Mitsubishi Heavy Industries WF-RAC User manual

WIRELESS LAN INTERFACE
WF-RAC
TECHNICAL MANUAL
Manual No.'21•SRK-T-324

'21 • SRK-T-324
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1
-
－1－
CONTENTS
1. APPLICABLE MODELS
1. APPLICABLE MODELS
.................................................... 1
2. EXTERIOR DIMENSIONS
................................................. 2
3. ELECTRICAL WIRING
...................................................... 2
4. WIRING CONNECTION
.................................................... 3
5. PRINTED-CIRCUIT BOARD COMPONENT LAYOUT
...... 3
6. FUNCTIONS LIST
.............................................................. 4
7. MAIN UNIT INSTALLATION MANUAL
............................. 7
8. MAIN UNIT USER’S MANUAL
........................................ 18
'21 • SRK-T-324
9. APPLICATION OPERATION MANUAL ...................... 34
10. FAQ (Troubleshooting)
.................................................. 86
11. TIMER FUNCTION OPERATION EXPLANATION
.......... 97
Part name Model Applicable models
Wireless LAN interface WF-RAC ZSX・ZS・ZR・ZMX・ZM series

'21 • SRK-T-324
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2
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3. ELECTRICAL WIRING
2. EXTERIOR DIMENSIONS
No. Name
1Reset button
2Communication LED
3Running LED
4Power button
5Set button
Holder
1
2
3
4
5
Wireless LAN
interface main unit
110
33
(1300)
16.5
83.5
62.0
Attached
cable
5
CN1 CNS
5
Symbol Name
CNS,CN1 Connector
Indoor unit
control box
Printed-circuit board Printed-circuit board
WF-RAC
－2－
2. EXTERIOR DIMENSIONS
3. ELECTRICAL WIRING

'21 • SRK-T-324
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3
-
3. ELECTRICAL WIRING
2. EXTERIOR DIMENSIONS
No. Name
1Reset button
2Communication LED
3Running LED
4Power button
5Set button
Holder
1
2
3
4
5
Wireless LAN
interface main unit
110
33
(1300)
16.5
83.5
62.0
Attached
cable
5
CN1 CNS
5
Symbol Name
CNS,CN1 Connector
Indoor unit
control box
Printed-circuit board Printed-circuit board
WF-RAC
－2－
4. WIRING CONNECTION
5. PRINTED-CIRCUIT BOARD COMPONENT LAYOUT
To CNS
Printed-circuit
board
Connector Connection cable
CNS
Connection cable
Reset button (SW3)
Power button (SW1)
Set button (SW2)
Indoor unit
connecting terminal (CN1)
Front Back
－3－
4. WIRING CONNECTION
5. PRINTED-CIRCUIT BOARD COMPONENT LAYOUT
To CNS
Printed-circuit
board
Connector Connection cable
CNS
Connection cable
Reset button (SW3)
Power button (SW1)
Set button (SW2)
Indoor unit
connecting terminal (CN1)
Front Back
－3－
4. WIRING CONNECTION
5. PRINTED-CIRCUIT BOARD COMPONENT LAYOUT

