Mitsubishi Heavy Industries RC-EXZ3A User manual

REMOTE CONTROL
INSTALLATION MANUAL
RC-EXZ3A
PJZ012D130
201907

−3−
Contents
1. Safety precautions …………………………………………………… 4
2 . Accessories & Prepare on site………………………………………… 5
3. Installation place ……………………………………………………… 6
4. Installation procedure ………………………………………………… 6
5. Main/Sub setting when more than one remote controls are used ……… 8
6. Functions and menu items of the remote control ……………………… 9
7. Main item …………………………………………………………… 12
8. Power on and initial setting ………………………………………… 14
9. Installation settings and test run …………………………………… 16
10. R/C function settings ……………………………………………… 20
11. IU settings ………………………………………………………… 23
12. Service & Maintenance …………………………………………… 31
13. Select the language ……………………………………………… 35

−4−
WARNING
● Consult your dealer or a professional contractor to install the unit.
Improper installation made on your own may cause electric shocks, re or dropping of the unit.
● Installation work should be performed properly according to this installation manual.
Improper installation work may result in electric shocks, re or break-down.
● Be sure to use accessories and specied parts for installation work.
Use of unspecied parts may result in drop, re or electric shocks.
● Install the unit properly to a place with sufcient strength to hold the weight.
If the place is not strong enough, the unit may drop and cause injury.
● Be sure to have the electrical wiring work done by qualied electrical installer, and use
exclusive circuit.
Power source with insufcient and improper work can cause electric shock and re.
● Shut OFF the main power supply before starting electrical work.
Otherwise, it could result in electric shocks, break-down or malfunction.
● Do not modify the unit.
It could cause electric shocks, re, or break-down.
● Be sure to turn OFF the power circuit breaker before repairing/inspecting the unit.
Repairing/inspecting the unit with the power circuit breaker turned ON could cause electric shocks or injury.
● Do not install the unit in appropriate environment or where inammable gas could generate,
ow in, accumulate or leak.
If the unit is used at places where air contains dense oil mist, steam, organic solvent vapor, corrosive gas (ammonium,
sulfuric compound, acid, etc) or where acidic or alkaline solution, special spray, etc. are used, it could cause electric shocks,
break-down, smoke or re as a result of signicant deterioration of its performance or corrosion.
● Do not install the unit where water vapor is generated excessively or condensation occurs.
It could cause electric shocks, re, or break-down.
● Do not use the unit in a place where it gets wet, such as laundry room.
It could cause electric shocks, re, or break-down.
● Do not operate the unit with wet hands.
It could cause electric shocks.
● Do not wash the unit with water.
It could cause electric shocks, re, or break-down.
● Use the specied cables for wiring, and connect them securely with care to protect electronic
parts from external forces.
Improper connections or xing could cause heat generation, re, etc.
● Seal the inlet hole for remote control cable with putty.
If dew, water, insect, etc. enters through the hole, it could cause electric shocks, re or break-down.
If dew or water enters the unit, it may cause screen display anomalies.
●
Please read this manual carefully before starting installation work to install the unit properly.
Every one of the followings is important information to be observed strictly.
WARNING Failure to follow these instructions properly may result in serious consequences such as death, severe injury, etc.
CAUTION Failure to follow these instructions properly may cause injury or property damage.
It could have serious consequences depending on the circumstances.
●The following pictograms are used in the text.
Never do. Always follow the instructions given.
●Keep this manual at a safe place where you can consult with whenever necessary. Show this manual to installers when moving or repairing the
unit. When the ownership of the unit is transferred, this manual should be given to a new owner.
1. Safety precautions

