Daikin RKHWMX300C, RKHWMX500C, RKHWMXB300C, RKHWMXB500C Installation manuals

For certified companies

ROTEX  HPSU monobloc compact Installation and maintenance instructions

Solar storage tank with heating controller

For types

RKHWMX300C RKHWMX500C RKHWMXB300C RKHWMXB500C

Edition 09/2017

CE - DECLARATION-OF-CONFORMITY

CE - KONFORMITÄTSERKLÄRUNG

CE - DECLARATION-DE-CONFORMITE

CE - CONFORMITEITSVERKLARING

CE - DECLARACION-DE-CONFORMIDAD

CE - DICHIARAZIONE-DI-CONFORMITA

CE - ǻHȁȍȈǾ ȈȊȂȂȅȇĭȍȈǾȈ

CE - DECLARAÇÃO-DE-CONFORMIDADE

CE - ɁȺəȼɅȿɇɂȿ-Ɉ-ɋɈɈɌȼȿɌɋɌȼɂɂ

CE - OVERENSSTEMMELSESERKLÆRING

CE - FÖRSÄKRAN-OM-ÖVERENSTÄMMELSE

CE - ERKLÆRING OM-SAMSVAR

CE - ILMOITUS-YHDENMUKAISUUDESTA

CE - PROHLÁENÍ-O-SHODċ

CE - IZJAVA-O-USKLAĈENOSTI

CE - MEGFELELėSÉGI-NYILATKOZAT

CE - DEKLARACJA-ZGODNOĝCI

CE - DECLARAğIE-DE-CONFORMITATE

CE - IZJAVA O SKLADNOSTI

CE - VASTAVUSDEKLARATSIOON

CE - ȾȿɄɅȺɊȺɐɂə-ɁȺ-௛ɔɈɌȼȿɌɋɌȼɂȿ

CE - ATITIKTIES-DEKLARACIJA

CE - ATBILSTƮBAS-DEKLARƖCIJA

CE - VYHLÁSENIE-ZHODY

CE - UYUMLULUK-BEYANI

are in conformity with the following standard(s) or other normative document(s), provided that these are used in accordance with our

instructions:02der/den folgenden Norm(en) oder einem anderen Normdokument oder -dokumenten entspricht/entsprechen, unter der Voraussetzung,

daß sie gemäß unseren Anweisungen eingesetzt werden:03sont conformes à la/aux norme(s) ou autre(s) document(s) normatif(s), pour autant qu'ils soient utilisés conformément à nos instructions:04conform de volgende norm(en) of één of meer andere bindende documenten zijn, op voorwaarde dat ze worden gebruikt overeenkomstig

onze instructies:05están en conformidad con la(s) siguiente(s) norma(s) u otro(s) documento(s) normativo(s), siempre que sean utilizados de acuerdo con

nuestras instrucciones:

sono conformi al(i) seguente(i) standard(s) o altro(i) documento(i) a carattere normativo, a patto che vengano usati in conformità alle

nostre istruzioni:

İȓȞĮȚ ıȪȝĳȦȞĮ ȝİ ĲȠ(Į) ĮțȩȜȠȣșȠ(Į) ʌȡȩĲȣʌȠ(Į) Ȓ ȐȜȜȠ ȑȖȖȡĮĳȠ(Į) țĮȞȠȞȚıȝȫȞ, ȣʌȩ ĲȘȞ ʌȡȠȨʌȩșİıȘ ȩĲȚ ȤȡȘıȚȝȠʌȠȚȠȪȞĲĮȚ ıȪȝĳȦȞĮ

ȝİ ĲȚȢ ȠįȘȖȓİȢ ȝĮȢ:

estão em conformidade com a(s) seguinte(s) norma(s) ou outro(s) documento(s) normativo(s), desde que estes sejam utilizados de

acordo com as nossas instruções:09ɫɨɨɬɜɟɬɫɬɜɭɸɬ ɫɥɟɞɭɸɳɢɦ ɫɬɚɧɞɚɪɬɚɦ ɢɥɢ ɞɪɭɝɢɦ ɧɨɪɦɚɬɢɜɧɵɦ ɞɨɤɭɦɟɧɬɚɦ, ɩɪɢ ɭɫɥɨɜɢɢ ɢɯ ɢɫɩɨɥɶɡɨɜɚɧɢɹ ɫɨɝɥɚɫɧɨ ɧɚɲɢɦ

ɢɧɫɬɪɭɤɰɢɹɦ:

overholder følgende standard(er) eller andet/andre retningsgivende dokument(er), forudsat at disse anvendes i henhold til vore

instrukser:11respektive utrustning är utförd i överensstämmelse med och följer följande standard(er) eller andra normgivande dokument, under

förutsättning att användning sker i överensstämmelse med våra instruktioner:12respektive utstyr er i overensstemmelse med følgende standard(er) eller andre normgivende dokument(er), under forutssetning av at

disse brukes i henhold til våre instrukser:13vastaavat seuraavien standardien ja muiden ohjeellisten dokumenttien vaatimuksia edellyttäen, että niitä käytetään ohjeidemme

mukaisesti:14za pĜedpokladu, e jsou vyuívány v souladu s naimi pokyny, odpovídají následujícím normám nebo normativním dokumentĤm:15u skladu sa slijedeüim standardom(ima) ili drugim normativnim dokumentom(ima), uz uvjet da se oni koriste u skladu s naim uputama:

megfelelnek az alábbi szabvány(ok)nak vagy egyéb irányadó dokumentum(ok)nak, ha azokat elĘírás szerint használják:17speániają wymogi nastĊpujących norm i innych dokumentów normalizacyjnych, pod warunkiem Īe uĪywane są zgodnie z naszymi

instrukcjami:

sunt în conformitate cu următorul (următoarele) standard(e) sau alt(e) document(e) normativ(e), cu condiĠia ca acestea să fie utilizate în

conformitate cu instrucĠiunile noastre:19skladni z naslednjimi standardi in drugimi normativi, pod pogojem, da se uporabljajo v skladu z naimi navodili:20on vastavuses järgmis(t)e standardi(te)ga või teiste normatiivsete dokumentidega, kui neid kasutatakse vastavalt meie juhenditele:21ɫɴɨɬɜɟɬɫɬɜɚɬ ɧɚ ɫɥɟɞɧɢɬɟ ɫɬɚɧɞɚɪɬɢ ɢɥɢ ɞɪɭɝɢ ɧɨɪɦɚɬɢɜɧɢ ɞɨɤɭɦɟɧɬɢ, ɩɪɢ ɭɫɥɨɜɢɟ, ɱɟ ɫɟ ɢɡɩɨɥɡɜɚɬ ɫɴɝɥɚɫɧɨ ɧɚɲɢɬɟ

