if it is below the line, you have to charge refrigerant in it. followed by recommendations for handling the chemical and any paperwork needed in order to use the chemical in the laboratory. Draft Definitions List C. Valve Labeling D. Pipe Labeling E. Equipment Labeling F. Annual Ammonia Inspection G. Mechanical Integrity Inspection H. Pre-Startup / Pre-Charging / Decommissioning Ammonia gas. 1. The low ammonia charge is primarily achieved due to the elimination of the ammonia piping that runs to and from the central machinery room, and its associated large pressure vessels inherent in a central machinery room. 0000002962 00000 n !�0� 0000067566 00000 n Hoses used for loading or unloading ammonia into or from the refrigeration system have a limited life. 0000059365 00000 n Management of change 8. 0000000983 00000 n Additional Items A. The most common symptoms experienced as a result of an ammonia leak are skin and eye irritation, respiratory irritation, and coughing. develop, define, and/or review operating procedures for ammonia refrigerating systems. The user must be alert to signs of hose deterioration before failure occurs. 0000008246 00000 n 4. 3. Ammonia is considered a high health hazard because it is corrosive to the skin, eyes, and lungs. contaminated ammonia. Liquid ammonia is a clear fluid that evaporates quickly at room temperature. Complex chemical reactions between oil, oxygen and ammonia. Set the barrel on the charging cylinder to align with the refrigerant pressure. Have a look at the sight glass which is attached at the side of the liquid receiver. 0000000696 00000 n Ammonia is classified by OSHA as a hazardous chemical. Charging Procedure with Boost Chargers A. V34� �� �`hh`�``�`�� �9@�A�!4�!�����-(�֐d� �)fh`� +g�h �� G�C����iPp���T8����y�}g�Neen ��f�;% �y\�@�X@U�rf`.#3@� k It is colourless, lighter than air and chemically reactive. o�}bJ��$9 �$��K 3. 0000002032 00000 n 0000001480 00000 n ammonia. Higher concentrations are easily detected. Emergency response If the system is not purged with warm, dry nitrogen prior to charging. Liquid ammonia also has a high compression ratio. Subtract the refrigerant system charge from the amount of refrigerant in the cylinder and mark the level using a rubber band on the barrel. Ammonia is highly toxic to fish. to a substantially reduced ammonia charge for their cold storagefacilities. endstream endobj 1456 0 obj <>/Metadata 120 0 R/Pages 1453 0 R/StructTreeRoot 180 0 R/Type/Catalog>> endobj 1457 0 obj <>/MediaBox[0 0 595.32 841.92]/Parent 1453 0 R/Resources<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/Rotate 0/StructParents 0/Tabs/S/Type/Page>> endobj 1458 0 obj <>stream ���g9��Ĝ���f׶���EYv\�y���!�"�h�P�� �"��/���Lb�p�b 0000001187 00000 n Develop Change Forms 13. Ammonia system shutdown operations are another circumstance during which improper procedures can result in a release. <<6A9FC5C92F5FE64F93ECDA9015A48D2A>]>> Switch off the machine. A major ammonia spill is potentially disastrous, because liquid Ammonia. Now with increased regulatory activity on fluorocarbon refrigerants (i.e., HCFCs and HFCs), even more interest has grown with ammonia as a refrigerant.. 1. Emergency preparedness also includes a need to address fires and other non-ammonia … To meet this objective, a number of diverse but highly viable industrial refrigeration systems will be reviewed in this document. In an effort to perform a relatively comprehensive examination … 0000005414 00000 n Aqua ammonia is a clear liquid with a low vapor pressure and extremely pungent odor that is strongly alkaline. It is not intended to replace or limit safety procedures in your facility. Incident investigation 7. 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