Specifications • %
• PLEIIUM DUCT Booth Dimensions:
IIV DP2 265(14'x8' •
? w 1u p ) 1 .. Plenum:
(DOWtIj _l :�'x14'x8'
is I Duct:
IIV P1 1 26" DiameterX 17' Tall
• System OF TIGARD
314" 1?fI, Ma Approved
•
17 , Pyro them
Conditionally Approved [ ]
�-- �__---- •---- _- '--- _ -..._ ---- - - - - -- � a l. See Letter to: Follow [ ]
IIV WA + IIV WA I 70 a'
Attached
System to be installed 19trmit Nu ben Ivr
United Fire and Safety Ad. to ' - 4
4611 IIE MLK Jr Blvd B CM Date: __ EMP
Portland. OR 97211
(503) 249 -0771
Contact: Ed Wallace
CC86S290
1.. ,F �����
„, i _- -- -- Metro a 3093 f Clip N
System to be installed at: Id
Barrier Corporation
9908 Sw Tigard St.
Tigard. OR 97223
Contact:
Bryce Bowsher
503 -639 -4192
Control Head
IIV WA 314 IIV WA
• Manual Pull Station
14'
e
Chapter 3 — System Design
'Page 3 -1
REV. 3
CHAPTER III
SYSTEM DESIGN
General Designing the Proper Type of System
PYRO -CHEM Industrial Vehicle Paint Spray Booth Fire
Suppression System has been designed and tested for use It is necessary for the system designer to consider the
in commercial vehicle paint spray booth applications. The physical characteristics and layout of the.hazard area to
guidelines listed in this chapter deal with the limitations and ensure proper protection. The hazard area must meet the
parameters of various system configurations. It is the criteria for a particular system for that system to be effec-
responsibility of the Certified installer to ensure that the tive. Each nozzle is tested and designed to protect a certain
proper system design is being utilized, and that the system part of the total hazard area.
meets the limitations and parameters listed in this chapter.
Before attempting to design any system, it is necessary to In order to comply with the approval requirements of UL
attend a Factory Certification Training Class and become 1254 Standard, when protecting a Vehicle Paint Spray
Certified to install PYRO -CHEM Industrial Vehicle Paint Booth, no unclosable openings are allowed.
Spray Booth Fire Suppression Systems.
The system must also contain a discharge time delay.
Choosing the Proper Agent The ventilation system must be shut down before the
It is necessary for the system designer to consider the com- discharge of the system.
bustible material found in the hazard area to ensure proper
protection. The agent used in the system must be approved Total Flooding
for the hazard class of the combustible material. The follow-
ing are the hazard classes:
a. Cylinders:
"A" Class — Ordinary solid carbonaceous combustibles. The Models PCI- 15ABC, PCI- 17ABC, PCI- 25sABC, PCI -
These include wood, paper, cloth, fiberglass, and plastics 35ABC, and PCI -70ABC cylinders can be used for total
. flooding vehicle paint spray booth applications.
"B" Class — Flammable liquids and gases. These include
paints, solvents, gasoline, oils, and hydraulic fluids. b. Nozzles:
"C" Class — Electrical appliances. These include comput- 'Seven nozzles are available for use in protecting vehicle
ers, power generators, and power transformers. paint spray booths:
"D" Class — Combustible metals such as sodium, potassi- Nozzle Application
um, magnesium, titanium, and zirconium. The PYRO -CHEM NV -WA Work Area/Plenum /Pit (Overhead Position)
Industrial Vehicle Paint Spray Booth Fire Suppression NV -SW Work Area /Plenum /Pit (Sidewall Position)
System is not intended to protect Class D hazards. NV -P1 Backdraft/Pit (Overhead Position)
The following guidelines should be used for determining the NV OF Under Floor (Overhead Position)
NV -DP2 Pit /Duct (End Position — Horizontal)
proper agent: N -DCT Duct Only*
ABC (monoammonium phosphate - based)- for use with
• N -PLU Three Way Nozzle (Pits, Plenums, Under
Floor Trenches)
all "A," "B," and "C" Class hazards.
• Can be used with PCI -15ABC and PCI- 25sABC cylinders only
As per NFPA 17, pre- engineered dry chemical systems are
not approved for deep- seated or burrowing fires (such as C. Temperature Range:
ordinary combustibles where the agent cannot reach the The operating temperature range for vehicle paint booth
point of combustion), or on chemicals that contain their own applications is 32 °F. to 120 °F: (0 °C. to 48 °C.).
oxygen supply (such as cellulose nitrate): Do not mix differ-
ent types of agents, or agents from different manufacturers. d. Piping Requirements:
Chemical reactions may occur when incompatible chemicals Piping diagrams include limitations on pipe length and fit -
are mixed. Keep in mind that the agent must be accept- tings. See the following pages for specific piping design and
able to the Authority Having Jurisdiction. limitations for each size cylinder.
