Regulus R0BC 200 User manual

www.regulus.eu
R0BC 200 - 3000
R0BC 200 - 3000
EN
Installation and Operation Manual
HOT WATER STORAGE TANKS
R0BC 200, R0BC 300, R0BC 400, R0BC 500, R0BC 750,
R0BC 1000, R0BC 1500, R0BC 2000, R0BC 2500 a R0BC 3000

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CONTENTS
1 Description ....................................................................................................................................... 3
1.1 Models ................................................................................................................................. 3
1.2 Tank protection ..................................................................................................................... 3
1.3 Thermal insulation ................................................................................................................ 3
1.4 Connection points on the tank ............................................................................................. 3
1.5 Packaging ............................................................................................................................ 3
2 General Information ......................................................................................................................... 3
3 Operation .......................................................................................................................................... 3
4 Technical Data and Dimensions...................................................................................................... 4
5 Typical Installation Example ........................................................................................................... 6
6 Installation and Commissioning .................................................................................................... 7
6.1 Connection to heat sources ................................................................................................. 7
6.2 Connection to a solar system .............................................................................................. 7
6.3 Heating rod installation ........................................................................................................ 7
6.4 Connection to water mains .................................................................................................. 7
6.5 Electronic anode rod installation .......................................................................................... 7
6.6 Commissioning .................................................................................................................... 8
7 Tank Insulation ................................................................................................................................. 9
8 Maintenance, Replacement of Magnesium Anode Bar ................................................................ 10
9 Disposal ............................................................................................................................................ 10
10 Warranty ........................................................................................................................................... 10

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1 - Description
R0BC Hot Water Storage Tank (further “tank“) without heat exchangers, permitting to connect further 2 circuits
through external heat exchangers. The tank also enables installation of an electric heating element and also
another el. heating element or a finned tube heat exchanger into the flange of the lateral inspection hole.
In order to reach proper working of the tank, it is necessary to design optimum hydraulics of the whole system,
i.e. position of circulation pumps for sources and heating circuits, valves, non-return valves etc.
1.1 - Models
Ten models of 212, 297, 420, 513, 763, 885, 1494, 2013, 2508 and 2841 l capacity enabling installation of an
electric heating rod or another heat source.
1.2 - Tank protection
Enameled inner surface guarantees long service life. Enamel is done according to DIN 4753 standard. Further
qualitative improvement is reached thanks to a magnesium anode installed inside the tank.
1.3 - Thermal insulation
Tanks of 200 l volume come with a 50 mm thick insulation, tanks of volume from 300 to 500 l are supplied with
a hard polyurethane insulation 55 mm thick with a white PVC surface. Tanks of 750 and 1000 l are supplied
with a hard polyurethane insulation 75 mm thick with a white PU leather surface. Tanks of volume of 1500 l
and more have the insulation 100 mm thick. The insulation can be detached for easier handling.
1.4 - Connection points on the tank
4× lateral with G 5/4“ inner thread, for 2 circuits with external heat exchangers
2× lateral with G 5/4“ inner thread, for cold water inlet and hot water outlet (from 100 l upwards G 2”)
3× lateral with G 1/2“ inner thread, for temperature sensor and a thermometer
1× lateral with G 1“ inner thread, for recirculation (in tanks of 200, 300, 400 l volume G 3/4“)
1× top with G 5/4“ inner thread, for a magnesium anode rod
1× lateral with G 6/4“ inner thread, for an el. heating element
1× flange for the lateral inspection hole
1.5 - Packaging
Tanks are delivered standing, each screwed to its pallet, packed in bubble wrap. It is forbidden to transport
and/or store the storage tanks in a horizontal position.
2 - General Information
The appliance shall be installed by a qualified person according to valid rules and Manufacturer‘s Instructions.
This Manual is an integral and important part of the product and must be handed over to the User. Read care-
fully the instructions in this Manual as they contain important information concerning safety, installation, opera-
tion and maintenance. Keep this Manual for later reference.
Using the tank for other purposes than stated in this Manual is forbidden and the manufacturer accepts no
responsibility for damage caused by improper or wrong use.
3 - Operation
This tank is designed for operation in pressure circuits. Hot water is heated inside the tank via external hot-
-water heat exchangers from several possible heat sources like various kinds of heating boilers, renewable
energy sources (heat pumps, solar collectors). An electric heating element can be installed into the tank for
DHW auxiliary heating.
Hot water temperature should be kept between 60 and 65°C. This temperature guarantees the optimal opera-
tion of hot water storage tanks and at the same time, it prevents formation of Legionella bacteria.

