RadonAway HS2750 High Suction Fan Variable Wattage Instruction Manual
- June 3, 2024
- RadonAway
Table of Contents
HS2750 High Suction Fan Variable Wattage
HS2750 and HS5500
Installation & Operating
Instructions
HS2750 and HS5500 Series Blower Installation & Operating Instructions
Please Read and Save These Instructions.
DO NOT CONNECT THE POWER SUPPLY UNTIL THE BLOWER IS COMPLETELY INSTALLED. MAKE SURE THE ELECTRICAL SERVICE TO THE BLOWER IS LOCKED IN THE “OFF” POSITION. DISCONNECT POWER BEFORE SERVICING.
- WARNING! Do not use a blower in hazardous environments where a blower electrical system could provide ignition to combustible or flammable materials.
- WARNING! Check the voltage at the blower to ensure it corresponds with the nameplate. See Vapor Intrusion Application Note #AN001 for important information on VI Applications. RadonAway.com/vapor-intrusion
- 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.
- All wiring must be performed in accordance with the National Fire Protection Association’s (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.
- WARNING! In the event that the blower is immersed in water, return the unit to the factory for service before operating.
- WARNING! Do not twist or torque the blower inlet or outlet piping as leakage may result.
- WARNING! Do not leave the blower unit installed on the system piping without electrical power for more than 48 hours. Blower failure could result from this non-operational storage.
- WARNING! TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS, OBSERVE THE FOLLOWING:
a) Use this unit only in the manner intended by the manufacturer. If you have questions, contact the manufacturer.
b) 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.
SYSTEM DESIGN CONSIDERATIONS
1.1 INTRODUCTION
The HS2750 and HS5500 Blowers are intended for use by trained,
certified/licensed, professional radon mitigators. The purpose of these
instructions is to provide additional guidance for the most effective use of
the HS2750 and HS5500 Blowers. 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 codes,
practices, and regulations take precedence over these instructions.
1.2 ENVIRONMENTALS
The HS2750 and HS5500 Blowers 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, HS2750 and HS5500 Blowers should be
stored in an area where the temperature is always greater than 32°F or less
than 100°F. The HS2750 and HS5500 Blowers are thermally protected such that
they will shut off when the internal temperature is above 185°F / 85°C. If the
HS2750 or HS5500 Blower is idle in an area where the ambient temperature
exceeds this shut-off, it will not restart until the internal temperature
falls below 75°C.
1.3 ACOUSTICS
The HS2750 or HS5500 Blower, when installed properly, operates with little or
no noticeable noise to the building occupants. Recommended system design and
installation considerations to minimize noise: When installing the HS2750 or
HS5500 Blower above sleeping areas, select a location for mounting at the
farthest possible distance. Avoid mounting near doors, fold-down stairs, or
other uninsulated structures which may transmit sound. Ensure a solid mounting
for the HS2750 or HS5500 Blower to avoid structure-borne vibration or noise.
The velocity of the outgoing air must also be considered in the overall system
design. With small-diameter piping, in some cases, a “rushing” sound of the
outlet air may be audible. In these instances, the use of a RadonAway Exhaust
Muffler (p/n 24002) is recommended.
1.4 GROUND WATER
Under no circumstances should water be allowed to be drawn into the inlet of
the HS2750 and HS5500 Blowers as this may result in damage to the unit. The
HS2750 or HS5500 Blower should be mounted at least 5 feet above the slab
penetration to minimize the risk of filling the Blower with water in
installations with occasional high water
tables. In the event that a temporary high water table results in water at or
above slab level, water will be drawn into the riser pipes thus blocking
airflow to the HS2750 or HS5500 Blower. The lack of cooling air will result in
the Blower cycling on and off as the internal temperature rises above the
thermal cutoff and falls upon shutoff. Should this condition arise, power down
and disconnect the HS2750 or HS5500 Blower until the water recedes allowing
for a return to normal operation; then reconnect and power on to turn the
Blower back on.
1.5 CONDENSATION & DRAINAGE
WARNING!: Failure to provide adequate drainage for condensation can result in
system failure and damage to the HS Blower. 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 use of small-diameter piping in a system increases the speed at which the air moves. The speed of the air can pull water uphill and, at sufficient velocity, it can actually move water vertically up the side walls of the pipe. This has the potential of creating a problem in the negative pressure (inlet) side piping. For HS2750 or HS5500 Blower inlet piping, the following table provides the minimum recommended pipe diameters as well as minimum pitch under several system conditions. Use this chart to size piping for a system.
All exhaust piping should be 2” PVC.
