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3

Manual - Solar hot water systems

1  

Notes on the documentation

Your solar system is a quality product from Vaillant. 
This manual describes the entire system, all of its 
components and the cylinder and provides you with 
information on start-up, maintenance and trouble-
shooting. It is a supplement to the operating, installation 
and assembly manuals of the individual components.

Observe the manuals for each

 

individual system 

component in conjunction with this manual.

Look after this manual and pass it on to the next owner.

h

 Note!

The “Start-up” and “Maintenance and 
troubleshooting” chapters of this manual are 
intended only for approved specialists.

Vaillant accepts no liability for any damage caused by
failure to observe this manual.

Other applicable documents

-  Assembly manual of the collectors
-  Operating and installation manual of the controller
-  Operating and installation manual of the boiler (if 

used)

-  Assembly, operating and installation manuals of all 

accessories used

- Warranty card

Symbols used

Please observe the safety instructions in this manual 
when operating and installing the solar system and the 
auroSTOR solar cylinder.
The symbols used in the manual are explained
below:

d

 Danger!

Immediate risk of serious injury or death!

e

 Danger!

Danger of death from electric shock!

e

 Danger!

Risk of burns or scalding!

a

 Caution!

Potentially dangerous situation for the product
and environment.

h

 Note!

Application recommendation.

•  Symbol for a required task

Overview of standards, 
safety instructions

2.1 

Overview of EU standards

Solar system in general

EN ISO 9488

Thermal solar system and components, terminology
(ISO/DIS 9488; 1995)

EN 12975-1

Thermal solar systems and components; Collectors, Part 
1: General requirements

EN 12975-2

Thermal solar systems and components; Collectors; Part 
2: Test methods

ENV 1991-2-3

Eurocode 1 – Basis of design and actions on structures, 
Part 2–3: Actions on structures - Snow loads

EN 12976-1

Thermal solar systems and components;
Factory made systems - Part 1: General requirements

EN 12976-2

Thermal solar systems and components;
Factory made systems - Part 2: Testing methods

ENV 12977-1

Thermal solar systems and components;
Custom built systems,
Part 1: General requirements

ENV 12977-2

Thermal solar systems and components; 
Factory made systems, 
Part 2: Testing methods

ISO 9459-1: 1993

Solar heating – Domestic water heating systems – Part 1:
Performance rating procedure using indoor test 
methods

ISO/TR 10217

Solar energy – Water heating systems – Guide to 
material selection with regard to internal corrosion

Collectors and collector assembly

ENV 1991-2-4

Eurocode 1 – Basis of design and actions on structures -
Part 2–4: Actions on structures - Wind actions

Notes on the documentation 1

Overview of standards, safety instructions 2

Summary of Contents for Solar hot water systems

Page 1: ...For the installer owner Start up maintenance and troubleshooting manual notes for the operator Solar System and auroSTOR unvented solar cylinder Solar hot water systems GB...

Page 2: ...o the solar pump unit 31 5 3 5 Bleeding of the solar circuit 32 5 4 Installation of the reheating circuit piping 32 5 5 Installation of the hot water pipework 32 5 5 1 Hot water thermostatic mixing va...

Page 3: ...tric shock e Danger Risk of burns or scalding a Caution Potentially dangerous situation for the product and environment h Note Application recommendation Symbol for a required task 2 Overview of stand...

Page 4: ...nstructions The entire solar system must always be installed and operated in accordance with recognised technical standards d Danger Risk of falling Make sure you adhere to the valid work protection r...

Page 5: ...the maintenance and inspection conditions a Caution We accept no liability for any damage or injuries caused by failure to observe this manual At the end of this manual is a start up protocol which sh...

Page 6: ...alve supplied together with the solar cylinder 4 Immersion heater 5 230 V motorised 2 port valve supplied together with the boiler 6 auroTHERM collector 7 Solar pump unit 8 Protection vessel optional...

Page 7: ...ter VR 65 can be used to wire up the system if an eBUS capable Vaillant boiler is used A standard wiring box can be used if a Vaillant boiler which is not eBUS capable or an external boiler is used Co...

Page 8: ...collector tubes with internal mirror of pure silver and glass glass connection of sleeve and absorber pipe for lasting vacuum sealing the collector ensures constant high performance over its entire s...

