En-1
WARNING
Installation work must be performed in accordance with national wiring standards by
authorized personnel only.
Do not use this equipment with air or any other unspeci
fi
ed refrigerant in the refrigerant
lines.
Excess pressure can cause a rupture.
During installation, make sure that the refrigerant pipe is attached
fi
rmly before you run
the compressor.
Do not operate the compressor under the condition of refrigerant piping not attached
properly with 3-way valve open. This may cause abnormal pressure in the refrigeration
cycle that leads to rupture and even injury.
When installing and relocating the air conditioner, do not mix gases other than the
speci
fi
ed refrigerant (R410A) to enter the refrigerant cycle.
If air or other gas enters the refrigerant cycle, the pressure inside the cycle will rise to
an abnormally high value and cause rupture, injury, etc.
Do not remove the connection pipe while the compressor is in operation with 3-way
valve open.
This may cause abnormal pressure in the refrigeration cycle that leads to rupture and
even injury.
For the air conditioner to operate satisfactorily, install it as outlined in this installation
manual.
Connect the indoor unit and outdoor unit with the air conditioner piping and cable
available standards parts.
This installation manual describes the correct connections using the installation set
available from our standard parts.
Also, do not use an extension cable.
Do not purge the air with refrigerants but use a vacuum pump to vacuum the installation.
There is not extra refrigerant in the outdoor unit for air purging.
Use a vacuum pump for R410A exclusively.
Using the same vacuum pump for different refrigerants may damage the vacuum pump
or the unit.
Use a clean gauge manifold and charging hose for R410A exclusively.
During the pump-down operation, make sure that the compressor is turned off before
you remove the refrigerant piping.
Do not remove the connection pipe while the compressor is in operation with 3-way
valve open.
This may cause abnormal pressure in the refrigeration cycle that leads to rupture and
even injury.
CAUTION
Read carefully all security information before use or install the air conditioner.
Do not attempt to install the air conditioner or a part of the air conditioner by yourself.
This unit must be installed by quali
fi
ed personnel with a capacity certi
fi
cate for handling
refrigerant
fl
uids. Refer to regulation and laws in use on installation place.
The installation must be carried out in compliance with regulations in force in the place
of installation and the installation instructions of the manufacturer.
This unit is part of a set constituting an air conditioner. It must not be installed alone or
with non-authorized by the manufacturer.
Always use a separate power supply line protected by a circuit breaker operating on all
wires with a distance between contact of 3mm for this unit.
The unit must be correctly earthed (grounded) and the supply line must be equipped
with a differential breaker in order to protect the persons.
The units are not explosion proof and therefore should not be installed in explosive
atmosphere.
This unit contains no user-serviceable parts. Always consult authorized service
personnel to repairs.
When moving, consult authorized service personnel for disconnection and installation of
the unit.
Children should be monitored to ensure they do not play with the device.
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. Children should be supervised to ensure that they do
not play with the appliance.
Do not touch the aluminum
fi
ns of heat exchanger built-in the indoor or outdoor unit to
avoid personal injury when you install or maintain the unit.
Do not place any other electrical products or household belongings under indoor unit or
outdoor unit. Dripping condensation from the unit might get them wet, and may cause
damage or malfunction of your property.
Contents
1. SAFETY
PRECAUTIONS
............................................................................................ 1
2. ABOUT THE UNIT ....................................................................................................... 2
2.1. Precautions for using R410A refrigerant ............................................................ 2
2.2. Special tools for R410A ...................................................................................... 2
2.3. Accessories
........................................................................................................ 2
2.4. Operating
range
................................................................................................. 2
3. INSTALLATION
WORK
............................................................................................... 2
3.1. Selecting an installation location ........................................................................ 2
3.2. Drain
installation
................................................................................................. 3
3.3. Installation
dimensions
....................................................................................... 3
3.4. Transporting the unit .......................................................................................... 4
3.5. Installation
.......................................................................................................... 4
4. PIPE
SELECTION
....................................................................................................... 4
4.1. Selecting the pipe material ................................................................................. 4
4.2. Protection of pipes ............................................................................................. 5
4.3. Refrigerant pipe size and allowable piping length .............................................. 5
4.4. Connectable pipe diameter and max. piping length ........................................... 5
5. PIPE
INSTALLATION-1
............................................................................................... 5
5.1. Opening a knock out hole .................................................................................. 5
5.2. Brazing
............................................................................................................... 5
5.3. Flare connection (pipe connection) .................................................................... 5
5.4. Sealing
test
........................................................................................................ 6
5.5. Vacuum
process
................................................................................................ 7
5.6. Additional
charging
............................................................................................. 7
6. ELECTRICAL
WIRING
................................................................................................ 7
6.1. Notes for electrical wiring ................................................................................... 7
6.2. Selecting circuit breaker and wiring ................................................................... 8
6.3. Knock out holes for wiring .................................................................................. 8
6.4. Wiring
method
.................................................................................................... 9
7. PIPE
INSTALLATION-2
.............................................................................................. 9
7.1. Installing
insulation
............................................................................................. 9
7.2. Filling with putty .................................................................................................. 9
8. HOW TO OPERATE DISPLAY UNIT ......................................................................... 10
8.1. Various setting methods ................................................................................... 10
8.2. Description of display ....................................................................................... 10
9. LOCAL
SETTING
...................................................................................................... 10
9.1. Low noise mode (Local work) .......................................................................... 10
9.2. Peak cut mode (Local work) ............................................................................. 11
10. TEST RUN
................................................................................................................. 12
10.1. Check items before performing the test run ..................................................... 12
10.2. Test run method ............................................................................................... 12
11. PUMP
DOWN
............................................................................................................ 12
11.1. Preparation for pump down .............................................................................. 13
11.2. Pump down procedure ..................................................................................... 13
12. ERROR CODE DISPLAY .......................................................................................... 13
12.1. How to check error code .................................................................................. 13
12.2. Error code check table ..................................................................................... 14
1. SAFETY PRECAUTIONS
Be sure to read this manual carefully before installation.
•
The warnings and precautions indicated in this manual contain important information
•
pertaining to your safety. Be sure to observe them.
Hand this manual, together with the operating manual, to the customer. Request the
•
customer to keep them on hand for future use, such as for relocating or repairing the
unit.
WARNING
This mark indicates procedures which, if improperly performed,
might lead to the death or serious injury of the user.
CAUTION
This mark indicates procedures which, if improperly performed,
might possibly result in personal harm to the user, or damage to
property.
WARNING
Never touch electrical components immediately after the power supply has been turned
off. Electrical shock may occur. After turning off the power, always wait 10 minutes or
more before touching electrical components.
Request your dealer or a professional installer to install the outdoor unit in accordance
with this installation manual. an improperly installed unit can cause serious accidents
such as water leakage, electric shock, or
fi
re.
If the outdoor unit is installed in disregard of the instructions in the installation manual, it
will void the manufacturer’s warranty.
Do not turn ON the power until all work has been completed. Turning ON the power
before the work is completed can cause serious accidents such as electric shock or
fi
re.
If refrigerant leaks while work is being carried out, ventilate the area. If the refrigerant
comes in contact with a
fl
ame, it produces a toxic gas.
INSTALLATION MANUAL
OUTDOOR UNIT
PART No. 9379069403
English
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