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 - PROHLÁENÍ-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
01
are in conformity with the following standard(s) or other normative document(s), provided that these are used in accordance with our
instructions:
02
der/den folgenden Norm(en) oder einem anderen Normdokument oder -dokumenten entspricht/entsprechen, unter der Voraussetzung,
daß sie gemäß unseren Anweisungen eingesetzt werden:
03
sont conformes à la/aux norme(s) ou autre(s) document(s) normatif(s), pour autant qu'ils soient utilisés conformément à nos instructions:
04
conform de volgende norm(en) of één of meer andere bindende documenten zijn, op voorwaarde dat ze worden gebruikt overeenkomstig
onze instructies:
05
están 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:
06
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:
07
İȓȞĮȚ ıȪȝijȦȞĮ ȝİ IJȠ(Į) ĮțȩȜȠȣșȠ(Į) ʌȡȩIJȣʌȠ(Į) Ȓ ȐȜȜȠ ȑȖȖȡĮijȠ(Į) țĮȞȠȞȚıȝȫȞ, ȣʌȩ IJȘȞ ʌȡȠȨʌȩșİıȘ ȩIJȚ ȤȡȘıȚȝȠʌȠȚȠȪȞIJĮȚ ıȪȝijȦȞĮ
ȝİ IJȚȢ ȠįȘȖȓİȢ ȝĮȢ:
08
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:
09
ɫɨɨɬɜɟɬɫɬɜɭɸɬ ɫɥɟɞɭɸɳɢɦ ɫɬɚɧɞɚɪɬɚɦ ɢɥɢ ɞɪɭɝɢɦ ɧɨɪɦɚɬɢɜɧɵɦ ɞɨɤɭɦɟɧɬɚɦ, ɩɪɢ ɭɫɥɨɜɢɢ ɢɯ ɢɫɩɨɥɶɡɨɜɚɧɢɹ ɫɨɝɥɚɫɧɨ ɧɚɲɢɦ
ɢɧɫɬɪɭɤɰɢɹɦ:
10
overholder følgende standard(er) eller andet/andre retningsgivende dokument(er), forudsat at disse anvendes i henhold til vore
instrukser:
11
respektive 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:
12
respektive utstyr er i overensstemmelse med følgende standard(er) eller andre normgivende dokument(er), under forutssetning av at
disse brukes i henhold til våre instrukser:
13
vastaavat seuraavien standardien ja muiden ohjeellisten dokumenttien vaatimuksia edellyttäen, että niitä käytetään ohjeidemme
mukaisesti:
14
za pĜedpokladu, e jsou vyuívány v souladu s naimi pokyny, odpovídají následujícím normám nebo normativním dokumentĤm:
15
u skladu sa slijedeüim standardom(ima) ili drugim normativnim dokumentom(ima), uz uvjet da se oni koriste u skladu s naim uputama:
16
megfelelnek az alábbi szabvány(ok)nak vagy egyéb irányadó dokumentum(ok)nak, ha azokat elĘírás szerint használják:
17
speániają wymogi nastĊpujących norm i innych dokumentów normalizacyjnych, pod warunkiem Īe uĪywane są zgodnie z naszymi
instrukcjami:
18
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:
19
skladni z naslednjimi standardi in drugimi normativi, pod pogojem, da se uporabljajo v skladu z naimi navodili:
20
on vastavuses järgmis(t)e standardi(te)ga või teiste normatiivsete dokumentidega, kui neid kasutatakse vastavalt meie juhenditele:
21
ɫɴɨɬɜɟɬɫɬɜɚɬ ɧɚ ɫɥɟɞɧɢɬɟ ɫɬɚɧɞɚɪɬɢ ɢɥɢ ɞɪɭɝɢ ɧɨɪɦɚɬɢɜɧɢ ɞɨɤɭɦɟɧɬɢ, ɩɪɢ ɭɫɥɨɜɢɟ, ɱɟ ɫɟ ɢɡɩɨɥɡɜɚɬ ɫɴɝɥɚɫɧɨ ɧɚɲɢɬɟ
ɢɧɫɬɪɭɤɰɢɢ:
22
atitinka emiau nurodytus standartus ir (arba) kitus norminius dokumentus su sąlyga, kad yra naudojami pagal mnjsǐ nurodymus:
23
tad, ja lietoti atbilstoi raotƗja norƗdƯjumiem, atbilst sekojoiem standartiem un citiem normatƯviem dokumentiem:
24
sú v zhode s nasledovnou(ými) normou(ami) alebo iným(i) normatívnym(i) dokumentom(ami), za predpokladu, e sa pouívajú v súlade
s naim návodom:
25
ürünün, talimatlarmza göre kullanlmas koúuluyla aúa÷daki standartlar ve norm belirten belgelerle uyumludur:
01
Directives, as amended.