Page 9: ...prEN 12975 2 c 1 m s in the glass tube C 250 250 Shutdown temperature according to prEN 12975 2 c 1 m s at the collector connection C 180 180 Efficiency 0 according to EN 12975 78 3 78 3 Efficiency c...

Page 10: ...area gross aperture net m2 2 24 2 02 Height mm 1930 Width mm 1160 Depth mm 110 Weight kg 43 Absorber capacity l 1 1 Copper pipe connection flat face mm G 1 2 Insulation thickness mm 60 Max operating...

Page 11: ...ontrol pack consisting of an expansion relief valve 1 and a pressure gauge 2 for visual inspections 4 2 3 Solar expansion vessel The solar expansion vessel 4 is used to equalise the pressure while the...

Page 12: ...essential component of the solar system To achieve optimum heat transfer you must achieve a certain flow rate which is referred to as the nominal flow rate refer to Section 6 2 Setting the flow rate...

Page 13: ...eat exchanger reheating circuit 3 7 VIH S GB 250 S heat exchanger reheating circuit 3 7 VIH S GB 300 S heat exchanger reheating circuit 3 7 Solar pump unit 0 9 auroTHERM exclusive VTK 550 3 56 auroTHE...

Page 14: ...r must be disposed of according to local official regulations 6 Measures to be taken if substances are released accidentally 6 1 Individual related measures No particular measures required 6 2 Environ...

Page 15: ...components 12 3 Persistence and biodegradability information on elimination OECD 301 A test method new version Analysis method DOC acceptance Degree of elimination 70 28 d Assessment easily biodegrad...

Page 16: ...ferences not absolute temperature values are important for the operation of solar systems That is why solar systems are controlled by what is referred to as temperature difference controllers Temperat...

Page 17: ...dditional functions including central heating override and the time control function of an additional circulation pump For wiring refer to Section 5 8 Electrical installation and the operating and ins...

Page 18: ...ng bar long for 2 x VTK 550 1 1 2 2 Mounting bar normal for 1 x VTK 550 1 1 Mounting bar short for 1 x VTK 275 1 Roof bracket set for 2 x VTK 550 1 1 2 2 Roof bracket set for 1 x VTK 550 or 1 x VTK 27...

Page 19: ...1 1 Solar pump unit 1 1 1 1 Expansion vessel 25 l 1 1 Expansion vessel 35 l 1 1 Protection vessel for expansion vessel 1 1 1 1 Automatic air separator 1 1 1 1 Thermostat mixer 1 1 1 1 Solar control au...

Page 20: ...te tiles qty 6 1 On roof kit for two panels 1 Stainless steel connection pipe DN12 2x1m 1 Single insulated tube DN16 length 15m 2 Fittings pack for DN16 tube 1 Solar pump unit 1 Expansion vessel 18 li...

Page 21: ...collector solar set Item no 0020036552 Thermostatic mixing valve 1 Solar control auroMATIC 560 1 NTC sensor VR10 solar gain 1 Solar fluid 20 litre 2 Table 5 2 Scope of delivery of the auroTHERM flat...

Page 22: ...dish 1 1 1 Motorised 2 port valve A B 1 1 1 DHW expansion vessel 18 l 1 DHW expansion vessel 25 l 1 1 Mounting bracket for expansion vessel 1 1 1 Carrier handle 1 1 1 Compression fittings 1 1 1 Drain...

Page 23: ...ansion relief valve one port valve 6 0 bar 10 Tundish 11 Cylinder drain valve 12 Sp 2 temperature sensor immersion sleeve 13 Adjustable feet 14 Return solar circuit 15 Flow solar circuit 16 Return boi...

Page 24: ...t out TCO refer to Section 5 8 Electrical installation It ensures the solar pump is switched off if the hot water temperature in the cylinder rises above 90 C Fig 5 2 Attachment of the solar pump TCO...

Page 25: ...ection 22 mm pressure pipe Pressure controlled cold water outlet 22 mm pressure pipe Secondary return Inches G 3 4 Flow boiler solar circuit 22 mm pressure pipe Return boiler solar circuit 22 mm press...

