2204 12TH ST 2020-08-28 - Laserfiche WebLink

R-102 Restaurant Fire Suppression Manual SECTION 4—SYSTEM DESIGN - UL EX3470 ULC EX3470 2014-SEP-01 REV. 11 PAGE 4-5 . • Plenum Protection Option 2:The 1W nozzle must be placed perpendicular,8-12 in. The R-102 system uses the 1W nozzle or the 1N nozzle for ® (203-304 mm)from the face of the filter and angled to plenum protection. The 1W nozzle is stamped with 1W and the center of the filter.The nozzle tip must be within ►the 1N nozzle is stamped with 1 N, indicating they are one-flow 2 in.(50 mm)from the perpendicular center line of the nozzles and must be counted as one flow number each. When filter. See Figure 4-8. protecting a plenum chamber, the entire chamber must be 12 IN.(305 mm) protected regardless of filter length. MAXIMUM 4'IN. , Al> VERTICAL PROTECTION—GENERAL (101 mm) 8 IN.(204 mm) 1W NOZZLE—SINGLE AND"V"BANK PROTECTION II ITA•r ,•I MINIMUM One 1W nozzle will protect 4 linear feet(1.2 m) of plenum.The I �;' .• maximum distance from the end of the hood to the first and last NOZZLE TIP Air nozzle must be no more than 2 ft(0.6 m).After the first nozzle, MUST BE WITHIN THIS AREA ir . any additional nozzles must be'positioned at a maximum of 4 ft •:� (1.2 m) apart down the entire length of the plenum.The plenum .:"' width must not exceed 4 ft(1.2 m).(The 1W nozzle can be used ��° on single or V-bank filter arrangements.) See Figure 4-6. FIGURE 4-8 000200 2 FT(0.6 m) MAXIMUM HORIZONTAL PROTECTION—OPTION 1 4 FT(1.2 m) 4Fr(1.2m) MAXIMUM .1r.',.4 FT(1.2 m) " 1N NOZZLE SINGLE BANK PROTECTION 2 FT(0.6 m)MAXIMUM MAXIMUM ►One 1N nozzle will'protect 10 linear feet(3.0 m)of single filter bank MAXIMUM �� plenum.The nozzle(s)must be mounted in the plenum,2 to 4 in. �•' (50 to 102 mm)from the face of the filter, centered between the //� filter height dimension, and aimed down the length. The nozzle � • ,, must be positioned 0-6 in.(0-152 mm)from the end of the hood to . at -� �� the tip of the nozzle.See Figure 4-9. I I I� ► 2-41N. 10 FT(3.0 m) . I /' (50-12 mm) MAXIMUM t FIGURE 4-6 I 000197 \ 00020, .4.i 4 0 1 40 When protecting plenums with the 1W nozzle, two options of coverage are available: Option 1:The 1W nozzle must be on the center line of the lkil#0000, single or"V'bank filter and positioned within 1-20 in. ' (26-508 mm) above the top edge of the filter. See 000202 Figure 4-7. • I FIGURE 4-9 20 IN.(508 mm) MAXIMUM 1 IN.(26 mm) MINIMUM -- - i----1 20 IN.(508 mm) MAXIMUM 4.. 'j 1 IN.(26 mm) MINIMUM FIGURE 4-7 � ��j 000199 l/ 7