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    RWM-(H)FSN3E Indoor units

    RAS-H(V)RNME-AF Outdoor units

    RAS-HVRN2 Outdoor unit

    Technical Catalogue

    YUTAKI S SERIES

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    Contents

    TCGB0070 rev.3 - 04/2012

    C o n t e n t s

    General information

    Features and benefts

    General data

    Capacities and Selection data

    Acoustic characteristic curves

    Working range

    General dimensions

    Refrigerant cycle

    Piping work and refrigerant charge

    Electrical wiring

    Installation confgurations

    Optional functions

    Troubleshooting

    1

    2

    3

    45

    6

    78

    9

    1011

    12

    13

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    General Index

    TCGB0070 rev.3 - 04/2012

    V

    General Index

    1. General information ..................................................................................................... 11

    1.1 General information .................................................................................................................................. 12

    1.1.1 General notes ................................................................................................................................................ 12

    1.1.2 Introduction .................................................................................................................................................... 12

    1.1.3 Environment-friendly units ............................................................................................................................. 13

    1.2 Applied symbols ........................................................................................................................................ 14

    1.3 Product guide............................................................................................................................................15

    1.3.1 Classication of indoor unit models............................................................................................................... 15

    1.3.2 Classication of outdoor unit models............................................................................................................. 15

    1.3.3 Classication of Domestic Hot Water Tank accessory.................................................................................. 15

    1.3.4 Product guide: indoor unit ............................................................................................................................. 16

    1.3.5 Product guide: outdoor unit ...........................................................................................................................17

    1.3.6 Accessory code list ........................................................................................................................................ 17

    2. Features and benefits .................................................................................................. 21

    2.1 Selection benets .....................................................................................................................................22

    2.1.1 Environment-friendly system ......................................................................................................................... 22

    2.1.2 Expanded selection range ............................................................................................................................. 23

    2.1.3 Adaptability to the customers/system needs ................................................................................................24

    2.2 Installation benets...................................................................................................................................25

    2.2.1 Easy unit installation ...................................................................................................................................... 25

    2.2.2 Easy and exible electrical installation..........................................................................................................28

    2.3 Start-up benets .......................................................................................................................................29

    2.3.1 Start-up by pressing the Run/Stop button of LCD users interface ............................................................... 29

    2.3.2 Floor screed drying (Circuits 1 & 2) (Optional function) ................................................................................ 29

    2.3.3 Test run operation from LCD users interface ................................................................................................29

    2.4 Functionality benets................................................................................................................................30

    2.4.1 High efciency system................................................................................................................................... 30

    2.4.2 Wide capacity range ...................................................................................................................................... 30

    2.4.3 Expanded working range............................................................................................................................... 31

    2.4.4 Advanced technology .................................................................................................................................... 32

    2.5 Control features ........................................................................................................................................ 44

    2.5.1 Flexible space heating/cooling conguration and control.............................................................................. 44

    2.5.2 Flexible Domestic Hot Water (DHW) control .................................................................................................48

    2.5.3 Swimming pool combination control ............................................................................................................. 50

    2.5.4 Flexible water pumps control ......................................................................................................................... 50

    2.5.5 Other optional functions ................................................................................................................................ 50

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    General Index

    TCGB0070 rev.3 - 04/2012

    VI

    2.6 Maintenance benets................................................................................................................................51

    2.6.1 Complete operation display by LCD users interface .................................................................................... 51

    2.6.2 Front access to the electrical box .................................................................................................................. 51

    2.6.3 Electrical box turns on itself ........................................................................................................................... 52

    2.6.4 Shutdown valves ........................................................................................................................................... 522.6.5 Alarm hystorical data ..................................................................................................................................... 53

    3. General data .................................................................................................................. 55

    3.1 YUTAKI S system ..................................................................................................................................... 56

    3.2 Indoor unit ................................................................................................................................................. 57

    3.3 Outdoor unit .............................................................................................................................................. 59

    3.3.1 RAS-(2-6)(HVRN2/HVRNME-AF) ................................................................................................................. 59

    3.3.2 RAS-(4-10)HRNME-AF ................................................................................................................................. 60

    3.4 Domestic Hot Water Tank.........................................................................................................................61

    3.5 Component data ....................................................................................................................................... 62

    3.5.1 Indoor unit ..................................................................................................................................................... 62

    3.5.2 Outdoor unit ................................................................................................................................................... 63

    3.6 Electrical data ........................................................................................................................................... 65

    3.6.1 Considerations .............................................................................................................................................. 65

    3.6.2 Indoor unit .........................................................................................................