Regulus LYRA 1000 VVS User manual

www.regulus.eu
LYRA 1000 VVS
LYRA 1000 VVS
EN
Installation and Operation Manual
LYRA 1000 VVS THERMAL STORE

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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 .................................................................................................................. 4
4 Operation ........................................................................................................................................................ 4
5 Connections ................................................................................................................................................... 5
5.1 Mounting pump stations and accessories onto LYRA ........................................................................ 5
5.2 Connecting heating circuits ................................................................................................................ 17
5.3 Connecting DHW circuit ..................................................................................................................... 17
5.4 Connecting solar circuit ..................................................................................................................... 17
5.5 Examples of heat sources connection ............................................................................................... 18
5.6 Installation of electric heating elements ............................................................................................. 19
6 Thermal Store Installation ............................................................................................................................. 20
7 Maintenance ................................................................................................................................................... 20
8 Disposal .......................................................................................................................................................... 20
9 Warranty ......................................................................................................................................................... 20

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1 - Description
Regulus LYRA Thermal Stores are intended for accumulation and subsequent distribution of thermal energy from
solid-fuel fired boilers, heat pumps, solar collectors, electric boilers etc. The Thermal Store shall be always connected
to a sealed heating circuit. The tank comes with complete accessories for connection to heating circuits, solar system
and hot water.
The accessories supplied represent a complete solution for connecting a heating system, connecting cold water inlet
for DHW heating and subsequent DHW output. In the recirculation variant this also enables connection of a circulation
pipe. The hot water circulation pump is already integrated in a fresh water station. Heat sources shall be connected to
the free inlets at the tank rear, following the diagrams included in this Manual (Chapter 5.5). When more heat sources
are combined, some intelligent controller should be used to control the heat sources and sinks, incl. the Thermal Store
charging and discharging, for example Regulus IR12 Intelligent Controller.
1.1 - Models
There are 4 models of Regulus LYRA:
- for one heating circuit, no hot water recirculation (code 12231),
- for one heating circuit, with hot water recirculation (code 12229),
- for two heating circuits, no hot water recirculation (code 12230),
- for two heating circuits, with hot water recirculation (code 12228).
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 included in the scope of delivery. The insulation consists of 3 layers; the first layer is made of
soft insulation tightly fitting to the tank. The second, main insulation layer, features a coefficient of thermal conductivity
l=0,032 W/m.K. The third layer is represented by a tough, glossy, washable surface. The total insulation thickness is
100 mm.
1.4 - Packaging
Tanks are delivered standing, each screwed to its pallet, packed in bubble wrap. Included in the package are all com-
ponents to be fitted on the tank. Insulation is in a separate package.
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 qualified person according to
valid rules and Manufacturer‘s Instructions.
This appliance is designed to accumulate heating water and distribute it subsequently. It shall be connected to a heat-
ing system and heat sources. It is intended also for DHW heating, but exclusively through the enclosed fresh water
station with a plate heat exchanger.
Using the accumulation tank for other purposes than above described (e.g. as a domestic hot water tank) is
forbidden and the manufacturer accepts no responsibility for damage caused by improper or wrong use.
The output of heat sources not equipped with their own safety valve and connected to the tank fitted with the
enclosed safety valve shall never exceed 110 kW.

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3 - Technical Data and Dimensions
4 - Operation
This Thermal Store is designed to heat water and accumulate heat for space heating in domestic or industrial
applications, however always in sealed pressure circuits with forced circulation. In the heat 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.
code:
Total fluid volume: ...............................................................................................
Fluid volume in tank: ...........................................................................................
Fluid volume in heat exchanger: .........................................................................
Heat exchanger surface area: .............................................................................
Max. working temp. in tank: ................................................................................
Max. working temp. in heat exchanger: ..............................................................
Max. working pressure in tank: ...........................................................................
Max. working pressure in heat exchanger: .........................................................
Hot water recovery rate from 10°C to 50°C with heating water temperature 63°C: ...
Empty weight: .....................................................................................................
Tipping height without insulation: ........................................................................

