GB WT06684X03
CITY MULTI Control System
Smart ME Controller PAR-U01MEDU
Installation Manual |
For distribution to dealers and contractors |
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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. 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.
1 Safety Precautions 
•Read the following safety precautions prior to installation.
•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.
All electric work must be performed by qualified personnel.
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 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.
– 1 –
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 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.
Do not directly stare at the LED light, as this may damage your eyes.
Precautions during installation
WARNING
Do not install the controller where there is a risk of leaking flammable gas. If flammable gas accumulates around the controller, it may ignite and cause a fire or explosion.
Properly dispose of the packing materials. Plastic bags pose suffocation hazard to children.
Take appropriate safety measures against earthquakes to prevent the controller from causing injury.
To prevent injury, install the controller on a flat surface strong enough to support its weight.
CAUTION
To reduce the risk of shorting, current leakage, electric shock, malfunctions, smoke, or fire, do not install the controller in a place exposed to water or in a condensing environment.
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.
Precautions during wiring
WARNING
To reduce the risk of damage to the controller, malfunctions, smoke, or fire, do not connect the power cable to the signal terminal block.
Properly secure the cables in place and provide adequate slack in the cables so as not to stress the terminals. Improperly connected cables may break, overheat, and cause smoke or fire.
To reduce the risk of injury or electric shock, switch off the main power before performing electrical work.
All electric work must be performed by a qualified electrician according to the local regulations, standards, and the instructions detailed in the Installation Manual. Capacity shortage to the power supply circuit or improper installation may result in malfunction, electric shock, smoke, or fire.
To reduce the risk of current leakage, overheating, smoke, or fire, use properly rated cables with adequate current carrying capacity.
CAUTION
To reduce the risk of electric shock, shorting, or malfunctions, keep wire pieces and sheath shavings out of the terminal block.
To reduce the risk of shorting, current leakage, electric shock, or malfunctions, keep the cables out of contact with controller edges.
To reduce the risk of electric shock, malfunctions, or fire, seal the gap between the cables and cable access holes with putty.
– 2 –
Precautions for moving or repairing the controller
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.
Take appropriate measures against electrical noise interference when installing the air conditioners in hospitals or facilities with radio communication capabilities. Inverter, high-frequency medical, or wireless communication equipment as well as power generators may cause the air conditioning system to malfunction. Air conditioning system may also adversely affect the operation of these types of equipment by creating electrical noise.
To avoid malfunctions, do not bundle power cables and signal cables together, or place them in the same metallic conduit.
To prevent malfunctions, do not 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 slot.
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.
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.
To avoid damage to the controller, do not make holes on the controller cover.
To avoid deformation and malfunction, do not install the remote controller in direct sunlight or where the ambient temperature may exceed 40ºC (104ºF) or drop below 0ºC (32ºF).
Do not install the controller on the control panel door. Vibrations or shocks to the controller may damage the controller or cause the controller to fall.
Hold the cables in place with clamps to prevent undue force from being applied to the terminal block and causing cable breakage.
To prevent cable breakage and malfunctions, do not hang the top controller casing hang by the cable.
– 3 –
2 |
Component names and supplied parts |
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The following parts are included in the box. |
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Parts name |
Qty. |
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Remote controller (front cover) *1 |
1 |
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Remote controller (top case) *1 |
1 |
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Remote controller (bottom case) |
1 |
Front cover |
Top case |
Bottom case |
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Roundhead cross slot screws M4×30 *2 |
4 |
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Wood screw 4.1×16 *2 |
4 |
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(for direct wall installation) |
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Installation Manual (this manual) |
1 |
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Instruction book |
1 |
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*1 The front cover is already installed on the top case at factory shipment.
*2 ISO metric screw thread
*3 Remote controller cable is not included.
