TableofContents
Installeranduserreferenceguide
2
RYYQ+RYMQ+RXYQ8~20T7Y1B
VRVIVsystemairconditioner
4P3704751–2014.02
TableofContents
1 Generalsafetyprecautions 3
1.1 Aboutthedocumentation........................................................... 3
1.1.1 Meaningofwarningsandsymbols.............................. 3
1.2 Fortheinstaller.......................................................................... 4
1.2.1 General ....................................................................... 4
1.2.2 Installationsite ............................................................ 4
1.2.3 Refrigerant .................................................................. 4
1.2.4 Electrical ..................................................................... 5
1.3 Fortheuser ............................................................................... 6
2 Aboutthedocumentation 6
2.1 Aboutthisdocument.................................................................. 6
Fortheinstaller 6
3 Aboutthebox 6
3.1 Overview:Aboutthebox ........................................................... 6
3.2 Tounpacktheoutdoorunit........................................................ 7
3.3 Toremovetheaccessoriesfromtheoutdoorunit ..................... 7
3.4 Accessorypipes:Diameters ...................................................... 7
3.5 Toremovethetransportationstay............................................. 8
4 Abouttheunitsandoptions 8
4.1 Overview:Abouttheunitsandoptions ...................................... 8
4.2 Identificationlabel:Outdoorunit ................................................ 8
4.3 Abouttheoutdoorunit ............................................................... 8
4.4 Systemlayout ............................................................................ 9
4.5 Combiningunitsandoptions ..................................................... 9
4.5.1 Aboutcombiningunitsandoptions............................. 9
4.5.2 Possiblecombinationsofindoorunits......................... 9
4.5.3 Possiblecombinationsofoutdoorunits ...................... 9
4.5.4 Possibleoptionsfortheoutdoorunit........................... 9
5 Preparation 10
5.1 Overview:Preparation ............................................................... 10
5.2 Preparinginstallationsite .......................................................... 10
5.2.1 Installationsiterequirementsoftheoutdoorunit ........ 10
5.2.2 Additionalinstallationsiterequirementsofthe
outdoorunitincoldclimates ....................................... 11
5.2.3 Securingsafetyagainstrefrigerantleaks.................... 11
5.3 Preparingrefrigerantpiping ....................................................... 12
5.3.1 Refrigerantpipingrequirements.................................. 12
5.3.2 Toselectthepipingsize ............................................. 13
5.3.3 Toselectrefrigerantbranchkits.................................. 14
5.3.4 Aboutthepipinglength ............................................... 15
5.3.5 Pipinglength:VRVDXonly ........................................ 15
5.3.6 Pipinglength:VRVDXandHydrobox ........................ 16
5.3.7 Pipinglength:VRVDXandRADX............................. 17
5.3.8 Multipleoutdoorunits:Possiblelayouts...................... 17
5.4 Preparingelectricalwiring ......................................................... 18
5.4.1 Aboutelectricalcompliance ........................................ 18
5.4.2 Safetydevicerequirements ........................................ 19
6 Installation 19
6.1 Overview:Installation ................................................................ 19
6.2 Openingtheunits ...................................................................... 19
6.2.1 Toopentheoutdoorunit............................................. 19
6.2.2 Toopentheelectricalcomponentboxoftheoutdoor
unit .............................................................................. 20
6.3 Mountingtheoutdoorunit.......................................................... 20
6.3.1 Toprovidetheinstallationstructure............................ 20
6.4 Connectingtherefrigerantpiping .............................................. 21
6.4.1 Precautionswhenconnectingrefrigerantpiping......... 21
6.4.2 Aboutconnectingtherefrigerantpiping ...................... 21
6.4.3 Toroutetherefrigerantpiping..................................... 21
6.4.4 Toconnecttherefrigerantpipingtotheoutdoorunit .. 22
6.4.5 Toconnectthemulticonnectionpipingkit.................. 22