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4 - Technical Data and Dimensions
Total tank volume: ..................................................................... a [l]
Max. working temperature - tank: .............................................. 95 °C
Max. working pressure - tank: ................................................... 10 bar
Empty weight: ............................................................................ b [kg]
The lower flange contains an anode rod in tanks: R0BC 1500 - R0BC 3000
V
ø O
ø P

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R0BC
200
R0BC
300
R0BC
400
R0BC
500
R0BC
750
R0BC
1000
R0BC
1500
R0BC
2000
R0BC
2500
R0BC
3000
code 10586 10571 10587 8795 10364 10365 16715 16716 10501 8901
a [l] 212 297 420 513 763 885 1494 2013 2508 2841
b [kg] 52 59 80 120 192 213 342 404 523 576
V [mm] 1265 1710 1690 1780 1870 2120 2285 2550 2680 2980
øO [mm] 600 610 710 760 950 950 1200 1300 1400 1400
øP [mm] 500 500 600 650 790 790 1000 1100 1200 1200
Static loss [W] 74 88 105 116 121 125 146 172 330 354
anode
code
4025
9174*
13112***
4025
9174*
13112***
448
9174*
13112***
17432#
448
9174*
13112***
17432#
464
17372*
13112***
17428#
3698
17372*
13112***
17428#
464
14429*
13112***
17435#
448**
3698
14429*
13112***
17435#
464**
3698
14429*
13112***
17435#
464**
3698
14429*
13112***
17435#
464**
tipping
height [mm]] 1405 1820 1830 1940 2100 2330 2590 2870 3030 3300
* electronic anode rod *** magnesium anode rod, chain type
#electronic anode rod with flange ** magnesium anode rod for the lower flange
CONNECTIONS
R0BC200 R0BC300 R0BC400 R0BC500 R0BC750 R0BC1000 R0BC1500 R0BC2000 R0BC2500 R0BC3000
pos. conn. height
[mm] conn. height [mm] conn. height [mm] conn. height [mm] conn. height [mm] conn. height [mm] conn. height [mm] conn. height [mm] conn. height [mm] conn. height [mm]
DHW heating
W1 G 6/4“ F 110 G 6/4“ F 110 G 6/4“ F 120 G 6/4“ F 175 G 6/4“ F 220 G 2“ F 220 G 2“ F 315 G 2“ F 340 G 2“ F 430 G 2“ F 430
W2 G 6/4“ F 1120 G 6/4“ F 1565 G 6/4“ F 1540 G 6/4“ F 1595 G 6/4“ F 1590 G 2“ F 1840 G 2“ F 1935 G 2“ F 2210 G 2“ F 2250 G 2“ F 2550
W3 G 3/4“ F 884 G 3/4“ F 1141 G 3/4“ F 1163 G 1“ F 1235 G 1“ F 1235 G 1“ F 1235 G 1“ F 1460 G 1“ F 1650 G 1“ F 1740 G 1“ F 2040
El. heating elements
E1 G 6/4“ F 629 G 6/4“ F 914 G 6/4“ F 891 G 6/4“ F 949 G 6/4“ F 890 G 6/4“ F 890 G 6/4“ F 1255 G 6/4“ F 1310 G 6/4“ F 1400 G 6/4“ F 1400
Regulace a zabezpečení
C1 G 1/2“ F 914 G 1/2“ F 1214 G 1/2“ F 1245 G 1/2“ F 1285 G 1/2“ F 1340 G 1/2“ F 1340 G 1/2“ F 1600 G 1/2“ F 1825 G 1/2“ F 1905 G 1/2“ F 2205
C2 G 1/2“ F 474 G 1/2“ F 654 G 1/2“ F 660 G 1/2“ F 685 G 1/2“ F 685 G 1/2“ F 685 G 1/2“ F 945 G 1/2“ F 985 G 1/2“ F 1075 G 1/2“ F 1075
TG 1/2“ F 929 G 1/2“ F 1384 G 1/2“ F 1411 G 1/2“ F 1480 G 1/2“ F 1460 G 1/2“ F 1680 G 1/2“ F 1825 G 1/2“ F 2090 G 1/2“ F 2130 G 1/2“ F 2430
Solar thermal system
U1 G 5/4“ F 994 G 5/4“ F 1294 G 5/4“ F 1361 G 5/4“ F 1335 G 5/4“ F 1440 G 5/4“ F 1440 G 5/4“ F 1735 G 5/4“ F 2000 G 5/4“ F 2040 G 5/4“ F 2430
U2 G 5/4“ F 679 G 5/4“ F 979 G 5/4“ F 1011 G 5/4“ F 985 G 5/4“ F 990 G 5/4“ F 990 G 5/4“ F 1330 G 5/4“ F 1450 G 5/4“ F 1540 G 5/4“ F 1790
U3 G 5/4“ F 579 G 5/4“ F 849 G 5/4“ F 846 G 5/4“ F 865 G 5/4“ F 835 G 5/4“ F 835 G 5/4“ F 1180 G 5/4“ F 1160 G 5/4“ F 1250 G 5/4“ F 1300
U4 G 5/4“ F 264 G 5/4“ F 264 G 5/4“ F 286 G 5/4“ F 305 G 5/4“ F 385 G 5/4“ F 385 G 5/4“ F 470 G 5/4“ F 460 G 5/4“ F 550 G 5/4“ F 550
Flange
L1 8 x M10 257 8 x M10 257 8 x M10 268 8 x M10 335 8 x M10 400 8 x M10 400 8 x M10 520 8 x M10 550 8 x M10 640 8 x M10 640
Magnesium anode rod
A1 G 5/4“ F 1240 G 5/4“ F 1675 G 5/4“ F 1656 G 5/4“ F 1742 G 5/4“ F 1800 G 5/4“ F 2069 G 5/4“ F 2205 G 5/4“ F 2470 G 5/4“ F 2600 G 5/4“ F 2900
A2 - - - - - - - - - G 5/4“ F 520 G 5/4“ F 550 G 5/4“ F 640 G 5/4“ F 640