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3 |
Field-supplied parts/Required tools |
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(1) Field-supplied parts |
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Parts name |
Qty. |
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Notes |
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Double switch box |
1 |
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Thin metal conduit |
As needed |
Not required for direct wall installation |
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Locknut and bushing |
As needed |
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Cable cover |
As needed |
Required for routing remote controller cable along a wall |
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Putty |
As needed |
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Molly anchor |
As needed |
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Remote controller cable |
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If the remote controller cable exceeds 10 m (32 ft), use an |
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electric wire that meets the following specification. |
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(0.3 mm² (AWG 22) 2-core |
As needed |
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CVVS: 1.25 mm2 (standard AWG 16) or equivalent |
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sheathed cable) |
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CPEVS: ø1.2 mm (standard AWG 16) or equivalent |
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(2)Required tools
•Flat-tip screwdriver (Width: 4-5.5 mm (5/32-7/32 in))
•Knife or nipper
•Miscellaneous tools
– 4 –
4 System diagram
Group 01 |
Group 02 |
Group 03 |
Outdoor unit
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Indoor unit |
Indoor unit |
Indoor unit |
Indoor unit |
LOSSNAY unit |
051 |
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001 |
002 |
003 |
004 |
005 |
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TB7 |
TB3 |
TB5 |
TB5 |
TB5 |
TB5 |
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101 |
102 |
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104 |
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Smart ME |
Smart ME |
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Smart ME |
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Controller *1 |
Controller |
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Controller |
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Outdoor unit |
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Group 04 |
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Advanced HVAC |
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Indoor unit |
Indoor unit |
Indoor unit |
Indoor unit |
CONTROLLER (AHC) |
056 |
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009 |
008 |
007 |
006 |
201 |
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TB7 |
TB3 |
TB5 |
TB5 |
TB5 |
TB5 |
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107 |
157 |
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000 |
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Smart ME |
Smart ME |
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Centralized |
Power supply |
Controller |
Controller |
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controller |
unit |
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*1 The power consumption coefticient of the Smart ME Controller is “0.5” and that of a ME Remote Controller (PAR-F27MEA-US) is “0.25”.
If the number of Smart ME Controllers is high and the total power supply they require exceeds the outdoor unit's ability to supply power, a Transmission booster (PAC-SF46EPA) will be required.
Outdoor unit |
Transmission booster |
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Indoor unit |
Smart ME Controller |
32 |
25 |
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1 (*1) |
0.5 |
*1: "7" for the P200 and P250 models
(1)Wiring from the remote controller
•Connect to TB5 (terminal block for indoor-outdoor transmission cable) on any indoor unit in same M-NET system.
•The terminal block has no polarity. Connect to the terminals M1 and M2.
(2)Operating in a group (Groups 01, 02, 03, and 04)
•Assign the lowest address to the main indoor unit in the group.
The remote controller address should be set to a number that equals the main indoor unit address plus 100.
(3)Up to two remote controllers (main and sub) can be connected to an indoor unit or a group of indoor units.
•Connect 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.
-Remote controllers cannot be wired together. Only one cable can be connected to the remote controller terminal
CAUTION block.
-The ME remote controller and MA remote controller cannot be connected in the same group.
Main |
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Sub |
remote |
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remote |
controller |
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controller |
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– 5 –
5 How To Install
This remote controller is for the wall installation. It can be installed either in the switch box or directly on the wall. When performing direct wall installation, cables can be thread through either back or top of the remote controller.
(1) Selecting an installation site
Install the remote controller (switch box) on the site where the following conditions are met.
(a)A flat surface
(b)A place where the remote controller can measure the accurate room temperature and humidity Sensors to monitor the room temperature are on the indoor unit and on the remote controller. When the room temperature is monitored with the sensor on the remote controller, the main remote controller monitors the room temperature. When using the sensor on the remote controller, follow the instructions below.
•To monitor the accurate room temperature and humidity, install the remote controller away from direct sunlight, heat sources, and the supply air outlet of the air conditioner.
•Install the remote controller in a location that allows the sensor to measure the representative room temperature and humidity.
•Install the remote controller where no wires 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 not install the controller where it is exposed to high concentration of acid, alkaline, or volatile organic compounds.
•If exposed to cigarette smoke for a long time, the humidity detection value will be offset.