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5.1 Mounting pump stations and accessories onto LYRA
SCOPE OF DELIVERY
LYRA Thermal Store, code 12228 (others under codes 12229, 12230, 12231
differ just in number of heating circuits or the possibility to connect the
fresh water station to a recirculation pipe):
12228: LYRA 1000 VVS Thermal Store with 2 heating circuits and DHW recirc.
Code Name Qty
11999 PSW 1000 FWS Thermal Store for LYRA 1 pcs
11998 Insulation for PSW 1000 FWS Thermal Store, NEODUL - code 11999 1 pcs
12224 Pump station for Thermal Store, 2 circuits 1pcs
9909 S2 Solar 3 pump station, ST25/6, 2-12 l/min, 3/4" 1 pcs
9717 Fresh water station with FWC3 controller, with recirculation 1 pcs
12226 Kit to connect assemblies onto LYRA 1pcs
12227 Kit to connect solar pump station onto LYRA 1 pcs
12687 TSC3 Assy for LYRA 1 pcs
13983 T-Piece Assy for LYRA 1 pcs
12689 Pressure gauge assy for LYRA 1 pcs
12690 Angled Ball Valve Assy for LYRA 1 pcs
13236 Ball valve and elbow assy for LYRA and VEGA tanks 1 pcs
13234 Kit for connecting TSV assy to LYRA tank 1 pcs
13237 Accessory kit for LYRA and VEGA tanks 1 pcs
12222 Cover for pump station with 2 circuits 1 pcs
12223 Front insulation for cover for pump station with 2 circuits 1pcs
12720 Top insulation for cover for pump station with 2 circuits 1 pcs
12713 Black knurled screw, M6x1-10 PA 6.6 4 pcs
13437 Kit for connecting expansion vessel to LYRA 1 pcs
12226: Assy Connection Kit for LYRA
Code Name Qty
11271 DN25 water pipe, 1"MF,250-500 1 pcs
13984 DN25 pipe (5/4” nut) l=580 mm 1 pcs
3016 DN25 water pipe, 1"MF,200-400 1 pcs
3041 DN20 water pipe,3/4"MF,250-500 2 pcs
7691 Brass hex plug, 1” M 1 pcs
8306 3/4” elbow, M/F, brass 1 pcs
6447 Pipe insulation, diam. 28, 13 mm thick (2 m) 1.2 m
7187 Pipe insulation, diam. 35, 13 mm thick (2 m) 1.5 m
12996 M6x16 stainless steel bolt (hex socket) DIN 912/A2 8 pcs
7853 6.5 washer (large diameter 3d) 8pcs
9980 1” nut gasket - 18,5x30x2 PTFE 3 pcs
9978 3/4" nut gasket - 15x24x2 PTFE 3 pcs
13237 : Accessory Kit for LYRA and VEGA
Code Name Qty
10474 Thermometer d=63 with sheath l=150, 1/2“, rear conn., 0-120°C 2 pcs
605 Safety valve 3 bar,1/2" F/F 1 pcs
6971 1/2" hex nipple (M/M), thick wall 2 pcs
11965 1/2" ball valve, F/F 1 pcs
11708 Automatic ½“ air release valve, with check valve 1 pcs
13437 : Expansion Vessel Connection Kit for Lyra/Vega
Code Name Qty
11969 6/4" FF ball valve 1pcs
7627 Hex nipple, 6/4“ x 6/4“, M/M, thick wall 2 pcs
8757 T-piece in brass 6/4" FFF 1 pcs
8766 Reducing hex nipple 1"x6/4" M/M 1 pcs
7049 T-piece in brass 1" FFF 1 pcs
6969 Hex nipple, 1“x1“, M/M, thick wall 1 pcs
7701 Reducing hex nipple, 1“x1/2“, M/M, brass 1 pcs
11713 1/2“ drain valve, no handle, with cap 1 pcs
5 - Connections
14866