Page 26: ...system Flow out litres min of the system 10 10 0 Fig 5 5 auroSTOR hot water flow rates at 60 C Static operating pressure of the cold water supply The displayed flow rates apply to installations in whi...

Page 27: ...isolate the primary heat source in the event of failure of the domestic water thermostat 5 1 6 Safety instructions and regulations This product has been checked for adherence to the building regulatio...

Page 28: ...ransport A cylinder carrier handle is supplied to make the transport to the installation site easier 1 Fig 5 7 Fastening the cylinder carrier handle Fasten the carrier handle 1 to the hot water connec...

Page 29: ...re and pressure relief valve 3 Immersion heater 4 Solar circuit flow Cylinder type A B C d A F g h R VIH S GB 200 S 1468 1499 454 384 314 589 1118 813 953 VIH S GB 250 S 1758 1789 454 384 314 589 1408...

Page 30: ...orised 2 port valve supplied with the solar cylinder 4 Immersion heater 5 230 V motorised 2 port valve supplied with the boiler 6 auroTHERM collector 7 Solar pump unit 8 Protection vessel optional 9 S...

Page 31: ...tion Risk of damage to the collectors due to excessive pressure The installation of a motorised 2 port valve in the pipes of the solar system is not allowed since the safety devices in the solar circu...

Page 32: ...MAX pro with open ventilation have an installed circulating pump it is not necessary to install them An appropriate pump must be installed in the reheating circuit if the solar cylinder is used with a...

Page 33: ...water of 10 C if the measured static cold mains water pressure is 2 bar and the available flow rate 30 l min The solar cylinder operates satisfactorily at a mains water pressure of below 2 bar but at...

Page 34: ...reas with high water pressure 4 bar or more a bath or shower mixer valve can also be connected to the pressure controlled cold water connection 4 Fig 5 16 of the water control pack to ensure the press...

Page 35: ...no risk of anyone coming in contact with hot water A suitable point is for example under a fixed grating above the trap of a trapped gully Low discharge pipes for example up to 100 mm above external...

Page 36: ...e solar cylinder for potential equalisation 5 8 1 Immersion heater The auroSTOR VIH S GB 200 300 S solar cylinders have been equipped with an immersion heater by the manufacturer 1 2 4 5 3 230 V AC 3...

Page 37: ...the immersion heater You can find a wiring sheme on the inside of the cylinder cover 5 8 3 Combination options of the control components Boiler used eBUS capable boiler such as the Vaillant ecoTEC or...

Page 38: ...ring schemes 2 or 4 1 2 3 N L 1 7 2 10 3 To wiring box 1 2 3 1 Fig 5 21 Electrical connection of the cylinder thermostat Wiring of the control components Wiring scheme 1 eBUS capable Vaillant boiler W...

Page 39: ...e immersion heater solar cylinder and solar control fit properly in the immersion sleeves Connect the collector temperature sensor to terminal Kol 1 in the auroMATIC 560 solar control Establish the co...

Page 40: ...Brown Grey Orange Earth Blue Brown Grey Orange Hot Water 2 Port Valve VR 65 DHW add terminal strip LEG BYP Central Heating 2 Port Valve VR 65 CH auroSTOR cylinder 3 amp fused supply Boiler terminal s...

Page 41: ...nal SP 2 in the auroMATIC 560 solar control Attach the temperature sensor for the gain 2 to the return pipe of the solar circuit nearby the solar cylinder Connect this temperature sensor to the termin...

Page 42: ...Valve Central Heating Programmer 230 V 230 V 230 V LP UV 1 LEG BYP VRS 560 solar control 230 V EP Coll NTC auroSTOR additional terminal strip auroSTOR cylinder TCO collector pump additional terminal s...

Page 43: ...emperature sensor to terminal SP 1 in the auroMATIC 560 solar control Push a VR 10 temperature sensor 3 in the immersion sleeve for the bottom cylinder area Connect this temperature sensor to terminal...

Page 44: ...get temperature if the solar system is not operating and if the hot water programmer is on h Note Programme the separate hot water programmer to provide hot water when required by the customer Conside...

Page 45: ...mp Hot Water 2 Port Valve 3 amp fused supply 230 V any Vaillant boiler Central Heating 2 Port Valve Central Heating Programmer 230 V TCO collector pump VRS 560 solar control TCO and cyl thermostat aur...