ɢɧɫɬɪɭɤɰɢɢ:

atitinka emiau nurodytus standartus ir (arba) kitus norminius dokumentus su sąlyga, kad yra naudojami pagal mǌsǐ nurodymus:23tad, ja lietoti atbilstoi raotƗja norƗdƯjumiem, atbilst sekojoiem standartiem un citiem normatƯviem dokumentiem:24sú v zhode s nasledovnou(ými) normou(ami) alebo iným(i) normatívnym(i) dokumentom(ami), za predpokladu, e sa pouívajú v súlade

s naim návodom:25ürünün, talimatlarmza göre kullanlmas koúuluyla aúa÷daki standartlar ve norm belirten belgelerle uyumludur:

Directives, as amended.02Direktiven, gemäß Änderung.03Directives, telles que modifiées.04Richtlijnen, zoals geamendeerd.05Directivas, según lo enmendado.06Direttive, come da modifica.07ȅįȘȖȚȫȞ, ȩʌȦȢ ȑȤȠȣȞ ĲȡȠʌȠʌȠȚȘșİȓ.08Directivas, conforme alteração em.09Ⱦɢɪɟɤɬɢɜ ɫɨ ɜɫɟɦɢ ɩɨɩɪɚɜɤɚɦɢ.

Direktiver, med senere ændringer.11Direktiv, med företagna ändringar.12Direktiver, med foretatte endringer.13Direktiivejä, sellaisina kuin ne ovat muutettuina.14v platném znČní.15Smjernice, kako je izmijenjeno.16irányelv(ek) és módosításaik rendelkezéseit

z póĨniejszymi poprawkami.18Directivelor, cu amendamentele respective.

Direktive z vsemi spremembami.20Direktiivid koos muudatustega.21Ⱦɢɪɟɤɬɢɜɢ, ɫ ɬɟɯɧɢɬɟ ɢɡɦɟɧɟɧɢɹ.22Direktyvose su papildymais.23DirektƯvƗs un to papildinƗjumos.24Smernice, v platnom znení.25Deۜiútirilmiú halleriyle Yönetmelikler.

following the provisions of:02gemäß den Vorschriften der:03conformément aux stipulations des:04overeenkomstig de bepalingen van:05siguiendo las disposiciones de:06secondo le prescrizioni per:07ȝİ ĲȒȡȘıȘ ĲȦȞ įȚĮĲȐȟİȦȞ ĲȦȞ:08de acordo com o previsto em:09ɜ ɫɨɨɬɜɟɬɫɬɜɢɢ ɫ ɩɨɥɨɠɟɧɢɹɦɢ:

under iagttagelse af bestemmelserne i:11enligt villkoren i:12gitt i henhold til bestemmelsene i:13noudattaen määräyksiä:14za dodrení ustanovení pĜedpisu:15prema odredbama:16követi a(z):17zgodnie z postanowieniami Dyrektyw:18în urma prevederilor:

ob upotevanju doloþb:20vastavalt nõuetele:21ɫɥɟɞɜɚɣɤɢ ɤɥɚɭɡɢɬɟ ɧɚ:22laikantis nuostatǐ, pateikiamǐ:23ievƝrojot prasƯbas, kas noteiktas:24odriavajúc ustanovenia:25bunun koúullarna uygun olarak:

527(;+HDWLQJ6\VWHPV*PE+

a

declares under its sole responsibility that the equipment to which this declaration relates:

d

erklärt auf seine alleinige Verantwortung daß die Ausrüstung für die diese Erklärung bestimmt ist:

f

déclare sous sa seule responsabilité que l'équipement visé par la présente déclaration:

l

verklaart hierbij op eigen exclusieve verantwoordelijkheid dat de apparatuur waarop deze verklaring betrekking heeft:

e

declara bajo su única responsabilidad que el equipo al que hace referencia la declaración:

i

dichiara sotto la propria responsabilità che gli apparecchi a cui è riferita questa dichiarazione:

g

įȘȜȫȞİȚ ȝİ ĮʌȠțȜİȚıĲȚțȒ ĲȘȢ İȣșȪȞȘ ȩĲȚ Ƞ İȟȠʌȜȚıȝȩȢ ıĲȠȞ ȠʌȠȓȠ ĮȞĮĳȑȡİĲĮȚ Ș ʌĮȡȠȪı Į įȒȜȦıȘ:

p

declara sob sua exclusiva responsabilidade que os equipamentos a que esta declaração se refere:

ɡɚɹɜɥɹɟɬ, ɢɫɤɥɸɱɢɬɟɥɶɧɨ ɩɨɞ ɫɜɨɸ ɨɬɜɟɬɫɬɜɟɧɧɨɫɬɶ, ɱɬɨ

ɨɛɨɪɭɞɨɜɚɧɢɟ,

ɤ ɤɨɬɨɪɨɦ

ɨɬɧɨɫɢɬɫɹ ɧɚɫɬɨɹɳɟɟ ɡɚɹɜɥɟɧɢɟ:

erklærer under eneansvarlig, at udstyret, som er omfattet af denne erklæring:

deklarerar i egenskap av huvudansvarig, att utrustningen som berörs av denna deklaration innebär att:

erklærer et fullstendig ansvar for at det utstyr som berøres av denne deklarasjon innebærer at:

ilmoittaa yksinomaan omalla vastuullaan, että tämän ilmoituksen tarkoittamat laitteet:

prohlauje ve své plné odpovČdnosti, e zaĜízení, k nČmu se toto prohláení vztahuje:

izjavljuje pod iskljuþivo vlastitom odgovornoüu da oprema na koju se ova izjava odnosi:

teljes felelĘssége tudatában kijelenti, hogy a berendezések, melyekre e nyilatkozat vonatkozik:

deklaruje na wáasną i wyáączną odpowiedzialnoĞü, Īe urządzenia, których ta deklaracja dotyczy:

declară pe proprie răspundere că echipamentele la care se referă această declaraĠie:

z vso odgovornostjo izjavlja, da je oprema naprav, na katero se izjava nanaa:

kinnitab oma täielikul vastutusel, et käesoleva deklaratsiooni alla kuuluv varustus:

