Maxxair MAXXFAN 4401K User manual

INSTALLATION INSTRUCTIONS,
INFORMATION AND OPERATING GUIDE
FOR MAXXFAN®and MAXXFAN® Plus MODELS
4000K • 4001K • 4050K • 4301K • 4401K • 4500K • 4501K • 4801K
WARNING! To reduce risk of re, injury to persons or damage to property, use only
in the manner intended by AIRXCEL, INC. Should you have questions, please contact
AIRXCEL/MAXXAIR VENTILATION SOLUTIONS Customer Service at 316.832.4357.
P/N: 11B90000K
REV B, 01-2016
READ AND SAVE THESE INSTRUCTIONS
NOTE: Refer to Installation Instructions, Information and Operation Guides regarding the
model you have purchased.
The MAXXFAN installs into a standard RV roof opening of 14 by 14 inches.
To determine if your roof opening is correctly sized, simply remove the interior ceiling garnish
trim ring of your existing roof vent and measure the ceiling opening or verify the opening is
large enough by sliding the MAXXFAN interior Garnish trim ring into the opening.
The MAXXFAN is designed for a minimum roof thickness of 2 inches to a maximum of
6 1/2 inches. If your roof thickness is less than 2 inches, build additional thickness at the
ceiling opening using wood or other suitable material.
The MAXXFAN requires a minimum 12 Volt DC, 5 amp service. Conrm that the circuit
you intend to use will accommodate the additional load. Use the proper gauge stranded
wire for electrical connections.
MAXXFAN®

STEP 1
MAXXFAN requires a 14” x 14” roof opening, if
you are replacing another type already installed,
remove the old existing roof vent. Remove all old
roof sealant for a minimum of 2” entirely around
the roof opening.
Place the MAXXFAN into the roof opening
and trace a pencil line around it to verify the
clean seal area that will be required. Note that
the MAXXFAN must be centered in the roof
opening with the hinge of the lid facing the front
of the vehicle.
CAUTION: When installing your MAXXFAN, only
use a caulking/sealant compatible with the ange
(plastic product) and the roof surface. DO NOT
use materials containing solvents such as or similar
to Xylene, Toluene, Methyl Ethyl Ketone, Acetate
or Acetone as they can damage the ange. Also,
Polysulde (Thiokol) type sealants must be avoided.
If in doubt, please contact the manufacturer of your
RV for further information.
STEP 2
Prior to installing the MAXXFAN into the roof
opening, apply a continuous strip of BUTYL
tape or equivalent to the underside of the ange,
making sure to cover the screw holes.
CAUTION: Disconnect main vehicle power before
connecting 12 volt DC power to the MAXXFAN!
STEP 3
Using the insulated 16 gauge electrical connectors
provided, connect the vehicle’s 12 volt power to
the two MAXXFAN power wires located on the
driver side of the MAXXFAN.
NOTE: The MAXXFAN black wire identied with a tag showing
(+) must be connected to the vehicle 12 volt (+) positive supply.
STEP 4
Insert the MAXXFAN into the opening with the lid
hinge facing the front of the vehicle and centering
the MAXXFAN in the opening. Make sure the
power wires slide to the interior and do not become
entangled. Using the sixteen (16) screws provided,
screw the ange to the roof at each raised ring
dimple location along the ange. Screw into the
dimple to pierce the ange, making sure not to
overtighten the screws to avoid cracking the ange.
STEP 5
After the MAXXFAN has been installed, remove
the excess BUTYL caulk that may have squeezed
out. Using a sealer such as Dicor self-leveling lap
sealant or similar caulking, apply a daub over every
exposed screw head. In addition, apply a bead
(approximately 3/16”) along the outside edge of the
ange all the way around the vent.