'21 • SRK-T-324
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4
-
6. FUNCTIONS LIST
Not connected
Option parts
Connecting
Option parts
Wired remote control
(SC-BIKN2)
Smart M-Air
(WF-RAC)
Wired remote control
(SC-BIKN2)
Smart M-Air
(WF-RAC)
ON/OFF ON ○ ○ ○ ○ ○ ○
OFF ○ ○ ○○○○
AUTO ○ ○ ○ ○ ○ ○
COOL○ ○ ○ ○ ○ ○
HEAT ○ ○ ○ ○ ○ ○
DRY ○ ○ ○ ○ ○ ○
FAN○ ○ ○ ○ ○ ○
SELF CLEAN ○ ○ ×(Displayed as FAN) ×(Displayed as FAN) ×(Displayed as FAN) ×(Displayed as FAN)
ALLERGEN CLEAR ○ ○ ×(Displayed as FAN) ×(Displayed as FAN) ×(Displayed as FAN) ×(Displayed as FAN)
NIGHT SETBACK ○ ○ ×(Displayed as HEAT) ×(Displayed as HEAT) ×(Displayed as HEAT) ×(Displayed as HEAT)
Home leave mode － － ○○ *1○○ *1
Temperature
adjustment 18℃～30℃ ○ ○ ○ *2○*2○*2○*2
FAN SPEED AUTO ○ ○ ○ ○ ○ ○
HIGH POWER ○ ○ ×(Displayed as Hi) ×(Displayed as ■■■) ×(Displayed as Hi) ×(Displayed as ■■■)
Hi ○ ○ ○(Displayed as PHi)
○(Displayed as ■■■
○(Displayed as PHi)
○(Displayed as ■■■
Me ○ ○ ○(Displayed as Hi) ○(Displayed as ■■■) ○(Displayed as Hi) ○(Displayed as ■■■)
Lo ○ ○ ○(Displayed as Me) ○(Displayed as ■■) ○(Displayed as Me) ○(Displayed as ■■)
ULo ○ ○ ○(Displayed as Lo) ○(Displayed as ■) ○(Displayed as Lo) ○(Displayed as ■)
ECO ○ ○ ×(Displayed as Lo) ×(Displayed as ■) ×(Displayed as Lo) ×(Displayed as ■)
Up/down (1 step) ○ ○ ○ ○ ○ ○
Up/down (2 step) ○ ○ ○ ○ ○ ○
Up/down (3 step) ○ ○ ×(Displayed as 2 step) ×(Displayed as 2 step) ×(Displayed as 2 step) ×(Displayed as 2 step)
Up/down (4 step) ○ ○ ○(Displayed as 3 step) ○(Displayed as 3 step) ○(Displayed as 3 step) ○(Displayed as 3 step)
Up/down (5 step) ○ ○ ○(Displayed as 4 step) ○(Displayed as 4 step) ○(Displayed as 4 step) ○(Displayed as 4 step)
Up/down (swing) ○ ○ ○ ○ ○ ○
Up/down (flap stopped) ○ ○ ×(Displayed as 2 step) ×(Displayed as 2 step) ×(Displayed as 2 step) ×(Displayed as 2 step)
Left/right (leftmost) ○ ○ ○ ○ ○ ○
Left/right (left) ○ ○ ○ ○ ○ ○
Left/right (middle) ○ ○ ○ ○ ○ ○
Left/right (right) ○ ○ ○ ○ ○ ○
Left/right (rightmost) ○ ○ ○ ○ ○ ○
Left/right (wide) ○ ○ ○ ○ ○ ○
Left/right (spot)○ ○ ○ ○ ○ ○
Left/right (swing) ○ ○ ○ ○ ○ ○
Left/right (louver stopped) ○ ○ ×(Displayed as middle) ×(Displayed as middle) ×(Displayed as middle) ×(Displayed as middle)
3D AUTO ○ ○ ○○○○
VariousTIMERs○×× × ○ ○
WEEKLY TIMER(Remote control) ○×××○ ○
WEEKLY TIMER(Option parts) － － ○ ○ ○ ○
installation location setting ○ ○ × × × ×
Silent ○ ○ ○ ×○×
Wireless LAN connection setting ○ ○ ×○×○
Wireless LAN communication
○ ○ ×○×○
Initialization of wireless LAN
○ ○ ×○×○
Fan control in heating thermo-OFF
○ ○ ○ ×○×
Display brightness adjustment ○ ○ × × × ×
Shut-offreminder alert － － －○－○
○：Operation/Setting Available
*1：Operates with the default settings of the indoor unit (operation switching is cooling or heating display)
×：Operation/Setting/Display N/A
*2：The setting is in 0.5 ℃increments, but the indoor unit is controlled only in 1 ℃increments.
－：No function 0.5 ℃is controlled by rounding up (e.g. remote control setting 24.5 ℃→indoor unit 25 ℃setting)
Function Setting
Operation by remote control
Operation by option parts
(Before)
Operation by option parts
(After)
OPERATION
MODE select
Air flow
direction
adjustment
MENU
function
SRK50ZS-W/A Operable Table

