AC Infinity AC-BFP4 User manual

USER MANUALUSER MANUAL
AUTO BOOSTER FAN
WITH PRESSURE SWITCH

3
WELCOME
Thank you for choosing AC Infinity. We are committed to product quality and friendly customer service.
If you have any questions or suggestions, please don’t hesitate to contact us. Visit www.acinfinity.com
and click contact for our contact information.
EMAIL
[e-mail]
WEB
www.acinfinity.com
LOCATION
Los Angeles, CA

4
PRODUCT
Automatic Duct Booster Fan 4"
MODEL
AC-BFP4
UPC-A
819137023789
MANUAL CODE BFP2211X1

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MANUAL INDEX
Manual Index .................................................................................
Product Warning ............................................................................
Key Features .................................................................................
Product Contents ...........................................................................
Installation: Mounting .....................................................................
Installation: Configuration Setup ....................................................
Powering and Setup ......................................................................
Cleaning ........................................................................................
Programming .................................................................................
Recalibration ..................................................................................
FAQ ...............................................................................................
Other AC Infinity Products .............................................................
Warranty ........................................................................................
Page 5
Page 6
Page 8
Page 9
Page 11
Page 16
Page 17
Page 18
Page 20
Page 23
Page 26
Page 27
Page 28

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Ensure your power source conforms to the electrical requirements of this product.
Check your local code restrictions for additional safety measures that may be needed for a proper
code compliant installation.
Read all instructions before installing and using this product.
If you are unfamiliar or have doubts about performing this product’s installation, seek the services of a
qualified, trained, and licensed professional. Inappropriate installation will void this product’s warranty.
Do not attempt to hardwire this product. Performing any retrofitting actions may result in personal
injury and/or electrical damage, and will void this product's warranty.
This product must not be used in potentially hazardous locations such as flammable, explosive,
chemical-laden, or wet atmospheres.
Ducted products must always be vented to outdoor areas.
Do not cover power cords with rugs or other fabric materials.
This product has rotating parts. Safety precautions should be exercised during the installation,
operation, and maintenance of this product.
Do not insert or allow fingers or foreign objects to enter any ventilation or exhaust openings as it may
cause electric shock, fire, or damage to this product. Do not block or tamper with this product in any
manner while it is in operation.
Do not depend on the on/off programming as the sole means of shutting power from this product.
Unplug the power cord before installing, servicing, or moving this product.
Do not operate this product while its cord is damaged, or if it malfunctions, has been dropped, or is
damaged in any manner.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
PRODUCT WARNING
TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS,
OBSERVE THE FOLLOWING:

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PRODUCT WARNING
OPERATING TEMPERATURE
Do NOT let the ambient operating temperature
exceed 140°F (60°C), as it may damage this
product or cause it to malfunction.
DO NOT
EXCEED
140°F
DIFFERENTIAL PRESSURE SWITCH
The differential pressure switch has positive
and negative outlets. Do NOT block or insert
the tube over the negative pressure outlet.
-
+
MOVEMENT AFTER INSTALLATION
Do NOT move the fan after it is fully installed.
Movement of the fan unit may result in false
triggers as a result of changing differential
pressure and will require recalibration. See
page 23 for recalibration steps.

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KEY FEATURES
DIGITAL CONTROLLER
5-speed controller featuring
OFF, ON, and AUTO Modes
for custom pressure triggering
and activation levels.
QUIET PWM MOTOR
PWM-controlled motor features
precise speed control, reduced
rotor noise, and energy-
efficient EC voltage.
IP44 PROTECTION
The inline duct fan is sealed
to Ingress Protection 44
standards, rated with high
resistance to liquids and dust.
STATOR BLADE FANS
Hydro-mechanical stator
blades enable efficient
airflow delivery in high static
pressure environments.
PRESSURE SENSITIVE
Differential pressure-sensing
switch automatically activates
the fan whenever positive
pressure is detected.
DUAL BALL BEARINGS
The motor contains ball bearings
with an estimated 67,000 hour
lifespan. Enables the fan to be
mounted in any direction.