THIS COMPLETES THE ROOF TOP PORTION OF THE INSTALLATION
NOTE: Re-apply 12 volt vehicle power. The MAXXFAN, excluding the 4301K and 4401K models, will
emit a beeping sound to indicate power is properly connected. In addition, the Remote Control model
will automatically close the vent cover. If the MAXXFAN does not beep when power is connected, go
back to step #3. Conrm that proper connections were made and 12 volt power is on and available. This
MAXXFAN incorporates a self-resetting fuse on the circuit board located in the ceiling assembly. It can
be reset by removing and re-applying power. If your fan fails to operate or needs reset, contact Customer
Service at 316.832.4357 for assistance or solicit the aid of an electrical technician.
FOR REMOTE CONTROL MODELS: Please refer to the REMOTE CONTROL OPERATING GUIDE
in this manual for use and testing of your remote control. Install two AAA batteries, follow instructions,
aim remote at the ceiling unit and test your fan. The Remote Control comes with a cradle for wall mount
storage of the Handheld Remote Control. Mount the cradle to your wall using the screws provided.
INSTALLATION INSTRUCTIONS - ALL MODELS
2 5
4

STEP 6
The interior Garnish Trim Ring must be trimmed
to t your particular RV roof thickness. To
accomplish this, measure the distance from
the vehicle ceiling surface to each corner of the
MAXXFAN Control Plate.
Most RV roofs have some slope, so measuring
each corner is necessary. The Garnish ring
should be cut 1/4” to 1/2” longer than the
dimensions measured at each corner.
In Picture #6 to the right, the installation measures
3 and 1/2” from the ceiling (this is an example
only) to the Control Plate. After adding 1/2” as
in this example, using a ruler, place a mark at 4”
on each corner of each side of the Garnish Ring
(refer to 6A below). Once marked, draw a line
connecting all 4” markers on the outside of the
Garnish ring and trim accordingly (refer to 6B to
the right).
STEP 7
Complete the installation by placing any excess
wiring to the inside of the roof opening and sliding
the Garnish Ring into position. Fasten in place by
using the four painted at head screws provided.
NOTE: DO NOT probe or tamper with the thermostat
sensor or IR sensor shown in illustration #6 above.
MEASUREMENTS STATED
IN STEP 6 ARE USED AS AN
EXAMPLE FOR ILLUSTRATION
PURPOSES ONLY
7
CONGRATULATIONS!!!
You have successfully completed the
installation of your new MAXXFAN.
If you have questions, please visit
Airxcel.com or call us at 316-832-4357.
FOR REMOTE CONTROL MODELS:
Attach the included cradle to wall with (2) #6
screws provided. Handheld Remote Control may
be placed into wall cradle for storage.
6A GARNISH RING
6B GARNISH
RING
6
IR RECEIVER
3 1/2”
CEILING

AIRXCEL, INC. - RV PRODUCTS DIVISION / MAXXAIR
Ventilation Solutions warrants to be free of manufacturing
defects, regardless of ownership for a period of two (2)
years from the original date of purchase. You must keep
your original sales receipt. This Limited Warranty
does not include “Acts of God,” failure due to misuse,
improper installation or accidental / incidental damages.
Please call AIRXCEL, INC. at 1-316-832-4357 if you
have any questions or need assistance.
Please have your original sales receipt and MAXXFAN Serial Number readily
available. AIRXCEL will correct the confirmed defect within 45 days by repair or
replacement without charge for materials and labor. This limited warranty does
not cover any freight costs for the return of the product to or from AIRXCEL, INC.
or costs associated with installation, removal or reinstallation of the product.
We invite your comments and suggestions regarding our products. Any
information you supply is for AIRXCEL / MAXXAIR’s internal use and will not be
shared or sold to others.
The Serial Number for your MAXXFAN is located on the fan control plate under the round insect
screen frame. (Your serial number may or may not be located in the same position as referenced
in the above image). Reference your operating guide. Rotate the four retaining knobs 180° and
remove the screen to view. DO NOT OPERATE the MAXXFAN with the screen removed.
CAUTIONS AND CARE OF YOUR MAXXFAN®
This product has been manufactured using prime UV stabilized Polymers for maximum
toughness and durability. However, the use of caustic or solvent based chemicals can
cause cracking and product failure.
