Aprilaire ARNHPF Radon Mitigation Kit Instruction Manual
- June 13, 2024
- Aprilaire
Table of Contents
Aprilaire ARNHPF Radon Mitigation Kit
Product Information
The product is the AprilAire High Pressure Fan – Radon (ARNHPF). It is designed for general ventilating use and is not suitable for exhausting hazardous, corrosive, or explosive materials, gases, or vapors. The fan is factory sealed and does not require additional caulking or materials to inhibit air leakage. It is designed to operate year-round in most climates, but for installations in areas with severe cold weather, it is recommended to contact AprilAire for assistance. When not in operation, the fan should be stored in an area where the temperature is between 32 degrees F and 100 degrees F.
Product Usage Instructions
- Before starting the installation process, please read and save these instructions. Do not connect the power supply until the fan is completely installed. Make sure the electrical service to the fan is locked in the off position. Disconnect power before servicing the fan.
- Check the voltage at the fan to ensure it corresponds with the nameplate.
- Normal operation of this device may affect the combustion airflow needed for safe operation of fuel burning equipment. After installation, check for possible backdraft conditions on all combustion devices.
- There are no user serviceable parts located inside the fan unit. Do not attempt to open it. If any issues occur, return the unit to the factory (refer to the warranty for details).
- 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.
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 any questions, contact the manufacturer.
- Before servicing or cleaning the unit, switch off the power at the service panel and lock the service disconnecting means to prevent accidental power switch-on. If 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 qualified person(s) in accordance with all applicable codes and standards, including fire-rated construction.
- Follow the heating equipment manufacturers’ guidelines and safety standards for sufficient air supply, combustion, and exhausting of gases through the flue (chimney) of fuel burning equipment to prevent backdrafting. Consult guidelines published by organizations such as the National Fire Protection Association (NFPA) and the American Society for Heating, Refrigerating and Air Conditioning Engineers (ASHRAE), as well as local code authorities.
- When cutting or drilling into a wall or ceiling, take care not to 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.
Instructions
Please Read and Save These Instructions.
DO NOT CONNECT POWER SUPPLY UNTIL FAN IS COMPLETELY INSTALLED. MAKE SURE
ELECTRICAL SERVICE TO FAN IS LOCKED IN “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 voltage at the fan to insure it corresponds with nameplate.
- WARNING! Normal operation of this device may affect the combustion airflow needed for 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 unit to the factory. (See Warranty, p. 8, for details.)
- WARNING! Do not leave fan unit installed on 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 unit, switch power off at 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 qualified person(s) in accordance with 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 backdrafting. Follow the heating equipment manufacturers’ guidelines and safety standards such as those published by any National Fire Protection Association, and 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 High Pressure 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 High
Pressure 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 High Pressure Fan is factory sealed; no additional caulk or
other materials are required to inhibit air leakage.
ENVIRONMENTALS
The AprilAire High Pressure 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 High Pressure 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 a AprilAire Exhaust Muffler is recommended.
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 AprilAire High Pressure 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.
SLAB COVERAGE
The AprilAire High Pressure Fan is specifically designed for applications with
moderate to tight soils. Slab coverage will primarily depend on the sub-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 AprilAire Radon Fan
best suited for the sub-slab material can improve the slab coverage.
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 space 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 High Pressure 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 High Pressure Fan is
NOT suitable for underground burial. For AprilAire High Pressure Fan piping,
the following table provides the minimum recommended pipe diameter and pitch
under several system conditions.
See p. 6 for detailed specifications.
SYSTEM MONITOR & LABEL
As may be required, system monitors, alarms and labels are available for separate purchase. The ARNHPF fan is compatible with a 4.5” U-Tube Manometer (P/N ARN05M). You may choose to also use an audible alarm (P/N ARNALM). A System Label (provided with manometer ARN05M) with instructions for contacting the installing contractor for service and identifying the necessity for periodic radon tests to be conducted by the building occupants, as may be required, can be conspicuously placed in a location where the occupants frequent and can see the label.
