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R-410A Heat Pump Outdoor Units
WARNING: RECOGNIZE THIS SYMBOL AS AN INDICATION OF IMPORTANT SAFETY INFORMATION R-410A HEAT PUMP WARNING THESE INSTRUCTIONS OUTDOOR UNITS ARE INTENDED AS AN AID TO QUALIFIED, LICENSED SERVICE PERSONNEL FOR PROPER INSTALLATION, ADJUSTMENT, AND OPERATION OF THIS UNIT. INSTALLATION INSTRUCTIONS READ THESE INSTRUCTIONS THOROUGHLY BEFORE 16 SEER TWO-STAGE ATTEMPTING INSTALLATION OR OPERATION. FAILURE NON-COMMUNICATING HEAT PUMP TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN IMPROPER INSTALLATION, ADJUSTMENT, SERVICE, OR MAINTENANCE POSSIBLY RESULTING IN FIRE, ELECTRICAL SHOCK, PROPERTY DAMAGE, PERSONAL INJURY, OR DEATH. Do not destroy this manual. Please read carefully and keep in a safe place for future reference by a serviceman. NOTE: Actual unit appearance may vary. [ ] Indicates metric conversions. 92-105074-15-01 ( / ) Printed in USA CONTENTS 1.0 IMPORTANT SAFETY INFORMATION.......................................................3 6.0 SEQUENCE OF OPERATION..........................................................30-31 2.0 GENERAL INFORMATION.....................................................................4-5 ϲ͘ϭŽŽůŝŶŐDŽĚĞ͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘ϯϬ Ϯ͘ϭ/ŶƚƌŽĚƵĐƟŽŶ͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘ϰ ϲ͘Ϯ,ĞĂƟŶŐDŽĚĞ͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘ϯϬ Ϯ͘Ϯ/ŵƉŽƌƚĂŶĐĞŽĨĂYƵĂůŝƚLJ/ŶƐƚĂůůĂƟŽŶ͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘ϰ ϲ͘ϯ^ƵƉƉůĞŵĞŶƚĂůůĞĐƚƌŝĐ,ĞĂƚƵƌŝŶŐ,ĞĂƟŶŐDŽĚĞ͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘ϯϬ -
Corrosion Behaviour of Alpha Phase Aluminium Bronze Alloy in Selected Environments
Leonardo Electronic Journal of Practices and Technologies Issue 24, January-June 2014 ISSN 1583-1078 p. 113-125 Corrosion Behaviour of Alpha Phase Aluminium Bronze Alloy in Selected Environments Oluwayomi BALOGUN1, 2*, Joseph BORODE2, Kenneth ALANEME2, and Michael BODUNRIN2 1Prototype Engineering Development Institute, (PEDI) Ilesa, Osun State. Nigeria. 2Metallurgical and Materials Engineering Department, Federal University of Technology Akure. Nigeria. Emails: [email protected]; [email protected]; [email protected] ; [email protected]. * Corresponding author: Phone: +234-8036362432 Abstract This research investigated the corrosion behaviour of aluminium (8 wt %) bronze alloys produced via sand casting in acidic, alkaline, and marine environments. The aluminium bronze was produced from aluminium (6063) alloy and copper scraps by sand casting according to European standard specification (UNS. C61400- CuAl8), after which they were cut into smaller sizes and immersed in the selected corrosive media for corrosion test investigation. H2SO4, NaCl, NaOH, and HCl of 0.1 M, 0.2 M, 0.3 M, 0.4 M, and 0.5 M were setup for 45 days for the corrosion study. Selective phase attack was observed in the alloy, although it was much more pronounced in HCl, to the point where entire grains fell out while it exhibit minimal corrosion resistance in marine and alkaline media respectively. Intense chloride attack on the protective film formed on the surface of the aluminium bronze was observed to be responsible for the greater corrosion susceptibility of the alloy in HCl environments. Comparative studies of aluminium bronze in selected environments indicated that no corrosion was observed and the alloys have a greater tendency to be applicable in marine, alkaline and sulphuric acid environments. -
Aluminium Bronze Alloys Corrosion Resistance Guide
Copper Development Association Archive for Research Purposes Aluminium Bronze Alloys Corrosion Resistance Guide Publication No 80, 1981 Aluminium Bronze Alloys Corrosion Resistance Guide Publication No 80 July 1981 Acknowledgements CDA gratefully acknowledges the assistance of the British Non-Ferrous Metals Technology Centre, Wantage, and in particular, Mr H S Campbell, in the preparation of this Guide on behalf of the CDA Aluminium Bronze Committee. Copper Development Association Copper Development Association is a non-trading organisation sponsored by the copper producers and fabricators to encourage the use of copper and copper alloys and to promote their correct and efficient application. Its services, which include the provision of technical advice and information, are available to those interested in the utilisation of copper in all its aspects. The Association also provides a link between research and user industries and maintains close contact with other copper development associations throughout the world. Website: www.cda.org.uk Email: [email protected] Copyright: All information in this document is the copyright of Copper Development Association Disclaimer: Whilst this document has been prepared with care, Copper Development Association can give no warranty regarding the contents and shall not be liable for any direct, indirect or consequential loss arising out of its use Contents Introduction............................................................................................................................................. -