'21 • SRK-T-324
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5
-
Not connected
Option parts
Connecting
Option parts
Wired remote control
(SC-BIKN2)
Smart M-Air
(WF-RAC)
Wired remote control
(SC-BIKN2)
Smart M-Air
(WF-RAC)
ON/OFF ON ○ ○ ○○○○
OFF ○ ○ ○ ○ ○ ○
AUTO ○ ○ ○○○○
COOL○ ○ ○○○○
HEAT ○ ○ ○○○○
DRY ○ ○ ○○○○
FAN ○ ○ ○○○○
SELF CLEAN ○ ○ ×(Displayed as FAN) ×(Displayed as FAN) ×(Displayed as FAN) ×(Displayed as FAN)
ALLERGEN CLEAR ○ ○ ×(Displayed as FAN) ×(Displayed as FAN) ×(Displayed as FAN) ×(Displayed as FAN)
NIGHT SETBACK ○ ○ ×(Displayed as HEAT) ×(Displayed as HEAT) ×(Displayed as HEAT) ×(Displayed as HEAT)
Home leave mode － － ○ ○ *1○○ *1
Temperature
adjustment 18℃～30℃ ○ ○ ○ *2 ○ *2 ○ *2 ○ *2
FAN SPEED AUTO ○ ○ ○○○○
HIGH POWER ○ ○ ×(Displayed as Hi) ×(Displayed as ■■■) ×(Displayed as Hi) ×(Displayed as ■■■)
Hi ○ ○ ○(Displayed as PHi)
○(Displayed as ■■■
○(Displayed as PHi)
○(Displayed as ■■■
Me ○ ○ ○(Displayed as Hi) ○(Displayed as ■■■) ○(Displayed as Hi) ○(Displayed as ■■■)
Lo ○ ○ ○(Displayed as Me) ○(Displayed as ■■) ○(Displayed as Me) ○(Displayed as ■■)
Ulo ○ ○ ○(Displayed as Lo) ○(Displayed as ■) ○(Displayed as Lo) ○(Displayed as ■)
Up/down (1 step) ○ ○ ○○○○
Up/down (2 step) ○ ○ ○○○○
Up/down (3 step) ○ ○ ×(Displayed as 2 step) ×(Displayed as 2 step) ×(Displayed as 2 step) ×(Displayed as 2 step)
Up/down (4 step) ○ ○ ○(Displayed as 3 step) ○(Displayed as 3 step) ○(Displayed as 3 step) ○(Displayed as 3 step)
Up/down (5 step) ○ ○ ○(Displayed as 4 step) ○(Displayed as 4 step) ○(Displayed as 4 step) ○(Displayed as 4 step)
Up/down (swing) ○ ○ ○○○○
Up/down (flap stopped) ○ ○ ×(Displayed as 2 step) ×(Displayed as 2 step) ×(Displayed as 2 step) ×(Displayed as 2 step)
Left/right (leftmost) ○ ○ ○○○○
Left/right (left) ○ ○ ○○○○
Left/right (middle) ○ ○ ○○○○
Left/right (right) ○ ○ ○○○○
Left/right (rightmost) ○ ○ ○○○○
Left/right (wide) ○ ○ ○○○○
Left/right (spot) ○ ○ ○○○○
Left/right (swing) ○ ○ ○○○○
Left/right (louver stopped) ○ ○ ×(Displayed as middle) ×(Displayed as middle) ×(Displayed as middle) ×(Displayed as middle)
3D AUTO ○ ○ ○ ○ ○ ○
VariousTIMERs○×××○○
WEEKLY TIMER(Remote control) ○×××○ ○
WEEKLY TIMER(Option parts) － － ○ ○ ○ ○
installation location setting ○ ○ ××××
Silent ○ ○ ○×○×
Wireless LAN connection setting ○ ○ ×○×○
Wireless LAN communication ○ ○ ×○×○
Initialization of wireless LAN
○ ○ ×○×○
Fan control in heating thermo-OFF
○ ○ ○×○×
Display brightness adjustment ○ ○ ××××
HIGH POWER/ECO ○ ○ ○×○×
AUTO OFF ○○ (1 hour only) ○ (1 hour only) ×○ (1 hour only) ×
Shut-offreminder alert － － － ○ － ○
○：Operation/Setting Available
*1：Operates with the default settings of the indoor unit (operation switching is cooling or heating display)
×：Operation/Setting/Display N/A
*2：The setting is in 0.5 ℃ increments, but the indoor unit is controlled only in 1 ℃ increments.
－：No function 0.5 ℃ is controlled by rounding up (e.g. remote control setting 24.5 ℃ → indoor unit 25 ℃ setting)
OPERATION
MODE select
Air flow
direction
adjustment
MENU
function
Function Setting
Operation by remote control
Operation by option parts
(Before)
Operation by option parts
(After)
SRK60ZSX-W/A Operable Table