02
Direktiven, gemäß Änderung.
03
Directives, telles que modifiées.
04
Richtlijnen, zoals geamendeerd.
05
Directivas, según lo enmendado.
06
Direttive, come da modifica.
07
ȅįȘȖȚȫȞ, ȩʌȦȢ ȑȤȠȣȞ IJȡȠʌȠʌȠȚȘșİȓ.
08
Directivas, conforme alteração em.
09
Ⱦɢɪɟɤɬɢɜ ɫɨ ɜɫɟɦɢ ɩɨɩɪɚɜɤɚɦɢ.
10
Direktiver, med senere ændringer.
11
Direktiv, med företagna ändringar.
12
Direktiver, med foretatte endringer.
13
Direktiivejä, sellaisina kuin ne ovat muutettuina.
14
v platném znČní.
15
Smjernice, kako je izmijenjeno.
16
irányelv(ek) és módosításaik rendelkezéseit
.
17
z póĨniejszymi poprawkami.
18
Directivelor, cu amendamentele respective.
19
Direktive z vsemi spremembami.
20
Direktiivid koos muudatustega.
21
Ⱦɢɪɟɤɬɢɜɢ, ɫ ɬɟɯɧɢɬɟ ɢɡɦɟɧɟɧɢɹ.
22
Direktyvose su papildymais.
23
DirektƯvƗs un to papildinƗjumos.
24
Smernice, v platnom znení.
25
Deۜiútirilmiú halleriyle Yönetmelikler.
01
following the provisions of:
02
gemäß den Vorschriften der:
03
conformément aux stipulations des:
04
overeenkomstig de bepalingen van:
05
siguiendo las disposiciones de:
06
secondo le prescrizioni per:
07
ȝİ IJȒȡȘıȘ IJȦȞ įȚĮIJȐȟİȦȞ IJȦȞ:
08
de acordo com o previsto em:
09
ɜ ɫɨɨɬɜɟɬɫɬɜɢɢ ɫ ɩɨɥɨɠɟɧɢɹɦɢ:
10
under iagttagelse af bestemmelserne i:
11
enligt villkoren i:
12
gitt i henhold til bestemmelsene i:
13
noudattaen määräyksiä:
14
za dodrení ustanovení pĜedpisu:
15
prema odredbama:
16
követi a(z):
17
zgodnie z postanowieniami Dyrektyw:
18
în urma prevederilor:
19
ob upotevanju doloþb:
20
vastavalt nõuetele:
21
ɫɥɟɞɜɚɣɤɢ ɤɥɚɭɡɢɬɟ ɧɚ:
22
laikantis nuostatǐ, pateikiamǐ:
23
ievƝrojot prasƯbas, kas noteiktas:
24
odriavajúc ustanovenia:
25
bunun koúullarna uygun olarak:
527(;+HDWLQJ6\VWHPV*PE+
01
a
declares under its sole responsibility that the equipment to which this declaration relates:
02
d
erklärt auf seine alleinige Verantwortung daß die Ausrüstung für die diese Erklärung bestimmt ist:
03
f
déclare sous sa seule responsabilité que l'équipement visé par la présente déclaration:
04
l
verklaart hierbij op eigen exclusieve verantwoordelijkheid dat de apparatuur waarop deze verklaring betrekking heeft:
05
e
declara bajo su única responsabilidad que el equipo al que hace referencia la declaración:
06
i
dichiara sotto la propria responsabilità che gli apparecchi a cui è riferita questa dichiarazione:
07
g
įȘȜȫȞİȚ ȝİ ĮʌȠțȜİȚıIJȚțȒ IJȘȢ İȣșȪȞȘ ȩIJȚ Ƞ İȟȠʌȜȚıȝȩȢ ıIJȠȞ ȠʌȠȓȠ ĮȞĮijȑȡİIJĮȚ Ș ʌĮȡȠȪıĮ įȒȜȦıȘ:
08
p
declara sob sua exclusiva responsabilidade que os equipamentos a que esta declaração se refere:
09
u
ɡɚɹɜɥɹɟɬ, ɢɫɤɥɸɱɢɬɟɥɶɧɨ ɩɨɞ ɫɜɨɸ ɨɬɜɟɬɫɬɜɟɧɧɨɫɬɶ, ɱɬɨ
ɨɛɨɪɭɞɨɜɚɧɢɟ,
ɤ ɤɨɬɨɪɨɦ
ɭ
ɨɬɧɨɫɢɬɫɹ ɧɚɫɬɨɹɳɟɟ ɡɚɹɜɥɟɧɢɟ:
10
q
erklærer under eneansvarlig, at udstyret, som er omfattet af denne erklæring:
11
s
deklarerar i egenskap av huvudansvarig, att utrustningen som berörs av denna deklaration innebär att:
12
n
erklærer et fullstendig ansvar for at det utstyr som berøres av denne deklarasjon innebærer at:
13
j
ilmoittaa yksinomaan omalla vastuullaan, että tämän ilmoituksen tarkoittamat laitteet:
14
c
prohlauje ve své plné odpovČdnosti, e zaĜízení, k nČmu se toto prohláení vztahuje:
