Installation Guide
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BIG ASS FAN 4900
Electrical Installation (cont.)
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6.28” (160 mm)
5.90” (150 mm)
8.00” (203 mm)
6.56”(167 mm)
4.47”(114 mm)
Electrical installation overview
The electrical installation section is intended for a professional electrician. If you are unfamiliar or uncomfortable with installing electrical
components, do not attempt to install the fan without an electrician. Serious personal injury or damage to the fan and other equipment
could result. This guide is merely a recommendation of proper installation. Adhering to national and local electric codes is your
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mandatory that the installer verify that airfoils, motor assemblies, and fan controllers are matched properly at the time of installation,
especially if multiple fan systems will be installed.
The following sections outline how to prepare for the electrical installation, how to properly wire the fan controller, and proper startup
procedures.
Controller storage
Store the controller within an ambient temperature range of -40°F to 185°F (-40°C to 85°C) and a relative humidity range of 0 to 95%,
non-condensing. Do not expose the controller to a corrosive atmosphere. If the controller has been in storage or disconnected from
power for more than one year, apply AC supply power to the controller for a period of two hours prior to operation in order to recondition
the internal DC bus capacitors.
Power requirements for fan controllers
The power requirements for fan controllers are listed in the table on page 2. If multiple controls are connected to one feeder circuit, the
circuit required is the sum of the feeder circuit requirements listed on the chart. This type of installation will also require that each fan
control be installed downstream from a dedicated over-current protection device.
Mounting the wall controller
Mount the controller to a wall using a #8–#10 screw. Adhere to the following guidelines when selecting the controller location:
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objects or moving equipment.
• Do not mount any controller adjacent to or above a heat source or heat-producing equipment.
• The ambient temperature must be between 14º F (-10º C) and 122º F (50º C).
• Do not expose the controller to a corrosive atmosphere, moisture, or direct sunlight.
• When mounting the controller, keep in mind that the fan should be visible from the controller.
• A minimum distance of 6” (15.2 cm) should be maintained between fan controllers.