−5−
WARNING
● When installing the unit at a hospital, telecommunication facility, etc., take measures to
suppress electric noises.
It could cause malfunction or break-down due to hazardous effects on the inverter, private power generator, high frequency
medical equipment, radio communication equipment, etc.
The inuences transmitted from the remote control to medical or communication equipment could disrupt medical activities,
video broadcasting or cause noise interference.
● Do not leave the remote control with its upper case removed.
If dew, water, insect, etc. enters through the hole, it could cause electric shocks, re or break-down.
CAUTION
● Do not install the remote control at following places.
(1)
It could cause break-down or deformation of remote control.
・Where it is exposed to direct sunlight
・Where the ambient temperature becomes 0 °C or below, or 40 °C or above
・Where the surface is not at
・Where the strength of installation area is insufcient
(2)
Moisture may be attached to internal parts of the remote controller, resulting in a display failure.
・Place with high humidity where condensation occurs on the remote controller
・Where the remote controller gets wet
(3)
Accurate room temperature may not be detected using the temperature sensor of the remote controller.
・Where the average room temperature cannot be detected
・Place near the equipment to generate heat
・Place affected by outside air in opening/closing the door
・Place exposed to direct sunlight or wind from air conditioner
・Where the difference between wall and room temperature is large
● To connect to a personal computer via USB, use the dedicated software.
Do not connect other USB devices and the remote controller at the same time.
It could cause malfunction or break-down of the remote controller/personal computer.
Following parts are arranged at site. Prepare them according to the respective installation procedures.
Item name Q’ty Remark
Switch box
For 1 piece or 2 pieces (JIS C8340 or
equivalent)
1
These are not required when
installing directly on a wall.
Thin wall steel pipe for electric
appliance directly on a wall.
(JIS C8305 or equivalent)
As required
Lock nut, bushing (JIS C8330 or equivalent) As required
Lacing (JIS C8425 or equivalent) As required Necessary to run R/C cable on
the wall.
Putty Suitably For sealing gaps
Molly anchor As required
R/C cable (0.3 mm2 x 2 pcs) As required See right table when longer than
100 m
Following parts are provided.
Accessories R/C main unit, wood screw (ø3.5 x 16) 2 pcs, Quick reference
When the cable length is longer than
100 m, the max size for wires used
in the R/C case is 0.5 mm2 . Connect
them to wires of larger size near
the outside of R/C. When wires are
connected, take measures to prevent
water, etc. from entering inside.
≦ 200 m 0.5 mm2 x 2-core
≦ 300m 0.75 mm2 x 2-core
≦ 400m 1.25 mm2 x 2-core
≦ 600m 2.0 mm2 x 2-core
2 . Accessories & Prepare on site

−6−
PCB side (Viewed from rear)
To disassemble the R/C case into the upper and lower pieces after assembling
them once
· Insert the tip of at head screwdriver or the like in the recess at the lower part of
R/C and twist it lightly to remove. It is recommended that the tip of the screwdriver
be wrapped with tape to avoid damaging the case.
Take care to protect the removed upper case from moisture or dust.
In case of embedding wiring
(When the wiring is retrieved “Backward”)
① Embed the switch box and the R/C wires beforehand.
Seal the inlet hole for the R/C wiring with putty.8
50
200
壁
電線管
ロ ッ ク ナ ット
スイッチ
ボックス
パテでシール
すること
リモコン 配 線
下ケース配線穴
ブッシング
センサー USB 端子
37 23 23
固定穴
18.383.5
120
19
120
Secure the installation space shown in the gure.
For the installation method, “embedding wiring” or “exposing
wiring” can be selected.
For the wiring direction, “Backward”, “Upper center” or “Upper left”
can be selected.
Determine the installation place in consideration of the installation
method and wiring direction.
Installation space
30mm
30mm
30mm
120mm
配線
Perform installation and wiring work for the remote controller according to the
following procedure.
Dimensions (Viewed from front)
30mm 30mm
30mm
120mm
Wiring
37 23 23 19
120
Fixing holes
83.5
120
18.3
Wall
Conduit
Sensor USB port Terminal block
Locknut
Bushing
Switch
box
Seal with putty
R/C cable
3. Installation place
4. Installation procedure
R/C temperature sensor
Secure minimum spaces for disassembling the case.
Upper left and Upper right sides
……30mm or more
Bottom side…120mm or more
If using L-shaped screwdriver, 50mm or more is
available.

