ammonia charging procedures

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. y Anhydrous ammonia is the liquid form of pure ammonia gas, technically water-free, and the substance used universally as an industrial refrigerant. Mechanical integrity 3. Boost charging is not recommended except in exceptional circumstances e.g. The manufacturing process is performed in a closed system combining high purity deionized water with anhydrous ammonia to produce a high quality aqua ammonia … 0000002032 00000 n Weld joints that are tacked in place and exposed to the elements during construction. Ammonia is highly toxic to fish. Subtract the refrigerant system charge from the amount of refrigerant in the cylinder and mark the level using a rubber band on the barrel. xref Ammonia. Contractors 10. 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. 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. 0000059365 00000 n Management of change 8. 0000008246 00000 n 0000002711 00000 n startxref ��g9��Ĝ��f׶��EYv\�y��!�"�h�P�� "��/��Lb�p�b To meet this objective, a number of diverse but highly viable industrial refrigeration systems will be reviewed in this document. 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. Have a look at the sight glass which is attached at the side of the liquid receiver. Ammonia may also form explosive compounds with gold, silver and mercury as well as their compounds. ��⭱��$ 0000002484 00000 n 26 20 0 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. The process most commonly used is the Harber-Bosch method. 1469 0 obj <>stream Liquid ammonia also has a high compression ratio. Ammonia gas. While ammonia leaks are rare when following proper procedures, they can still occur. Exposure to 300 ppm is immediately dangerous to life and health. Ammonia system shutdown operations are another circumstance during which improper procedures can result in a release. 0000002519 00000 n 2. Ammonia Charging Hose For ammonia. <<6A9FC5C92F5FE64F93ECDA9015A48D2A>]>> 2.3This document does not address the Employee participation 6. !�0� 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 Safe Management of Ammonia Refrigeration Systems –May 2017 in Grantham Slide 3 PSM –The Tools 1. 0000002962 00000 n For this reason, ammonia is classified as very toxic to aquatic life. B. trailer 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). 0000000016 00000 n 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$�h!f 1462 0 obj <>/Filter/FlateDecode/ID[<1C84635D1D85CC499F6A04773BB0D393>]/Index[1455 15]/Info 1454 0 R/Length 55/Prev 991033/Root 1456 0 R/Size 1470/Type/XRef/W[1 2 1]>>stream Ammonia is a natural refrigerant that has been used for many years in a variety of applications due to its high thermal efficiency. 1. h��Sߋ1�W�X�$�_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�� Open the liquid receiver outlet valve and the plant is then ready for normal operation. 0 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. 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. 0000001480 00000 n �^R�t+1P�2|��;��X7�}�3�O�$� ��/��ꆦP�� ==��˓\)�4q��P�(�� o``g�� =�,��o�;d�Ø{��I��$�JC��s* Check the level of the liquid; if it is below the line, you have to charge refrigerant in it. The draining of oil from and addition of oil to ammonia refrigeration systems are routine maintenance procedures. &��*T�� Higher concentrations are easily detected. If the system is not purged with warm, dry nitrogen prior to charging. )�r�B{&/��e��-�T>�MyևnGN�U��\��[I��z�v�oX�`i<. Steps to charge Ammonia refrigerant. x�b```"v�� 45 0 obj <>stream It is not intended to replace or limit safety procedures in your facility. 0000005414 00000 n Commander (or their designee) will be in charge of the response and direct any evacuation of the ... alarms or emergency response procedures, updated training for all involved personnel will be conducted at the time of the changes. h:w��C��'OILQ�9MW��}�Rٛ]��q�>��sˏaAӝ��>W�WzT�$�rW-��v. 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. It is colourless, lighter than air and chemically reactive. o�}bJ��$9 �$��K 12. Non-routine work authorisations 9. Draft Policy B. 0000001317 00000 n 0000000696 00000 n H��W�r�F}�W�#�%A�_�6��8�D)��79cpH� �p#��===or�eKU683��>}��Թ�NC The app covers the shut-off valve status, ammonia refrigeration levels, protective equipment, cargo hoses and … 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. 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. 0000005576 00000 n Charging Procedure with Boost Chargers A. THE HAZARDS OF AMMONIA 3. 0000037456 00000 n followed by recommendations for handling the chemical and any paperwork needed in order to use the chemical in the laboratory. Ammonia and its decomposition products are nutrients that make water systems eutrophic. 4. Emergencies that can occur in an ammonia refrigeration facility range from minor emissions to ammonia releases of the type identified, evaluated, and managed as part of a Risk Management Program (40 CFR Part 68). 0000001187 00000 n The user must be alert to signs of hose deterioration before failure occurs. According to the Safety Data Sheet (SDS) for . Already the concentration of 1 mg/l may kill fish. 