1.6 SYSTEM MONITOR & LABEL
A properly designed system should incorporate a “System On” indicator for
affirmation of system operation. The HS2750 and HS5500 Blowers come equipped
with a built-in magnetic pressure gauge located on the front cover which
serves this purpose. Other indicator products such as u-tube manometers should
be mounted at least 5 feet above the slab penetration to minimize the risk of
filling the gauge with water in installations with occasional high water
tables. If required, place in a conspicuous location a System Label (such as
RadonAway P/N 1500520) with instructions for contacting the installing
contractor for service and also identifying the necessity for regular radon
tests to be
conducted.
1.7 SLAB COVERAGE
The HS2750 or HS5500 Blower can provide coverage of well over 1000 sq. ft. per
slab penetration. This will, of course, depend on the sub-slab aggregate in
any particular installation and the diagnostic results. In general, sand and
gravel are much looser aggregates than dirt and clay. Additional suction
points can be added as required. It is recommended that a small pit (5 to 10
gallons in size; larger as needed) be created below the slab at each suction
hole. When fine sand or dirt is present it is recommended that the pit be
lined with a material such as clean gravel, size 4, 5, 56, or 6 as classified
(ASTM C33).
1.8 ELECTRICAL WIRING
HS2750 or HSHS5500 Blower models come with an electrical switch box for hard
wiring to a 120V electrical source. All wiring must be performed in accordance
with the National Fire Protection Association’s (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 caulked to prevent water penetration into the box.
A means, such as a weep hole, is recommended to drain the box.
1.9 SPEED CONTROLS
The HS2750 and HS5500 have 4-speed (low, medium, high, maximum) built-in speed
controls. They are not safe for use with solid-state speed controls.
INSTALLATION
2.1 MOUNTING
Mount the HS2750 or HS5500 Blower to the wall studs, or similar structure, in
the selected location with (4) 1/4” x 1 1/2” lag screws (not provided). Ensure
the HS2750 or HS5500 Blower is both plumb and level.
2.2 DUCTING CONNECTIONS
Make a final ducting connection to HS2750 or HS5500 Blower with flexible
couplings. Ensure all connections are tight. Do not twist or torque inlet and
outlet piping on HS2750 or HS5500 Blower or leaks may result.
NOTE: Do NOT solvent weld fittings to unit hubs.
2.3 VENT MUFFLER INSTALLATION
Install the muffler assembly in the selected location in the outlet ducting.
Solvent weld all connections. The muffler is normally installed above the
roofline at the end of the vent pipe.
2.4 OPERATION CHECKS & ANNUAL SYSTEM MAINTENANCE
__ Verify all connections are tight and leak-free.
__ Ensure the HS2750 or HS5500 Blower and all ducting are secure and
vibration-free.
__ Verify system vacuum pressure with Magnehelic. Ensure vacuum pressure
is within the normal operating range and less than the maximum recommended as
shown below:
HS2750: 5” WC (low) / 10” WC (medium) / 15” WC (high) / 20” WC (maximum)
HS5500: 20” WC (low) / 30” WC (medium) / 40” WC (high) / 50” WC (maximum)
(Above are based on sea-level operation, at higher altitudes reduce above by
about 4% per 1000 Feet.)
If these are 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.
HS2750 and HS5500 PRODUCT SPECIFICATIONS
**Model| Speed Setting (Max. Op. Pressure: “WC@Sea Level)|
Typical CFM vs Static Suction WC (Recommended Operating Range)|
****Power* Watts @ 120VAC
---|---|---|---
2.5”| 5.0”| 7.5”| 10.0”| 12.5”| 15.0”|
20.0”| 25.0”**
HS2750
| Low (5”)| 33| 24| n/a| n/a| n/a| n/a| n/a| n/a| 112-123
Medium (10”)| 47| 42| 34| 25| n/a| n/a| n/a| n/a| 199-245
High (15”)| n/a| n/a| 47| 43| 33| 23| n/a| n/a| 266-337
Maximum (20”)| n/a| n/a| n/a| n/a| 48| 43| 24| n/a| 361-463
Shutoff Pressure (“WC @ Sea Level): Low 7.8”, Med 13.5”, High 17.6”, Max 22.6” *Power consumption varies with actual load conditions
__
Model
| Speed Setting (Max. Op. Pressure: “WC@Sea Level)| Typical CFM vs
Static Suction WC (Recommended Operating Range)| | | **Power* Watts
@ 120VAC
---|---|---|---|---|---
5.0”| 10.0”| 20.0”| 25.0”| 30.0”| 35.0”|
40.0”| 50.0”**
__
HS5500
| Low (20”)| 44| 39| 22| n/a| n/a| n/a| n/a| n/a| 243-281
Medium (30”)| n/a| n/a| 53| 41| 36| 22| n/a| n/a| 372-477
High (40”)| n/a| n/a| n/a| 45| 39| 31| 22| n/a| 527-625
