Installation of remote controller17
17  INSTALLATION OF REMOTE CONTROLLER
17.1 INSTALLATION OF REMOTE CONTROL SWITCH (PC-ART EXAMPLE)
PC-ART
All data related to Installation about Remote Control Switch are in the specic Installation Manual. 
Please refer to Installation Manual PMML0177A for PC-ART and PMML0225A for PC-ARF.
18  TEST RUNNING
When installation is completed, perform test run according to the 
following procedure, and hand over the system to the customer. 
Perform test run regarding indoor units one by one in order, and 
conrm  that  the  electrical  wiring  and  the  refrigerant  piping  are 
correctly connected.
Test run should be performed according to the Test run procedure 
on next page.
  CAUTION
Do not operate the system until all the check points have been 
cleared:
•  Check to ensure that the electrical resistance is more than 
1 MΩ, by measuring the resistance between ground and the 
terminal of the electrical parts. If not, do not operate the sys-
tem until the electrical leakage is found and repaired. Do not 
impress the voltage on the terminals for transmission 1 and 2.
•  Check to ensure that the stop valves of the outdoor unit are 
fully opened, and then start the system.
•  Check to ensure that the switch on the main power source has 
been ON for more than 12 hours, to warm the compressor oil 
by the oil heater.
•  Pay attention to the following items while the system is run-
ning:
•  Do not touch any of the parts by hand at the discharge gas 
side, since the compressor chamber and the pipes at the dis-
charge side are heated higher than 90°C.
•  DO  NOT  PUSH  THE  BUTTON  OF  THE  MAGNETIC 
SWITCH(ES), it will cause a serious accident.
•  Do not touch any electrical components for more than three 
minutes after turning OFF the main switch
•  Conrm that the gas line stop valve and the liquid line stop 
valve are fully open.
•  Conrm that the leakage of the refrigerant does not exist. The 
are nuts are sometimes loosened by vibration during trans-
portation.
•  Check that the refrigerant piping and the electrical wiring con-
form to the same system.
•  Conrm that the dip switch setting on the printed circuit board 
of the indoor units and the outdoor units are correct.
•  Check whether or not the electrical wiring of the indoor units 
and the outdoor units are connected as shown in the chapter 
Electrical wiring.
  CAUTION
Conrm  that  eld-supplied  electrical  components  (main  switch 
fuse, fuse-free breaker, earthleakage breakers, wires, conduit 
connectors and wire terminals) have been properly selected ac-
cording to the electrical data given in the Technical Catalog of the 
unit and ensure that the components comply with national and 
local codes.
  NOTE
•  For more reference check Troubleshooting chapter on Ope-
ration part.
•  For  2  indoor  units  system  check  the  indoor  unit  outlet  air 
temperature at test run. If the temperature difference is large 
(aprox. 10 deg. or more (cooling) 20 deg. or more (heating) 
recheck the refrigerant piping, Installation may have some 
problem.
•  In the case of anual cooling optional function, cut JP1 out and 
set  the  DSW6-1  to  OFF.  (Individual  control  is  not  available 
when anual cooling is selected), (IVX series only).