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IN096 Rev A 0718 33 Saber Way, Ward Hill, MA 01835 | radonaway.com
1.0 SYSTEM DESIGN CONSIDERATIONS
1.1 INTRODUCTION
The RPc, GPc, XPc and XR Series Radon Fans are intended for use by trained, professional, certied/licensed radon
mitigators. The purpose of these instructions is to provide additional guidance for the most effective use of RPc,
GPc, XPc and XR Series Fans. These instructions should be considered supplemental to EPA/radon industry standard
practices, state and local building codes and regulations. In the event of a conict, those codes, practices and
regulations take precedence over these instructions.
1.2 FAN SEALING
The RPc, GPc, XPc and XR Series Fans are factory sealed; no additional caulk or other materials are required to
inhibit air leakage.
1.3 ENVIRONMENTALS
The RPc, GPc, XPc and XR 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.
1.4 ACOUSTICS
The RPc, GPc, XPc and XR Series Fans, when installed properly, operate 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.
(To ensure quiet operation of inline and remote fans, each fan shall be installed using sound attenuation techniques appropriate for the
installation. For bathroom and general ventilation applications, at least 8 feet of insulated exible duct shall be installed between the exhaust or
supply grille(s) and the fan(s). RPc, GPc, XPc and XR Series Fans are not suitable for kitchen range hood remote ventilation applications.)
1.5 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 RPc, GPc, XPc and XR 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. Should this condition arise, it is
recommended that the fan be turned off until the water recedes, allowing for return to normal operation.
1.6 SLAB COVERAGE
The RPc, GPc, XPc and XR Series Fans 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 RPc, GPc, XPc and XR Series Fan best suited
for the sub-slab material can improve the slab coverage. The RPc, GPc, XPc and XR Series have a wide range of
models to choose from to cover a wide range of sub-slab materials. The RP140c and 145c are best suited for general
purpose use. The RP260c can be used where additional airow is required, and the RP265c is best suited for large
slab, high airow applications. 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
RPc Series
RP140c |P/N 23029-1
RP145c | P/N 23030-1
RP260c | P/N 23032-1
RP265c | P/N 23033-1
GPc Series
GP301c | P/N 23006-1
GP501c | P/N 23005-1
XPc / XR Series
XP201c | P/N 23011-1
XR261 | P/N 23019-1
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