SUN&HEAT THERMOSIPHON 150/2.5, Maintenance And Installation Manual

Page 1: ...NTENANCE AND INSTALLATION OF THE SOLAR DOMESTIC WATER HEATER INSTRUCTIONS FOR USE MAINTENANCE AND INSTALLATION OF THE DOMESTIC WATER HEATER SOLAR THERMOSIPHON 150 2 5 TYPICAL INSTRUCTIONS FOR A CLOSED LOOP THERMOSIPHONIC SYSTEM ON A FLAT ROOF SUN HEAT SOLAR PRODUCTS SUN HEAT SOLAR PRODUCTS ...

Page 2: ... THERMOSIPHON 150 2 5 TYPICAL INSTRUCTIONS FOR A CLOSED LOOP THERMOSIPHONIC SYSTEM ON A FLAT ROOF ...

Page 3: ...be liable for any decision made by a client or any reader based on our analysis or any other advice supplied No part of this publication may be reproduced by any means or transmitted or translated for commercial purposes without the written permission of the editor Any comments and questions on this publication may be sent to n komioti exergia gr CAUTION These Instructions for Use Maintenance and ...

Page 4: ...ized dealer or the Service Department of SUN HEAT 13 16 4 1 Components of the solar water heater 16 4 2 Necessary special tools and materials 16 4 3 Removing packaging 16 4 4 Collector orientation 19 4 5 Site 19 4 6 Assembly of the mounting frame 19 4 7 Fastening the collector on the mounting frame 23 4 8 Mounting the hot water storage tank 25 4 9 Installing the connection pipes between the storag...

Page 5: ...ng Valve which restricts the hot water temperature from the solar water heater below 60oC see paragraph 1 7 BASIC PRODUCT SPECIFICATIONS Solar collector area 2 5 m2 Absorber surface Copper fins Matt black paint Collector front cover Tempered glass 4mm thick Collector tilt 45o with respect to the horizontal plane Hot water storage tank volume 150 litres Hot water storage tank corrosion protection G...

Page 6: ... through these instructions carefully and be sure to keep them handy in a safe place for future reference By following these instructions you will be able not only to take advantage of the high potential of the solar system for more hot water but you will ensure its reliable performance and longevity ...

Page 7: ...re develops inside the storage tank for any number of reasons it is likely that water will leak through the safety valve which is activated for the protection of the tank It is noted that this water may have high temperatures 1 1 A general description of how a DHWS operates The SUN HEAT Thermosiphon 150 2 consists of the collector the hot water storage tank where water is heated and stored the sup...

Page 8: ...res The SUN HEAT solar water heater that you have bought is well insulated to minimize heat losses When hot water from the solar heater is used in the afternoon of a sunny day its temperature remains steady for quite a long time The temperature of the hot water during usage remains steady until a large percentage of the total volume of the water in the storage tank is consumed This percentage also...

Page 9: ...mperature of hot water in the storage tank decreases slightly If hot water at a temperature of between 50o C 60o C is left inside the solar system during the night its temperature may drop by 4o C 10o C by the next morning depending on the area and the weather conditions ambient air temperatures of 0o C 10o C Detailed data exist in the test report based on relevant standards EN 12976 2 ISO 9459 2 ...

Page 10: ...rder of 60o C A domestic solar system can develop during summer water temperature higher than 60o C it can be up to 95o C under some conditions limited use of the hot water A mixing valve to mix in some cold water see Figure 4 14 installed at the hot water outlet of the domestic solar system can control the hot water temperature so that it does not exceed 60oC Under these conditions hot water from...

Page 11: ... of the back up heating system electric heater The SUN HEAT solar water heater is equipped with an electric heater as a supplementary source of energy for the winter when the available solar radiation is rather low or in case of insufficient or no sunlight or very high demand for hot water CAUTION Repair work on the electrical parts of the solar water heater should only be done by a licensed elect...

