Regulus PS2F 3000 N25 Thermal Stores Instruction Manual

PS2F 3000 N25 Thermal Stores
Instruction Manualwww.regulus.eu
Installation and Operation Manual
THERMAL STORES
PS2F 3000 N25, PS2F 4000 N25, PS2F 5000 N25
PS2F N25

Description

PS2F N25 Thermal Stores are intended for storing and subsequent distribution of thermal energy from solid-fuel fired boilers, heat pumps, solar collectors, electric boilers etc. This thermal store shall be always connected to a sealed heating circuit with forced circulation. Thermal stores are fitted with two flanges; each can be fitted with a suitably sized tube heat exchanger depending on the selected application and required output. Mating flanges for heat exchangers with either G 1” or G ¾” connections are supplied with PS2F N25 thermal stores. When no heat exchanger is installed, a blind flange shall be used.
These heat exchangers are made of finned copper tubes that feature larger surface area and better heat transfer.
The lower heat exchanger usually connects to a solar thermal system and the upper one is used for DHW heating (continuous) which limits significantly the risk of Legionella bacteria formation. The tanks are also fitted with nine G 2,5“ connections to connect heat sources and heating system, four G ½“ ones for sensor sheaths and one G ½“ connection for a safety valve. El. heating elements can be installed into the 2,5” connections using a reducing piece.
1.1 – Models
Three models of 3027, 3996 and 4994 l capacity.
1.2 – Tank protection
The inner surface has no finish, 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 fitted on the tank until it reaches its definite place of installation. The insulation is made of fleece, 100 mm thick, with a hard polystyrene surface.
It is closed by a quick lock.
1.4 – Connection points on the tank
2 flanges with 210 mm inner diam.
8 side connections in a 90° sector, G 2,5” F thread
1 top connection, G 2,5” 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
1.5 – Packaging
Tanks are delivered standing, each screwed to its pallet, packed in bubble wrap.
Included in the package are gaskets and bolts for the flange.

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 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 upper flange.
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.

Technical Data and Dimensions

Dimensions  

CONNECTIONS

pos.| connection
Heat sources
B1| G 2,5″ F
B2| G 2,5″ F
Heating system
H1| G 2,5″ F
H2| G 2,5″ F
Control and safety
C1| G 1/2″ F
C2| G 1/2″ F
C3| G 1/2″ F
T| G 1/2″ F
P| G 1/2″ F
Universal inlet / outlet
U1| G 2,5″ F
U2| G 2,5″ F
U3| G 2,5″ F
U4| G 2,5″ F
U5| G 2,5″ F
Flanges
L1| 12 x M12
L2| 12 x M12

Tank code: …………………………………………………………………………… a
Insulation code: ……………………………………………………………………. b
Total fluid volume in tank: ………………………………………………………. c
Max. working temperature in tank: ………………………………………….. 95 °C
Max. working pressure in tank PS2F 3000 N25 ÷ PS2F 5000 N25: 3 bar
Empty weight: ……………………………………………………………………… d
Tipping height without insulation: ……………………………………………. V1

Operation

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 shall be connected to a heat source through G 2,5” connecting fittings. Should it be connected to a solar thermal system, too, this shall be done through a suitably sized heat exchanger installed into the lower flange.

Typical Layout Example with Thermal Store

Example
Solar collectors, el. heating elements and biomass-fired 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 – finned tube heat exchanger x.xx m2 in flange for DHW
8 – finned tube heat exchanger x.xx m2 in flange for solar
9 – thermal store for central heating – PS2F xxx N+ (N25)
10 – heating system expansion vessel
11 – boiler load unit – RGMAT
12 – biomass boiler (fireplace insert/stove)
13 – pump station for heating system – CSE2 MIX
14 – pump station for DHW heating – CSE OTS ZV
15 – solar collectors
16 – pump station for DHW recirculation – CSE TVMIX ZV
17 – safety kit for HW storage tank
18 – 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 – filter
BVTS – safety relief valve of boiler cooling loop

Installation and Commissioning

Installation shall meet valid rules and may be done by qualified 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 floor, 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 thermal system
This tank is suitable for use with a solar thermal system. In such a case a suitably sized heat exchanger shall be installed into the lower flange. Insulate meticulously all the piping between the tank and the solar thermal system.
6.3 – El. heating element installation
The tank may be fitted 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 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.
Table of limit values for total dissolved solids in hot water

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 proper function of all control and adjustment elements.

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 fleece 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 fire.
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 flange 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 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

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.

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.

Warranty

This product is covered by warranty under the conditions listed in this Manual and in compliance with the Warranty Certificate. A Warranty Certificate is an integral part of this thermal store scope of supply.

©2022 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
v1.3-12/2022

References

• Regulus - Energy saving solutions

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