'21 • SRK-T-324
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6
-
Not connected
Option parts
Connecting
Option parts
Wired remote control
(SC-BIKN2)
Smart M-Air
(WF-RAC)
Wired remote control
(SC-BIKN2)
Smart M-Air
(WF-RAC)
ON/OFF ON ○ ○ ○○○○
OFF ○ ○ ○ ○ ○ ○
AUTO ○ ○ ○○○○
COOL○ ○ ○○○○
HEAT ○ ○ ○○○○
DRY ○ ○ ○○○○
FAN ○ ○ ○○○○
SELF CLEAN ○ ○ ×(Displayed as FAN) ×(Displayed as FAN) ×(Displayed as FAN) ×(Displayed as FAN)
ALLERGEN CLEAR ○ ○ ×(Displayed as FAN) ×(Displayed as FAN) ×(Displayed as FAN) ×(Displayed as FAN)
NIGHT SETBACK ○ ○ ×(Displayed as HEAT) ×(Displayed as HEAT) ×(Displayed as HEAT) ×(Displayed as HEAT)
Home leave mode － － ○ ○ *1○○ *1
Temperature
adjustment 18℃～30℃ ○ ○ ○ *2 ○ *2 ○ *2 ○ *2
FAN SPEED AUTO ○ ○ ○○○○
HIGH POWER ○ ○ ×(Displayed as Hi) ×(Displayed as ■■■) ×(Displayed as Hi) ×(Displayed as ■■■)
Hi ○ ○ ○(Displayed as PHi) ○(Displayed as ■■■ ○(Displayed as PHi) ○(Displayed as ■■■
Me ○ ○ ○(Displayed as Hi) ○(Displayed as ■■■) ○(Displayed as Hi) ○(Displayed as ■■■)
Lo ○ ○ ○(Displayed as Me) ○(Displayed as ■■) ○(Displayed as Me) ○(Displayed as ■■)
ULo ○ ○ ○(Displayed as Lo) ○(Displayed as ■) ○(Displayed as Lo) ○(Displayed as ■)
ECO ○ ○ ×(Displayed as Lo) ×(Displayed as ■) ×(Displayed as Lo) ×(Displayed as ■)
Up/down (1 step) ○ ○ ○○○○
Up/down (2 step) ○ ○ ○○○○
Up/down (3 step) ○ ○ ×(Displayed as 2 step) ×(Displayed as 2 step) ×(Displayed as 2 step) ×(Displayed as 2 step)
Up/down (4 step) ○ ○ ○(Displayed as 3 step) ○(Displayed as 3 step) ○(Displayed as 3 step) ○(Displayed as 3 step)
Up/down (5 step) ○ ○ ○(Displayed as 4 step) ○(Displayed as 4 step) ○(Displayed as 4 step) ○(Displayed as 4 step)
Up/down (swing) ○ ○ ○○○○
Up/down (flap stopped) ○ ○ ×(Displayed as 2 step) ×(Displayed as 2 step) ×(Displayed as 2 step) ×(Displayed as 2 step)
Left/right (leftmost) ○ ○ ○○○○
Left/right (left) ○ ○ ○○○○
Left/right (middle) ○ ○ ○○○○
Left/right (right) ○ ○ ○○○○
Left/right (rightmost) ○ ○ ○○○○
Left/right (wide) ○ ○ ○○○○
Left/right (spot) ○ ○ ○○○○
Left/right (swing) ○ ○ ○○○○
Left/right (louver stopped) ○ ○ ×(Displayed as middle) ×(Displayed as middle) ×(Displayed as middle) ×(Displayed as middle)
3D AUTO ○ ○ ○ ○ ○ ○
VariousTIMERs○×××○○
WEEKLY TIMER(Remote control) ○×××○ ○
WEEKLY TIMER(Option parts) － － ○ ○ ○ ○
installation location setting ○ ○ ××××
Silent ○ ○ ○×○×
Wireless LAN connection setting － － ×○×○
Wireless LAN communication － － ×○×○
Initialization of wireless LAN
－ － ×○×○
Fan control in heating thermo-OFF
－ － 〇×〇×
Shut-offreminder alert － － － ○ － ○
○：Operation/Setting Available
*1：Operates with the default settings of the indoor unit (operation switching is cooling or heating display)
×：Operation/Setting/Display N/A
*2：The setting is in 0.5 ℃ increments, but the indoor unit is controlled only in 1 ℃ increments.
－：No function 0.5 ℃ is controlled by rounding up (e.g. remote control setting 24.5 ℃ → indoor unit 25 ℃ setting)
Function Setting
Operation by remote control
Operation by option parts
(Before)
Operation by option parts
(After)
OPERATION
MODE select
Air flow
direction
adjustment
MENU
function
SRK100ZR-W Operable Table