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12227 : Solar Pump Station Connection Kit for LYRA/VEGA390
Code Name Qty
3012 DN20 hose for water, 100-200 mm long, 3/4“ FM 2 pcs
154 Sensor Sheath, 7x8x100 mm, 1/2“, for 1 sensor 1 pcs
7223 Reducing Hex Nipple, 1“x3/4“, M/F, brass 2 pcs
6447 Insulation DNa 28,13 mm thick, 2 m 0,5 m
10845 Capillary spring, small, 1/2“, stainless steel 1m
9980 1“ PTFE Nut Gasket - 18.5x30x2 mm 2 pcs
12996 M 6x16 Stainless Steel Bolt (Allen head), DIN 912/A2 2 pcs
7853 Washer 6.5 (large diam. 3d) 2 pcs
13234 : Kit for TSV Assy Connection to LYRA
Code Name Qty
11946 DN20 hose for water, 65-125 mm long, 3/4“ FM 1 pcs
998 Ball Valve 3/4“ M/F, red butterfly handle 1 pcs
6970 3/4“ M/M brass hex nipple, thick wall 1 pcs

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MOUNTING INSTRUCTIONS
WARNING! At least 20 °C and 4 persons are necessary to mount the insulation. All
threaded connections shall be sealed either with a thread sealant or with the gaskets
included in separate kits.
1. Remove the tank from its pallet and place it to its approximate position, shift the
bottom insulation under the tank.
2. Slide the insulation inserts into the openings for connections.
3. Fit on the front insulation part, then the rear insulation part.
Check the proper position of the insulation towards the
sockets prior to final fixing. Use the jig to close the locks.

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4. Peel off the protective foil from the insulation, apply the self-adhesive annuluses
around the openings for connections. Some annuluses are cut out, these shall be
used in places where openings are close to each other (the annuluses overlap).
5. Fit the assembly with elbow ball valve (code 12690). From this point
on, it is important to stick to the sequence of installation steps
described below!
6. Fit the assembly with ball valve and pressure gauge (code 12689).
7. Do hrdla 1“ pod skupinu s manometrem namontovat zátku (kód 7691).

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8. Fit the 3/4” ball valve (code 998) to the tank and the 3/4” FF hex nipple (code 6970) into
the valve, both these components are included in the Kit code 13234. Turn the ball valve
into the position shown in the fig.
9. Fit the ball valve and elbow assembly (code 13236) into the lower 1“ opening.
10. Align the metal sheet against the four pins and fix it using 4 screws M6x16 with washers
(codes 12996 and 7853) - both these components are included in the Kit code 12226.
Do not forget to place insulation washers under the metal sheet and loosen the clamps.
Fit the pump station with 4-way mixing valves (code 12224 or 12225). Using a 5/4” union
nut, connect it with the angled valve assembly mounted earlier (see point 5). Tighten the
clamps.

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11. Fit the fresh water station (code either 9717 or 9913) using 4 screws M6x16
with washers (codes 12996 and 7853) - all these components are included in the Kit
code 12226.
12. Connect the TSV3B assembly (code 12687) using a 3/4“ pipe, 100 mm long (code
11946) - included in Kit 13234 with 3/4“ ball valve - see point 8.
13. Connect the TSV3B assembly with the DHW assembly..

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14. Fit the solar pump station (code 14866) using 2 screws M6x16 and washers (codes
12996 and 7853) - all these components are included in the Kit code 12227.
15. Connect the solar pump station to the tank using the respective Kit (code 12227). Prior
to fitting, cut the insulation to length and slide it onto the pipe. Fit the solar sheath.
SHEATH
16. Stretch the pipes to the below listed preliminary lengths, cut the insulation and slide
it onto the pipes (included in the Kit code 12226):
−one 1” pipe (code 11271) to 410 mm, insulation to some 500 mm
−one 1” pipe (code 3016) to 250 mm, insulation to some 300 mm
−one 3/4” pipe (code 3041) to 450 mm, insulation to some 550mm
−one 3/4” pipe (code 3041) to 320 mm, insulation to some 400 mm
−one 5/4” DN25 pipe (code 13484) to 580 mm, insulation to some 700 mm

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17. Using the 1” pipe 250 mm long (code 3016), connect the pressure gauge assy
with the inner 1” elbow of the pump station with 4-way valves.
18. Fit the 1” pipe 410 mm long (code 11271), connect the zone valve assy with
onto the pump station.
19. Fit the 3/4“ pipes 320 and 450 mm long (code 3041) to the T-piece assy (code 13983).
The 450 mm long pipe shall be fitted at the right-hand side, see fig.

