APPENDIX D
3-1-2010
Page D-1
Typical Examples
ATOMIZER SIDEWALL LAYOUT EXAMPLES
The following sidewall examples portray each of the four
room configurations addressed in the “General Information”
section covering the “Application of Sidewall Constraints” in
the order that they appear in that section.
ATOMIZER SIDEWALL LAYOUT EXAMPLE ONE
Example:
Turbine enclosure with non-insulated turbine. The
size of this example area is 24 ft (7.32 m) wide x 32 ft (9.76
m) long x 16 ft (4.88 m) high and is detailed in Figure 1.
FIGURE 1
008546
STEP NO. 1 – DETERMINE THE GROSS VOLUME OF
THE ROOM
For sidewall applications, the number of atomizers required
will be based on the gross volume of the room and
maximum spacing requirements. Because of the orientation
of the atomizers, floor area is not a factor in the design.
The volume is calculated by multiplying width 24 ft (7.32 m)
x length 32 ft (9.76 m) x hazard height of 16 ft (4.88 m)
which equals 12,288 ft
3
(348 m
3
).
This hazard does not exceed the maximum hazard volume
of 36,730 ft
3
(1040 m
3
).
STEP NO. 2 – DETERMINE THE MINIMUM NUMBER OF
ATOMIZERS REQUIRED
To determine the number of atomizers required, divide the
gross volume of the room by the rated volume per atomizer,
3,673 ft
3
(104 m
3
).
The gross volume is 12,288 ft3 (348 m
3
) divided by the
rated volume per atomizer of 3,673 ft
3
(104 m
3
) which
equals 3.35 atomizers. Round up to the nearest whole
number of 4 atomizers.
STEP NO. 3 – VERIFY ATOMIZER ARRAY PLACEMENT
Sketch the locations and verify spacing requirements of all
atomizers using the appropriate array. Additional atomizers
may be required if the spacing limitations are exceeded.
To determine the appropriate atomizer placement, refer to
the “General Information” section of this manual. There are
four different cases to choose from for sidewall mounted
atomizers. In this particular example, there is a ceiling
height less than 16.5 ft (5 m) and an opposing wall distance
less than 33 ft (10 m). Therefore, all of the atomizers must
be in the upper half of the room, at least 3 ft (0.9 m) from
the ceiling, and atomizers on opposing walls cannot be
aimed directly at one another. See Figure 9a of Section 2.
Atomizers may be positioned to discharge across the width
of the room or down the length of the room, provided that
direct impingement on the turbine housing is avoided.
Because of this, the diameter of the discharge pattern must
be considered when positioning atomizers.
For positioning the atomizers to discharge down the length
of the room, refer to Figure 2. Atomizers must be a
minimum of 3 ft (0.9 m) from the adjacent wall, and the
centerlines of discharge must be a minimum of 3 ft (0.9 m)
apart. Minimum horizontal and vertical spacing is dictated
by the minimum atomizer spacing. To ensure the minimum
atomizer spacing is met, stagger the atomizers vertically.
CL
16 FT
(4.88 m)
24 FT
(7.32 m)
32 FT
(9.76 m)
Summary of Contents for ANSUL AQUASONIC
Page 84: ...SECTION V 3 1 2010 Page 5 14 NOTES Installation ...
Page 88: ...SECTION VII 3 1 2010 Page 7 2 Inspection NOTES ...
Page 94: ...SECTION VIII 3 1 2010 Page 8 6 NOTES Maintenance ...
Page 116: ...APPENDIX C 3 1 2010 Page C 2 Main and Reserve Systems NOTES ...
Page 134: ...APPENDIX D 3 1 2010 Page D 18 008567 Typical Examples ...
Page 135: ...APPENDIX D 3 1 2010 Page D 19 008568 Typical Examples ...
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