'21 • SRK-T-324
-
7
-
Not connected
Option parts
Connecting
Option parts
Wired remote control
(SC-BIKN2)
Smart M-Air
(WF-RAC)
Wired remote control
(SC-BIKN2)
Smart M-Air
(WF-RAC)
ON/OFF ON ○ ○ ○○○○
OFF ○ ○ ○ ○ ○ ○
AUTO ○ ○ ○○○○
COOL○ ○ ○○○○
HEAT ○ ○ ○○○○
DRY ○ ○ ○○○○
FAN ○ ○ ○○○○
SELF CLEAN ○ ○ ×(Displayed as FAN) ×(Displayed as FAN) ×(Displayed as FAN) ×(Displayed as FAN)
ALLERGEN CLEAR ○ ○ ×(Displayed as FAN) ×(Displayed as FAN) ×(Displayed as FAN) ×(Displayed as FAN)
NIGHT SETBACK ○ ○ ×(Displayed as HEAT) ×(Displayed as HEAT) ×(Displayed as HEAT) ×(Displayed as HEAT)
Home leave mode － － ○ ○ *1○○ *1
Temperature
adjustment 18℃～30℃ ○ ○ ○ *2 ○ *2 ○ *2 ○ *2
FAN SPEED AUTO ○ ○ ○○○○
HIGH POWER ○ ○ ×(Displayed as Hi) ×(Displayed as ■■■) ×(Displayed as Hi) ×(Displayed as ■■■)
Hi ○ ○ ○(Displayed as PHi) ○(Displayed as ■■■ ○(Displayed as PHi) ○(Displayed as ■■■
Me ○ ○ ○(Displayed as Hi) ○(Displayed as ■■■) ○(Displayed as Hi) ○(Displayed as ■■■)
Lo ○ ○ ○(Displayed as Me) ○(Displayed as ■■) ○(Displayed as Me) ○(Displayed as ■■)
ULo ○ ○ ○(Displayed as Lo) ○(Displayed as ■) ○(Displayed as Lo) ○(Displayed as ■)
ECO ○ ○ ×(Displayed as Lo) ×(Displayed as ■) ×(Displayed as Lo) ×(Displayed as ■)
Up/down (1 step) ○ ○ ○○○○
Up/down (2 step) ○ ○ ○○○○
Up/down (3 step) ○ ○ ×(Displayed as 2 step) ×(Displayed as 2 step) ×(Displayed as 2 step) ×(Displayed as 2 step)
Up/down (4 step) ○ ○ ○(Displayed as 3 step) ○(Displayed as 3 step) ○(Displayed as 3 step) ○(Displayed as 3 step)
Up/down (5 step) ○ ○ ○(Displayed as 4 step) ○(Displayed as 4 step) ○(Displayed as 4 step) ○(Displayed as 4 step)
Up/down (swing) ○ ○ ○○○○
Up/down (flap stopped) ○ ○ ×(Displayed as 2 step) ×(Displayed as 2 step) ×(Displayed as 2 step) ×(Displayed as 2 step)
Left/right (leftmost) ○ ○ ○○○○
Left/right (left) ○ ○ ○○○○
Left/right (middle) ○ ○ ○○○○
Left/right (right) ○ ○ ○○○○
Left/right (rightmost) ○ ○ ○○○○
Left/right (wide) ○ ○ ○○○○
Left/right (spot) ○ ○ ○○○○
Left/right (swing) ○ ○ ○○○○
Left/right (louver stopped) ○ ○ ×(Displayed as middle) ×(Displayed as middle) ×(Displayed as middle) ×(Displayed as middle)