15
y
izjavljuje pod iskljuþivo vlastitom odgovornoüu da oprema na koju se ova izjava odnosi:
16
h
teljes felelĘssége tudatában kijelenti, hogy a berendezések, melyekre e nyilatkozat vonatkozik:
17
m
deklaruje na wáasną i wyáączną odpowiedzialnoĞü, Īe urządzenia, których ta deklaracja dotyczy:
18
r
declară pe proprie răspundere că echipamentele la care se referă această declaraĠie:
19
o
z vso odgovornostjo izjavlja, da je oprema naprav, na katero se izjava nanaa:
20
x
kinnitab oma täielikul vastutusel, et käesoleva deklaratsiooni alla kuuluv varustus:
21
b
ɞɟɤɥɚɪɢɪɚ ɧɚ ɫɜɨɹ ɨɬɝɨɜɨɪɧɨɫɬ, ɱɟ ɨɛɨɪɭɞɜɚɧɟɬɨ, ɡɚ ɤɨeɬɨ ɫɟ ɨɬɧɚɫɹ ɬɚɡɢ ɞɟɤɥɚɪɚɰɢɹ:
22
t
visika savo atsakomybe skelbia, kad Ƴranga, kuriai taikoma i deklaracija:
23
v
ar pilnu atbildƯbu apliecina, ka tƗlƗk aprakstƯtƗs iekƗrtas, uz kurƗm attiecas Ư deklarƗcija:
24
k
vyhlasuje na vlastnú zodpovednosĢ, e zariadenie, na ktoré sa vzĢahuje toto vyhlásenie:
25
w
tamamen kendi sorumluluۜunda olmak üzere bu bildirinin ilgili olduۜu donanmnn aúaۜdaki 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,
Low Voltage 20/5/E8
Electromagnetic Compatibility 204//E8
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5.+:0;&$5.+:0;%&$5.+:0;&$5.+:0;%&$
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List of contents
FA ROTEX HPSU monobloc compact • 09/2017 3
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
4FA 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 pro-
ceeding with the installation or modification of the heating sys-
tem.
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 techni-
cians 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 installa-
tion, 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.
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.
1.2 Warranty conditions
The legal guarantee conditions fundamentally apply. Our war-
ranty conditions beyond that can be found online on your sales
presentative's webpage.
2 x Safety
FA ROTEX HPSU monobloc compact • 09/2017 5
2Safety
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.
Special warning signs
Some types of danger are represented by
special symbols:
2.1.2 Validity
Some information in this manual has limited va-
lidity. The validity is highlighted by a symbol.
2.1.3 Order number
References to order numbers can be recognised
from the goods symbol .
2.1.4 Handling instructions
ƔHandling instructions are shown as a list.
Actions for which the sequential order must be
maintained are numbered.
2.2 Avoiding danger
The ROTEX HPSU monobloc compact is built
according to the state-of-the-art and the recog-
nised 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.
This assumes knowledge and use of the con-
tents of this manual, of the relevant accident pre-
vention regulations as well as the recognised
safety-related and occupational health rules.
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.
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 par-
ticularly useful information, but not
warnings or hazards.