Page 12: ...ther conditions use the back up heating system electric resistance only if you are sure there is a flow of water from the solar system to taps in the house which means that the water in the pipes has not frozen Otherwise there is danger of destroying the storage tank see paragraph 1 9 CAUTION If for some reason there is a leakage in the closed loop of the solar water heater and it is necessary to ...

Page 13: ...nshine that is at times when the fluid in the closed loop is at a low temperature Properly attach again the part removed expansion tank safety valve In the case when repeated addition of antifreeze solution is necessary possible leakage points must be located and repaired This must be done by an authorized dealer or by the Service Department of SUN HEAT ATTENTION At times when there is sunshine th...

Page 14: ...ct the solar system with the city water network and the house The owner is advised to periodically clean the collector surface CAUTION The collector should be washed at times without much sunshine i e either early in the morning of a sunny day or later at the end of the day In any other case it is advisable to consult an authorized dealer or the service department of the SUN HEAT company The close...

Page 15: ...ve in the inlet of the cold water to the tank inspection of the inside of the tank and removal of any mineral deposits from the domestic water inspection of the electric heater and the thermostat inspection of the anode inspection of the metal flange with the electric heater thermostat and the anode replacement of the sealing flange of the above metal flange inspection for leaks at the connection ...

Page 16: ...operation inspection of the efficient operation of the solar by the sun water heater by the sun ATTENTION It is advisable to record data concerning maintenance after an inspection or after repair work has been done on your solar domestic hot water system In the Annex at the end of this leaflet there is a special table to record such data You must demand that the technical expert fill in the approp...

Page 17: ...f the hot water storage tank Figure 4 1b component 10 as well as required fittings two containers one litre each with antifreeze the required quantity of corrosion inhibitor screws and nuts for the mounting frame and for attaching the collector on the mounting frame It is recommended to remove all packaging material from the tank the collector the mounting frame and the other components at the sit...

Page 18: ... 4 Electric heater flange side of the tank electric heater thermostat anode 5 Expansion tank of the closed loop 6 Safety valve pressure of the closed loop 7 Closed loop cold pipe fluid flows from the tank to the collector 8 Closed loop hot pipe fluid flows from the collector to the tank Figure 4 1a Basic components of the Thermosiphon 150 2 5 solar water heater 3 7 4 8 5 6 2 ...

Page 19: ... Mounting frame 9 Domestic hot water outlet from the storage tank 10 Combined safety pressure one way valve 11 Domestic cold water inlet to the storage tank Figure 4 1b Basic components of the Thermosiphon 150 2 5 solar water heater 1 10 2 9 3 11 ...

Page 20: ...ter so that the collector is not shaded by trees buildings or other solar systems because their shadow during the period 09 30 to 15 30 will reduce the performance of the solar water heater small shadows early and late in the day make no difference in it it is possible to install and fasten the solar heater in a reliable way on the flat roof of the building the distance between the solar water hea...

Page 21: ...ed 45o leg 24 Diagonal connector 25 Horizontal connector 27 Lower collector support bar see Figure 4 7a 28 Upper collector support bar see Figure 4 7b Figure 4 2 Part of the mounting frame of the solar water heater Thermosiphon 150 2 5 22 23 23 25 24 22 21 ...

Page 22: ...igure 4 3 Attaching the tank circular arc support to the vertical leg Step 1 21 Tank circular arc support 22 Vertical leg 23 Inclined 45o leg Figure 4 4 Attaching the inclined leg to the vertical leg of the mounting frame Step 2 21 22 22 21 21 23 22 ...

Page 23: ... 22 Vertical leg 24 Diagonal connector Figure 4 5 Attaching the diagonal connectors between the two vertical legs Step 3 22 24 22 24 24 ...

Page 24: ... collector frame It is emphasized that it is necessary to place the collector so that it has a slight upward tilt to the right as you look at it from the front Figure 4 1a If it is tilted in the wrong direction the solar water heater will not function properly improper thermosiphonic flow natural convection Finally tighten all bolts and nuts of the lower and upper collector support bars CAUTION Pl...