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20.Connect the T-piece assy at 3 points, see fig.
21. Using the 5/4” pipe 580 mm long, connect the T-piece assy with the ball valve assy.
22. Fit two thermometers (code 10474), included in Kit 13237, and 6/4” and 1/2” plugs or
electric heating elements and a safety thermostat.
THERMOMETERS PLUGS 6/4“
or HEATING
ELEMENT
PLUGS 1/2“
or SAFETY
THERMOSTAT

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23. Fit the hex nipple 6971 into the sleeve and then the safety valve (code 605) –
included in Kit 13237.
24. Push the front insulation onto the pump station with 4-way valves.
25. Connect the terminals of the pumps with cables, push the cables behind the insulation.

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26. Fit the plastic cover onto the pump station with 4-way valves and fix it with 4 plastic
screws M6x10 (code 12713).
27. Fit the top insulation and the top plastic cover onto the tank.
28. Fit the automatic air release valve (code 11708) with ball valve (code 11965) and
hex nipple (code 6971), all included in Kit 13237.

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Completely fitted tank:
ed
tank:

17 │
5.2 Connecting heating circuits
5.3 Connecting DHW circuit
5.4 Connecting solar circuit
143
2
13
2
12
1. Return line from Heating Circuit 1 – G1”F
2. Flow to Heating Circuit 1 – G1”F
3. Flow to Heating Circuit 2 – G1”F
4. Return line from Heating Circuit 2 – G1”F
As a variant, LYRA can be supplied with a pump
station for one heating circuit only.
1. Hot water outlet – G3/4” M
2. Hot water recirculation – G3/4” M
3. Cold water inlet – G3/4” M
As a variant, LYRA can be supplied with a fresh
water station without recirculation pump and
recirculation line connection.
As a variant, a kit with a zone valve can be
supplied to ensure controlled thermal layering.
1. Inlet from solar collectors – G3/4” M
2. Return line to solar collectors – G3/4” M

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EXAMPLE II.
Hydronic fireplace insert with heat exchanger, heat pump with flow temperature up to 55 °C, electric heating
elements.
5.5 Examples of heat sources connection
Inlets and outlets for connecting various heat sources are located across from pump stations for heating and DHW.
Openings for electric heating elements are situated left from the pump station for heating.
EXAMPLE I:
Hydronic fireplace insert with heat exchanger and hydronic boiler (electric, gas, oil or wood pellet fired)
safety temp. limiter
el. heating elements
heat pump
max. flow temp. 55 °C
hydronic fireplace insert
with heat exchanger
hydronic fireplace insert
with heat exchanger
boiler
electricity
gas
fuel oil
wood pellets
Kit for expansion vessel connection (code 13437).
During operation, the 6/4” valve shall be secured in an open position.
Kit for expansion vessel connection (code 13437).
During operation, the 6/4” valve shall be secured in an open position.

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EXAMPLE III.
Heat pump with flow temperature over 60 °C, electric heating elements
5.6. Installation of electric heating elements
The Thermal Store can be fitted with up to 2 electric heating elements of max. 12 kW total power output. These
elements shall be installed into the G6/4” sleeves in the upper tank section, left from the pump station for heating
circuits. The G1/2” port above the el. heating element ports is intended for a safety temperature limiter.
All el. heating elements shall be installed together with a safety temperature limiter.
Electric heating elements shall be wired by authorized staff only.
safety temp. limiter
el. heating elements
heat pump
max. flow temp. 65 °C
Kit for expansion vessel connection (code 13437).
During operation, the 6/4” valve shall be secured in an open position.

6 - 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. MR-501/R.
Anti-corrosion protective liquid should be also used, e.g. MR-501/F.
6.1 - 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.
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.
7 - 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.
8 - 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.
9 - 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 accumulation tank scope of supply.
©2017 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
v1.6-12/2017