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Dimplex ST0133 - page 1
Page 1 of 72 ST0133 – A 02/09 SOLAR Technical Manual Complete guide to Dimplex Solar ...
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Dimplex ST0133 - page 2
Technical ma nual Page 2 of 72 ST0133 – A 02/09 SOLAR 1 Contents 1 CONTENTS 2 2 BEFORE YOU START 4 G ENERAL 4 3 SOLAR THERMAL 4 3.1 I NTRODUCTION 4 3.2 S OLAR RADIATION 4 3.1.1 Available s olar radiation 4 3.1.2 Orient ation 6 3.3 S OLAR THERMAL SYSTEM 8 3.3.1 Components of a solar thermal syst em 8 3.3.2 Function of a sola r thermal system 10 4 ...
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Dimplex ST0133 - page 3
Technical ma nual Page 3 of 72 ST0133 – A 02/09 SOLAR 4.8 D IMPLEX SOLAR ACCESSORIES 44 4.8.1 General desc ription 44 4.8.2 Corrugated flexible pi pe SOLFH10/15 45 4.8.3 Feed through tiles SOLFTT and SOLFTM 46 5 SYSTEM SIZING 47 5.1 R EQUIRED INFORMATION 47 5.2 S IZING GUIDE 47 6 PIPE WORK 49 6.1 T YPE OF PIPE WORK 49 6.2 P IPE WORK SIZING 49 6.3 ...
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Dimplex ST0133 - page 4
Technical ma nual Page 4 of 72 ST0133 – A 02/09 SOLAR 2 Before you start General Thank you for y our interes t in Dimp lex Solar pro ducts. We tr ust this manual will give you all the answers to th e questions th at you might have regarding t he products. Al- though every care was tak en to ensure t he content of thi s manual is cor rect we do no ...
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Dimplex ST0133 - page 5
Technical ma nual Page 5 of 72 ST0133 – A 02/09 SOLAR in Figure 2, na mely direct, r e flected and diffuse radiation. The various types of radiation can occur in is olation but in mos t cases the radiat ion incident on a solar therma l collec- tor is a combin ation thereo f. Figure 2 – Forms of incident solar radiation The solar radia tion avai ...
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Dimplex ST0133 - page 6
Technical ma nual Page 6 of 72 ST0133 – A 02/09 SOLAR Figure 3 – UK and Ireland irradiation map (ho rizontal surface) 3.1.2 Orientation The solar irradiance shown in Figure 3 is an average value incident on the horizontal surface. As mentioned above, depend ing on th e orientation and inclination of the solar collector the incid ent radiation o ...
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Dimplex ST0133 - page 7
Technical ma nual Page 7 of 72 ST0133 – A 02/09 SOLAR Figure 4 – Terminology to describ e location and orientation of solar thermal panel Figure 5 – Effect of orientation on incident radiation levels L a t i t u d e L o n g i t u d e S W N E Zenith Slope Azimuth S U N ...
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Dimplex ST0133 - page 8
Technical ma nual Page 8 of 72 ST0133 – A 02/09 SOLAR Although the location of the solar therma l system can be described us ing the longitude and latitude of the installa tion, in practi se the locali ty is being used to determine th e location of the system. The effect of t he orientation on the incide nt solar radiat ion levels can b e seen fr ...
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Dimplex ST0133 - page 9
Technical ma nual Page 9 of 72 ST0133 – A 02/09 SOLAR Each componen t in the solar ther mal system f ulfils a specifi c function which is described below: Solar ther mal collector The solar th ermal coll ector rece ives the so lar radiation , conver ts it into thermal e nergy and passes it on to the heat transfer fluid. Heat transfer fluid The he ...
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Dimplex ST0133 - page 10
Technical ma nual Page 10 of 72 ST0133 – A 02/09 SOLAR User The user varies from insta llation to installation but ha s a big influence on the operation of the solar thermal syste m. However, the system has all co mponents to ensure the provision of the comfort lev els that the user expects. 3.3.2 Function of a solar thermal system Bearing in min ...
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Dimplex ST0133 - page 11
Technical ma nual Page 11 of 72 ST0133 – A 02/09 SOLAR A more detailed description of the function of the individual compon ents follows in Chapter 4, Dimplex solar products. 4 Dimplex solar products The following sectio n details the produ ct features and releva nt technical da ta of the components of the Di mplex solar o ffering. Where applica ...
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Dimplex ST0133 - page 12
Technical ma nual Page 12 of 72 ST0133 – A 02/09 SOLAR () G t t a G t t a a m a m 2 2 1 0 − ⋅ − − ⋅ − = η η [1] Where: η [-] thermal coll ector efficienc y η 0 [-] optical col lector efficiency/z ero loss coefficie nt a 1 [W/m²/K] linear heat loss coefficien t a 2 [W/m²/K²] squared heat loss co efficient G [W/m²] global incide ...
