Regulus HSK 600 P User manual

HSK P 600-1700
HSK P 600-1700
EN
Installation and Operation Manual
THERMAL STORES with stainless-steel DHW tube
heat exchanger
HSK 600 P, HSK 750 P, HSK 1000 P, HSK 1700 P
www.regulus.eu

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CONTENTS
1 Description ..................................................................................................................................................... 3
1.1 Models ............................................................................................................................................... 3
1.2 Tank protection ................................................................................................................................... 3
1.3 Thermal insulation ............................................................................................................................. 3
1.4 Packaging .......................................................................................................................................... 3
2 General Information ....................................................................................................................................... 3
3 Technical Data and Dimensions of HSK P Model Line ............................................................................... 4
4 Operation ........................................................................................................................................................ 5
5 Typical Layout Examples with Thermal Store ............................................................................................. 5
6 Installation and Commissioning ................................................................................................................... 6
7 Installing Insulation on the Tank .................................................................................................................. 6
8 Maintenance ................................................................................................................................................... 8
9 Disposal .......................................................................................................................................................... 8
10 Warranty .......................................................................................................................................................... 8

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1 - Description
HSK P Thermal Stores are intended for storing and subsequent distribution of thermal energy of heating water. They
are fitted with a stainless-steel tube DHW heat exchanger, permitting installation of electric heating elements and
connection of other heat sources. For a better thermal layering, the tank volume is separated by a baffle.
For proper operation of a tank, it is necessary to have an optimum hydraulic design of the entire heating system, i.e.
position of circulation pumps for both heat sources and heating circuits, valves, check valves etc. When more heat
sources shall be combined, it is recommended to use a smart controller for both the heat source and heat sink sides
of a heating circuit, i.e. also for charging and discharging a thermal store.
1.1 - Models
Four models of 560, 760, 925 and 1687 l total volume, with stainless-steel tube DHW heat exchanger.
1.2 - Tank protection
The thermal store has no inner surface nish, the outer surface is painted in gray. The DHW heat exchanger is
made of stainless steel.
1.3 - Thermal insulation
Thermal insulation is available as a separate item. For easier handling, the insulation shall not be tted on the tank
until it reaches its denite place of installation. The insulation is 100 mm thick, with PUR leather surface, and closes
with a zipper.
1.4 - Packaging
Thermal stores are delivered standing, each screwed to its pallet, packed in bubble wrap.
It is forbidden to transport and/or store the thermal stores in a horizontal position.
2 - General Information
This Owners 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. The appliance shall be installed by a qualified person
according to valid rules and Manufacturer‘s Instructions.
This appliance is designed to accumulate thermal energy and distribute it subsequently. It must be connected to a
heating system and heat sources. This appliance is suitable for continuous heating of domestic hot water.
Using the thermal store for other purposes than above described is forbidden and the manufacturer accepts no
responsibility for damage caused by improper or wrong use or filling procedure.
The appliance shall be installed by a qualified person according to valid rules, otherwise the warranty becomes null
and void.

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3 - Technical Data and Dimensions of HSK P Model Line
HSK 600/1 P HSK 750/1 P HSK 1000/1 P HSK 1700/1 P
Code - TANK 14 175 14 178 14 555 14 558
Code - INSULATION (accessory) 16 230 16 323 16 310 16 314
Thermal Store HSK 600/1 P with
insulation
HSK 750/1 Pwith
insulation
HSK 1000/1 P with
insulation
HSK 1700/1 P with
insulation
Standing loss 101 W 119 W 132 W 179 W
Celkový objem 560 l 760 l 925 l 1687 l
Fluid volume in tank 539 l 739 l 904 l 1666 l
DHW HE heat exchanger volume above
separating metal sheet
21 l 21 l 21 l 21 l
DHW HE surface area above separating
metal sheet
6 m² 6 m² 6 m² 6 m²
Max. working pressure in tank 95 °C 95 °C 95 °C 95 °C
Max. working temperature in DHW HE 95 °C 95 °C 95 °C 95 °C
Max. working pressure in tank 4 bar 4 bar 4 bar 3 bar
Max. working pressure in DHW HE 6 bar 6 bar 6 bar 6 bar
Immersion heater max. length/output 4x 555 mm / 6 kW 4x 700 mm / 8,2 kW 4x 755 mm / 9 kW 4x 955 mm / 12 kW
Tank material S235JR
DHW heat exchanger material AISI 316 L
Tank diameter 650 mm 750 mm 800 mm 1100 mm
Diameter with insulation 850 mm 950 mm 1000 mm 1300 mm
Total tank height 1935 mm 1975 mm 2080 mm 2075 mm
Tipping height without insulation 1970 mm 2030 mm 2120 mm 2190 mm
Empty weight 109 kg 120 kg 130 kg 215 kg
Electric heating element models ETT-C, ETT-L, ETT-M
HSK 600/1 P HSK 750/1 P HSK 1000/1 P HSK 1700/1 P
pos. conn. height [mm]
height
B1 G6/4"F 985 1010 1205 1240
B2 G6/4"F 235 255 300 335
B3 G6/4"F 1570 1590 1635 1615
B4 G6/4"F 1090 1115 1340 1370
B5 G1"F 1570 1590 1635 1615
B6 G6/4"F 660 635 787 370
heating system
H1 G1"F 1030 1055 1280 1300
H2 G1"F 235 255 300 335
electric heating elements
E1 G6/4"F 1150 1175 1365 1437
E2 G6/4"F 890 915 1110 1170
E3 G6/4"F 890 915 1110 1170
E4 G6/4"F 235 255 300 335
DHW heating
W1 G1"M 970 1135 1360 1390
W2 G1"M 970 1135 1360 1390
control and safety
C1 G1/2"F 1000 1025 1250 1275
C2 G1/2"F 315 335 370 700
C3 G1/2"F 1310 1335 1550 1505
C4 G1/2"F 1220 1245 1470 1475
TG1/2"F 1635 1655 1700 1675
MG1/2"F 510 510 510 555
PG1/2"F 400 400 400 445
air release
OG1/2"F 1935 1975 2080 2075
pump s tation mount
F1 M6 1660 1680 1725 1802
F2 M6 1500 1520 1565 1642
Tank diameter with insulation
Tank diameter
Total height

