Rotex ROTEXSCS 328/14/0 User manual

For certified companies
ROTEX Sanicube / HybridCube
High-efficiency hot water storage tank
Installation and maintenance
instructions
Type Continuous heat output
up to:
ROTEXSCS 328/14/0 27 kW
ROTEXSC 538/16/0 35 kW
ROTEXSC 538/16/16 50 kW
ROTEXSCS 538/0/0 35 kW
ROTEXSCS 538/16/0 35 kW
ROTEXSCS 538/16/16 45 kW
ROTEXHYC 343/19/0 8 kW
ROTEXHYC 544/19/0 8 kW
ROTEXHYC 544/32/0 16 kW
Serial number
Customer
GB
Edition 10/2009

2FA ROTEX SC+HYC - 10/2009
Guarantee and conformity
Warranty conditions
1. Warranty
ROTEX provides, for
–the hot water storage tank
–the electric immersion heater element
a warranty on material and fabrication faults, in addition to the existing legal guarantee period.
2. . Duration of the warranty
The warranty period for the
–3 years for the hot water storage tank
–2 years for the electric immersion heater element
3. Start of warranty
a) The warranty period starts on the day of installation and issue of the installation and instruction certificate concerning
the items covered by the warranty.
b) The warranty period starts no later than 6 months after the date of manufacture of the items covered by the warranty.
4. Conditions for claims under warranty
Claims under the warranty will only be accepted if:
–the unit has been used as intended and was installed properly in a verifiable manner by a qualified expert company,
–the "Installation and Instruction Certificate" has been completed in full, the date and legally binding signature has been
added and it has been sent back to ROTEX without delay after the installation,
–the unit has been serviced at regular intervals by an expert company in accordance with the relevant documentation and
has been cared for in accordance with the specifications.
5. Scope of warranty
a) For the first two years of the warranty period, ROTEX undertakes to repair the unit free of charge, or commission a
company or individual to repair the unit, where a material or manufacturing fault has resulted in a malfunction. Should
repair not be possible or be uneconomical, ROTEX is prepared to provide a new unit and to pay the removal and
installation costs involved.

No claim for reimbursement of additional consequential costs or damage may be derived from this.
b) For the period after expiry of the first 2 years as per a), up to the expiry of the warranty period in accordance with
subparagraph 2, ROTEX undertakes to provide replacement parts for the repair free of charge.

The costs for fitting and removal and other consequential costs or damage will not be covered by ROTEX.
6. Exclusions from the warranty
a) Improper use, tampering with the unit and unqualified modifications immediately invalidate the warranty. The same
applies if the unit has not been verifiably properly maintained or taken care of.
b) Dispatch and transport damage are excluded from the warranty.
c) Unless agreed otherwise, the warranty does not cover reimbursement of consequential costs, in particular fitting and
removal costs or damage.
d) Wearing parts (as defined by ROTEX) such as indicators, switches, fuses are not covered by the warranty.
7. Final provisions
If certain specific provisions of this warranty declaration are, or become, void, then the validity of the remaining provisions
remains unaffected by this.
Status of warranty conditions March 2009.

3
FA ROTEX SC+HYC - 10/2009
Guarantee and conformity
Declaration of conformity
For the high-efficiency hot water storage tank ROTEX Sanicube / HybridCube
We, ROTEX Heating Systems GmbH, declare under our sole responsibility that the products
Product Order No. Product Order No.
ROTEXSCS 328/14/0 16 50 10 ROTEXSC 538/16/0 16 50 16
ROTEXSCS 538/0/0 16 45 15 ROTEXSC 538/16/16 16 50 17
ROTEXSCS 538/16/0 16 45 16 ROTEXHYC 343/19/0 14 05 07
ROTEXSCS 538/16/16 16 45 17 ROTEXHYC 544/19/0 14 05 01
ROTEXHYC 544/32/0 14 05 03
are ready-for-use products in terms of the EC Construction Products Directive and comply with the requirements of the following
guideline.
89/106/EEC Construction Products Directive, Annex lll-2-ii-3
with reference to
EN 12897 Storage tank water heaters (reference for the type, only applicable in part)
Design modifications which have an influence on the technical data for the hot water storage tank quoted in the product description and on the intended use,
in other words representing substantial changes, render this declaration of conformity invalid.
Güglingen, 01.10.2009 Dr Eng. Franz Grammling
Managing Director

