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Thank you for purchasing this fan from SHURflo. Please take a few minutes to read this entire manual before attempting
installation. If you have any questions, please contact your nearest dealer or SHURflo. This unit will work at an infinite
range of speeds in automatic or manual modes at a wide range of temperature settings. Automatic dome-sensing control
allows it to work with most vent covers. Automatic shut-off when it's raining and motor thermal protection are just a couple
of the exciting safety features of this fan.
Standard Features
• True Variable Speed Fan
• Easy-Remove Screen
• Fits Standard 14" x 14" Roof Openings
• Thermally Protected Motor
• High-Amp Dome Safety Control
• Remote-Control
• Intake & Exhaust Operation
• Motorized Dome
• Automatic Rain Sensor
• Auto-Temp Control from 60°F – 100°F
Contents
• 1 Comfort Air™ Fan Unit, including
-1 upper unit
-1 internal flange & 4 screws
Supplied trim fits roofs 3-1/2"-5-1/4"
o
See specifications on page 4 for trim
model # for other roof sizes
• 1 Remote Control
• 1 Remote Wall Mount & 2 screws
• 1 9-Volt DC Remote Control Battery
• 1 Installation and Operation Manual
Location
!
• Fan must be installed with the hinge facing
the direction of travel.
• Locate bi-directional fan at least 3 feet from
any exhaust vent.
Do not install fan in cooking area.
l
911-724-A 04/05
Comfort Air™ Fan with Remote
Installation and Operation Manual
Models 275-3330 / 275-3331
!
Important Information
• SHURflo recommends professional
installation.
• Please read the entire manual before
attempting installation.
• This unit requires 12 VDC Power only.
• This fan uses 5 Amps. Use 6A fuse.
• Follow all local building / electrical codes.
• Black wire is negative ground [ - ].
• Red wire is positive power [ + ].
• Never reverse polarity. Reverse polarity can
damage circuit board.
• Never turn the fan on with the screen
removed.
• Always turn off power before removing
screen.
• Never place any objects in moving blade path.
Tools and Materials Required
• #2 Philips screwdriver
• Scraper
• Wire stripper/crimp tool
• Butyl sealing tape (1/8" x 1" x 6')
• 18 Gauge or larger copper stranded wire
• Insulated wire connectors
• 6-Amp fused circuit
• All weather Silicone sealant
---Rubber roofs require EPDM sealant
• 3/4" or 1" x #8 self-tapping screws [ 28 ] for
roof mounting. Screws removed from old
unit can be used.
page 1 of 4
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Summary of Contents for SHURflo Comfort Air 275-3330
- Page 1 Models 275-3330 / 275-3331 Thank you for purchasing this fan from SHURflo. Please take a few minutes to read this entire manual before attempting installation. If you have any questions, please contact your nearest dealer or SHURflo. This unit will work at an infinite range of speeds in automatic or manual modes at a wide range of temperature settings.
- Page 2 Slide open rear compartment to replace 9V close dome with hand crank. battery. Call your dealer or SHURflo for a replacement remote control. Resetting The Remote Never reset remote control with screen removed. It may be necessary at times to reset the remote to match the Comfort Air™ unit. This would be done to make one remote work for 2 fans, to make 2 fans operate from different remotes, or when purchasing a new remote for an installed unit.
- Page 3 --Check inside ceiling flange clearance. Supplied trim fits roofs 3-1/2” to 5-1/2” thick. RESET Trim can be cut or call SHURflo for other sizes --Holes in roof exterior can be filled with wood putty or sealant to ensure a better seal later.
- Page 4 An owner having a part or unit believed to be defective should contact a local RV dealer, or contact the nearest SHURflo office. SHURflo will not accept the return of parts or units, will not send out parts or units or allow for the repair or replacement of parts or units under this warranty without giving their prior expressed authorization and without proof of date of purchase.
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