Open the liquid receiver outlet valve and the plant is then ready for normal operation. Refrigeration System Change Procedures A. Develop Change Forms 13. Charging Procedure with Boost Chargers A. It is not intended to replace or limit safety procedures in your facility. xref 0000001062 00000 n startxref The draining of oil from and addition of oil to ammonia refrigeration systems are routine maintenance procedures. h��Sߋ1�W�X�$�_8��l��{�iЀ�����w&����E�X�lfg&3߷_F�A�2� jņ%ñ�@W� ������[�o�n�� �?���hW��ø���ršJܥ.��x� h2�u;l�n��j��8y,�q^'䆊�})��q�D0�����i�c�ϺnFJ��)&).r�%>����ŴM�o�U��ܥR�Q������#x���{@���u��yoۏ���[�Y��u�O��o��*�_؞;0)]HM�9��+1=� �(�N(:��EP2�� The ratio of liquid to gas is 1 to 800, which means that 1 litre of liquid ammonia expands to form 800 litres of gas. If the system is not purged with warm, dry nitrogen prior to charging. h�b```�Pfn>!�� !G���+\�(+x[����T��01�[ R��lJ*�/� �L=��� xZ�bL�np�azɰ�AW��� ��N�/X�f8�8050.a��`q�+�aC]�| �o�P�ʺ]�.M{�����m ���m����� И�VMц�@�b0�1$�h!f contaminated ammonia. Draft Information Request Form B. Allow the suction pressure gauge to fall to approximately 35kPa and then close the charging valve. The most common symptoms experienced as a result of an ammonia leak are skin and eye irritation, respiratory irritation, and coughing. 0000002897 00000 n Draft Policy B. 0000002711 00000 n This manual contains only general information on the physical properties, storage, and handling of ammonia containers and relevant equipment. Have a look at the sight glass which is attached at the side of the liquid receiver. 0000059365 00000 n h�bbd``b`�� B H0ՁĄ�D03�X�������b``�J���� � �� 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. 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). 1455 0 obj <> endobj Information 2. Aqua ammonia is a clear liquid with a low vapor pressure and extremely pungent odor that is strongly alkaline. 0000037456 00000 n special precautions must be taken when working with this chemical. Non-routine work authorisations 9. ��⭱��$ 26 20 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. • Installation is greatly simplified because the compact skid unit is factory build and tested • Plug & play design allows for simple & quick retrofits Already the concentration of 1 mg/l may kill fish. 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. Exposure to 300 ppm is immediately dangerous to life and health. 2. o�}bJ��$9 �$��K Emergency preparedness also includes a need to address fires and other non-ammonia … Below are some of the characteristics of . 0000005576 00000 n Higher concentrations are easily detected. ammonia. 0000000983 00000 n 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 Complex chemical reactions between oil, oxygen and ammonia. Management of change 8. Operating procedures 4. 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. 0000000016 00000 n V34� �� �`hh`�``�`�� �9@�A�!4�!�����-(�֐d� �)fh`� +g�h �� G�C����iPp���T8����y�}g�Neen ��f�;% �y\�@�X@U�rf`.#3@� k 0000002484 00000 n ���g9��Ĝ���f׶���EYv\�y���!�"�h�P�� �"��/���Lb�p�b Commercially, ammonia is made by combining free nitrogen and hydrogen gases under high pressure and temperature in the presence of a catalyst. Contractors 10. Policies and procedures detailing how to safely operate and maintain the refrigeration system including the safe use, handling and disposal of ammonia. Wait about 10-15 minutes so that refrigerant settles down at liquid receiver. It is colourless, lighter than air and chemically reactive. The process most commonly used is the Harber-Bosch method. Ammonia Charging Hose For ammonia. Anhydrous ammonia is the liquid form of pure ammonia gas, technically water-free, and the substance used universally as an industrial refrigerant. 0000002519 00000 n Ammonia may also form explosive compounds with gold, silver and mercury as well as their compounds. 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. 2. Boost charging is not recommended except in exceptional circumstances e.g. Weld joints that are tacked in place and exposed to the elements during construction. Incident investigation 7. 0000002962 00000 n Now with increased regulatory activity on fluorocarbon refrigerants (i.e., HCFCs and HFCs), even more interest has grown with ammonia as a refrigerant.. safety laws for anhydrous ammonia refrigeration system operators. 0000067566 00000 n This page describes some inspection and testing procedures, work practices, and hose selection criteria to ensure the safe transfer of ammonia. Ammonia is classified by OSHA as a hazardous chemical. In order to charge the system, the ammonia installer needs to connect a charging line to the ammonia refrigeration system using the appropriate valve. to a substantially reduced ammonia charge for their cold storagefacilities. 3. The app covers the shut-off valve status, ammonia refrigeration levels, protective equipment, cargo hoses and … For this reason, ammonia is classified as very toxic to aquatic life. 0 x�b```"v��� �� Liquid ammonia is a clear fluid that evaporates quickly at room temperature. 