MITSUBISHI ELECTRIC PAR-U01MEDU Smart ME Controller Instruction Manual

June 16, 2024
Mitsubishi Electric

PAR-U01MEDU Smart ME Controller

Product Information

Specifications

  • Product Name: CITY MULTI Control System Smart ME Controller
    PAR-U01MEDU

  • Instruction Book: English

Product Features

Controller Interface

  1. Occupancy Sensor: The occupancy sensor detects vacancy for
    energy-save control.

  2. Brightness Sensor: The brightness sensor detects the brightness
    of the room for energy-save control.

  3. Temperature & Humidity Sensor: The sensor detects the room
    temperature and the relative humidity.

  4. LED Indicator: The LED indicator indicates the operation status
    in different colors. It lights up during normal operation, turns
    off when units are stopped, and blinks when an error occurs.

  5. Touch Panel & Backlit LCD: The touch panel shows the
    operation settings screen. When the backlight is off, touching the
    panel turns the backlight on, and it will stay lit for a
    predetermined period of time.

Product Usage Instructions

Energy-Save Control with Occupancy Sensor and Brightness

Sensor

The built-in occupancy sensor and brightness sensor allow for
energy-save control. The occupancy sensor detects vacancy, and the
brightness sensor detects the brightness of the room.

The following energy-save control modes are available:

  • Non-use ON/OFF: Automatically turns off the unit when it is not
    being used.

  • Operation Mode: Sets the desired operation mode.

  • Set Temperature Offset: Adjusts the temperature offset for
    energy-saving purposes.

  • Fan Speed Down: Reduces the fan speed to save energy.

  • Thermo-off: Turns off the thermostat when the room is
    unoccupied.

LED Indicator

The LED indicator on the controller has different functions and
colors to indicate the operation status:

  • Lights up in different colors according to the operation mode
    or the room temperature.

  • Turns off when the unit is stopped.

  • Blinks in the color it is illuminated in at the time when an
    error occurs.

  • Lights up in a predetermined color when energy-save control is
    being performed.

The brightness of the LED indicator can be adjusted on the LED
Indicator setting screen.

Default Color Setting

The default color settings for the LED indicator are as
follows:

  • Blue: Cool (Auto_Cool, Setback_Cool)
  • Light Blue: Drying
  • Yellow: Fan
  • White: Auto
  • Green: Setback
  • Red: Heat (Auto_Heat, Setback_Heat)
  • Lime: Energy-save control is in effect when the occupancy
    sensor detected vacancy.

Note: Purple, pink, and orange colors are not used by
default.

Safety Precautions

General Precautions

WARNING: Do not install the unit in a place
where large amounts of oil, steam, organic solvents, or corrosive
gases, such as sulfuric gas, are present or where acidic/alkaline
solutions or sprays are used frequently. These substances can
compromise the performance of the unit or cause certain components
of the unit to corrode, which can result in electric shock,
malfunctions, smoke, or fire.

Frequently Asked Questions (FAQ)

Q: Who should install the remote
controller?

A: The remote controller should only be installed by qualified
personnel.

Q: How can I adjust the brightness of the LED
indicator?

A: The brightness of the LED indicator can be adjusted on the
LED Indicator setting screen.

CITY MULTI Control System
Smart ME Controller PAR-U01MEDU
Instruction Book

English

Prior to use, thoroughly read the instructions in this manual to use the product correctly. Retain this manual for future reference. Make sure that this manual and Installation Manual are passed on to any future users. To ensure safety and proper operation of the remote controller, the remote controller should only be installed by qualified personnel.

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Product features
Smart ME controller is a remote controller designed to control Mitsubishi Electric’s air conditioning units and also allows for the control of other manufacturer’s products connected via Mitsubishi Electric’s AHC. It can control up to sixteen indoor units and one AHC. Smart ME controller features such basic functions as operations and monitoring of air conditioning units and schedule-control functions and is equipped with four built-in sensors (temperature, humidity, occupancy, brightness), which enable an integrated control of the system, including the humidifiers and ventilation units connected to the system via AHC, to help create comfortable environment. When the built-in occupancy sensor detects vacancy in a specific zone, the controller uses its internal function to reduce energy-consumption.
Controller interface
1
2
5

1 Occupancy Sensor
The occupancy sensor detects vacancy for energy-save control.
2 Brightness Sensor
The brightness sensor detects the brightness of the room for energy-save control.
3 Temperature & Humidity Sensor
The sensor detects the room temperature and the relative humidity.

3
4
4 LED Indicator
The LED indicator indicates the operation status in different colors. The LED indicator lights up during normal operation, lights off when units are stopped, and blinks when an error occurs.
5 Touch panel & Backlit LCD
The touch panel shows the operation settings screen. When the backlight is off, touching the panel turns the backlight on, and it will stay lit for a predetermined period of time.

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Energy-save control with the use of the built-in occupancy sensor
Occupancy sensor Brightness sensor

· Energy-save control will be performed when the occupancy sensor detects vacancy. · When the occupancy sensor detects no human movement for a certain period of time, this will be
regarded as the vacancy.
· One of the following energy-save controls can be used at a time.

Energy-save control mode Non-use ON/OFF Operation mode Set temperature offset Fan speed down Thermo-off

Control when vacancy is detected ­ The unit will be turned off. The operation mode will be set to “Setback.” The set temperature will be offset. The fan speed will be set to “Low.” The unit will go into the Thermo-off state.

· Energy-save control can be stopped according to the brightness level detected by the brightness sensor. (Example: While the occupants are sleeping at night)

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LED Indicator

LED Indicator

· The LED indicator indicates the operation status by lighting and blinking with different colors and brightness (High/Low), or by turning off.
· Indicator colors: Blue, Light blue, Purple, Red, Pink, Orange, Yellow, Green, Lime, and White

Operation status
The unit is in operation.
The unit is stopped. An error is occurring. Energy-save control is being performed. The occupancy sensor has sensed an occupant. A button is touched on the Home screen.

LED indicator Lights up in different colors according to the operation mode or the room temperature (three different levels). 1 Turns off. Blinks in the color it is illuminated in at the time. Lights up in the predetermined color. 1
Inverts the brightness (High/Low) twice. 1
Inverts the brightness (High/Low).
1

*1 The settings can be made on the LED Indicator setting screen.

Default color setting

Color

Operation mode setting (default)

Room temperature

Blue

Cool (Auto_Cool, Setback_Cool)

32ºF­69ºF (0ºC­21ºC)

Light blue Drying

Not used

Yellow

Fan

70ºF­79ºF (21.5ºC­26ºC)

White

Auto

Not used

Green

Setback

Not used

Red

Heat (Auto_Heat, Setback_Heat)

80ºF­104ºF (26.5ºC­40ºC)

Lime

Energy-save control is in effect that has been performed when the occupancy sensor detected vacancy.