Contents
4FA ROTEX SC+HYC - 10/2009
1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Refer to the manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Warning signs and explanation of symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Avoid danger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.4 intended use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.5 Instructions for operating safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1 Design and components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1.1 Sanicube (SC) / Sanicube Solaris (SCS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1.2 HybridCube (HYC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.2 Brief description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.3 Advantages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
2.4 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
2.4.1 Electric immersion heater elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.4.2 Non return flow valves. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.4.3 Dirt filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.4.4 Scalding protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
2.4.5 Thermometer Set. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.4.6 Solaris storage tank extension set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3 Set-up and installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.1 Hydraulic system connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.1.1 Sanicube (SC) / Sanicube Solaris (SCS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
3.1.2 HybridCube (HYC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
3.2 Set-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
3.3 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
3.3.1 Overview of connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.3.2 Instructions for water connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.3.3 Hydraulic connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.3.4 Connection of several Sanicube storage tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
3.3.5 Filling the hot water heat exchanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.3.6 Filling the storage tank (without Solaris System installed) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
3.3.7 Filling the storage tank (with Solaris System installed). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
3.3.8 Filling the heating system and the storage tank charging circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
3.3.9 Connecting the electric immersion heater element (accessories) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
4 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.1 Initial commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5 Operation and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.1 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.1.1 Storage tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.1.2 Immersion heater EHS/500/1, EHS/500/5, EHS/500/6 (Accessories). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.1.3 Booster heater EHS/500/7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.2 Inspection and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6 Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6.1 Basic data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6.1.1 Sanicube (SC) / Sanicube Solaris (SCS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
6.1.2 HybridCube (HYC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
6.2 Performance diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
7 List of keywords. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

1 xSafety
5
FA ROTEX SC+HYC - 10/2009
1Safety
1.1 Refer to the manual
These instructions are intended for authorised and trained heating and sanitation experts who have experience in the proper
installation and maintenance of heating systems and hot water storage tanks by virtue of their technical training and know-how.
This manual provides all the necessary information for installation, commissioning and maintenance, as well as basic information
on operation and settings. Please see the attached documents for a detailed description of operation and control.
Please read this manual carefully and thoroughly before proceeding with the installation or modification of the heating system.
Relevant documents
– When connecting to an external heat generator; the appropriate installation and operating instructions.
– When connecting a ROTEX Solaris system; the appropriate installation and operating instructions.
1.2 Warning signs and explanation of symbols
Meaning of the warnings
The warnings are classified in this manual according to their severity and probability of occurrence.
Special warning signs
Some types of danger are represented by special symbols:
Order number
Notes related to Order numbers are identified by the cart symbol .
Handling instructions
• Instructions on actions are shown as a list. Actions during which the sequential order must be maintained are numbered.
ÎResults of actions are identified with an arrow.
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 can result in serious 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 particularly useful information, but not warnings or hazards.
Electrical current Danger of burning or scalding

1 xSafety
6FA ROTEX SC+HYC - 10/2009
1.3 Avoid danger
The ROTEX SC+HYC is state-of-the-art and is built to meet all recognised technical requirements. However, improper use may
result in serious physical injuries or death, as well as property damage.
To prevent such risks, install and operate ROTEX SC+HYC only:
– as stipulated and in perfect condition,
– with an awareness of safety and the hazards involved.
This assumes knowledge and implementation of the contents of this manual, the relevant accident prevention regulations as well
as the recognised safety-related and occupational medical rules.
1.4 intended use
The ROTEX Sanicube / HybridCube may only be used as a hot water storage tank. The ROTEX SC+HYC must be installed,
connected and operated only according to the information in this manual. For connection to an HPSU heat pump, only the specially
provided storage tank connecting sets (E-PAC) may be used.
Only electric immersion heater elements supplied by ROTEX may be used.
Any use above and beyond this is deemed to be improper use. Responsibility for any resulting damage will be borne by the
user/owner alone.
Intended use also includes the observance of maintenance and inspection conditions. Replacement parts must at least satisfy the
technical requirements defined by the manufacturer. This is the case, for example, with the use of original replacement parts.
1.5 Instructions for operating safety
Before working on the hot water storage tank and the heating system
• Work on the hot water storage tank and heating system (e.g. installation, connection and initial commissioning) should only
be carried out by authorised and trained heating experts.
• Switch off the mains supply before starting any work on the hot water storage tank and heating system and secure it against
unintentional switch-on.
• Lead tamper-proof 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.
Electrical installation of optional accessories
• Electrical installation should only be carried out by qualified electrical engineers observing the technical electrical guidelines
and regulations of the relevant electric power supply company.
• Compare the mains voltage indicated on the type plate with the supply voltage before connecting to the mains.
Unit installation room
• Only erect the ROTEX Sanicube / HybridCube if a ground load-bearing capacity of 1050 kg/m² plus safety factor is
guaranteed. The ground must be flat and level.
• Erection outdoors is only possible to a limited extent. The storage tank must not be continuously exposed to direct sunlight.
• The ROTEX Sanicube / HybridCube must be protected from frost.
Corrosion protection
In some regions, corrosive drinking water is supplied by public utility companies that can cause damage through corrosion even
in high grade stainless steels. Check with your water supply works whether corrosion problems can occur when using hot water
storage tanks made of stainless steel in your area.
Appropriate water treatment may be required.