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5 - Typical Installation Examples
DHW heating by solar collectors, auxiliary heating by an el. heating element
KEY 1 – R0BC hot water storage tank 2 – pump station for DHW heating – CSE OTS ZV 3 – DV stainless-steel plate heat exchanger 4 – CSE SOL solar pump station 5 – solar expansion vessel 6 – solar collectors 7 – pump station for DHW recirculation – CSE TVMIX ZV 8 – safety kit for HW storage tank 9 – DHW expansion vessel 10 – el. heating element SV – cold water TV – hot water CV – hot water recirculation KK – ball valve ZV – check valve AOV – automatic air vent valve PTR – pressure temperature relief valve PV – safety valve REDV – pressure reducing valve (optional) VK – drain valve SVE – expansion vessel service valve

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6 - Installation and Commissioning
Installation must meet valid rules and may be done only by qualified staff. The tank shall be placed on the
floor, as close to the heat source as possible.
Warning: Defects caused by improper installation, use or handling are not covered by warranty.
6.1 - Connection to heat sources
Connect the heat source to the inlet and outlet of the external heat exchanger*. The heat source for the tank -
external heat exchanger - connects to two pipe sleeves marked U1, U2 or U3, U4 using G 5/4“ fittings.
6.2 - Connection to a solar system
This tank can also be used with a solar thermal system. In such a case, the inlet from a solar thermal system
connects to two lower G 5/4“ pipe sleeves marked U3 and U4 via the external heat exchanger. The lower sle-
eve U4 connects to the return piping from the external solar heat exchanger, the upper sleeve U3 connects to
the incoming heated fluid from the external heat exchanger (see Chap. 5). Insulate all the piping between the
tank and the solar thermal system.
6.3 - Heating rod installation
The G 6/4“ side connection marked E1 is designed to accommodate an electric heating element. A heating
elements of output up to 12 kW can be used (depending on the tank diameter and element length), connected
either directly to the mains (thermostat-equipped elements), or via a heating system controller. The installation
may be done by qualified staff only.
Warning: Electric heating elements shall be protected by a safety thermostat.
6.4 - Connection to water mains
DHW piping shall be done according to valid rules. Pipe fittings are used to connect the tank to a cold water
inlet and hot water outlet. Install a 6 bar safety valve at the cold water inlet. Installation of a pressure reducing
valve to the tank inlet is recommended. If the pressure from water mains exceeds 6 bar, a pressure reducing
valve is necessary. In order to prevent water loss, an expansion vessel should be installed at the cold water
inlet as well (8 l volume for R0BC 200, 12 l volume for R0BC 300, 18 l volume for R0BC 400, 24 l volume for
R0BC 500, 35 l volume for R0BC 750, 50 l volume for R0BC 1000, 80 l volume for R0BC 2000, 100 l volume
for R0BC 2500 and 2×60 l volume for R0BC 3000). Should the water be too hard, install a water softener befo-
re the tank. In case the water contains mechanical impurities, install a filter.
A pressure temperature relief valve (PTR) shall be installed at the hot-water outlet from the tank - e.g. code
17240 with a connection kit 17526. It is also recommended to install a corresponding anti-scald valve that
prevents too hot water from entering the taps.
Install a drain valve to the lowest point of the tank.
Complete DHW piping shall be properly insulated.
6.5 - Electronic anode rod installation
An electronic anode rod can be installed instead of the magnesium one. Its principle advantage is that it is
not necessary to dismantle it from the tank to determine its function. In such a case, just visual check of the
electronic anode rod is sufficient.
A space equal to the el. anode length is needed between the tank top and ceiling to install/replace the electro-
nic anode rod, see the table below. In order to protect the tank properly and meet its warranty conditions,
select the proper electronic anode rod from the table below.
* external heat exchangers are not included in the scope of supply of R0BC tanks.

