Ansul R-102, Руководство по установке и обслуживанию

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Duct Protection – Multiple Nozzle (Continued)
DUCT SIZES GREATER THAN 100 IN. (2540 mm)
PERIMETER
• Ducts over 100 in. (2540 mm) perimeter may be modularized
using 2W nozzles
• No round duct option available
• Follow the design chart to determine maximum module size
for each 2W nozzle
• When determining number of nozzles required, it is sometimes
an advantage to check the chart using the shortest side as
Side “A” and then recheck it using the longest side as Side
“A.” This comparison may reveal a need for a lesser quantity
of nozzles one way versus the other way.
When working with Chart 4-1, the quantity of nozzles deter -
mined must be equally divided within the duct area.
When working with Chart 4-2, one half of the quantity of nozzles
determined must be equally positioned in the top half of the
area of the duct and the remaining half of the nozzles must be
positioned in the bottom half of the duct area.
Example: The duct to be protected has a Side “A” of 40 in.
(1016 mm) and a Side “B” of 60 in. (1524 mm). Referring to the
design chart, this duct requires four nozzles. One half of 4 = 2.
Therefore, two nozzles must be equally positioned in each of the
two duct areas. See Figure 4-3.
FIGURE 4-3
006523
60 IN.
(1524 mm)
40 IN.
(1016 mm)
30 IN. (762 mm) 30 IN. (762 mm)
20 IN.
(508 mm)
20 IN.
(508 mm)
SIDE “B”
SIDE
“A”
SECTION 4 – SYSTEM DESIGN
UL EX3470 ULC EX3470
2014-SEP-01 REV. 11 PAGE 4-3
R-102 Restaurant Fire Suppression Manual
SIDE
“A”
cm
25
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
10
13
15
18
20
23
25
28
30
33
36
38
41
43
46
48
51
53
56
58
61
64
66
69
71
74
76
79
81
84
86
89
91
91
94
97
99
102
104
107
109
112
114
117
119
122
36
37
38
39
40
41
42
43
44
45
46
47
48
6
7 6 5
26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71
1
2
3
2
4
4
5
6
64 66 69 71 74 76 79 81 84 86 89 91 94 97 99 102 104 107 109 112 114 117 119 122 124 127 130 132 135 137 140 142 145 147 150 152 155 157 160 163 165 168 170 173 175 178 180 183
in.
cm
CHART 4-1
SIDE “B”
SIDE
“A”
in.
in.
cm
CHART 4-2
A
A
NOTE: NOZZLE QUANTITIES LISTED IN CHART 4-2 MUST BE EQUALLY DIVIDED INTO EACH OF THE TWO DUCT MODULES.
006522
B
B