2018-2019 Horticultural Catalog

CoolNet Pro Fogging System
Super-fine static mist especially designed for cooling and
humidifying greenhouses and livestock, and for irrigating over
propagation tables
Fogger has four nozzles that each produce a nominal flow rate
of 2 gph at 60 psi with an average particle size of 90 microns
Designed to be used with the hanging assembly on the
next page by a press-fit connection
60 psi is required for optimal operation; higher pressures do
not improve performance
It is recommended to use a pressure regulator set at 65 psi in
addition to a 140 mesh disc filter
Model Flow Min. Operating Catalog Price per Each
Color Number Rate Pressure Number 1-24 25 & up
Purple 0303420LL-B 8.1 gph 28 19-76750 $ 6.79 $ 6.20
Orange 0303420HL-B 8.1 gph 58 19-76730 6.79 6.20
FIVE RECOMMENDATIONS FOR
INSTALLING AN EFFECTIVE
PROPAGATION SYSTEM
1. When using the 4-way fogger nozzle, space
them 3’-5’ apart along the supply line. The
lower GPH foggers should be spaced more
closely than the higher GPH foggers. If spaced
on 3’ centers, they can be used to convert from
fogging to watering.
2. Fogger supply lines should be spaced 3’ apart.
3. Place foggers a minimum of 18”- 30” above the
plants.
4. Set the fogger trajectories at 45º to one
another to avoid pattern interference/overlap.
5. Typical operation is for 10 seconds every 5 -10
minutes depending on crop requirements.
See page 298-310 for misting controllers.
These are excellent for maintaining automatic
control of the propagation area. See page 65 for
Rhizopon rooting compounds to enhance root
development.
CoolNet Pro fogger blocker Case
Bag of 25 19-76760 $ 6.69
For wider benches up to 8’ use two
lines of foggers equal distance from
the center of the bench. For large
areas, use 1 row of foggers for every
4’ width of area to be fogged. Position
with 45º offset as shown.
3’
18” to 30”
See next page for
hanging assemblies
3’
3’
Coolnet fogging system
Humidification and Cooling Installations:
General Spacing and Operation for Humidifying and Cooling Typical Installation for Humidification or Cooling
Distance Between
Fogger Units (ft)
3 5 6.5 10 6.5 10
Distance Between
Lines (ft)
6.5 10.5 10 10 13 13
4-Way Fogger -
Pulse (sec)
1 3 5 10 20 30
4-Way Fogger -
74 91 120 150 355 345
Interval (sec)
• In order to maximize the cooling effect, exhaust fans are recommended
to exchange the air about 20 times per hour
• These recommendations are general and should be applied in
accordance with local condition and limitations
• Duration of pulse and interval is to be fine-tuned according to local
conditions; the timing provided is just a starting point
• For crops that are not sensitive to wetting, the pulse can be prolonged,
and/or the interval shortened
• Other spacing can certainly be used with foggers; the spacings
above give some reference points between spacing and
operation intervals
5’ to 15’ Apart
3’ to 6’ Height
(generally, higher is better)
Cooling considerations include:
• Place foggers as high as possible
• Avoid spraying against the roof or structure
• Prevent precipitation by adjusting the cycle time
3’ to
10’ Apart
800-325-3055
www.hummert.com
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