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Chapter 1. Installation

This installation manual describes how to install the Smart ME Controller for use with Mitsubishi 
Building Air Conditioning System, direct expansion type CITY MULTI air conditioner indoor units (“-A” 
type and later). 
Please be sure to read this installation manual and Instruction Book that are supplied with the Remote 
Controller before proceeding with the installation. Failure to follow the instructions may result in 
equipment damage.
For information on how to wire and install the air conditioning units, refer to the Air Conditioner 
Installation Manual. 
After the installation, hand over this manual to users.
Smart ME Controller is a type of ME Remote Controllers, sometimes simply referred to as ME Remote 
Controller.

• Read the following safety precautions prior to installation.
• Observe these precautions carefully to ensure safety.

• 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.

 

WARNING

1

Safety Precautions

 WARNING

Indicates a risk of death or serious injury.

 CAUTION

Indicates a risk of serious injury or structural damage.

General precautions

All electric work must be performed by qualified personnel.

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 switches or touch 
other electrical parts with wet hands.

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.

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.

To reduce the risk of injury, keep children away while 
installing, inspecting, or repairing the controller.

CITY MULTI Control System

Smart ME Controller     PAR-U01MEDU

Installation Manual

WT06684X01

GB

For distribution to dealers and contractors

WT06684X01_GB.fm  Page 1  Thursday, March 7, 2013  10:23 AM

Summary of Contents for PAR-U01MEDU Smart ME

Page 1: ...ous injury or structural damage General precautions All electric work must be performed by qualified personnel 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...

Page 2: ... Controller must be installed by qualified personnel according to the instructions detailed in the Installation Manual Improper installation may result in electric shock or fire When attaching the cover and the top casing to the bottom casing push it until it they click into place If they are not properly locked into place they may fall causing personal injury controller damage or malfunctions To ...

Page 3: ...t remove the protective film or the circuit board from the casing To avoid damage to the controller do not overtighten the screws Use a flat head screwdriver with a blade width of 4 5 5 mm 5 32 7 32 in The use of a screwdriver with a narrower or wider blade tip may damage the controller casing To prevent damage to the controller casing do not force the driver to turn with its tip inserted in the s...

Page 4: ...Locknut and bushing As needed Cable cover As needed Required for routing remote controller cable along a wall Putty As needed Molly anchor As needed Remote controller cable 0 3 mm AWG 22 2 core sheathed cable As needed If the remote controller cable exceeds 10 m 32 ft use an electric wire that meets the following specification CVVS 1 25 mm2 standard AWG 16 or equivalent CPEVS ø1 2 mm standard AWG ...

Page 5: ...t the main and sub remote controllers in the same way as described in 1 above Be sure to set the main and sub remote controller addresses The sub remote controller address should be set to a number that equals the main indoor unit address plus 150 4 System diagram Outdoor unit Transmission booster Indoor unit Smart ME controller 32 25 1 1 0 5 CAUTION Remote controllers cannot be wired together Onl...

Page 6: ...res are routed around the temperature sensor on the controller or where no obstacles block the air inlet otherwise the sensor cannot measure accurate room temperature and humidity After the controller has been exposed to high humidity above 80 RH for 60 hours the humidity detection value will be offset by 3 RH When the ambient humidity drops below 80 RH the offset will be gradually cancelled Do no...

Page 7: ...tions Keep the lens scratch free Do not place adhesive tape or labels over the lens Use a soft cloth to clean the lens Brightness sensor Horizontal direction Vertical direction 44 Remote controller Wall Figure 3 44 22 22 Remote controller Floor Wall Figure 4 Do not install the controller in a place where the difference between the remote controller surface temperature and the actual room temperatu...

Page 8: ...ntroller cable along the wall 2 Seal the cable access hole with putty Installation using a switch box Seal the cable access hole at the connection of switch box and conduit tube with putty 3 Prepare the bottom case of the remote controller Take the following procedure only when performing direct wall installation and running the remote controller cable along the wall 30 1 3 16 30 1 3 16 30 1 3 16 ...

Page 9: ... molly anchor etc 5 Install the top case on the bottom case Two mounting tabs are at the top of the top case Hook those two tabs onto the bottom case and click the top case into place Check that the case is securely installed and not lifted The controller is shipped with the front cover mounted to the top case Remove the front cover from the top case before installing the top case on the wall Refe...