1 xSafety
7
FA ROTEX SC+HYC - 10/2009
Sanitary connection
With sanitary connection, the following must be observed
• EN 1717 - Protection of domestic water from contamination in domestic water installations and general
requirements concerning safety equipment for the prevention of domestic water contamination by back-flow
• EN 806 - Technical regulations for domestic water installations (TRWI)
• and, in addition, the country-specific legal stipulations.
• During operation of the ROTEX Sanicube / HybridCube, the storage tank temperature may exceed 60 °C, particularly when
solar power is used. Therefore, some form of scalding protection needs to be included when you install the system (hot water
mixing device, e. g.VTA32 15 60 16).
• Use a pressure reducer if the cold water connection pressure >6 bar.
Operation
• Operate ROTEX Sanicube / HybridCube only with storage tanks filled up to overflow edges.
• Operate the ROTEX Sanicube / HybridCube only with a set pressure reducer (max. 6 bar).
Instructing the user/owner
• Before you hand over the heating system and the hot water storage tank, explain to the owner how he/she can operate and
check the heating system.
• Document the hand-over by filling in and signing the checklist in Chapter 4 „Commissioning“, together with the operator.

2 xProduct description
8FA ROTEX SC+HYC - 10/2009
2 Product description
2.1 Design and components
2.1.1 Sanicube (SC) / Sanicube Solaris (SCS)
Fig. 2-1 Connections and dimensions, Sanicube Hot water storage tank
1 Solaris - flow (1 union nut) (SCS only)
2 Cold water supply (1“ male)*
3 Hot water (1" male)*
4 Tank charge feed (SC - "heating 1“; SCS - "heating 2“) (1“ AG)*
5 Tank charge return flow (SC - "heating 1“; SCS - "heating 2“)
(1“ AG)*
6 Tank charge feed (2nd heat source - "heating 3“) (1“ AG)*
7 Tank charge return flow (2nd heat source - "heating 3“)
(1“ AG)*
8 Solar support heating feed (SCS 538/xx/xx only) (1“ male)*
(Connect to heating return flow to boiler!)
9 Solar support to heating return flow (SCS 538/xx/xx only)
(1“ male)*

(Connect to heating return flow from system!)
10 Storage tank (double-walled jacket made of polypropylene with
PUR hard foam thermal insulation)
11 Filling and drain connection (Tr. 32

x3 male) with valve insert (SCS: Solaris return flow)
12 Connection for equalisation pipe (AGL, 16 01 08) or
extension set for another heat source (EWS, 16 01 10)
13 Corrugated stainless steel pipe heat exchanger for domestic hot
water heating
14 Corrugated stainless steel pipe heat exchanger for charging
storage tank (SL-WT1)
15 Corrugated stainless steel pipe heat exchanger for charging tank
via 2nd heat source (SL-WT2)
16 Corrugated stainless steel pipe heat exchanger solar support to
heating system (SCS 538/xx/xx only)
17 Heat exchange sleeve for solar support to heating system heat
exchanger (SCS 538/xx/xx only)
18 Connection for electric immersion heater element
(R 11/2“ female)
19 Solaris - stratifying pipe flow (SCS only)
20 Filling level indicator
21 Electric immersion heater element (optional)
22 Sensor immersion sleeve for storage tank temperature sensor
23 Unpressurised storage tank water
24 Solar zone (SCS 538/xx/xx only)
25 Hot water zone
26 Type plate
27 Safety overflow connection (Tr. 32x3 male)
28 Handle
X Recommended wall distance 200 mm
* Recommended accessories

(non return flow valves (2 pcs.), 16 50 70)
SCS 328/14/0
SCS 328/14/0
SC 538/16/16SCS 538/16/16
SCS/SC 538/16/16 834 669
780
1
78
22
18
20
3
2
9
6
5
4
140
220
256
93
195
XX
ø700
27
95
43
110115
160175
240
15070
26 26
800 mm
400 mm
222
33 3
55 5
44 4
66
89
77
1
20 20 20
21 21 21
18 18 18
27
10
10
28
17
11 11
12
11
28
22
22
185
185 1404
1550
16
25
25
19
13 13 13 1414 1415 1523 23
27 27 27
1420
1527
1
97
176 187
187
97
176176
97
590
187
615
2
5
6
3
118
22
20
1200 mm
1200 mm
355
27
25
24
22
12

