Page 25 - Griffin CEA Catalog- 2026-2027

HORIZONTAL AIR FLOW

Horizontal Air Flow System

• Propeller - Aluminum blades held securely in place by a steel spider and hub provide
quiet operation
• Motor - Heavy duty PSC, totally enclosed motor with automatic thermal overload
protection and ball bearings is energy efficient. Motor can be used with variable speed
control for more precise air movement
• Guards - Two piece wire guard for easy access has a gray plastic coating to resist
corrosion CONSTRUCTION & GENERAL SUPPLIES
• Installation - Two piece rotational bracket provides a locking tilt adjustment for proper
angle of air flow. "S" bracket provides two different dimensional mountings
• Wiring - Motor comes factory-wired on the "A4" with a 6'3" conductor cord with
grounding type molded plug for easy installation
HAF12A4 HAF20A4
Size 12" 20"
RPM 1566 1626
Motor HP 1/15 1/15
Voltage 115/1 115/1
Watts 124.5 105.0 Item: 23-4020 Size: 12"
Item: 23-4025 Size: 20" 2026
Air Flow 1145 3005
2027

Dramm AME fans
Dramm AME Momentum Fans • More even air movement

• Up to 4x fewer fans than basket fans
Horizontal Air Flow, or HAF, is an important tool for managing the greenhouse
• Saves on energy and installation costs
environment. Proper air circulation not only helps to even out the temperature
throughout the greenhouse, but also is responsible for distributing humidity, • Shrouded design: Propels air further with less energy
aerosols, CO2 and pesticide sprays. Good air movement can help keep the • Sealed motor with quiet, cool operation and long life
foliage dry, helping to curb disease incidence. Initially, velocity was the sole • Variable speed control
measurement in calculating the number of fans. Momentum is replacing velocity
• Engineered installation plans
as the desired goal in greenhouse HAF systems. The goal of a momentum-
based system is to create a stable mass of air that slowly builds momentum
*Custom Fan Layout Available
as it travels through the greenhouse. The focus is on consistency and stability,
350 mm HAF fan, 208-240V Single Phase, 1850 cfm
rather than air speed. Often, traditional cage style HAF fans spinning at high rpm
Item: 41-350MM
may move the air too fast and in a much wider pattern causing turbulence and
uneven drying throughout a crop. Dramm AME Fans in series, work together to 400 mm HAF fan, 208-240V Single Phase, 2860 cfm
Item: 41-400MM
carry the air in a forward direction, reducing the energy required and creating
a more even, stable airflow. Additionally, this style of fan creates an intake as These fans drop-ship to the site from the manufacturer.
well as exhaust to continually pull and push the air forward which increases
distances between fans and a lower overall quantity compared to traditional HAF
designs. The use of a Dramm Speed Controller allows manual or automated
speed regulation. To ensure proper fan placement and to prevent mistakes in
HAF layout, Dramm provides a drawing for each installation of the AME system.
Please contact your Griffin rep for a custom layout or more information.

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CEA/HYDRO CATALOG | 25