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<br />Chapler 3 - System Design <br />Pege 3-6 <br />REV. 3 <br /> <br />V'1 <br />lH <br />50 IN. <br />I (127 em) <br /> <br />11H ~o C J <br />(102 em) <br /> <br /> <br />NOUlE <br />LOCATION <br />AREA <br /> <br />HIOH <br />PROXIMITY <br /> <br />OOIItlOPC <br /> <br />Figure 3-4a. <br /> <br />The Model 1 L nozzle, Part No. 551066, Is used fDr low prox- <br />imlly small range protecllDn. This nozzla Is a Dna (1) flow <br />> nDzzle. The range can be equipped either with or wlthDut <br />.. a backshelf. Either type requires the same nozzle require- <br />ments. The nozzle must be IDcatad 22 In. (56 cm) from either <br />end Dr the hazard area centered from left tD right. II must be <br />13 in. to 24 In. (33 to 61 em) ebove cDoklng surface, and <br />aimed at a point one half the distance of whatever tha height <br />dimBnslDn of the nDzzle Is. When determining nozzle and aim <br />point 10catiDns, bolh measuremenls are to be taken from the <br />same end of lhe hazard area. Example: The nozzle Is <br />mount'ed 20 In. (51 cm) above the cooking surface. The aim <br />pDlnl (rom the edge of the hazerd would thBn be 10 In. (25 <br />cm) which 15 one half the nozzle mounting height dlmenslDn. <br />See Figure 3-4b_ NDte: Nozzles must be placed at or belDw <br />the shelf. wllhln the nozzle helghlllmllatlons. <br /> <br />EDGE OF <br />HAZARD AREA <br />(FRONT OR BACK) <br /> <br />. <br /> <br />I <br /> <br />.. <br /> <br />,,1/ <br /> <br />- x- <br /> <br />/1" <br />,,1/ <br /> <br />x - <br /> <br />I" <br /> <br />22 IN. ---j <br />(56 em) I lL <br />/,.~ <br /> <br />" ,~2~IN.(HI <br />,',' I (61 om) <br />,,' 13iLN <br />,'- . <br />," (H) <br />, " (33 em) <br />, ' <br />Fi0~'~J J H~RDl *"'PC <br /> <br />BURFACE <br /> <br />22 IN. <br />(56 em) <br /> <br /> <br />c;: <br /> <br />Figure 3.4b. <br /> <br />ULEX 3830 <br />August 1, 2005 <br /> <br />PN551274(3) <br /> <br />2a. High-ProxImity Backshelf Protection - When usIng the <br />2L nozzle fDr range protection with hlgh-proxlmlly backshelf, <br />the maximum length of burners being protected must not <br />exceed 28 In. (71 cm) and the maxImum area of the burners <br />must nDt axceed 336 sq. In. (2167 sq. cm). The backshelf <br />must be a minimum of 18 In. (45.7 cm) above lhe top of the <br />range and may Dverhang the burner by a maximum of 11 In. <br />(26 cm). <br /> <br />NOTE: Allhough most shelves exceed 11 In. (28 cm) In over- <br />all dBplh, make sure the shelf does not exceed 11 In. (28 cm) <br />overhang of the burner. <br /> <br />Nozzle must be IDcated on the front edge of the front burner <br />and aimed at a point 1 0 In. (25 cm) forward from the back <br />edge Df the back burner Dn the fronHo-reer centerline. <br />Nozzle must be,mDunled 24 to 35 In. (61 - 89 cm) abDve the <br />hazard surfece. See Figure 3-58. <br /> <br />\ <br /> <br />SHELF CAN OVERHANG BURNER(S) <br />I \ A MAXIMUM OF 11 IN. (28 em) <br />I \ <br />,\ <br />I \ <br />I \ <br />, \ <br />I \ <br />I \ <br />I \ <br />I \ <br />I \ <br />I \ <br />, \ <br />MAX. 26 IN. I \ <br />24-36 IN. (71 em) I <br />(61-89 em) < I <br /> <br /> <br /> <br />_L;,:::.,~ <br /> <br /> <br />CENTERLINE <br /> <br /> <br /> <br />""""'" <br /> <br />HIGH PROXIMITY BACK SHELF PROTECTION WITH THE 2L NOZZLE <br />AREA OF PROTECTION PER NOZZLE: MAX. LENGTH OF BURNER . <br />GRATES 28 IN. (71 om) AND MAX. AREA OF BURNER GRATES NOT <br />TO EXCEEO 336 sa. IN. (2168 sq. em) <br /> <br />Figure 3-5a. <br />