The Windmill AC
Owner’s Guide
2
It feels better in
here already.
We started Windmill to help you feel more comfortable at
home. We hope your new AC keeps you living breezy for
many years to come!
Thanks for choosing Windmill,
Mike & Team
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Table of contents.
1
3
4
5
6
2
Important safety instructions
Get to know your AC
Cleaning & maintenance
Environmental impact...........................................................
Warranty..........................................................................................
FCC statement.............................................................................
4
10
17
5
11
18
19
20
6
12
7
13
8
9
15
16
Let’s chat safety............................................................................
Unit overview..................................................................................
How to clean & change your lter....................................
Installation.......................................................................................
Labels & important information.........................................
How to clean & store your AC..............................................
Electrical power............................................................................
Controls overview........................................................................
Operation.........................................................................................
Display & operating overview..............................................
Refrigerant.......................................................................................
Important things to highlight.............................................
Remote control.............................................................................
4
Let’s chat safety.
The Windmill AC is a large home appliance with many
moving parts. As you can imagine, there are a lot of
important safety instructions that will help keep you,
others, your home, and your AC safe.
PLEASE READ ALL SAFETY AND INSTALLATION
INSTRUCTIONS BEFORE INSTALLATION AND USE
Use your new window air conditioner only as instructed
in this Owner’s Guide and the Installation Guide. These
instructions, cautions, and warnings are not meant to cover
every possible situation or condition that may come up
during installation and operation. As with any appliance,
common sense and caution must be used when installing,
operating, cleaning, and maintaining your window AC.
A couple of important symbols to know:
(you’ll see them throughout this guide)
You (or others) may be killed or seriously
injured if you do not follow these
instructions.
You (or others) may be injured or cause
damage to your AC or property if you do
not follow these instructions.
WARNING
CAUTION
This Owner’s Guide and the Installation Guide are available
at: windmillair.com/support.
Please read both guides before setting up and using
your AC. For installation help, please visit windmillair.
com/support or email us at support@windmillair.com.
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Installation.
WARNING CAUTION
● Before using your AC, the unit must be properly installed according to
the instructions in the included Installation Guide. Please follow this
Installation Guide exactly. Keep the Installation Guide for future use when
removing or re-installing this AC.
● This product is not intended to be installed by children or people with
reduced physical, sensory, or mental capabilities.
● Be careful when unpacking and handling your AC. There may be sharp
edges, especially near the front and rear coils.
● Keep all packaging materials away from children. These materials can be a
choking or suffocation hazard to children.
● Store and install your AC unit where it will not be exposed to temperatures
below freezing or exposed to dangerous, non-normal outdoor conditions
(like high temperatures or excessive dust and pollution).
● Do not store or install this AC unit near gasoline or other ammable liquids
or vapors.
● During installation, make sure you do not damage your or nearby property
with the AC’s heat exhaust and condensation. Make sure you leave at least
two feet of clearance to the sides and back of the unit.
FOLLOW THE WARNINGS BELOW TO MINIMIZE THE
RISK OF PROPERTY DAMAGE, SERIOUS INJURY, OR
DEATH.
Important safety instructions.
This is NOT the Installation Guide. Please use the included
Installation Guide to install your AC and follow all warnings and
cautions. The Installation Guide is included in the box and can also be
found at windmillair.com/support.
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Electrical power.
WARNING
● The unit, power cord, and plug are not customer-serviceable. Do
not replace or repair the cord yourself if damaged or not working.
Replacement or repair may only be done by a licensed and authorized
electrician using parts from the manufacturer only, and in accordance
with the National Electric Code. Contact Windmill for manufacturer
approved replacement parts.
● Do NOT use extension cords, surge protectors, or adapters with this AC
unit.
● To protect against potential shock hazard, Windmill’s power cord comes
with a three-prong grounding plug. Use this with a standard three-slot
grounding wall outlet. See diagram below. If you are not sure your outlet
can support the AC unit, consult a qualied, licensed electrician to ensure
your wall outlet is properly grounded, set up, and ready for use.
FOLLOW THE WARNINGS BELOW TO MINIMIZE
THE RISK OF PROPERTY DAMAGE, SERIOUS
INJURY, OR DEATH.
Important safety instructions
● Do not cut or remove the third ground prong from the power plug.
