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INSTALLATION AND MAINTENANCE MANUAL SI 150 / 2
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C O N T E N T S
Introduction 3 Warrantee 4 Declaration of conformity 5 1 .GENERAL REQUIREMENTS 6 1.1 Standards 1.2 Collector labeling
2 .INSTALLATION INSTRUCTIONS SI 150/2 7 Technical characteristics Dimensions and weights 3 .SI 150 / 2 MOUNTING KIT MANTLING STEPS 9 4. SI 150 /2 COLLECTOR AND STORAGE TANK INSTALLATION ON MOUNTING KIT 10 5 . SI 150/2 ACCESSORIES 11 6 . COLLECTOR COUPLING 12 7 . FILLING THE COLLECTOR 13 8.VENTILATION 14 9 . STORAGE TANK ELECTRICAL CONNECTION 14 10. LIGHTNING PROTECTION 15 11. ANTIFREEZE PROTECTION 15 – 16 12. MAINTENANCE REQUIREMENTS 17 12.1 General 12.2 Regular maintenance by the user 12.3 Maintenance by service crew every three years
13 .TROUBLESHOOTING – PROBABLE CAUSE – SOLUTIONS 18 14 . ANNEX Inspection and maintenance recording papers 19
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Introduction We would like to thank you for choosing a Sigma solar water heater. We would like to assure you that each Sigma product is confronted with the general requirements imposed by the European Norms, related to solar systems qualifications. In this pamphlet, you will find any details necessary for your solar water heater mantling, installation and an excellent state of working conditions. We would like to point you out the excellent quality of our materials, tested, certified and harmonized with all European standards. In any case, please don’t hesitate to reach us for further details.
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Warrantee
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Declaration of conformity
The undersigned A. and G. Samouil , Sigma co. declare under our sole responsibility that our product SI 150/2 is in conformity with the EC Directives :73/23/EEC : low voltage directive , harmonized with the ELOT standards : EN 60335, EN 60335‐2‐21 and DIN 4573 . Technical documentation required by the conformity procedure is kept at company headquarters. COMPANY A. et G. Samouil , Sigma co. ADDRESS 112 Athinon avenue , 38334 , Volos COUNTRY Greece TEL . 00302421066551 FAX 00302421060091 EMAIL [email protected] , sigma@sigma‐sa.com INTERNET www.sigma‐sa.com
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1. GENERAL REQUIREMENTS
1.1 Each solar water heater has to be confronted with the general requirements imposed by European standards related to flat solar thermal water heaters quality and performance evaluation. Standards are : I ) ΕΝ 12975 – 1 ( solar collector general requirements ) II ) ΕΝ 12975 – 2 ( qualification tests of glazed liquid solar collectors ). III) ΕΝ 12976 – 1 (solar water heating system general requirements) IV) ΕΝ 12976 – 2 ( thermal performance of solar domestic water heating systems) . 1.2 Solar water heater labeling On each solar collector an ineffaceable distinctive label is been stuck ( upwards and on the left side ) , containing the following data :
Manufacturer name
Solar water heater type
Serial number
Production year Ολική επιφάνεια του συλλέκτη / των συλλεκτών του συστήματος
Collector gross area
Collector aperture area
Storage tank nominal capacity
Maximum working pressure
Working pressure
Protection against overheating
All electric parts voltage
Liquid
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2 .INSTALLATION INSTRUCTIONS SI 150/2
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SI 150 / 2 Dimensions and weight 1. Mounting kit dimensions :
2. Weights : Mounting kit : 16 kg Collector ( empty ) : 40 kg Storage tank ( empty ): 60 kg
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3 .SI 150 / 2 MOUNTING KIT MANTLING STEPS
Mantle the two supporting blades ( 3.1 , 3.2 & 3.3 ) using the screws and screw nuts . Slightly loose screw. Put in opposite directions the two supporting blades ( that you have already mantle ) and attach them with the diagonal stabilization blades ( 3.4 )using screws and screw nuts .Slightly loose screw. Choose the place at your roof , where you will install the solar water heater , taking care that it faces :SOUTH . Stabilize the mounting kit on the roof cement using relief plugs.
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4 .SI 150 /2 COLLECTOR AND STORAGE TANK INSTALLATION ON MOUNTING KIT Having finished mounting kit mantling , stabilize the mounting kit on the roof , mantling its parts rather loose . INSTALLATION STEPS
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5 . SI 150/2 ACCESSORIES
4.1 Galvanized female elbow ½ for the storage tank 1 piece
4.2 Brass PEX elbow φ22 x ¾ male 1 piece
4.3 Brass male elbow ½ x ¾ 1 piece
4.4 Plastic PEX pipe φ22 x 3 length 2.50m 1 piece
4.5 Flexible pipe φ ¾ length 0.75m 1 piece
4.6 Female cap ½ 1 piece
4.7 Closed circuit pressure relief safety valve 1 piece
4.8 Check safety valve . Safe function pressure 6 bar 1 piece
4.9 Clamps for flexible pipe φ ¾ 2 pieces
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6 . COLLECTOR COUPLING
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7 . FILLING THE COLLECTOR
1 . Fill in collector with water from the long plastic pipe 4.4 until a small quantity of water overflows from the short flexible pipe 4.5 , sign that collector is full and ventilated . 2 . Then you connect :
Filling is done using water and antifreeze. The recommended antifreeze is propylene glycol that is non‐toxic. Quantity of propylene glycol shall depend upon frost conditions.
