IN095 Rev B 0718
3
3 Saber Way, Ward Hill, MA 01835 | radonaway.com
1.0 SYSTEM DESIGN CONSIDERATIONS
1.1 INTRODUCTION
The RP, GP and XP Series Radon Fans are intended for use by trained, professional, certified/licensed radon
mitigators. The purpose of these instructions is to provide additional guidance for the most effective use of RP, GP
and XP 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 conflict, those codes, practices and regulations take
precedence over these instructions.
1.2 FAN SEALING
The RP, GP and XP Series Fans are factory sealed; no additional caulk or other materials are required to inhibit air
leakage.
1.3 ENVIRONMENTALS
The RP, GP and XP 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 RP, GP and XP 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 Muffler 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 flexible duct shall be installed between the exhaust or
supply grille(s) and the fan(s).
RP, GP and XP
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 flow to the RP, GP and XP 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 RP, GP and XP 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 RP, GP and XP Series Fan best suited for the sub-slab material
can improve the slab coverage. The RP, GP and XP Series have a wide range of models to choose from to cover a
wide range of sub-slab materials. The RP140 and 145 are best suited for general purpose use. The RP 260 can be
used where additional airflow is required, and the RP265 and RP 380 are best suited for large slab, high airflow
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
RP Series
RP140 | P/N 28460
RP145 | P/N 28461
RP260 | P/N 28462
RP265 | P/N 28463
RP380 | P/N 28464
GP Series
GP201 | P/N 28465
GP301 | P/N 28466
GP401 | P/N 28467
GP501 | P/N 28468
XP Series
XP151 | P/N 28469
XP201 | P/N 28470