  • Purple, pink, and orange are not used by default.

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Contents
Product features··························································· 2
Controller interface ············································································ 2
Safety precautions ························································ 6
Screen display ····························································· 8
Screen configuration ·········································································· 8 Display···························································································10 Menu structure ················································································14 Icon explanations ·············································································16
Basic operations························································· 17
Power ON/OFF ···············································································17 Operation mode, Set temperature, and Override control settings················18 Fan speed and Air direction settings·····················································23 Louver setting··················································································25 LOSSNAY setting ·············································································26 Hold setting·····················································································27 Humidity setting ···············································································28
Navigating through the Menu ········································ 29
Menu list ························································································29 About passwords ·············································································30 Navigating through the Menu ······························································31
Function settings ························································ 35
Date and time··················································································35 Schedule ························································································38 Timer ·····························································································41 Display format ·················································································45 Sound and contrast ··········································································47 Energy saving (Assist function) ···························································48 LED Indicator ··················································································54 Touch panel calibration······································································57 Lock operations ···············································································58 Sensor threshold setting ····································································59 Set temp. range limit ·········································································64 Auto return······················································································67
Maintenance······························································ 70
Screen cleaning ···············································································70 Filter information ··············································································71
Troubleshooting ························································· 73
Error information ··············································································73
Specifications ···························································· 75
Controller specifications·····································································75 List of functions that can/cannot be used in combination ··························76

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Safety precautions

· Thoroughly read the following safety precautions before using the unit. · Observe these precautions carefully to ensure safety.
WARNING Indicates a risk of death or serious injury.
CAUTION Indicates a risk of serious injury or structural damage.
· After reading this manual, pass it on to the end user to retain for future reference. · Keep this manual for future reference and refer to it as necessary. This manual should be made available
to those who repair or relocate the controller. Make sure that the manual is passed on to any future users.

General precautions
WARNING
Do not install the unit in a place where large amounts of oil, steam, organic solvents, or corrosive gases, such as sulfuric gas, are present or where acidic/alkaline solutions or sprays are used frequently. These substances can compromise the performance of the unit or cause certain components of the unit to corrode, which can result in electric shock, malfunctions, smoke, or fire.
To reduce the risk of shorting, current leakage, electric shock, malfunctions, smoke, or fire, do not wash the controller with water or any other liquid.
To reduce the risk of electric shock, malfunctions, smoke or fire, do not operate the touch panel or touch other electrical parts with wet hands.
When disinfecting the unit using alcohol, ventilate the room adequately. The fumes of the alcohol around the unit may cause a fire or explosion when the unit is turned on.

To reduce the risk of injury or electric shock, before spraying a chemical around the controller, stop the operation and cover the controller.
To reduce the risk of injury or electric shock, stop the operation and switch off the power supply before cleaning, maintaining, or inspecting the controller.
If any abnormality (e.g., burning smell) is noticed, stop the operation, turn off the power switch, and consult your dealer. Continued use of the product may result in electric shock, malfunctions, or fire.
Properly install all required covers to keep moisture and dust out of the controller. Dust accumulation and water can cause electric shock, smoke, or fire.

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Safety precautions

CAUTION
To reduce the risk of fire or explosion, do not place flammable materials or use flammable sprays around the controller.
To reduce the risk of damage to the controller, do not directly spray insecticide or other flammable sprays on the controller.
To reduce the risk of environmental pollution, consult an authorized agency for proper disposal of remote controller.

To reduce the risk of electric shock or malfunctions, do not touch the touch panel with a pointy or sharp object.
To reduce the risk of injury and electric shock, avoid contact with sharp edges of certain parts.
To avoid injury from broken glass, do not apply excessive force on the glass parts.
To reduce the risk of injury, wear protective gear when working on the controller.

Relocation and repairs
WARNING
The controller should be repaired or moved only by qualified personnel. Do not disassemble or modify the controller. Improper installation or repair may cause injury, electric shock, or fire.

CAUTION
To reduce the risk of shorting, electric shock, fire, or malfunction, do not touch the circuit board with tools or with your hands, and do not allow dust to accumulate on the circuit board.

Additional precautions
To avoid damage to the controller, use appropriate tools to install, inspect, or repair the controller.
This controller is designed for exclusive use with the Building Management System by Mitsubishi Electric. The use of this controller for with other systems or for other purposes may cause malfunctions.
To avoid discoloration, do not use benzene, thinner, or chemical rag to clean the controller. To clean the controller, wipe with a soft cloth soaked in water with mild detergent, wipe off the detergent with a wet cloth, and wipe off water with a dry cloth.

To avoid damage to the controller, provide protection against static electricity.
Properly dispose of the packing materials. Plastic bags pose suffocation hazard to children.
To avoid damage to the controller, do not overtighten the screws.

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Screen display
Screen configuration
General equipment screen

Home screen

This screen will not appear if no Advanced HVAC CONTROLLERs (AHC) are connected.

Menu (User) screen

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Indoor unit setting screen

Screen display Humidity setting screen

The setting items that are not available for the connected indoor unit will not appear on the display.
Menu (Service) screen

This screen will not appear if no Advanced HVAC CONTROLLERs (AHC) are connected.

A password is required to access the Menu (Service) screen.

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Screen display

Display
Home screen
Basic

  • All icons are displayed for explanation.
    d f g e 0 a
    h k l
    Advanced

ij 9

1

2

q

c 6 b 7
8 5

3

4

p

r

10

mn

o

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Screen display

1 [ON/OFF] button
Touch to turn ON/OFF the indoor unit.
2 [Operation mode] button
Touch to change the operation mode.
3 [Hold/Cancel Hold] button
Touch to enable/disable the Hold function.
4 [Menu] button
Touch to bring up the Menu screen.
5 LED Indicator ON/OFF button
Touch to turn ON/OFF the LED indicator.
6
Touch to decrease the set temperature.
7
Touch to increase the set temperature.
8
Touch to go to the Indoor unit setting screen.
9 Room name
Room name appears here.
0 Room temperature
Current room temperature appears here.
a Humidity
Current room humidity appears here.
b Set temperature
The set temperature appears here. The display varies with the selected operation mode.
c Day and time
Current day and time appear here.
d
The icon and the word “Schedule” appear when the scheduled operation is being performed. The icon and the word “Hold” appear when the Hold function is enabled.
The icon and the word “Timer” appear when the ON/ OFF timer is activated.
e
Appears when the occupancy sensor senses an occupant.
f
Appears when the brightness sensor detects light brighter than a predetermined level.

g
Appears during the energy-save control (depending on the indoor unit model).
h Filter sign
Appears when the filter needs maintenance.
i Cool or Heat display
The current operation mode (Cool or Heat) appears when Setback or Auto mode is selected.
j
Appears when the built-in thermistor on the remote controller is activated to monitor the room temperature.
appears when the thermistor on the indoor unit is activated to monitor the room temperature.
k
Appears when the operation is centrally controlled.
l
Appears when the operation is locked.
m Auto-OFF display
Appears when the Auto-OFF timer is activated.
n
Indicates the interlocked LOSSNAY unit (ventilator) setting.
o Remaining override time
The remaining override time appears when the set temperature for the Setback mode has been overridden by the controller. The temperature setting returns to the previous setting after the displayed time has elapsed.
p [Cancel] button
Appears when the set temperature for the Setback mode has been overridden by the controller. Touching this button will return the set temperature to the previous setting. “Temp. range” appears when the settable temperature range is restricted.
q Set to
“Override” appears when the set temperature for the Setback mode has been overridden.
r
Touch to go to the General equipment screen.