−7−
8
50
200
壁
電線管
ロ ッ ク ナ ット
スイッチ
ボック ス
パテでシール
すること
リモコン 配 線
下ケース配線穴
ブッシング
When taking the wiring out from the upper center, open a hole before separating the upper and bottom cases. This will reduce risk of
damaging the PCB and facilitate subsequent work.
When taking the wiring out from the upper left, take care not to damage the PCB and not to leave any chips of cut thin wall inside.
② When wires are passed through the bottom case, x the bottom case at 2 places on the switch box.
Switch box for
1 pcs
配線取出口
下
上
下ケース
下
上
下ケース
配線取出口
ねじ取付部の
薄肉部分を
ナイフ等で、
切 りとって
からねじを
し め てくだ
さい 。
Wiring hole on
bottom case
Bottom case
Downside
Upper side
Switch box for
2 pcs
配線取出口
下
上
下ケース
下
上
下ケース
配線取出口
ねじ取付部の
薄肉部分を
ナイフ等で、
切 りとって
からねじを
し め てくだ
さい 。
Bottom case
Cut out the thin
wall part at the
screw mounting
section with a
knife or the like
before tightening
the screw.
Wire outlet
Downside
Upper side
Wire outlet
③
Connect wires from X and Y terminals of R/C to X and Y terminals of indoor unit. R/C
wires (X, Y) have no polarity. Fix wires such that the wires will run around the terminal
screws on the top case of R/C.
④ Install the upper case with care not to pinch wires of R/C.
Cautions for wire connection
Use wires of no larger than 0.5 mm2 for wiring
running through the remote control case. Take care
not to pinch the sheath.
Tighten by hand (0.7 N·m or less) the wire
connection.
If the wire is connected using an electric driver, it
may cause failure or deformation.
In case of exposing wiring
(When the wiring is taken out from the “upper center” or “upper left” of R/C)
① Cut out the thin wall sections on the cases for the size of wire.
② Fix the bottom R/C case on a at surface with two wood
screws.
③ In case of the upper center, pass the wiring behind the
bottom case. (Hatched section)
④ Connect wires from X and Y terminals of R/C to X and Y
terminals of indoor unit. R/C wires (X, Y) have no polarity.
Fix wires such that the wires will run around the terminal
screws on the top case of R/C.
⑤ Install the top case with care not to pinch wires of R/C.
⑥ Seal the area cut in ① with putty.
上面中央の場合
上面左の場合
上ケース 下ケース
120mm
左側の場合 190mm
中央の場合
8
上面中央の場合
上面左の場合
上ケース 下ケース
Upper center Upper left Bottom case
Upper case
120 mm
(for retrieving wire
from upper left)
190 mm
(for retrieving
wire from upper
center)

−8−
Advice: Connection to personal computer
It can be set from a personal computer via the USB port (mini-B).
Connect after removing the cover for USB port of upper case.
Replace the cover after use.
Special software is necessary for the connection.
For details, view the web site or refer to the engineering data.
USB端子
カバー
Advice: Initializing of password
Administrator password (for daily setting items) and
service password (for installation, test run and maintenance) are used.
○
The administrator password at factory default is “0000”. This setting can be changed (Refer to
User's Manual).
If the administrator password is forgotten, it can be initialized by holding down the [F1] and [F2]
switches together for ve seconds on the administrator password input screen.
○ Service password is “9999”, which cannot be changed.
When the administrator password is input, the service password is also accepted.
Up to two units of R/C can be used
at the maximum for 1 indoor unit or 1
group.
One is main R/C and the other is sub
R/C.
Operating range is different depending
on the main or sub R/C.
室内ユニット
リモコン線（
無極性）
リモコン
「親」
リモコン
「子」
Ｘ Ｙ
Ｘ Ｙ
Ｘ Ｙ
Set the “Main” and “Sub” as
described at Section 8.
R/C operations Main Sub
Run/Stop, Change set temp,
Change ap direction, Auto swing, Change fan speed opera-
tions
○ ○
High power operation, Energy-saving operation ○ ○
Silent mode control ○ ×
Useful functions Individual ap control ○ ×
Anti draft setting ○ ×
Timer ○ ○
Favorite setting ○ ○
Weekly timer ○ ×
Home leave mode ○ ×
External ventilation ○ ○
Select the language ○ ○
Silent mode control ○ ×
Energy-saving setting ○ ×
Filter Filter sign reset ○ ○
User setting Initial settings ○ ○
Administrator
settings
Permission/Prohibition
setting ○×
Outdoor unit silent mode
timer ○×
Setting temp range ○ ×
Temp increment setting ○ ×
Set temp display ○ ○
R/C display setting ○ ○
Change administrator
password ○ ○
F1/F2 function setting ○ ○
○: operable ×: not operable
R/C operations Main Sub
Service setting Installation
settings
Installation date ○×
Company information ○ ○
Test run ○ ×
Duct unit settings ○ ×
Change auto-address ○ ×
Address setting of main IU ○ ×
IU back-up function ○ ×
Motion sensor setting ○ ×
R/C function
settings
Main/Sub of R/C ○ ○
Return air temp ○×
R/C sensor ○ ×
R/C sensor adjustment ○ ×
Operation mode ○×
ºC / ºF ○ ×
Fan speed ○×
External input ○ ×
Upper/lower ap control ○ ×
Left/right ap control ○ ×
Ventilation setting ○ ×
Auto-restart ○ ×
Auto temp setting ○ ×
Auto fan speed ○ ×
IU settings ○ ×
Service &
Maintenance
IU address ○ ○
Next service date ○ ×
Operation data ○×
Error
display
Error history ○ ○
Display/erase anomaly
data ○×
Reset periodical check ○ ○
Saving IU settings ○ ×
Special
settings
Erase IU address ○×
CPU reset ○ ○
Restore of default setting ○ ×
Touch panel calibration ○ ○
Indoor unit capacity display ○×
Indoor unit
R/C
“Main”
R/C
“Sub”
R/C cable
(No polarity)
Cover
USB port
[F1] [F2] switch
Delete
Set
Back
Input 4 digit number & tap [Set]
Input password
Input the administrator password.
5. Main/Sub setting when more than one remote controls are used
When connecting two or more FDT/FDTC to one R/C, unify the panel type either to a panel with anti draft function or a standard panel.
Advice