2 xProduct description
9
FA ROTEX SC+HYC - 10/2009
2.1.2 HybridCube (HYC)
2.2 Brief description
The Hot water storage tank is a combination of heat storage tank and instantaneous water heater.
The pressureless storage water serves as heat storage medium. Useful heat is supplied and removed via the spiral corrosion-
resistant heat exchanger, which is made from a corrugated stainless steel pipe (1.4404), and is completely immersed in the
storage tank water. In the heat exchanger for heating drinking water, the latter is stored at the temperature level of the stand-
by zone.
Fig.2-2 Connections and dimensions HybridCube hot water storage tank (HYC)
1 Solaris - flow (1“ swivel nut)
2 Cold water supply (1“ male)*
3 Hot water (1“ male)*
4 Tank charge flow (1“ male)*
5 Tank charge return flow (1“ swivel nut)*
6 Heating support return flow (1“ ÜM)* HYC 544 only
7 Heating support return flow (1“ AG)* HYC 544 only
10 Storage tank (double-walled jacket made of polypropylene with
PUR hard foam thermal insulation)
11 Filling and drain connection (Tr. 32 x3 male) with valve insert
(Solaris return flow)
12 Connection for equalising line (AGL, 16 01 08)
13 Corrugated stainless steel pipe heat exchanger for domestic hot
water (TW-WT)
14 Corrugated stainless steel pipe heat exchanger for charging
storage tank (SL-WT1)
15 Corrugated stainless steel pipe heat exchanger for solar support
(HYC 544 only)
16 Heat insulation shell for heating support - heat exchanger
17 Connection for Booster Heater (EHS) (R 11/2“ female)
18 Solaris flow multilayer pipe
19 Filling level indicator
20 Booster Heater (EHS)
21 Dip sensor sleeve for tank temperature sensor
22 Pressure-free storage tank water
23 Solar zone
24 Hot water zone
25 Type plate
26 Safety overflow connection (Tr. 32x3 male)
27 Handle
X Recommended wall distance 200 mm
* Recommended accessories

(non return flow valves (2 pcs), 16 50 70)

2 xProduct description
10 FA ROTEX SC+HYC - 10/2009
The cold waterwhich flows in when the hot water is drawn off is first routed to the storage tank at the very bottom of the
heatexchanger, where it cools the lower zone of the storage tank down as much as possible. The stand-by zone is heated by an
external heat generator (condensing boiler, heating pump, solar system, electric immersion heater element). The flow through the
heat exchanger for tank charge (SL-WT) is downwards from above.
The drinking water continually absorbs the heat from the storage tank water on its way up. The direction of throughflow by the
countercurrent principle and the helical shape of the heat exchanger creates a distinct temperature layering in the storage tank.
As high temperatures can continue in the top area of the storage tank, it can achieve a high hot water output even on long tapping
cycles.
The ROTEX Sanicube Solaris and the ROTEX HybridCube can, in addition to an external heat generator, also be heated by solar
power. Depending on how much solar energy is available, the entire storage tank is heated up. The stored heat is used for hot
water generation as well as for the heating support. The high total storage capacity also temporarily allows periods when the
sun does not shine to be bridged.
If an external heat generator is used as a ROTEX heat pump system, only a ROTEX HybridCube is permissible as the primary heat
source.
2.3 Advantages
Optimum water hygiene
Low flow or unheated zones on the domestic water side are completely excluded with the Hot water storage tank. It is impossible
for sludge, rust or other sediments to be deposited, as can be the case with other large volume tanks. The water which is fed
into the system first is also discharged first (first in, first out principle).
Low maintenance and corrosion
The Hot water storage tank is made of plastic and is completely corrosion-free. Sacrificial anodes or similar anti-corrosion units
are not necessary. This means that associated maintenance work, e.g. changing the protective anodes or cleaning the storage
tank, does not need to be carried out on the Hot water storage tank. Only the fill level of the storage tank water needs to be
checked.
The corrugated stainless steel pipe heat exchangers on the heating and domestic water side are made from high quality stainless
steel (1.4404).
Low scaling
On the storage tank side only one deposition of scale is possible. The immersion heater element therefore remains clean, as do
the stainless steel heat exchanger pipes in the storage tank water. This means that no scale can build up which would continu-
ously reduce the efficiency of heat transfer in the course of operation (as is the case with other storage tank designs).
The thermal and pressure expansion and high flow rates in the domestic water heat exchanger release any possible scale deposits,
which are then flushed away.
Economical operation
The full-area heat insulation of the storage tank ensures very low heat losses in use and means that the best use is made of the
heat energy being applied.
Modular extension facility
If the heat output of a single Hot water storage tank is not adequate, you can interconnect several storage tanks.
Electronic control
A control system integrated in the heat generator controls all heating and hot water functions for the direct heating circuit, a
mixed heating circuit which can be connected as an option and a tank charge circuit.
–SCS: Settings, displays and functions of the solar heating are e.g. carried out by the regulating and pump station RPS3.
–HYC: For the connection to a ROTEX heat pump system, the setting and adjustment of the solar heating, in addition to
the control and pump station RPS3, via the controller integrated in the heat pump.

