Hitachi YUTAKI S COMBI Series User manual

–
INSTALLATION
AND OPERATION
MANUAL
–
YUTAKI S COMBI SERIES
INDOOR UNITS
PMEN0645 rev.0 - 04/2023
MODELS
SPLIT SYSTEM
RWD-(1.5-3.0)RW2E-220S(-K/6H)

EN
The English version is the original one; other languages are translated from English. Should any
discrepancy occur between the English and the translated versions, the English version shall
prevail.
ES
La versión en inglés es la original, y las versiones en otros idiomas son traducciones de la inglesa.
En caso de discrepancias entre la versión inglesa y las versiones traducidas, prevalecerá la versión
inglesa.
DE
Die englische Fassung ist das Original, und die Fassungen in anderen Sprachen werden aus dem
Englischenübersetzt. Sollten die englische und die übersetzten Fassungen voneinander abweichen,
so hat die englische Fassung Vorrang.
FR
La version anglaise est la version originale; les autres langues sont traduites de l’anglais. En cas de
divergence entre les versions anglaise et traduite, la version anglaise prévaudra.
IT
La versione inglese è l’originale e le versioni in altre lingue sono traduzioni dall’inglese. In caso di
divergenze tra la versione inglese e quelle tradoe, fa fede la versione inglese.
PT
A versão inglesa é a original; as versões em outras línguas são traduzidas do inglês. Em caso de
divergência entre a versão em língua inglesa e as versões traduzidas, faz fé a versão em língua
inglesa.
DA
Den engelske udgave er originalen, og udgaverne på andre sprog er oversat fra engelsk. Hvis der
forekommer uoverensstemmelser mellem den engelske og den oversae sprogudgave, vil den
engelske udgave være gældende.
NL
De Engelse versie is de originele; andere talen zijn vertaald uit het Engels. In geval van verschillen
tussen de Engelse versie en de vertaalde versies, hee de Engelse versie voorrang.
SV
Den engelska versionen är originalet, och versionerna på andra språk är från engelska
översäningar. I händelse av bristande överensstämmelse mellan den engelska och den översaa
versionerna, skall den engelska versionen vara gilg.
EL
Η αγγλική έκδοση είναι το πρωτότυπο και οι εκδόσεις σε άλλες γλώσσες μεταφράζονται από τα
αγγλικά. Σε περίπτωση που διαπιστωθούν διαφορές μεταξύ της αγγλικής και της μεταφρασμένης
έκδοσης, η αγγλική έκδοση είναι επικρατέστερη.
BG
Версията на английски език е оригиналната; версиите на останалите езици са в превод от
английски език. При различие между английската версия и преводна версия на друг език за
меродавна се счита английската версия.

CS
Originální verze tohoto dokumentu je v angličně; ostatní jazykové varianty jsou z angličny přeložené.
Pokud mezi anglickou a jakoukoli jinou jazykovou verzí dojde k rozporu, bude převažovat anglická verze.
HU
Az erede változat az angol; az egyéb nyelvű változatok angolról leek fordítva. Amennyiben az angol
és a fordíto verziók közö bármilyen eltérés mutatkozik, az angol nyelvű változat a mérvadó.
LT
Versija anglų kalba yra originali; versijos kitomis kalbomis yra išverstos iš anglų kalbos. Jei yra
neakimų tarp versijos anglų kalba ir versnių versijų, pirmenybė teikiama versijai anglų kalba.
PL
Wersja angielska jest wersją oryginalną - wszystkie pozostałe stanowią jej tłumaczenie na odpowiednie
języki. W przypadku stwierdzenia jakichkolwiek rozbieżności między oryginałem a jego tłumaczeniem,
rozstrzygająca jest wersja w języku angielskim.
RO
Versiunea originală este cea în limba engleză; versiunile în alte limbi sunt traduse din limba engleză.
Dacă există vreo discrepanță între versiunile în limba engleză și versiunea tradusă, prevalează versiunea
în limba engleză.
SK
Anglická verzia je pôvodná, ďalšie jazyky sú preložené z angličny. V prípade akýchkoľvek nezrovnalos
medzi anglickou a preloženou verziou, bude rozhodujúca anglická verzia.
UK
Англійська версія є оригінальною; інші мови переведені з англійської. У разі виникнення
розбіжностей між англійською та перекладеною версіями, англійська версія має переважну силу.
EN English Original version
ES
Español
Versión traducida
DE
Deutsch
Übersetzte Version
FR
Français
Version traduite
IT
Italiano
Versione tradoa
PT
Português
Versão traduzidal
DA
Dansk
Oversat version
NL
Nederlands
Vertaalde versie
SV
Svenska
Översa version
EL
Ελληνικα
Μεταφρασμένη έκδοση
BG
Български
Преведена версия
CS
Češna
Přeložená verze
HU
Magyar
Lefordíto változat
LT
Lietuvių
Versta versija
PL
Polski
Tłumaczenie wersji oryginalnej
RO
Română
Versiune tradusă
SK
Slovenčina
Preložená verzia
UK
Українська
Перекладена версія

