Test Run - Fujitsu ARXG 09 KLLAP Installation Manual

• The primary power supply capacity is for the air conditioner itself, and does not
include the concurrent use of other devices.
• If the electrical power is inadequate, contact your electric power company.
• Install a breaker in a location that is not exposed to high temperatures.
If the temperature surrounding the breaker is too high, the amperage at which the
breaker cuts out may decrease.
• When using an earth leakage breaker that has been designed solely for ground fault
protection, be sure to install a fuse-equipped switch or circuit breaker.
• This system uses an inverter, which means that it must be used an earth leakage
breaker that can handle harmonics in order to prevent malfunctioning of the earth
leakage breaker itself.
• Do not use crossover power supply wiring for the outdoor unit.
• If the temperature surrounding the breaker is too high, the amperage at which the
breaker cuts out may decrease.
• When the electrical switchboard is installed outdoors, place it under lock and key so
that it is not easily accessible.
• Start wiring work after closing branch switch and over current breaker.
• Transmission cable between indoor unit and outdoor unit is 230 V.
• Be sure not to remove thermistor sensor etc. from power wiring and connection
wiring. Compressor may fail if operated while removed.
• Always keep to the maximum length of the connection cable. Exceeding the
maximum length may lead to erroneous operation.
• Do not start operation until the refrigerant is charged completely. The compressor
will fail if it is operated before the refrigerant piping charging is complete.
• The static electricity that is charged to the human body can damage the control PC
Board when handling the control PC Board for address setting, etc.
Please keep caution to the following points.
Provide the grounding of Indoor unit, Outdoor unit and Option equipment.
Cut off the power supply (breaker).
Touch the metal section (such as the unpainted control box section) of the indoor or
outdoor unit for more than 10 seconds. Discharge the static electricity in your body.
Never touch the component terminal or pattern on the PC Board.
• Be careful not to generate a spark as follows for using a flammable refrigerant.
- Do not remove the fuse while power is on.
- Do not disconnect plug from the wall outlet and the wiring while the power is on.
- It is recommended to position the outlet connection in a high position. Place the
cords so that they do not get tangled.
• Confirm the indoor unit model name before connecting. If the indoor unit is not R32
compatible, error signal will be displayed, and the unit will be inoperable.
■ How to connect wiring to the terminal
Caution when wiring cable
• When stripping off the coating of a lead wire, always use a special tool such as a wire
stripper. If there is no special tool available, carefully strip the coating with a knife etc.
(1) Use ring terminals with insulating sleeves as shown in the figure below to connect
to the terminal block.
(2) Securely clamp the ring terminals to the wires using an appropriate tool so that the
wires do not come loose.
Strip : 10 mm
(3) Use the specified wires, connect them securely, and fasten them so that there is no
stress placed on the terminals.
(4) Use an appropriate screwdriver to tighten the terminal screws. Do not use a
screwdriver that is too small, otherwise, the screw heads may be damaged and
prevent the screws from being properly tightened.
(5) Do not tighten the terminal screws too much, otherwise, the screws may break.
Screw with special washer
Ring terminal
Wire
Terminal blocks
(6) See the table below for the terminal screw tightening torques.
Tightening torque [N·m (kgf·cm)]
M4 screw
M5 screw
CAUTION
Ring terminal
Sleeve
Screw with
special washer
Ring terminal
Wire
1.2 to 1.8 (12 to 18)
2.0 to 3.0 (20 to 30)
■ Wiring method
(1) Remove the outdoor unit switch cover. (See "3.3. Removing and replacing part".)
(2) Remove the outdoor unit cable clamp.
(3) Connect the power supply cable and the connection cable to terminal.
(4) Fasten the power supply cable and connection cable with cable clamp.
(5) Install the switch cover. (See "3.3. Removing and replacing part".)
Connection cable and
power cable
Valves
■ Connection diagrams
EARTH
(GROUND)
Outdoor unit side terminal
Power line
Earth(Ground) line
Indoor unit side terminal
■ Cable preparation
• Keep the earth (ground) wire longer than the other wires.
60 mm
Earth wire

4. TEST RUN

Make a TEST RUN in accordance with the installation manual for the indoor unit.
Screw
Cable clamp
Run the connection cable and power supply
cable to the rear of the outdoor unit between
the 2 valves as shown in the figure.
(For the switch cover to be easily installed.)
EARTH
(GROUND)
Earth
(Ground) line
Power supply
Power supply cable or
Connection cable
75 mm
En-9