Regulus NBC 170 HP User manual

www.regulus.eu
NBC 170 HP
NBC 170 HP
EN
Installation and Operation Manual
HOT WATER STORAGE TANK
NBC 170 HP

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NBC 170 HP - www.regulus.eu
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 Technical Data and Dimensions of NBC 170 HP .......................................................................... 4
4 Operation .......................................................................................................................................... 6
5 Examples of Assigning Connection Points ................................................................................... 6
6 Installation and Commissioning .................................................................................................... 7
7 Tank Insulation ................................................................................................................................. 7
8 Maintenance ..................................................................................................................................... 8
9 Disposal ............................................................................................................................................ 8
10 Warranty ........................................................................................................................................... 8

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NBC 170 HP - www.regulus.eu
1 - Description
NBC Hot Water Storage Tank with one stainless-steel heat exchanger, G 3/4“ connections (e.g. to connect
a heat pump).
For the correct functioning of the tank it is necessary to optimally design a hot water heating system including
a heat source, safety elements and shut-off valves in compliance with the respective standards and rules.
The hydraulic variant shall be selected respecting the heating controller used. For a connection example, see
Chapter 5 of this document.
1.1 - Models
One model of 162 l total capacity.
1.2 - Tank protection
The entire tank is made of stainless steel which guarantees a ling service life. Further qualitative improvement
is reached thanks to a magnesium anode rod installed inside the tank.
1.3 - Thermal insulation
Tanks are supplied with 50 mm thick EPU insulation, white surface.
1.4 - Connection points on the tank
2× top with G 3/4“ inner thread, for the heating coil
2× top with G 3/4“ inner thread, for cold water inlet and hot water outlet
1× top for temperature sensors, G 1/2”
1× top with G 3/4“ inner thread, for recirculation
1× top with G 3/4“ inner thread, for magnesium anode rod
1× lateral G 1/2“ with drain valve
1.5 - Packaging
Tanks are delivered standing, each screwed to its pallet, packed in bubble wrap.
2 - General Information
The appliance shall be installed by a qualied 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 carefully
the instructions in this Manual as they contain important information concerning safety, installation, operation
and maintenance. Keep this Manual for later reference.
Using the tank for other purposes than stated above is prohibited and the manufacturer accepts no responsibility
for damage caused by improper or wrong use.

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NBC 170 HP - www.regulus.eu
3 - Technical Data and Dimensions of TV NBC 170 HP
Regulus NBC 170 HP Hot Water Storage Tank
code: 17615
pos. connections height [mm]
W1 G 3/4" F 1060 mm
W2 G 3/4" F 1060 mm
W3 G 3/4" F 1060 mm
X1 G 3/4" F 1060 mm
X2 G 3/4" F 1060 mm
C1 G 1/2" F 1060 mm
A1 G 3/4" F 1060 mm
TAPPINGS
DHW heating
Heat source
Control & Safety
Magnesium anode rod
Dimensions

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NBC 170 HP - www.regulus.eu
Main Features
Description
Working fluid
Code
Energy efficiency class
Standing loss
Storage volume
Total tank volume
Fluid volume in tank
Fluid volume in heat exchanger
Heat exchanger surface area
Max. temperature in tank
Max. temperature in heat exchanger
Max. pressure in tank
Max. pressure in heat exchanger
Tank material
Heat exchanger material
Insulation material
Insulation outer surface
Tank diam.
Tank diam. with insulation
Total tank height
Tipping height
Empty weight 42 kg
1075 mm
1233 mm
polyurethane (PU)
Dimensions, tipping height
500 mm
603 mm
95°C
7 bar
15 bar
Materials
stainless steel AISI 316L
stainless steel AISI 304
EPU (expanded polyurethane)
Technical Data
171 l
162 l
9 l
2 m2
95°C
162 l
Main Features
heating of domestic hot water
stainless-steel hot water storage tank with
upward outlets, integrated inner heat exchanger
and drain valve
water (tank); water, water-glycol mixture (max.
1:1) or water - glycerine mixture (max. 2:1) (HE)
17615
Energy Efficiency Data (as per EC Regulation No. 812/2013)
NBC 170 HP
B
42 W
R E G U L U S spol. s r.o. Czech Republic
Do Koutů 1897/3, 143 00 Praha 4
Tel.: [phone]
Fax: [phone]
E-mail: [e-mail]
Web: www.regulus.eu

