Daikin UATYQ115AFC2Y1 [31/44] First starting

Translation from original instructions

Installation manual

We reserve the right to make changes without any prior notice.

UATYQ*Y1

Packaged Rooftop

4P522680-1

6.2 First starting

6.2.1 Preliminary checks

To operate, the unit must have the external OK signal input closed.

Refer to the wiring diagram supplied with the unit for connection of the external OK signal input.

Ifitisnotnecessaryforsystemrequirements,theexternalOKsignalinputmustbeshort-circuited.

6.2.2 Functional tests

The main ventilation system will start a few seconds after the unit has started.

The starting of the compressors depends on the thermoregulation request and on possible activation of the air

exchange on starting the washing function.

If the washing function is enabled, it can be overridden and stopped by pressing the "enter" button in

the main screen.

Check thatthe values measured by the sensors of the control (temperatures, pressures) correspond to the real

values.

Iftheunithasautomaticcontroloftheairowrateofthemainventilationsystem,checkontheuserinterfaceofthe

controlthatthesetowratesetpointhasbeenreached.Lowerowratevaluesindicateexcessiveheadlossesin

the aeraulic circuit.

Afterafewhoursofoperationofthecompressors,checkthattheliquidsightglasshasagreenring:ifitisyellow,

thereismoistureinthecircuit.Inthiscase,thecircuitmustbedriedbyqualiedauthorisedpersonnel.

Checkthatbubblesdonotappearattheliquidsightglass.Thecontinuouspassageofbubblescanindicatethereis

insu󰀩cientrefrigerantanditneedstobetoppedup.However,thepresenceofafewbubblesisallowed.

Itismandatorytokeeparegisterfortheunit(notsupplied),whichallowsyoutokeeptrackoftheworkcarriedout

ontheunit.Thiswillmakeiteasiertoappropriatelyorganizetheworktofacilitatethechecksandthepreventionof

malfunctions.

Statethefollowingintheregister:thetypeofrefrigerant,thedateandtypeofworkdone(routinemaintenanceor

repair), description of the work with any parts replaced, measures implemented, the operator who carried out the

workandhisqualication.