3D AUTO ○ ○ ○ ○ ○ ○
VariousTIMERs○×××○○
WEEKLY TIMER(Remote control) ○×××○ ○
WEEKLY TIMER(Option parts) － － ○ ○ ○ ○
installation location setting ○ ○ ××××
Silent ○ ○ ○×○×
Wireless LAN connection setting － － ×○×○
Wireless LAN communication － － ×○×○
Initialization of wireless LAN
－ － ×○×○
Fan control in heating thermo-OFF
－ － 〇×〇×
Shut-offreminder alert － － － ○ － ○
○：Operation/Setting Available
*1：Operates with the default settings of the indoor unit (operation switching is cooling or heating display)
×：Operation/Setting/Display N/A
*2：The setting is in 0.5 ℃ increments, but the indoor unit is controlled only in 1 ℃ increments.
－：No function 0.5 ℃ is controlled by rounding up (e.g. remote control setting 24.5 ℃ → indoor unit 25 ℃ setting)
Function Setting
Operation by remote control
Operation by option parts
(Before)
Operation by option parts
(After)
OPERATION
MODE select
Air flow
direction
adjustment
MENU
function
[EN] RKZ012A105
EN-1
WIRELESS LAN INTERFACE MAIN
UNIT INSTALLATION MANUAL
• This INSTALLATION MANUAL can also be viewed on
the home page of MITSUBISHI HEAVY INDUSTRIES
THERMAL SYSTEMS, LTD.
• Please download USER’S MANUAL (including the
guarantee form) via the QR code or from the home
page described later.
Safety precautionsPlease read these safety precautions
carefully before installing and using this product.
●Be sure tofollow these precautions because they
describe important safety-related information.
WARNING
Failure tofollow warnings may cause
serious consequences such as death
or severe injury.
CAUTION
Failure tofollow cautions may cause
injury and/or property damage.
Depending on the situation, failure to
follow cautions may lead to serious
consequences.
●The "graphic symbols" in this document have the
following meanings.
Prohibited.
Be sure tofollow instructions.
●After the installation work is completed, check the
installation according tothe installation work check
items. Request yourcustomer to keep this installation
manual at the customer’s site.
7. MAIN UNIT INSTALLATION MANUAL
RKZ012A105