−9−
①Run/Stop switch
One push on the button starts operation and another
push stops operation.
②F1 switch ③F2 switch
This switch starts operation that is set in F1/F2
function setting.
④Operation lamp
This lamp lights in green (yellow-green) during
operation. It changes to red (orange) if any error
occurs.
Operation lamp luminance can be changed.
⑤ LCD (With backlight)
A tap on the LCD lights the backlight.
The backlight turns off automatically if there is no
operation for certain period of time.
Lighting period of the backlight lighting can be
changed.
If the backlight is ON setting, when the screen is
tapped while the backlight is turned off, the backlight
only is turned on. (Operations with switches ①, ②
and ③ are excluded.)
⑥ USB port
USB connector (mini-B) allows connecting to a
personal computer.
For operating methods, refer to the instruction
manual attached to the software for personal
computer (remote control utility software).
Touch panel system, which is operated by tapping the LCD screen with a nger, is employed for any operations other
than the ① Run/Stop, ② F1 ③ F2 switches.
⑤LCD (With backlight)
6. Functions and menu items of the remote control
Names and functions of sections on the R/C (Operating section)
③F2 switch
④Operation lamp
⑥USB port (mini-B)
①Run/Stop switch
②F1 switch
Note
When connecting to a personal computer, do not connect
simultaneously with other USB devices.
Please be sure to connect to the computer directly, without going
through a hub, etc.

−10−
Names and functions of sections on the R/C (Display)
＊All icons are shown for the sake of explanation.
⑫F1 ，F2 switch
function display
① Clock, Room name
display
④Change operation
mode button
TOP screen
⑧Timer button
②Icon display
③Menu button
⑤Change set temp
button
⑥ Change ap
direction button
⑦Change the fan
speed button
⑨Select the
language button
⑪Message display
⑩Zone operation
button

−11−
① Clock, Room name display
Displays the current time and the room name.
②Icon display
Each icon is displayed when one of following settings is
going on.
When the demand
control is effective.
When setting is made
from the sub R/C.
When the central
control (Optional) is running.
When the periodical
inspection is necessary.
During the ventilation
operation.
When ”lter sign” is up.
When the Permission/
Prohibition setting is made.
When the peak-cut
timer is set.
When the weekly timer
is set.
③Menu button
When setting or changing other than the following ④-⑧,
tap the menu button. Then menu items are displayed, select
one and set.
④
Change operation mode button
Displays the operation mode which is selected currently.
Tap this button to change the operation mode.
⑤Change set temp button
Displays the temperature which is set currently. Tap this
button to change the set temperature.
⑥ Change ap direction button
Displays the ap direction which is selected currently. When the
3D auto ow operation is enabled, 3D auto display will appear.
Tap this button to change the ap direction.
⑦Change the fan speed button
Displays the fan speed which is selected currently. Tap this button
to change the fan speed.
⑧Timer button
Displays simplied contents of the timer which is set
currently.
(When two or more timers are set, contents of the timer
which will be operated immediately after is displayed.)
Tap this button to set the timer.
⑨Select the language button
Select a language to be displayed on the R/C.
⑩Zone operation button
Tap this button to go to the zone operation screen.
⑪Message display
Status of air conditioner operation and messages of the
R/C operations etc. are displayed.
⑫F1 ，F2 switch function Display
Displays the function that is set for each F1 ，F2
switch.
The function for these switches can be changed in F1/F2
function setting.