PLEASE CLEAN ALL PARTS WITH MILD SOAP AND WATER ONLY.
Do not use Petroleum Containing Additives or Solvent Based Products on any of the
MAXXFAN’s components or its corrosion resistant hardware.
LISTED BELOW ARE SOME KNOWN CHEMICAL PRODUCTS TO BE
AWARE OF:
NON COMPATIBLE CHEMICALS - DO NOT USE THESE:
Ketones, Esters, Acetone or other like solvents, Halogenated Hydrocarbons,
Amines, Aromatic Hydrocarbons, (Loctite Formulas), or any products containing
references to: chemicals that are not to be used on plastics.
GENERALLY COMPATIBLE (But should be used in low concentration
where possible)
Acids, Alcohol, Alkalis, Aliphatic Hydrocarbons, Mild Soap Solution (avoid strong
Alkaline Material), Silicone Oil or Greases (avoid those containing Aromatic
Hydrocarbons or other additives). Review the contents of your cleaning materials
carefully.
For additional information regarding your NEW MAXXFAN® or MAXXFAN® Plus,
please refer to the INFORMATION AND OPERATION GUIDES
FOR YOUR PARTICULAR MODEL ON THE FOLLOWING PAGES.
MAXXFAN®2 YEAR LIMITED WARRANTY
SERIAL NUMBERRETAINING KNOB

INFORMATION AND OPERATING GUIDE
FOR MAXXFAN®MANUAL OPENING KEYPAD MODELS
4301K • 4401K
KNOB, VENT LID OPEN/CLOSE
Manual Opening
Pull to unlock prior to turning. Rotate Knob
clockwise to Close Vent Lid; Rotate Knob
counter-clockwise to Open Vent Lid. Push
“IN” to lock when Vent Lid is open or closed.
It may be necessary to slightly rotate the
knob to properly align it while pushing it up
to lock.
Do not use excessive force when operating
Knob.
KEYPAD CONTROLS
Use Keys on Keypad to control MAXXFAN
functions (see descriptions below).
INSECT SCREEN RETAINER KNOB
Rotate all 4 knobs 1/2 turn to remove screen.
Caution: Never operate fan with screen removed.
CEILING FAN MODE
With the fan motor running, close the Vent Lid to enter Ceiling Fan Mode. The fan motor will
continue to run and circulate air within the RV cabin.
SERIAL NUMBER LABEL
The serial number label is located underneath the round insect screen.
NOTE: The MAXXFAN is designed to be fully opened or fully closed when the vehicle is
moving.
KEYPAD CONTROLS
FOR MAXXFAN®MANUAL OPENING KEYPAD MODELS
4301K • 4401K
CAUTION: When removing insect screen for cleaning, turn the MAXXFAN OFF and remove the vehicle
12 volt power to the MAXXFAN. When cleaning your MAXXFAN, use only a mild detergent solution.
FAN ON
1-2-3-4
FAN
OFF
Turns the Fan Motor ON to the last
selected speed
When the fan is running, cycles
through four (4) speeds, once HIGH
SPEED is reached, fan motor cycles
back to LOW SPEED
Turns the Fan Motor OFF at any se-
lected speed
FAN
OFF
FAN ON
1-2-3-4

INFORMATION AND OPERATING GUIDE
FOR MAXXFAN®Plus MODELS
4000K • 4001K • 4050K • 4500K • 4501K • 4801K
KNOB, VENT LID OPEN/CLOSE
Manual Opening Models
Pull to unlock prior to turning. Rotate Knob
clockwise to Close Vent Lid; Rotate Knob
counter-clockwise to Open Vent Lid. Push
“IN” to lock when Vent Lid is open or closed.
Automatic Opening Models
Allows closing of the vent lid in the event of
RV power loss. This knob does not lock.
Do not push in or pull out. Rotate knob
clockwise to close vent lid; rotate knob
counter-clockwise to open vent lid.