Solders and Soldering : 1
WFR:WHS:MPC UNITED STATES Letter VIII-3 NATIONAL Circular LC-761 (Supersedes LC-701, LC-493 and LC-343) Many requests Bureau of Standards for information on solders and sold circular has been prepared to give essen- tial information a condensed form in answer to such inquiries. The term "soldering" is generally understood to mean the joining of ^t^o met&l surfaces by means of another metal or alloy which . to hold is applied in the molt&n)/condition The metal which serves as the bond the others together is the solder. Pure metals may be used as solders, but practically all solders in common use are alloys. To form a satisfactory soldered joint it is necessary to heat the metals where they are to be joined at least to a temperature at which the solder is entirely molten. One of the distinctions between a soldered joint and a welded joint is that in the former the metals to be joined are not heated to a temper- ature high enough to melt them. Consequently, one of the requisites for a solder is that its melting point must be lower than that of the metals being joined. It is generally believed that satisfactory adhesion of the solder can be at- tained most easily if the solder, or one of its constituents, forms an alloy with the metals which it is to join. While it has been shown that satisfactory adhesion can be obtained without actual alloying of solder and basis metal, an extremely clean initial surface and its maintenance throughout the soldering operation is required and such a condition is extremely hard to meet in practice. -
RCI Industries & Technologies Limited
RCI Industries & Technologies Limited Investor Presentation December 2018 Executive Summary Overview • RCI Industries & Technologies Ltd. (RCI) was incorporated in 1992 by Mr. Rajeev Gupta and is one of the leading manufacturers of diversified flat and round products in copper, brass and also in stainless steel and special alloys. • The company is headquartered out of New Delhi with manufacturing plants located in Himachal Pradesh with 24,000 MTPA capacity for Round products in Nalagarh and 6,000 MTPA for Flat Products in Baddi as on March 2018 which will go to 24,000 MTPA by September 2019. • The Company is listed on BSE and has a market capitalization of INR 914 Mn as of 30th September 2018. Business Mix • Flat Products – Copper, Brass, Aluminum, stainless steel-sheets, strips, foils and coils, Tin alloy solder – bars/sheets/strips etc. • Round Products – Annealed/un-annealed copper wires, bunched copper wires, also launching cables in the brand name of RIKAYAA • Other Businesses – Trading of Ferrous & non-ferrous metals such as Copper rods, Ingots, scrap, Zinc and other related items as the same is raw material for the manufacturing divisions. Some Marquee Clients FY18 Consolidated Financial Highlights • Havells • Total Income - INR 20,440 Mn • Technocraft Industries • EBITDA - INR 645 Mn; EBITDA Margins - 3.1% • Finolex • PAT - INR 328 Mn; PAT Margins - 1.6% • KDDL Ltd. • ROCE – 16.9% • Quality Industries • ROE – 14.3% 2 COMPANY OVERVIEW 3 Company Overview • RCI Industries & Technologies Ltd. (RCI) is the only company to manufacture both round and flat products in India and having the Revenue (INR Mn) & EBITDA Margins (%) most diversified customer portfolio both in domestic and overseas 5% 4.0% with 200+ customer base. -
Chapter 5: Customer Gas Piping and Equipment Page 1 of 12
Gas Service Manual – Chapter 5: Customer Gas Piping and Equipment Page 1 of 12 Alliant Energy - Gas Service Manual Chapter 5 – Customer Gas Piping and Equipment Issued: 2019 Supersedes: 2018 A. GENERAL REQUIREMENTS 1. The Company assumes no responsibility for the installation, maintenance, or operation of the customer gas piping and equipment beyond the meter outlet. 2. The Customer shall, at their own expense, furnish, install, and maintain all building gas piping and gas utilization equipment beyond the Company’s metering facility. 3. Customer gas piping shall be of adequate size for any gas load that may be reasonably expected to develop (NFPA 54, Chapter 6). 4. Customer gas piping and equipment shall be installed and maintained at all times in accordance with the Company’s GSM and with all applicable codes and regulations. Refer to GSM Chapter 1 “General Information” for applicable codes. 5. Customer piping and equipment shall be securely supported (NFPA 54, Section 7.2.6). 6. Customer piping and equipment shall be located where it will be protected from external forces. Examples of such forces include, but are not limited to, motor vehicles, excessive vibration, falling and/or an accumulation of ice or snow, and pedestrian traffic. B. CUSTOMER GAS PIPING – MATERIALS 1. Customer piping materials shall be in accordance with NFPA 54, Chapter 5. 2. Cast iron piping shall not be used (NFPA 5.6.2.1). 3. Steel, Stainless Steel, and Wrought Iron Pipe shall be at least Schedule 10 and shall comply with the dimensional standards of ANSI/ASME -
Modern Coinage Systems