Maximum (50”)| n/a| n/a| n/a| n/a| n/a| 34| 29| 17| 591-632
Shutoff Pressure (“WC @ Sea Level): Low 24.5”, Med 34.7”, High 44.6”, Max 52.6” *Power consumption varies with actual load conditions
Number Of Speeds: 4
Volts: 120
Hz: 60
AMPS (Max): 4
Inlet: 3” PVC (3.5” OD)
Outlet: 2” PVC (2.37” OD)
Mounting: Brackets for vertical mount
Weight: HS2750, 18 lbs; HS5500, 19.25 lbs
Size: 17.5” W x 9.0” D x 18.5” H
Minimum Recommended PVC Ducting (2” / 3” / 4” / 6” / 8”): 3” Inlet; 2” Outlet
Storage Temperature Range: 32°F-100°F
Thermal Cutout: 185°F / 85°C
Locked rotor protection
IMPORTANT INSTRUCTIONS TO INSTALLER
Inspect the RadonAway for any damages immediately. RadonAway ® HS2750 or HS5500 Blower for shipping damage within 15 days of receipt. Notify RadonAway ® ® is not responsible for damages incurred during shipping. Install the HS2750 or HS5500 Blower in accordance with all current industry standards and federal, state, county, and local building codes and regulations. Provide a copy of this instruction or comparable radon system and testing information to the building occupants after completing system installation.
Warranty
RadonAway® warrants that the HS2750/HS5500 Blower (the “Blower”) will be free
from defects in materials and workmanship for a period of 12 months from the
date of purchase or 18 months from the date of manufacture, whichever is
sooner (the “Warranty Term”). RadonAway® will replace or repair any Blower
which fails due to defects in materials or workmanship during the Warranty
Term. This Warranty is contingent on the installation of the blower in
accordance with the instructions provided. This Warranty does not apply where
any repairs or alterations have been made or attempted by others, 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 RadonAway®. The Blower
must be returned (at Owner’s cost) to the RadonAway® factory. Any Blower
returned to the factory will be discarded unless the Owner provides specific
instructions along with the Blower when it is returned regardless of whether
or not the Blower is actually replaced under this warranty. Proof of purchase
must be supplied upon request for service under this Warranty.
2-YEAR EXTENDED WARRANTY WITH INSTALLATION BY A FACTORY-CERTIFIED PROFESSIONAL
RadonAway® will extend the Warranty Term of the Blower to twenty-four (24)
months from the date of purchase or thirty (30) months from the date of
manufacture, whichever is sooner, if: (1) the Blower is installed in a
professionally designed and professionally installed active soil
depressurization system or installed as a replacement Blower in a
professionally designed and professionally installed active soil
depressurization system; and (2) proof of an installer Factory Training
Certificate. Upon request, proof of purchase and/or proof of professional
installation may be required for service under this warranty. No extended
warranty is offered outside the Continental United States and Canada beyond
the standard 12 months from the date of purchase or 18 months from the date of
manufacture, whichever is sooner. RadonAway® is not responsible for
installation, removal or delivery costs associated with this Warranty.
EXCEPT AS STATED ABOVE, THE HS2750/HS5500 BLOWERS ARE PROVIDED WITHOUT
WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, WITHOUT
LIMITATION, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. IN NO EVENT SHALL RADONAWAY BE LIABLE FOR ANY DIRECT, INDIRECT,
SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF, OR RELATING TO,
THE BLOWER OR THE PERFORMANCE THEREOF. RADONAWAY’S AGGREGATE LIABILITY
HEREUNDER SHALL NOT, IN ANY EVENT, EXCEED THE AMOUNT OF THE PURCHASE PRICE OF
SAID PRODUCT. THE SOLE AND EXCLUSIVE REMEDY UNDER THIS WARRANTY SHALL BE THE
REPAIR OR REPLACEMENT OF THE PRODUCT, TO THE EXTENT THE SAME DOES NOT MEET
WITH RADONAWAY’S WARRANTY AS PROVIDED ABOVE.
For service under this Warranty, contact RadonAway for a Return Material
Authorization (RMA) number and shipping information. No returns can be
accepted without an RMA. If a factory return is required, the customer assumes
all shipping costs, including insurance, to and from the factory.
RadonAway ®
3 Saber Way
Ward Hill, MA 01835 USA
TEL 978-521-3703
FAX 978-521-3964
Email to: Returns@RadonAway.com
Record the following information for your records:
Serial No. __
Purchase Date: _____
IN115 RevA v1
3 Saber Way, Ward Hill, MA 01835 | radonaway.com