Contents
1. Safety Instructions .................................................................................................................................................................... 1
2. Parts .......................................................................................................................................................................................... 3
3. System ...................................................................................................................................................................................... 4
4. Installation ................................................................................................................................................................................. 7
5. Functions of Switch and LED .................................................................................................................................................. 11
6. Wiring and Setting Check ....................................................................................................................................................... 12
7. Connected Equipment Information ......................................................................................................................................... 13
8. Specifications .......................................................................................................................................................................... 14
Mitsubishi Electric is not responsible for the failure of locally supplied parts.
1. Safety Instructions
● Before installing the Equipment Controller, make sure you
read all the "Safety Instructions."
● This installation manual contains important safety
information. Be sure to comply with the instructions.
● Carefully read the labels attached to the unit.
(Improper handling may have serious consequences, including serious injury or death.)
■ Users should never install the Equipment Controller on
their own.
Improper installation may result in fire, electric shock, or
damage/water leaks. Consult the dealer from whom you
purchased the unit or professional installer.
■ The Equipment Controller must be securely installed on
a structure that can sustain its weight.
If the Equipment Controller is mounted on an unstable
structure, it may fall down and cause damage or injuries.
■ The Equipment Controller must be installed according
to the instructions in order to minimize the risk of
damage by earthquakes, hurricanes, or strong winds.
Improperly installed Equipment Controller may fall down and
cause damage or injuries.
■ Connect and fasten the electric wires securely so
external force on the wires will not apply on the
terminals.
Improper connection and mounting may result in breakdown,
heat generation, smoke generation, or fire.
■ All electric work must be performed by a qualified
technician according to local regulations and the
instructions given in this manual.
For the Equipment Controller power line, correct voltage and
circuit breakers must be used. Power lines with insufficient
capacity or incorrect electrical work may result in electric
shock or fire.
■ This appliance is not intended for use by persons
(including children) with reduced physical, sensory
or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision or
instruction concerning use of the appliance by a person
responsible for their safety.
■ The Equipment Controller should be securely installed
in accordance with this installation manual.
Improper installation may result in fire, electric shock, or
damage.
EN-1
● After installation, perform the test run to ensure normal
operation. Explain to your customer the "Safety Instructions,"
use, and maintenance of the unit based on the information
in the Installation Manual. The Installation Manual must be
given to the user. This manual must always be kept by the
actual users.
Warning
■ Mitsubishi Electric components or other designated
components must be used for installation.
Improper component may result in fire, electric shock, or
damage/water leaks.
■ Cover panel of the Equipment Controller must be firmly
affixed.
If the cover panel is mounted improperly, dust and moisture
may enter the Equipment Controller, and it may result in fire,
electric shock, or damage.
■ Do not remodel the Equipment Controller. Consult an
installer for repairs.
If alterations or repairs are not performed correctly, it may
result in fire, electric shock, or damage.
■ The user should never attempt to repair the Equipment
Controller or transfer it to another location.
If the Equipment Controller is installed improperly, it may
result in fire, electric shock, or damage. If the Equipment
Controller needs to be repaired or moved, ask an installer or
an authorized technician.
■ Do not connect the Equipment Controller to ground
inside the indoor unit.
■ Do not expose the terminals of sensor and parts.
■ The Equipment Controller has signal outputs for
equipment (Humidifier, Dehumidifier, Heater etc.);
however, it can not isolate power to them in the event of
overheating. All equipment connected to the Equipment
Controller must comply with National regulation.
■ Any heating system connected to Equipment Controller
must have it's own fire protector.
■ Only a dealer or qualified technician should install,
relocate, reinstall, or repair the device.
■ Equipment Controller will automatically manage the
operation of the equipment connected to it. Before
turning on power to the Equipment Controller, verify that
all connected equipment is properly installed and ready
for operation.
■ Turn off power supply of the equipment when cleaning
or performing maintenance work.