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Contents
1. Safety precautions ........................................................................................... 6
1.1. Before installation and electric work ............................................... 6
1.2. Precautions for devices that use R410A refrigerant ....................... 6
1.3. Before getting installed ................................................................... 7
1.4. Before getting installed (moved) - electrical work .......................... 7
1.5. Before starting the test run ............................................................. 7
2. Indoor unit accessories ................................................................................... 7
3. Selecting an installation site ............................................................................ 7
its weight ........................................................................................ 8
3.2. Securing installation and service space ......................................... 8
3.3. Combining indoor units with outdoor units ..................................... 8
4. Fixing hanging bolts ........................................................................................ 8
4.1. Fixing hanging bolts ....................................................................... 8
5. Installing the unit ............................................................................................. 8
5.1. Hanging the unit body .................................................................... 8
5.2. ����� the unit's position and ��� hanging bolts .................. 8
6. Refrigerant pipe and drain pipe ������� ................................................ 8
6.1. Refrigerant pipe and drain pipe ������� ............................... 9
6.2. Refrigerant pipe, drain pipe ............................................................ 9
Note: If you use other remote controllers, refer to either Installation Manual or Initial Setting Manual that comes with the controller to be used.
1. Safety precautions
1.1. Before installation and electric work
► Before installing the unit, make sure you read all the "Safety
precautions".
► The "Safety precautions" provide very important points
regarding safety. Make sure you follow them.
Symbols used in the text
Warning:
Describes precautions that should be observed to prevent danger of injury
or death to the user.
Caution:
Describes precautions that should be observed to prevent damage to the unit.
Symbols used in the illustrations
: Indicates an action that must be avoided.
: Indicates that important instructions must be followed.
: Indicates a part which must be grounded.
: Indicates that caution should be taken with rotating parts. (This symbol is
displayed on the main unit label.) <Color: Yellow>
: Beware of electric shock. (This symbol is displayed on the main unit label.)
<Color: Yellow>
Warning:
Carefully read the labels affixed to the main unit.
Warning:
•
Ask the dealer or an authorized technician to install the air conditioner.
- Improper installation by the user may result in water leakage, electric shock,
or ��
•
Install the air unit at a place that can withstand its weight.
- Inadequate strength may cause the unit to fall down, resulting in injuries.
•
Use the specified cables for wiring. Make the connections securely so
that the outside force of the cable is not applied to the terminals.
- Inadequate connection and fastening may generate heat and cause a ��
•
Prepare for typhoons and other strong winds and earthquakes and
install the unit at the specified place.
- Improper installation may cause the unit to topple and result in injury.
•
Always use an air cleaner, humidifier, electric heater, and other
accessories specified by MITSUBISHI ELECTRIC TRANE HVAC US LLC.
- Ask an authorized technician to install the accessories. Improper installation
by the user may result in water leakage, electric shock, or ��
•
Never repair the unit. If the air conditioner must be repaired, consult the
dealer.
- If the unit is repaired improperly, water leakage, electric shock, or �� may
result.
•
Do not touch the heat exchanger fins.
- Improper handling may result in injury.
•
When handling this product, always wear protective equipment.
EG: Gloves, full arm protection namely boiler suit, and safety glasses.
- Improper handling may result in injury.
•
If refrigerant gas leaks during installation work, ventilate the room.
- If the refrigerant gas comes into contact with a ��� poisonous gases will
be released.
6
7. Connecting refrigerant pipes and drain pipes.................................................. 9
7.1. Refrigerant piping work .................................................................. 9
7.2. Drain piping work ........................................................................... 9
7.3. ����� drain discharge .......................................................... 10
8. Duct work ...................................................................................................... 10
9. Electrical wiring ............................................................................................. 10
9.1. Power supply wiring ......................................................................11
transmission cables ...................................................................... 12
9.3. Connecting electrical connections ................................................ 12
9.4. External I/O ������� ............................................................ 12
9.5. Selecting the external static pressure .......................................... 12
9.6. Setting addresses ........................................................................ 12
a remote controller ....................................................................... 12
9.8. Electrical characteristics ............................................................... 13
•
Install the air conditioner according to this Installation Manual.
- If the unit is installed improperly, water leakage, electric shock, or �� may
result.
•
Have all electric work done by a licensed electrician according to
"Electric Facility Engineering Standard" and "Interior Wire Regulations"
and the instructions given in this manual and always use a special
circuit.
- If the power source capacity is inadequate or electric work is performed
improperly, electric shock and �� may result.
•
Keep the electric parts away from water (washing water etc.).
- It might result in electric shock, catching �� or smoke.
•
Securely install the outdoor unit terminal cover (panel).
- If the terminal cover (panel) is not installed properly, dust or water may enter
the outdoor unit and �� or electric shock may result.
•
Do not use refrigerant other than the type indicated in the manuals
provided with the unit and on the nameplate.
- Doing so may cause the unit or pipes to burst, or result in explosion or ��
during use, during repair, or at the time of disposal of the unit.
- It may also be in violation of applicable laws.
- MITSUBISHI ELECTRIC TRANE HVAC US LLC cannot be held responsible
for malfunctions or accidents resulting from the use of the wrong type of
refrigerant.
•
If the air conditioner is installed in a small room, measures must be
taken to prevent the refrigerant concentration from exceeding the safety
limit even if the refrigerant should leak.
- Consult the dealer regarding the appropriate measures to prevent the safety
limit from being exceeded. Should the refrigerant leak and cause the safety
limit to be exceeded, hazards due to lack of oxygen in the room could result.
•
When moving and reinstalling the air conditioner, consult the dealer or
an authorized technician.
- If the air conditioner is installed improperly, water leakage, electric shock, or
�� may result.
•
After completing installation work, make sure that refrigerant gas is not
leaking.
- If the refrigerant gas leaks and is exposed to a fan heater, stove, oven, or
other heat source, it may generate noxious gases.
•
Do not reconstruct or change the settings of the protection devices.
- If the pressure switch, thermal switch, or other protection device is shorted
and operated forcibly, or parts other than those ���� by MITSUBISHI
ELECTRIC TRANE HVAC US LLC are used, �� or explosion may result.
•
To dispose of this product, consult your dealer.
•
Do not use a leak detection additive.
1.2. Precautions for devices that use R410A
refrigerant
Caution:
•
Do not use the existing refrigerant piping.
- The old refrigerant and refrigerator oil in the existing piping contains a large
amount of chlorine which may cause the refrigerator oil of the new unit to
deteriorate.
•
Use refrigerant piping made of C1220 (Cu-DHP) phosphorus deoxidized
copper as specified in the JIS H3300 "Copper and copper alloy seamless
pipes and tubes". In addition, be sure that the inner and outer surfaces
of the pipes are clean and free of hazardous sulphur, oxides, dust/dirt,
shaving particles, oils, moisture, or any other contaminant.
- Contaminants on the inside of the refrigerant piping may cause the
refrigerant residual oil to deteriorate.
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