Janus Mv Series User Manual

Page: 61
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
3.4.2 Agent Application
e nozzles used in protecting Open Front Paint Spray Booth applications are listed in Table 3.4.2 below
along with the minimum amount of dry chemical agent per second each nozzle must discharge in this usage
(minimum flow rate). e Janus Design Suite® Flow Calculation Software will determine the amount of
dry chemical agent required to meet these flow rates based on the hazard dimensions and number of nozzles
required.
3.4.3 Open Front Paint Spray Booths (OFPSB) Nozzle Coverages
3.4.3.1 Work Area and Plenum, OFPSB
e Janus Fire Systems® Engineered Dry Chemical System is flexible enough to protect a wide variety of
Open Front Booth dimensions. e maximum parameters for each Module are given on Table 3.4.3.1a and b.
Table 3.4.3.1a Work Area and Plenum Coverage, OFPSB
Protection
Nozzle
Used
Dimensions Per
Nozzle L x W x H
Maximum
Specications
Nozzle Location
Nozzle
O󰀨set*
Nozzle Orientation
Screening
SCR
(PN 16192)
-- x 8 ft x 18 ft
6 in
Side = 8 ft
Length: At Front
Edge
Width: Center
0 in to
6 in
Vertical, Pointing
downward; nozzle
holes parallel with
booth front
Work Area
TF
(PN 16172)
8 ft x 8 ft x 18 ft
6 in
Area = 64 ft²
Side = 8 ft
Length: Center
Width: Center
0 in to
6 in
Vertical, Pointing
Downward
Plenum
TF
(PN 16172)
4 ft x 8 ft x 18 ft
6 in
Volume = 384 ft³
Area = 32 ft²
Side = 8 ft
Length: Center
Width: Center
0 in to
6 in
Vertical, Pointing
Downward
Table 3.4.3.1b Work Area and Plenum Coverage, OFPSB, metric
Protection
Nozzle
Used
Dimensions Per
Nozzle L x W x H
Maximum
Specications
Nozzle Location
Nozzle
O󰀨set*
Nozzle Orientation
Screening
SCR
(PN 16192)
-- x 2438 mm x
5639 mm
Side = 2438 mm
Length: At Front
Edge
Width: Center
0 mm to
152 mm
Vertical, Pointing
downward; nozzle
holes parallel with
booth front
Work Area
TF
(PN 16172)
2438 mm x 2438
mm x 5639 mm
Area = 5.94 m²
Side = 2438 mm
Length: Center
Width: Center
0 mm to
152 mm
Vertical, Pointing
Downward
Plenum
TF
(PN 16172)
1219 mm x 2438
mm x 5639 mm
Volume = 10.27 m³
Area = 2.97 m²
Side = 2438 mm
Length: Center
Width: Center
0 mm to
152 mm
Vertical, Pointing
Downward
*NozzleO󰀨setisthemaximumdistancefromthetipofthenozzletothenearestedgeoftheprotectedzone.
Section 3 System Design
Table 3.4.2 OFPSB Nozzle Application and Minimum Flow Rates
Nozzle Type PN Application
Minimum Flowrate Minimum
Discharge Time
(sec)
Minimum Agent
Discharged
Per Nozzle
lb/s kg/s lbs kg
TF Nozzle 16172 Work Area 2.07 0.94 4.2 8.7 3.95
TF Nozzle 16172 Plenum 2.19 0.99 4.2 9.2 4.16
SCR Nozzle 16192
Screening the opening of
the Work Area
2.12 0.96 4.2 8.9 4.03
D/P Nozzle 16190 Exhaust Duct 2.04 0.93 4.2 8.57 3.91

Janus Mv Series Specifications

General

Brand	Janus
Model	Mv Series
Category	Fire Extinguisher
Language	English