● Use a dedicated circuit.
● Do not start or stop the AC by using the power cord. It is not meant to be
an ON/OFF switch. Use the power button on the unit, app, or remote.
● Do not pull on the power cord. To unplug, grip plug securely and pull
straight out.
● Take care to avoid damaging the power cord when installing, lifting,
storing, or moving the AC, do not damage the power cord. Keep the power
cord away from any heat sources. Do not set heavy objects on the power
cord.
● Only run the AC unit with the assembled, protective metal housing
securely in place. Exposing the internal parts could lead to electrical and
mechanical damage, and may lead to serious injury or death.
● The conductors inside this cord are surrounded by shields. Examine the
cord for damage often. Do NOT use this product if the shields become
exposed.
● Do not modify, cut, damage, or tamper with the product, power cord, or
plug. This can expose you to the risk of serious injury or death and will void
the Limited Warranty.
Power cord includes a current device that can detect damage. TEST and
RESET buttons are provided on the plug case. Never press the TEST button
when the unit is operating. This device should be tested often when the unit
is NOT operating. To test the device, press the TEST button. The RESET button
should pop out. Then, press the RESET button, which should stay engaged.
For proper operation, make sure the RESET button is pressed in. If the TEST
button does not cause the RESET button to pop out or if the RESET button
will not stay engaged, do NOT use the AC unit. Contact Windmill support at
support@windmillair.com.
Outlet information
Standard 120 V, 3-wire grounding
receptacle rated 15 A / 120 VAC / 60 Hz
Power information
Use 15 A time delay fuse or 15 A circuit
breaker.
For 120 V
7
Operation.
WARNING CAUTION
● Follow all installation, repair, operation, and maintenance instructions
carefully. Keep this manual for future use.
● If you notice anything abnormal or broken as it relates to your AC (weird
smell, smoke, missing parts, etc.), unplug your unit immediately and
contact Windmill support.
● Do not modify or rewire the controls or display.
● Do not touch the AC, power cord/ plug, or wall outlet with wet hands.
● Do not insert ngers or any object into the air vents in the front of the unit.
Not only can this seriously injure you, it can also break your AC unit.
● Keep water and all liquids away from the AC unit and front air vents.
If water or liquid does get into the AC, turn off power using the power
button on the unit and then unplug the unit. Contact Windmill at
support@windmillair.com before turning on your unit.
● If you won’t be using your AC for a while, leave it unplugged.
● Unplug your AC before installing, removing, cleaning or servicing.
● Do not climb on the AC unit (inside or outside).
● Do not place or hang objects on the AC unit (inside or outside).
● If there is a gas leak in the home, do not operate this or any other
appliance.
● Do not press, play with, or tamper with the coils at the front or back of the
unit.
● Do not clean the inside of the AC unit. Only authorized personnel can
clean the interior of the product. Contact Windmill support.
● Use only water, a mild dishwashing detergent, and soft cloth to clean the
outside parts of the unit. Do not use strong or solvent-based detergents
(this can lead to damage, electric shock, or re).
● This AC unit should not be used by children or those with impaired
physical, sensory, or mental capabilities, unless supervised by someone
responsible for their safety.
● Never allow children to play with or climb on the AC unit.
● Do not block the airow in the front, back, or sides of the unit.
● Always run the AC unit with the air lter properly in place.
● Do not drink the water that is produced by the unit during normal
operation.
● Avoid using a heat-generating appliance (e.g. dryer) while you’re using
your AC unit.
● Avoid prolonged exposure to the airow (cold and/or hot) of the AC unit.
● Do not use the remote control if the battery leaks. Seek medical attention
if this uid gets on your skin or in your mouth.
● Keep the remote control away from children. The remote control contains
button/coin cell batteries. A child that swallows the battery can suffer
dangerous chemical burns in as little as two hours. Seek medical help
immediately.
● Do not recharge or tamper with the remote control battery.
● Clean the included lter promptly when the degree symbol changes from
white to orange. Avoid sharp edges and coils when changing the lter to
prevent injury.
FOLLOW THE WARNINGS BELOW TO MINIMIZE THE
RISK OF PROPERTY DAMAGE, SERIOUS INJURY, OR
DEATH.
Important safety instructions
8
Refrigerant.