•
ULEX 3437 CEx732
September 1, 2006
1 A
Chapter 3 - System Design
Page 3 -2
REV. 3
d. Piping Requirements: (Continued) , ,: -�
'+
►Note: All listed piping diagrams represent maximum number ...' ��
of nozzles allowed. In applications that do not require the f ,, I r:• 4
maximum number of no the quantity of nozzles Can be ► e ,i ^` °
reduced. ` -. ! �`
,
In applications of this type, along with the already listed lim- ryq t . 't'
itations (notes included with each maximum layout), the fol- � e
lowing limitations apply:
• On the reduced nozzle side of the piping layout, the •' '`•,
largest listed size pipe on the standard configuration lay - , I
out must be utilized from T1 to nozzle. '` `
• The maximum length of the reduced nozzle side must be ° 1 'R Sy` .d " :r`+,
the original combination from T1 to T2, and T2 to nozzle.. 1 ;..... .'` Side
Note: In systems utilizing a T3 split, the maximum length
of the reduced nozzle side must be the original combina-
tion from T1 to T2, T2 to T3, and T3 to nozzle. Figure 3 -2. Sidewall Nozzle Location
002866bPC - • The maximum number of elbows must be the original
combination from T1 to T2, and T2 to nozzle. Note: In Note: See Design Chart for allowable offset of nozzles from
systems utilizing a T3 split, the maximum number of center of each hazard area.
elbows must be the original combination from T1 to T2, T2
► to T3, and T3 to nozzle. \ 4
1
. i_ 12 FT. '
e. Nozzle Placement: NV -Sw MAX. (PER
"" NOZZLE NOZZLE
The nozzle is to be mounted in the center (See Note) of the 6M LEVEL)
protected area, with the discharge holes in the nozzle no
greater than six (6) inches from the ceiling. For duct protec-
tion, the nozzle is to be mounted in the center. See Figure 40 t
3 -1. 12 FT.
MAX.
"7 - 0
.. .. 41
I
I s 12 FT.
MAX.
��
F' / '4
' .. 0080]5
Figure 3 -2a.
,
Height ` r,
f. Duct Nozzle Placement:
1. The maximum duct perimeter is 12 ft. (3.7 m). See Figure
3 -2b. Note: Longest side of a square or rectangular
cannot exceed 36 in. (91 cm).
_1 ...
ROUND DUCT SQUARE /RECTANGULAR DUCT
•
Side 1 Side 2 ,
W 4,
,,,,,i .,
Figure 3 -1. Nozzle Location
0028665PC
For sidewall application, the nozzle is to be mounted no 461N. (117 cm) PERIMETER = TOTAL OF
MAXIMUM 4 SIDES
greater than six (6) inches from both the ceiling and wall
(see Note) with the arrow pointing towards the center of the Fig -2b.
protected area. See Figure 3 -2. ►
ULEX 3437 CEx732
September 1, 2006
Chapter 3 - System Design
Page 3 -3
REV. 3
f. Duct Nozzle Placement: (Continued)
•2. UL 1254 Paragraph 28.2.6 states: "The duct length and • •
elevation shall be the maximum specified by the manufactur-
er for protection by a single nozzle and shall also have the •
maximum number of changes in direction (turns) specified
by the manufacturer. Longer lengths of duct and greater
number of changes in direction are to be protected using
additional duct nozzles."
PYRO -CHEM duct nozzles have not been UL tested'to cover
any turns in direction in the duct line. The use of 90 and
multiple 45° changes that results in a vertical to horizontal
change of direction constitutes additional nozzle coverage
and dry chemical agent. The nozzle must be centered in the
duct and aimed in the direction of the airflow. Protection is
also required before and after obstructions such as fans
or dampers in the duct line. If a fan or damper is located at
the duct entrance, the nozzle must be placed immediately
after the fan or damper, to a maximum of 2 ft. (.6 m) from
the duct opening. The entire exhaust ductwork must be pro-
tected.
r i j
t i
1
PLENUM
Figure 3 -2c.
► 007490
•
•
ULEX 3437 CEx732
September 1, 2006
Chapter 3 — System Design
Page 3-4
REV. 2
•g. Nozzle Coverages
Protection Nozzle Location
Zone /Nozzle Specifications within Nozzle Nozzle
Protection Nozzle L W Ht Maximum Protection Zone Offset Orientation
Work Areal NV -WA See Table 3 -1 Volume 1920 cu. ft. 2 ft. maximum 0 to 6 in. Vertical
Area 160 sq. ft. off center pointing down
Diagonal 18.86 ft. (each side)
Work Areal NV -SW See Table 3 -1A Volume 1920 cu. ft. 2 ft. maximum 0 to 6 in. Vertical
Area 160 sq. ft. off center pointing down
Diagonal 12.8 ft. (each side) (orifices in
(to farthest corner) direction of
arrow)
Backdraft NV -P1 4 ft. 14 ft. 12 ft. Volume 672 cu. ft. Shortest side - center 0 to 6 in. Vertical
Plenum Area 56 sq. ft.
Side 14 ft. Longest side -3 inch
off center (each side)
Pant Leg NV -P1 4 ft. 16 ft. 20 ft. Volume 1280 cu. ft. Shortest side - center 0 to 6 in. Vertical
Plenum Area 64 sq. ft.
Side 16 ft. Longest side -3 inch
off center (each side)
Pit NV -P1 24 ft. 4 ft. 4 ft. Volume 384 cu. ft. Shortest side- center 0 to 6 in. Vertical
(Option 1) Area 96 sq. ft.
Side 24 ft. Longest side- center
Pit NV -DP2 24 ft. 4 ft. 4 ft. Volume 384 cu. ft. Shortest side - center 2 to 8 in. Horizontal
(Option 2) Area 96 sq. ft.