ɞɟɤɥɚɪɢɪɚ ɧɚ ɫɜɨɹ ɨɬɝɨɜɨɪɧɨɫɬ, ɱɟ ɨɛɨɪɭɞɜɚɧɟɬɨ, ɡɚ ɤɨeɬɨ ɫɟ ɨɬɧɚɫɹ ɬɚɡɢ ɞɟɤɥɚɪɚɰɢɹ:

visika savo atsakomybe skelbia, kad Ƴranga, kuriai taikoma i deklaracija:

ar pilnu atbildƯbu apliecina, ka tƗlƗk aprakstƯtƗs iekƗrtas, uz kurƗm attiecas Ư deklarƗcija:

vyhlasuje na vlastnú zodpovednosĢ, e zariadenie, na ktoré sa vzĢahuje toto vyhlásenie:

tamamen kendi sorumluluۜunda olmak üzere bu bildirinin ilgili olduۜu donanmnn aúaۜdaki gibi olduۜunu beyan eder:

EN60335-2-40,

EN55014-1: 2006 (+A1:200$),

EN55014-2: 1997 (+A1: 2001 +A2: 200),

EN61000-3-2: 20,

EN61000-3-3: 20,

EN61000-6-: 2007 (+A1: 2011),

Low Voltage 20/5/E8

Electromagnetic Compatibility 204//E8

(FRGHVLJQ(&

5.+:0;&$5.+:0;%&$5.+:0;&$5.+:0;%&$



(1

(1

(1

&RPPLVVLRQUHJXODWLRQ

&RPPLVVLRQUHJXODWLRQ

*HRUJ%OPHO

0DQDJLQJ'LUHFWRU

*JOLQJHQWKRI$XJXVW

List of contents

1 General Information . . . . . . . . . . . . . . . . . . . . 4

1.1 Refer to the manual . . . . . . . . . . . . . . . . . . . . . . .4

1.2 Warranty conditions . . . . . . . . . . . . . . . . . . . . . . .4

2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.1 Warnings and symbols . . . . . . . . . . . . . . . . . . . . .5

2.1.1 Meaning of the warnings . . . . . . . . . . . . . . . . . . . . . .5

2.1.2 Validity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

2.1.3 Order number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

2.1.4 Handling instructions. . . . . . . . . . . . . . . . . . . . . . . . .5

2.2 Avoiding danger . . . . . . . . . . . . . . . . . . . . . . . . . .5

2.3 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

2.4 Instructions for operating safety . . . . . . . . . . . . . .6

2.4.1 Before working on the hydraulic system . . . . . . . . . .6

2.4.2 Electrical installation . . . . . . . . . . . . . . . . . . . . . . . . .6

2.4.3 Site of installation . . . . . . . . . . . . . . . . . . . . . . . . . . .7

2.4.4 Heating system and sanitary connection. . . . . . . . . .7

2.4.5 Requirements for the heating water . . . . . . . . . . . . .7

2.4.6 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

2.4.7 Instruct the owner . . . . . . . . . . . . . . . . . . . . . . . . . . .7

3 Product description . . . . . . . . . . . . . . . . . . . .8

3.1 Design and components . . . . . . . . . . . . . . . . . . . .8

3.1.1 Exterior of the device and interior structure

RKHWMX(B)300C. . . . . . . . . . . . . . . . . . . . . . . . . . .8

3.1.2 Exterior of the device and interior structure

RKHWMX(B)500C. . . . . . . . . . . . . . . . . . . . . . . . . . .9

3.1.3 Upper side of the device . . . . . . . . . . . . . . . . . . . . .10

4 Set-up and installation . . . . . . . . . . . . . . . . .12

4.1 Dimensions and connections . . . . . . . . . . . . . . .13

4.1.1 RKHWMX(B)300C. . . . . . . . . . . . . . . . . . . . . . . . . .13

4.1.2 RKHWMX(B)500C. . . . . . . . . . . . . . . . . . . . . . . . . .14

4.1.3 Scope of delivery. . . . . . . . . . . . . . . . . . . . . . . . . . .15

4.2 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

4.3 Removing the cover and thermal insulation . . . .17

4.4 Water connection . . . . . . . . . . . . . . . . . . . . . . . .18

4.4.1 Aligning the connections of the heating supply and

return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

4.4.2 Connecting hydraulic lines . . . . . . . . . . . . . . . . . . .20

4.4.3 Installation of the DB connection kit ( 14 15 90) . . .21

4.4.4 Installation of the P connection kit ( 14 15 89) . . . .21

4.5 Electrical connection . . . . . . . . . . . . . . . . . . . . . .22

4.5.1 ROTEX HPSU monobloc compact overall c

onnection diagram. . . . . . . . . . . . . . . . . . . . . . . . . .23

4.5.2 Position of the printed circuit boards . . . . . . . . . . . .24

4.5.3 RTX-EHS printed circuit board connection 

diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

4.5.4 RoCon BM2C printed circuit board connection

diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

4.5.5 Mains connection 

ROTEX HPSU monobloc compact . . . . . . . . . . . . .25

4.5.6 Opening the controller housing and establishing

electrical connections . . . . . . . . . . . . . . . . . . . . . . .26

4.5.7 Connecting the heat pump outdoor unit . . . . . . . . .26

4.5.8 Connecting an external switching contact . . . . . . . .26

4.5.9 External requirement request (EBA) . . . . . . . . . . . .27

4.5.10 Connecting an electric ROTEX backup heater 

(BUxx) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

4.5.11 Connecting an external heat generator . . . . . . . . . .29

4.5.12 Connecting a ROTEX room thermostat. . . . . . . . . .30

4.5.13 Connecting optional ROTEX RoCon system

components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

4.5.14 Connecting a ROTEX HP convector . . . . . . . . . . . .31

4.5.15 Connecting switching contacts (AUX outputs) . . . .31

4.5.16 Off-peak mains connection (HT/NT) . . . . . . . . . . . .32

4.5.17 Connecting an intelligent controller 

(Smart Grid - SG). . . . . . . . . . . . . . . . . . . . . . . . . . 32

4.5.18 Symbols and key names for connection and wiring

diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

4.6 Filling the system on the water side . . . . . . . . . . 34

4.6.1 Checking the water quality and adjusting the 

pressure gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

4.6.2 Filling the hot water heat exchanger . . . . . . . . . . . 34

4.6.3 Filling the storage tank . . . . . . . . . . . . . . . . . . . . . 34

4.6.4 Filling the heating system . . . . . . . . . . . . . . . . . . . 34

5 Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.1 Initial start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.1.1 Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.1.2 Starting the device. . . . . . . . . . . . . . . . . . . . . . . . . 35

