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1
Digital Inverter
Installation Manual
EN-1
EN-2
Contents
1
ACCESSORY PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2
SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
3INSTALLATION OF NEW REFRIGERANT AIR CONDITIONER. . . . . . . 3
4
INSTALLATION CONDITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
5
REFRIGERANT PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
6
AIR PURGING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7
ELECTRICAL WORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
8
EARTHING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
9
FINISHING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
10 TEST RUN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
11 ANNUAL MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
12 AIR CONDITIONER OPERATING CONDITIONS. . . . . . . . . . . . . . . . . .11
13FUNCTIONS TO BE IMPLEMENTED LOCALLY. . . . . . . . . . . . . . . . . .12
14 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
15 APPENDIX. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Please read this Installation Manual carefully before installing the Air Conditioner.
• This Manual describes the installation method of the outdoor unit.
• For installation of the indoor unit, follow the Installation Manual attached to the indoor unit.
ADOPTION OF NEW REFRIGERANT
This Air Conditioner is a new type that has adopted a new refrigerant HFC (R410A) instead of the conventional
refrigerant R22 in order to prevent destruction of the ozone layer.
1
ACCESSORY PARTS
Accessory parts
INFORMATION
• The main pipe on the gas side of this outdoor unit has a diameter of Ø28.6 mm, but a Ø19.1 mm flare connection is
used where the valve is connected. Be sure to use the Ø19.1 mm pipe and joint provided as accessories for the
pipe connection.
• Before installing the unit, check that the unit has the correct model name to prevent the wrong unit from being
installed in the wrong place.
• Before proceeding to weld the refrigerant pipe, be sure to pass nitrogen through the pipe.
• Before installing the indoor units, read the instructions in the installation manual provided with the indoor units.
• The concealed duct high static pressure type is used for a single connection (when connecting a single indoor unit
to the outdoor unit).
Part name
Q’ty
Shape
Usage
Installation manual
1
Hand this directly to the customer.
Drain nipple
1
Waterproof rubber cap
1
Protective bush
1
For protecting wires (pipe cover)
Guard material for passage part
1
For protecting passage part (pipe cover)
Clamp filter
1
For conforming to EMC standards
(Used for power wire)
Ø19.1 mm pipe
1
For the pipe inside the outdoor unit
(Length: 800 mm)
Joint (Ø19.1 – Ø25.4 mm)
1
For connecting the pipe
Joint (Ø25.4 – Ø28.6 mm)
1
For connecting the pipe
Elbow
1
For connecting the pipe
11. INSTALLATION MANUAL