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. 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. Switch off the machine. • Installation is greatly simplified because the compact skid unit is factory build and tested • Plug & play design allows for simple & quick retrofits 0000002897 00000 n 1455 0 obj <> endobj 2.2This standard shall apply only to closed- circuit mechanical refrigerating systems utilizing ammonia as the refrigerant. or provided the charging of the container is stopped at the first indication of frost or ice formation on its outside surface and is not resumed until such frost or ice has disappeared. special precautions must be taken when working with this chemical. safety laws for anhydrous ammonia refrigeration system operators. Most ammonia leaks are small and do not pose serious health risks. Liquid ammonia is a clear fluid that evaporates quickly at room temperature. endstream endobj 27 0 obj <> endobj 28 0 obj <>/Encoding<>>>>> endobj 29 0 obj <> endobj 30 0 obj <>/ColorSpace<>/Font<>/ProcSet[/PDF/Text/ImageC]/ExtGState<>>> endobj 31 0 obj <> endobj 32 0 obj <> endobj 33 0 obj [/ICCBased 39 0 R] endobj 34 0 obj <> endobj 35 0 obj <> endobj 36 0 obj <> endobj 37 0 obj <>stream 26 0 obj <> endobj contaminated ammonia. In order to charge the system, the ammonia installer needs to connect a charging line to the ammonia refrigeration system using the appropriate valve. Ammonia is considered a high health hazard because it is corrosive to the skin, eyes, and lungs. This manual contains only general information on the physical properties, storage, and handling of ammonia containers and relevant equipment. 1. Improper procedures when purging non-condensables into Emergency response a stranded customer, as this will reduce battery life, especially if a battery is boost-charged more than once. Information 2. V34� �� `hh`�``�`�� 9@�A�!4�!��-(�֐d� �)fh`� +g�h �� G�C��iPp��T8��y�}g�Neen ��f�;% �y\�@�X@U�rf`.#3@� k %%EOF to a substantially reduced ammonia charge for their cold storagefacilities. Below are some of the characteristics of . Set the barrel on the charging cylinder to align with the refrigerant pressure. 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 … %%EOF %PDF-1.5 %�� Draft Information Request Form B. 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. 0000067566 00000 n Incident investigation 7. STANDARD OPERATING PROCEDURE. Ammonia is classified by OSHA as a hazardous chemical. �,;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��$��~ �� 8c4� Policies and procedures detailing how to safely operate and maintain the refrigeration system including the safe use, handling and disposal of ammonia. endstream endobj 1456 0 obj <>/Metadata 120 0 R/Pages 1453 0 R/StructTreeRoot 180 0 R/Type/Catalog>> endobj 1457 0 obj <>/MediaBox[0 0 595.32 841.92]/Parent 1453 0 R/Resources<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/Rotate 0/StructParents 0/Tabs/S/Type/Page>> endobj 1458 0 obj <>stream 0000075754 00000 n Ammonia is a hazardous chemical that can cause injury and death if not handled properly. Allow the suction pressure gauge to fall to approximately 35kPa and then close the charging valve. A major ammonia spill is potentially disastrous, because liquid Now with increased regulatory activity on fluorocarbon refrigerants (i.e., HCFCs and HFCs), even more interest has grown with ammonia as a refrigerant.. 2. ammonia. The most common symptoms experienced as a result of an ammonia leak are skin and eye irritation, respiratory irritation, and coughing. Training 5. Operating procedures 4. Open the charging cylinder hand valve and dump in the refrigerant into both the high and low side of the system. Hoses used for loading or unloading ammonia into or from the refrigeration system have a limited life. Emergency preparedness also includes a need to address fires and other non-ammonia … Wait about 10-15 minutes so that refrigerant settles down at liquid receiver. Complex chemical reactions between oil, oxygen and ammonia. Develop Change Forms 13. Condensation in the piping during construction. Additional Items A. This page describes some inspection and testing procedures, work practices, and hose selection criteria to ensure the safe transfer of ammonia. %PDF-1.4 %�� Aqua ammonia is a clear liquid with a low vapor pressure and extremely pungent odor that is strongly alkaline. 0000001062 00000 n ?��d^ඍ��CO��ӟ�q$^&~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 Refrigeration System Change Procedures A. 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 The main use of refrigeration plants on ships is to keep cargo and food provisions at low temperature to prevent them from spoiling. h�bbd``b`�� B H0ՁĄ�D03�X��b``�J�� 3. endstream endobj startxref Ammonia. 3. Commercially, ammonia is made by combining free nitrogen and hydrogen gases under high pressure and temperature in the presence of a catalyst. ��"��X�D��:��G��-�1��Xm 0O��xO{&�. (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. 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