Page: 54
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
Section 3 System Design
3.3.2.4 Module Perimeter Work Area Coverage - Nozzle Orientation
e TFP Nozzle has been developed to provide
application of extinguishing agent from the
upper perimeter of the module being protected.
e nozzle is to be installed through the
top of the module, at the closest point to the
intersection of the module wall and module
top. e nozzle location, laterally, is to be at
the midpoint (+/-10%) of the adjacent module
edge. e tip of the nozzle must be within 6 in
(152 mm) of its entry point. e nozzle is to be
installed vertically, with the orifices pointing
downward, and the engraved arrow pointing into
the protected module. e arrow must be aligned
perpendicular to the adjacent wall, when viewed
directly from below. Proper nozzle placement is
shown in Figures 3.3.2.4a and 3.3.2.4b.
3.3.2.5 Module Perimeter Work Area
Coverage - Agent Application
For module perimeter area coverage of a
Vehicle Paint Spray Booth, the TFP Nozzle
(P/N 17809) is used. Each TFP Nozzle must
discharge a minimum of 1.78 lbs (0.8 kg) of dry
chemical agent per second (a minimum flow rate
of 1.78 lb/s (0.8 kg/s)). 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.
HEIGHT
WIDTH
LENGTH
LOCATE NOZZLE AT MIDPOINT
OF ADJACENT MODULE EDGE
6 in (152 mm) MAXIMUM
FROM ENTRY POINT
8 ft (2438 mm)
MAXIMUM
TO LATERAL
MODULE
EDGE
TFP NOZZLE AS VIEWED DIRECTLY FROM BELOW:
Figure 3.3.2.4 Nozzle Placement for Module Perimeter
Figure 3.3.2.5 Module Perimeter Nozzle Top View
To Next Page
Loading...
Need help?
General