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SECTION IV — SYSTEM DESIGN UL EX. 3470 ULC CEx747 Page 4 -5 10 -1 -02 REV. 3 Plenum Protection The R -102 system uses the 1W Nozzle (Part No. 419336) or the l ■ 1100 Nozzle (Part No. 430192) or the 1N Nozzle (Part No. 419335) i t for plenum protection. The 1W nozzle tip is stamped with 1W and 20 IN. (51 cm) MAXIMUM • the 1N nozzle tip is stamped with 1N, indicating they are one -flow nozzles and must be counted as one flow number each. When pro- tecting a plenum chamber, the entire chamber must be protected ,. regardless of filter length. MINIMUMcm) • VERTICAL PROTECTION — GENERAL ► One 1W nozzle or 1100 nozzle will protect 4 linear feet (1.2 m) of t plenum. The maximum distance from the end of the hood to the MAXIMUMcT) first and last nozzle must be no more than 2 ft. (.6 m). After the first nozzle, any additional nozzles must be positioned at a maximum 1 of 4 ft. (1.2 m) apart down the entire length of the plenum. The t . plenum width must not exceed 4 ft. (1.2 m). (The 1W or 1100 noz- 1 IN. (2.5 cm) zle can be used on single or V -bank filter arrangements.) See MINIMUM ► Figure 6. Fri h 2 FT. (.6 m) MAXIMUM -ir P. FIGURE 7 4 FT. (1.2 m) 000)3) MAXIMUM / i m). 4 FT (,.z m) '* \ ) 4 FT (1.2 m) 'Option 2: The 1W or 1100 nozzle must be placed perpendicular, 2 FT (.6 m) MAXIMUM • MAXIMUM 8 -12 in. (20 -30 cm) from the face of the filter and angled MAXIMUM � � to the center of the filter. The nozzle tip must be within 2 in. (5 cm) from the perpendicular center line of the fil- � ' . � i ter See Figure 8. g 0. • �� MAXIMUM (3O cm) /��' t-' i1. ice 4 IN. NAV / / k ��. (10 cm)' A/ -� MIN. U cm) l �i' I � MINIMUM NOZZLE TIP \ •N MUST BE WITHIN . a! o. FIGURE 6 THIS AREA 01.0197 Al ► When protecting plenums with the 1W or 1100 nozzle, two options 9!' Li , of coverage are available: ■ Option 1: The 1100 or 1W nozzle must be on the center line of the FIGURE 8 0o single or "V" bank filter and positioned within 1 -20 in. (2.5 -51 cm) above the top edge of the filter. See ► HORIZONTAL PROTECTION — OPTION 1 ► Figure 7. 1N NOZZLE — PART NO. 419335 — SINGLE BANK PROTECTION One 1N nozzle will protect 10 linear feet (3.1 m) of single filter bank plenum. The nozzle(s) must be mounted in the plenum, 2 to 4 in. (5 to 10 cm) from the face of the filter, centered between the filter height dimension, and aimed down the length. See Figure 9. � '1/4 t. 4 , i\ 2 - 4 IN. 10 FT. (3.1 m( � z•, \ (5 - 10 cm) MAXIMUM :iE •1 , �/ ' , I' " ►, Ik\k„.....------ ----' 000202 ► FIGURE 9