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Screen display
Indoor unit setting screen

s

u

w

x

t

v

General equipment screen

y

z

A
Humidity setting screen
B C D

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s Fan speed
Touch to change the fan speed.
t Louver
Touch to turn ON/OFF the louver.
u Air direction
Touch to change the air direction.
v LOSSNAY
Touch to change the fan speed of the LOSSNAY unit.
w
Touch to return to the Home screen.
x
Touch to go to the Humidity setting screen.
y AHC input/output status
The input and output status of the general equipments connected to Advanced HVAC CONTROLLER (AHC) appear.
z
Touch to go to the Home screen.
A
Touch to go through the General equipment screen pages.
B
Touch to decrease the set humidity.
C
Touch to increase the set humidity.
D
Touch to go to the Indoor unit setting screen.

Screen display

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Screen display

Menu structure

Menu (User)

Date and time

Schedule Timer
Settings

Screen cleaning Filter information Error information

··· Page 35 Enter date and time Date and time format Daylight saving time
··· Page 38 ··· Page 41
ON/OFF timer Auto-OFF timer

··· Page 35 ··· Page 36 ··· Page 37
··· Page 41 ··· Page 43

Display format

··· Page 45

— Language — Temperature unit — Room temperature display — Backlight timeout

Sound and contrast

··· Page 47

Energy saving

··· Page 48

LED Indicator

··· Page 54

— LED indicator setting — With Brightness sensor

Touch panel calibration ··· Page 57

Lock operations

··· Page 58

Sensor threshold setting ··· Page 59
— Occupancy sensor — Brightness sensor

Set temp. range limit

··· Page 64

Auto return

··· Page 67

··· Page 70

··· Page 71

··· Page 73

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Screen display

Menu (Service)

··· Refer to the Installation Manual for details. Setup Group setting Interlock setting Search connection information Cool/Heat display Override control Temperature sensor offset Humidity sensor offset Auto mode Single/dual Room name Telephone number IC Function settings LED color adjustment Reset RC AHC port name screen
Error menu Error history Self check
Test run

Not all functions are available on all models of indoor units.

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Screen display

Icon explanations
Controller operation

Timer

1

The table below summarizes the square icons used in this manual.

The user password must be entered on the [Login page] to change settings.
1 There is no settings that can skip this process.
: Touch to move the cursor left. : Touch to move the cursor right. – : Touch to input the number.

  • Changes cannot be made unless the correct password is entered.

ON Indicates settings that can be changed only while the units are in operation.
Indicates functions that are not available when the buttons are locked or the system is centrally controlled.

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Basic operations

Power ON/OFF
Button operation
ON/OFF

Touch the [ON/OFF] button to turn on or off the indoor unit.

  • The LED indicator will light up when the indoor unit is turned on.
  • The LED indicator display depends on the settings for the function settings.
  • When the operations of the LOSSNAY and indoor units are interlocked, LOSSNAY units will turn on (or off) when indoor units are turned on (or off).
  • The unit will operate with the previously-set operation mode, set temperature, and fan speed.

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Basic operations

Operation mode, Set temperature, and Override

control settings

ON

Button operation

Operation mode

Touch the [Operation mode] button to go through the operation modes in the following order. Select the desired operation mode.

Cool
Heat *1

Drying 1
Setback
1

Fan
Auto 12

1 Operation modes that are not available for the connected indoor unit will not appear on the display.
2 Depending on the indoor unit model, either one or two set temperatures (single or dual set point(s)) can be set for Auto mode.

  • Touching and holding the [Operation mode] button for two seconds or longer will display the Operation mode setting screen.
  • LED indicator color changes according to the operation mode and the settings for the function settings.

What the blinking mode name means The mode name will blink when other indoor units in the same refrigerant system (connected to the same outdoor unit) are already operated in a different mode. In this case, the rest of the unit in the same group can only be operated in the same mode.

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Basic operations

Auto (dual set point) and Setback modes:
When the operation mode is set to the Auto (dual set point) mode or the Setback mode, two set temperatures (one each for cooling and heating) can be set. Depending on the room temperature, indoor unit will automatically operate in either the cooling or heating mode and keep the room temperature within the preset range.

Differences between the two modes
· Auto (dual set point) mode The set temperatures that are specified for the Cool/Drying mode and the Heat mode will be used to automatically control the room temperature to stay within the set temperatures. This mode is especially effective during the in-between seasons, when the temperature difference between the highest and the lowest is large and both heating and cooling modes are used within the same day.

Set temp. (Cool)
Set temp. (Heat)

Operation pattern during Auto (dual set point) mode
The room temperature changes corresponding to the change in the outside temperature.

Room temperature

Heat

Cool

Heat

Cool

· Setback mode Room temperature is controlled to stay within the set temperature range that is specified for the Setback mode. By leaving sufficient temperature differential between the set temperature for cooling (upper limit) and heating (lower limit), it is possible to keep the room temperature within the specified range without overworking the air conditioners. This setting will be especially effective during periods of non- occupancy.

Set temp. (Setback_Cool)

Operation pattern during Setback mode
The room temperature changes corresponding to the change in the outside temperature.

Room temperature

Set temp. (Setback_Heat)

Heat

Cool

Heat

Cool

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Basic operations

Button operation
Set temperature

Touch or temperature.

to decrease or increase the set

· Depending on the Temperature unit setting, temperatures will decrease or increase by 1ºF, 0.5ºC, or 1ºC increments. (See page 45.)
· Refer to the table on page 21 for the settable temperature range for different operation modes.
· Set temperature cannot be set for the Fan mode.

