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.- " - ,. ~I 'r . . SECnCII l'PE DlAM. ~- 10 31 . 7 3 1Z' ... SuppIf u.. ]i- 10 22 .eo See Figure ~ for ac;c;epfabIe ~ NOTE The ~' diameter pipe sec:tion is used to supply from the cy6nder to the fiIst ten flow points NqUired. The main supply is then reduced to ~' ~pipe and wiD supply from one to ten additional ftow paints as required to protect the needs of 1M h8Drd far. max- imum of twenty flow points. The muimum length of the main supply 6ne between 1M first branch tile and the last branch tee is 42 feet. . Table 3-5. Piping Limitations for PCL-S50 Balancad Split System Piping % 10 Percant MAX. ... lSIli11tS MAX. SECTION PIPe FlOW FEEl' FEEl' vmr. .... DlAIol I'OIfTS lJNENl EQUV. ECUV. IlISE .,... 5cIit ~. 0 21 35 3 7 tr Afw 5cIit 110' 20 ..0 74 See Figure 3-4 for acceptable configlntions NOTE The main supply fine when used with 1M PCL-550far balanced split systems will utilize the Yo' diametec pipe to supply from the cyInder 10 1M tile which splits the system to each separate hazard ..... The ~' diameter pipe is not permitted to have .", branch'" in this application. The pipe run extending from each side of the tee is reduced to ~' diameter pipe from which each side will supply a maximum of ten flow points. Each side must be balanced within one flow point and not more than a % 10 percent imbaJance on piping run. The maximum length of the main supply line between the first branch tee and the last branch tee is 1 8 feet. B. DUCT BRANCH UNE - The duct branch ine is the run of 3/8' pipe which connedS the duct nozzles to the main supply line. A single duct branch line can suppJy six flow points when utilizing the NL-D nozzle. A single duct branch can supply two flow points when utilizing the NL-P nozzle. The piping limitations specified in Table 3-8 apply to the PCL-165. PCL-275 and PCL-S50 for the duct branch fine. Table 3-6. Duct Branch Piping Limitation MAX.. PIf'I! vmr. SECTION ClAM. llISE Dc .... Une 311- 0 4' NOTE · A single duct branch line can supply six flow points when utilizing the NL-D nozzle. A singte duct branch can supply two flow points when utilizing the NL-P naz:zle. UL EX3830 ULC CEX812 MAY 1. 1988 c. ....... BRANCH LIE - The ..... br8nch line is the IWI of 3J8. pipe which <:oI..ects the ....n suppiy line to the plenum nazzIeL Only one ftow point per tnnch is permitted. The piping ...adaI.~ in Tallie 3-7 apply to PCL-165. r PCL-275 .. PCL-550 far pIIInuIIIlnnch line.. \; ): T__ 3-7. PIerUD Ihndt PIping l.imitdcns SICIIII ...... ...... u.. ... DIAIL -.. ... LENGTH MAX. VEIIr. IISE 311"' 1 . o 4' I . D. APPl.IANa BRANCH.... ":-The ~ line is the pip- ing which COlI.aedS the....n supply ine to the appJiance noz- zle. This will be 318. dienwtIIr'pipe and can support up 10 four flow points. The piping IimaIian ~ in Table 3-8 apply 10 the PCL-165. PCL-275 and PCL-550 for1he appliance branch line. Table 3-8. AppNnce Branch Piping Um~tion PIlE SECTION ClAM. ~ ..... u.. 311" o 4' ..... l!NGTlf MAX. VERT. EQUlV; .olllSE. 4 15 NOTE: Special piping restrictions apply to each system along with the piping limitations previously mentioned as foUows: 1. PCL-165 .. Total of all duct. plenum anct app&ince branch piping is not to exceed 30 &near feeL b. Total of duct. plenum and appliance branch pipe and fittings is not to exceed 52 equivalent feet. 2. PCL-275 .. Total of aD duct. pJenum and app1ianc8 branch piping is not to exceed 50 Inear feeL b. Total of duct. plenum and appiance branch pipe and fittings is not to exceed 70 equivalent feet. 3. PCL-550 .. Total of aft duct. plenum and appfl8nce branch piping is not to exceed 75 &near feet. b. Total of duct. plenum and appliance branch pipe and fitting is not to exceed 130 equMiJent feet_ ~ .~--: '? ~: , i. ~. l.-. .1 f.. '. t~ 16 -'. . . ~ ... _._.~ .... .....-