Page 25: ...han 150o C Under these conditions there is the possibility of boiling of the heat transfer fluid when it will be put in the collector and as a consequence the danger of an accident In addition the connecting ends of the collector will develop high temperature 2 Solar collector 27 Lower collector support bar Figure 4 7a Fastening the collector on the mounting frame Step 1 27 27 2 ...

Page 26: ...est point 4 9 Installing the connection pipes between the storage tank and the collector Figure 4 1a provides an overall picture of the connecting pipes between the collector and the hot water tank Figure 4 8 shows the connection pipe and the fittings between the collector outlet and the inlet to the heat exchanger of the tank Figure 4 9 shows the connection pipe and the fittings between the outle...

Page 27: ...own in Figure 4 11 In Figure 4 12 vinyl tape has been used to attach the pipe insulation in the fitting at the inlet to the heat exchanger of the tank Similarly vinyl tape has to be used in the collector inlet and outlet 1 Hot water storage tank 2 Solar collector upper corner 8 Closed loop hot pipe flow from the collector to the tank Figure 4 8 Connection pipe and fittings between the collector ou...

Page 28: ...ank 2 Solar collector 7 Closed loop cold pipe flow from the tank to the collector Figure 4 9 Connection pipe and fittings between the outlet of the tank heat exchanger and the collector inlet 7 Tank heat exchanger outlet 1 2 ...

Page 29: ...ank 1 Hot water storage tank 7 Closed loop cold pipe flow from the tank to the collector 10 Combined safety pressure one way valve Figure 4 11 The insulation of the pipe 7 covers completely the fitting at the outlet of the heat exchanger of the tank 7 Heat exchanger outlet Storage tank 10 ...

Page 30: ...er two valves One in the cold water supply pipe and one in the hot water pipe to the house in order to be able to isolate the solar heater for any kind of intervention maintenance repair on it IMPORTANT It is recommended to discuss with the customer the possibility for the installation of a Mixing Valve see paragraph 1 7 Such a mixing valve is not provided In case that the customer agrees for its ...

Page 31: ...ntion should be given to the water proofing of the points of fastening Silicone sealer should be put in the holes before inserting the fastening parts Further silicone sealer should be put around the fastening points as shown in the lower photo of Figure 4 15 1 Hot water storage tank lower part 10 Combined safety pressure one way valve Figure 4 13 Attaching the combined safety pressure one way val...

Page 32: ...arger amount of antifreeze The table on the antifreeze container shows the required proportion of antifreeze and water according to the desired minimum ambient air temperature Mix all of the antifreeze liquid with the appropriate quantity of clean water in a container Please add the provided quantity of the corrosion inhibitor WARNING The collector ought to had been shielded from the solar radiati...

Page 33: ... Figure 4 15 Steps for fastening the mounting frame on a flat roof and water proofing of the relevant point ...

Page 34: ...ould be used to provide power to the electric heater It is recommended that the cable is inside of an appropriate protective pipe For the connection of the power cable you should first remove the cover of the flange of the hot water storage tank with the electric heater the thermostat and the anode The cable to the electric heater should be connected according to the instructions shown on the conn...

Page 35: ...for higher efficiency and protection against frost Fix the pipes onto the floor surface as well as onto the walls to avoid problems appearing during operation of the solar water heater It is recommended that the insulation covering the pipes is either shielded from the solar radiation by appropriate material or it must be painted with special paint so as to avoid degradation CAUTION If the pressur...

Page 36: ... 1 Date Service by Description of works New parts Comments 2 Date Service by Description of works New parts Comments 3 Date Service by Description of works New parts Comments ...

Page 37: ... 4 Date Service by Description of works New parts Comments 5 Date Service by Description of works New parts Comments 6 Date Service by Description of works New parts Comments ...

Page 38: ...nean Countries following the Successful Model of Greece PART B Italy France Romania Bulgaria and Turkey Contract No NNE5 2002 86 Editor EXERGIA S A ENERGY ENVIRONMENT CONSULTANTS Apollon Tower 64 Louise Riencourt Str 115 23 Athens Greece e mail office exergia gr http www exergia gr ENERGY ENVIRONMENT CONSULTANTS ...