Auto (dual set point) or Setback mode

Cool, Heat, or Auto (single set point) mode

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Basic operations

Set temperature range

Operation mode

Set temperature range

Cool/Drying

67ºF­95ºF/19ºC­35ºC 15

Heat

40ºF­83ºF/4.5ºC­28ºC 15

Auto (single set point)

67ºF­83ºF/19ºC­28ºC 12*5

Auto (dual set points)

Cool: Same as the set temperature range for Cool mode Heat: Same as the set temperature range for Heat mode 2345

Setback

Cool: Same as the set temperature range for Cool mode Heat: Same as the set temperature range for Heat mode *4

Fan

Not settable

1 The settable temperature ranges vary, depending on the indoor unit model. 2 The set temperature for Auto mode (either single or dual set point(s)) will appear depending on the indoor unit
model. 3 The same values are used for the set temperature for Cool/Drying mode and the cooling set temperature for Auto
mode (dual set points). Likewise, the same values are used for the set temperature for Heat mode and the heating set temperature for Auto mode (dual set points).
4 The cooling and heating set temperatures can be set under the following conditions. · The cooling set temperature is greater than the heating set temperature. · The difference between the cooling and heating set temperatures is equal or greater than the minimum
temperature difference that varies with the indoor unit model. *5 Restrictions for the set temperature range will apply, if any. If the setting value is outside of the range, a message
“Temp. range locked” will appear.

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Basic operations

Button operation

Override control

This function temporarily overrides the Setback temperature setting. The Override control begins when the set temperature is changed while units are operated in the Setback mode. Once the Override control begins, the remaining time in which the Override control is effective will appear. Once the remaining time has elapsed, the temperature setting will return to the original setting.

The duration of Override control can be changed. (default: 2 hours) Refer to the Installation Manual for how to change the Override control time.
To cancel the Override control, touch the [Cancel] button.

· If the Hold function is enabled while the Setback temperature setting is being overridden, the Hold status will last until it is disabled, regardless of the Override control time setting. · In a system in which both a main and a sub remote controller are connected, if the setting for one of the controllers overrides the original temperature setting, and later the overriding temperature is again overridden by the setting for the other controller, the temperature setting will return to the first overriding temperature after the predetermined Override control time has elapsed. (not to the original overridden temperature)

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Basic operations

Fan speed and Air direction settings

ON

Button operation

Fan speed

Touch or to go through the fan speeds in the following order. Select the desired setting.

Auto

· The number of available fan speeds depends on the indoor unit model.

The actual fan speed will differ from the fan speed displayed on the LCD when one of the following conditions is met. · While “Standby” or “Defrost” is displayed · When the room temperature is higher than the set temperature during the heating mode · Immediately after the heating operation (during stand by for switching the operation mode) · During the Drying mode

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Basic operations

Button operation
Air direction

Touch or to go through the airflow directions in the following order. Select the desired setting.
Auto
Swing
Select “Swing” to automatically swing the airflow direction.
· The settable air directions depend on the indoor unit model.

The actual air direction will differ from the air direction displayed on the LCD when one of the following conditions is met. · While “Standby” or “Defrost” is displayed · When the room temperature is higher than the set temperature during the heating mode · Immediately after the heating operation (during stand by for switching the operation mode) icon When this icon appears, the air direction setting will automatically change in an hour and the icon will go off (depending on the indoor unit model).

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Louver setting
Button operation
Louver

Basic operations
ON

Touch or to turn on or off the louver swing.

Off

On

· The louver setting will not appear if the indoor unit does not feature the louver function.

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Basic operations
LOSSNAY setting
Button operation
LOSSNAY

Touch or to go through the fan speeds of the LOSSNAY unit in the following order. * Settable only when LOSSNAY unit is connected.

Off

Low

High

  • Indoor unit fan may operate even when the LOSSNAY unit is operated individually, depending on the models of the indoor unit and the LOSSNAY unit.

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Hold setting
Button operation
Hold

Basic operations
Touch the [Hold] button to enable/disable the Hold function. When the Hold function is enabled, the following scheduled operations are disabled, and a word “Hold” will appear next to the icon. · Schedule · ON/OFF timer · Auto-OFF timer · Auto return
To disable the Hold function, touch the [Cancel Hold] button.

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Basic operations
Humidity setting
Button operation
Humidity

Touch or to decrease or increase the humidity by 1%RH.
· The settable range is between 20% and 80% (RH). · The Humidity setting screen will appear only when a
humidifier is connected to AHC.

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Navigating through the Menu

Menu list

Menu items

Setting items and details

Reference page

Sets the current date and time.

35

Date and time

Selects the date and time format.

36

Sets the daylight saving time.

37

Schedule

Schedules the operation ON/OFF times, operation modes, and set temperatures for a week.

38

Sets the ON/OFF timer.

41

Timer

Sets the Auto-OFF timer.

43

Displays the display language being used.

45

Temperature unit setting (0.5ºC/1ºC/ºF)

45

Display format

Show/Hide room temperature setting

45

Backlight timeout setting

45

Sound and

Sets the volume of the buzzer that sounds when the screen is touched.

47

contrast

Sets the screen contrast.

47

Turns off the unit for the energy-save control.

48

Sets the operation mode to “Setback” for the energy-save control.

48

Offsets the set temperature for the energy-save control.

48

Sets the fan speed to “Low” for the energy-save control.

48

Energy saving Puts the unit into the Thermo-off state for the energy-save control.

48

Specifies the days and the time periods when the energy-save control will be deactivated.

51

Settings

Sets the brightness sensor condition to deactivate the energy-save control.

51

Sets the operation mode display setting. Sets the room temperature display setting.

54

LED Indicator

Selects the use or non-use of brightness sensor to switch LED indicator brightness.

54

Touch panel calibration

Sets the calibration settings for the touch panel.

57

Lock operations

Locks the ON/OFF, Operation mode, Set temperature, Hold, and Air direction settings.

58

Sensor

Sets the detection sensitivity level for the occupancy sensor.

59

threshold setting

Sets the brightness/darkness detection thresholds for the brightness sensor.

62

Set temp. range limit

Limits the settable temperature ranges for the Cool, Heat, and Auto modes.

64

Auto return

Operates the unit at the specified temperature after the specified period of time.

67

Screen cleaning

Temporarily makes the touch panel unresponsive to touch to allow for cleaning.

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Navigating through the Menu

Menu items Filter information Error information

Setting items and details
Displays and resets the filter signs on the indoor and LOSSNAY units. Displays the error status when an error occurs.

Reference page
71
73

About passwords
A password is required to access certain windows. Two types of passwords are used as follows. · Password that is used on the Menu (User) · Password that is used on the Menu (Service)
Example enter-password screen

  • Refer to section 2 “Service Menu” in Chapter 2 “Initial Setting” in the Installation Manual for details about passwords.

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Navigating through the Menu
Navigating through the Menu
Button operation
Accessing the Menu
Touch the [Menu] button.
The Menu screen will appear.

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31

Navigating through the Menu
Button operation
Navigating through the pages
Touch or to switch between the pages. To access the Menu (Service) screen, touch the [Service] tab. A maintenance access password will be required to access the Menu (Service) screen.

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Navigating through the Menu

Button operation
Item selection

Touch the desired item on the Menu screen.