Side 24 ft. Height- center
Under Floor NV -UF 16 ft. 14 ft. 4 ft. Volume 896 cu. ft. Shortest side - center 0 to 6 in. Vertical
Plenum Area 224 sq. ft.
Side 16 ft. Longest side - center
Exhaust NV -DP2 3 ft. 3 ft. 24 ft. Volume 216 cu. ft. Shortest side (cross 0 to 6 in. Horizontal for
Duct Area 9 sq. ft. section) — center horizontal ducts
Side 3 ft. Longest side (cross
(Round Duct section) Vertical for
3 ft. 10 in. diameter) vertical ducts
Exhaust N -DCT 12 ft. Perimeter or Length — center 0 to 6 in. Vertical
Duct 3 ft. 10 in. diameter Width — center (up)
24 ft. length
1 NV -WA and NV -SW nozzles can be used for plenum, pit, or under floor protection. The nozzle maximum specifications must be
followed.
2 Pant leg dimensions 4 inch minimum x 48 inch maximum.
3 Nozzle offset is the maximum distance from the tip of the nozzle to the closest edge of the protection zone.
4 Single nozzle application on a PCI -15ABC or two nozzle application on a PCI- 25sABC only.
• Note: If the exhaust duct is greater than 46 in. in diameter or 12 ft. perimeter, the use of total flood protection can be utilized.
ULEX 3437 CEx732
September 1, 2006
Chapter 3 - System Design
• ► Page 3-4.1
Protection of exhaust ducts larger than 12 ft. perimeter or
46 in. in diameter will require the use of total flooding pro-
tection for the hazard area, with the following limitation:
• NV -WA or NF -ABC nozzle can be used.
• An NV -WA or NF -ABC must be used at duct bend when
the bend turns down from horizontal.
• Horizontal duct runs are protected using a maximum of
18 ft. spacings for NV -WA nozzles and a maximum of
16 ft. spacings for NF -ABC nozzles.
• Vertical duct runs are protected using a maximum of 20 ft.
spacings for NV -WA or NF -ABC nozzles.
• The ventilation system must be shut down before the start
of the system discharge.
• A discharge time delay is required on the MONARCH
system.
9 FT. (2.4 m) MAXIMUM NV -WA
/ 8 FT. (1.2 m) MAXIMUM NF -ABC NOZZLE LOCATED
/
AT DUCT BEND
T 1 ��
20 FT. (3.7 m)
MAXIMUM NV -WA
20 FT. (3.7 m)
MAXIMUM NF -ABC
18 FT. (4.9 m) MAXIMUM NV -WA
16 FT. (2.4 m) MAXIMUM NF -ABC
20 FT. (3.7 m)
MAXIMUM NV -WA
20 FT. (3.7 m)
MAXIMUM NF -ABC
0 i
Figure 3 -2d.
007506
•
ULEX 3437 CEx732
September 1, 2006
1
Chapter 3 — System Design
• Page 3 -4.2
NOTES:
ULEX 3437 CEx732
September 1, 2006
a
Chapter 3 - System Design
Page 3 -5
REV. 3
TABLE 3 -1
Paint Spray Booth Nozzle Protection Chart - Overhead Application ,
1. 2 Ft. Max. Off - Center,
Side 1 • X ' longest and shortest side
0 -6 in. off ceiling
Side 2
Maximum Dimensions in feet/nozzle for one (1) Model NV -WA
Nozzle Maximum Nozzle Maximum Nozzle Maximum Nozzle Maximum
Side 1 Height Side 2 Side 1 Height Side 2 Side 1 Height Side 2 Side 1 Height Side 2
(feet) (feet) (feet) (feet) (feet) (feet) (feet) (feet) (feet) (feet) (feet) (feet)
3 20 18.62 7 20 13.71 11 20 8.73 15 20 6.40
19 18.62 19 14.44 19 9.19 19 6.74
18 18.62 18 15.24 18 9.70 18 7.11
17 18.62 17 16.13 17 10.27 17 7.53
16 18.62 16 17.14 16 10.91 16 8.00
15 18.62 15 17.51 15 11.64 15 8.53
14 18.62 14 17.51 14 12.47 14 9.14
13 18.62 13 17.51 13 13.43 13 9.85
12 18.62 12 17.51 12 14.55 12 10.67
11 18.62 11 17.51 11 14.55 11 10.67
10 18.62 10 17.51 10 14.55 10 10.67
9 18.62 9 17.51 9 14.55 9 10.67
8 18.62 8 17.51 8 14:55 8 10.67
4 20 18.43 8 20 12.00 12 20 8.00 16 20 6.00
19 18.43 19 12.63 19 8.42 19 6.32
18 18.43 18 13.33 18 8.89 18 6.67