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Filling of the collector(s) with water and antifreeze shall be done in the morning or in the afternoon during summer months, in order to avoid forming of air bubbles due to overheating, thus causing air trapping, because then the system would not be properly ventilated and it is possible to retain which would reduce performance. Filling up of the collector(s) is to be done with low flow, to let liquid to come out from the opposite copper pipe for better ventilation. The filling with antifreeze is to be done according to the instructions of the antifreeze (see table) i.e. according to the exterior temperature ▫C under which the system is functioning.
8.VENTILATION
Special attention is needed to provide adequate ventilation for the collector(s) so the system runs without problems. Let the hot water ‐ liquid to flow from the opposite site of the filling. Do not fill the system when the collector has been exposed to sun for more than 15 min in summer months and more than 30 min in other cases, because overheating would cause the formation of bubbles in the collector’s loop resulting in malfunctioning.
9 . STORAGE TANK ELECTRICAL CONNECTION For hot water during cloudy days , there is the storage tank electric resistance as a backup .
1 ) Storage tank has to be already full of water . 2 ) Adjust the security thermostat to 50 – 60 ° C.
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10. LIGHTNING PROTECTION In case the collector, is placed on the highest part of the building as usual, special measures for lightning protection shall be taken according to the pertinent regulations. One lighting rod should be considered to install .If there is ready – made lightning protection device, please connect it with collector .
11. ANTIFREEZE PROTECTION
Depending on the place of the collector(s) installation there are potential freezing conditions that can cause damage to the collector and the piping. Thus the use of propylene glycol as antifreeze for the protection of the collector(s) and piping is obligatory . The following table gives the necessary volume ratio of antifreeze (water‐antifreeze mixture) for protection against low ambient temperatures, while table no 2 gives the capacity of collector S 2.0 in water.
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ATTENTION: for the right ratio, you have to increase the ratio of the capacity of the collector S2.0, in antifreeze, with the additional quantity
A) of the piping form the collector to the boiler B) with the capacity of the closed system of the storage tank .
Tables N° 1 – N° 2
TABLE N° 1
Propylene glycol solution
Temperature Propylene Glycol Water
5 15% 85%
‐15 30% 70%
‐25 40% 60%
TABLE N 2° Collector S 2.0 capacity
Collector S 2.0 Piping Capacity Storage tank capacity
capacity 2.00 lt according to distance and cross section size
see manufacturer’s data
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12. MAINTENANCE REQUIREMENTS 12.1 General The collector(s), as all other devices, needs basic maintenance to ensure constant and high performance at all times. There are various actions that can be done by the user; other actions must be carried out by the manufacturer’s licensed service crew. For high performance and long service life of the entire water heating ‐ distribution installation , maintenance is required and for the rest of installation (boiler, piping, control systems). 12.2 Regular maintenance by the user It is preferred that the user checks twice per year the place where the collector(s) is placed and visually controls the collector and the rest of the components. More specifically: ‐check the leaks in collector’s piping and the leaks in components ‐check for any condensation of the collector ‐check the installation of the collector on the mounting kit and the screws on the mounting kit in order to find any loose screws because of the wind etc. ‐if for any reason there is a need to fill the closed system of the collector with water, you should also add antifreeze to retain the ratio according to table No. 1 ‐Observe any probable cracking of the collector’s glass ‐ Observe the clarity of the glass ‐Observe the condition of the piping insulation conveying water from the collector to the boiler Cleaning of the collector’s glass, when required, is best done without too much sun. It is recommended that a skilled authorized technician visits the installation in all other cases. In case of glass cracking, the glass should be replaced immediately because there is risk of collector corrosion. 12.3 Maintenance by service crew every three years It is recommended that the following controls shall take place periodically every three years by a licensed team: ‐check glass (cleaning, cracking, shading of collector) ‐check collector’s support on the mounting kit ‐check water‐tightness of collectors ‐check insulation of collector It is recommended that the licensed team fill in a printed form quoting the following: ‐works done ‐spare parts ‐possible damages These data appear in the relative maintenance‐inspection data sheet in page 18.
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13 .TROUBLESHOOTING – PROBABLE CAUSE – SOLUTIONS
Troubleshooting Probable cause Solutions
When installed there is no hot water .
The solar water heater reaches the optimum performance two days after the installation. During these two days, it is recommended to avoid hot water consumption, even if there is sunshine.
Please wait until next days noon(sunshine obligatory )
Even though , a whole day has passed , no sufficient hot water .
1 )There is air trapped in the collector closed circuit 2 ) There is a leakage in the closed circuit .
1 )Ventilation needed. 2 ) Check the leakage and fill closed circuit with water
Though before there was hot water, now there is not.
1 )Water mixture between storage tank and solar water heater . 2 ) Valves problem 3 )The consumption of hot water is bigger than the appliance's capacity. Huge hot water consumption during the night.
1 ) Check the valves and set off the solar water heater valves. 2 ) Call installators to check if the valves are damaged .
Cold water tabs give hot water.
Valves or hydraulic problem.
Check the hydraulic installation. Ensure that the supply of hot water is not connected to a supply of cold water.
Hot water exists , but there is a small leakage on the roof .
Probably there is a connection leakage between collector and pipes ,
Tight or change the screws
Water adding in closed circuit , in order to get a good function .
Closed circuit leakage ( either collector or pipes).
Locate the leakage.
Hot water exists ,but you can see moisture or greenery on collector down part
Reasonable deliquescence caused by temperature difference .
Expected phenomenon ,not decreasing solar collector lifetime .
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14 . ANNEX Inspection and maintenance recording papers
1 Date
Works Description
Accessories
Remarks
Inspector’s name and signature
2 Date
Works Description
Accessories
Remarks
Inspector’s name and signature
3 Date
Works Description
Accessories
Remarks
Inspector’s name and signature