5.1.3 Setting commissioning parameters . . . . . . . . . . . . 36

5.1.4 Bleeding the hydraulic system . . . . . . . . . . . . . . . . 36

5.1.5 Checking the minimum flow. . . . . . . . . . . . . . . . . . 37

5.1.6 Setting the parameter Screed Program

(only when required) . . . . . . . . . . . . . . . . . . . . . . . 37

5.2 Re-commissioning . . . . . . . . . . . . . . . . . . . . . . . 38

5.2.1 Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

5.2.2 Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

6 Taking out of operation . . . . . . . . . . . . . . . . 39

6.1 Temporary shutdown . . . . . . . . . . . . . . . . . . . . . 39

6.1.1 Draining the storage tank . . . . . . . . . . . . . . . . . . . 39

6.1.2 Draining the heating circuit and hot water circuit . . 40

6.2 Final shutdown. . . . . . . . . . . . . . . . . . . . . . . . . . 41

7 Service and maintenance. . . . . . . . . . . . . . . 42

7.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

7.2 Activities to be performed annually . . . . . . . . . . 42

7.3 Filling, topping up the storage tank . . . . . . . . . . 43

7.4 Filling, topping up the heating system . . . . . . . . 44

7.4.1 Protecting the water circuit against freezing . . . . . 44

7.4.2 Filling, topping up steps . . . . . . . . . . . . . . . . . . . . . 45

8 Errors, malfunctions and messages. . . . . . 47

8.1 Recognising errors, correcting malfunctions . . . 47

8.1.1 Current error display . . . . . . . . . . . . . . . . . . . . . . . 47

8.1.2 Reading out the protocol . . . . . . . . . . . . . . . . . . . . 47

8.1.3 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

8.2 Malfunctions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

8.3 Error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

8.4 Control and configuration of DIP switches . . . . . 60

8.5 Emergency operation. . . . . . . . . . . . . . . . . . . . . 60

9 Hydraulic system connection . . . . . . . . . . . 61

10 Technical data. . . . . . . . . . . . . . . . . . . . . . . . 63

10.1 Equipment data . . . . . . . . . . . . . . . . . . . . . . . . . 63

10.1.1 RKHWMX(B)300C. . . . . . . . . . . . . . . . . . . . . . . . . 63

10.1.2 RKHWMX(B)500C. . . . . . . . . . . . . . . . . . . . . . . . . 65

10.2 Characteristic lines. . . . . . . . . . . . . . . . . . . . . . . 67

10.2.1 Sensor characteristic lines. . . . . . . . . . . . . . . . . . . 67

10.3 Tightening torque . . . . . . . . . . . . . . . . . . . . . . . 67

10.4 Circuit diagram 

ROTEX HPSU monobloc compact . . . . . . . . . . 68

11 Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

12 List of keywords . . . . . . . . . . . . . . . . . . . . . . 71

FA ROTEX HPSU monobloc compact • 09/2017

1 x General Information

1 General Information

1.1 Refer to the manual

Original Operating Instructions

These instructions are a >> translation of the original version << in your language.

Please read this manual carefully and thoroughly before proceeding with the installation or modification of the heating system.

Target Group

These instructions are aimed at people who are authorised and who have successfully completed a qualifying technical or skilled manual training program for the particular work to be carried out and who have participated in professional development seminars recognised by the appropriate responsible authority. This, in par ticular, includes heating specialists and climate control technicians who have experience, as a result of their technical training and their knowledge of the subject, of proper and appropriate installation and maintenance of heating, climate control and cool ing installations and heat pumps.

This manual provides all the necessary information for installation, start-up and maintenance, as well as basic information on operation and settings. All parameters needed for trouble-free operation have been configured at the factory. Please see the attached documents for a detailed description of operation and control.

1.2 Warranty conditions

The legal guarantee conditions fundamentally apply. Our warranty conditions beyond that can be found online on your sales presentative's webpage.

Relevant documents

– ROTEX HPSU monobloc compact:

– Operating instructions for the user/owner – Commissioning checklist

– the operating manual for the user/owner – RoCon mb controller operating instructions – Outdoor unit for ROTEX HPSU monobloc compact: the

respective installation and operating instructions. – On connection of a ROTEX solar system: the respective

installation and operating instructions. – On connection of a ROTEX HP convector: the respective

installation and operating instructions. – On connection of a control component available as an acces-

sory (room station, mixer module, etc.): the associated instal-

lation and operating instructions.

The guides are included in the scope of supply for the individual units.

FA ROTEX HPSU monobloc compact • 09/2017

2Safety

2 x Safety

2.1 Warnings and symbols

2.1.1 Meaning of the warnings

Warnings in this manual are classified according

into their severity and probability of occurrence.

DANGER!

Draws attention to imminent danger.

Disregarding this warning can lead to serious injury or death.

WARNING!

Indicates a potentially dangerous situation.

Disregarding this warning may result in serious physical injury or death.

2.1.2 Validity

Some information in this manual has limited validity. The validity is highlighted by a symbol.

Heat pump outdoor unit

Heat pump interior unit HPSU monobloc compact

HP convector

Observe specified tightening torque (see chap. 10.3 "Tightening torque")

Only applicable to the unpressurised solar system (DrainBack).

Only applicable for the pressurised solar system.

2.1.3 Order number

References to order numbers can be recognised from the goods symbol .

CAUTION!

Indicates a situation which may cause possible damage.

Disregarding this warning may cause damage to property and the environment.

This symbol identifies user tips and particularly useful information, but not warnings or hazards.

Special warning signs

Some types of danger are represented by

special symbols:

Electric current

Risk of burning or scalding

Risk of environmental damage

Danger of local freezing up

2.1.4 Handling instructions

● Handling instructions are shown as a list. Actions for which the sequential order must be maintained are numbered.



Results of actions are identified with an arrow.

Entry into a setting procedure

Exit from a setting procedure

2.2 Avoiding danger

The ROTEX HPSU monobloc compact is built according to the state-of-the-art and the recognised technical rules. However, improper use may result in serious physical injuries or death, as well as property damage.

To avoid hazards, only install and operate the ROTEX HPSU monobloc compact:

– as stipulated and in perfect condition, – with an awareness of safety and the hazards

involved.

