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IN065 Rev F 0118 33 Saber Way, Ward Hill, MA 01835 | radonaway.com
1.0 SYSTEM DESIGN CONSIDERATIONS
1.1 INTRODUCTION
The RadonAway SF180 Radon Fan is intended for use by trained, professional, certied/licensed Radon mitigators.
The purpose of this instruction is to provide additional guidance for the most effective use of a RadonAway Fan.
This instruction should be considered as a supplement to EPA / radon industry standard practices, state and local
building codes and state regulations. In the event of a conict, those codes, practices and regulations take precedence
over this instruction.
1.2 ENVIRONMENTALS
The SF180 is designed to perform year-round in all but the harshest climates without additional concern for
temperature or weather. For installations in an area of severe cold weather, please contact RadonAway for assistance.
When not in operation, the fan should be stored in an area where the temperature is never less than 32 degrees F. or
more than 100 degrees F.
1.3 ACOUSTICS
The SF180, when installed properly, operates with little or no noticeable noise to the building occupants. The velocity
of the outgoing air should be considered in the overall system design. In some cases the “rushing” sound of the outlet
air may be disturbing. In these instances, the use of a RadonAway Exhaust Mufer is recommended.
1.4 GROUND WATER
In the event that a temporary high water table results in water at or above slab level, water may be drawn into
the riser pipes thus blocking air ow to the SF180. The lack of cooling air may result in the fan cycling on and off
as the internal temperature rises above the thermal cutoff and falls upon shutoff. Should this condition arise, it is
recommended that the fan be turned off until the water recedes allowing for return to normal operation.
1.5 SLAB COVERAGE
The SF Series Fan can provide coverage up to 2000+ sq. ft. per slab penetration. This will primarily depend on
the sub-slab material in any particular installation. In general, the tighter the material, the smaller the area covered
per penetration. Appropriate selection of the a Fan best suited for the sub-slab material can improve the slab
coverage. The SF180 is best suited for general purpose use. Additional suction points can be added as required. It is
recommended that a small pit (5 to 10 gallons in size) be created below the slab at each suction hole.
Fan Installation & Operating Instructions
SF180 P/N 28317
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