AprilAire ARN25F Radon Mitigation Kit Instruction Manual
- June 13, 2024
- Aprilaire
Table of Contents
AprilAire ARN25F Radon Mitigation Kit
Product Information
The ARN25F Fan – Radon is a ventilation fan designed for general ventilating use. It is intended to be used to exhaust air and is not suitable for exhausting hazardous, corrosive, or explosive materials, gases, or vapors. The fan unit does not have any user-serviceable parts and should not be opened. The fan unit should be installed by a qualified person according to all applicable codes and standards. It is important to ensure that the electrical service to the fan is locked in the off position before connecting the power supply. The fan may affect the combustion airflow of fuel-burning equipment, so it is necessary to check for possible backdraft conditions on all combustion devices after installation.
Product Usage Instructions
- Before starting the installation process, read and save the provided instructions.
- Ensure that the electrical service to the fan is switched off and locked in the off position before connecting the power supply.
- Make sure to disconnect the power before servicing the fan.
- Check the voltage at the fan to ensure it corresponds with the nameplate.
- After installing the fan, check for possible backdraft conditions on all combustion devices.
- Do not attempt to open the fan unit as there are no user-serviceable parts inside. If servicing is required, return the unit to the factory.
- Do not leave the fan unit installed on system piping without electrical power for more than 48 hours as this could result in fan failure.
- Follow the manufacturer’s instructions for usage and contact them if you have any questions.
- Switch off the power at the service panel and lock the service disconnecting means before servicing or cleaning the unit.
- If the service disconnecting means cannot be locked, securely fasten a prominent warning device to the service panel.
- Ensure that installation work and electrical wiring are done by a qualified person(s) by applicable codes and standards.
- Follow the heating equipment manufacturer’s guidelines and safety standards for sufficient air supply and proper combustion.
- Avoid damaging electrical wiring and other hidden utilities when cutting or drilling into a wall or ceiling.
- Ducted fans must always be vented to the outdoors.
- If installing the unit over a tub or shower, it must be marked as appropriate for the application and connected to a GFCI (Ground Fault Circuit Interrupter) protected branch circuit.
Warranty Information
The ARN25F Fan-Radon comes with a 5-year extended warranty when
professionally installed. The fan is provided without any warranty of any
kind, either express or implied, except as required by applicable law. Implied
warranties, if any, are limited in duration and remedy to the same extent as
the express warranty stated above.
Installation & Operating Instructions
Please Read and Save These Instructions.
DO NOT CONNECT POWER SUPPLY UNTIL FAN IS COMPLETELY INSTALLED. MAKE SURE THE
ELECTRICAL SERVICE TO THE FAN IS LOCKED IN THE “OFF” POSITION. DISCONNECT
POWER BEFORE SERVICING FAN.
- WARNING! For general ventilating use only. Do not use to exhaust hazardous, corrosive, or explosive materials, gases, or vapors.
- WARNING! Check the voltage at the fan to ensure it corresponds with the nameplate.
- WARNING! Normal operation of this device may affect the combustion airflow needed for the safe operation of fuel-burning equipment. Check for possible backdraft conditions on all combustion devices after installation.
- NOTICE! There are no user-serviceable parts located inside the fan unit. Do NOT attempt to open. Return the unit to the factory. (See Warranty, p. 8, for details.)
- WARNING! Do not leave the fan unit installed on the system piping without electrical power for more than 48 hours. Fan failure could result from this non-operational storage.
- WARNING! TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS, OBSERVE THE FOLLOWING:
- Use this unit only in the manner intended by the manufacturer. If you have questions, contact the manufacturer. (See p. 8.)
- Before servicing or cleaning the unit, switch the power off at the service panel and lock the service disconnecting means to prevent power from being switched on accidentally. When the service disconnecting means cannot be locked, securely fasten a prominent warning device, such as a tag, to the service panel.
- Installation work and electrical wiring must be done by a qualified person(s) by all applicable codes and standards, including fire-rated construction.
- Sufficient air is needed for proper combustion and exhausting of gases through the flue (chimney) of fuel-burning equipment to prevent back-drafting. Follow the heating equipment manufacturer’s guidelines and safety standards such as those published by any National Fire Protection Association, the American Society for Heating, Refrigerating and Air Conditioning Engineers (ASHRAE), and the local code authorities.
- When cutting or drilling into a wall or ceiling, do not damage electrical wiring and other hidden utilities.
- Ducted fans must always be vented to outdoors.
- If this unit is to be installed over a tub or shower, it must be marked as appropriate for the application and be connected to a GFCI (Ground Fault Circuit Interrupter) protected branch circuit.
SYSTEM DESIGN CONSIDERATIONS
INTRODUCTION
The AprilAire Fan is 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 the Aprilaire Fan. These instructions should be considered supplemental to current industry standards and federal, state, county, and local building codes and regulations. In the event of a conflict, those standards, codes, practices, and regulations take precedence over these instructions.
FAN SEALING
The AprilAire Fan is factory sealed; no additional caulk or other materials
are required to inhibit air leakage.
ENVIRONMENTAL
The AprilAire Fan 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 AprilAire 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.
