Mitsubishi Electric PAC-USWHS002-WF-2 Service manual

Specications are subject to change without notice. 1 © 2021 Mitsubishi Electric US, Inc.
MANUFACTURED FOR:
MITSUBISHI ELECTRIC US, INC.
PAC-USWHS002-WF-2
1. About Wireless Interface 2
Wireless Interface 2 allows the kumo cloud® app to communicate with and control
the air conditioner remotely. To enable this communication and control, Wireless
Interface 2 needs to be congured with a wireless router connected to the internet.
ATTENTION
• The Wireless Interface 2 must connect to a 2.4 GHz Wi-Fi network.
• The Wireless Interface 2 will not work on a 5 GHz Wi-Fi network.
•The Wireless Interface can only connect to Wi-Fi channels 1-11.
• For the best performance connect the Wireless Interface to a 2.4 GHz only
SSID, but there are some multi-band Wi-Fi networks that can correctly manage
a 2.4 GHz only device.
•Please verify if your multi-band Wi-Fi router can manage 2.4 GHz only
devices.
• Some room air conditioners are not compatible with the Wireless Interface 2.
Make sure that the room air conditioner is compatible with the Wireless
Interface 2 before attempting to install it.
INSTALLATION/INSTRUCTION MANUAL
Before using the device, carefully read this installation/instruction manual to
ensure proper operation.
Keep this manual for future reference and give it to the technician when the device
is reinstalled or repaired.
FOR INSTALLER
Wireless Interface 2
Contents
1. About Wireless Interface 2................................................................................ 1
2. Safety Instructions ............................................................................................ 2
3. What’s in the Box .............................................................................................. 5
4. Parts ................................................................................................................. 5
5. Connecting the Wireless Interface 2 to the Indoor Unit .................................... 5
6. Specications.................................................................................................... 7

Specications are subject to change without notice. 2 © 2021 Mitsubishi Electric US, Inc.
Do not use the red 5-pin connector
to create an unsupported
equipment combination.
Unsupported equipment combinations
may result in re, electric shock
and/or damage/water leaks. Refer to
the Wireless Interface 2 compatibility
guide for more details.
• Users should not install the
Interface on their own.
Improper installation may result in re,
electric shock or damage/water leaks.
Consult the dealer from whom you
purchased the unit or a professional
installer.
• The Interface should be securely
installed in accordance with this
installation manual.
Improper installation may result in re,
electric shock or damage.
• The unit should be mounted in
a location that can support its
weight.
If the unit is installed in a location
that cannot support its weight, the
Wireless Interface 2 could fall and
cause damage.
Install securely in a place where
the Wireless Interface 2 does not
interfere with equipment operation
or serviceability.
Improper installation may result in re,
electric shock or damage/water leaks.
• Do not install Wireless Interface 2
inside a metal enclosure.
Improper installation may result in
diminished signal strength.
• Connect and fasten the electric
wires securely so external force
on the wires will not apply on the
terminals.
Improper connection and mounting
may result in breakdown, heat
generation, smoke generation or re.
• Mitsubishi components or other
designated components must be
used for installation.
Improper component may result in
re, electric shock or damage/water
leaks.
• Electrical work must be performed
by a licensed professional using
the instructions detailed in the
installation manual.
Inadequate circuit capacity or
improper installation may result in
electric shock or re.
Warning
2. Safety Instructions
• Read all Safety Instructions before using the Wireless Interface 2.
• This installation manual contains important safety information.
Be sure to comply with the instructions.
Warning Improper handling may have serious consequences, including
serious injury or death.
Caution Improper handling may have consequences, including injury
or damage to house.
• After installing the Wireless Interface 2, provide this installation manual to the
user. Instruct users to store it with their room air conditioner instruction manual in
a safe location.

Specications are subject to change without notice. 3 © 2021 Mitsubishi Electric US, Inc.
Warning
• This appliance is not intended
for use by persons (including
children) with reduced physical,
sensory or mental capabilities,
or lack of experience and
knowledge, unless they have been
given supervision or instruction
concerning use of the appliance
by a person responsible for their
safety.
• Children should be supervised to
ensure that they do not play with
the appliances.
• 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
interference that may cause
undesired operation.
• 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 installation. 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 turning the
equipment o󰀨 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
equipment and receiver.
• Connect the equipment into an outlet
on a circuit, di󰀨erent from that to
which the receiver is connected.
• Consult the dealer or an experienced
radio/TV technician for help.
• This equipment complies with
radio frequency exposure limits
set forth by the FCC for an
uncontrolled environment. This
equipment should be installed and
operated with a minimum distance
of 7.87 in. (20 cm) between the
device and the user or bystanders.
• This device must not be co-located
or operating in conjunction with
any other antenna or transmitter.
• Changes or modications not
expressly approved by the party
responsible for compliance
could void the user’s authority to
operate the equipment.
• Do not connect the Wireless
Interface 2 to earth inside the air
conditioner.