I
PMEN0645 rev.0 - 04/2023
I
CONTENTS
Contents
01 General informaon .............................................................................................1
02 Name of parts and Dimensional data ..................................................................9
03 Electrical data .....................................................................................................11
04 Working range ....................................................................................................15
05 Refrigerant piping...............................................................................................19
06 Electrical and control sengs ............................................................................33
07 Maintenance.......................................................................................................55
08 Commissioning ...................................................................................................60
09 ERP Data .............................................................................................................66

I
PMEN0645 rev.0 - 04/2023
II
GENERAL INDEX
General Index
1. General informaon ...................................................................................................1
1.1 General informaon ..........................................................................................2
1.1.1 General notes ..........................................................................................2
1.2 Applied symbols.................................................................................................3
1.3 Addional informaon about safety .................................................................4
1.4 Important noce................................................................................................5
1.5 Product guide ....................................................................................................6
1.5.1 Classicaon of the units ........................................................................6
1.5.1.1 Split system - Indoor unit - YUTAKI S Combi................................6
1.5.2 Product list...............................................................................................7
1.5.2.1 Split system - Indoor unit - YUTAKI S Combi................................7
2. Name of parts and Dimensional data.........................................................................9
2.1 YUTAKI S Combi - RWD-(1.5-3.0)RW2E-220S(-K/6H).......................................10
3. Electrical data ...........................................................................................................11
3.1 Consideraons.................................................................................................12
3.2 Split system - Indoor unit - YUTAKI S Combi.....................................................13
3.2.1 RWD-(1.5-3.0)RW2E-220S(-K)...............................................................13
3.2.2 RWD-(2.0-3.0)RW2E-220S(-6H) ............................................................14
4. Working range ..........................................................................................................15
4.1 Power supply working range ...........................................................................16
4.2 R32 Temperature working range.....................................................................16
4.2.1 Space heang ........................................................................................16
4.2.2 DHW.......................................................................................................17