−12−
Main menu
Run ………………………………………………………………………………………… 5
Stop………………………………………………………………………………………… 6
Change operation mode ………………………………………………………………… 9
Change set temp ………………………………………………………………………… 23
Change ap direction …………………………………………………………………… 10
Change the fan speed …………………………………………………………………… 9
Zone ON/OFF operation ……………………………………………………………… <?>
Zone name setting……………………………………………………………………… <?>
F1, F2 switch operation…………………………………………………………………… 26
Anti draft ON/OFF operation ………………………………………………………… <?>
High power operation …………………………………………………………………… 14
Energy-saving operation ………………………………………………………………… 21
Individual ap control……………………………………………………………………… 27
Anti draft setting…………………………………………………………………………… 31
Timer …………………………………………………………………………………………
Set ON timer by hour …………………………………………………… 39
Set OFF timer by hour ………………………………………………… 40
Set ON timer by clock…………………………………………………… 12
Set OFF timer by clock ………………………………………………… 41
Conrm…………………………………………………………………… 42
Favorite setting …………………………………………………………………………… 24
Weekly timer ……………………………………………………………………………… 42
Home leave mode………………………………………………………………………… 26
External ventilation ……………………………………………………………………… 24
Select the language …………………………………………………………………………
Silent mode control …………………………………………………………………… <?>
Sleep timer ………………………………………………………………………………… 21
Peak-cut timer …………………………………………………………………………… 22
Automatic temp set back ………………………………………………………………… 25
Motion sensor control …………………………………………………………………… 26
Filter sign reset …………………………………………………………………………… 30
Initial settings ……………………………………………………………………………… 21
Clock setting …………………………………………………………… 9
Date & time display ……………………………………………………… 34
Summer time …………………………………………………………… 35
Contrast ………………………………………………………………… 35
Backlight ………………………………………………………………… 36
Controller sound ………………………………………………………… 36
Operation lamp luminance ……………………………………………… 37
Administrator settings …………………………………………………………………… 29
Permission/Prohibition setting ………………………………………… 52
Outdoor unit silent mode timer ………………………………………… 53
Setting temp range ……………………………………………………… 54
Temp increment setting ………………………………………………… 56
Set temp display ………………………………………………………… 56
R/C display setting ……………………………………………………… 57
Change administrator password ……………………………………… 62
F1/F2 function setting …………………………………………………… 63
Basic operation
Useful functions
Energy-saving setting
Filter
User setting
7. Main item
Please refer to
User’s manual.