(c)Install the remote controller where occupancy and brightness can be properly detected. The remote controller has an occupancy sensor and a brightness sensor.
Each sensor has a sensor-detection zone.
•Install the remote controller where the coverage area covers the appropriate area in the room. The maximum distance the sensor can detect occupancy is approximately 10 m (32 ft).
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Occupancy sensor |
Horizontal direction |
Vertical direction |
Wall
Remote 
controller
110°
10 |
m |
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Wall |
11° |
Remote |
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controller |
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31° |
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10 m |
20° |
Floor |
Figure 1 |
Figure 2 |
: Detection area
*As an inherent characteristic of the occupancy sensor, it is more sensitive to movements across the area indicated by ■ than to movements straight toward the sensor.
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Occupancy sensor detects occupancy based on the temperature difference between the occupant and its surroundings.
To be precise, to enhance the sensitivity of the sensor to occupant movements, the occupancy sensor is designed to detect the changes in the amount of infrared light emitted from an object in the detection zone, including human bodies.
The occupancy sensor will not detect occupancy if no movements exist.
The sensor also becomes less sensitive to occupancy when the temperature difference between the occupant and its surroundings is small.
• Select the installation location carefully to avoid false detection. Factors that contribute to false detection by the occupancy sensor
•Direct sunlight to the remote controller
•Supply air directed straight toward the remote controller
•Fireplace in the detection zone
•Portable heater (e.g., oscillating electric heater) in the detection zone
•Excessive vibrations or large impact inflicted on the remote controller
•Strong electrical noise
•Movements of small animals, such as cats and dogs
Brightness sensor
Horizontal direction |
Vertical direction |
Wall |
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Remote |
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controller |
22° |
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Wall Remote |
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44° |
controller |
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44° |
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22° |
Floor |
Figure 3 |
Figure 4 |
Handling precautions
•Keep the lens scratch-free.
•Do not place adhesive tape or labels over the lens.
•Use a soft cloth to clean the lens.
Important
Do not install the controller in a place where the difference between the remote controller surface temperature and the actual room temperature will be great.
If the temperature difference is too high, room temperature may not be adequately controlled.
To avoid deformation and malfunction, do not install the remote controller in direct sunlight, where the ambient temperature may rise above 40ºC (104°F) or drop below 0ºC (32°F), or where the relative humidity may rise above 90% or drops below 20%.
To reduce the risk of malfunctions, do not install the controller in a place where water or oil may come into contact with the controller, or in a condensing or corrosive environments.
Do not install the remote controller directly onto electrically conductive objects such as metal plate that has not been painted.
To use the Energy Saving 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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(2) Installation space
Leave a space around the remote controller as shown in the figure below, regardless of whether the controller is installed in the switch box or directly on the wall. Removing the remote controller will not be easy with insufficient space.
Also, leave an operating space in front of the remote controller.
Required space around the remote controller
(3) Installation work
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30 (1-3/16) |
30 |
30 |
(1-3/16) |
(1-3/16) |
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Temperature and Humidity sensor |
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120 (4-3/4) |
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unit: mm (in) |
Important
Use caution when handling circuit boards to prevent damage from static electricity. Although the circuit board is covered with an insulation sheet, part of the circuit board is exposed. Use extra caution not to let your fingers come in contact with the circuit board.
The remote controller can be installed either in the switch box or directly on the wall. Perform the installation properly according to the method.
1Drill a hole in the wall.
■Installation using a switch box
•Drill a hole in the wall, and install the switch box on the wall.
•Connect the switch box to the conduit tube.
■Direct wall installation
•Drill a hole in the wall, and thread the cable through it.
*No cable access hole is required when running the remote controller cable along the wall.
Wall |
Conduit tube |
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Locknut |
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Switch box |
Bushing |
Seal the gap |
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with putty. |
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Remote |
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controller cable |
2Seal 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.
To reduce the risk of electric shock, malfunctions, or fire, seal the gap between the cables and cable access holes 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.
Bottom case
– 8 –
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