WARNING
● Do not use means to accelerate the defrosting process or to clean, other
than those recommended by the manufacturer.
● The appliance shall be stored in a room without continuously operating
ignition sources (for example: open ames, an operating gas appliance, or
an operating electric heater).
● Do not pierce or burn. Be aware that ammable refrigerants may not
contain an odor.
● Use caution when handling and storing to prevent damage to the unit.
● Do not drill or poke holes in the unit under any circumstances.
● Maintenance and repair should only be conducted by trained, licensed
technicians certied to work with ammable refrigerants. Any person who
is involved with working on or breaking into a refrigerant circuit should
hold a valid certicate from an industry-accredited assessment authority,
which authorizes their competence to handle refrigerants safety in
accordance with an industry recognized assessment specication.
RISK OF FIRE OR EXPLOSION. This unit contains a
newer refrigerant called R32 that has a lower Global
Warming Potential than older refrigerants like R410A.
It is a ammable refrigerant and has special safety
precautions and advisories that must be followed:
Important safety instructions
For R32 Only
● Servicing shall only be performed as recommended by the equipment
manufacturer. Maintenance and repair requiring the assistance of other
skilled personnel shall be carried out under the supervision of the person
competent in the use of ammable refrigerants.
● If not maintained and cleaned properly, the refrigeration, mechanical, and
electrical systems can all be damaged.
● The unit should be installed and stored in an area with proper ventilation.
The airow (front, back, and sides) should not be blocked.
● Do not store in a room with any open ame appliances (i.e. furnaces, gas
water heaters, etc.).
● Do not store in a room with electrical heaters.
● Store carefully and in a safe place to prevent damage to the refrigerant
tubing.
● Do not store if the unit is damaged. Fix the unit before storing.
● Dispose of the air conditioner in accordance with Federal and local
regulations. Flammable refrigerants require special disposal procedures.
Contact your local authorities for instructions on safe disposal of your air
conditioner.
9
FCC statement.
Federal Communications Commission (FCC)
Interference Statement
Host device labeling:
RF exposure statement
FCC caution:
This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in
a residential environment. This equipment generates, uses, and can radiate
radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by tuning the device off and
on, the user is encouraged to try to correct the interference by one or more of
the following measures:
● Reorient or relocate the receiving antenna.
● Increase the separation between the device and receiver.
● Connect the equipment into an outlet other than the one used for the
receiver.
● Consult the dealer or an experienced radio/TV technician for assistance.
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions: (1) This device may not cause harmful interference,
and (2) This device must accept any interference received, including interfer-
ence that may cause undesired operation.
This device includes the following module. Contains FCC ID: 2ANDL-WR2.
This equipment complies with FCC radiation exposure limits set forth for an
uncontrolled environment. This equipment should be installed and operated
with minimum 20 cm between the radiator and your body. This transmitter
must not be collocated or operating in conjunction with any other antenna or
transmitter unless authorized to do so by the FCC.
Any changes or modications not expressly approved by the party
responsible for compliance could void the user’s authority to operate the
equipment.
FPO
This is the location
of the module
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Get to know your AC.
AC unit overview
Exterior Metal Housing Front Air Vents
Front BezelRear Bezel Front Intake Grille
(The lter is behind this)
Rear Condenser
Vents
Display Control Panel
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Get to know your AC.
Labels & important information
1. Remove front intake grille by gently pulling the
bottom groove.
Behind front grille Top view
2. Behind this grille, you will nd your serial number,
model number, and other important product
information and cautions.
3. On top of the unit behind the top bar, you will nd
important disposal and safety information.
Nameplate & product Info
Model # & Serial # Top barMoving, hot parts,
CAUTION
Safety information
12
Get to know your AC.
Controls overview
Power button
Turn the AC on and off.
Mode button
Use this to change the mode to cool, eco, or fan.
Power indicator light
Shows the AC is powered on (you can shut this
light off by holding down Mode for 5 seconds).
Fan button
Use this to change the fan speed to high (3),
medium (2), low (1), or auto (A). Auto means the fan
only runs when the AC is cooling (versus running
continuously). Wi button
Hold this down for 5 seconds to begin pairing with
your app. The wi indicator light will ash until you
pair successfully.
Set temperature button
Use this to adjust the temperature up or down.