17 18.43 17 14.12 17 9.41 17 7.06
16 18.43 16 15.00 16 10.00 16 7.50
15 18.43 15 16.00 15 10.67 15 8.00
14 18.43 14 17.14 14 11.43 14 8.57
13 18.43 13 17.08 13 12.31 13 9.23
12 18.43 12 17.08 12 13.33 12 10.00
11 18.43 11 17.08 11 13.33 11 10.00
10 18.43 10 17.08 10 13.33 10 10.00
9 18.43 9 17.08 9 13.33 9 10.00
8 18.43 8 17.08 8 13.33 8 10.00
5 20 18.18 9 20 10.67 13 20 7.38 17 20 5.65
19 18.18 19 11.23 19 7.77 19 5.94
18 18.18 18 11.85 18 8.21 18 6.27
17 18.18 17 12.55 17 8.69 17 6.64
16 18.18 16 13.33 16 9.23 16 7.06
15 18.18 15 14.22 15 9.85 15 7.53
14 18.18 14 15.24 14 10.55 14 8.07
13 18.18 13 16.41 13 11.36 13 8.17
12 18.18 12 16.57 12 12.31 12 8.17
11 18.18 11 16.57 11 12.31 11 8.17
10 18.18 10 16.57 10 12.31 10 8.17
9 18.18 9 16.57 9 12.31 9 8.17
8 18.18 8 16.57 8 12.31 8 8.17
6 20 16.00 10 20 9.60 14 20 6.86 18 20 5.33
19 16.84 19 10.11 19 7.22 19 5.63
18 17.78 18 10.67 18 7.62 18 5.63
17 17.88 17 11.29 17 8.07 17 5.63
16 17.88 16 12.00 16 8.57 16 5.63
15 17.88 15 12.80 15 9.14 15 5.63
14 17.88 14 13.71 14 9.80 14 5.63
13 17.88 13 14.77 13 10.55 13 5.63
12 17.88 12 16.00 12 11.43 12 5.63
11 17.88 11 16.00 11 11.43 11 5.63
10 17.88 10 16.00 10 11.43 10 5.63
9 17 9 16.00 9 11.43 9 5.63
8 17 8 16.00 8 11.43 8 5.63
ULEX 3437 CEx732
September 1, 2006
a
Chapter 3 — System Design
® Page 3 -6
REV. 2
TABLE 3 -1A
Paint Spray Booth Nozzle Protection Chart - Sidewall Application
Nozzle Location Within
Maximum Height Protected Zone
12 ft. Center of Side 2
0 -6 in. off the wall
Side 1
Side 2
Maximum Dimensions in feet/nozzle for one (1) Model NV -SW
Nozzle Max. Nozzle Max. Nozzle Max.
Side 1 Height Side 2 Side 1 Height Side 2 Side 1 Height Side 2
Ft. Ft. Ft. Ft. Ft. Ft. Ft. Ft. Ft.
3 12 24.89 7 12 21.43 11 12 13.09
4 12 24.32 8 12 19.98 12 12 8.91
5 12 23.57 9 12 18.20 12.5 12 5.51
6 12 22.61 10 12 15.98
•
ULEX 3437 CEx732
September 1, 2006
/' j
Chapter 3 - System Design
Page 3 -7
REV. 2
• N -PLU Three -Way Nozzle Application •
Protection Zone /Nozzle . 4 FT. (1.2 m)
Protection Area Nozzle L W H
6 FT. (1.8 m
Down draft N -PLU Plenum 24 x 4 x 4 ft.
Side exhaust (7.3 x 1.2 x 1.2 m)
Inverted tee Vertical Riser 6 x 4 x 16 ft.
(1.8 x 1.2 x 4.9 m)
•
Maximum Nozzle Location within Nozzle
Specifications Protection Zone Orientation (4 FT.
(4.9 m)
I I 4 .
768 cu. ft. 5 inches up. Aimed up. '
(21.8 cu. m) Centered vertically and Side holes aimed
horizontally in plenum. at ends of plenum.
I1 007434
r 24 FT.
/ (7.3 m)
4 FT. ,f,
(1.2m) -1 -. /
Protection Zone /Nozzle •
Protection Area Nozzle L W H
24
Down draft N -PLU Pit 24 x 8 x 4 ft. (7 FT
(7.3 m) 1111111111k
Pit and Trench (7.3 x 2.4 x 1.2 m)
Tee shaped Trench 16x8x4 ft.
.
(4.9x2.4x1.2m) ® ,
Maximum Nozzle Location within Nozzle
Specifications Protection Zone Orientation 4 (' ,, 4 FT.
(1.2 1 111111111 , ,i
1280 cu. ft. 5 inches off wall Aimed at opposite end (1.2 ■
m)
(36.2 cu. m) oppposite trench. of trench. Side holes '
Centered vertically and aimed at opposite ends 8 FT J
horizontally in pit. of pit. (2.4 rn�/ 16 FT.
(4.9 m)
8 FT.
007435 (2.4 m)
Protection Zone /Nozzle
Protection Area Nozzle L W H
Down draft N -PLU Pit 24 x 8 x 4 ft. 24 FT.
Pit and Trench (7.3 x 2.4 x 1.2 m) (7.3 m) 69 4 FT.
L shaped Trench 8 x 8 x 4 ft. (1.2 m)
(2.4 x 2.4 x 1.2 m) �}
Maximum Nozzle Location within Nozzle ,
Specifications Protection Zone Orientation t
1024 cu. ft. 5 inches off wall Aimed at o site d 4 FT 8 FT
p� en (1.2 m) (2.4 m) 8 FT.
