English
■English 12
Trial Operation and Testing
1. Trial operation and testing
1-1 Measurethesupplyvoltageandmakesurethatitfallsinthespeciedrange.
1-2 Trialoperationshouldbecarriedoutineithercoolingorheatingmode.
•Incoolingmode,selectthelowestprogrammabletemperature;inheatingmode,selectthehighestprogrammable
temperature.
1)Trialoperationmaybedisabledineithermodedependingontheroomtemperature.
Usetheremotecontrollerfortrialoperationasdescribedbelow.
2)Aftertrialoperationiscomplete,setthetemperaturetoanormallevel(26°Cto28°Cincoolingmode,20°Cto24°Cin
heatingmode).
3)Forprotection,thesystemdisablesrestartoperationfor3minutesafteritisturnedoff.
1-3 Carryoutthetestoperationinaccordancewiththeoperationmanualtoensurethatallfunctionsandparts,
suchaslouvermovement,areworkingproperly.
•Theairconditionerrequiresasmallamountofpowerinitsstandbymode.Ifthesystemisnottobeusedforsome
timeafterinstallation,shutoffthecircuitbreakertoeliminateunnecessarypowerconsumption.
•Ifthecircuitbreakertripstoshutoffthepowertotheairconditioner,thesystemwillrestoretheoriginaloperation
modewhenthecircuitbreakerisopenedagain.
Trial operation from remote controller
1) Press“ON/OFF”buttontoturnonthesystem.
2) Press“TEMP”button(2locations)and“MODE”buttonatthesametime.
3) Press“TEMP”buttonandselect“T”.
4) Press“MODE”button.
5) Trialoperationterminatesinapprox.30minutesandswitchesintonormalmode.Toquitatrialoperation,press
“ON/OFF”button.
2. Test items
Testitems
Symptom
(diagnosticdisplayonRC)
Check
Indoorandoutdoorunitsareinstalledproperlyonsolidbases. Fall,vibration,noise
Norefrigerantgasleaks.
Incompletecooling/heating
function
Refrigerantgasandliquidpipesandindoordrainhoseextensionare
thermallyinsulated.
Waterleakage
Draininglineisproperlyinstalled. Waterleakage
Systemisproperlyearthed. Electricalleakage
Thespeciedwiresareusedforinter-unitwiring. Inoperativeorburndamage
Indoororoutdoorunit’sairinletorairoutlethasclearpathofair.
Stopvalvesareopened.
Incompletecooling/heating
function
Indoorunitproperlyreceivesremotecontrolcommands. Inoperative
willappearwhentheMODEbuttonispressed.*
Noheating
* If the is not displayed, change the dipswitch setting
for the remote controller.
Slide the dipswitch to the left-hand side.
Press the MODE button again and check that
appears on the LCD of the remote controller.
Dipswitch
01_EN_3P297034-1.indd 12 10/12/2011 11:37:08 AM
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