−13−
Main menu
Installation settings
Installation date ………………………………………………………… 16
Company information …………………………………………………… 16
Test run …………………………………………………………………… 16
Duct unit settings ………………………………………………………… 17
Change auto-address …………………………………………………… 18
Address setting of main IU ……………………………………………… 18
IU back-up function ……………………………………………………… 18
Motion sensor setting …………………………………………………… 19
R/C function settings
Main/Sub of R/C ………………………………………………………… 20
Return air temp ………………………………………………………… 20
R/C sensor ……………………………………………………………… 20
R/C sensor adjustment ………………………………………………… 21
Operation mode ………………………………………………………… 21
ºC / ºF …………………………………………………………………… 21
Fan speed ……………………………………………………………… 21
External input …………………………………………………………… 21
Upper/lower ap control ………………………………………………… 22
Left/right ap control …………………………………………………… 22
Ventilation setting ……………………………………………………… 22
Auto-restart ……………………………………………………………… 22
Auto temp setting ……………………………………………………… 22
Auto fan speed ………………………………………………………… 22
IU settings
Fan speed setting ……………………………………………………… 23
Filter sign ………………………………………………………………… 24
External input 1 ………………………………………………………… 24
External input 1 signal…………………………………………………… 24
External input 2 ………………………………………………………… 24
External input 2 signal…………………………………………………… 24
Heating thermo-OFF temp adjustment ………………………………… 25
Return temperature adjustment………………………………………… 25
Fan control in cooling thermo-OFF …………………………………… 25
Fan control in heating thermo-OFF …………………………………… 25
Anti-frost temp …………………………………………………………… 25
Anti-frost control ………………………………………………………… 25
Drain pump operation …………………………………………………… 26
Keep fan operating after cooling is stopped…………………………… 26
Keep fan operating after heating is stopped ………………………… 26
Intermittent fan operation in heating …………………………………… 26
Fan circulator operation ………………………………………………… 26
Control pressure adjust ………………………………………………… 26
Auto operation mode …………………………………………………… 27
Thermo. rule setting …………………………………………………… 29
Auto fan speed control ………………………………………………… 29
IU overload alarm ……………………………………………………… 30
External output setting ………………………………………………… 30
Service & Maintenance
IU address ……………………………………………………………… 31
Next service date………………………………………………………… 31
Operation data…………………………………………………………… 31
Error display……………………………………………………………… 32
Saving IU settings ……………………………………………………… 33
Special settings ………………………………………………………… 34
Indoor unit capacity display …………………………………………… 34
Contact company ………………………………………………………………………… 16
Service setting
Contact company
Please refer to
User’s manual.

−14−
8. Power on and initial setting
Set the main and sub R/C units according to the display at the power on.
･ Main/Sub setting not performed => (1)
･ Main/Sub setting performed => (2)
⑴When the main and sub are not yet set,
①⇒② Main/sub input screen is displayed.
When tapping the or button, initial setting starts.
If any wrong button has been tapped by mistake, the setting can be changed after the end of the initializing operation. (10. R/C
function setting④)
When using two remote controllers for one IU or one group, if the rst one is set for the , the second is set for the
automatically.
Main Sub
Main
Sub
Caution
When only one unit of R/C is
used, tap the button.
In the state of initial setting, if
either one of buttons ([Main]/[Sub])
is not tapped, it keeps the screen
unchanged.
Main
①Start screen ②Main/sub set input
The screen changes to ③⇒④⇒⑤.
The screen changes to ①⇒⑧⇒⑤.
Main
Sub
Version :
Program ID :
③IU search on ④IU info acquisition on ⑤TOP screen
The red LED will blink if communication is
not established in ten minutes.
Loading IU settings.Searching IU
Will nish 1230 seconds later.

−15−
(2) When the main and sub are set
⑧Initialize set on ⑥Set continue acknowledge
Yes The screen changes to ⑧⇒⑤.
No The screen changes to ⑦.
If the screen is not tapped for more than
15 seconds, the Yes (Continue) is
selected and the display changes to the
screen of ⑤.
⑦Initialize acknowledge
Yes The screen changes to ①⇒②.
No The screen changes to ⑥.
After the initializing, it returns to the
default state.
Do you want to save up the previous
settings of R/C before power ON?
Do you want to restore default
R/C setting?
R/C is initializing.
Yes YesNo No

−16−
9. Installation settings and test run
Select the date with ▲ ▼ buttons,
and tap the Set button.
The selected screen is displayed. The selected screen is displayed.
②Installation settings menu #2
⑧Cooling test run
This can be operated while cooling is
stopped. When the room temperature
is too low to start the cooling test run, it
operates for 30 minutes by decreasing the
set temperature to 5°C.
⑨Drain pump test run
Drain pump can be operated
independently.
Cooling test run
Back
Start
When tapping [Start], test run starts
for 30 min. at 5°C in cooling.
Finish-condition of test run is follows.
Passage of 30 min./Stop the IU/Change "Set temp",
"Operation mode" on the TOP screen.
Drain pump test run
Back
Run Stop
Select the item.
Select the item.
Installation settings
Address setting of main IU
IU back-up function
Motion sensor setting
Previous Back
Select the item.
③Installation date
Installation date
yy
mmdd
BackSet
Set the date.
21
20
24
⑥Enter the Phone No.
Enter the phone number of the company
using up to 13 characters and then tap the
Set button.
Phone No.
Back
Set
Delete
Input the phone No & tap [Set].
④Company information
Enter the company information.
5
6
Company information
Company
Phone No.
Back
Select the item.
⑤Enter the Company
Enter the company name using up to
26 one-byte characters and then tap
the Set button. You can enter
alphanumeric, Japanese Kana, Kanji,
Cyrillic, or Chinese characters.
Company
Back
Set
漢字
Number Alphabet
カナ
NextDelete
Input the name & tap [Set].
汉字
TOP screen Menu ⇒ Service setting ⇒ Installation settings ⇒ Service password
The selected screen is displayed.
⑦Test run
Test run
Cooling test run
Drain pump test run
Compressor Hz xed operation
Back
Select the item.
8
9
①Installation settings menu #1
4
3
7
10
18