(28.9 cu. m) oppposite longest of longest leg. 007436 � (2.4 m)
leg. Centered Side holes aimed at
vertically in pit. oppposite end of 8 FT.� �
1. shortest leg. (2.4 m) �/
ULEX 3437 CEx732 ,
September 1, 2006
Chapter 3 — System Design
Page 3 -8
REV. 3
PCI -15ABC with 1 nozzle
(Duct nozzle only) 0, CYLINDER
1
m
j NOZZLE
002868PC
Maximum
Cylinder Nozzle Nozzle Length Elbows Nozzle Height
Size Quantity Type Piping Section Size Maximum Maximum From Base of Tank
• PCI -15ABC 1 N -DCT Cylinder to Nozzle 3/4 in. 35 ft. (10.7 m) 6 16 ft. 1 in. (4.9 m)
NOTE:
1. These limitations apply to PCI -15ABC using one N -DCT nozzle.
2. A Main /Reserve Swing Check Valve, Part No. 417788, may be located between the cylinder and the nozzle.
3. All systems protecting vehicle paint spray booths require a factory pre -set time delay.
ULEX 3437 CEx732
September 1, 2006
Chapter 3 — System Design
Page 3 -9
REV. 2
PCI -17ABC with 1 nozzle
CYLINDER
NOZZLE
002868PC
Nozzle Length Elbows
Cylinder Size Quantity Nozzle Type Piping Section Size Maximum Maximum
PCI -17ABC 1 NV -WA or NV -SW, Cylinder to Nozzle 3/4 in. 36 ft. 4
► (10.9 m)
PCI -17ABC 1 NV -P1 (See Note 4), Cylinder to Nozzle 3/4 in. 36 ft. 7
► NV -DP2, N -PLU, NV -UF (10.9 m)
NOTE: ,
• 1. A Main /Reserve Swing Check Valve, Part No. 417788, may be located between the cylinder and the nozzle.
2. All systems protecting vehicle paint spray booths require a factory pre -set time delay.
3. When using an NV -P1 nozzle, the two largest discharge orifices in the nozzle body must be positioned parallel to the
longest dimension of the hazard being protected.
► 4. Maximum height of nozzle from base of tank to nozzle — 20 ft. (6.1 m).
ULEX 3437 , . CEx732
September 1, 2006
A
Chapter 3 — System Design
Page 3 -10
REV. 2
PCI -17ABC with 2 nozzles
CYLINDER �'
•
■
T1
',--/
1 NOZZLE
002863PC
Maximum Length Elbows
Cylinder Size Nozzle Quantity Nozzle Type Piping Section Size Maximum Maximum
' PCI -17ABC 2 NV -UF, or any Cylinder to T1 3/4 in.. 36 ft. 7
combination of NV -PI (10.9 m)
(See Note 5),
NV -DP2, N -PLU
► T1 to Nozzle 3/4 in. 14 ft. (4.3 m) 4
NOTE:
• 1. These limitations apply to PCI -17ABC using two nozzles (any combination of either NV -P1, NV -UF, NV -DP2, or N -PLU).
2. System piping must be balanced. Balanced piping that in which the difference between the shortest actual pipe length
from T1 to nozzle and the longest actual pipe length from T1 to nozzle does not exceed 10% of the longest actual pipe
length from T1 to nozzle. The number and type of fittings for all T1 to nozzle sections must be equal.
3. A Main /Reserve Swing Check Valve, Part No. 417788, may be located between the cylinder and T1.
4. All systems protecting vehicle paint spray booths require a factory pre -set time delay.
5. When using an NV -P1 nozzle, the two largest discharge orifices in the nozzle body must be positioned parallel to the
longest dimension of the hazard being protected.
• 6. Maximum height of nozzle from base of tank to nozzle — 20 ft. (6.1 m).
ULEX 3437 CEx732
September 1, 2006
Chapter 3 — System Design
Page 3 -11
REV:2
PCI- 25sABC with 2 Nozzles
(Duct nozzles only)
CYLINDER
�r.
IY
T1
NOZZLE
002863PC
• Maximum Maximum Nozzle
Cylinder Nozzle Nozzle Length Elbows Height From
Size Quantity Type Piping Section Size Maximum Maximum Base of Tank
PCI- 25sABC 2 N -DCT Cylinder to T1 3/4 in. 35 ft. (10.7 m) 5 '16 ft. 1 in. (4.9 m)
_ ► T1 to Nozzle 3/4 in. 15 ft. (4.6 m) 3
NOTE:
1, These limitations apply to PCI- 25sABC using two N -DCT nozzles.
2. System piping must be balanced. Balanced piping is that in which the difference between the shortest actual pipe length
from T1 to nozzle and the longest actual pipe length from T1 to nozzle does.not exceed 10% of the longest actual pipe
length from T1 to nozzle. The number and type of fittings for all T1 to nozzle sections must be equal.
3. A Main /Reserve Swing Check Part No. 417788, may be located between the cylinder and T1.
4. All systems protecting vehicle paint spray booths require a factory pre -set time delay.
ULEX 3437 CExT32
September 1, 2006
Chapter 3 — System Design
Page 3 -12
REV. 2
PCI -35ABC with 2 nozzles
CYLINDER i . a.
a' / T1
NOZZLE ■
002863PC
• Maximum
Cylinder Size Nozzle Nozzle Type Piping Section Size Length Elbows
Quantity Maximum Maximum
• PCI -35ABC 2 NV -WA or NV -SW Cylinder to T1 3/4 in. 36 ft. (11 m) 4
► T1 to Nozzle 3/4 in. 14 ft. (4.3 m) 2
NOTE:
1. These limitations apply to PCI -35ABC using two NV -WA or NV -SW nozzles.
2. System piping must be balanced. Balanced piping is that in which the difference between the shortest actual pipe length
from T1 to nozzle and the, longest actual pipe length from T1 to nozzle does not exceed 10% of the longest actual pipe
length from T1 to nozzle. The number and type of fittings for all T1 to nozzle sections must be equal.