2 xProduct description
11
FA ROTEX SC+HYC - 10/2009
2.4 Accessories
2.4.1 Electric immersion heater elements
In addition to the heating possibilities via the corrugated stainless steel pipe heat exchanger from various different heat sources
and energy carriers, the Hot water storage tank can also be charged using an electric immersion heater element.
2.4.2 Non return flow valves
In order to prevent heat losses from the connection pipes when the heating pump is switched off and during periods without
domestic water being drawn off (gravity circulation), you should fit non return flow valves (set - 2 pcs, 16 50 70) in the
connections to the Hot water storage tank.
2.4.3 Dirt filter
If the Hot water storage tank 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 overheating or corrosion. This can be
prevented by fitting a dirt filter.
– for devices up to 28 kW: SFR 28 ( 15 60 11)
– for devices up to 50 kW: SFR 50 ( 15 60 12)
2.4.4 Scalding protection
There is a danger of scalding at hot water temperatures over 60 °C. Fitting scalding protection enables the hot water temper-
ature to be varied continuously and limited from 35 - 60 °C.
– Scalding protection VTA 32 ( 15 60 15)
– Screw fittings set 1" ( 15 60 16)
2.4.5 Thermometer Set
The thermometer THSS ( 16 50 20) can be fitted for analogue display of the storage tank temperature.
2.4.6 Solaris storage tank extension set
ROTEX can supply the following components for interconnection of several ROTEX Sanicube Solaris to the ROTEX Solaris instal-
lation:
– Solaris storage tank extension set CON SX ( 16 01 07)
– Solaris FlowGuard ( 16 41 02)
– Solaris FlowSensor FLS20 ( 16 41 07), FlowSensor FLS100 ( 16 41 03)
– Equalisation pipe for connection of 2 storage tanks AGL ( 16 01 08)
Type EHS/500/1 EHS/500/5 EHS/500/6 EHS/500/7
Operating voltage 230 V / 50 Hz 230/400 V / 50 Hz 230/400 V / 50 Hz 230 V / 50 Hz
Heating output 2 kW 2, 4, 6 kW 2, 4, 6 kW 3 kW
Temperature range 1) 35-65 °C 30-78 °C 30-78 °C 35-65 °C
Cable length 1.5 m — — —
Heating element length 1.4 m 1.4 m 1.1 m 0.9 m
Screw-in thread R 1½" R 1½" R 1½" R 1½"
Suitable for all SC + SCS2) all SC + SCS2) for SCS only all HYC
16 51 31 16 51 35 16 51 36 16 51 373)
Tab. 2-1 Electric immersion heater elements - overview and technical data
1) Temperature regulation and a safety temperature limiter (STB) are already integrated in the electric immersion heater element. The
electric immersion heater element is delivered ready for installation.
2) The longer heating element in the SCS means that the Solar zone is also heated if electric charging is used. This can reduce the efficiency
of the Solaris system.
3) The EHS/500/7 is contained in the respective "E-PAC" of the ROTEX HybridCube as standard.

3 xSet-up and installation
12 FA ROTEX SC+HYC - 10/2009
3 Set-up and installation
3.1 Hydraulic system connection
3.1.1 Sanicube (SC) / Sanicube Solaris (SCS)
Fig. 3-1 Standard connection schematic drawing Hot water storage tank1)
Fig. 3-2 Standard connection schematic drawing Hot water storage tank Solaris1)
Explanation of legend, see Page 14
SC 538/16/0
M
M
1000
1
2
34
24
4.1
4.3
4.2
5
6
7
8
910
12 13
14
14
15
16
18
19
17
H1Hm ......
1
2
3
6
9
10
12 13
14
15
1818
H
1
H
m
......
SCS 538/16/0
M
M
700
7
8
14
16
19
19
19
17
17
5
23
21 22
20
4
4.1
4.3
4.2

3 xSet-up and installation
13
FA ROTEX SC+HYC - 10/2009
Fig. 3-3 Standard connection schematic diagram for connecting several Hot water storage tank (SC) (large scale installations) 1)
Fig. 3-4 Standard connection schematic diagram for connecting several Hot water storage tank Solaris (SCS) (large scale installations) 1)
Explanation of legend, see Page 14
M M
17
H1Hm
......
11
14 8
16
14 14
910
1
2
6
14 15
12
13
7
SC1SC2SCn
181818
24 24 24
5
M
M
SCS
1
SCS
2
SCS
n
SCS
(n-1)
17
H
1
H
m
......
11
14 8
23 23
16
14 14
10
9
1
2
614 15
20
18 18 18
13
20
7
5
12
2424

3 xSet-up and installation
14 FA ROTEX SC+HYC - 10/2009
3.1.2 HybridCube (HYC)
1 Boiler (e.g. ROTEX A1)
2 Boiler circuit pump
3 3-way diverter valve heating
circuit/storage charging circuit
4 Hot water storage tank
4.1 Storage tank
4.2 Tank primary heat exchanger