−17−
This is operable in case
of connecting duct type IU
equipped with the external static
pressure adjustment function.
Select the external static
pressure and tap the Set
button.
⑪Static pressure adjustment
Static pressure adjustment
Back
Set
Tap ▲▼ to set the value of Pa.
AUTO
Pa
Static pressure adjustment :
Performs external static pressure
Adjustment for the duct unit.
Zone settings : Set when
performing zone control.
Zone settings reset : Resets all
zone settings.
⑩Duct unit settings
11
12
17
Set when performing zone
control.
Set whether or not there is a
common zone.
(Enable: Present, Disable: Not
present)
A common zone is a zone in
which a damper is not installed.
⑫Zone settings
Design the duct so that the
common zone equals 50% of
total air ow.
If this is acceptable, tap the
OK button.
⑬Zone settings
Set the existence of zones 1 to 4.
(Enable: Present, Disable: Not
present)
Zones 1 to 3 can be set when
setting common zones.
⑭Zone settings
Select a Spill zone.
Zones set as spill zones will
automatically open if the spill
zone is closed and one or more
other zone are closed.
Spill zone selection is required
when there is no common zone.
This screen will not be
displayed if there is a common
zone.
⑮Zone settings

−18−
In case of Multi series (KX) models, the IU addresses registered with the auto-address
setting method can be changed with this function.
This function changes the OU address for each IU. Select an IU and,
Ⅰ When an indoor unit is selected and the Change button is tapped, the display
changes to the Change auto-address screen ⑲.
Ⅱ Tap the Set button to return to the screen ⑱ and display the new address.
Ⅲ Tap the Finish button to register the new address.
In case of Multi Series (KX) models, it is
possible to let indoor units (Sub IUs) follow
the operation mode (Heating, cooling) of
the indoor unit (Main IU). Set the address
of the Main IU to the Sub IUs The Sub IUs
to which the Main IU address is set follow
the Main IU settings.
⑳Address setting of main IU
Address setting of main IU
Back
Set
Cancel
Tap ▲▼ to set address & [Set].
⑱Change auto-address
Change auto-address
Back
Finish
IU address OU address
NextChange
Select the IU address to be changed.
Ⅰ
Ⅲ
⑲Change auto-address
Change auto-address
Back
Set
IU address
No.2
OU address
No.0
Tap ▲▼ to set address & [Set].
In case of 2 sets of indoor units (2 groups) connected to one R/C, it is available to perform
back-up operation with them.
1.
IU rotation: Operate 2 sets of indoor units alternately at every set time of operation
interval.
2.
IU capacity back-up: When the temp difference between the set temp and the actual
room temp is higher than the set temp diff., 2 sets of indoor units operate.
3.
IU fault back-up: If one of the IU has a fault and stops, the other one starts operation.
Select Enable / Disable (tapping Disable changes to Enable ) and tap the Enter
button to conrm the settings.
󰼼IU Back-up function
IU back-up function
Back
Details
Details
Enter
Disable
IU fault back-up
Disable
IU capacity back-up
Disable
IU rotation
Select the item.
Ⅱ
22
23
Resets all zone settings.
If this is acceptable, tap the
Yes button.
⑰Zone settings reset
Design the duct so that the spill
zone equals 50% of total air
ow.
If this is acceptable, tap the
OK button.
⑯Zone settings