3. A Main /Reserve Swing Check Valve, Part No. 417788, may be located between the cylinder and Ti.
4. All systems protecting vehicle paint spray booths require a factory pre -set time delay.
• 5. Maximum height of nozzle from base of tank to nozzle — 20 ft. (6.1 m).
ULEX 3437 CEx732
September 1, 2006
Chapter 3 — System Design
Page 3 -13
REV. 2
PCI -35ABC with 3 nozzles
CYLINDER
T1 T2
NOZZLE
002887PC
► Maximum Length Elbows
Cylinder Size Nozzle Quantity Nozzle Type Piping Section Size Maximum Maximum
• PCI -35ABC 3 1 = NV -WA or NV -SW Cylinder to T1 3/4 in. 30 ft. (9.1 m) , 4
(See Note 1) and 2 of any combination
of: NV -P1 (See Note 5),
NV -UF, NV -DP2
T1 to T2 3 /4 in. - 12 ft. (3.7m) 2
T2 to Nozzle 3/4 in. 8 ft. (2.4 m) 2
T1 to Nozzle 3/4 in. 12 ft. (3.7 m) 2
PCI -35ABC 3 NV -UF or any combination Cylinder to T1 3/4 in. 36 ft. 7
NV -P1 (See Note 1), (10.9 m)
NV -DP2, N -FLU
T1 to T2 3/4 in. 14 ft. (4.3 m) 3
T2 to Nozzle 3/4 in. 8 ft. (2.4 m) 2
► T1 to Nozzle 3/4' in. 12 ft. (3.7 m) 4
NOTE:
1. These limitations apply to PCI -35ABC using three nozzles (1 NV -WA or NV -SW and 2 of any combination of NV -P1,
NV -UF, or NV -DP2).
2. For systems that have been tested with unbalanced piping, the difference in the length of piping must not exceed 10% of
the maximum unbalanced ratio tested.
3. A Main /Reserve Swing Check Valve, Part No. 417788, may be located between the cylinder and T1.
4. All systems protecting vehicle paint spray booths require a factory pre -set time delay.
5. When using an NV -P1 nozzle, the two largest discharge orifices in the nozzle body must be positioned parallel to the
longest dimension of the hazard being protected.
6. Model NV -WA or NV -SW nozzle must be located on "T1 to nozzle" branch only.
• 7. Maximum height of nozzle from base of tank to nozzle — 20 ft. (6.1 m).
ULEX 3437 CEx732
September 1, 2006
Chapter 3 — System Design
Page 3 -14
REV. 2
PCI -35ABC with 4 nozzles
CYLINDER
•
r . T1
T2
fi
NOZZLE
002864PC
• Cylinder Size Maximum Nozzle Type Piping Section Size Length Elbows
Nozzle Quantity Maximum Maximum
• PCI -35ABC 4 Any Combination Cylinder to T1 1 in. 30 ft. (9.1 m) 7
of NV -P1 (see Note 5),
NV-DP2, or NV -UF T1 to T2 1 in. 8 ft. (2.4 m) 2
T2 to Nozzle 3/4 in. 8 ft. (2.4 m) 4
PCI -35ABC 4 NV -UF or any Cylinder to T1 1 in. 30 ft. (9.1 m) 7
combination of NV -P1, T1 to T2 1 in. 8 ft. (2.4 m) 2
NV -DP2, N -PLU
T2 to Nozzle 3/4 in. 8 ft. (2.4 m) 4
NOTE:
1. System piping must be balanced. Balanced piping is that in which the difference between the shortest actual pipe length
from T1 to nozzle and the longest actual pipe length from T1 to nozzle does not exceed 10% of the longest actual pipe
length from T1 to nozzle. T2 to nozzle on the same branch must not exceed 10% of each other. The number and type of
fittings for all last tee to nozzle sections must be equal.
2. A Main /Reserve Swing Check Valve, Part No. 417788, may be located between the cylinder and T1.
3. All systems protecting vehicle paint spray booths require a factory pre -set time delay.
4. When using an NV -P1 nozzle, the two largest discharge orifices in the nozzle body must be positioned parallel to the
longest dimension of the hazard being protected.
• 5. Maximum height of nozzle from base of tank to nozzle — 20 ft. (6.1 m).
ULEX 3437 CEx732
September 1, 2006
Chapter 3 - System Design
Page 3 -15
REV. 2
PCI -70ABC with 3 nozzles
CYLINDER
1
T T2
-
"frN3^l�:NP BfIr1Av }rtNNR:'!YYrIF'Y ln.s41M:. / .Yµ''.MSV AIOS++I , .:IK^T M. f
r
a NOZZLE
002867PC
► Maximum Length Elbows
Cylinder Size Nozzle Quantity Nozzle Type Piping Section Size Maximum Maximum
• PCI -70ABC 3 NV -WA or NV -SW Cylinder to T1 1 in. 40 ft. (12.2 m) 4
T1 to T2 3/4 in. 18 ft. (5.5 m) 2
T1 to Nozzle 3/4 in. 18 ft. (5.5 m) 2
► T2 to Nozzle 3/4 in. 9 ft. (2.7 m) 2
NOTE:
1. These limitations apply to PCI -70ABC using three NV -WA or NV -SW nozzles.
•
2. For systems that have been tested with unbalanced piping, the difference in the length of piping must not exceed 10% of
the maximum unbalanced ratio tested.