Page 10: ...lock and insert the cable into the groove To reduce the risk of electric shock shorting or malfunctions keep wire pieces and sheath shavings out of the terminal block Do not use solderless terminals to connect cables to the terminal block Solderless terminals may come in contact with the circuit board and cause malfunctions or damage the controller cover Hold the cables in place with clamps to pre...

Page 11: ...ote controller 101 to 150 Address that equals the lowest address of the group plus 100 Sub remote controller 151 to 200 Address that equals the lowest address of the group plus 150 Rotary switch setting Address 01 to 99 101 199 with the 100 s digit automatically set to 1 00 200 01 2 3 4 5 6 7 8 9 01 2 3 4 5 6 7 8 9 Rotary switches 10 s digit Above 1 s digit Below Ex Address 108 To set the address ...

Page 12: ...r in the direction of the arrow in the figure to remove the front cover 2 Uninstalling the top case Insert a flat tip screwdriver with a blade width of 5 5 mm 7 32 in or less into either of the two latches at the front of the remote controller as shown in the figure at right Push the tip of the flat head screwdriver in the direction of the arrow in the figure to remove the top case Putty Lightly p...

Page 13: ...he wall temperature and the actual room temperature The back side of the wall is directly exposed to the outside air Refer to the following manual for temperature sensor setting indoor unit Installation Manual for City Multi At the time of factory shipment protective sheet is on the operation interface of the front cover Peel off the protective sheet on the operation interface prior to use 6 Impor...

Page 14: ...tive manuals Turn on the controller and the units This manual is intended for the first startup after the unit has been shipped from the factory If the setting has been changed even once the popup window or setting screens explained below may not appear 1 Initial Settings a The Start up screen will appear Case 1 Basic setup including the setup performed at the time of system controller connection ...

Page 15: ...AY Use this function to interlock the operation of indoor units and LOSSNAY units 1 To register LOSSNAY units Select the indoor unit address in the Add 1 section Select the interlocked LOSSNAY address in the Add 2 section Press the Set button to save the setting 2 To search for an interlocked setting Press the Conf button to display in the left column the addresses of the units that are interlocke...

Page 16: ... Cool Heat display Use to show or hide the operation mode signs Cool Heat on the HOME screen while the units are operated in the AUTO mode or the SETBACK mode Select between Show Hide Auto Show Setback Show e Override time Use to enable or disable the Override function and to set the override time when the function is enabled Use to enable or disable the function that restores the original set tem...

Page 17: ...tting Use to make the settings for the indoor units from the controller Refer to the indoor unit installation manual for the detailed explanation of the setting items To be explained later l LED color adjustment Adjusts the LED indicator color 3 Sets the R Red G Green B Blue color ratio Blue R G B 0 0 100 L Blue R G B 0 40 60 Purple R G B 40 0 100 Red R G B 100 0 0 Pink R G B 80 20 40 Orange R G B...

Page 18: ...t g Humidity sensor offset The temperature in the Current room temp field indicates the temperature measured by the built in temperature sensor on the remote controller When the offset value is changed it may take up to 1 minute until the change is reflected on temperature display on the Home screen The humidity in the Current humidity field indicates the humidity measured by the built in humidity...

Page 19: ...ndoor units will acquire the current settings and the results will appear in the Function setting field 4Select the number that corresponds to the desired function to be configured in the Function setting field Refer to the manuals that came with the indoor unit 5Touch the Set button to save the setting to the indoor unit Successful completion Completed will appear Error Request denied will appear...

Page 20: ... 20 m Reset RC n AHC port name 2 Error Menu a Error history b Self check max 20 characters max 16 ...

Page 21: ... address of another indoor unit the liquid pipe temperature of the selected unit can be monitored d The test run will automatically end in two hours When AHC is controlled from the controller To monitor the operating status of AHC touch the button on the Test run screen and access the General equipment screen To set the humidity setting for the humidifier when one is connected to the AHC touch the...

Page 22: ... 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 caus...

Page 23: ... 23 ...

Page 24: ...phone number on this manual before handing it to the customer 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 ...

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