Do not use excessive force when operating
Knob.
KEYPAD CONTROLS
Use Keys on Keypad to control MAXXFAN
functions (see descriptions on next page).
INSECT SCREEN RETAINER KNOB
Rotate all 4 knobs 1/2 turn to remove screen.
CAUTION: Never operate fan with screen removed. When removing screen for cleaning, turn
the MAXXFAN OFF and remove the vehicle 12 volt power to the MAXXFAN. When cleaning your
MAXXFAN, use only a mild detergent solution.
RAIN SENSOR - Automatic Models only. If the Rain Sensor circuit detects moisture, it will
TURN OFF the fan and close the lid. If ANY key is pressed when the Rain Sensor is still
wet, the fan will BEEP THREE (3) TIMES. Press the FAN ON key to restart the fan after the
Rain Sensor has dried.
CAUTION: If the lid is opened MANUALLY, the RAIN SENSOR will not close the MAXXFAN lid.
CEILING FAN MODE
With the fan motor running, close the Vent Lid to enter Ceiling Fan Mode. The fan motor will
continue to run and circulate air within the RV cabin.
SERIAL NUMBER LABEL
The serial number label is located underneath the round insect screen.
NOTE: The MAXXFAN is designed to be fully opened or fully closed when the vehicle is
moving.
THERMOSTAT
TEMPERATURE SENSOR

KEYPAD CONTROLS
FOR
MAXXFAN®Plus MODELS
4000K • 4001K • 4050K
4500K • 4501K • 4801K
NOTE: A beeping sound will
conrm each key press
ON/OFF: Use this key to start
the fan or to tum off the fan. On
Automatic Opening Models the lid
will also open or close when the fan is turned on or off. On Manual Opening Models
pushing this key while in Auto Mode will exit Auto Mode, turn off the fan and the lid will stay
in the position you selected. On Automatic Opening Models this button will exit Auto mode,
tum the fan off, and close the lid.
IN/OUT: Use this key to reverse the direction of the fan, the fan will slow down and
pause for two (2) seconds before resuming operation in the opposite direction. Note: In
Auto Mode the fan direction is automatically positioned to Exhaust, but may be overridden
and changed to Intake by depressing this key. Note: Some models are Exhaust Only. On
these models this key is deleted.
AUTO: Auto Mode allows the thermostat to turn the fan ON and OFF depending on
the thermostat setting. Press this key once for less than three (3) seconds to enter Auto
Mode, three (3) quick beeps will conrm the MAXXFAN has entered Auto Mode. To EXIT
Auto Mode, press the ON/OFF key. Initial factory set point for the thermostat is 78°F.
The green LED will light to indicate the MAXXFAN is in Auto Mode. To adjust, follow
instructions below:
If no previous thermostat temperature was entered, or you wish to change a previous set
temperature, press the HOLD TO SET key for more than 3 seconds and you will hear one
long beep and the thermostat will be reset to 78°F. To further adjust the set temperature,
if desired, use the (+) or (-) Arrow keys to adjust at 1°F per press. The fan will emit a
beeping sound to conrm this setting. If a previous thermostat temperature was entered,
the fan will remember this temperature setting and the next time you enter Auto Mode,
the fan will start ventilating automatically as directed by the thermostat. The fan speed
will automatically adjust based on the cabin temperature. As cabin temperature rises, the
fan increases in speed. Note: If 12 volt RV power is removed from the MAXXFAN, the
thermostat will be reset to 78°F.
ARROW
When in Auto Mode: Use the (+) & (-) Arrow keys to adjust the thermostat set temperature
up or down by 1°F per press.
When in Manual Mode: Use the (+) & (-) Arrow keys to adjust the fan speed up or down.
When the fan speed reaches either the maximum or minimum speed, the fan will respond
with 2 quick beeps to indicate this.
ARROW KEYS PRESSED TOGETHER: Automatic Lift Models Only
Press the (+) & (-) Arrow keys at the same time to Open or Close the lid. The fan motor
will remain in its current state.