3. A Main /Reserve Swing Check Valve, Part No. 417788, may be located between the cylinder and T1.
4. All systems protecting vehicle paint spray booths require a factory pre -set time delay.
• 5. Maximum height of nozzle from base of tank to nozzle — 20 ft. (6.1 m).
ULEX 3437 CEx732
September 1,2006
Chapter 3 — System Design
Page 3 -16
REV. 3
PCI -70ABC with 4 nozzles
CYLINDER
Ti
T2A T2
•
r r
NOZZLE
002864PC
Maximum Length Elbows
Cylinder Size Nozzle Quantity Nozzle Type Piping Section Size Maximum Maximum
► PCI -70ABC 4 NV -WA or NV -SW Cylinder to T1 1 in. 40 ft. (12.2 m) 4
T1 to T2 1 in. 18 ft. (5.5 m) 2
► T2 to Nozzle 3/4 in. 9 ft. (2.7 m) 2
Maximum Length Elbows
Cylinder Size Nozzle Quantity Nozzle Type Piping Section Size Maximum Maximum
PCI -70ABC 4 3 - NV -WA or NV-SW Cylinder to T1 1 in. 40 ft. 4
► and 1 of: (12.2 m)
NV -P1 (See Note 5)
NV -UF
NV -DP2
► T1 to T2 1 in. 18 ft. (5.5 m) 2
► T2 to Nozzle 3/4 in. 9 ft. (2.7 m) 2
(Continued)
ULEX 3437 CEx732
September 1, 2006
4 ,
Chapter 3 — System Design
Page 3 -17
REV. 1
PCI -70ABC with 4 nozzles . (Continued)
Maximum Length Elbows
•
Cylinder Size Nozzle Quantity Nozzle Type Piping Section Size Maximum Maximum
PCI -70ABC 4 2 — NV -WA or NV -SW Cylinder to T1 1 in. 40 ft. 4
► and 2 of any (12.2 m)'
combination of
NV -P1 or NV -DP2
(See Note 5)
► T1 to T2 1 in. 18 ft. (5.5 m) 2
T1 to T2A* 1 in. 18 ft. (5.5 m) 3
T2 to Nozzle 3/4 in. 9 ft. (2.7 m) 2
T2A' to Nozzle 3/4 in. 9 ft. (2.7 m) 2
' The Models NV - P1 and NV - D /P2 must be located on branch T2A to nozzle only.
NOTE:
1. These limitations apply to PCI -70ABC using four NV -WA or NV -SW nozzles.
2. System piping must be balanced. Balanced piping is that in which the difference between the shortest actual pipe length
fromTl to nozzle and the longest actual pipe length from T1 to nozzle does not exceed 10% of the longest actual pipe
length from T1 to nozzle. T2 to nozzle on the same branch must not exceed 10% of each other. The number and type of
fittings for all last tee to nozzle sections must be equal.
3. A Main /Reserve Swing Check Valve, Part No. 417788, may be located between the cylinder and T1.
4. All systems protecting vehicle paint spray booths require a factory pre -set time delay.
5. When using an NV -P1 nozzle, the two largest discharge orifices in the nozzle body must be positioned parallel to the
longest dimension of the hazard being protected.
• 6. Maximum height of nozzle from base of tank to nozzle — 20 ft. (6.1 m).
•
ULEX 3437 CEx732
September 1, 2006
A
Chapter 3 — System Design
Page 3 -18
REV. 1
PCI -70ABC with 5 nozzles
0 . CYLINDER
NV -WA or NV -SW NV -P1 NV -DP2
NOZZLE $ NOZZLE NOZZLE
I a��!MiYTC: `:, `J3�i��A;�rowY}liK
------
Ti I— V i
T2A
II 1
' NV -WA or NV -SW NV -WA or NV -SW
NOZZLE NOZZLE
002885PC
► Maximum Length Elbows ,
Cylinder Size Nozzle Quantity Nozzle Type Piping Section Size Maximum Maximum
PCI -70ABC 5 3 - NV -WA or NV -SW and Cylinder to T1 1 in. 16 ft. 2
1 — NV -P1 (see Note 6) (4.9 m)
and 1 — NV -DP2
► T1 to T2A 1 in. 9 ft. (2.7 m) 2
T2A to Nozzle 3/4 in. 8 ft. (2.4 m) 2
T1 to T2B 1 in. 9 ft. (2.7 m) 2
T2B to Nozzle 3/4 in. 6 1/2 ft. (2 m) 2
T2B to T3 1 in. 6 ft. (1.8 m) 2
► T3 to Nozzle 3/4 in. 4 ft. (1.2 m) 2
NOTE:
1. These limitations apply to PCI -70ABC using five nozzles (3 NV -WA or NV -SW, 1 NV -P1, and 1 NV -DP2).
2. For systems that have been tested with unbalanced piping, the difference in the length of piping must not exceed 1O% of
the maximum unbalanced ratio tested.