'21 • SRK-T-324
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8
-
EN-2
WARNING
●Do not bundle, roll, or step on connection
cables to prevent cables from becoming
deformed.
(Deformation may cause heat generation, fire,
or electric shocks due to loose connection,
insulation failure, current exceeding the
allowable limit, etc.)
●Do not install this product near automatic
control equipment such as an automatic door
or fire-alarm device.
(Such improper installation may cause an
accident due to malfunction of equipment.)
●Do not install this product at a location in
a hospital, etc. where the use of wireless
devices is prohibited.
(Such improper installation may cause
malfunction of medical equipment due to a
wireless device.)
●Do not use this product near a person with a
cardiac pacemaker or implanted defibrillator.
(Such improper use may cause malfunction of
a medical device.)
●Do not disassemble, modify, or repair this
product.
(Such an activity may cause an electric shock,
fire, or any injury.)
●For installation work, request the sales outlet
for the product or an authorized dealer to
install the product.
(Improper installation may cause a water
leakage, electric shock, or fire.)

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WARNING
●In the installation work, install the product
securely according tothis installation manual,
and be sure to use accessories and specified
parts for installation.
(Improper installation may cause a water
leakage, electric shock, or fire.)
●The electrical engineering work must be
performed by a qualified electrical worker
according tothe technical standards
concerning electrical equipment, interior
wiring regulation, and installation manual.
(Improper work may cause an electric shock
or fire.)
●For wiring, use the specified cable, and
connect the cable securely. Then, fix the
terminal connection part securely to prevent
external force from being transmitted tothe
connection part through the cable.
(Improper connection may cause any failure,
heat generation, or fire.)
●Before installation, unplug the main unit of the
air-conditioner.
(Installation work without unplugging the
equipment may cause an electrical shock.)
●When you unplug the connection cable, hold
the connector to unplug the cable.
(Improper work may cause an electric shock
or fire.)

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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.
●This appliance can be used by children aged from
8 years and above and persons with reduced
physical, sensory or mental capabilities or lack of
experience and knowledge if they have been
given supervision or instruction concerning use of
the appliance in a safe way and understand the
hazards involved.
●Children shall not play with the appliance.
●Cleaning and user maintenance shall not be made
by children without supervision.
●Children should be supervised to ensure that they
do not play with the appliance.
●If cable is damaged, it must be replaced by the
manufacturer, its service agent or a similarly
qualified person in orderto avoid a hazard.

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CAUTION
●Do not use the product near another wireless
device, microwave, cordless phone, fax
machine, etc.
(Improper use may cause malfunction.)
●To prevent any failure due to electrical
discharge, touch your hand with metal around
you to remove static electricity from your body
before you touch this product.
(Improper operation may cause any failure.)
●Be sure to keep dry because the product is
not waterproof.
(Improper connection may cause any failure,
heat generation, or fire.)

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1. Selecting the installation location and installing the
main body
＜Selecting the installation location＞
Install this product in a location that satisfies the following conditions with
the agreement of your customer.
●A location where this product is not exposed to direct sunlight
●A location where this product is not influenced by a heating device
such as a stove
●A location with no moisture, and where this product is not exposed to
water
●A location where this product is not exposed directly to oil droplets or
steam
●A location without projections or depressions on the installation
surface
●A location at least 1m away from a TV set, stereo, or radio (the image
may be disturbed, and noise may be generated.)
●A location where this product is not influenced by a high-frequency or
electrical device

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＜Cautions for installation＞
●Do not mount the holder and main unit inside the indoor unit.
●Fix the holder on a wall, pillar, etc. securely with attached screws. (Do
not mount it on a clay wall, etc.)
●Install the connection cable securely by sliding the main unit from
above to prevent the cable from being trapped in the holder.
●Install the main unit within the range where the connection cable can
reach the indoor unit.
(The length of the connection cable is about 1.3m.)
●Never extend the connection cable because this product may fail to
operate normally if the cable is extended.
●Remove the body from the holder and install it in a position where the body
label can be seen. (SSID and KEY (Password) may need to be checked.)
＜When installing the holder and main unit inside an
indoor unit in which they can be included＞
●Do not install them inside an indoor unit, except when a unit can
include them.
Accessories supplied with this product
Check the accessories supplied with this
product.
Symbol
Part name
Quantity
A
Holder
1
B
Holder mounting screw
2
C
Main unit
1
D Installation manual (this
document)
1
Holes for mounting the unit on a wall

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EN-8
2. Connecting this product with the indoor unit
Connect the indoor unit connection cable to the indoor control printed-
circuit board.
・For the connection of the indoor unit, refer to the “description for
connecting the interface kit” in the installation manual of the indoor
unit.
・Connect the connector of the indoor unit connection cable to the
terminal (CNS) on the indoor control board by installing the cable
along the wiring route from below.
・Securely connect the connector of the indoor connection cable to
the CNS terminal on the indoor control board.
●About the handling of the connection cable
If the connection cable is too long, the redundant cable section
should be stored loosely in a space on the back of the indoor unit.
4. WIRING CONNECTION
5. PRINTED-CIRCUIT BOARD COMPONENT LAYOUT
To CNS
Printed-circuit
board
Connector Connection cable
CNS
Connection cable
Reset button (SW3)
Power button (SW1)
Set button (SW2)
Indoor unit
connecting terminal (CN1)
Front Back
－3－