When an attempt is made to access a passwordprotected screen, a [Login page] will appear. Enter a user password (default: 0000).
The settings screen for the selected item will appear.
Navigating through the screens · To return to the Menu screen: [Menu] button · To return to the previous screen: [Back] button

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33

Navigating through the Menu
Button operation
Exiting the Menu screen
Touch the [Home] button to exit the Menu screen and return to the Home screen.
If no buttons are touched for 10 minutes, the screen will automatically return to the Home screen. Any settings that have not been saved will be lost.

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Function settings

Date and time
Enter date and time
Button operation
1

Select [Date and time] from the Menu. Then, touch [Enter date and time] in the list.
Date and time setting is required before making the following settings. · Schedule · ON/OFF timer · Energy saving · Daylight saving time

2

Touch or to set the current month, date, year, and time.

Touch [Done] to save the settings.

Navigating through the screens · To return to the Menu screen: [Menu] button · To return to the previous screen: [Back] button

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35

Function settings
Date and time format
Button operation
1

Select [Date and time] from the Menu. Then, touch [Date and time format] in the list.

2

Touch the buttons to select date and time display formats.
Touch [Done] to save the settings.
Navigating through the screens · To return to the Menu screen: [Menu] button · To return to the previous screen: [Back] button

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Daylight saving time
Button operation
1

Function settings
Select [Date and time] from the Menu. Then, touch [Daylight saving time] in the list.

2

The default setting is “Disabled.” To activate the daylight saving time, touch the [Disabled] button to change it to [Enabled].

Set the following items with the

buttons.

· Month/Date

· Start time

· Forward to * Set the time when the clock is to be set forward to at the Start time above.

· Month/Date (2nd page)

· End time (2nd page)

· Backward to (2nd page) * Set the time when the clock is to be set backward to at the End time above.

Touch [Done] to save the settings.

Navigating through the screens · To return to the Menu screen: [Menu] button · To return to the previous screen: [Back] button

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37

Function settings

Schedule

1

Operation ON/OFF times, operation modes, and set temperatures for a week can be scheduled. Up to eight operation patterns can be scheduled for each day.

1

Select [Schedule] from the Menu.
The Schedule function will not work in the following cases: when the ON/OFF timer is enabled, during an error, during test run, when the clock is not set, when the ON/OFF operation, operation mode setting, set temperature setting, or timer execution is prohibited from the centralized controller, when the Hold function is enabled.

2

The current settings will appear.

Touch the day of the week button to see the

schedule settings for the day.

Up to eight operation patterns can be scheduled for each day. Touch to see patterns 4 through 8.

Touch the row of the pattern you want to edit.

3

The current settings for the selected day will appear.

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4

Function settings
Set the following items. · Time

  • The time is settable in 5-minute increments. * Touch and hold or to rapidly advance the
    numbers. · ON/OFF · Mode · Temperature
  • The settable operation modes and temperature ranges vary, depending on the indoor unit model.
    To continue setting schedules for other time periods, touch to access the settings screen.
    When done making the settings, touch [Done]. A confirmation screen will appear. Touch [OK] to save the settings.
    Navigating through the screens · To return to the Menu screen: [Menu] button · To return to the previous screen: [Back] button

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39

Function settings

1

To copy the schedule settings of a day to the schedule settings for another day of the week, touch [Copy].

2
40

Touch the day whose schedule settings are to be copied and the day(s) to which the copied schedule settings are to be pasted.
When done making the settings, touch [Done]. A confirmation screen will appear. Touch [OK] to save the settings.
Navigating through the screens · To return to the Menu screen: [Menu] button · To return to the previous screen: [Back] button
will appear on the Home screen when the schedule setting for the current day exists.
The icon will not appear while the ON/OFF timer is enabled or the timer execution is prohibited from the centralized controller. In these cases, scheduled events will not be executed. When the Hold function is enabled, scheduled events will not be executed, and ” Schedule” will change to ” Hold.”

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Function settings

Timer

1

ON/OFF timer

ON/OFF timer allows the user to set a timer to turn on or off the indoor unit at the specified times.

Button operation

1

Select [Timer] from the Menu. Then, touch [ON/OFF timer] in the list.

The ON/OFF timer will not work in the following cases: when ON/OFF timer is disabled, during an error, during test run, when the clock is not set, when the ON/OFF operation or timer execution is prohibited from the centralized controller, when the Hold function is enabled.

2

To activate the ON/OFF timer, touch the [Disabled] button to change it to [Enabled].
Specify the [ON]-time and [OFF]-time with the buttons.

  • The time is settable in 5-minute increments. * Touch and hold or to rapidly advance the
    numbers.
    To set the ON/OFF timer to repeat daily, set the [Repeat] setting to [Enabled].
    Touch [Done] to save the settings.
    Navigating through the screens · To return to the Menu screen: [Menu] button · To return to the previous screen: [Back] button

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41

Function settings

” Timer” will appear on the Home screen when the ON/OFF timer is enabled.
” Hold” will appear when the Hold function is enabled. The timer will not be executed when the Hold function is enabled or when the timer execution is prohibited from the centralized controller. ” Timer” will appear.

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Function settings

Auto-OFF timer

Auto-OFF timer allows the user to set a timer to turn off the indoor unit after the specified time has elapsed.

Button operation

1

Select [Timer] from the Menu. Then, touch [Auto-OFF timer] in the list.

The Auto-OFF timer will not work in the following cases: when Auto-OFF timer is disabled, during an error, during test run, when the ON/OFF operation or timer execution is prohibited from the centralized controller, when the Hold function is enabled.

2

To activate the Auto-OFF timer, touch the [Disabled] button to change it to [Enabled].

Specify the [Stop in]-time with the

buttons.

  • Specify the time to elapse before the indoor unit is automatically turned off. The settable range is 30 to 240 minutes in 10-minute increments.

  • Touch and hold or to rapidly advance the numbers.

Touch [Done] to save the settings.
Navigating through the screens · To return to the Menu screen: [Menu] button · To return to the previous screen: [Back] button

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43

Function settings

“Auto-OFF” will appear on the Home screen when the Auto-OFF timer is enabled.

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Function settings

Display format
Language Temperature unit Room temperature display Backlight timeout
Button operation
1

Touch [Settings] from the Menu. Then, touch [Display format] in the list.

2

Language The currently used display language will appear.

Temperature unit
Touch the button to select the temperature unit from ºF, ºC (0.5ºC increments), or 1ºC (1ºC increments).

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45

Function settings

Room temperature display Touch the button to select the desired room temperature display option to be used on the Home screen. · Show: Room temperature appears on the Home
screen. · Hide: Room temperature does not appear on the
Home screen.