Electric current
Risk of burning or scalding
Risk of environmental damage
Danger of local freezing up
Health impairing or irritant materials
Prescribed temperature for continuous use
Danger of explosion
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.
ÎResults of actions are identified with an
arrow.
Entry into a setting procedure
Exit from a setting procedure
6FA ROTEX HPSU monobloc compact • 09/2017
2 x Safety
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 ac-
cording to the data in these instructions.
Only the use of a suitable outdoor unit approved
by ROTEX is permitted. The following combina-
tions are permissible in this respect:
* 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 con-
sidered as improper. The operator alone shall
bear responsibility for any resulting damage.
Intended use also includes compliance with the
maintenance and service conditions. Re-
placement parts must at least satisfy the tech-
nical 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
ƔWork 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,
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.
ƔSwitch off the external main switch during all
work on the ROTEX HPSU monobloc
compact, and secure it to prevent uninten-
tional activation.
ƔSeals must not be damaged or removed.
ƔMake 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.
ƔOnly original ROTEX replacement parts may
be used.
ƔWhen 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
ƔElectrical 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 regula-
tions of the responsible utility company (EVU).
ƔCompare 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.
ƔBefore beginning work on live parts,
disconnect all of the systems circuits from the
power supply (switch off main switch,
disconnect fuse) and secure against uninten-
tional restart.
ƔEquipment covers and service panels must be
replaced as soon as the work is completed.
WARNING!
This equipment must only be used by children
aged 8 and above and by persons with re-
stricted 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.
Indoor unit Outdoor unit
RKHWMX300C
RKHWMX500C
RKHWMXB300C
RKHWMXB500C
RBLQ05C2V3
RBLQ07C2V3
2 x Safety
FA ROTEX HPSU monobloc compact • 09/2017 7
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 com-
ponents can be found in the associated docu-
mentation supplied with them.
2.4.4 Heating system and sanitary
connection
ƔCreate a heating system according to the
safety requirements of EN 12828.
ƔWith a sanitary connection you must comply
with
– EN 1717 – Protection against pollution of
potable water installations and general
requirements of devices to prevent pollu-
tion 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.
ƔScalding 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.
ƔTo prevent possible damage, fit a dirt filter or
sludge separator into the heating return flow
of the system.
–SAS 1 ( 15 60 21)
ƔThe 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 de-
posits.
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) ȝS/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:
ƔDo not operate until all installation and
connection work is completed.
ƔOnly operate with a completely full storage
tank (Level indicator) and heating circuit.
ƔOperate at a maximum pressure of 3 bar.
ƔOnly connect with a pressure reducer on the
external water supply (supply line).
Ɣonly operate if the protective cover is installed.
The specified servicing intervals should be
adhered to and inspection work must be car-
ried out.
2.4.7 Instruct the owner
ƔBefore you hand over the ROTEX HPSU
monobloc compact, explain to the user how to
operate and check the system.
ƔHand 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.
ƔDocument the handover by filling out the
installation and instruction forms together with
the owner and sign them.
8FA ROTEX HPSU monobloc compact • 09/2017
3 x Product description
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
30 1234
5
33
19
17
3UV
DHW
18
29
28
RoCon B1
3UVB1
9
23
24
22
19
3UV DHW
7a
1
23 4
5
3132
3UVB1
17
18
12
41
10
20
27
15
24 / 11
t
DHW
X
26
M
A
B
AB
28
29
M
B
A
AB
14
13
21
X4
SV
5
31
32 M
B
A
AB
M
AB
AB
3UV
DHW 3UVB1
DS
MAG
t
V,BH
3 x Product description
FA ROTEX HPSU monobloc compact • 09/2017 9
3.1.2 Exterior of the device and interior structure RKHWMX(B)500C
Fig. 3-2 RKHWMX(B)500C design and components (exterior view and interior structure)
Key names, see tab. 3-1
19
3UV
DHW
28
29
RoCon B1
3UVB1
17
18
33
12 330
4
5
7a
15
9
23
24
22
20
13
23 2928
t
DHW
19
4
53132 X
M
A
B
AB
M
B
A
AB
21
12
41
24 / 11
10
14
16
3UV DHW
17
1
26
27
18
3UVB1
X4
SV
5
31
32 M
B
A
AB
M
AB
AB
3UV
DHW 3UVB1
DS
MAG
t
V,BH
3 x Product description
FA ROTEX HPSU monobloc compact • 09/2017 11
Tab. 3-1 Legend for fig. 3-1 to fig. 3-3
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 1½" IG)
16 Solar - inflow layering pipe
17 Fill level indicator (storage tank water)
18 Optional: electric backup heater
(BUxx)
19 Sensor immersion sleeve for storage tank
temperature sensor tDHW
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
3UVB1
3-way switch valve (internal heat genera-
tor circuit)
3UV DHW
3-way switch valve (hot water / heating)
DS Pressure sensor
MAG
Diaphragm expansion vessel (optional)
SV Safety pressure relief valve (heating cir-
cuit)
tDHW
Storage tank temperature sensor
tV, BH
Backup heater feed temperature sensor
RoCon B1
ROTEX HPSU monobloc compact control-
ler control panel
Safety devices
Observe tightening torque!
