1. CONNECTION DIAGRAM
4
ELECTRICAL WIRING
WARNING
(1) Before starting work, check that power is not being sup-
plied to indoor unit and the outdoor unit.
(2) Match the terminal block numbers and connection cord
colors of the indoor unit and the outdoor unit. Errone-
ous wiring may cause burning of the electric parts.
(3) Connect the connection cords firmly to the terminal
block. Imperfect installation may cause a fire.
(4) Always fasten the outside covering of the connection
cord with the cord clamp. (If the insulator is chafed,
electric leakage may occur.)
(5) Always connect the ground wire.
A. Solid wire
Strip 25 mm (15/16")
Insulation
Loop
B. Strand wire
Strip 10 mm (3/8")
Round
terminal
Wire
Screw with
special washer
Round
terminal
Terminal
board
Terminal block
Wire
Screw with
special washer
Round
terminal
HOW TO CONNECT WIRING
TO THE TERMINALS
A. For solid core wiring
(1) Cut the wire end with a wire cutter or wire-cutting pliers, then strip
the insulation to about 25 mm (15/16") to expose the solid wire.
(2) Using a screwdriver, remove the terminal screw(s) on the terminal
board.
(3) Using pliers, bend the solid wire to form a loop suitable for the
terminal screw.
(4) Shape the loop wire properly, place it on the terminal board and
tighten securely with the terminal screw using a screwdriver.
B. For strand wiring
(1) Cut the wire end with a wire cutter or wire-cutting pliers, then strip
the insulation to about 10 mm (3/8") to expose the strand wiring.
(2) Using a screwdriver, remove the terminal screw(s) on the terminal
board.
(3) Using a round terminal fastener or pliers, securely clamp a round
terminal to each stripped wire end.
(4) Position the round terminal wire, and replace and tighten the ter-
minal screw using a screwdriver.
2(N)
1
3
N
L
2(N)
3
1
Connection cord
To power supply
and ground
Indoor unit side
terminal block
Outdoor unit side
terminal block
Power supply cord
2. OUTDOOR UNIT SIDE
(1) Process the end of the connection cords to the dimensions shown in
figure.
(2) Connect the end of the connection cord fully into the terminal block
and fasten with the screws.
(3) Fasten the sheath with a cord clamp.
(4) Pass the connection cord and power cord through the hole of the
3-way valve bracket and run them to the outside of the cabinet.
Do not block the ventilation slots in the cabinet when wiring the power
cord and connection cords.
(5) Install the terminal cover and valve cover as shown in figure.
Pass the power cord and connections cords through the valve cover
when wiring them.
5
POWER
WARNING
(1) The rated voltage of this product is 230 V A.C. 50 Hz.
(2) Before turning on the verify that the voltage is within
the 198 V to 264 V range.
(3) Always use a special branch circuit and install a spe-
cial breaker to supply power to the air conditioner.
(4) Use a circuit breaker matched to the capacity of the air
conditioner. (Install in accordance with standard)
(5) The circuit breaker is installed in the permanent wiring.
Always use a circuit that can trip all the poles of the
wiring and has an isolation distance of at least 3 mm
between the contacts of each pole.
(6) Perform wiring work in accordance with standards so
that the air conditioner can be operated safely and posi-
tively.
(7) Install a leakage circuit breaker in accordance with the
related laws and regulations and electric company
standards.
CAUTION
(1) The power source capacity must be the sum of the air
conditioner current and the current of other electrical
appliances. When the current contracted capacity is in-
sufficient, change the contracted capacity.
(2) When the voltage is low and the air conditioner is diffi-
cult to start, contact the power company the voltage
raised.
7
CUSTOMER GUIDANCE
Explain the following to the customer in accordance with the operating
manual:
(1) Starting and stopping method, operation switching, temperature ad-
justment, timer, air flow switching, and other remote control unit op-
erations.
(2) Air filter removal and cleaning, and how to use the air louvers.
(3) Give the operating manual and installation instruction sheet to the
customer.
PART NO. 9374318117
TEST RUNNING
CAUTION
Always turn on the power 4 hours prior to the start of the
operation in order to ensure compressor protection.
•
Perform test operation and check items (1) to (3) below.
•
For the operation method, refer to the operating manual.
•
The outdoor unit may not run, depending on the room temperature.
In this case, the ‘TEST RUN’ signal is received during air conditioner
operation. (For information on the ‘TEST RUN’, refer to the installation
instruction sheet included with the indoor unit or the operating manual.)
Operation can be checked by lighting and flashing of the display section
OPERATION and TIMER lamps.
Perform judgement in accordance with the following.
•
Test running
When the air conditioner is run by pressing the remote control unit
TEST RUN button, the OPERATION and TIMER lamps flash slowly
at the same time.
•
Error
The LED lamp of an outdoor unit operates as follows (Table 8) ac-
cording to the contents of an error.
CHECK ITEMS
OUTDOOR UNIT
(1) Is there any abnormal noise and vibration during operation?
(2) Will noise, wind, or drain water from the unit disturb the neighbors?
(3) Is there any gas leakage?
•
Do not operate the air conditioner in the test running state for a long
time.
•
For the operation method, refer to the operating manual and perform
operation check.
6
N
L
1 2
(N)
3
Terminal board
Cord clamp
Insulation tube
Power cord
Connection cord
Connection cord
Connection pipe
Power cord
1
3
L
N
2 (N)
Cabinet
Terminal cover
Valve cover
Table 8
Error contents
Serial signal error
Discharge pipe thermistor error
Heat exchanger thermistor error
Outdoor temperature thermistor error
Compressor thermistor error
Pressure switch error
Current trip error
CT error
Compressor position detection error
Compressor starting error
Timer error
LED (RED)
1 time blink
2 times blink
3 times blink
4 times blink
7 times blink
8 times blink
10 times blink
11 times blink
12 times blink
13 times blink
14 times blink
9374318117_IM_back.p65
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