Specications are subject to change without notice. 4 © 2021 Mitsubishi Electric US, Inc.
Caution
• To prevent damage from static
electricity, touch a nearby metal
body to discharge static electricity
from yourself before touching the
Wireless Interface 2.
Static electricity from the human body
may damage the Wireless Interface 2
unit.
• Do not install the Wireless Interface
2 in a place with much steam, such
as bathroom.
Avoid places where water is splashed
or where condensation forms on
walls. Installing in such places can
cause electric shock or breakdown.
• Do not install the Wireless
Interface 2 in places with direct
sunlight or where the ambient
temperature is 40º C, 104º F or
more, or is 0º C, 32º F or less.
Direct sunlight and high or low
temperature environments may cause
the Wireless Interface 2 to deform or
breakdown.
• Do not use in special
environments.
Use in places with much oil (including
machine oil), steam or sulfuric gas
may lead to severe decrease in
functionality and damage to parts.
• Turn o󰀨 power supply of connected
equipment when performing
construction or wiring work.
Failure to turn o󰀨 the power supply to
the connected equipment may lead
to malfunction or breakdown of the
Wireless Interface 2 or connected
equipment.
• Dismantling the indoor unit.
Please refer to the indoor unit’s
“service manual” for detailed
instructions for accessing the control
interface connector CN105 on the
indoor unit control PCB.
Notes
• The end user should read and
accept the terms and conditions of
kumo cloud® before commencing
installation of PAC-USWHS002-WF-2.
Use of the PAC-USWHS002-WF-2
implies acceptance of our terms and
conditions located at kumocloud.com/
terms.
• To complete connection of the
PAC-USWHS002-WF-2 to
kumo cloud®, physical access to the
access point may be required.
• Visit kumocloud.com for additional
information about controlling the
PAC-USWHS002-WF-2 from your
web browser or smart device.
• The PAC-USWHS002-WF-2 should
not be installed and connected to
any Mitsubishi Electric system that
provides cooling or heating to critical
applications.
• Details of the air conditioner
and PAC-USWHS002-WF-2 can
be recorded on page 6 ‘Setting
Information’.
• The antenna used for this transmitter
must be installed to provide a
separation distance of at least 20 cm
from all persons and must not be
co-located or operating in conjunction
with any other antenna or transmitter.

Specications are subject to change without notice. 5 © 2021 Mitsubishi Electric US, Inc.
Mitsubishi Electric’s Wireless Interface 2 is designed for communication to
Mitsubishi Electric’s kumo cloud®. Third-party Wireless Interface 2 devices cannot
connect to Mitsubishi Electric’s kumo cloud®. Mitsubishi Electric is not responsible
for any
(i) underperformance of a system or any product,
(ii) system or product fault, or
(iii) loss or damage to any system or product, which is caused by or arises
from connection to and/or use of any third-party Wireless Interface 2 or any
third-party wireless or Wi-Fi service with Mitsubishi Electric equipment.
3. What’s in the Box
• Wireless Interface 2 with two removable plugs for optional connections
• Connecting cable
• Velcro strips (2)
• Product insert
4. Parts
Wireless Interface 2 PAC-USWHS002-WF-2
5. Connecting the Wireless Interface 2 to the Indoor Unit
1. Power down the entire system.
2. Plug one end of the connecting cable into the white connector on the Wireless
Interface 2.
3. Disassemble the necessary indoor unit components, locate the CN105
connector on the indoor unit control board, and plug in the other end of the
connecting cable.
4. Select an empty spot in or around the indoor unit to mount the Wireless
Interface 2, then attach one Velcro strip to the device, and one to the desired
mounting location. Align the Velcro strips and press down rmly to create a
secure attachment.
5. Start up: Refer to the kumo cloud® Technician Manual for the installer. To view
the manual:
(i) Go to mylinkdrive.com
(ii) Select the required product market.
(iii) Click Controls and go to the kumo
cloud section.
(iv) Under kumo cloud Devices, click
PAC-USWHS002-WF-2 and then
click Technician Manual.

Specications are subject to change without notice. 6 © 2021 Mitsubishi Electric US, Inc.
IMPORTANT NOTE
The red connector on the Wireless Interface 2 provides a way for technicians
to connect it to an MHK1 or MHK2 remote controller. This connector is not
compatible with any other components, controllers, or accessories o󰀨ered by
Mitsubishi Electric. Make sure not to use this connector to connect to the indoor
unit, as it will result in a failure of communication. Not all indoor unit models are
compatible with the Wireless Interface 2 and the MHK1, so it is recommended to
conrm compatibility by visiting mylinkdrive.com and reviewing the compatibility
charts.

Specications are subject to change without notice. 7 © 2021 Mitsubishi Electric US, Inc.
6. Specications
Input Voltage DC12.7V (from indoor unit)
Power consumption MAX 2W
Size W × H × D Inch (mm) .69 x 1.82 x 2.92
(17.526 x 46.228 x 74.168)
RF channel 1ch ~ 11ch
Usage environment Temperature 32 ~ 104º F (0 ~ 40º C)
FCC 2AIGCWFB003
Wi-Fi Band 2.4 GHz only
Setting information
PAC-USWHS002-WF-2 address (MAC)
PAC-USWHS002-WF-2
serial number(ID)
Indoor unit model name
Indoor unit serial number
Outdoor unit model name
Outdoor unit serial number
System commissioning date
PAC-USWHS002-WF-2 installation date
Installer contact details
Name
Telephone number
Specications

Specications are subject to change without notice. 8 © 2021 Mitsubishi Electric US, Inc.
www.mitsubishielectric-usa.com
Toll Free: 800-433-4822
MITSUBISHI ELECTRIC US, INC.
MEUS DOC# CE-1519-L001, Ver. 3, January 2021
This device is designed and intended for use in the residential, commercial and
light-industrial environment.
kumo cloud is a registered trademark of Mitsubishi Electric US, Inc.
Please be sure to put the contact address/telephone number on this manual
before handing it to the customer.