RAIN SENSOR: Automatic Opening Models Only
Press this key to tum the Rain Sensor OFF. This will deactivate the Rain Sensor. The
red LED will light to indicate that the Rain Sensor is deactivated. Use caution when
deactivating the Rain Sensor as rain could enter your RV. If the Rain Sensor circuit
detects rain, it will turn off the fan and close the lid. The red LED will blink to indicate
that the Rain Sensor has shut the fan off. Press the Rain Sensor key again to reset the
fan and extinguish the blinking LED. Note: CAUTION, the Rain Sensor will not close the
MAXXFAN lid if the lid is opened manually with the knob.

For additional product information please visit www.AIRXCEL.com
AIRXCEL, INC. - RV Products Division / MAXXAIR
3050 N. St. Francis St. • Wichita, KS 67219 • 316-832-3400
REMOTE CONTROL OPERATING GUIDE
WIRELESS REMOTE CONTROL FOR
MAXXFAN®Plus MODELS: 4500K • 4501K
FAN ON & POWER OFF - Press this button:
• To start the fan
• To turn the fan off
• To exit Auto Mode
VENT LID POSITION - Press this button to open or close the vent lid
• While the fan is running in Manual Mode press once to close the vent lid and
enter “Ceiling Fan” Mode.
NOTE: This button is not active in Auto Mode. If the fan loses 12volt RV power
or power is removed from the fan, use the knob located at the ceiling to manually
open or close the vent lid if desired.
AIR EXHAUST / INTAKE - Press this button to reverse the fan from intake
or exhaust
NOTE: In Auto Mode, the fan direction is automatically positioned to Exhaust, but
may be overridden and changed to Intake by depressing this key.
FAN AUTO MODE - Press this button to enter Auto Mode
• Auto Mode allows the fan lid to automatically open and the fan motor to
operate as dictated by the thermostat set point temperature. Once the cabin
temperature cools and reaches the set point temperature, the fan lid will close
and the fan motor will shut off.
• Pressing this button while in Auto Mode will shut off Auto Mode, close the vent lid
and shut off the fan motor.
THERMOSTAT SET TEMPERATURE
TEMP + ~ Press this button to increase the Set Temperature for Auto Mode.
TEMP - ~ Press this button to decrease the Set Temperature for Auto Mode.
NOTE: The thermostat ranges is from 29°F to 99°F or -2°C to 37°C. To change from Fahrenheit to Celsius on
the temperature display, press and hold both set temperature keys simultaneously.
FAN SPEED
Fan Speed + ~ Press this
button to increase the fan
speed. The fan has ten
speeds.
Fan Speed - ~ Press this
button to decrease the fan
speed. The fan has ten
speeds.
NOTE: When the fan speed
reaches either the maximum
or minimum speed, the fan
will respond with 2 quick beep
sounds to indicate this.
LOW BATTERY
INDICATOR
• When the battery is at full
charge, three black power
bars are displayed.
• One or zero power bars
displayed indicates the batteries need replacement.
TRANSMISSION SIGNAL
• This symbol is displayed on the screen when any button is pressed to indicate the signal was transmitted
to the fan.
• A beep sound from the ceiling unit indicates the signal from the remote control was received by the fan.
CEILING FAN
SET
TEMPERATURE
TRANSMIT LOW BATTERY
INDICATOR
AIR DIRECTION
INDICATOR
CEILING FAN MODEFAN SPEED
VENT LID
POSITION
FAN OFF
INDICATOR
VENT LID IN
AUTO MODE
FAN ON
INDICATOR
ROOM
TEMPERATURE
AUTO MODE
INDICATOR
ENJOY your new MAXXFAN® in ALL WEATHER CONDITIONS with the
NEW FANMATE®featuring EZClipTM Hardware for
TOOL FREE INSTALLATION. Visit AIRXCEL.com for details.
Remove protective lm from
Display Screen