Regulus PSWF 300 N+ User manual

www.regulus.eu
PSWF N+
PSWF N+
EN
Installation and Operation Manual
THERMAL STORES
PSWF 300 N+, PSWF 500 N+, PSWF 800 N+,
PSWF 1000 N+, PSWF 1500 N+ and PSWF 2000 N+

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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 Technical Data and Dimensions ................................................................................................................... 4
4 Operation ........................................................................................................................................................ 5
5 Typical Layout Example with Thermal Store ............................................................................................... 5
6 Installation and Commissioning ................................................................................................................... 6
6.1 Connection to heat sources ................................................................................................................ 6
6.2 Connection to a solar thermal system ................................................................................................. 6
6.3 El. heating element installation .......................................................................................................... 6
6.4 Commissioning ................................................................................................................................... 6
7 Installing Insulation on the Tank .................................................................................................................. 6
8 Maintenance ................................................................................................................................................... 8
9 Disposal .......................................................................................................................................................... 8
10 Warranty .......................................................................................................................................................... 8

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1 - Description
PSWF N+ Thermal Stores are intended for storing and subsequent distribution of thermal energy from solid-fuel red
boilers, heat pumps, solar collectors, electric boilers etc. This thermal store shall be always connected to a sealed
heating circuit with forced circulation. It is tted with one upper ange ready to receive a suitably sized tube heat ex-
changer. A heat exchanger with 1” connections is installed in the bottom part. Mating anges for heat exchangers with
either G 1” or G ¾” connections are available as an option. When no heat exchanger is installed, a blind ange shall
be used (option). These heat exchangers are made of nned copper tubes that feature larger surface area and better
heat transfer. The lower heat exchanger usually connects to a solar system and the upper one is used for DHW heat-
ing (continuous) which limits signicantly the risk of Legionella bacteria formation. The tanks are also tted with nine G
6/4“ side sleeves to connect heat sources, four G ½“ ones for sensor sheaths and one G ½“ connection for
a safety valve. El. heating elements can be installed directly into the 6/4” connections that are located outside the
lower heat exchanger.
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. When more heat sources
shall be combined, it is recommended to use a smart controller, e.g. Regulus IR, for both the source and load sides of
a heating circuit, i.e. also for charging and discharging the thermal store.
1.1 - Models
Six models of 280, 472, 807, 930, 1498 and 1996 l capacity.
1.2 - Tank protection
The inner surface has no nish, no anticorrosion protection, the outer surface is lacquered in gray.
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 made of eece, 100 mm thick, with a hard polystyrene
surface. It is closed by a quick lock.
1.4 - Connection points on the tank
1 ange with 210 mm inner diam.
8 side connections in a 90° sector, G 6/4” F thread
1 top connection, G 6/4” F thread
4 side connections for sensor sheaths, G ½” F thread
1 side connection for a 3 bar safety valve, G ½” F thread
2 side connections for a heat exchanger, G 1” F thread
1.5 - Packing
Tanks are delivered standing, each screwed to its pallet, packed in bubble wrap.
Included in the package are gaskets, bolts for the ange.
2 - General Information
This Owners 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, operation and
maintenance. Keep this Manual for later reference. The appliance shall be installed by a qualied person according to
valid rules and Manufacturer‘s Instructions.
This appliance is designed to accumulate thermal energy of heating water and distribute it subsequently. It shall be
connected to a heating system and heat sources. The equipment is suitable also for continuous water heating. In such
a case, the customer needs to buy a suitably sized heat exchanger (available as accessory) and have it installed into
the ange.
Using the thermal store for other purposes than above described (e.g. as a DHW tank) is forbidden and the
manufacturer accepts no responsibility for damage caused by improper or wrong use.

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3 - Technical Data and Dimensions
Tank code: .................................................................................... a
Insulation code: ............................................................................ b
Total uid volume in tank: ............................................................. c
Fluid volume in tank: .................................................................... d
Fluid volume in heat exchanger: .................................................. e
Surface area of heat exchanger: .................................................. f
Max. working temperature in tank: ............................................... 95 °C
Max. working temperature in heat exchanger: ............................. 110 °C
Max. working pressure in tank PSWF 300 N+ ÷ PSWF 1000 N+: 4 bar
Max. working pressure in tank PSWF 1500 N+ ÷ PSWF 2000 N+:3 bar
Max. working pressure in heat exchanger: .................................. 10 bar
Empty weight: ............................................................................... g
Tipping height without insulation: .................................................. V1
Type - model PSWF
300 N+
PSWF
500 N+
PSWF
800 N+
PSWF
1000 N+
PSWF
1500 N+
PSWF
2000 N+
Tank code a 14732 14735 15230 15232 15234 15236
Insulation code b 19342 19332 19343 19325 19350 19355
Total uid volume in tank [l] c280 472 807 930 1498 1996
Fluid volume in tank [l] d271 461 792 912 1476 1971
Fluid volume in heat exchanger [l] e9,0 11,0 15,0 18,0 22,0 25,0
Heat exchanger surface area [sqm] f1,5 2,0 2,7 3,2 4,0 4,5
Empty weight [kg] g87 118 160 180 265 311
Tipping height without insulation [mm] V1 1430 1950 1895 2120 1965 2050
Dimensions [mm] ø D1 750 800 1000 1000 1300 1450
ø D 550 600 800 800 1100 1250
B1 1120 1615 1455 1690 1475 1510
B2 220 225 315 300 335 370
H1 1405 1915 1845 2080 1885 1955
H2 220 225 315 300 335 370
C1 1135 1630 1470 1705 1490 1525
C2 520 585 685 740 735 760
C3 830 1270 1155 1345 1175 1210
T895 1400 1250 1475 1270 1305
P375 450 530 525 550 585
U1 1120 1615 1455 1690 1475 1510
U2 360 435 515 510 535 570
U3 795 1155 1075 1230 1095 1130
U4 520 685 695 760 715 750
U5 880 1385 1235 1460 1255 1290
X1 670 765 870 950 940 955
X2 220 225 315 300 335 370
L1 1010 1515 1355 1590 1375 1410
Dimensions
TAPPINGS
pos. connection
Heat sources
B1 G 6/4" F
B2 G 6/4" F
Heating system
H1 G 6/4" F
H2 G 6/4" F
Control and safety
C1 G 1/2" F
C2 G 1/2" F
C3 G 1/2" F
TG 1/2" F
PG 1/2" F
Universal inlet / outlet
U1 G 6/4" F
U2 G 6/4" F
U3 G 6/4" F
U4 G 6/4" F
U5 G 6/4" F
Solar thermal systems
X1 G 1" F
X2 G 1" F
Flanges
L1 12 x M12
ØD1
ØD
H1