MODERN COINAGE SYSTEMS By MAJOR D. V. DEANE, C.I.E., C.B.E. {Formerly Senior Master of the Indian Government Mints) Preface. The subject of this paper covers a wide range of factors which influence the final decisions which must be made before a country can introduce a new series of coins, or even add a single new coin to the existing series. These new coinages have been necessitated for various reasons, such as the introduction of the Decimal System; the grant of Independence to a former colonial territory; the replacement of low valued currency notes by coins; and the steep increase in the price of silver during recent years, which has resulted in this metal now being almost completely abandoned for use in coinage. Each country which is considering changes in its currency or coinage presents its own particular problems. One of the most important of these is the face value of the major coinage unit of the country concerned, and of the sub-divisions thereof. In countries where the value of the major unit is high—such as the U.S. Dollar or the S. African Rand, there is a wide choice of metals and alloys for the subsidiary units, as even the lowest coin will have some intrinsic value, but in other countries—notably in Latin America—the problem is complicated by the much lower value of the major unit, and, with the steep inflationary trend which persists in many of these countries, by the risk of the metal value of the subsidiary coins eventually exceeding their face value to an extent where they disappear from circulation to be melted for use in the local non-ferrous industry. -
Aluminium Bronze
Aluminium Bronze CA104 / DTD197A DEF STAN 02-833 www.columbiametals.com C63000 / AMS4640 DEF STAN 02-834 [email protected] Aluminium bronzes are the most widely used of all the high performance copper alloys mainly due to their superb blend of strength and corrosion resistance. These properties ensure the alloys are widely utilised in marine and offshore applications in seawater and under adverse atmospheric conditions. This essential group of engineering alloys also services the aerospace, automotive and petrochemical Aluminium Bronze industries together with general engineering requirements. Aluminium bronzes are primarily copper-based alloys with an aluminium content of between 6 and 14%. Other alloying additions such as nickel, iron, manganese and silicon can be made to enhance the properties of individual grades. There are three main types of aluminium bronze: the single-phase alpha alloys containing less than 8% aluminium; the two-phase or duplex grades containing between 8 and 11% aluminium (these are usually alloyed with iron and nickel); and the copper aluminium and silicon alloys known as aluminium silicon bronzes. The most popular engineering alloys fall into the duplex category and are usually alloyed with iron and nickel to achieve higher strength and corrosion resistance, whilst the higher aluminium content creates a hard beta phase in the microstructure that improves overall strength and hardness. Aluminium silicon bronzes are mainly utilised in marine applications. The most popular grades of aluminium bronze, all stocked by Columbia Metals in a wide range of sizes in round bar, hexagon and sheet, are described below. CA104 / CW307G / BS2 B23 / DTD197A These alloys are classed as 10/5/5 nickel aluminium bronzes as the nominal composition is 10% aluminium, 5% nickel and 5% iron, with the remainder made up of copper. -
Brazing-Book-Complete.Pdf
Contents The Handy & Harman/Lucas-Milhaupt Story ..................................... 2 Section 1:The Idea of Brazing What brazing is all about ........................................................................... 4 When do you think brazing? ....................................................................... 8 The principles of joint design ....................................................................... 10 The six basic steps in brazing ...................................................................... 13 Section 2:Brazing in Action Case histories of brazing applications .......................................................... 20 Products to meet your brazing needs ............................................................ 29 Section 3: Handy &Harman Brazing Materials Selecting your brazing materials .................................................................. 32 Handy & Harman brazing & filler metals ...................................................... 34 Handy & Harman filler metals based on standard specifications ...................... 38 Handy & Harman brazing alloys in powder form ........................................... 39 Brazing ceramic materials ........................................................................... 39 Handy & Harman brazing fluxes: Listing and description ............................................................................ 40 Fluxes based on standard specifications ................................................... 41 Copper and copper alloys: Brazing materials -
Brass Versus Bronze in Material Selection You Also Might Be Interested in One of Our Products Made from Brass