AG External thread
IG Internal thread
* Ball cock (1" IG) is supplied.
12 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 func-
tion.
Work on the ROTEX HPSU monobloc compact (such as e.g. installation, repair, connection and ini-
tial 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.
4 x Set-up and installation
FA ROTEX HPSU monobloc compact • 09/2017 13
4.1 Dimensions and connections
4.1.1 RKHWMX(B)300C
1 Solar inflow
2 Cold water
3 Hot water
4 Heating flow
5 Heating return flow
6 Outdoor unit water outlet connection
7 Outdoor unit water inlet connection
8 Solar feed (type …(B) only)
9 Solar return (type …(B) only)
A Front
BRear
Fig. 4-1 RKHWMX(B)300C connections and dimensions
14 FA ROTEX HPSU monobloc compact • 09/2017
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
7 Outdoor unit water inlet connection
8 Solar feed (type …(B) only)
9 Solar return (type …(B) only)
AFront
B Rear
Fig. 4-2 RKHWMX(B)500C connections and dimensions
4 x Set-up and installation
FA ROTEX HPSU monobloc compact • 09/2017 15
4.1.3 Scope of delivery
– ROTEX HPSU monobloc compact
– Bag of accessories (see fig. 4-3)
4.2 Installation
A Handles (only required for
transport)
B Cover screen
C Hose connecting piece for
safety overflow
D Spanner
EBall cock
F Flat seal
GO-ring
H Cable tie
I Plug bracket
J Venting tube
K Cover drain hose
Fig. 4-3 Contents of bag of accessories
CAUTION!
ƔOnly 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.
ƔOutdoor installation is not permissible.
ƔInstallation in an explosion-risk environment
is not permissible.
ƔThe electronic controller must never be
exposed to the effects of weather.
ƔThe 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.
ƔThe ROTEX HPSU monobloc compact must
be installed protected from frost.
ƔMake sure that the supply company does
not provide corrosive domestic water.
– Suitable water treatment may be
required.
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.
ƔOnly install the ROTEX HPSU monobloc
compact with a minimum distance of 1 m to
other heat sources (>80 °C) (e.g. electrical
heater, oil heater, chimney) and the material
to be combusted.
16 FA ROTEX HPSU monobloc compact • 09/2017
4 x Set-up and installation
ƔRemove packing and dispose of it in an environment-friendly
manner.
ƔPull 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).
ƔScrew the handles (fig. 4-4, item A) into the now uncovered
threaded holes.
ƔInstall the ROTEX HPSU monobloc compact at the installa-
tion 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.
ƔIf required, install the optional backup heater (BUxx) in the
ROTEX HPSU monobloc compact (fig. 4-5).
Observe the installation and operating instructions enclosed
with the accessories ( tightening torque, see chap. 10.3).
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 pan-
els), the unpressurised solar system in the out-
door area will not be able to drain completely.
ƔInstall the ROTEX HPSU monobloc compact
sufficiently low at the flat solar panels
(observe minimum gradient in the solar con-
nection lines) in the case of a DrainBack solar
connection.
A Handle
B Cover screen
F Threaded piece
Fig. 4-4 Installing the handles
4 x Set-up and installation
FA ROTEX HPSU monobloc compact • 09/2017 17
4.3 Removing the cover and thermal insulation
ƔRaise the cover at the rear and remove forwards.
Fig. 4-5 Installation (shown on RKHWMX(B)500C with installation of
the optional backup heater)
1200 mm
ኢ
X
2. 3. 4.
5.
s2
s1
>80°C
<1000 mm
max. 10 Nm
≥ 2050
X
1.