(stainless steel corrugated pipe)
4.3 Domestic water heat exchanger

(stainless steel corrugated pipe)
5 Storage tank sensor (recharge)
6 Cold water connection
7 Hot water draw-off point
8 Circulation pump (optional)
9Heating flow
10 Heating return flow
11 Storage charging pump (only with
several storage tanks connected
together)
12 Storage tank feed
13 Storage tank return flow
14 Non-return valve
15 Safety overpressure valve cold water
feed
16 Scalding protection (at storage tank
temperatures >60 °C)
17 Cold water distribution network
18 Convection brake (accessory)
19 Air vent (accessory)
20 Control and pump unit for Solaris
system
21 Solaris feed
22 Solaris return flow
23 Solaris high-efficiency flat solar panel
24 Safety overflow connection
(accessories: Thermometer)
SC1, SC2, SCn
ROTEXSanicube
SCS1, SCS2, SCSn-1,SCSn
ROTEX Sanicube Solaris
H1, Hm
Heating circuits
1) No claims are made for the
completeness of the installation
diagram shown, and it is no substitute
for careful installationplanning.
Tab. 3-1 Legend from Fig 3-1 to Fig 3-4
Fig. 3-5 Standard connection diagram Hot water storage tank (represented with HPSU heat exchanger, version with only room heating
function)1)
Tmax=55°C
RLB
AB
A
B
M

3 xSet-up and installation
15
FA ROTEX SC+HYC - 10/2009
1 Fluid line coolant circuit
2 Gas line coolant circuit
3 Heating feed
4Heating return flow
5 Storage tank feed
6 Storage tank return flow
7 Heating support feed
8 Heating support return flow
9 Solaris feed
10 Solaris return flow
3UV1 3-way diverter valve heating
circuit/storage charging circuit
3UV1 3-way diverter valve heating
circuit/coolant circuit
BV Safety overpressure valve heating
C Circulation pump
CW Cold water feed
DHW Hot water tap point
E Expansion valve
EHS Booster heater (electric immersion
heater element)
HP-TR
Main controller heat pump
HYC HybridCube hot water storage tank
PS1 Circulation pump Solaris
PS2 Booster pump Solaris
RPS3 Control and pump unit for Solaris
system
RKHB Internal unit of the HPSU heat pump
RRHQ External unit of the HPSU Heat pump
RT Room thermostat
SK Solaris high-efficiency flat solar panel
SV Safety overpressure valve cold water
feed
VFan
VS Scalding protection (at storage tank
temperatures >60 °C)
1) No claims are made for the
completeness of the installation
diagram shown, and it is no substitute
for careful installationplanning.
Tab. 3-2 Legend for Fig 3-5 and Fig 3-6
Fig. 3-6 Standard connection diagram Hot water storage tank (represented with HPSU heat exchanger, version with room heating and
cooling function)1)
Tmax=55°C
RLB
AB
A
B
M

3 xSet-up and installation
16 FA ROTEX SC+HYC - 10/2009
3.2 Set-up
Incorrect set-up and installation would render the manufacturer's guarantee void. If you have questions, please contact our Tech-
nical Customer Service.
Prerequisite
The installation site meets the applicable national requirements.
CAUTION!
• Only erect the ROTEX Sanicube / HybridCube if a ground load-bearing capacity of 1050 kg/m² plus
safety factor is guaranteed. The ground must be flat and level.
• Erection outdoors is only possible to a limited extent. The storage tank may not be exposed to continuous
direct sunlight, as the UV radiation and the effects of the weather will damage the plastic.
• The ROTEX Sanicube / HybridCube must be protected from frost.
• Make sure that the supply company does not provide corrosive domestic water.
– Appropriate water treatment may be required.
HYBRIDCUBE
Permitted lengths of the pipes between the HybridCube hot water storage tank and the hydraulic connections
on the HPSU heat pump (see Installation and operating instructions for the HPSU heat pump as well as for the
respective storage tank connect set "E-PAC").
• Remove the packaging Dispose of the packing in an environmen-
tally-responsible manner.
• Transport the Hot water storage tank carefully, using the
handles provided.
• Install the Hot water storage tank at the installation site. Recom-
mended wall distance of 200 mm must be observed.
• When using an electric immersion heater element (booster heater)
(see Chapter 2.4.1 „Electric immersion heater elements“), it
must be screwed into the cover opening in the Hot water storage
tank (see Fig 3-7 and Fig 3-8, Item 18).
– If headroom is restricted, tilt the Hot water storage tank until
the electric immersion heater element can be fitted without
damage.
Fig. 3-7 Installation position electric immersion heater
element (shown on the Sanicube Solaris)
Do not switch on the power supply for the electrical
immersion heater element until the ROTEX Sanicube
/ HybridCube is filled.
21

3 xSet-up and installation
17
FA ROTEX SC+HYC - 10/2009
3.3 Installation
3.3.1 Overview of connections
Sanicube (SC) / Sanicube Solaris (SCS)
HybridCube (HYC)
1 Solaris - flow (1“ union nut) (SCS only)
2 Cold water supply (1“ male)*
3 Hot water (1“ male)*
4 Tank charge feed (SC - "heating 1“; SCS - "heating 2“) (1“ AG)*
5 Tank charge return flow (SC - "heating 1“; SCS - "heating 2“) (1“ AG)*
6 Tank charge feed (2nd heat source - "heating 3“) (1“ AG)*
7 Tank charge return flow (2nd heat source - "heating 3“) (1“ AG)*
8 Solar support to heating system flow (SCS 538/xx/xx only) (1“ male)*
(Connect to heating return to boiler!)
9 Solar support to heating system return (SCS 538/xx/xx only) (1“ male)*

