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Chapter 3 — System Design <br />„ Page 3 -1 <br />Revision 4 <br />Chapter 3 <br />System Design <br />OVERVIEW OF SYSTEM ®ESIGN side length of 12-112" (32 cm) (square) and 16-314" (43 <br />cm) (rectangular) respectively. It can also protect a <br />round duct with a maximum circumference of 50" (127 <br />The following chapter will cover the proper design of the cm) t16" (41 cm) maximum diameter). See Figure 3-1 <br />Buckeye Fire Equipment Kitchen Mister Fire & 3-2. <br />Suppression System. It is divided into three sections: <br />1. Nozzle Coverages and Placements <br />2. Piping Limitations <br />3. Detector Placement <br />Design of the Kitchen Mister System must be in <br />compliance with the parameters set forth in this manual <br />and be performed by a factory trained, Authorized <br />Buckeye Fire Equipment Dealer. Buckeye Firs <br />Equipment is not responsible for systems installed or <br />maintained by personnel that are not factory trained and <br />Authorized. <br />NOZZLE COVERAGE, PLACEMENT, <br />AND AIMING <br />This section will give detailed guidelines for determining <br />nozzle type, positioning, and aim point for appliance, <br />plenum, and duct protection. <br />Duct Protection <br />It is not necessary to shut down or damper the exhaust <br />fan for the system to function properly. It is <br />recommended that the exhaust fan be left on during <br />system discharge to help distribute the extinguishing <br />agent throughout the ductwork - <br />Ducts 50" (127 cm) Maximum Perimeter <br />Nozzle: N-1LP (1 Flow Point) <br />Coverage: Unlimited length with: <br />50" (127 cm) Maximum Perimeter with a <br />longest side of 16-314" (43 cm) for <br />rectangular ducts and 12-112" (32 cIn) for <br />square ducts <br />ar <br />50" (127 cm) Maximum Circumference <br />(maximum diameter of 16' (41 cm)) for <br />round ducts. <br />Placement- Centered induct opening, from 1-6" (2.5- <br />15 cm) into the duct opening. <br />Aim point: Center of duct <br />The Model N-1LP nozzle is a one flow point POZZJe that <br />can protect a square or rectangular duct with a <br />maximum 50' (127 cm) perimeter and a maximum one <br />Ducts -150"1381 cm) Maximum Perimeter <br />Nozzle- N-2VV (2 Flow Point) <br />Coverage: Unlimited length with: - Y <br />150" (381 cm) Maximum Perimeter with a x <br />longest side of 50" (127 cm) for <br />rectangular ducts and 37-112" (95 cm) for <br />square ducts <br />or <br />150" (381 cm) Maximum Circumference <br />tmaximum diameter of 47-112" (121 cm)] t <br />t, <br />for round ducts. <br />Placement: Centered induct opening, from 0-6" (0-15 <br />cm) into the duct opening. <br />Aim point: Center of duct. <br />Alt.;: CENTER OF <br />qOzZLE PLACEMENT:'" <br />0 to so" {0-127 an), N-1 LPJ <br />0" - o (0-15 <br />0 to 150" (0-381 cm). N-2'A) <br />INTO THE DUCT <br />FoR wcTs {VERTICAL OR HORIZON' AL) <br />WITHOUT A TRANSITION <br />.AiM:CENTEROF { <br />ENTRANCE TO <br />HORIZONTAL DUCT NO=. PLACEMENT: <br />7f2L I-T(2.5ASCm) <br />[.car. 0 to W (0-127 em), NALP) <br />leer. 0 to ta'D CT— cm), N-2Wj <br />INTO FRE DUCT TRANSITION <br />FOR DUCTS WITH A VERTICAL TO HORIZONTAL <br />TRANSITION <br />Figure 3-1. <br />Proper Duct Nozzle Placement <br />BPN: $FR-TM ULEX 68355 €7! C-EX 6985 <br />January 1, 20-11 <br />