Fig. 4-6 Remove the protective cover
If the installation conditions require the hydraulic con-
nection directly upwards, the cover can be cut out along
the broken line.
Fig. 4-7 Producing the cover cut-out
Fig. 4-8 ROTEX HPSU monobloc compact without protective cover
18 FA ROTEX HPSU monobloc compact • 09/2017
4 x Set-up and installation
ƔRemove 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).
ƔAs 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).
4.4 Water connection
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.
ƔOnly remove the thermal insulation in the
order stated below and in the stated direc-
tions.
ƔDo not use force.
ƔDo not use tools.
Fig. 4-9 Removing the top thermal insulation
Fig. 4-10 Removing the bottom thermal insulation
The thermal insulation is installed in reverse order.
CAUTION!
If the ROTEX HPSU monobloc compact is con-
nected 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.
ƔFlush the feed pipes before filling the heat
exchanger.
ƔRinse out the heat distribution network (in the
existing heating system).
ƔInstall a dirt filter or sludge separator in the
heating return flow (see chap. 2.4.4).
4 x Set-up and installation
FA ROTEX HPSU monobloc compact • 09/2017 19
ƔObserve the stipulations of EN 806 and DIN 1988 for domes-
tic water pipes.
ƔInstall 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 chap. 9 "Hydraulic
system connection".
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:
ƔRemove the protective cover and top thermal insulation (see
chap. 4.3).
ƔPull the two plug brackets off the connection couplings
(fig. 4-11, item C).
ƔPull off the two connection couplings (fig. 4-11, item B).
ƔRemove the retaining plate (fig. 4-11, item A).
ƔPull off the sealing plug plug bracket (fig. 4-11, item D).
ƔPull out the sealing plug (fig. 4-11, item E).
ƔTurn the elbow (fig. 4-11, item H) 90° to the rear.
ƔPull the plug bracket off the manifold (fig. 4-11, item G).
ƔCarefully 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.
CAUTION!
If the ROTEX HPSU monobloc compact is con-
nected 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.
ƔFlush the feed pipes before filling the heat
exchanger.
ƔInstall 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. wood-
burning boiler), the ROTEX HPSU monobloc
compact can be damaged or destroyed due to
an excessively high feed temperature at these
connections.
ƔThe 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 ele-
ments between the heat generator and the diaphragm expan-
sion vessel.
ROTEX recommends installing a mechanical pressure gauge
for filling the heating system.
Fig. 4-11 Aligning the heating supply and return upwards
CAUTION!
When working on the hydraulics, pay attention
to the installation position of the O-rings to avoid
damaging them and causing leaks.
ƔAlways place O-rings on the part to be
inserted after a plug connection has been
removed or before it is installed.
ƔConnection of heating lines by plug connec-
tion must be without tension. Establish suita-
ble tension relief particularly for connection
with flexible lines (not breathable!).
20 FA ROTEX HPSU monobloc compact • 09/2017
4 x Set-up and installation
ƔSlide the retaining plate between the manifold and its horizon-
tal mounting and insert the manifold (fig. 4-12, item F) back
into its mounting through the middle hole of the retaining
plate.
ƔSecure the manifold with plug bracket (fig. 4-12, item G) in its
mounting again.
ƔInsert the two connection couplings (fig. 4-12, item B) into the
lateral mountings through the retaining plate.
ƔSecure the two connection couplings with plug brackets
(fig. 4-12, item C) in their mountings.
ƔInsert the sealing plug (fig. 4-12, item E) into the upper
mounting.
ƔSecure the sealing plug with plug bracket (fig. 4-12, item D).
ƔCut 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.
ƔCheck 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.
ƔEstablish hydraulic connections on the ROTEX HPSU mono-
bloc 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.
ƔConnect 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.
ƔCarefully insulate pipework against heat loss and to avoid
condensation (insulation thickness at least 20 mm).
–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 sup-
plementary water:
– Water hardness (calcium and magnesium, calculated as
calcium carbonate): 3 mmol/l
– Conductivity: 1500 (ideal: 100) ȝS/cm
– Chloride: 250 mg/l
– Sulphate: 250 mg/l
– pH-values (heating water): 6.5 - 8.5
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.
Fig. 4-12 Heating supply and return connections aligned to the rear
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.
ƔBefore 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.
ƔInsert the plug bracket up to the end stop.
Fig. 4-13 Cut-out in thermal insulation
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