(Connect to heating return from system!)
10 Storage tank (double-walled jacket made of polypropylene with PUR
hard foam thermal insulation)
11 Filling and drain connection (Tr. 32

x3 male) with valve insert (SCS: Solaris return flow)
12 Connection for equalising pipe (AGL, 16 01 08) or extension set for
another heat source (EWS, 16 01 10)
18 Connection for electric immersion heater element (R 11/2“ female)
20 Filling level indicator
22 Sensor immersion sleeve for storage tank temperature sensor
26 Type plate
27 Safety overflow connection (Tr. 32x3 male)
28 Handle
* Recommended accessories (non return valves (2 pcs), 16 50 70)
Fig. 3-8 External connections (shown on Sanicube SCS)
1 Solaris - flow (1“ swivel nut)
2 Cold water supply (1“ male)*
3 Hot water (1“ male)*
4 Tank charge flow (1“ male)*
5 Tank charge return flow (1“ swivel nut)*
6 Heating support return flow (1“ ÜM)* only HYC 544
7 Heating support return flow (1“ AG)* only HYC 544
10 Storage tank (double-walled jacket made of polypropylene with PUR
hard foam thermal insulation)
11 Filling and drain connection (Tr. 32

x3 male) with valve insert (Solaris return flow)
12 Connection for equalising line (AGL, 16 01 08)
18 Solaris flow multilayer pipe
19 Filling level indicator
20 Booster Heater (EHS)
21 Dip sensor sleeve for tank temperature sensor
25 Type plate
26 Safety overflow connection (Tr. 32x3 male)
27 Handle
* Recommended accessories (non return valves (2 pcs), 16 50 70)
Fig. 3-9 External connections (shown on HYC 544*)
1
245 6
7
3
8
918
22
26
27
20
10
28
12
11

3 xSet-up and installation
18 FA ROTEX SC+HYC - 10/2009
3.3.2 Instructions for water connection
• For domestic water pipes, observe the stipulations of EN 806 and EN 1717.
• The position and dimensions of the connections can be found in Fig 3-8 / Fig 3-9.
• Carefully lag the hot water pipes to prevent heat loss. The thermal insulation needs to be at least 20 mm thick to prevent
condensation from forming on the surface of the insulation material.
• Check the cold water connection pressure (maximum 6 bar).
– If a higher pressure is present in the domestic water pipe, a pressure reducer will need to be installed.
• Connect the pressure relief line to the safety pressure relief valve and the membrane expansion tank as per EN 12828.
• Install the hot water storage tank near to the removal point to dispense with the need for a circulation pipe. If a circulation
pipe is essential, then it must be installed in accordance with the schematic drawing in Fig 3-1, Fig 3-2, Fig 3-3 or Fig 3-4.
–Avoid deposits: Observe the regulations in VDI 2035 in order to avoid corrosive products and deposits. If the filling and addi-
tional water has a high degree of hardness, measures must be taken to stabilise this hardness or soften the water.
3.3.3 Hydraulic connection
1. Only with connection of a HybridCube hot water tank to an HPSU heat pump:
• Attach the storage tank connecting set E-PAC" to the HybridCube hot water tank (see the respectively supplied instal-
lation and operating instructions of the storage tank connecting set).
2. When using non return valves (see Chapter 2.4.2 „Non return flow valves“), these should be fitted in the pipe connections
on the ROTEX Sanicube / HybridCube.
3. Drainage hose with the connection of the safety overflow (Fig 3-8 / Fig 3-9) to the hot water storage tank.
– Use transparent drain hose (draining water must be visible).
– Connect the drain hose to an adequately dimensioned waste water installation.
– Drain should not be lockable.
4. Check the water pressure at the cold water connection (<6 bar).
ÎIf the pressure in the domestic water supply is greater, then fit a pressure reducer and limit the water pressure to
<6 bar.
5. Establish connection to the cold water feed of the hot water storage tank (Fig 3-8 / Fig 3-9, connection 2).
6. Establish connections to the hot water distribution network (Fig 3-8 / Fig 3-9, Connection 3).
WARNING!
There is a danger of scalding at water temperatures >60 °C. This can arise with solar energy utilisation if
the Legionella protection is activated or if the target temperature is set to >60 °C.
• Fit scalding protection (see Chapter 2.4.4 „Scalding protection“).
CAUTION!
If the Hot water storage tank 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
overheating or corrosion.
• Flush the feed pipes before filling the heat exchanger.
• Rinse out the heat distribution network (in the existing heating system).
• Fit dirt filter in the heating return pipe (see Chapter 2.4.3 „Dirt filter“).
To prevent heat loss from the connection pipes when the heating pump is switched off and during periods when
no domestic water is drawn off (gravity circulation), you should fit non return valves (see chapter 2.4.2) in
the connections to the ROTEX Hot water storage tank.