  • The indoor humidity display will also be shown or hidden according to the Show/Hide setting above.
    Backlight timeout Touch the button to select the desired timeout of the backlight from 5, 10, 20, 30, and 60 seconds.
    Touch [Done] to save the settings.
    Navigating through the screens · To return to the Menu screen: [Menu] button · To return to the previous screen: [Back] button

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Function settings

Sound and contrast
Sound level Contrast
Button operation
1

Touch [Settings] from the Menu. Then, touch [Sound and contrast] in the list.

2

Sound level Set the volume of the buzzer that sounds when the screen is touched. · Level 0­3 (Level 0: No sound)
Contrast Set the display contrast between -10 and +10. The greater the value, the higher the contrast.
Touch [Done] to save the settings.
Navigating through the screens · To return to the Menu screen: [Menu] button · To return to the previous screen: [Back] button

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47

Function settings

Energy saving (Assist function)

The energy-save control assist function can be set to activate when vacancy is detected while the air conditioning units are operated. (The default setting for this function is set to deactivate.)

Selecting an energy-save control mode
Button operation

1

Touch [Settings] from the Menu. Then, touch [Energy saving] in the list.

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2

Function settings

Touch the [Mode] button to select one of the following energy-save control modes that reduces energy-consumption during vacancy. The default setting is “Non-use.”
· Non-use: Deactivates the energy-save control assist function.
· Thermo-off1: Puts the unit into the Thermo-off state.
· Set temperature offset
12: Offsets the set temperature.
· Fan speed down
3: Sets the fan speed to “Low.” · ON/OFF: Turns off the unit. · Operation mode3: Sets the operation mode to
“Setback.”
1 When using the energy-save function of other system controllers in combination with the energy-save control assist function of the Smart ME controller, do not select “Thermo-off” or “Set temperature offset.”
2 When the units are operated in the Fan mode or in the Setback mode, or when the set temperature setting is prohibited from the centralized controller, the set temperature will not be offset.
3 If the connected indoor unit does not support the fan speed adjustment function or the Setback mode, these items will not be displayed.
When the occupancy sensor detects occupancy during the energy-save control, the original operating status will be restored. However, when the operating status is changed by other controllers or by the scheduled or timercontrolled events, the current operating status will be retained even if the occupancy sensor detects occupancy.

· To use the energy-save control assist function in a system with both main and sub remote controllers, activate the function only on the remote controller whose coverage area is the largest.

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Function settings
3
50

Set the following items with the

buttons.

· Offset value (Effective only when “Set temperature offset” mode is selected)

  • Set the temperature value to be offset by from the set temperature during vacancy. The settable value range is between 2ºF (1ºC) and 8ºF (4ºC).

· Auto-away time (Effective when any mode is selected)

  • When no human movement is detected for the period of the time specified here, the energy-save control will be performed. The settable time range is between 0:00 and 24:00.

· Detection level (Effective when any mode is selected)

  • Adjust the detection sensitivity level according to the surrounding environment. (Recommended setting for ordinary use: Level 0) The greater the value, the higher the sensitivity. The settable levels are -2, -1, 0, 1, and 2.

  • A higher detection level can lead to false detection because the sensor tends to detect more noise.

As option settings, the energy-save control assist function can be set to deactivate during vacancy at the specified time periods on the specified days or when the brightness sensor detects “Light” or “Dark.” (See page 51 for details.)
When done making the settings and if no settings need to be made for the option settings, touch [Done] to save the settings.
To make option settings, touch [Option].

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Function settings

Invalid item setting (option settings)
Button operation

1

The energy-save control assist function can be set to deactivate during vacancy at the specified

time periods on the specified days or when the

brightness sensor detects “Light” or “Dark.”

To specify time periods and days, touch [Day and time] from the list. (See step 2 below.)

To set the detection conditions for the brightness sensor, touch [With Brightness sensor] from the list. (See step 3 below.)

These two different types of settings can be made in combination. The energy- save control assist function will be deactivated when one of the conditions for the above items is met.

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51

Function settings
2 3
52

Day and time Specify the days and the time periods when the energy-save control assist function will be deactivated. The settings of a day can be copied to the settings for another day of the week. The setting details are the same as those for the schedule settings. Refer to page 38 for details.

  • To deactivate the function for an entire day, set the setting to “12:00AM12:00AM.”
    With Brightness sensor To use the brightness sensor for the energy-save control, touch the [Disabled] button to change it to [Enabled].
    Touch the [Occupancy sensor invalid condition] button to select [Light] or [Dark]. · Light: When the brightness sensor detects “Light”
    during vacancy, the energy-save control assist function will be deactivated. · Dark: When the brightness sensor detects “Dark” during vacancy, the energy- save control assist function will be deactivated.
    Touch [Done] to save the settings.
    Navigating through the screens · To return to the Menu screen: [Menu] button · To return to the previous screen: [Back] button

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Function settings

Example of the energy-save control assist function settings

Setting item Invalid item setting Day and time (option settings) With Brightness sensor
Energy-save control mode Auto-away time

Setting example 1 7:00AM 5:00PM
2 Light 3 Set temperature offset
(Offset value: 4ºF) 4 0:10 (10 minutes)

1 Time

7:00AM

5:00PM

2

Light

Dark

(1 + 2)

Occupied Vacant

3 Set temp. 70ºF

(Heat)

66ºF

4 Auto-away time (10 min.)

Auto-away time count restarts.

Auto-away time count restarts.

Normal control

Energysave control

Normal control

Energysave control

Period during which energy-save control can not be performed even when vacancy is detected
Period during which energy-save control can be performed when vacancy is detected
Because the settings for the items under [Invalid item setting] are made, the energy-save control will not be performed at these times even when the occupancy sensor detects vacancy.

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53

Function settings
LED Indicator
Button operation
1

Touch [Settings] from the Menu. Then, touch [LED Indicator] in the list.

2

Touch [LED Indicator setting] in the list.

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3

Function settings
The default setting for [Basic display mode] is “Mode.” Touch the button to select the Basic display mode from “Mode,” “Room temp.,” or “Non-use.”
Setting items common to “Mode” and “Room temp.” · Brightness

  • Select “High” or “Low.” This setting is effective only when the “With
    Brightness Sensor” setting (explained on the next page) is disabled. · Color during energy saving (2nd page)
    Select the desired color to be used during energysave control. · Occupancy detection indicator (2nd page) * Select “Enabled” or “Disabled.” When “Enabled” is selected, the LED indicator blinks once every 30 seconds when the occupancy sensor detects occupancy.
    Setting item specific to “Mode” · Mode color (3rd and 4th pages)
  • Select the desired LED color for each operation mode.