−19−
･
For customers who adapt a motion sensor, please proceed the setting shown on
the left and enable the indoor unit to be used to detect the activity amounts of
persons.
When the motion sensor is disabled, activity amounts of persons will not be
detected and thus the motion sensor control (power saving and auto-off) will not be
performed.
･
For indoor units without a motion sensor, tap the Motion sensor setting to display
“Invalid request”.
In IU rotation function, the timer to changeover the operation of
2 indoor units is set.
The timer can be set within the range of 1 to 999 hours in
increments of one hour.
After the time is changed, tap Set for temporary setting.
After temporary setting, return to the IU Back-up function screen
and tap Enter .
The difference between the setting temperature for a change
between one unit and two units for capacity back-up and room
temperature is set.
The temperature can be set within the range of 2 to 5 °C in
increments of 1 °C.
After the temperature is changed, tap Set for temporary
setting.
After temporary setting, return to the IU Back-up function screen
and tap Enter .
Back-up control restrictions
1. The back-up control is unavailable when the operation mode is "Auto". When the back-up control is set for the air conditioner that
species "Auto" for the operation mode, the operation mode changes to "Cooling" automatically.
2. When the rotation control is set, the fault back-up control will be enabled automatically. In this case, the fault back-up control cannot
be disabled alone. When the rotation operation is disabled, the fault back-up control will also be disabled.
3. When the capacity back-up control is set, the fault back-up control will be enabled automatically. In this case, the fault back-up control
cannot be disabled alone. When the capacity back-up control is disabled, the fault back-up control will also be disabled.
4. It is also possible to enable the fault back-up control alone.
5. The home leave mode, warming up and external input cannot be set together with the back-up control.
6. While the rotation or fault back-up control is set, either of the two target indoor units (two groups) will operate. Both units will not
operate at the same time.
7. An indoor unit having younger address will start the operation rst in each control.
󰽈Capacity back-up details
Set the temp diff. for back-up
Back
Set
Tap ▲▼to set temp & tap [Set].
󰽇Rotation details
Set the time for changeover
Back
Set
Set the time.
hours
Select Enable / Disable for the motion
sensor of the indoor unit connected to the
R/C.
󰽉Motion sensor setting
Select the item.
Motion sensor setting
Disable
Enable
Back

−20−
10. R/C function settings Advice: It is valid when unit stops.
⑤Return air temp
①R/C function settings menu #1
4
5
9
12
6
The selected screen is displayed.
④Main/Sub of R/C
Use this when changing the Main/Sub
setting of R/C.
③R/C function settings menu #3 ②R/C function settings menu #2
Thermo. rule is applied based on the temperature detected with the return air temp sensor of
IU.
When plural indoor units are connected to one R/C, the return air temp applied to the thermo.
rule can be selected.
1.
Individual
：Thermo. rule is applied based on the return air temp of each IU. When plural
units are connected to one R/C, it is based on the return air temp of the main unit.
2.
Master IU
：Thermo. rule is applied based on the return air temp of IU having the
youngest address out of IUs connected.
If there are several sets of plural units each of which is connected to one R/C, it is based on
the IU having the youngest address out of the main units of each plural units.
3.
Averaged temp
：Thermo. rule is applied based on the average of return air
temperatures of IUs connected.
R/C function settings
Main/Sub of R/C
Return air temp
R/C sensor
R/C sensor adjustment
Operation mode
Next Back
Select the item.
R/C function settings
ºC / ºF
Fan speed
External input
Upper/lower ap control
Left/right ap control
Next Back
Select the item.
Previous
Main/Sub of R/C
Main
Sub
Back
Select the item.
13
14
15
16
17
Return air temp
Individual
Master IU
Back
Select the item.
Averaged temp
R/C function settings
Ventilation setting
Auto-restart
Auto temp setting
Back
Select the item.
Previous
Auto fan speed
TOP screen Menu ⇒ Service setting ⇒ R/C function settings ⇒ Service password
18
20
21
19
⑥R/C sensor You can change IU main unit return air temperature sensor to the R/C side.
Disable The Indoor temp display changes to the temperature measured by the
sensor at the main unit. ⇒⑦
Enable The Indoor temp display changes to the temperature measured by the R/C
side sensor. ⇒⑧
Enable(Heating only) The Indoor temp display changes to the temperature measured
by the R/C side sensor during heating only.
Enable(Cooling only) The Indoor temp display changes to the temperature measured
by the R/C side sensor during cooling only.
R/C sensor
Disable
Enable
Back
Select the item.
Enable(Heating only)
Enable(Cooling only)