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Electronic Anode Kits for R0BC Hot Water Storage Tanks.
6.6 - Commissioning
Hot water quality must meet the conditions shown in the Table of limit values for total dissolved solids in
hot water.
Fill the heating circuits with the appropriate fluids and air-bleed the entire system. Check all connections for
leaks and verify the system pressure. Set the heating controller in compliance with the documentation and
manufacturer’s recommendations. Check regularly a proper function of all control and adjusting elements..
For tanks El. Anode
Kit code -
replacement
Anode rod length El. Anode Kit
code w. lower
ange*
Anode rod length
R0BC 200, R0BC 300 9174 500 (350/150) - -
R0BC 400, R0BC 500 9174 500 (350/150) 17432 500 (350/150) + 350 (200/150)
R0BC 750, R0BC 1000 17372 800 (550/250) 17428 800 (550/250) + 450 (200/250)
R0BC 1500, R0BC 2000
R0BC 2500, R0BC 3000
14429 800 (550/250) + 600 (350/250) 17435 800 (550/250) + 600 (350/250)
* The Kit shall be used when an electric heating element needs to be installed in the lower flange.
Table of limit values for total dissolved solids in hot water
Description pH Total dissolved solids (TDS) Ca Chlorides Mg Na Na
Max. value 6.5 - 9.5 600 mg/l 40 mg/l 100 mg/l 20 mg/l 200 mg/l 0.2 mg/l

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7 - Tank Insulation
Product description
Thermal insulation is a component of tanks that prevents heat losses. Thermal insulation of polyurethane foam
with zipped PVC layer is used.
Warning
Insulation dismantling and installation shall be done in two or three persons, depending on its size. The foam
insulation with zipper must not be dismantled/installed at temperatures below 20 °C. If this cannot be
avoided, the insulation shall be pre-warmed in another room to at least 20 °C. It is impossible to install insulation
of lower temperature, there is a risk of damage, esp. to the zipper.
Do not use any tools for installation.
Keep away from open fire.
Warranty on insulation
□ Warranty shall become null and void if:
○ the product was used for other purposes than intended.
□ Warranty does not cover:
○ usual wear and tear,
○ damage caused by fire, water, electricity or a natural disaster,
○ defects caused by failure to use the product in compliance with its intended purpose,
by improper use and insufficient maintenance,
○ defects caused by mechanical damage to the product,
○ defects caused by tampering or incompetent repair.

8 - Maintenance, Replacement
of Magnesium Anode Rod
If the tank is fitted with a heating element, disconnect it from the mains first. Clean the exterior of the tank with
a soft cloth and a mild detergent. Never use abrasive cleaners or solvents.
Check all connections for leaks. The tanks come equipped with an anti-corrosion sacrifice magnesium anode
rod as standard; it protects its inner parts against corrosion. The anode rod shall be checked within 12 mon-
ths after commissioning and subsequently always not later than 12 months after the last check. In locations
where water contains more ferrites or calcites, it is recommended to check the anode every 6 months. If more
than 1/3 of its total volume is consumed, the anode shall be replaced with a new one. Disregarded of its state,
the anode rod shall be replaced with a new one within 24 months from commissioning. In case an electronic
anode is used, the above described procedures are not necessary. Then only a visual check of the indication
lamp is necessary every 3 months. Indication of the proper working of the electronic anode rod is described in
its Installation and Operation Manual. If damage to a tank occurs due to neglected substitution of a magnesi-
um anode rod or a non-working electronic anode rod, warranty cannot be claimed.
9 - Disposal
Packing shall be disposed of in compliance with the valid rules. When the product reaches the end of its life, it
shall not be disposed of as household waste. It shall be dropped off at a Local Waste Recycling Center.
Insulation shall be recycled as plastic and the steel vessel as scrap iron.
10 - Warranty
This product is covered by warranty according to the conditions described in this Manual and according to the
Warranty Certificate. A Warranty Certificate is an integral part of the supply. Tank transport or storing in a hori-
zontal position is considered a warranty violation!

©2022 We reserve the right to errors, changes and improvements without prior notice.
REGULUS spol. s r.o.
E-mail: [email protected]
Web: www.regulus.eu
v1.5-05/2022