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NBC 170 HP - www.regulus.eu
4 - Operation
The tank is designed for operation in pressure circuits. Hot water is heated in the tank via the integrated heat
exchanger (heating coil) from e.g. a heat pump.
Hot water temperature should be set to 55-60 °C. This temperature guarantees the best operation and at the
same time, it prevents formation of Legionella bacteria.
5 - Examples of Assigning Connection Points
Table of limit values for total dissolved solids in hot water
Description pH Total dissolved
solids (TDS)
Ca Chlorides Mg Na Fe
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
NBC 170 HP
CH HW Circ CW

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NBC 170 HP - www.regulus.eu
6 - Installation and Commissioning
Installation shall meet valid rules and may be done only by qualied staff. The tank shall be placed on the oor,
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 heating circuits to the inlet and outlet of the heating coil. The heat source connects to the tank using G
3/4” ttings.
6.2 - Connection to water mains
DHW piping shall be made according to valid rules. G 3/4” ttings are used to connect the tank to a cold water
inlet and hot water outlet. A safety kit (code 17387) shall be installed at the cold water inlet. Installation of
a reducing valve to the tank inlet is recommended. If the pressure from water mains exceeds 6 bar, a reducing
valve is necessary. An 8-liter expansion tank shall be installed at the cold water inlet.
Should the water be too hard, install a water softener before the tank. In case the water contains mechanical
impurities, install a strainer.
There is a drain valve at the lowest point of the tank.
Complete DHW piping shall be properly insulated.
6.3 - Electronic anode rod installation
Magnesium anode rod is factory installed in the tank. An electronic anode rod (code 13793) can be installed in
the tank instead of the magnesium one.
6.4 - Commissioning
Earth the tank before commissioning. The earthing screw is located at the marked place. Fill the entire
system with liquids and air-vent. Check all connections for leaks and a system pressure.
The quality of top-up and heating water is set by ČSN 07 7401:1992. Hot water quality must meet the conditions
shown in the Table of limit values for total dissolved solids in hot water, page 7 of this Manual.
It is recommended to maintain the temperature of the hot water in the tank, e.g. by means of a heat pump, in the
temperature range of 48-52 °C. It is recommended to temporarily raise the temperature of the entire hot water
system to 65-70 °C as a protection against the formation of bacteria, especially Legionella. It is recommended
to carry out a temporary temperature increase whenever the hot water supply is shut down for a longer time.
Requirements for the quality and temperature of hot water can be set by a special regulation according to the
methods of hot water use (staff hygiene, hot water for hospitals, educational institutes, technological water,
etc.). Set the parameters of the respective controller according to the manufacturer‘s documentation and
recommendations. Check regularly that all control and adjustment elements are functioning properly.
7 - Tank Insulation
Product description
Thermal insulation is a component of tanks that prevents heat losses. Thermal insulation of EPU with
polyurethane foil is used.
Warning
Do not use open re near the product.

©2019 We reserve the right to errors, changes and improvements without prior notice.
REGULUS spol. sr.o.
E-mail: [e-mail]
Web: www.regulus.eu
v1.1-09/2020
8 - Maintenance
Clean the exterior of the tank with a wet cloth and a suitable detergent.
Never use abrasives, solvents, petroleum-based products, etc.
Check for water leaks at the tank connection points.
9 - Disposal
Packaging 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 Centre.
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 Certicate. A Warranty Certicate is an integral part of the supply.