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Dimplex ST0133 - page 13
Technical ma nual Page 13 of 72 ST0133 – A 02/09 SOLAR Figure 10 – Thermal efficiency curve Dimplex SOLC220 flat plate collector Figure 10 shows that the h igher the temperatur e difference between the colle ctor mod- ule and the ambient is, the lower is the effici ency of the product. D ue to the requ ired operating cond itions of var ious app ...
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Dimplex ST0133 - page 14
Technical ma nual Page 14 of 72 ST0133 – A 02/09 SOLAR - collector des ign - collector pressure drop - flow rate - required system outpu t Figure 11 shows the Dimplex SOLC22 0 collector with the pipe wo rk attached to the ab- sorber plate indicated. Figure 11 – Absorber pipe work Dimplex SOLC220 collector From Figure 11 it can be seen th at the ...
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Dimplex ST0133 - page 15
Technical ma nual Page 15 of 72 ST0133 – A 02/09 SOLAR The flow and return of th e collector are con nected using a 800mm long insu lated corru- gated stainless ste el flexible hose (9.1). The inter connection s consist of sho rt flexible bellows (10.1). The r emaining connec tions ar e to be blanked off using the b lanking pieces (9.2). The conn ...
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Dimplex ST0133 - page 16
Technical ma nual Page 16 of 72 ST0133 – A 02/09 SOLAR An overall vie w of possible co llector conne ctions is g iven in Figur e 14 detailing a lso the pressure drop at nominal low-flow and high-flow flow rates. Figure 14 – Collector connection options, fl ow rates and pressure drop 2 3 4 5 6 7 No. of coll ectors 1 8 9 10 Flow rate [l/min] Pres ...
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Dimplex ST0133 - page 17
Technical ma nual Page 17 of 72 ST0133 – A 02/09 SOLAR Although on ly the vertical collector o rientation i s shown, the same princip les can be applied to the horizontal collector install ati on. The same applies fo r the positioning of the flow and return, it can be changed from left to right hand side as lo ng as the se nsor (indicated by dot) ...
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Dimplex ST0133 - page 18
Technical ma nual Page 18 of 72 ST0133 – A 02/09 SOLAR On roof kits The on roof kits come as basic and extensio n kit. The ba sic kit has to be ordered for each first colle ctor of a collector field, the exten sion kit for each additio nal collector in the installa tion. Figure 17 – On roof mounting options As detailed in Fig ure 16 the on roof ...
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Dimplex ST0133 - page 19
Technical ma nual Page 19 of 72 ST0133 – A 02/09 SOLAR Figure 18 – Dimplex SOLC220 integrated roof kit without and with flashing ki t fitted Free standing kits The free standing kit is designed for the vert ical installation of the solar coll ector on even ground with a slope of 4 5° to 60°. For lower slo ping angles sh orted support struts c ...
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Dimplex ST0133 - page 20
Technical ma nual Page 20 of 72 ST0133 – A 02/09 SOLAR Figure 19 – Free standing kit row distance calculation details In addition to the row distanc e the fixation of the free sta nding kit to the moun ting sur- face has to be cons idered carefully. Du e to the shap e of the flat plate c ollector consid- erable wind forces can a ct on the free ...
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Dimplex ST0133 - page 21
Technical ma nual Page 21 of 72 ST0133 – A 02/09 SOLAR col col spt spt tot m n m n m ⋅ − ⋅ = [4] Where: m tot [kg] minimu m mass required n spt [-] number of supports in inst allation m spt [kg] mass for each support (see Figure 20) n col [-] number of coll ectors in instal lation m col [kg] mass of collector (SOLC220 = 34.5 kg) Figure 20 ? ...
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Dimplex ST0133 - page 22
Technical ma nual Page 22 of 72 ST0133 – A 02/09 SOLAR 4.1.4 Space requirement Depending on the mounting me thod the fo ot print requir ed by the solar co llector inst al- lation varies. The dimension f o r the on roof and free standing moun ting kits do not in- clude the space requir ed to fit the connectio n pipes as these vary depending on the ...
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Dimplex ST0133 - page 23
Technical ma nual Page 23 of 72 ST0133 – A 02/09 SOLAR Figure 24 – Space requirement Dimplex SOLC220 free standing installation ...
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Dimplex ST0133 - page 24
Technical ma nual Page 24 of 72 ST0133 – A 02/09 SOLAR 4.1.4 Technical data Figure 25 sum marises the key techni cal data of the D implex SOLC220 solar thermal collector. Figure 25 – Technical data Dimplex SOLC220 collector 4.2 Dimplex solar control uni t SOLCU1/2/3 4.2.1 General description Dimplex solar offer a range of solar control uni ts w ...
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Dimplex ST0133 - page 25
Technical ma nual Page 25 of 72 ST0133 – A 02/09 SOLAR A detailed description of the in dividual operation and function of the control units can b e found in the respective installa tion and operating instructions. 4.2.2 Temperature sensors All Dimplex solar control uni ts come with three PT1000 tempe rature sensors which can be extended as requi ...