Setting item specific to “Room temp.” · Room temp. range and LED color (3rd page)

  • Set the desired temperature ranges and the LED colors for low, medium, and high temperature range groups.
    Touch [Done] to save the settings.
    Navigating through the screens · To return to the Menu screen: [Menu] button · To return to the previous screen: [Back] button

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55

Function settings
4
5

To select the brightness level of the LED indicator to be used when the brightness sensor detects “Light” or “Dark,” touch the [With Brightness sensor] in the list.
To use the brightness sensor for switching the brightness of the LED indicator, touch the [Disabled] button to change it to [Enabled].
Set the following items. · Detection: Light

  • Select the brightness level of the LED indicator to be used when the brightness sensor detects “Light.” Select “Brighten,” “Darken,” or “OFF”
    · Detection: Dark * Select the brightness level of the LED indicator to be used when the brightness sensor detects “Dark.” Select “Brighten,” “Darken,” or “OFF”
    Touch [Done] to save the settings.
    Navigating through the screens · To return to the Menu screen: [Menu] button · To return to the previous screen: [Back] button

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Function settings

Touch panel calibration
Button operation
1

Touch [Settings] from the Menu. Then, touch [Touch panel calibration] in the list.
A confirmation screen will appear. Touch [OK].

2

Touch the black dots in the order they appear, starting from the top left corner.

After all nine squares are touched, the screen will

return to the previous screen.

· If each square is not touched within one minute after the last square is touched, calibration will be canceled and the screen will return to the previous screen.
· To calibrate the screen properly, use a pointy, but not sharp object to touch the black dots. * Sharp objects may scratch the touch panel.

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57

Function settings
Lock operations
Button operation
1
2

1
Touch [Settings] from the Menu. Then, touch [Lock operations] in the list.
Login screen will appear. Enter the password and touch [Login].
To lock the following operation items, touch the [Unlocked] button to change it to [Locked]. · ON/OFF · Operation mode · Set temperature · Air direction · Hold (2nd page) Touch [Done] to save the settings.
Navigating through the screens · To return to the Menu screen: [Menu] button · To return to the previous screen: [Back] button
will appear on the Home screen when the operation is locked.

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Function settings

Sensor threshold setting

Occupancy sensor
Button operation
1

Touch [Settings] from the Menu. Then, touch [Sensor threshold setting] in the list.

2

To set the detection sensitivity level of the occupancy sensor, touch [Occupancy sensor] in

the list.

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59

Function settings
3

Set the detection sensitivity level with the buttons. · Level: -2, -1, 0 (default), 1, 2 * The detection level setting made here will also be
reflected on the detection level setting on the “Energy saving” screen.
The larger the value, the more sensitive the sensor will be to light. Use the default conditions under normal conditions. If the sensor is oversensitive or undersensitive, adjust the detection sensitivity level.
Use the following tests to adjust the detection sensitivity to the appropriate level: A vacancy test (Test 1) and an occupancy test (Test 2).
A higher detection sensitivity level can lead to false detection because the sensor tends to detect more noise.
Touch [Done] to save the settings.
Navigating through the screens · To return to the Menu screen: [Menu] button · To return to the previous screen: [Back] button

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Function settings

Performing sensor detection sensitivity tests

Test 1: Vacancy test

Test 2: Occupancy test

To start Test 1, touch [Test 1]. Ten seconds later, the vacancy detection test will automatically begin. This test will test for the presence of noise that leads to false detection. Leave the room within 10 seconds after touching the button, and leave the room unoccupied for 1 minute until the test is completed. When the test is complete, the result will be displayed in color on the LED indicator.
· Blue: Normal (The sensor correctly detected vacancy without being interfered with by noise.)
· Red: Error (The sensor falsely detected occupancy due to noise.)

To start Test 2, touch [Test 2]. When movements are detected, the LED indicator will light up in blue. Walk away from the remote controller, and walk around in areas where you want the sensor to detect motions to see if it will respond correctly. If the sensor does not respond, raise the detection sensitivity level and try again.

If the sensor failed to correctly detect vacancy, lower the detection sensitivity level and try again.

The sensor detection area is as follows: 110° to either side, 32 feet (10 meters). Some conditions will render the sensor susceptible to false detection. Refer to “How To Install” in chapter 1 in the Installation Manual.

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61

Function settings
Brightness sensor
Button operation
1

Touch [Settings] from the Menu. Then, touch [Sensor threshold setting] in the list.

2

To set the threshold value of the brightness sensor, touch [Brightness sensor] in the list.

3
62

The lux values to be used to determine the “Dark” state and “Light” state can be set. These statuses are used as parameters for energy-save control and LED indicator control. Set the lux values to an appropriate values suitable for a given environment.
Try changing the brightness in a given space (e.g., by drawing curtains) while adjusting the lux levels.
Set the values and touch [Done]. Navigating through the screens · To return to the Menu screen: [Menu] button · To return to the previous screen: [Back] button

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Function settings

Performing a test
When [Test] is touched, the current lux level in a given space will appear next to “Monitor” on the screen. The LED indicator will indicate the brightness status of a given space in colors.

Light Dark

Red Green Blue

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63

Function settings

Set temp. range limit
Button operation
1

1
Touch [Settings] from the Menu. Then, touch [Set temp. range limit] in the list.

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2

Function settings

The default setting is “Disabled.” To limit the settable temperature ranges for the Auto, Cool (Drying), and Heat modes, touch the [Disabled] button to change it to [Enabled].

Set the upper and lower limit temperatures for

the following operation modes in the table below

with the

buttons. (The temperatures will

decrease or increase by 1ºF or 1ºC increments.)

· If the connected indoor unit does not feature the AUTO mode, the items related to the Auto mode will not be
displayed.

Settable upper and lower limit temperatures

Operation mode Auto (Single)

Lower limit
67°F­83°F (19°C­28°C)

Upper limit
83°F­67°F (28°C­19°C)

Cool/Drying, Auto (Dual)_Cool

67°F­95°F 95°F­67°F (19°C­35°C) (35°C­19°C)

Heat, Auto (Dual)_Heat

40°F­83°F 83°F­40°F (5°C­28°C) (28°C­5°C)

  • “Auto (single set point)” is referred to as “Auto (Single)” in the table. “Auto (dual set points)” is referred to as “Auto (Dual)” in the table.

  • The settable operation modes and temperature ranges vary, depending on the indoor unit model.

  • The cooling and heating temperature ranges can be set under the following conditions. – The difference between the cooling and heating upper limit temperatures is equal or greater than the minimum temperature difference that varies with the indoor unit model. – Thee difference between the cooling and heating lower limit temperatures is equal or greater than the minimum temperature difference that varies with the indoor unit model.

  • The settable temperature range for the Setback mode cannot be limited.

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Function settings

When done making the settings, touch [Done] to save the settings.
Navigating through the screens · To return to the Menu screen: [Menu] button · To return to the previous screen: [Back] button
“Temp. range” will appear on the Home screen when the temperature range is limited.

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Function settings

Auto return

1

The Auto-return function allows the user to operate the unit at the specified temperature after the specified period of time.

Button operation

1

Touch [Settings] from the Menu. Then, touch [Auto return] in the list.