3. A Main /Reserve Swing Check Valve, Part No. 417788, may be located between the cylinder and T1.
4. All systems protecting vehicle paint spray booths require a factory pre -set time delay.
5. Nozzles located after T3 can only be Models NV -DP2 and NV -P1.
6. When using NV -P1 nozzle, the two largest discharge orifices in the nozzle must be positioned parallel to the longest
dimension of the hazard being protected.
• 7. Maximum height of nozzle from base of tank to nozzle — 20 ft. (6.1 m).
ULEX 3437 CEz732
September 1, 2006
Chapter 3 - System Design
• Page 3 -19
Detector Placement
Thermal detectors are required in all hazard areas protect- A temperature survey must be performed to determine the
ed by the PYRO -CHEM Vehicle Paint Spray Booth Industrial • maximum ambient temperature of the hazard survey. See
Fire Suppression System if automatic system operation is Temperature Chart in Chapter 2 - Components.
required. Either mechanical or electrical thermal detectors
can be used for automatic system operation. Mechanical TOTAL FLOODING (DETECTOR SPACING) - FUSIBLE
detectors (fusible links) are used in conjunction with the LINKS
PYRO -CHEM Models MCH3 and NMCH3 control devices. Ceiling Height Spacing
Electrical detectors are used in conjunction with the
PYRO -CHEM Models ECH3 -24 and ECH3 -120 Control Up to 14 ft. (4.2 m) 10 ft. (3.0 m) maximum
Heads. Height detectors
5 ft. (1.5 m) max. from a wall*
• TOTAL FLOODING (DETECTOR SPACING) - THERMAL 100 ft. (9.2 sq. m) max. coverage
per r deett ector
Ceiling Height Spacing Greater than 8 ft. (2.4 m) max. between detectors
Up to 14 ft. (4.2 m) 15 ft. (4.5 m) maximum 14 ft. (4.2 m) up to
Height between detectors 20 ft. (6.1 m) height 4 ft. (1.2 m) max. from wall
7 ft. 6 in. (2.3 m) max. from wall 64 sq. ft. (5.9 sq. m) max. coverage
225 sq. ft. (20.9 sq. m) max. per detector
coverage per detector NOTE: For sloped ceiling (peaked type or shed type)
Greater than 13 ft. (3.9 m) maximum installations, refer to NFPA -72, "National Fire Alarm Code"
14 ft. (4.2 m) between detectors for detailed spacing requirements.
up to 20 ft. 6 ft. 6 in. (1.9 m) max. from wall LOCAL APPLICATION - OVERHEAD (DETECTOR SPAC-
(6.1 m) height 169 sq. ft. (15.7 sq. m) max. ING) - Maximum spacing per fusible link detector is 36 ft.
coverage per detector (3.3 m or 3 ft. (.9 m) from edge of hazard and 6 ft. (1.8 m)
Greater than 11 ft. (3.4 m) max. between fusible link detectors.
20 ft. (6.9 m) between detectors When a detector(s) is mounted more than 1 ft. (.3 m) below
up to 24 ft. (7.3 m) 5 ft. 6 in. (1.7 m) max. from wall ceiling or in an open area, heat trap(s) is recommended.
121 sq. ft. (11.2 sq. m) max. Detectors should be mounted overhead at nozzle height or
coverage per detector as close to the hazard as possible without interference, not
Greater than 9 ft. (2.7 m) max. to exceed 10 ft. (3 m).
24 ft. (7.3 m) between detectors Detectors should not be located where they will be suscep-
up to 30 ft. (9.1 m) 4 ft. 6 in. (1.4 m) max. from wall tible to damage during the normal work operation.
81 sq. ft. (7.5 sq. m) max.
coverage per detector LOCAL APPLICATION - TANKSIDE (DETECTOR SPAC-
ING) - Detectors can be located either near the inner tank
NOTE: For sloped ceiling (peaked type or shed type) wall and flammable liquid surface or above the tank. If locat-
installations, refer to NFPA -72, "National Fire Alarm Code" ed above the tank, the rules for local application overhead
for detailed spacing requirements. would apply. If located on the tank wall, the detectors can be
LOCAL APPLICATION - OVERHEAD (DETECTOR mounted horizontally or vertically in the freeboard area but
SPACING) - Maximum spacing per detector is 100 ft. must be protected from damage during normal working
(9.3 m or 5 ft. (1.5 m) from edge of hazard and 10 ft. operation. Detectors should be located at a maximum spec-
(3.1 m) between detectors. When detectors are mounted ing per detector of 3 ft. (.9 m) from edge of hazard and 6 ft.
below the ceiling in an open area, heat traps are recom- (1.8 m) between detectors on the long side of the tank.
mended.
*For 14 ft. (4.3 m) wide booths with maximum height of 12 ft. (3.7 m), the
LOCAL APPLICATION - TANKSIDE (DETECTOR SPAC- detector location off the side wall can be a maximum of 7 ft. (2.1 m).
ING) - Detectors can be located either near the inner tank •
wall and flammable liquid surface or above the tank. If locat-
ed above the tank, the rules for local application overhead
would apply. If located on the tank wall, the detectors can be
mounted horizontally or vertically in the freeboard area, but
must be protected from damage during normal working
operations. The maximum spacing per detector is 5 ft.
(1.5 m) from edge of hazard and 10 ft. (3.1 m) between
detectors.
ULEX 3437 CEx732
September 1, 2006
+ e
Chapter 3 — System Design
• Page 3 -20
NOTES:
ULEX 3437 CEx732
September 1, 2006