www.herz.eu Brass versus Bronze in material selection You also might be interested in one of our products made from brass: www.herz.eu www.herz.eu www.herz.eu Automatic Balancing Valves Ball Valves DE LUXE for hydraulic balancing for gas, water, heating, air-conditioning, Radiator valves - perfect aesthetics ventilation and sanitation systems 1 Automatic Balancing Valves HERZ Ball valves HERZ DE LUXE www.herz.eu www.herz.eu www.HERZ.eu Gas Installations Drinking Water Systems Commissioning Centre engineering services Gas Installations Drinking Water Systems HERZ Commissioning Centre engineering services Table of contents Copper .......................................................................................................................................... 1 Bronzes ......................................................................................................................................... 2 Manganese bronzes ................................................................................................................ 2 White manganese bronzes ...................................................................................................... 2 Aluminum bronzes ................................................................................................................... 2 Nickel bronzes ......................................................................................................................... 2 Silicon bronzes ..................................................................................................................... -
Welding and Brazing.Pptx
Course 12: Welding and Brazing February 10th and 12th, 2015 1 Objectives 1. Describe and demonstrate the safe process of brazing copper tubing. 2. Describe and demonstrate the use of the PPE, tools, and materials needed to braze copper tubing. 3. Describe and demonstrate the preparaon required. 4. Describe and demonstrate the brazing process. 5. Describe and demonstrate the process of brazing copper tubing to dissimilar metals. 2 Brazing Applications • Low-pressure steam lines • Refrigerant lines • Medical gas lines • Compressed air lines • Vacuum lines • Fuel lines • Other chemical lines that need extra corrosion resistance in the piping joints 3 Brazing Safety • Wear clothing made of non-flammable fabric • Wear a long-sleeved shirt and pants with no cuffs • Wear flame-resistant gloves and high-top work boots • Turn off the gas cylinder securely when not in use • Keep a fire exEnguisher handy • Always solder in a well-venElated area • Wear respiratory equipment in areas with poor venElaon 4 Fuel Gas Safety • Store acetylene cylinders in upright posion. • Secure cylinders to a cart or structure. • Safety caps must be installed on boZles when not in use. It is illegal in some states to transport a cylinder with a regulator aached. 5 Fuel Gas Safety (cont.) • Oxygen and fuel gas cylinders must be stored at least 20' (6.096m) apart or separated by a wall at least 5' high with a 30-minute minimum fire rang. • Never handle oxygen cylinders with oily hands or gloves. Keep grease away from the cylinders and do not use oil or grease on cylinder aachments or valves. -
Comparison of Cast Bronze with Cast Duplex Stainless Steel
Comparison of Cast Bronze with Cast Duplex Stainless Steel All metals deteriorate over time and will ultimately return to their mineral state, the speed of which is dependant on the environment they are placed in and how well they are maintained . Before any comparison is made it is important to explain that not all Bronze is of Naval Engineering Standard (NES 747). This standard refers to heat treated, cast nickel aluminium bronze, which is the preferred bronze for sea water conditions. Many bronze marine products on the market today are either aluminium bronze or silicone bronze, these do not perform at the same level as the above. Cast bronze can have many impurities which affect the ability to resist corrosion in a sea water environment. Manufacturers of bronze marine fittings often neglect to clarify the type of bronze used. This should always be checked as performance does vary. Similarly, there are various stainless steels. The 300 series stainless steels are generally considered to resist rust, however 304 is inadequate for marine applications, where 316 is the accepted marine grade stainless steel. 316 shows good general resistance to corrosion and is widely used, however in certain applications (specifically where there is no oxygen present) 316 will be susceptible to corrosion. To increase resistance to corrosion a surface treatment such as electro polishing will provide extra protection. Alternatively there are superior grades of stainless steel which offer almost twice the resistance to corrosion that ordinary 316 or 316L offers. These include duplex stainless steel (2205), super duplex SS (2507). Research conducted in the UK comparing nickel aluminium bronze (NES 747) with various stainless steels in an offshore sea water environment, revealed some interesting findings.