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4 - Operation
This thermal store is designed to accumulate thermal energy in domestic or industrial applications, however always
in sealed pressure circuits with forced circulation. In the thermal store, heating water is heated up from several heat
sources like various types of hot-water boilers, renewable energy sources (heat pumps, solar collectors), or electric
heating elements.
The thermal store is connected to the energy source using a G 6/4“ connection tting. A solar system thermal con-
nects to the outlets of the inbuilt heat exchanger through G 1” ttings.
The individual tank outlets are tted according to the circuits to be connected.
5 - Typical Layout Example with Thermal Store
Example
Solar collectors, el. heating
elements and biomass-red
boiler.
KEY 1 – hot water storage tank 2 – el. heating element for DHW w. thermostat 3 – CSE SOL solar pump station 4 – three-way zone valve 5 – solar expansion vessel 6 – electric heating elements for heating system 7 – nned tube heat exchanger x.xx m2 in ange 8 – thermal store for central heating - PSWF xxx N+ 9 – heating system expansion vessel 10 – boiler load unit - RGMAT 11 – biomass boiler (replace insert/stove) 12 – pump station for heating system - CSE2 MIX 13 – pump station for DHW heating – CSE OTS ZV 14 – solar collectors 15 – pump station for DHW recirculation – CSE TVMIX ZV 16 – safety kit for HW storage tank 17 – DHW expansion vessel SV – cold water TV – hot water CV – hot water recirculation ÚT – central heating (heating system) KK – ball valve ZV – check valve AOV – automatic air vent valve PTR – pressure temperature relief valve REDV – pressure reducing valve (optional) VK – drain valve SVE – expansion vessel service valve PV-ÚT – safety valve for heating system MFB – Magnet Filterball F – lter BVTS – safety relief valve of boiler cooling loop
THERMOSTAT THERMOMETER

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6 - Installation and Commissioning
Installation shall meet valid rules and may be done by qualied staff only.
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. BP 400.
Anti-corrosion protective liquid should be also used, e.g. BP 100 Plus.
6.1 - Connection to heat sources
Place the tank on the oor, as close to your heat source as possible. Mount the insulation, cf. Installing Insulation on the
Tank.Connect the heating system according to the recommended connection layout - see Chap. 5. 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 connecting piping.
6.2 - Connection to a solar system
This tank is suitable for use with a solar system. In such a case the inlet of heated solar uid from collectors connects to
the G 1” upper connection of the heat exchanger and the return line from the solar thermal system connects to its lower
connection. Insulate meticulously all the piping between the tank and the solar thermal system.
6.3 - El. heating element installation
The tank may be tted with electric heating elements up to 12kW output depending on the volume of the thermal store
- see the table of max. output of heating elements in hot water tanks and thermal stores in the Catalogue. They can be
power-supplied either directly (elements with built-in thermostat) or via a controller for the entire heating system.
All electric heating elements shall be protected by a safety thermostat.
Electric heating elements shall be installed by an authorized person only.
6.4 - Commissioning
Ground the tank before commissioning.
The tank shall be lled 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
lling water at commissioning, on the top-up water and on the frequency of topping up. This has a strong inuence on the
lifetime of heating systems. Poor quality of heating water may cause problems like corrosion or incrustation, esp. on heat
transfer surfaces.
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
Fill the heating circuits with the appropriate uids 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 recom-
mendations. Check regularly proper function of all control and adjustment elements.
7 - Installing Insulation on the Tank
Product description
Fleece insulation with a hard polystyrene surface, closed by a quick lock.
Warning
Insulation installation shall be done in two or three persons, depending on its size. The eece 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.
Do not use any tools for installation.
Keep away from open re.

7 │
Installing Insulation
1. Put the bottom insulation under the tank and place the tank following installation instructions.
2. 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.
3. Use the holes for sleeves as a rest during the insulation installation.
4. At least one person presses the insulation to the tank, pulling both ends together. The other person closes the quick
lock from the side.
5. Put on the upper insulation and cover.
6. Push on the covering plastic rosettes depending on the size of sleeves, or put on the ange plug(s) with insulation.
7. Finish the tank installation in compliance with the respective instructions and valid standards and rules.
Warranty on insulation
The insulation is covered by a 24-month warranty. This period starts the next day after the insulation is sold.
□ 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 re, water, electricity or a natural disaster,
○ defects caused by failure to use the product in compliance with its intended purpose, by improper use and
insufcient maintenance,
○ defects caused by mechanical damage to the product,
○ defects caused by tampering or incompetent repair.

©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
v1.2-12/2022
8 - Maintenance
If the tank is tted with a heating element, disconnect it from the mains rst. 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 the conditions listed in this Manual and in compliance with the Warranty
Certicate. A Warranty Certicate is an integral part of this accumulation tank scope of supply.