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After the installation work is completed, be sure
to check the following.
Installation work check items
□Is the holder fixed securely?
□Is the cable trapped? Is the connection cable under a load?
□Is the connector connected properly and securely?
□Did you forget to tighten a screw on the main body of the indoor unit?
□Turn ON the power to the indoor unit. After that, do the
Communication LED and Running LED become ON for about
10 seconds and then OFF? (If the Communication LED and
Running LED blink alternately at intervals of 10 seconds, check the
connection.)
□Did you explain the cautions in the user’s manual to the customer?
□Did you pass the installation manual to your customer and request
the customer to thoroughly read and store the manual?
* If you have any question on the installation, please contact us at the URL
on the last page for inquiry.
Communication
LED
Running LED
Communication
LED
(Orange)
Running LED
(Green)
o
n
Approximately
10 seconds
Abnormal
：
Normal
：
Illuminates, and
then goesOFF
Communication
LED
(Orange)
Running LED
(Green)
For 10 seconds
Short blinking is
repeated alternately
4. WIRING CONNECTION
5. PRINTED-CIRCUIT BOARD COMPONENT LAYOUT
To CNS
Printed-circuit
board
Connector Connection cable
CNS
Connection cable
Reset button (SW3)
Power button (SW1)
Set button (SW2)
Indoor unit
connecting terminal (CN1)
Front Back
－3－

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Notes for users
●Before using the product, the user needs to install the dedicated
application.
The user needs to install the smartphone application and then set up
a connection with the interface. Set up a connection with the interface
according to the user's manual downloaded via the following QR
code or from the URL.
●The application is free. Communications charges are applied to
downloading and operation.
●The application name “Smart M-Air” and download service names
“Google Play” and “App Store” may be changed in the future.
How to install the “Smart M-Air” smartphone application
For Android
1. Open [Google Play].
2. Search for [Smart M-Air].
3. Install the application according
to the instructions on the screen.
For iOS (iPhone)
1. Open [App Store].
2. Search for [Smart M-Air].
3. Install the application according
to the instructions on the screen.
User's Manual
Refer to the home page of MITSUBISHI HEAVY
INDUSTRIES THERMAL SYSTEMS, LTD.
http://www.mhi-mth.co.jp/en/products/detail/air-conditioner_
users_manual.html
●CE Marking
Refer to the home page of MITSUBISHI HEAVY INDUSTRIES THERMAL
SYSTEMS, LTD.
https://www.mhi-mth.co.jp/en/technology/ce_marking.php

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MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
2-3, Marunouchi 3-chome, Chiyoda-ku, Tokyo, 100-8332, Japan
http://www.mhi-mth.co.jp/en/
MITSUBISHI HEAVY INDUSTRIES AIR-CONDITIONING EUROPE, LTD.
5 The Square, Stockley Park, Uxbridge, Middlesex, UB11 1ET, United Kingdom
Tel : [phone]
Fax: [phone]
http://www.mhiae.com/
MHIAE SERVICES B.V.
(Wholly-owned subsidiary of MITSUBISHI HEAVY INDUSTRIES AIR-CONDITIONING EUROPE,
LTD.)
Herikerbergweg 238, Luna ArenA, 1101 CM Amsterdam, Netherlands
P.O.Box 23393 1100 DW Amsterdam, Netherlands
Tel : [phone]
http://www.mhiaeservices.com/
MITSUBISHI HEAVY INDUSTRIES AIR-CONDITIONERS AUSTRALIA, PTY. LTD.
Block E, 391 Park Road, Regents Park, NSW, 2143 PO BOX 3167, Regents Park, NSW, 2143
Tel : [phone]
Fax: [phone]
https://www.mhiaa.com.au

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‐1‐
WIRELESS LAN INTERFACE
MAIN UNIT USER'S MANUAL
[EN] RKZ012A106
Safety precautions
Please read these safety precautions carefully before using this
product and use the product properly.
●Be sure to follow these precautions as they describe important
safety-related information.
WARNING Failure to follow warnings may cause serious
consequences, such as death or severe injury.
CAUTION
Failure to follow cautions may cause injury and/or
property damage. Depending on the situation,
failure to follow cautions may lead to serious
consequences.
●The “graphic symbols” in this document have the following meanings.
Prohibited.
Be sure to follow instructions.
8. MAIN UNIT USER'S MANUAL
RKZ012A106 A