Page 46: ...ct this temperature sensor to terminal SP 2 in the auroMATIC 560 solar control Attach the temperature sensor for the gain 2 to the return pipe of the solar circuit nearby the solar cylinder Connect th...

Page 47: ...iler Terminal Strip 230 V LP UV 1 additional terminal strip LEG BYP not used to 10 way wiring box NOT separate fused spur Central Heating 2 Port Valve 230 V Hot Water 2 Port Valve auroSTOR cylinder TC...

Page 48: ...1 in the auroMATIC 560 solar control Push a VR 10 temperature sensor 3 in the immersion sleeve for the bottom cylinder area Connect this temperature sensor to terminal SP 2 in the auroMATIC 560 solar...

Page 49: ...mer to provide hot water when required by the cus tomer Consider carefully when the solar system might be running and try to time to HW pro grammer to run when there is unlikely to be any solar gain h...

Page 50: ...Heating Pump if not in boiler 230 V Collector Pump additional terminal strip LEG BYP TCO collector pump EP additional terminal strip auroSTOR cylinder Coll NTC auroSTOR TCO and cyl thermostat VRS 560...

Page 51: ...er secondary circuit refer to Section 6 4 Set the hot water thermostatic mixing valve refer to Section 6 5 Fill the reheating circuit refer to Section 6 6 Use only Vaillant solar fluid item no 302 429...

Page 52: ...Switch off the filling pump and switch on the solar pump 13 to allow air bubbles to escape via the bleeder Block the gravity brakes 8 and 14 position 45 to discharge the remaining air When bleeding i...

Page 53: ...m2 min it results in a calculated flow rate of 1 6 l min which should be indicated by the flow rate meter see Fig 6 2 For the design and function of the flow rate meter refer to Section 4 5 Flow rate...

Page 54: ...the motorised 2 port valve by setting it back to AUTO 2 1 1 2 3 N L immersion heater C cylinder control C Fig 6 4 Setting thermostats Set the knob of the hot water thermostat of the solar cylinder 2 F...

Page 55: ...gain a Note In areas with hard water the set hot water temperature should not exceed 45 C to avoid calcification Go through the operating manuals with the owner and answer any questions Point out the...

Page 56: ...nction on off automatic Annually Check the sensor temperature display Annually Secondary return reheating Check the circulation pump Annually Check the timer time programme settings Annually Reheating...

Page 57: ...peed or unblock the rotor insert a screwdriver in the notch and turn it by hand 5 Pump dirty Dismantle the pump and clean it Close the flow rate meter and pump ball valve 6 Pump defective Replace the...

Page 58: ...valve and replace it if necessary Pressure limiting valve defective Replace the pressure limiting valve Blockage in the system Unblock the blockage and replace any blocked parts Check the system for...

Page 59: ...Dirt on the valve seat of the expansion relief valve Check the expansion relief valve and reset it manually Pressure limiting valve defective Switch off the boiler and immersion heater and check wheth...

Page 60: ...ystem How to control the solar system is described in the manuals for each controller h Note In the event of leaks in the water pipework close the cold water stop valve at the cylinder immediately to...

Page 61: ...clean the exterior of the solar cylinder with a damp cloth and a little soap a Caution Risk of damage Do not use any abrasives or solvents since they could damage the exterior or the connections 9 6...

Page 62: ...er enough hot water Check whether the standby cylinder temperature has been set properly on the controller approx 60 C recommended Check the hot water thermostat mixer setting approx 60 C recommended...

Page 63: ...fill vent valve checked for leaks retighten union nuts if necessary Temperature and pressure relief valve checked Stop valve for reheating source installed normally motorised 2 port valve Flow rate s...

Page 64: ...gnation Serial number Boiler system type Open Closed Installation location of pressure limiting valve System values Hot water temperature at the nearest tap C Achievable maximum cylinder temperature C...

Page 65: ...see installation manual of solar control C Switch on temperature difference Kelvin Switch off temperature difference Kelvin Other settings Important activated functions Name of the installer in block...

Page 66: ...Manual Solar hot water systems 66 11 Start up protocol...

Page 67: ...67 Manual Solar hot water systems Start up protocol 11...

Page 68: ...0020009607_01 GB 012007...

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