i‐SHWAKV4Inverterair/waterchillersandheatpumpswithfloor‐standingandremotecondensingunits
3
INDEX
1PURPOSESANDCONTENTSOFTHEMANUAL.........................................................................................5
1.1CONSERVATIONOFTHEMANUAL.......................................................................................................................................................5
1.2GRAPHICSYMBOLS..............................................................................................................................................................................5
2SAFETYLAWS.........................................................................................................................................5
3PERMITTEDUSES....................................................................................................................................5
4GENERALSAFETYGUIDELINES................................................................................................................6
4.1HEALTHANDSAFETYOFWORKERS.....................................................................................................................................................6
4.2PERSONALPROTECTIONEQUIPMENT.................................................................................................................................................6
4.3SAFETYSYMBOLS.................................................................................................................................................................................7
4.4REFRIGERANTSAFETYDATASHEET.....................................................................................................................................................7
5GENERALCHARACTERISTICS...................................................................................................................8
5.1AVAILABLEMODELS............................................................................................................................................................................8
5.2MAR.....................................................................................................................................................................................................8
5.3MARP...................................................................................................................................................................................................8
5.4MARS/MARPS......................................................................................................................................................................................9
6TECHNICALCHARACTERISTICS................................................................................................................9
6.1FRAME.................................................................................................................................................................................................9
6.2REFRIGERANTCIRCUIT........................................................................................................................................................................9
6.3COMPRESSORS....................................................................................................................................................................................9
6.4AIRSIDEEXCHANGERS.........................................................................................................................................................................9
6.5FANS..................................................................................................................................................................................................10
6.6USERHEATEXCHANGERS..................................................................................................................................................................10
6.7ELECTRICBOX....................................................................................................................................................................................10
6.8CONTROLSYSTEM.............................................................................................................................................................................10
6.9MONITORINGANDPROTECTIONDEVICES........................................................................................................................................10
6.10HYDRAULICCIRCUIT..........................................................................................................................................................................10
6.11FANSPEEDCONTROLLER...................................................................................................................................................................10
7DESCRIPTIONOFTHEINDOORUNITCODE...........................................................................................11
7.1OPTIONALACCESSORIES...................................................................................................................................................................15
8INSTALLATION......................................................................................................................................16
8.1GENERALITY.......................................................................................................................................................................................16
8.2LIFTINGANDHANDLING....................................................................................................................................................................16
8.2.1Indoorunit........................................................................................................................................................................16
8.2.2Outdoorunit.....................................................................................................................................................................17
8.3LOCATIONANDMINIMUMTECHNICALCLEARANCES.......................................................................................................................17
8.3.1Indoorunit........................................................................................................................................................................17
8.3.2Outdoorunit.....................................................................................................................................................................17
8.4HYDRAULICCONNECTIONS...............................................................................................................................................................18
8.4.1Plant’swatercharacteristics............................................................................................................................................19
8.4.2Hydrauliccircuit................................................................................................................................................................19
8.4.3Connections’positions......................................................................................................................................................20
8.4.3.1Indoorunit.....................................................................................................................................................................................20
8.4.3.2Outdoorunit..................................................................................................................................................................................20
8.4.4Drainagesystemconnection............................................................................................................................................20
8.4.4.1Indoorunit.....................................................................................................................................................................................20
8.4.4.2Outdoorunit..................................................................................................................................................................................21
8.4.5Connectionofthereliefvalve’sdischarge........................................................................................................................21
8.4.6Plantcircuitloading..........................................................................................................................................................21
8.4.7Plantcircuitunloading......................................................................................................................................................22
8.5INDICATIVEDIAGRAMSOFTHEPLANTCIRCUIT................................................................................................................................22
8.5.1Standardschematicdiagramoftheplant........................................................................................................................22
8.5.2SchematicdiagramoftheplantwithDHWrecirculation.................................................................................................23
8.5.3Particularschematicdiagramtypeoftheplantwithhydraulicseparatorandmixingvalve...........................................23
8.6REFRIGERANTCONNECTIONS............................................................................................................................................................24
8.6.1Refrigerantdiagrami‐SHWAKV406,08..........................................................................................................................26
8.6.2Refrigerantdiagrami‐SHWAKV410,12..........................................................................................................................26
8.6.3Refrigerantdiagrami‐SHWAKV414,14Tand16T..........................................................................................................27
8.7ELECTRICALCONNECTIONS...............................................................................................................................................................27
8.7.1Indoorunit........................................................................................................................................................................28
8.7.1.1Connectionterminals.....................................................................................................................................................................29
8.7.2Outdoorunit.....................................................................................................................................................................30
8.7.2.1Connectionterminals.....................................................................................................................................................................30
8.7.3Wiringbetweenindoorandoutdoorunits.......................................................................................................................31
8.7.4Removaloftheoutdoorunit’stopcoverforgettingaccesstotheterminalblockandelectricbox................................31
8.7.5Safetythermostats...........................................................................................................................................................31
