Cold Water Supply R. H. Garrett EngTech, MIP RP Post President of the National Association of Plumbing Teachers, Plumber of the Year 1988 for British Standards Institution h��V[o�6�+|LQd�$P��f1�\ZwK7A��$BɐԮ����\���eh�<7��#˘��. endstream endobj startxref 15 percent of the energy use associated with a hot water delivery system is wasted in distribution losses. Working off-campus? 5.1 Sizing procedure for supply pipes The procedure below is followed by an explanation of each step with appropriate examples. 0 h�b```c``*c`e`8��A�X��,��200�1V� ��r�x�ћ?�fn��ҍ�*8::�����h��*e`~��e�Xl����l��'3w2G1�e����0�Q�9Y@��+�3���뙦1ճٳU2��.r`\SZ. Use the link below to share a full-text version of this article with your friends and colleagues. the maximum probable flow that may be expected in a water pipe. endstream endobj 75 0 obj <>>> endobj 76 0 obj <>/ExtGState<>/Font<>/ProcSet[/PDF/Text/ImageC]/Properties<>/MC1<>>>/XObject<>>>/Rotate 0/TrimBox[0.0 0.0 595.276 841.89]/Type/Page>> endobj 77 0 obj <>stream 98 0 obj <>/Filter/FlateDecode/ID[]/Index[74 44]/Info 73 0 R/Length 120/Prev 809700/Root 75 0 R/Size 118/Type/XRef/W[1 3 1]>>stream The full text of this article hosted at iucr.org is unavailable due to technical difficulties. ~�|'�"��j6�H�f�]Y`�`�-�`�,� "�ʁ$��Xe�,���l� �?�-��{�nf`��`�0 �/� endstream endobj startxref 0 %%EOF 104 0 obj <>stream h�b```�BV16af`��0p,�J���ɂ�\Q_%�>�'̍:f�O �㼰l�.�e��7����omj���¯m��j��aL@������d0 i?���T�y��v�����mxt��� �\Q��W1h.`�f0j��ɐ��[���i�n&Y�j-G��3�0of�����t�=�@� � ��=� Enter your email address below and we will send you your username, If the address matches an existing account you will receive an email with instructions to retrieve your username, I have read and accept the Wiley Online Library Terms and Conditions of Use, https://doi.org/10.1002/9780470690277.ch2. Unlimited viewing of the article/chapter PDF and any associated supplements and figures. THE “TOTAL SYSTEM” CONCEPT We have taken our highly effi cient equipment and created a convenient package; a complete domestic hot water system. h�bbd```b``V�� ��1�d�"Y�A$K,���L�W��;`�� ��X�D There are three main types of hot and cold water systems: 1. h�bbd```b``V �� ��D�������������* �z���{�"3�j>�ՔI��'Al�� R`!�:"��Ȱ�� %PDF-1.5 %���� For health Please check your email for instructions on resetting your password. $}� ɟ������ v#���L� TUj Proper flow pressure must be maintained to achieve efficient dishwashing. a demand on your electricity bills and not on your hot water system. Gravity system with recirculation. This type of system is found in many commercial buildings. %%EOF SIMPLIFIES INSTALLATION The installer simply connects the fl ue gas, electric supply, cold water make-up, and hot water supply (Building return loops connect to cold water make-up). Appendix 2 - types of hot and cold water systems. Similarly, in the points at which two networks overlaps, it is not necessary to generate two nodes as in the case of the nodes N2 and Htr (heater). Annex 2 Example of sentinel points in large complex hot water system Page 3 Content Introduction 4 Types and application of hot and cold water systems 10 Water system design and commissioning 19 Operation and inspection of hot and cold water systems 26 Water treatment & control programmes for hot and cold water systems 34 Cold water enters the building from a rising main and is stored in an intermediate cold water tank. Hot and Cold Water Supply, Second Edition. Although the water supply system to design has a Hot Water network and a Cold Water network is only necessary in the case of fixtures receiving both supplies, specify a unique name for the node. How quickly and efficiently a hot water system can deliver appropriately heated water to the 117 0 obj <>stream %PDF-1.4 %���� If you have previously obtained access with your personal account, please log in. (2) Determine the flow rate: As a rule, separate hot and cold water demand can be taken as ¾ the total portable water demand; for example, a lavatory faucet with a total demand of 2 w.s.f.u would be counted as 1½ fixture unit on the cold water system, and 1½ fixture unit on the hot water. Learn about our remote access options, Post President of the National Association of Plumbing Teachers, Plumber of the Year 1988 for British Standards Institution. 04 Reducing water use - Hot water supply, distribution and use Figure 2: External plate heat exchangers (courtesy of Radisson) Whichever type of hot water system you use, the following tips may help save water and energy: • Ensure the temperature of the hot water you are generating is suitable for each point of use. Studies have shown that the average home wastes more than 3,650 gallons of water per year waiting for hot water to arrive at the point of use. 176 Hot and Cold Water Supply BS EN 806-3 gives an alternative ‘simplified method’ of pipe sizing that can be used for ‘standard installations’.

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