Hitachi YUTAKI M R32 Series User manual

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INSTALLATION &
OPERATION
MANUAL
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YUTAKI M R32 series
YUTAKI HYDROSPLIT R32 series
PMML0600 rev.0 - 06/2022
MODELS
RASM-(2/3)VRE
RASM-(4-7)(V)R1E
RASM-(4-7)(V)RW1E
HWM-WE
HWD-WE-220S(-K)

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 tradotte, 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 oversatte 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
översättningar. I händelse av bristande överensstämmelse mellan den engelska och den
översatta versionerna, skall den engelska versionen vara giltig.
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 angličtině; ostatní jazykové varianty jsou z angličtiny
přeložené. Pokud mezi anglickou a jakoukoli jinou jazykovou verzí dojde k rozporu, bude převažovat
anglická verze.
HU
Az eredeti változat az angol; az egyéb nyelvű változatok angolról lettek fordítva. Amennyiben az
angol és a fordított verziók között 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
neatitikimų tarp versijos anglų kalba ir verstinių 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 angličtiny. V prípade akýchkoľvek
nezrovnalostí 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 tradotta
PT
Português
Versão traduzidal
DA
Dansk
Oversat version
NL
Nederlands
Vertaalde versie
SV
Svenska
Översatt version
EL
Ελληνικα
Μεταφρασμένη έκδοση
BG
Български
Преведена версия
CS
Čeština
Přeložená verze
HU
Magyar
Lefordított változat
LT
Lietuvių
Versta versija
PL
Polski
Tłumaczenie wersji oryginalnej
RO
Română
Versiune tradusă
SK
Slovenčina
Preložená verzia
UK
Українська
Перекладена версія

IV
PMML0600 rev.0 - 06/2022
Contents
01 General Information......................................................................................................11
02 Name of parts and dimensional data........................................................................19
03 Electrical data.................................................................................................................26
04 Working range ................................................................................................................31
05 Drain and water piping.................................................................................................41
06 Electrical and control settings.....................................................................................64
07 Commissioning..............................................................................................................97
08 Maintenance.................................................................................................................104

V
PMML0600 rev.0 - 06/2022
I
General Index
General Index
1. General Information ...........................................................................................................11
1.1 General information...................................................................................................12
1.2 Applied Symbols.........................................................................................................12
1.3 Product guide..............................................................................................................14
1.3.1 Classication of the units...............................................................................14
1.3.1.1 Monobloc system............................................................................14
1.3.1.2 Hydrosplit system - Outdoor unit.................................................14
1.3.1.3 Hydrosplit system - Indoor unit....................................................15
1.4 Product list...................................................................................................................16
1.4.1 Monobloc system.............................................................................................16
1.4.2 Hydrosplit system R32 ....................................................................................17
1.4.3 Hydrosplit system - Indoor unit ....................................................................17
1.4.4 Unit Controller Accessory...............................................................................18
2. Name of parts and dimensional data .............................................................................19
2.1 YUTAKI M R32 ..............................................................................................................20
2.1.1 RASM-(2/3)VRE..................................................................................................20
2.1.2 RASM-(4-7)(V)R1E .............................................................................................21
2.2 YUTAKI Hydrosplit R32 - RASM-(4-7)(V)WR1E.......................................................22
2.3 YUTAKI H - HWM-WE...................................................................................................23
2.4 YUTAKI H Combi - HWD-WE-220S............................................................................24
2.5 YUTAKI H Combi - HWD-WE-220S-K........................................................................25
3. Electrical data ......................................................................................................................26
3.1 Considerations............................................................................................................27

VI
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General Index
3.1.1 Monobloc system ............................................................................................28
3.1.2 Hydrosplit system - Outdoor unit .................................................................29
3.1.2.1 RAS-(4-7)(V)WR1E in combination with YUTAKI H, YUTAKI H
Combi ..................................................................................................29
3.1.3 Hydrosplit system - Indoor unit ....................................................................29
3.1.3.1 YUTAKI H ...........................................................................................29
3.1.3.2 YUTAKI H Combi ..............................................................................30
4. Working range......................................................................................................................31
4.1 Power supply working range....................................................................................32
4.2 Temperature working range.....................................................................................32
4.2.1 Space heating ...................................................................................................33
4.2.2 DHW....................................................................................................................34
4.2.3 Swimming pool heating ................................................................................. 35
4.2.4 Space cooling (Necessary cooling kit).........................................................35
4.3 R32 Hydraulic working range...................................................................................36
4.3.1 Hydraulic data ..................................................................................................36
4.3.2 Pump performance curves ............................................................................37
4.3.2.1 YUTAKI M R32 ...................................................................................37
4.3.2.2 YUTAKI Hydrosplit R32 + YUTAKI H...............................................39
4.3.2.3 YUTAKI Hydrosplit R32 + YUTAKI H Combi .................................40
5. Drain and water piping.......................................................................................................41
5.1 Water Drain Discharge Connection (Accessory)...................................................43
5.1.1 Connecting procedure....................................................................................43
5.2 Outdoor Unit Draining Operation ...........................................................................44
5.3 Indoor Unit Draining Operation...............................................................................44
5.3.1 Draining operation for YUTAKI H...................................................................44