0000075754 00000 n %%EOF 0000001187 00000 n <<6A9FC5C92F5FE64F93ECDA9015A48D2A>]>> Check the level of the liquid; if it is below the line, you have to charge refrigerant in it. �^R�t+1P�2|�����;��X7�}�3�O�$� endstream endobj startxref h:w��C��'OILQ�9MW��}�Rٛ]���q�>��������sˏaAӝ��>W�WzT�$�rW-�������v. Set the barrel on the charging cylinder to align with the refrigerant pressure. 1469 0 obj <>stream 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. 0000001480 00000 n 26 0 obj <> endobj ?���d^ඍ��CO����ӟ�q$^&~O?_A��|��^��vޤ������,��ZV�v�z��2F�N��^�R�y!>!�,�N;s�����a!�98���9�8���4�h�q���6��h�y��1ea����U�5?ȫ;�}�Z�M��Yϻj�;5TmC/�~�+�L�8�0���^9�Ǽ/�aC�D����B7�ޕ��S�����G��ؤ�G���u����鵜>\�"%�p�4�E��J`a��E�D�cd~|������>�?6U�=�fF�jUͫ�\��41Q\�O f��^*E9���I�^e% �"��~,�y 0000000696 00000 n 3. trailer Emergency response In the absence of the proper valve, the charging can occur via a line which connected to the low-pressure side of the ammonia system. The Low Charge Ammonia Refrigeration System has a capacity up to 75 tons while still maintaining a less than EPA regulated 100 lbs of ammonia. Ammonia and its decomposition products are nutrients that make water systems eutrophic. 2.2This standard shall apply only to closed- circuit mechanical refrigerating systems utilizing ammonia as the refrigerant. 1. �,;o1�80��$�,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� a stranded customer, as this will reduce battery life, especially if a battery is boost-charged more than once. 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. Steps to charge Ammonia refrigerant. 2.3This document does not address the %%EOF H��W�r�F}�W�#�%A�_�6��8�D)��79cpH� �p#���===or�eKU683���>}���Թ�NC 12. 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 According to the Safety Data Sheet (SDS) for . Ammonia. Most ammonia leaks are small and do not pose serious health risks. Mechanical integrity 3. 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. 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. 0000002032 00000 n 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. develop, define, and/or review operating procedures for ammonia refrigerating systems. Improper procedures when purging non-condensables into A major ammonia spill is potentially disastrous, because liquid Ammonia is highly toxic to fish. %PDF-1.5 %���� THE HAZARDS OF AMMONIA 3. y %PDF-1.4 %���� Liquid ammonia also has a high compression ratio. Condensation in the piping during construction. 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. Ammonia system shutdown operations are another circumstance during which improper procedures can result in a release. 0000001317 00000 n The manufacturing process is performed in a closed system combining high purity deionized water with anhydrous ammonia to produce a high quality aqua ammonia … Training 5. 45 0 obj <>stream In an effort to perform a relatively comprehensive examination … Ammonia is a hazardous chemical that can cause injury and death if not handled properly. B. Open the charging cylinder hand valve and dump in the refrigerant into both the high and low side of the system. 1. 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. Employee participation 6. &��*T�� To meet this objective, a number of diverse but highly viable industrial refrigeration systems will be reviewed in this document. Safe Management of Ammonia Refrigeration Systems –May 2017 in Grantham Slide 3 PSM –The Tools 1. Ammonia is considered a high health hazard because it is corrosive to the skin, eyes, and lungs. Ammonia is a natural refrigerant that has been used for many years in a variety of applications due to its high thermal efficiency. ��/��ꆦP��� ==��˓\)�4q��P�(�� � �o``g��� �=�,����o�;d�Ø{��I�����$�JC��s* !�0� 0 0000008246 00000 n Ammonia gas. )�r�B{&/��e����-�T>�MyևnGN�U��\���[I���z�v�oX�`i<. Hoses used for loading or unloading ammonia into or from the refrigeration system have a limited life. Since ammonia is environmentally benign, having zero (GWP) and zero (ODP) characteristics, ammonia is emerging as one of … Ammonia. 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 0000005414 00000 n While ammonia leaks are rare when following proper procedures, they can still occur. Switch off the machine. 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 STANDARD OPERATING PROCEDURE. 4. The user must be alert to signs of hose deterioration before failure occurs. (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. Subtract the refrigerant system charge from the amount of refrigerant in the cylinder and mark the level using a rubber band on the barrel. 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). ��"��X�D���:��G��-�1���Xm 0O��xO{&�. 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 Additional Items A. followed by recommendations for handling the chemical and any paperwork needed in order to use the chemical in the laboratory. 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 main use of refrigeration plants on ships is to keep cargo and food provisions at low temperature to prevent them from spoiling. 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