Health impairing or irritant materials

Prescribed temperature for continuous use

Danger of explosion

FA ROTEX HPSU monobloc compact • 09/2017

This assumes knowledge and use of the contents of this manual, of the relevant accident prevention regulations as well as the recognised safety-related and occupational health rules.

2 x Safety

WARNING!

This equipment must only be used by children aged 8 and above and by persons with restricted physical, sensory or mental capabilities or with a lack of experience and knowledge, if they are under supervision or if they have been instructed in the safe use of the equipment and understand the dangers arising therefrom. Children must not play with the equipment. Cleaning or user maintenance must not be carried out by children without supervision.

2.3 Intended use

The ROTEX HPSU monobloc compact must only be used to prepare hot water, as a room heating system and as a room cooling system.

The ROTEX HPSU monobloc compact must only be installed, connected and operated according to the data in these instructions.

Only the use of a suitable outdoor unit approved by ROTEX is permitted. The following combinations are permissible in this respect:

Indoor unit Outdoor unit

RKHWMX300C

RKHWMX500C RKHWMXB300C RKHWMXB500C

* Not all the equipment mentioned here is offered in some countries because of

the various different country-specific connection conditions.

Tab. 2-1 Permissible combinations of ROTEX HPSU monobloc

compact solar storage tanks with heating controller and ROTEX HPSU monobloc compact outdoor units

Any other use outside the intended use is considered as improper. The operator alone shall bear responsibility for any resulting damage.

Intended use also includes compliance with the maintenance and service conditions. Replacement parts must at least satisfy the technical requirements defined by the manufacturer. This is the case, for example, with original spare parts.

2.4 Instructions for operating safety

2.4.1 Before working on the hydraulic system

RBLQ05C2V3 RBLQ07C2V3

who have successfully completed qualifying technical or vocational training for the respective activity and who have taken part in advanced training sessions recognised by the relevant responsible authority. This, in particular, includes heating specialists and climate control technicians who have experience, as a result of their technical training and their knowledge of the subject, of proper and appropriate installation and maintenance of heating, climate control and cooling installations and heat pumps.

● Switch off the external main switch during all work on the ROTEX HPSU monobloc compact, and secure it to prevent unintentional activation.

● Seals must not be damaged or removed.

● Make sure that the safety valves comply with

the requirements of EN 12828 when connecting on the heating side, and with the requirements of EN 12897 when connecting on the domestic water side.

● Only original ROTEX replacement parts may be used.

● When working on the hydraulics, you must first drain the water or release the pressure using the internal KFE valve. Otherwise hot water can jet out under pressure and result in injury.

2.4.2 Electrical installation

● Electrical installation must only be carried out by specialist personnel with electrical engineering qualifications and subject to compliance with the valid electrical engineering guidelines as well as the regulations of the responsible utility company (EVU).

● Compare the mains voltage (~230 V, 50 Hz or ~400 V, 50 Hz) indicated on the type plate with the supply voltage before connecting to the mains.

● Before beginning work on live parts, disconnect all of the systems circuits from the power supply (switch off main switch, disconnect fuse) and secure against unintentional restart.

● Equipment covers and service panels must be replaced as soon as the work is completed.

● Work on the ROTEX HPSU monobloc compact (such as e.g. installation, connection and initial commissioning) must only be carried out by persons who are authorised,

FA ROTEX HPSU monobloc compact • 09/2017

2 x Safety

2.4.3 Site of installation

For safe and fault-free operation, the installation location of the ROTEX HPSU monobloc compact must meet certain criteria. Information on this can be found in chap. 4.2.

Information on the installation site of other components can be found in the associated documentation supplied with them.

2.4.4 Heating system and sanitary

connection

● Create a heating system according to the

safety requirements of EN 12828.

● With a sanitary connection you must comply

with – EN 1717 – Protection against pollution of

potable water installations and general requirements of devices to prevent pollution by backflow

– EN 806 – Specifications for installations

inside buildings conveying water for human consumption

– and, in addition, the country-specific legal

regulations.

The connection of a solar installation, an electric heating rod or an alternative heat generator may cause the storage temperature to exceed 60 °C.

● Scalding protection (e.g. VTA32 15 60 15

+ Screw set 1" 15 60 16) must therefore be fitted during installation.

If the ROTEX HPSU monobloc compact is connected to a heating system with steel pipes, radiators or non-diffusion-proof floor heating pipes, sludge and swarf can enter the hot water storage tank and cause blockages, local overheating or corrosion damage.

● To prevent possible damage, fit a dirt filter or

sludge separator into the heating return flow of the system. –SAS 1 ( 15 60 21)

● The dirt filter must be cleaned at regular

intervals.

2.4.5 Requirements for the heating water

Observe the relevant regulations of technology to prevent creation of corrosion products and deposits.

Minimum requirements regarding the quality of filling and supplementary water: – Water hardness (calcium and magnesium,

calculated as calcium carbonate):

≤ 3 mmol/l – Conductivity: ≤ 1500 (ideal: ≤ 100) μS/cm – Chloride: ≤ 250 mg/l – Sulphate: ≤ 250 mg/l – pH-values (heating water): 6.5 - 8.5

Using filling water and top-up water which does not meet the stated quality requirements can cause a considerably reduced service life of the equipment. The responsibility for this lies solely with the operator.

2.4.6 Operation

The ROTEX HPSU monobloc compact:

● Do not operate until all installation and connection work is completed.

● Only operate with a completely full storage tank (Level indicator) and heating circuit.

● Operate at a maximum pressure of 3 bar.

● Only connect with a pressure reducer on the

external water supply (supply line).

● only operate if the protective cover is installed.

The specified servicing intervals should be adhered to and inspection work must be carried out.

2.4.7 Instruct the owner

● Before you hand over the ROTEX HPSU monobloc compact, explain to the user how to operate and check the system.

● Hand over the technical documentation (this document and all supporting documents) to the user and advise him that these documents must be made available at all times and be stored in the immediate vicinity of the unit.

● Document the handover by filling out the installation and instruction forms together with the owner and sign them.

