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MV & LV SERIES ENGINEERED DRY CHEMICAL FIRE EXTINGUISHING SYSTEM
OPERATION, DESIGN, & SERVICE MANUAL
REV C
Document # DOC324
Issued: April 26, 2018
Revised: March 22, 2022
UL FILE # EX27541
3.3.1 Temperature Limitations
e operating temperature range for Vehicle Paint Spray Booth applications is -20°F to 120°F (-29°C to
49°C).
3.3.2 Work Area Coverage, VPSB
ere are two distinctly different nozzle and piping arrangements for protecting the Work Area using dry
chemical cylinders. e first arrangement is “Standard Work Area Coverage”, and the second is “Module
Perimeter Work Area Coverage”.
Section 3 System Design
Table 3.3 VPSB Nozzle Application and Minimum Flow Rates
Nozzle Type PN Application
Minimum Flowrate Minimum
Discharge Time
(sec)¹
Minimum Agent
Discharged
Per Nozzle
lb/s kg/s lbs kg
TF Nozzle 16172 Work Area 1.48 0.67 7.3 10.8 4.89
TF Nozzle 16172 Plenum 1.74 0.79 5.0 8.7 3.95
TFP Nozzle 17809
Module Perimeter Work
Area Coverage, ONLY
2.5 1.13 8.0 20.0 9.04
SCR Nozzle 16192
Screening the opening of
the Work Area
2.12 0.96 4.2 8.9 4.03
D/P Nozzle 16190
Duct; Plenum
(multiple nozzle system)
1.76 0.80 5.3 9.33 4.24
D/P Nozzle 16190
Duct; Plenum
(single nozzle system)
2.06 0.93 8.3 17.10 7.72
3-Way Nozzle 16174
Plenum
(multiple nozzle system)
1.9 0.86 5.5 10.45 4.73
3-Way Nozzle 16174
Plenum
(single nozzle system)
2.16 0.98 8.0 17.28 7.84
¹ Maximum discharge time is 30 seconds as required by NFPA 17. Actual discharge time to be determined by Janus
Design Suite software
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