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4 - Operation
This tank is designed for heating and storing heating water in household or industrial applications, however always in
closed pressure circuits with forced circulation. Hot water is heated inside the thermal store from several possible heat
sources like various kinds of heating boilers, renewable energy sources or also electric heating elements. A stainless-
-steel tube DHW heat exchanger is heated by heating water inside the thermal store. It connects through 1” threaded
ttings. When hot water is drawn from the outlet point, cold water ows into the immersed heat exchanger and heats
up by the heating water.
The thermal store shall be connected to heat sources through connecting threaded ttings.
Individual connection points are assigned according to the circuits to be connected. There is a wide choice of combi-
nations; the following chapter describes just some examples.
5 - Typical Layout Examples with Thermal Store
Example I.
Heat pump + gas-red boiler + replace + PV possible
Example II.
Heat pump + el. heating element + replace + PV possible
electric heating element
for DHW
electric heating elements
for space heating
HW CW
HW CW
boiler (gas, electric,
light oil fired...)
PV el. heating elements can be inserted here
PV el. heating elements can be inserted here

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6 - Installation and Commissioning
Installation must meet valid rules and may be done only by qualified staff.
Defects caused by improper installation, use or handling are not covered by warranty.
After the tank is installed and connected to an existing heating system, it is recommended to clean the entire heating
system using a suitable cleaning agent, e.g. MR-501/R.
Anti-corrosion protective liquid should be also used, e.g. MR-501/F.
6.1 - Connection to heat sources
Place the tank on the floor, as close to your heat source as possible. Connect the heating circuits to inlets and outlets
respecting the thermal stratification in the tank. Install a drain valve at the lowest point of the tank.
Install an air vent valve at the highest point of the system. Insulate all the connection piping
6.2 - Installation of an el. heating element
The G 6/4“ side tappings are designed to accommodate electric heating rods. They can be connected either directly to
the mains (thermostat-equipped rods), or to a heating system controller. The installation may be done by qualified staff
only.
Warning: Electric heating elements shall be protected by a safety thermostat.
6.3 - Connection to water mains
DHW piping shall be done according to valid rules. Installation of a pressure reducing valve on the immersed tank inlet is
recommended. For water mains pressure above 6 bar a pressure reducing valve is necessary. Should the water be too
hard, install a water softener before the tank. In case the water contains mechanical impurities, install a strainer.
6.4 - Commissioning
The tank shall be filled up together with the heating system, respecting valid standards and rules. In order to minimize
corrosion, special additives for heating systems should be used. The quality of heating water depends on the quality of
filling water at commissioning, on the top-up water and on the frequency of topping up. This has a strong influence on the
lifetime of heating systems. Poor quality of heating water may cause problems like corrosion or incrustation, esp. on heat
transfer surfaces.
Quality of DHW shall meet the conditions shown in the Table of limit values for total dissolved solids in hot
water on this page.
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 the proper function of all control and adjustment elements.
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
7 - Installing Insulation on the Tank
Warning
Insulation installation shall be done in two or three persons, depending on its size. The zippered, PVC coated
insulation must not be 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.
Installing Insulation
1. Fix the tank following installation instructions.
2. Fit the bottom insulation parts.
3. Wrap the insulation around the tank carefully. Check that the insulation adheres to its body perfectly. This can be
reached by rubbing and patting the insulation by hand from its center evenly in both directions until the insulation
adheres to the tank’s surface completely and no bubbles are left.

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4. Use the holes for tappings as a rest during the insulation installation.
5. At least one person presses the insulation to the tank, pulling both ends together. The other person closes the
zipper.
6. Put on the upper insulation and cover
7. Push on the covering plastic rosettes depending on the size of tappings, or put on the flange plug(s) with insulation.
8. Finish the tank installation in compliance with the respective instructions and valid standards and rules.
Warranty on insulation
□ Warranty shall become null and void if:
○ the procedure described in the Installation Manual was not respected,
○ 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.

©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
v1.2-03/2019
8 - Maintenance
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.
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 Center.
Insulation shall be recycled as plastic and the steel vessel as scrap iron.
10 - Warranty
This product is covered by warranty under conditions specified in this Manual and the respective Warranty Certificate.
The Warranty Certificate is an integral part of supply of this Thermal Store.