FA ROTEX HPSU monobloc compact • 09/2017

3 x Product description

30 12

3UV

DHW

RoCon B1

3UVB1

3UV DHW

3132

3UVB1

24 / 11

DHW

3UV DHW

3UVB1

MAG

V,BH

3 Product description

3.1 Design and components

3.1.1 Exterior of the device and interior structure RKHWMX(B)300C

Fig. 3-1 RKHWMX(B)300C design and components (exterior view and interior structure)

Key names, see tab. 3-1



FA ROTEX HPSU monobloc compact • 09/2017

3.1.2 Exterior of the device and interior structure RKHWMX(B)500C

3UV

DHW

RoCon B1

3UVB1

330

23 2928

DHW

53132

24 / 11

3UV DHW

12627

3UVB1

3UV DHW

3UVB1

MAG

V,BH

3 x Product description

Fig. 3-2 RKHWMX(B)500C design and components (exterior view and interior structure)

Key names, see tab. 3-1



FA ROTEX HPSU monobloc compact • 09/2017

3 x Product description

33 33

(34)

3UV DHW

3UVB1

1 3UV DHWDS4023 35 3830 SV

39 19

3UV DHW

V,BH

33231

3.1.3 Upper side of the device

Fig. 3-3 RKHWMX(300/500)C design and components

(upper side of the device)



FA ROTEX HPSU monobloc compact • 09/2017

3 x Product description

1 Solar feed or connection for further

heat source (1" IG) 2 Cold water connection (1" AG) 3 Hot water (1" AG) 4 Heating feed (1" AG)* 5 Heating return flow (1" AG)* 7a Recommended accessories:

non-return valves (2x), 16 50 70 8 Automatic bleeder 9 Storage tank (double walled jacket made

of polypropylene with PUR hard foam heat

insulation) 10 Filling and draining connection or

solar return flow connection 11 Mount for solar controller or handle 12 Heat exchanger (stainless steel) for do-

mestic hot water heating

13 Heat exchanger (stainless steel) for stor-

age tank charging and heating support

14 Heat exchanger (stainless steel) for pres-

surised solar system charging (type …(B) only)

15 Connection for optional electric backup

heater BUxx (R 16 Solar - inflow layering pipe 17 Fill level indicator (storage tank water)

1½" IG)



18 Optional: electric backup heater

(BUxx)

19 Sensor immersion sleeve for storage tank

temperature sensor t 20 Pressure-free storage tank water 21 Solar zone 22 Hot water zone 23 Safety overflow connection 24 Mount for handle 25 Rating plate 26 Cover 27 Solar return flow 28 Solar feed (3/4" IG + 1" AG)

(type …(B) only) 29 Solar return flow (3/4" IG + 1" AG)

(type …(B) only) 30 Discharge fitting cover 31 Outdoor unit water inlet connection

(1"

AG)*

32 Outdoor unit water outlet connection

(1"

IG)* 33 Vent valve (manual) 34 Ball cock (heating circuit)* 35 Combined filling and draining valve (heat-

ing circuit) 38 Diaphragm expansion vessel connection 39 Controller housing with electr. connector

block 40 Holding burls for protective cover 41 RPS4



Optional: ROTEX solar control and

pump unit

DHW



3UVB1



3-way switch valve (internal heat generator circuit)

3UV DHW

DS Pressure sensor MAG

SV Safety pressure relief valve (heating cir-

DHW

V, BH

RoCon B1

AG External thread IG Internal thread * Ball cock (1" IG) is supplied.



3-way switch valve (hot water / heating)



Diaphragm expansion vessel (optional)

cuit)



Storage tank temperature sensor



Backup heater feed temperature sensor



ROTEX HPSU monobloc compact controller control panel

Safety devices Observe tightening torque!

Tab. 3-1 Legend for fig. 3-1 to fig. 3-3

FA ROTEX HPSU monobloc compact • 09/2017

4 x Set-up and installation

4 Set-up and installation

WARNING!

Cooling systems (heating pumps), climate control systems and heating devices that have been set up and installed incorrectly can both endanger life and health of people and be impaired in their function.

Work on the ROTEX HPSU monobloc compact (such as e.g. installation, repair, connection and initial commissioning) must only be carried out by persons who are authorised, who have successfully completed qualifying technical or vocational training for the respective activity and who have taken part in advanced training sessions recognised by the relevant responsible authority. This especially includes heating specialists and specialist electricians, who have experience in the proper installation and maintenance of heating systems due to their technical training and special- ist knowledge.

FA ROTEX HPSU monobloc compact • 09/2017

4.1 Dimensions and connections

4.1.1 RKHWMX(B)300C

4 x Set-up and installation

1 Solar inflow 2 Cold water 3 Hot water 4 Heating flow 5 Heating return flow 6 Outdoor unit water outlet connection

Fig. 4-1 RKHWMX(B)300C connections and dimensions

FA ROTEX HPSU monobloc compact • 09/2017

7 Outdoor unit water inlet connection 8 Solar feed (type …(B) only) 9 Solar return (type …(B) only)

A Front BRear

4 x Set-up and installation

4.1.2 RKHWMX(B)500C

1 Solar inflow 2Cold water 3 Hot water 4 Heating flow 5 Heating return flow 6 Outdoor unit water outlet connection

Fig. 4-2 RKHWMX(B)500C connections and dimensions

7 Outdoor unit water inlet connection 8 Solar feed (type …(B) only) 9 Solar return (type …(B) only)

AFront B Rear

FA ROTEX HPSU monobloc compact • 09/2017

4 x Set-up and installation

4.1.3 Scope of delivery

– ROTEX HPSU monobloc compact – Bag of accessories (see fig. 4-3)

4.2 Installation

CAUTION!

● Only install the ROTEX HPSU monobloc compact if a sufficient ground carrying capacity of 1050 kg/m² plus safety margin is ensured. The ground must be flat and level.

● Outdoor installation is not permissible.

● Installation in an explosion-risk environment

is not permissible.

● The electronic controller must never be exposed to the effects of weather.

● The storage tank may not be exposed to continuous direct sunlight, as the UV radi

ation and the effects of the weather will damage the plastic.

● The ROTEX HPSU monobloc compact must be installed protected from frost.

● Make sure that the supply company does not provide corrosive domestic water.

– Suitable water treatment may be

required.

A Handles (only required for

transport) B Cover screen C Hose connecting piece for

safety overflow D Spanner

Fig. 4-3 Contents of bag of accessories

EBall cock F Flat seal GO-ring H Cable tie I Plug bracket J Venting tube K Cover drain hose

WARNING!

The plastic wall of the storage tank of the ROTEX HPSU monobloc compact can melt under the effects of external heat (>80 °C) and, in the extreme case, can catch fire.

● Only install the ROTEX HPSU monobloc compact with a minimum distance of 1 other heat sources (>80

°C) (e.g. electrical

m to

heater, oil heater, chimney) and the material to be combusted.

FA ROTEX HPSU monobloc compact • 09/2017

4 x Set-up and installation

CAUTION!