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PMEN0645 rev.0 - 04/2023
II
GENERAL INDEX
4.2.3 Swimming pool heang.........................................................................17
4.2.4 Space cooling (Necessary cooling kit) ...................................................17
4.3 R32 Hydraulic working range ..........................................................................18
4.3.1 Hydraulic data........................................................................................18
4.3.2 Pump performance curves....................................................................18
5. Refrigerant piping .....................................................................................................19
5.1 General notes before performing piping work ...............................................20
5.2 R32 Refrigerant circuit.....................................................................................20
5.2.1 General notes R32 refrigerant...............................................................20
5.2.2 Refrigerant piping ..................................................................................21
5.2.3 Refrigerant charge .................................................................................23
5.2.3.1 Refrigerant charge amount......................................................23
5.2.3.2 Refrigerant charge before shipment (W0 (kg)).........................23
5.3 Water piping ....................................................................................................23
5.3.1 Water piping size ...................................................................................23
5.3.2 Water quality for primary (space heang / cooling) and secondary
(DHW) circuit..........................................................................................24
5.3.2.1 Water lling ..............................................................................25
5.3.3 Requirements and recommendaons for the hydraulic circuit............28
5.3.4 Water ow control.................................................................................29
5.4 Space heang and DHW..................................................................................29
5.4.4.1 Addional hydraulic necessary elements for space heang ...29
5.4.4.2 Addional hydraulic necessary elements for DHW .................30
5.4.4.3 Addional hydraulic oponal elements (For DHW).................31
5.4.4.4 Addional hydraulic necessary elements for DHW
(only for UK market).................................................................32

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PMEN0645 rev.0 - 04/2023
II
GENERAL INDEX
6. Electrical and control sengs ..................................................................................33
6.1 General check ..................................................................................................34
6.2 Electrical connecon .......................................................................................35
6.2.1 Wiring size .............................................................................................35
6.2.2 Minimum requirements of the protecon devices ..............................37
6.3 Seng of DIP switches and RSW switches......................................................38
6.3.2.1 Locaon of DIP switches and rotary switches .........................38
6.3.2.2 Funcon of DIP switches and rotary switches .........................38
6.3.2.3 LED indicaon...........................................................................42
6.4 Terminal board connecons............................................................................43
6.4.1 Table board 1 .........................................................................................43
6.4.2 Table board 2 .........................................................................................44
6.4.2.1 Indoor/outdoor communicaon wiring (TB2) / ATW-RTU
Communicaon / Central Devices Communicaon .......... ......44
6.4.2.2 Summary of terminal board connecons................................45
6.4.2.3 Input terminals (Default input funcons)................................47
7. Maintenance.............................................................................................................55
7.1 Removing the covers .......................................................................................56
7.1.0.1 Removing the indoor unit covers.............................................56
7.1.0.2 Removing indoor unit electrical box ........................................57
7.1.0.3 Space heang pipes connecon ..............................................58
7.1.0.4 DHW pipes connecon ............................................................58
7.1.0.5 Drain pipes connecon ............................................................59
7.1.1 Test and check .......................................................................................59
8. Commissioning .........................................................................................................60
8.1 Before operaon..............................................................................................61

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PMEN0645 rev.0 - 04/2023
II
GENERAL INDEX
8.2 Preliminary check ............................................................................................61
8.2.1 Checking the unit...................................................................................61
8.2.2 Electrical checking .................................................................................61
8.2.3 Hydraulic circuit checking (space heang and DHW) ...........................62
8.2.4 Checking the refrigerant circuit.............................................................63
8.3 Commissioning procedure ..............................................................................63
8.4 Test run / air purge ..........................................................................................64
9. ERP Data....................................................................................................................66
9.1 AVERAGE climate.............................................................................................67
9.2 WARMER climate.............................................................................................68
9.3 COLDER climate ...............................................................................................68
9.4 Addional data ...............................................................................................69
9.5 General ERP data for hot water storage tanks................................................69

1
PMEN0645 rev.0 - 04/2023
1
GENERAL INFORMATION
General informaon
1.1 Generalinformaon ..........................................................................................2
1.1.1 Generalnotes ..........................................................................................2
1.2 Appliedsymbols.................................................................................................3
1.3 Addionalinformaonaboutsafety .................................................................4
1.4 Importantnoce................................................................................................5
1.5 Productguide ....................................................................................................6
1.5.1 Classicaonoftheunits ........................................................................6
1.5.1.1 Splitsystem-Indoorunit-YUTAKISCombi................................6
1.5.2 Productlist...............................................................................................7
1.5.2.1 Splitsystem-Indoorunit-YUTAKISCombi................................7