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Function settings

2

The default setting is “Disabled.” To activate the Auto-return function, touch the [Disabled] button to change it to [Enabled].

Set the following items with the

buttons.

The temperatures will decrease or increase by 1ºF

or 1ºC increments.

· Cool * Specify the time to elapse before the set temperature automatically changes to the set temperature specified below during cooling operation. The settable time range is 10 to 120 minutes in 10-minute increments.

  • Specify the set temperature to be used after the period of time specified above. The settable temperature range is 67ºF to 95ºF (19ºC to 35ºC) (depending on the indoor unit model).

  • “Cool” includes the “Drying” and “Auto_Cool” modes.

· Heat * Specify the time to elapse before the set temperature automatically changes to the set temperature specified below during heating operation. The settable time range is 10 to 120 minutes in 10-minute increments.

  • Specify the set temperature to be used after the period of time specified above. The settable temperature range is 40ºF to 83ºF (5ºC to 28ºC) (depending on the indoor unit model).

  • “Heat” includes the “Auto_Heat” modes.

  • The Auto-return function cannot be used for the Setback mode.

When done making the settings, touch [Done] to save the settings.

Navigating through the screens · To return to the Menu screen: [Menu] button · To return to the previous screen: [Back] button

The Auto-return function settings will not be effective when the set temperature range is restricted and when the set temperature setting or timer execution is prohibited from the centralized controller.

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Function settings

Example: Lower the set temperature to 75ºF (24ºC). Sixty minutes later, the set temperature will automatically change to 83ºF (28ºC). 60 minutes later

The set temperature is manually changed from 83ºF (28ºC) to 75ºF (24ºC).

Sixty minutes later, the set temperature automatically changes to 83ºF (28ºC).

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69

Maintenance
Screen cleaning
Button operation
1

Touch [Screen cleaning] from the Menu.
A confirmation screen will appear. Touch [OK].

2

Clean the touch panel within 30 seconds. The touch panel is deactivated for 30 seconds and then returns to the Menu screen.

  • The buzzer will sound while the touch panel is being touched.

Wipe with a soft dry cloth, a cloth soaked in water with mild detergent, or a cloth dampened with ethanol. Do not use acidic, alkaline, or organic solvents.

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Filter information

Maintenance
“Filter” will appear on the Home screen when it is time to clean the filters. Wash, clean, or replace the filters when this sign appears. Refer to the indoor unit Instructions Manual for how to clean the filters.

Button operation
1

Touch [Filter information] from the Menu.

2

Touch [Reset] to reset the filter sign.

A confirmation screen will appear.

Touch [OK].

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Maintenance
3

A message indicating that the filter information has been reset will appear.
Navigating through the screens · To return to the Menu screen: [Menu] button · To return to the previous screen: [Back] button
When this screen appears, the system is centrally controlled and the filter sign cannot be reset.

If two or more indoor units are connected, filter cleaning timing for each unit may be different, depending on the filter type.
“Filter” will appear when the filter on one of the units is due for cleaning. When the filter sign is reset, the cumulative operation time of all units will be reset.
“Filter” is scheduled to appear after a certain duration of operation, based on the premise that the indoor units are installed in a space with ordinary air quality. Depending on the air quality, the filter may require more frequent cleaning.
The cumulative time at which filter needs cleaning depends on the model.

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Troubleshooting

Error information

When an error occurs, the [Error information] screen will appear. Check the error status, stop the operation, and consult your dealer.

Button operation

1

Error code, error unit, and address will appear. Dealer’s phone number will appear if the

information has been registered in the settings

screen under the Menu (Service).

  • The LED indicator will blink at 1-second intervals while the error is occurring.

Touch [Reset] to reset the error that is occurring. A confirmation screen will appear. Touch [OK].

  • When an error occurs with the AHC, [Home] button will appear. The Home screen will be accessible without the need for an error reset.
    Errors cannot be reset when the ON/OFF operation is prohibited from the centralized controller.

2

A message indicating that the error information has been reset will appear.

Navigating through the screens · To return to the Menu screen: [Menu] button · To return to the previous screen: [Back] button

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Troubleshooting

If a type of error occurs that allows the units to continue their operation, only an error code will appear in the schedule display area (enclosed in dotted line) on the Home screen. When this type of error occurs, the LED indicator will not blink. To reset the error, press the [ON/OFF] button.

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Specifications

Controller specifications

Power Source

Operating conditions

Temperature Humidity

Weight

External dimensions (W x H x D)

Specifications

17­32 VDC *1 (for connection to M-NET only)

Receives power from outdoor units via the M-NET transmission cable. The power consumption coefficient*2 of the Smart ME Controller is “0.5”.

Operating temperature range 0ºC ­ +40ºC (+32ºF ­ +104ºF)

Storage temperature range -20ºC ­ +60ºC (-4ºF ­ +140ºF)

20%­90% RH (Non-condensing)

0.3 kg (11/16 lbs)

140 x 120 (123) x 25 (28.8) mm 5-17/32 x 4-3/4 (4-27/32) x 1 (1-5/32) in

  • The numbers in the parenthesis indicate the dimensions including the protruding parts.

1 Not for use with a generic DC power supply device. 2 “Power consumption coefficient” is a coefficient to calculate the relative power consumption of the devices that receive
power through the M-NET transmission cable. Refer to section 4 “System diagram” in Chapter 1 in the Installation Manual.

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Specifications
List of functions that can/cannot be used in combination

Schedule ON/OFF timer Auto-OFF timer
Auto return Set temp. range limit
Lock operations Hold
Centrally controlled Energy saving (Assist function)

Schedule ON/OFF timer Auto-OFF timer
Auto return Set temp. range limit
Lock operations

1 1

2 2

1 2

1 2

1 2

1 2

1

Hold

1 1 1 1

Centrally controlled

2 2 2 2

2

Energy saving (Assist function)

1

2

: The functions can be used in combination.

1 : The “Schedule” setting is not effective because “ON/OFF timer” has the higher priority. 2 : The “Auto return” function cannot be used because the “Set temp. range limit” setting has the higher
priority.

1 : The “Auto return” function will not be executed when the units are operated in the “Set temperature offset” mode.
2 : The units cannot be operated in the energy-saving mode if the operation is prohibited from the centralized controller.

1 : No schedules or timer events will be executed. 2 : The events that are prohibited from the centralized controller will not be executed.

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Note: 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 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 equipment and receiver. – Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. – Consult the dealer or an experienced radio/TV technician for help.

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This product is designed and intended for use in the residential, commercial and light-industrial environment.
The product at hand is based on the following EU regulations: · Electromagnetic Compatibility Directive 2004/108/EC · Restriction of Hazardous Substances 2011/65/EU

HEAD OFFICE: TOKYO BLDG. , 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN

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WT06685X01

References

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

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