Clean Energy SOLAR THERMAL Manuale utente
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SOLAR THERMAL USER MANUAL.
Table of Contents
1.0 Introduction
1.1 Equipment Supplier Details .......................................................................................................................................... 2
1.2 Installer Details ............................................................................................................................................................. 2
1.3 About This Document ................................................................................................................................................... 2
2.0 How to effectively use the Solar System
2.1 The Solar Controller ...................................................................................................................................................... 3
2.2 How Your Solar System Functions ................................................................................................................................ 5
2.3 Effective use of Your Solar System ............................................................................................................................... 5
2.4 Going on Holiday........................................................................................................................................................... 6
2.5 During and After Power Failure .................................................................................................................................... 6
2.6 During Extreme cold weather ....................................................................................................................................... 6
3.0 Health & Safety
3.1 Hot solar pipes .............................................................................................................................................................. 6
3.2 Anti-scalding Protection ............................................................................................................................................... 6
3.3 Legionella Control ......................................................................................................................................................... 6
3.4 Material Safety Data Sheet for Antifreeze.................................................................................................................... 7
3.5 Electrical safety ............................................................................................................................................................. 7
4.0 System Maintenance
4.1 Owner Maintenance ..................................................................................................................................................... 7
4.2 Professional Maintenance ............................................................................................................................................ 7
5.0 Fault Finding ..................................................................................................................................................................... 8
6.0 Decommissioning.............................................................................................................................................................. 8
7.0 End of Life instructions ..................................................................................................................................................... 8
8.0 Warranty Information....................................................................................................................................................... 8
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1.0 Introduction
1.1 Equipment Supplier
Clean Energy Ireland Ltd
Rathard, Aherla, Co. Cork
Telephone: 021 4289407
www.CleanEnergyIreland.ie
1.2 Equipment Installer & Commissioner.
Same as above.
1.3 About this Document.
No liability is accepted for incorrect use, unauthorized changes to the assembly components, or the resulting
consequences. All information and instructions in this manual refer to the current state of development.
Figures and illustrations used.
Due to the possibility of setting and printing errors, and to the need for continuous technical change, please
understand that we cannot accept liability for the correctness of the data.
The current version of the General Terms of Business applies. Any photographs used are for illustrative
purposes only. These assembly instructions contain proprietary information. All rights and changes to these
assembly instructions are reserved.
This document cannot be copied or forwarded to any persons or organisations without prior consent from Clean
Energy Ireland.
Your solar installation will provide you with years of free solar energy, design to heat 60-70% of your annual
hot water demands. To get the best benefits from the installation, you are advised to read the following manual
carefully.
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2.0 Effectively Using Your Solar System
2.1 The Solar Controller:
The solar controller monitors the solar system and controls the operation of the solar pump to ensure maximum
efficiency.
Solar Controller Table 1.0 Table 2.0
Principle of Operation
The controller is operated by 4 pushbuttons below the display. Their functions are explained in table 1.0.
The range of symbols on the display are illustrated in table 2.0.
The parameters in the controller should not be altered by the owner unless specific training/instruction is
provided.
Information Menu:
Table 3.0
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The Programming Menu:
The operating parameters are displayed and changed if necessary in the programming menu.
The controller is assigned factory settings. These parameters should not be adjusted.
Table 4.0
Manual Operation Menu:
The automatic operation is switched off during manual operation. The outputs can be manually switched on and
off for servicing and testing purposes.
Table 5.0
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2.2 How Your Solar System Functions
The controller operating parameters should only be changed by a suitably trained technician.
The solar controller decides when to switch on/off the solar pump; it makes decisions based on a few factors.
The solar controller switches on the circulating pump when the temperature difference between the collector
and the lower part of the storage cylinder is greater than the specified value (dT-MAX). While the pump is
running, the heated anti-freeze in the collectors is transferred to the lower coil in the cylinder. Here the heat is
transferred to the water in the cylinder. The cooler anti-freeze returns to the collector to be reheated. The pump
switches off again when the temperature difference between the collectors and lower part of the cylinder has
fallen below the appropriate specified switching value (dT-Min).
2.3 Effective Use of Your Solar System.
Your solar system has been designed and installed for a long useful life.
Effective use and maintenance of your solar system will prolong its useful life. The following is a guide to
using your solar system.
1. During periods of fine weather try use hot water daily.
2. The hot water cylinder should have its own heating zone (including timer and tank stat). The cylinder
should only be heated in the evening provided the solar has not produced enough heat during the day.
3. Try avoiding prolonged periods of solar idleness as this will degrade the solar anti-freeze quicker.
(if prolonged periods of idleness are common it may be advised to fit a heat dump in your solar circuit).
4. Monitor the temperature produced in the solar circuit regularly and report any temperature excesses.
5. Monitor the pressure in the solar circuit; report any decline in pressure, failure to do so may damage
solar pump station.
6. As per NSAI standard recommendations, with regular use maintenance should be performed every year.
7.
Figure 1.0 Solar System Schematic.
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2.4 Going on Holiday
Your solar system is designed to stagnate at high temperatures during times of inactivity. There are several built
in safety functions to protect user and solar system during periods of inactivity, for example:
Maximum Temperature setting on solar controller.
Solar Expansion vessel.
Pressure relief valve.
If there is planned long periods of inactivity (>5 weeks) during possible high summer temperatures then the
owner should consult with his/her solar suppliers/installers and fit a heat dump.