3 xSet-up and installation
19
FA ROTEX SC+HYC - 10/2009
7. Establish connections to the heating circuit.
–Sanicube: When the hot water tank is connected on the heating side, it is essential to ensure that the air is properly bled
from the tank charge lines (e.g. use of automatic air vents on connections 4 to 9, Fig 3-8).
–HybridCube: The connection of the hot water tank on the heating side must be established according to the specifica-
tions of the installation and operating instructions for the respective storage tank connecting set (E-PAC). It must be
ensured that the storage tank charge lines are properly bled of air.
8. Establish connections to the heat generator.
–Sanicube: Connections should be established according to the corresponding design scheme (Fig 3-1 to Fig 3-4) to the
heat generator.
–HybridCube: In conjunction with an HPSU heat pump, the connection of the hot water storage tank must be set up
according to the specifications of the installation and operating instructions of the respective storage tank connecting
set (E-PAC).
–In the case of bivalent firing the connections should be set up in accordance with the connecting diagrams in the instal-
lation and operating instructions of the respective controllers.
–Optional: Establish connections to the Solaris System (see Solaris installation and maintenance instructions).
3.3.4 Connection of several Sanicube storage tanks
If the heat output of a single ROTEX Sanicube is not adequate to connect several ROTEX Hot water storage tank in a modular
fashion.
This means that both the stainless steel heat exchangers for post-heating and the hot water heat exchangers are interconnected
in accordance with the Tichelmann principle (Fig 3-3 SCS: Fig 3-4).
With seasonal variations in demand these individual units can be added or taken out of service accordingly. In this way the total
hot water output can be manually matched to the actual demand.
In Chapter 6.2 „Performance diagrams“ you can see what efficiency characteristics can be achieved by interconnecting several
ROTEX Sanicube / HybridCube units.
Only for Sanicube Solaris:
1 Sanicube Solaris
2 Control and pump unit RPS3
3 Solaris - flow manifold
4 T-connecting piece
AGL Equalisation pipe
CON SX A Storage tank extension set (bottom)
CON SX B Storage tank extension set (top)
FLG FlowGuard
FLS FlowSensor
For the interconnection of several Sanicube
Solaris units you can purchase theSolaris
StorageTank Extension Set CON SX, the equali-
sation pipe AGL, and the Solaris FlowGuards and
the Solaris FlowSensor. For purchasing infor-
mation see Chapter 2.4.6 „Solaris storage
tank extension set“.
The fitting and operation of these accessoriesis
described in detail in the Solaris operating and
installation instructions.
Fig. 3-10 Schematic drawing of the Solaris storage tank extension equipment

3 xSet-up and installation
20 FA ROTEX SC+HYC - 10/2009
3.3.5 Filling the hot water heat exchanger
1. Open shutoff device of cold water line.
2. Open bleeding point for hot water so that as little bleeding as possible can be set.
3. Once water has been discharged from the tap connections, do not interrupt the cold water feed; this will ensure that the
heat exchanger will be fully vented and that any impurities or residue will be discharged.
3.3.6 Filling the storage tank (without Solaris System installed)
1. Connect the filler hose with back flow preventer (½") via the hose connector provided to the filling and drain connection
(Fig 3-8 - Fig 3-9, Item 11).
2. Fill the storage tank of the ROTEX Sanicube / HybridCube until water comes out of the connection of the safety overflow
(Fig 3-8 / Fig 3-9).
3.3.7 Filling the storage tank (with Solaris System installed)
1. Connect the filling hose with return flow inhibitor (½") to the boiler filling and draining valve on the Solaris control and pump
unit (RPS3).
2. Fill storage tank of the ROTEX Sanicube / HybridCube until water flows out of the connection of the safety overflow 
(Fig 3-8 / Fig 3-9).
3.3.8 Filling the heating system and the storage tank charging circuit
• Fill and bleed the heating system and tank charge circuit in accordance with the installation and operating instructions for
the particular heat generator.
3.3.9 Connecting the electric immersion heater element (accessories)
EHS/500/1
The EHS/500/1 is delivered ready to plug in.
1. Check the power supply voltage of the mains connection (~230 V, 50 Hz).
2. Insert the mains plug of the electric immersion heater element into the plug socket.
EHS/500/5 and EHS/500/6
1. Check the power supply voltage of the mains connection (~230/400 V, 50 Hz).
2. Disconnect the junction box of the domestic electrical installation.
3. Install the electric cabling between the mains connection and the electric immersion heater element.
WARNING!
Touching live parts can result in an electric shock and lead to potentially fatal injuries and burns.
• Before beginning work on live parts, disconnect them from the power supply (switch off fuse, main
switch) and secure against unintentional restart.
• Electrical connection and work on electrical components must only be carried out by qualified electricians
in compliance with valid standards and guidelines as well as the specifications of the energy supply
company.
• Equipment covers and service flaps must be replaced as soon as the work is completed.