RadonAway SF180 Installation Instructions Manual - page 3
IN065 Rev C Page 3 of 8
INSTALLATION INSTRUCTIONS IN065 Rev C
RadonAway - SF Series
SF180 p/n 28317
1.0 SYSTEM DESIGN CONSIDERATIONS
1.1 INTRODUCTION
The RadonAway SF Series Radon Fans are intended for use by trained, professional 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 standard practices,
state and local building codes and state regulations. In the event of a conflict, those codes, practices and
regulations take precedence over this instruction.
1.2 ENVIRONMENTALS
The SF Series Fans are 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 SF Series Fan, 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 Muffler 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 flow to the SF Series Fan. 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.