If the ROTEX HPSU monobloc compact is not installed a sufficient distance below the flat solar panels (the top edge of the storage tank is higher than the bottom edge of the solar panels), the unpressurised solar system in the outdoor area will not be able to drain completely.

● Install the ROTEX HPSU monobloc compact sufficiently low at the flat solar panels (observe minimum gradient in the solar connection lines) in the case of a DrainBack solar connection.

● Remove packing and dispose of it in an environment-friendly manner.

● Pull off the cover screens (fig. 4-4, item B) from the storage tank and unscrew the threaded fittings (fig. 4-4, item F) from the openings at which the handles are to be fitted (fig. 3-1 to fig. 3-2, item 24).

● Screw the handles (fig. 4-4, item A) into the now uncovered threaded holes.

A Handle B Cover screen

Fig. 4-4 Installing the handles

● Install the ROTEX HPSU monobloc compact at the installation site. – Recommended clearances (fig. 4-5):

From the wall: (s1) ≥ 100 mm, (s2) ≥ 500 mm. From the ceiling (X): ≥ 1200 mm, at least 480 mm.

– Transport the ROTEX HPSU monobloc compact using

the handles.

– When setting up the unit in a cabinet, behind panels or in

other restricted conditions, sufficient ventilation (e.g., using ventilation gratings) must be ensured.

● If required, install the optional backup heater (BUxx) in the ROTEX HPSU monobloc compact ( Observe the installation and operating instructions enclosed with the accessories (

FA ROTEX HPSU monobloc compact • 09/2017

F Threaded piece

fig. 4-5).

tightening torque, see chap. 10.3).

4 x Set-up and installation

1200 mm

ኢ

>80°C

<1000 mm

max. 10 Nm

≥ 2050

4.3 Removing the cover and thermal insulation

● Raise the cover at the rear and remove forwards.

Fig. 4-6 Remove the protective cover

If the installation conditions require the hydraulic connection directly upwards, the cover can be cut out along the broken line.

Fig. 4-5 Installation (shown on RKHWMX(B)500C with installation of

the optional backup heater)

Fig. 4-7 Producing the cover cut-out

Fig. 4-8 ROTEX HPSU monobloc compact without protective cover

FA ROTEX HPSU monobloc compact • 09/2017

4 x Set-up and installation

CAUTION!

The thermal insulation (fig. 4-8, item A) consists of pressure-sensitive EPP moulded parts that can be easily damaged if not handled correctly.

● Only remove the thermal insulation in the order stated below and in the stated directions.

● Do not use force.

● Do not use tools.

● Remove the thermal insulation in the following order:

– Pull the side insulating element off horizontally (fig. 4-9,

item A).

– Pull the rear insulating element off horizontally (fig. 4-9,

item B).

– Pull the front insulating element off horizontally (fig. 4-9,

item C).

Fig. 4-9 Removing the top thermal insulation

● As required: Remove the bottom thermal insulation in the fol- lowing order: – Pull the side insulating element off vertically (fig. 4-10,

item A).

– Pull the rear insulating element off vertically (fig. 4-10,

item B).

Fig. 4-10 Removing the bottom thermal insulation

The thermal insulation is installed in reverse order.

4.4 Water connection

CAUTION!

If the ROTEX HPSU monobloc compact is connected to a heating system with steel pipes, radiators or non-diffusion-proof floor heating pipes, slurry and swarf could enter the hot water storage tank and cause blockages, local over- heating or corrosion.

● Flush the feed pipes before filling the heat exchanger.

● Rinse out the heat distribution network (in the existing heating system).

● Install a dirt filter or sludge separator in the heating return flow (see chap. 2.4.4).

FA ROTEX HPSU monobloc compact • 09/2017

CAUTION!

If the ROTEX HPSU monobloc compact is connected to a cold water supply line in which steel pipes are used, swarf can enter the stainless steel corrugated tube heat exchanger and remain there. This can lead to contact corro- sion damage and subsequently to leakage.

● Flush the feed pipes before filling the heat exchanger.

● Install a dirt filter in the cold water supply (see chap. 2.4.4).

RKHWMXB300C AND RKHWMXB500C ONLY

CAUTION!

If the heat exchanger for pressurised solar system charging (

fig. 4-1 / fig. 4-2, items 8+9) is connected to an external heater (e.g. woodburning boiler), the ROTEX HPSU monobloc compact can be damaged or destroyed due to an excessively high feed temperature at these connections.

4 x Set-up and installation

4.4.1 Aligning the connections of the heating supply and return

The connections of the heating supply and return can be directed upwards or backwards in order to adapt it optimally to the struc tural conditions of the installation site.

The device is supplied with upwards aligned connections as standard. The following conversion steps are required in order to direct the connections to the rear out of the device:

● Remove the protective cover and top thermal insulation (see

chap. 4.3).

● The inflow temperature of the external heat- ing unit should be limited to max. 95 °C.

In accordance with EN 12828 a safety valve that limits the maximum permissible operating pressure in the heating system must be installed on or in the immediate

vicinity of the heat generator. There may not be any hydraulic blocking elements between the heat generator and the safety valve.

Any steam or heating water which may escape must be drained by a suitable blow-off line with constant gradient in a frost-pro tected, safe and observable manner.

A diaphragm expansion vessel suitably sized and preset for the heating system must be connected to the ROTEX HPSU mono bloc compact. There may not be any hydraulic blocking elements between the heat generator and the diaphragm expansion vessel.

ROTEX recommends installing a mechanical pressure gauge for filling the heating system.

● Observe the stipulations of EN 806 and DIN 1988 for domestic water pipes.

● Install the ROTEX HPSU monobloc compact close to the withdrawal point to dispense with the need for a circulation line. If a circulation line is mandatory, it must be installed according to the schematic diagrams in system connection".

chap. 9 "Hydraulic

Fig. 4-11 Aligning the heating supply and return upwards

● Pull the two plug brackets off the connection couplings fig. 4-11, item C).

(

● Pull off the two connection couplings (fig. 4-11, item B).

CAUTION!

When working on the hydraulics, pay attention

to the installation position of the O-rings to avoid damaging them and causing leaks.

● Always place O-rings on the part to be

inserted after a plug connection has been removed or before it is installed.

● Connection of heating lines by plug connection must be without tension. Establish suitable tension relief particularly for connection with flexible lines (not breathable!).

● Remove the retaining plate (fig. 4-11, item A).

