CDXS18LVJU User Manual

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12 ■English

Trial Operation and Testing

1. Trial operation and testing

(1)Measurethesupplyvoltageandmakesurethatitfallsinthespeciedrange.

(2)Trialoperationshouldbecarriedoutineithercoolingorheatingmode.

(1) Press ON/OFF button to turn on the system.

(2) Simultaneously press center of TEMP button and MODE button.

(3) Press MODE button twice.

(“ ” will appear on the display to indicate that Trial Operation mode is selected.)

(4) Trial operation mode terminates in approx. 30 minutes and switches into normal mode. To quit the trial operation, press

ON/OFF button.

Trial operation from remote controller

Incoolingmode,selectthelowestprogrammabletemperature;inheatingmode,selectthehighestprogrammable

temperature.

•Trialoperationmaybedisabledineithermodedependingontheroomtemperature.

•Aftertrialoperationiscomplete,setthetemperaturetoanormallevel(79°F(26°C)to82°F(28°C)incoolingmode,68°F

(20°C)to75°F(24°C)inheatingmode).

•Forprotection,thesystemdisablesrestartoperationfor3minutesafteritisturnedoff.

(3)CarryoutthetestoperationinaccordancewiththeOperationManualtoensurethatallfunctionsandparts,areworking

properly.

*Theairconditionerrequiresasmallamountofpowerinitsstandbymode.Ifthesystemisnottobeusedforsometime

afterinstallation,shutoffthecircuitbreakertoeliminateunnecessarypowerconsumption.

*Ifthecircuitbreakertripstoshutoffthepowertotheairconditioner,thesystemwillrestoretheoriginaloperationmode

whenthecircuitbreakeristurnedonagain.

2. Test items

Testitems

Symptom

(diagnosticdisplayonRC)

Check

Indoorandoutdoorunitsareinstalledproperlyonsolidbases. Fall,vibration,noise

Norefrigerantgasleaks.

Incompletecooling/heating

function

Refrigerantgasandliquidpipesandindoordrainhoseextension

arethermallyinsulated.

Waterleakage

Drainpipeisproperlyinstalled. Waterleakage

Systemisproperlygrounded. Electricalleakage

Thespeciedwiresareusedforinterconnectingwireconnections. Inoperativeorburndamage

Indoororoutdoorunit’sairinletordischargehasclearpathofair.

Shut-offvalvesareopened.

Incompletecooling/heating

function

Indoorunitproperlyreceivesremotecontrollercommands. Inoperative

01_EN_3P297301-4D.indd 12 5/8/2017 5:10:25 PM

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User Manual - Page 13