Mitsubishi Electric Smart ME Controller User manual

– 1 –

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

For distribution to dealers and contractors

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

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CAUTION

WARNING

CAUTION

WARNING

CAUTION

Precautions during installation

Precautions during wiring

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.

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.

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.

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.

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.

WT06684X01_GB.fm Page 2 Thursday, March 7, 2013 10:23 AM

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WARNING

CAUTION

Precautions for moving or repairing the controller

Additional precautions

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.

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.

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.

WT06684X01_GB.fm Page 3 Thursday, March 7, 2013 10:23 AM

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The following parts are included in the box.

(1) Field-supplied parts

(2) Required tools

• Flat-tip screwdriver (Width: 4-5.5 mm (5/32-7/32 in))

• Knife or nipper

• Miscellaneous tools

2 Component names and supplied parts

*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.

3 Field-supplied parts/Required tools

Parts name Qty. Notes

Double switch box 1

Not required for direct wall installationThin metal conduit As needed

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 mm² (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 16) or equivalent

Parts name Qty.

Remote controller (front cover) *1 1

Remote controller (top case) *1 1

Remote controller (bottom case) 1

Roundhead cross slot screws M4×30 *2 4

Wood screw 4.1×16 *2

(for direct wall installation) 4

Installation Manual (this manual) 1

Instruction book 1

Bottom case

Front cover Top case

WT06684X01_GB.fm Page 4 Thursday, March 7, 2013 10:23 AM

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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.

*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.

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. Only one

cable can be connected to the remote controller terminal

block.

- The ME remote controller and MA remote controller

cannot be connected in the same group.

051

TB7 TB3 TB5

001

TB5

002

TB5

003

TB5

004

101 102 104

056

TB7 TB3 TB5

009

TB5

008

TB5

007

TB5

006

107 157

CENTRALIZEDCONTROLLERA G-150A

201

000

Outdoor unit

Smart ME

Controller *1

Indoor unit Indoor unit

Smart ME

Controller

Indoor unit Indoor unit

Smart ME

Controller

Indoor unit

Smart ME

Controller

Smart ME

Controller

Indoor unit Indoor unit Indoor unit

Outdoor unit

Centralized

controller Power supply

unit

LOSSNAY unit

005

Advanced HVAC

CONTROLLER (AHC)

Group 01 Group 02 Group 03

Group 04

Main

remote

controller

Sub

remote

controller

WT06684X01_GB.fm Page 5 Thursday, March 7, 2013 10:23 AM

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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.

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).

: 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.

5HowToInstall

Occupancy sensor

Horizontal direction Vertical direction

110°

Remote

controller

Wall

10 m

Figure 1

31°

11°

20°

Remote

controller

Floor

Wall

10 m

Figure 2

WT06684X01_GB.fm Page 6 Thursday, March 7, 2013 10:23 AM

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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

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.

Brightness sensor

Horizontal direction Vertical direction

44°

Remote

controller

Wall

Figure 3

44°

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

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.

Important

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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.

(3) Installation work

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.

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.

3Prepare 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.

(1-3/16)

30 (1-3/16)

120 (4-3/4)

Temperature and Humidity sensor

unit: mm (in)

Required space around the remote controller

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.

Important

Wall Conduit tube

Locknut

Switch box

Seal the gap

with putty.

Remote

controller cable

Bushing

To reduce the risk of electric shock, malfunctions, or fire, seal the gap between the cables and

cable access holes with putty.

Bottom case

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– 9 –

• Cut out the thin-wall part on the cover (indicated with the shaded

area in the right figure) with a knife or a nipper.

Note:

Make sure that the hole edges are smooth and will not damage

the wires.

4Install the bottom case.

• Remove the sheath as shown in the figure at right, and route the

remote controller cable behind the bottom case.

Install the bottom case.

■Installation using a switch box

• Secure at least two corners of the switch box with screws.

■Direct wall installation

• Secure at least two corners of the remote controller with screws.

• Be sure to secure top-left and bottom-right corners of the remote

controller (viewed from the front) to prevent it from lifting.

(Use molly anchor etc.)

5Install 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.

Refer to “1Uninstalling the front cover” on page 12.

■Installation using a switch box ■Direct wall installation

60 (2-3/8)

6 (1/4)

Unit: mm (in)

Sheath

Remote

controller

cable

Refer to 2.

Double switch box

Roundhead

cross slot

screws

Seal the cable

access hole

with putty.

Wood

screws

Remote

controller

cable

To avoid damage to the controller, do not

overtighten the screws.

To avoid damage to the controller, do not

make holes on the controller cover.

Important

Wall

Should not

be lifted

WT06684X01_GB.fm Page 9 Thursday, March 7, 2013 10:23 AM

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6Connect the remote controller cable to the terminal block on the top case.

Connect the remote controller cable to the terminal block.

* Take the following procedure only when

performing direct wall installation and

drilling a hole in the wall.

• Seal the hole through which the cable is

threaded with putty.

Connect the cable to the

terminal block, 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

prevent undue force from being applied to

the terminal block and causing cable

breakage.

Important

Remote

controller cable

Seal the gap with putty.

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

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