6.4.6 Multipleoutdoorunits:Knockoutholes ....................... 22
6.4.7 Toconnecttherefrigerantbranchingkit ..................... 22
6.4.8 Toprotectagainstcontamination................................ 23
6.4.9 Tobrazethepipeend................................................. 23
6.4.10 Usingthestopvalveandserviceport ......................... 23
6.4.11 Toremovethepinchedpipes...................................... 24
6.5 Checkingtherefrigerantpiping.................................................. 25
6.5.1 Aboutcheckingtherefrigerantpiping ......................... 25
6.5.2 Checkingrefrigerantpiping:Generalguidelines......... 25
6.5.3 Checkingrefrigerantpiping:Setup.............................. 25
6.5.4 Toperformaleaktest ................................................. 26
6.5.5 Toperformvacuumdrying .......................................... 26
6.6 Toinsulatetherefrigerantpiping ............................................... 26
6.7 Chargingrefrigerant................................................................... 26
6.7.1 Precautionswhenchargingrefrigerant ....................... 26
6.7.2 Aboutchargingrefrigerant .......................................... 27
6.7.3 Todeterminetheadditionalrefrigerantamount.......... 27
6.7.4 Tochargerefrigerant:Flowchart................................ 28
6.7.5 Tochargerefrigerant .................................................. 30
6.7.6 Step6a:Toautomaticallychargerefrigerant.............. 31
6.7.7 Step6b:Tomanuallychargerefrigerant..................... 32
6.7.8 Errorcodeswhenchargingrefrigerant........................ 33
6.7.9 Checksafterchargingrefrigerant................................ 33
6.7.10 Tofixthefluorinatedgreenhousegaseslabel ............ 33
6.8 Connectingtheelectricalwiring................................................. 33
6.8.1 Precautionswhenconnectingelectricalwiring ........... 33
6.8.2 Fieldwiring:Overview................................................. 34
6.8.3 Abouttheelectricalwiring ........................................... 34
6.8.4 Guidelineswhenknockingoutknockoutholes ........... 35
6.8.5 Torouteandfixthetransmissionwiring ..................... 35
6.8.6 Toconnectthetransmissionwiring............................. 35
6.8.7 Tofinishthetransmissionwiring................................. 36
6.8.8 Torouteandfixthepowersupply............................... 36
6.8.9 Toconnectthepowersupply...................................... 36
7 Configuration 37
7.1 Overview:Configuration ............................................................ 37
7.2 Makingfieldsettings .................................................................. 37
7.2.1 Aboutmakingfieldsettings ......................................... 37
7.2.2 Fieldsettingcomponents ............................................ 38
7.2.3 Toaccessthefieldsettingcomponents...................... 38
7.2.4 Toaccessmode1or2 ............................................... 38
7.2.5 Tousemode1 ............................................................ 38
7.2.6 Tousemode2 ............................................................ 39
7.2.7 Mode1:Monitoringsettings........................................ 39
7.2.8 Mode2:Fieldsettings................................................. 40
7.2.9 ToconnectthePCconfiguratortotheoutdoorunit .... 43
7.3 Energysavingandoptimumoperation ...................................... 43
7.3.1 Availablemainoperationmethods.............................. 44
7.3.2 Availablecomfortsettings ........................................... 44
7.3.3 Example:Automaticmodeduringcooling................... 45
7.3.4 Example:Automaticmodeduringheating .................. 46
7.4 Usingtheleakdetectionfunction............................................... 46
7.4.1 Aboutautomaticleakdetection................................... 46
7.4.2 Tomanuallyperformaleakdetection......................... 46
8 Commissioning 47
8.1 Overview:Commissioning ......................................................... 47
8.2 Precautionswhencommissioning ............................................. 47
8.3 Checklistbeforetestrun............................................................ 48
8.4 Abouttestrun ............................................................................ 48
8.5 Toperformatestrun ................................................................. 49
8.6 Correctingafterabnormalcompletionofthetestrun ................ 49
8.7 Operatingtheunit ...................................................................... 49