VII
PMML0600 rev.0 - 06/2022
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General Index
5.3.2 Draining operation for YUTAKI H Combi......................................................45
5.4 YUTAKI Hydraulic Connections................................................................................46
5.4.1 Hydraulic Connections for YUTAKI M ...........................................................46
5.4.2 Hydraulic Connections for YUTAKI HYDROSPLIT and YUTAKI H.............46
5.4.3 Hydraulic Connections for YUTAKI HYDROSPLIT and YUTAKI H Combi 47
5.4.4 Parts name list ..................................................................................................47
5.5 Space heating and DHW for YUTAKI M / YUTAKI Hydrosplit...............................49
5.5.1 Additional hydraulic necessary elements for space heating ..................49
5.5.2 Additional hydraulic necessary elements for DHW...................................50
5.5.3 Additional hydraulic optional elements (For DHW)..................................52
5.5.4 Requirements and recommendations for the hydraulic circuit .............53
5.5.5 Anti-freezing protection for water circuit ....................................................54
5.5.6 Glycol as anti-freezing protection.................................................................54
5.5.7 Insulation...........................................................................................................56
5.5.8 Water lling .......................................................................................................56
5.5.9 Water quality.....................................................................................................58
5.6 Minimum water volume description ......................................................................60
5.7 Water piping ................................................................................................................62
5.7.1 Water piping length .........................................................................................62
5.7.2 Water piping size..............................................................................................62
5.8 Suspension of water piping......................................................................................63
6. Electrical and control settings..........................................................................................64
6.1 Optional unit wiring for accessories.......................................................................66
6.1.1 Summary of the terminal board connections............................................66
6.1.2 Input terminals (Default input functions) ...................................................70
6.2 Setting of DIP switches and RSW switches............................................................80

VIII
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General Index
6.2.1 Refrigerant cycle PCB......................................................................................83
6.2.1.1 DSW1 .................................................................................................83
6.2.1.2 DSW2..................................................................................................84
6.2.1.3 DSW3..................................................................................................85
6.2.1.4 DSW4 / RSW1....................................................................................86
6.2.1.5 DSW5..................................................................................................86
6.2.1.6 DSW6..................................................................................................87
6.2.1.7 DSW7..................................................................................................87
6.2.1.8 DSW301 ............................................................................................88
6.2.1.9 DSW302 ............................................................................................88
6.2.1.10 LED indication................................................................................89
6.2.2 Water cycle PCB................................................................................................90
6.2.2.1 DSW1..................................................................................................90
6.2.2.2 DSW2..................................................................................................90
6.2.2.3 DSW3..................................................................................................91
6.2.2.4 DSW4..................................................................................................91
6.2.2.5 DSW5..................................................................................................93
6.2.2.6 DSW6 (only if available)..................................................................93
6.2.2.7 DSW7..................................................................................................94
6.2.2.8 DSW15 & RSW2 ................................................................................94
6.2.2.9 DSW16 & RSW1 ................................................................................94
6.2.2.10 DSW18 .............................................................................................95
6.2.2.11 SSW1................................................................................................95
6.2.2.12 SSW2................................................................................................95
6.2.2.13 LED indication................................................................................96
7. Commissioning....................................................................................................................97

IX
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General Index
7.1 Before operation.........................................................................................................98
7.2 Preliminary check.......................................................................................................98
7.2.1 Checking the unit.............................................................................................98
7.2.2 Electrical checking...........................................................................................98
7.2.3 Hydraulic circuit checking (space heating and DHW)...............................99
7.2.4 Checking the refrigerant circuit.....................................................................99
7.2.5 Test and check................................................................................................100
7.3 Commissioning procedure.....................................................................................100
7.4 Test run / air purge...................................................................................................101
8. Maintenance.......................................................................................................................104
8.1 YUTAKI M R32 and YUTAKI Hydrosplit R32...........................................................105
8.1.1 RASM-(2-3)VRE................................................................................................105
8.1.1.1 Removing the service cover ........................................................105
8.1.1.2 Removing the upper cover ..........................................................106
8.1.1.3 Removing the front cover ............................................................107
8.1.1.4 Removing the rear cover..............................................................107
8.1.2 RASM-(4-7)(V)R(W)1E .....................................................................................109
8.1.2.1 Removing the service cover ........................................................109
8.1.2.2 Removing the upper cover ..........................................................110
8.1.2.3 Removing the rear cover..............................................................111
8.2 YUTAKI H.....................................................................................................................112
8.2.1 Removing the indoor unit service cover....................................................112
8.2.2 Removing indoor unit electrical box..........................................................113
8.2.3 Space heating pipes connection ................................................................114
8.2.3.1 Drain pipes connection................................................................114
8.2.4 Cover assembly ..............................................................................................115

X
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General Index
8.3 YUTAKI H Combi .......................................................................................................117
8.3.1 Removing the indoor unit covers ...............................................................117
8.3.2 Removing indoor unit electrical box..........................................................118
8.3.3 Space heating pipes connection ................................................................119
8.3.4 DHW pipes connection .................................................................................120
8.3.4.1 Drain pipes connection................................................................120