Clean lter button
Hold this down for 5 seconds after cleaning or
replacing your lter to reset the change lter
indicator light.
1 5
2 6
3
7
4
1
1
2
34567
5
7
6
Remote Unit controls
13
Get to know your AC.
Display & operating overview
Temperature display
This area will display the room temperature.
When you adjust the temperature up or down
using the temperature button, this area will then
show the set temperature so you can choose your
new desired temperature. Once you choose your
new desired temperature, the display will ash this
new set temperature twice before again displaying
the room temperature.
Cool mode
This mode helps keep your home cool, comfortable,
and dehumidied. In this mode, you can choose
any fan speed (low, medium, high, auto). The fan will
run continuously in this mode (unless on auto fan
speed). Use the temperature button to adjust to your
desired set temperature.
Eco (Energy Saver) mode
The unit will turn on by default in this mode to
ensure the unit runs efciently and to help you save
on your energy bill. In this mode, the compressor
turns off when your desired temperature is
reached. The fan will run periodically until the room
temperature is above your desired temperature.
At this point, the compressor will turn back on to
help cool the room back down to your desired
temperature. In this mode, you can choose any
fan speed (low, medium, high, or auto). Use the
temperature button to adjust to your desired set
temperature.
Fan display
This display area will show the different fan speed
options as you cycle through using the fan button.
Once you nd your desired fan speed, it will ash
twice before again displaying the room temperature.
The fan speeds are displayed as follows:
High: 3
Medium: 2
Low: 1
Auto: A
1
3
1
2
2
3
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Get to know your AC.
Display & operating overview
Fan mode
Use this mode to run the fan only. The compressor
will not turn on. You can choose high, medium, or
low fan speed. Auto fan does not work in this mode.
The display will show the room temperature, and you
cannot adjust the set temperature in this mode.
Wi indicator light
To connect your unit to the Windmill app, hold down
the wi button for 5 seconds. It will continue to ash
for 60 seconds. If it does not pair, it will stop ashing
after 60 seconds. If it does pair, the wi indicator
light will stay lit.
Note: this wi indicator light will ash for 60 seconds when initially
plugged in - it will stop after 60 seconds if you do not wish to pair
with the app.
Degree symbol & clean lter indicator
The degree symbol will change from white to orange
after 250 hours of operation. This means it is time
to clean or change your lter. Once you clean or
change your lter, hold down the lter button for 5
seconds until it beeps and the degree symbol turns
from orange back to white.
4 5
6
Other important operating notes:
● There is a 3 minute delayed start if the AC is turned on and off
quickly in cool or eco mode. This helps protect the compressor
from overheating or the circuit breaker from tripping. The fan
will still run during this delay.
● When you select fan mode, the compressor will continue to run
for approximately 2 minutes (in case you decide to cycle back
through to cool or eco mode).
● When the unit is turned off in cool or eco mode, it will always
return to eco mode when powered back on.
● If power is lost due to a power outage, the AC will restart in
whatever mode it was last in before shutting off.
● The temperature can be set between 60 degrees Fahrenheit and
80 degrees Fahrenheit. The AC will maintain your desired set
temperature within approximately 2 degrees Fahrenheit in a well
insulated room 375 square feet or smaller.
4
6
5
15
Get to know your AC.
Important things to highlight
Eco mode operation
Every time you power on your AC (including right out of
the box), it will default to eco (energy saver) mode. This is
the most efcient mode and helps save you money on
your energy bill. If the temperature in your room is lower
than the unit’s set temperature, the unit will not run
right away (since it’s already below your target temp!). For
example, if your room is 68 degrees and your unit is set to
70 degrees, in eco mode, nothing would happen. You can
always change the mode to cool or fan if you want air to
ow.
Fading display
Windmill was designed to hide in plain sight. The display
will fade away after 60 seconds, so you don’t have bright
LEDs ruining your vibe (or sleep). There is an indicator
light in the power button that lets you know the unit is
still running. Press any button to reactivate the display.
NOTE: If you want your AC to run completely in the dark, you can shut off
the indicator light by holding down the “mode” button on the unit for 5
seconds.
Power indicator light
(inside power button)
Hold mode button for 5
seconds to turn off power
indicator light
16
Get to know your AC.