ACOUSTICS
The AprilAire 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, a “rushing”
sound of the outlet air may be audible. In these instances, the use of an
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). AprilAire Fans are not suitable for kitchen range hood remote ventilation applications.)
GROUNDWATER
If a temporary high water table results in water at or above slab level, water
may be drawn into the riser pipes, thus blocking airflow to the AprilAire 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 a return to normal operation.
SLAB COVERAGE
The AprilAire 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 an AprilAire fan best
suited for the sub-slab material can improve slab coverage. The ARN15F is best
suited for general-purpose use. The ARN25F can be used where additional
airflow is required, and the ARNHPF is best suited for tight soil conditions.
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.
CONDENSATION & DRAINAGE
Condensation is formed in the piping of a mitigation system when the air in
the piping is chilled below its dew point. This can occur at points where the
system piping goes through unheated spaces such as an attic, garage, or
outside. The system design must provide a means for water to drain back to a
slab hole to remove the condensation. The AprilAire Fan MUST be mounted
vertically plumb and level, with the outlet pointing up for proper drainage
through the fan. Avoid mounting the fan in any orientation that will allow
water to accumulate inside the fan housing. The AprilAire Fan is NOT suitable
for underground burial.
For Aprilaire Fan piping, the following table provides the minimum recommended pipe diameter and pitch under several system conditions.
| Pipe Diameter | **Minimum Rise per Ft of Run*** |
|---|---|
| @25 CFM | @50 CFM |
| 4” | 1/8” |
| 3” | 1/4” |
RISE RUN
SYSTEM MONITOR & LABEL
A System Monitor, such as a manometer (P/N ARN05M) or audible alarm (P/N
ARNALM), is required to notify the occupants of a fan system malfunction. A
System Label (provided with Manometer P/N ARN05M) with instructions for
contacting the installing contractor for service and identifying the necessity
for regular radon tests to be conducted by the building occupants must be
conspicuously placed in a location where the occupants frequent and can see
the label.
ELECTRICAL WIRING
The AprilAire Fan operates on standard 120V, 60Hz AC. All wiring must be
performed by the National Fire Protection (NFPA) National Electrical Code,
Standard #70, current edition, for all commercial and industrial work, and
state and local building codes. All wiring must be performed by a qualified
and licensed electrician. Outdoor installations require the use of a UL-listed
watertight conduit. Ensure that all exterior electrical boxes are outdoor
rated and properly sealed to prevent water penetration into the box. A means,
such as a weep hole, is recommended to drain the box.
SPEED CONTROLS
The AprilAire Fan is rated for use with electronic speed controls; however,
speed controls are generally not recommended. If used, the recommended speed
control is Pass & Seymour Solid State Speed Control (Cat. No. 94601-1).
INSTALLATION
The AprilAire Fan can be mounted indoors or outdoors. (It is suggested that
current industry standards and federal, state, county, and local building
codes and regulations be followed in choosing the fan location.) The AprilAire
Fan may be mounted directly on the system piping or fastened to a supporting
structure using an optional mounting bracket.
The ducting from the fan to the outside of the building has a strong effect on noise and fan energy use. Use the shortest, straightest duct routing possible for best performance, and avoid installing the fan with smaller ducts than recommended. Insulation around the ducts can reduce energy loss and inhibit mold growth. Fans installed with existing ducts may not achieve their rated airflow.
MOUNTING
Mount the AprilAire Fan vertically with the outlet up, using flexible couplings to connect the fan to the pipe. Ensure the unit is plumb and level. When mounting directly on the system piping ensure that the fan does not contact any building surface to avoid vibration noise.
SYSTEM PIPING
Complete piping run, using flexible couplings as a means of disconnect for
servicing the unit and for vibration isolation. As the fan is typically
outside of the building’s thermal boundary and is venting to the outside,
installation of insulation around the fan is not required.
ELECTRICAL CONNECTION
Connect wiring with wire nuts provided, observing proper connections (See
Section 1.9). Note that the fan is not intended for connection to rigid metal
conduit.
OPERATION CHECKS AND ANNUAL SYSTEM MAINTENANCE
- Verify all connections are tight and leak-free.
- Ensure the AprilAire Fan and all ducting are secure and vibration-free.
- Verify system vacuum pressure with a manometer. Ensure vacuum pressure is within normal operating range and less than the maximum recommended operating pressure. (Based on sea-level operation, at higher altitudes reduce by about 4% per 1000 feet) (Further, reduce Maximum Operating Pressure by 10% for High-Temperature environments.) See Product Specifications. If this is exceeded, increase the number of suction points.
- Verify Radon levels by testing to applicable current industry standards and federal, state, county, and local building codes and regulations.