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PRODUCT CONTENTS
WIRE
MOUNT
(x6)
PROBE
MOUNT
(x1)
WOOD SCREWS
(WALL HANG)
(x4)
DUCT FAN
SYSTEM
(x1)

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PRODUCT CONTENTS

11
INSTALLATION
STEP 2
Remove the motor box from the flange bracket.
Remove the wind circle between the motor box
and the intake flange.
STEP 1
Remove the tube from the differential
pressure switch.
Unscrew the bolts on both sides from the
plastic rings using a Phillips screwdriver.
MOUNTING

12
INSTALLATION
STEP 4
Drill four holes into the marked locations. Make
sure your mounting area is structurally sound
and free from obstruction.
STEP 3
Use the flange bracket to set your desired fan
position. Mark the four mounting holes.
Your fan MUST be mounted at least 5 ft. away
from the ventilation outlet.
MOUNTING

13
INSTALLATION
STEP 6
Align the flange bracket’s holes with the wall
anchors. Screw in four wood screws with a
screwdriver or drill to secure the flange bracket.
Make sure its airflow arrow is pointing in your
desired direction.
STEP 5
If you are mounting onto anything other than a
wood support or stud, insert the included four
wall anchors into the drilled mounting holes.
You may need to use a hammer to secure them
through the holes.
MOUNTING

14
INSTALLATION
STEP 8
Slide the motor box back into the flange bracket,
making sure its airflow arrow is pointing in the
same direction as the flange bracket’s arrow.
Screw the bolts back into the plastic rings to
secure the motor box to the flange bracket.
Place the tube back onto the differential
pressure switch. Make sure to insert the tube
over the positive outlet. See page 7 for more
information.
STEP 7
Place the wind circle back into the intake flange.
MOUNTING

15
INSTALLATION
STEP 9
When installing ducting, use duct clamps (sold
separately) to secure it to either end of your
duct fan, making sure there is a tight seal.
Tighten the duct clamps using a
flathead screwdriver.
MOUNTING
Do NOT move the fan after it is fully installed.
Movement of the fan unit may result in false
triggers as a result of changing differential
pressure and will require recalibration. See
page 23 for recalibration steps.

16
INSTALLATION
CONFIGURATION SETUP
ONMIDIRECTIONAL MOUNTING
Your fan can be mounted horizontally, vertically,
or diagonally in extended ductwork, crawlspace,
and dryer exhaust applications. It must be
mounted tightly with your desired ducting.
To achieve optimal ventilation, make sure your
fan's mounting location is free of obstruction as
specified on the product warning page.
Make sure your exhaust is flowing towards your
ventilation source using the arrow as a guide.
Do NOT move the fan after it is fully installed.
Movement of the fan unit may result in false
triggers as a result of changing differential
pressure and will require recalibration. See
page 23 for recalibration steps.

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POWERING AND SETUP
STEP 1
Plug your fan’s power cord into an AC power
outlet to power your fan.

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CLEANING
STEP 2
Use a damp cloth to clear the impeller and fan
blades of any dust and debris. Remove the wind
circle in between the motor box and input flange.
STEP 1
Unplug your fan to completely unpower it.
Then remove the motor box from the mounting
flange. Refer to steps 1-2 on page 11 to learn
how to remove the motor box.

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CLEANING
STEP 4
Secure the motor box onto the mounting
flanges. Refer to steps 7-9 on page 14-15 to
learn how to secure the motor box.
STEP 3
Clear the stator blades of any dust and debris
on the opposite end. Clean the area inside the
output and exhaust flanges.

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PROGRAMMING
1. MODE BUTTON
Cycles through the controller's modes:
OFF, ON, and AUTO.
2. SPEED BUTTON
Cycles through the levels to select a fan speed
from 0-5. Pressing the speed button increases
the fan speed in one unit increments.
1 2 3 4 5
OFF ON AUTO
1 2