● Pull off the sealing plug plug bracket (fig. 4-11, item D).

● Pull out the sealing plug (fig. 4-11, item E).

● Turn the elbow (fig. 4-11, item H) 90° to the rear.

● Pull the plug bracket off the manifold (fig. 4-11, item G).

● Carefully pull the manifold (fig. 4-11, item F) so far backwards

out of its horizontal mounting that the retaining plate (fig. 4-12, item A) can be pushed vertically in between.

FA ROTEX HPSU monobloc compact • 09/2017

4 x Set-up and installation

Fig. 4-13 Cut-out in thermal insulation

Fig. 4-12 Heating supply and return connections aligned to the rear

● Slide the retaining plate between the manifold and its horizontal mounting and insert the manifold (fig. 4-12, item F) back into its mounting through the middle hole of the retaining plate.

CAUTION!

If the plug brackets cannot be put on properly, the couplings can be detached from their mountings to ensure a very strong or continuous escape of liquid can occur.

● Before putting on a plug bracket, make sure that the plug bracket engages in the coupling groove. To do so, insert the coupling far enough into the mounting that the groove is visible through the plug bracket mounting.

● Insert the plug bracket up to the end stop.

● Secure the manifold with plug bracket (fig. 4-12, item G) in its

mounting again.

● Insert the two connection couplings (fig. 4-12, item B) into the lateral mountings through the retaining plate.

● Secure the two connection couplings with plug brackets (fig. 4-12, item C) in their mountings.

● Insert the sealing plug (fig. 4-12, item E) into the upper mounting.

● Secure the sealing plug with plug bracket (fig. 4-12, item D).

● Cut out side openings in the thermal insulation (fig. 4-13,

item A) using a suitable tool.

4.4.2 Connecting hydraulic lines

Prerequisite: optional accessories (e.g. solar, backup heater) are mounted on the ROTEX HPSU monobloc compact as specified in the enclosed instructions.

● Check cold water pressure (maximum 6 bar). – If a higher pressure is present in the domestic water pipe,

a pressure reducer will need to be installed.

● Establish hydraulic connections on the ROTEX HPSU monobloc compact. – Refer to fig. 4-1 / fig. 4-2 and tab. 3-1 for the position and

dimensions of the heater connections and the outdoor unit connections.

– Pay attention to the stipulated tightening torque (see

chap. 10.3 "Tightening torque").

– Install the line so that the sound insulation hood can be

positioned easily after installation.

– Connect the water for filling or refilling the heating system

as per EN 1717 so that contamination of the drinking water due to return flow is reliably prevented.

● Connect the drain line to the safety overpressure valve and diaphragm expansion vessel as per EN 12828. – Check the seat of the drain hose on the pressure relief

valve.

– If necessary, connect and install a separate hose.

● Carefully insulate pipework against heat loss and to avoid condensation (insulation thickness at least 20

– Water shortage protection: the controller's pressure and

temperature monitoring function shuts off the ROTEX HPSU monobloc compact reliably if there is a shortage of water. No additional water shortage protection is needed in the con struction.

– Damage due to deposits and corrosion: observe the rele-

vant technical rules to avoid corrosion products and deposits. Minimum requirements regarding the quality of filling and supplementary water: – Water hardness (calcium and magnesium, calculated as

calcium carbonate): ≤ 3 mmol/l – Conductivity: ≤ 1500 (ideal: ≤ 100) μS/cm – Chloride: ≤ 250 mg/l – Sulphate: ≤ 250 mg/l – pH-values (heating water): 6.5 - 8.5

mm).

Measures for desalination, softening, hardness stabilisation or other suitable conditioning measures are necessary to adhere to the required water quality if the filling and top-up water have a high overall hardness or other properties that deviate from the minimum requirements.

FA ROTEX HPSU monobloc compact • 09/2017

WARNING!

There is a danger of scalding at hot water temperatures over 60 °C. This is possible when using solar energy if an external heater is connected, the Legionella protection is activated, or the target hot water temperature is set to be greater than 60 °C.

● Install scalding protection (hot water mixing facility (e.g. VTA32 15 60 15 + Screw set 1" 15 60 16).

● Connect the drain hose to the hose connector for the safety overflow (fig. 3-1 to fig. 3-3, item 23). – Use transparent drain hose (draining water must be visi-

ble).

– Connect the drain hose to an adequately dimensioned

waste water installation.

– Drain should not be lockable.

4 x Set-up and installation

4.4.3 Installation of the DB connection kit (

14 15 90)

The optional DB connection kit enables better accessibility for connecting the DrainBack line (solar feed).

Fig. 4-14 Installation of drain hose at safety overflow

● Connect the discharge fitting on the cover (fig. 3-3, item 30) to the waste water installation with the enclosed hose section.

A DB pipe connection (solar

feed)

B FlowSensor (not part of the

DB connection kit, but included with RPS4)

Fig. 4-15 DB connection kit

C Flow limiter (FlowGuard) D Solar feed connection on

the storage tank

4.4.4 Installation of the P connection kit (

14 15 89)

The optional P connection kit for B device types allows better access for connecting the supply and return lines of a pressurised solar system or another external heat generator on the storage tank. The kit contains two thermally insulated corrugated pipes that are connected to the connections of the storage tank via a union nut. At the other end of the corrugated pipes there is an adapter for different connection sizes of the supply and return pipes.

FA ROTEX HPSU monobloc compact • 09/2017

A Connection for supply (red) B Connection for return (blue)

Fig. 4-16 P connection kit for B device types

4 x Set-up and installation

4.5 Electrical connection

WARNING!

Touching live parts can result in an electric shock and lead to potentially fatal injuries and

burns.

● Before beginning work on live parts, discon-

nect all of the systems circuits from the power supply (switch off external main

switch, disconnect fuse) and secure against unintentional restart.

● The electrical connection and working on the electrical components should only be performed by electrical engineers in compliance with valid standards and guidelines as well as the specifications of the energy supply company.

● The equipment covers and maintenance opening covers must be re-fitted immedi

ately after completion of the work.

CAUTION!

Increased temperatures may occur in the ROTEX HPSU monobloc compact control housing during operation. This can result in currently-carrying wires from reaching higher

temperatures during operation due to self-heating. For this reason, these lines need to have a

continuous use temperature of 90

°C.

● For the following connections, use only cables with a long-term use temperature

90 °C:

≥

– Optional: electric backup heater (BUxx)

FA ROTEX HPSU monobloc compact • 09/2017

+ 50 hidden pages