2.5 During and After Power failure.
If a power failure has occurred (or power otherwise temporarily removed) and the power is returned to the
controller then the solar system will resume normal service unless the collectors have reached very high
stagnating temperatures. If the collectors are in a stagnation state then the controller will recognise this and will
not permit the pump to operate. The controller will resume normal service when the collectors have cooled to a
safe operating temperature. There will be a flashing warning sign on the controller LCD display when the
collectors are at a very higher temperature, this is normal and the warning sign will be removed when the
collectors cool.
2.6 During Extreme cold Weather.
The solar system is filled with Anti-freeze which has a normal freezing point of -20 and -30 degree Celsius.
If the solar system is properly maintained then the owner should have no concern during very cold weather.
If the system is poorly maintained the owner should contact the installer if very cold weather is expected.
3.0 Health and Safety.
3.1 Hot Solar Pipes.
The flow and return pipes to the cylinder can get very hot; these pipes should be fully fitted with a solar
insulation. It may not be possible to fully insulate the fittings in the cylinder and care should be taken not allow
children to touch these pipes.
3.2 Anti-Scald Protection
An Anti-Scald valve mixes cold water to very hot water making the water exiting the cylinder safe for use. The
device can provide various temperatures (normally between 30C and 70C, normally 60C) and can be varied
by owner. The owner should ensure an anti-scald valve is fitted to where the hot water exits the cylinder.
3.3 Legionella Control
Legionella are bacteria which are present in trace quantities everywhere in water and which can reproduce
rapidly in hot water at favourable temperatures (around 35C). These bacteria present no danger to humans in
the gastro-intestinal system; however they can be inhaled in minute droplets (as an aerosol) into the lungs, for
example under a shower and can cause clinical symptoms like pneumonia which may lead to death. Ill and
elderly people are particularly at risk. Legionella control applies to all water heating facilities and not just solar.
The owner should ensure there is a thermostat fitted to the cylinder which is wired to a timer and back to the
boiler, the cylinder thermostat should be set to 60C. The timer should tell the boiler to heat the cylinder every
day between 5pm and 6pm -assuming the solar has not heated the cylinder to 60C.
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This measure assures the user has hot enough water to use while disinfecting the top of the cylinder and hot
water pipes. Alternatively the cylinder immersion should be set to 60 C and again timed to heat cylinder every
evening.
3.4 Material Safety Data Sheet.
The anti-freeze used in a non-hazardous, non-flammable liquid. Material Safety Data (MSDS) sheets are
available on request.
3.5 Electrical Safety
Under no circumstances should the controller or pump be opened especially while the power is still connected.
4.0 System Maintenance
4.1 Owner Maintenance.
Periodically check in the evening time that the pressure is still as per the commissioning pressure, if not contact
the installer/commissioner. Failure to do so may make your system less effective and may damage circulating
pump. Regularly check if the system is operating during the day and heating the cylinder. The owner should be
aware of any shading developing, i.e. from next door neighbour or own vegetation. In areas of construction the
glass panes may develop a sheet of soiling which is not washed away by rain and will require washing.
4.2 Professional Maintenance. (Frequency: every 12 months)
Collector glazing and seals
Look for cracks in the collector glazing, and check to see if seals are in good condition.
Collector soiling
Dusty or soiled collectors will perform poorly. Periodic cleaning may be necessary in dry, dusty
climates
Plumbing, ductwork, and wiring connections
Look for fluid leaks at pipe connections and components. Check pipe seals.
Piping and wiring insulation
Look for damage or degradation of insulation covering pipes, and wiring.
Roof penetrations
Flashing and sealant around roof penetrations should be in good condition.
Storage systems
Check storage tanks/vessels, for cracks, leaks, rust, or other signs of corrosion.
Pumps
Verify that circulation pump is operating smoothly.
Heat transfer fluids
The antifreeze should be checked for a freezing point of -25C to -35C, if the freezing point is between
-25C and 0C then the antifreeze should be replaced back to -35C. The ph of the antifreeze should
remain at approx 7.0 1, otherwise the antifreeze should be replaced.
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5.0 Fault Finding
9 Troubleshooting
System faults are distinguished into two general categories:
7.1 Faults that are automatically detected by the controller and therefore can be displayed using error
messages.
7.2 Faults that the controller cannot detect.
Table 7.0 Faults with Error Messages. Table 8.0 Faults the controller cannot detect.
If you cannot remedy the fault using the description above, contact the supplier or installer.
6.0 Decommissioning
The system should be decommissioned if a house is left unoccupied for extended periods (greater than 3
weeks). The decommissioning should be performed by a trained installer or trained maintenance technician.
Care should be taken as very hot liquid and steam may be emitted during the process. The solution is removed
by draining through the drain point. The power is permanently switched off.
7.0 End of Life Instructions.
When the collectors or other components have reached the end of their useful life the suppliers will accept back
the components and will safely recycle.
8.0 Warranty Details.
The INTEGRA panel and roof flashing warranty extends to 7 years on the condition that the system is
maintained as recommended and maintenance records are kept, this excludes breakage of glass. The other
components of the solar system are warranted against defects in materials for 12 months from the date of
supply provided that all guidelines are adhered to and the customer does not change or modify any parts of the
system or factory controller settings. This guarantee is on parts only basis excluding labour charges.
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