Regulus R0BC 200 Hot Water Storage Tanks User Manual

Regulus R0BC 200 Hot Water Storage Tanks

Product Information

The R0BC 200 – 3000 hot water storage tanks are a range of high-quality tanks designed for storing and providing hot water. Manufactured by Regulus, these tanks are built to ensure efficient and reliable performance.

Key Features

• Models: R0BC 200, R0BC 300, R0BC 400, R0BC 500, R0BC 750, R0BC 1000, R0BC 1500, R0BC 2000, R0BC 2500, and R0BC 3000
• Tank protection: The tanks feature a protective coating to prevent corrosion and extend the lifespan of the tank
• Thermal insulation: The tanks are equipped with thermal insulation to minimize heat loss and improve energy efficiency
• Connection points: The tanks have designated connection points for easy installation and integration with heat sources, solar systems, water mains, and electronic anode rods
• Packaging: The tanks come securely packaged to prevent any damage during transportation

Product Usage Instructions

Before using the R0BC hot water storage tank, please read and follow the installation and operation manual provided by Regulus. Below are some general usage instructions:

Operation

1. Ensure that the tank is properly connected to the heat source, such as a boiler or heat pump.
2. If you have a solar system, make sure the tank is connected to it as per the instructions provided.
3. Install the heating rod in the tank if required. Follow the installation guidelines mentioned in the manual.
4. Connect the tank to the water mains using the designated connection point.
5. If applicable, install the electronic anode rod as per the provided instructions.
6.  Once all connections are made, proceed with the commissioning process outlined in the manual.

Maintenance

1. Regularly check the tank insulation for any damage or wear. Replace if necessary.
2. The magnesium anode bar inside the tank should be replaced periodically to prevent corrosion. Refer to the manual for replacement guidelines.

Disposal
When disposing of the tank, follow local regulations and guidelines for proper disposal methods.

Warranty
The R0BC hot water storage tanks come with a warranty. Refer to the warranty section in the manual for detailed information on terms and conditions.

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.

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.

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.

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 de tached for easier handling.

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

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.

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 responsibil ity for damage caused by improper or wrong use.

Operation

• This tank is designed for operation in pressure circuits. Hot water is heated inside the tank via external hotwater heat exchangers from several possible heat sources like various kinds of heating boilers, renew able 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.

Technical Data and Dimensions

The lower flange contains an anode rod in tanks: R0BC 1500 – R0BC 3000

• Total tank volume: a [l]
• Max. working temperature – tank: 95 °C
• Max. working pressure – tank: 10 bar
• Empty weight: b [kg]

 | 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
T| G 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

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

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.

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.

• external heat exchangers are not included in the scope of supply of R0BC tanks.

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.

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.

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.

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.

Electronic Anode Kits for R0BC Hot Water Storage Tanks.

For tanks| El. Anode Kit code – replacement| Anode rod length| El. Anode Kit code w. lower flange*| 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.

Commissioning

• Ground the tank before commissioning.
• Hot water quality must meet the conditions shown in the Table of limit values for total dissolved solids in hot water.
• 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

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..

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.

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 months 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.

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.

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 horizontal position is considered a warranty violation!

ABOUT COMPANY

• ©2023 We reserve the right to errors, changes and improvements without prior notice.
• REGULUS spol. s r.o.
• E-mail: sales@regulus.eu
• Web: www.regulus.eu

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