THE FOLLOWING CHARTS SHOW THE PERFORMANCE OF APRILAIRE FANS
Product Specifications
Typical CFM Vs. Static Pressure “WC
Model
| ****
0”
| ****
.2”
| ****
.5”
| ****
.75”
| ****
1.0”
| ****
1.25”
| ****
1.5”
| ****
1.75”
| ****
2.0”
ARN15F
| ****
168
| ****
150
| ****
123
| ****
105
| ****
84
| ****
64
| ****
44
| ****
20
| ****
3
ARN25F
| ****
375
| ****
340
| ****
282
| ****
238
| ****
204
| ****
170
| ****
140
| ****
108
| ****
70
Model
| Power Consumption 120VAC, 60Hz, 1.5 Amp Maximum| *Maximum Recommended
Operation Pressure (Sea Level Operation)****
---|---|---
ARN15F
| ****
46 – 72 watts
| ****
1.7” WC
ARN25F
| ****
96 – 136 watts
| ****
2.2” WC
Reduce by 10% for High Temperature Operation **Reduce by 4% per 1000 ft. of altitude.
Model
| ****
Size
| ****
Weight
| ****
Inlet/Outlet
| ****
L.2
---|---|---|---|---
ARN15F
| ****
8.5” H x 9.7” Dia.
| ****
5.5 lbs
| ****
4.5” OD
| ****
15
ARN25F
| ****
8.6” H x 11.75” Dia.
| ****
6.5 lbs
| ****
6.0” OD
| ****
30
Additional Specifications
Model
| ****
Recommended Duct
| ****
PVC Pipe Mounting
| Thermal
Cutout
| ****
Insulation Class
---|---|---|---|---
ARN15F
| 3” or 4” Schedule 20/40 PVC| Mount on the duct pipe or with an optional mounting bracket. For Ventilation: 4”, 6” or 8” Rigid or Flexible Ducting.|
130oC/266oF
| Class F Insulation
ARN25F
| ****
150oC/302oF
L.2 = Estimated Equivalent Length of Rigid Metal Ducting resulting in .2” WC pressure loss for Duct Size listed. Longer Equivalent Lengths can be accommodated at Flows Lower than that at .2” WC pressure loss (see CFM vs. Static Pressure “WC Table).
Warranty
AprilAire® warrants that the Fan will be free from defects in materials and
workmanship for 12 months from the date of installation or 18 months from the
date of manufacture, whichever is sooner (the “Warranty Term”).
AprilAire® will replace any fan that fails due to defects in materials or
workmanship during the Warranty Term. This Warranty is contingent on the
installation of the Fan by the instructions provided. This Warranty does not
apply to damage caused by repairs or alterations made or attempted, or if the
unit has been abused or misused. The warranty does not cover damage in
shipment unless the damage is due to the negligence of AprilAire®.
The Fan must be returned (at the owner’s cost) to the AprilAire® factory. Any Fan returned to the factory will be discarded unless the owner provides specific instructions along with the Fan when it is returned regardless of whether or not the Fan is replaced under this warranty. If a factory return is required, the customer assumes all shipping costs, including insurance, to and from the factory. Proof of purchase must be supplied upon request for service under this Warranty.
5-YEAR EXTENDED WARRANTY WITH PROFESSIONAL INSTALLATION
AprilAire® will extend the Warranty Term of the Fan to 60 months (5 years)
from the date of installation or 66 months from the date of manufacture,
whichever is sooner, provided that the Fan is installed by a professional
radon mitigation contractor. Proof of purchase and/or proof of professional
installation may be required for service under this warranty. This extended
warranty is not offered outside the continental United States and Canada.
AprilAire® is not responsible for installation, removal, or delivery costs
associated with this Warranty.
LIMITATION OF WARRANTY
EXCEPT AS STATED ABOVE AND AS REQUIRED BY APPLICABLE LAW, THE FAN IS PROVIDED
WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, WITHOUT
LIMITATION, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. TO THE EXTENT IMPLIED WARRANTIES CANNOT BE DISCLAIMED, THEY ARE
LIMITED IN DURATION AND REMEDY TO THE SAME EXTENT AS THE EXPRESS WARRANTY
STATED ABOVE. TO THE EXTENT PERMITTED BY LAW, AprilAire SHALL IN NO EVENT BE
LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
ARISING OUT OF, OR RELATING TO, THE FAN OR THE PERFORMANCE THEREOF.
AprilAire’s AGGREGATE LIABILITY HEREUNDER SHALL IN NO EVENT EXCEED THE AMOUNT
OF THE PURCHASE PRICE OF THE FAN. THE SOLE AND EXCLUSIVE REMEDY UNDER THIS
WARRANTY SHALL BE THE REPLACEMENT OF THE FAN.
Some states do not allow limitations on how long an implied warranty lasts or the exclusion or limitation of incidental or consequential damages, so the above limitation may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
For service under this Warranty, contact AprilAire for a Return Material Authorization (RMA) number and shipping information. No returns can be accepted without an RMA. Aprilaire 1015 East Washington Ave, Madison, WI USA TEL 800.334.6011 Record the following information for your records: Serial Number:
WARRANTY REGISTRATION
Visit us online at www.aprilaire.com to register your Aprilaire product. If
you do not have online access, please mail a postcard with your name, address,
phone number, model number of product purchased, and date of installation to:
Research Products Corporation, P.O. BOX 1467, Madison, WI 537011015 E.
Washington Ave., Madison, WI aprilaire.com
61002082 B2209772