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INSTALLATION AND OPERATION MANUAL
15.1. TEST RUN PROCEDURE BY REMOTE CONTROL SWITCH
Turn ON the power source of the Indoor and Outdoor Units
Set the TEST RUN mode by remote control switch.
Depress the “MODE” and the “  OK” switches simultaneously for more than 3 
seconds.
a)  If “TEST RUN” and the counting number of the connected units to the remote 
control switch (for example “”) are indicated on the remote control switch, 
the connection of remote control cable is correct.→Go to 
b)  If no indication appear or the number of the units indicated is smaller than the 
actual number of the units, some abnormalities exist.→Go to 
Remote Control Switch 
Indication
Wrong Portions Inspection Points after Power Source OFF
No indication
 - The power source of Outdoor Unit is not turned 
ON.
 - The connection of the remote control cable is 
incorrect.
1. Connecting Points of Remote Control Cable terminal board of Remote Control switch and 
indoor unit.
2. Contact of Terminals of Remote Control Cable
 - The connecting wires of power supply line are 
incorrect or loosened.
3. Connection Order of each Terminal Board
4. Screw Fastening of each Terminal Boards.
Counting number of 
connected units is incorrect
 - The power source of Outdoor Unit is not turned 
ON. 
 - The operating line wiring between indoor unit 
and outdoor unit is not connected. 
 - The connection of control cables between each 
indoor units are incorrect. (When one remote 
control switch controls multiple units)
5. Dip Switch Setting on Printed Circuit Board
6. Connecting on the PCB
7.  This is the same as item 1, 2 , and 3.
Back to  after checking
Select TEST RUNNING MODE by depressing MODE Switch (COOL OR HEAT)
Depress RUN/STOP switch.
a  The TEST RUN operation will be started. (The 2 hours OFF-TIMER will be set and the TEST RUN operation will be nished after 2 hours unit operation or by depressing the 
RUN/STOP switch again).
  NOTE: 
TEST RUN operation ignores the temperature limitation and ambient temperature during heating operation to have a continuous operation, but the protections are alive. 
Therefore, the protection may activate when the heating TEST RUN operation is performed in high ambient temperature. 
TEST RUN operation time can be modifyed / increased depressing the time switch in the Remote Control.
b  If the unit do not start or the operation lamp on the remote control switch is ickered, some abnormalities exist. →Go to 
Remote Control 
Switch Indication
Unit Condition Wrong Portions Inspection Points after Power Source OFF
The operation lamp ickers. 
(1 time/1 sec.) And the Unit 
No. and Alarm Code “03” 
icker
The unit does not start.
The power source of Outdoor Unit in not 
turned ON.
The connecting wires of operating line 
are incorrect or loosened.
1.  Connecting Order of each Terminal Board. 
2.  Screw fastening of each Terminal Boards.
 NOTE:
Recovering method of FUSE for operating 
circuit. There is a fuse (FUSE4 on Indoor Unit 
PCB1, EF1 on Outdoor Unit PCB1) to protect 
operating circuit on the PCB, when the power 
lines are connected to  operating lines. If fuse 
is melted, operating circuit can be recovered 
once by setting the dip switch on the PCB as 
shown in 
The operation lamp ickers. 
(1 time/2 sec.)
The unit does not start.
Remote control cable is broken.
Contact of connectors is not good.
The connection of remote control cable 
is incorrect
This is the same as item 1 and 2
Indication of Flicker except 
above
The unit does not start, or start once and then 
stops
The connection of thermistor or other 
connectors are incorrect. Tripping of 
protector exists, or else.
Check by the abnormality mode table in the 
Technical Catalogue (Do it by service people).
The operation lamp Flickers. 
(1 Time/1s)
Unit No. , Alarm Code  
and Unit Code E icker
The unit does not start.
The connection of the remote control 
cable between Indoor Units is incorrect.
Check by the abnormality mode table in the 
Technical Catalog (Do it by service people).
Back to  after checking
Instructions fot the recovery when the fuse of the transmission circuit is blown out:
1.  Correct the wiring to the terminal board.
2.  Set the 1st pin of DSW7 on the indoor unit PCB to ON 
Set the DSW7 on the indoor unit PCB to ON 
(Only RPK-1.0/1.5)
Except RPK 1.0/1.5 Only RPK-1.0/1.5
Counting 
number of 
connected 
units
Operation lamp
PMML0197_r0_04-10.indb   38 08/07/2010   9:20:59