ELECTRICAL WIRING
The AprilAire High Pressure Fan operates on standard 120V, 60Hz AC. All wiring must be performed in accordance with 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
INSTALLATION
The AprilAire High Pressure 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 High Pressure Fan may be mounted directly on the system piping or
fastened to a supporting structure by means of 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 High Pressure Fan vertically with 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 assure that the fan does not contact any building surface to avoid vibration noise. An optional mounting bracket is available, as are foam or rubber grommets and other items for vibration isolation.
SYSTEM PIPING
Complete piping run, as may be required by current industry standards and federal, state, county and local building codes and regulations, 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 thermal boundary and is venting to the outside, installation of insulation around the fan is not required. If desired, a vent muffler, available separately, may be installed at the end of the pipe.
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 & ANNUAL SYSTEM MAINTENANCE
- Verify all connections are tight and leak-free.
- Ensure the AprilAire High Pressure Fan and all ducting are secure and vibration-free.
- Verify system vacuum pressure with 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 regulation
THE FOLLOWING CHARTS SHOW THE PERFORMANCE OF THE AprilAire HIGH PRESSURE FAN
AprilAire High Pressure Fan Product Specifications
Typical CFM Vs. Static Pressure “WC
Model| 0.2”| 1.0”| 1.5”| 2.0”| 2.5”| 3.0”|
3.5”| 4.0”
ARNHPF| 110| 97| 88| 79| 68| 54| 36| 14
Reduce by 10% for High Temperature Operation **Reduce by 4% per 1000 ft. of altitude
Model| Power Consumption 120VAC, 60Hz, 1.8 Amp Maximum| **Maximum
Recommended Operation Pressure* (Sea Level Operation)**
---|---|---
ARNHPF| 70 – 170 watts| 4.0” WC
Model| Size| Weight| Inlet/Outlet**
---|---|---|---
ARNHPF| 10.9”H x 11.9” Dia.| 7 lbs 11 oz| 3.5”OD
(3.0” PVC Sched 40 size compatible)
AprilAire High Pressure Fan Additional Specifications
Model| Recommended Ducting| Recommended PVC Pipe Mounting| Thermal
Cutout
| Insulation Class
---|---|---|---|---
ARNHPF
| 3” or 4” PVC pipe| ****
(optional bracket available)
| 120oC / 248oF| Class B Insulation
IMPORTANT INSTRUCTIONS TO INSTALLER
- Inspect the AprilAire® High Pressure Fan for shipping damage within 15 days of receipt. Notify AprilAire of any damages immediately. AprilAire is not responsible for damages incurred during shipping. However, for your benefit, AprilAire does insure shipments.
- There are no user serviceable parts inside the fan. Do not attempt to open the housing. Return unit to factory. (See Warranty below).
- Install the AprilAire High Pressure Fan in accordance with all current industry standards and federal, state, county and local building codes and regulations.
- Provide a copy of these instruction or comparable radon system and testing information to the building occupants after completing system installation
Warranty
AprilAire® warrants that the Fan will be free from defects in materials and
workmanship for a period of 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 which fails due to defects in
materials or workmanship during the Warranty Term. This Warranty is contingent
on installation of the Fan in accordance with 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. Warranty does not cover
damage in shipment unless the damage is due to the negligence of AprilAire®.
The Fan must be returned (at owner’s cost) to the AprilAire® factory. Any Fan
returned to the factory will be discarded unless the ownerprovides specific
instructions along with the Fan when it is returned regardless of whether or
not the Fan is actually replaced under this warranty. If factory return is
required, the customer assumes all shipping costs, including insurance, to and
from 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 date of installation or 66 months from 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
Continuous Duty 3000 RPM Thermally Protected Residential and Commercial Rated
for Indoor or Outdoor Use
1015 E. Washington Ave., Madison, WI
aprilaire.com