Remote control
The remote ships with one new battery. Do not
recharge the battery. Use a new CR2032 3 Volt Lithium
Coin Cell Battery.
The remote control is intended to work up to 25 feet away
from the AC unit. It will not work reliably from further
distances or if there are objects in between the remote
and AC.
To change the battery:
1. Slide the back cover off
2. Remove and properly dispose of the old battery
3. Insert new battery (pay attention to the polarity to make
sure it is the correct side)
4. Slide back cover into place
WARNING NOTES & CAUTION
● Keep the remote control away from children. The remote control
contains button/coin cell batteries. A child that swallows the
battery can suffer dangerous chemical burns in as little as two
hours. Seek medical help immediately.
● The remote may be damaged and not work properly if the
sensor at the front is exposed to direct light.
● Remove the battery from the remote if you do not plan on using
the AC for a while (this will prevent potential leakage)
● Do not place or store the remote in areas with extreme heat or
humidity.
17
Cleaning & maintenance.
How to clean &
change your lter
Check the air lter once every couple of weeks.
Dirt, dust, and other particles can block the airow. This
isn’t great for the efciency of the machine or your air!
To clean the included antimicrobial lter:
1. Remove the front intake grille. Place your hands in
the bottom groove and pull out (it’s magnetic, so should
be easy!)
2. Remove the lter. Use the plastic grips near each hole
as you pull out. Be careful not to snap off the plastic
pegs where the lter rests.
3. Wash the lter. Use warm water below 100 degrees
fahrenheit. Lightly shake off excess water. Do not use
soap to clean the lter.
4. Return lter and front intake grille. Align the holes in
the lter with the plastic pegs. When it is secure, insert
the front intake grille’s magnets into their respective
holes on the front bezel.
For cleaner, fresher air, we also included (for free!) a removable
activated carbon lter, which helps remove odors, smoke, and
VOCs (volatile organic compounds) from the air. To learn more and
subscribe, visit windmillair.com.
WARNING
● Power off and unplug the AC before you change the lter.
18
Cleaning & maintenance.
How to clean &
store your AC
We want your unit staying fresh and clean.
Cleaning instructions and notes:
● You can clean the exterior parts of your AC with warm
water and mild liquid dishwashing detergent. Use a soft
wash cloth.
● Use a dryer part of the cloth to wipe down the display
and buttons. Be careful not to get water or detergent
near the display or buttons.
● Do not use harsh cleaning products.
Storage
● Remove the AC carefully from the window following the
Installation Guide’s instructions.
● Store it in the original packaging or use a plastic cover or
bag.
● Do not store the unit where it can be punctured or
damaged.
● Do not store in a room with any open ame appliances
(i.e. furnaces, gas water heaters, etc.).
● Do not store in a room with electrical heaters.
● Do not store if the unit is damaged. Fix the unit before
storing.
WARNING
● Turn off and unplug the AC before you clean it. Do not clean
the inside of the AC unit. Only authorized personnel can clean
the interior of the product.
19
Environmental impact.
Lower your environmental footprint and energy bill with
these simple tips
1. Clean your lter: A clean lter allows more air to ow
through the AC, making it more energy efcient.
2. Maximize air ow: For ACs, free owing air is like food.
For them to “eat” and operate as efciently as possible,
they need air to pass through without being blocked.
Make sure there is nothing blocking the air ow around
your Windmill AC, on the inside and outside of your
home.
3. Give your AC some shade: Your unit will be happier
and work more efciently if you place it in a window
that doesn’t get a lot of sun.
4. Insulate the window: Make sure there are no air gaps
in your windows or walls, so cool air can’t escape (and
warm air can’t get in).
5. Do the little things: Run appliances that generate a lot
of heat (washer, dryer, dishwasher, etc.) during cooler
parts of the day and keep blinds closed (in your other
windows) during the sunniest parts of the day.
20
Warranty.
Your AC comes with a one year limited warranty.
To review the warranty specics and register your new AC,
go to windmillair.com/support.
Note: You’ll need to have your model number and serial number handy
before registering your AC. Both numbers can be found by removing the
front intake grille. They will be on a white sticker attached to the inside of the
front bezel.
Model # & Serial #
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We’re here if you need us.
We mean it.
If you have any questions or need additional help,
Go to windmillair.com/support
Email us at support@windmillair.com