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Dimplex ST0133 - page 26
Technical ma nual Page 26 of 72 ST0133 – A 02/09 SOLAR 4.2.3 Technical data The main feat ures of the Di mplex solar co ntrol units SOLCU1 /2/3 are summar ised in Figure 28. Figure 28 – Technical data overall view Dimplex solar control units SOLCU1/2/3 4.3 Dimplex solar pump u nit SOLPU1/2 4.3.1 General description The Dimplex solar pu mp units ...
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Dimplex ST0133 - page 27
Technical ma nual Page 27 of 72 ST0133 – A 02/09 SOLAR Figure 29 – Components of Dimplex solar pu mp unit SOLPU1 and SOLPU2 Pump unit connections (1, 2, 10 and 13 ) The SOLP U1 pump unit connecti ons can be utilised in thre e different ways: - 3/4” flat seal a t the end of corrugated sta inless steel pip e - 3/4”F x 22mm st raight connecti ...
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Dimplex ST0133 - page 28
Technical ma nual Page 28 of 72 ST0133 – A 02/09 SOLAR flexible hos e SOLFH10/15 is DN16 a nd only prov ides ¾” conne ctions. Sh ould this prod - uct be applied to th e SOLPU2 a 1” to ¾” reducer has to be provided with suffici ent seal- ing surface for the flat seal to sit agains t. The 1”F x 22mm or 1”F x 28mm strai ght con- nection ...
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Dimplex ST0133 - page 29
Technical ma nual Page 29 of 72 ST0133 – A 02/09 SOLAR The centre valve of the flush and fil l point is being used to adjust the flow rate if re- quired. Figure 30 - Pump characteristics a nd pump unit pressure drop SOLPU1 and SOLPU2 Expansion vessel fixing kit (8) The expansion vessel f ixing kit is not par t of th e s co pe o f d eli ve ry of t ...
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Dimplex ST0133 - page 30
Technical ma nual Page 30 of 72 ST0133 – A 02/09 SOLAR Insulation cover ( 12) The insulation cover avoids unn ecessary he at loss from the so lar loop and gives the pump unit its aestheti cally pleasing appearance . 4.3.2 Pump connection The connectio n of the circulation pump to the control un it has to be considered in its application for: - op ...
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Dimplex ST0133 - page 31
Technical ma nual Page 31 of 72 ST0133 – A 02/09 SOLAR Should the above co nditions not be given , the motorised two port valve has to be in - stalled in series t o the twin thermostat. 4.3.3 Technical data Figure 32 – Technical data Dimplex solar pum p unit SOLPU1 and SOLPU2 ...
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Dimplex ST0133 - page 32
Technical ma nual Page 32 of 72 ST0133 – A 02/09 SOLAR 4.4 Dimplex solar expansion vessels SOLE V 4.4.1 General description Dimplex solar offer an extensive range of expansion vessels from 18 to 80 litres . All expansion ves sels are partic ularly suited f or the applica tion in solar thermal sy stems with a high temperature resistan t membrane w ...
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Dimplex ST0133 - page 33
Technical ma nual Page 33 of 72 ST0133 – A 02/09 SOLAR The expansion volume of th e system Vep can be ca lculated using Equa tion 7. β ⋅ = sys ep V V [7] Where: V ep [l] system expansion volum e V sys [l] total system v olume β [-] heat tr ansfer medium expansion coeffic ient (0.00085) The pressure relief valve pre ssure p rv can a s first ap ...
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Dimplex ST0133 - page 34
Technical ma nual Page 34 of 72 ST0133 – A 02/09 SOLAR EV pc EV pc mp V V V p p − ⋅ = [10] Where: p mp [bar] membran e pressure p pc [bar] cold fill pressure V EV [l] expansion vessel volume V pc [l] pre-charge volume The expansion vessel m embrane pressure p mp has to be ad justed before the system is being filled and pressurised. Once the t ...
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Dimplex ST0133 - page 35
Technical ma nual Page 35 of 72 ST0133 – A 02/09 SOLAR 4.4.3 Technical data Figure 35 – Technical data Dimplex SOLEV expansion vessels 4.5 Dimplex expansion vessel fixing kit SOLVK1 4.5.1 General description The expansion v essel fixing kit SOLVK1 aid s with the installa tion, main tenance and de- commissioning of the so lar thermal system . Th ...
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Dimplex ST0133 - page 36
Technical ma nual Page 36 of 72 ST0133 – A 02/09 SOLAR It is not reco mmended to fi t vessels larg er than 24 li tres using the ex pansion vess el fixing kit as fa ulty vessels g ain considerab ly in weight a nd the wall bracket wo uld not support the additional weigh t. The 500mm corrugat ed stainless st eel hose all o ws the expansion vess el t ...
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Dimplex ST0133 - page 37
Technical ma nual Page 37 of 72 ST0133 – A 02/09 SOLAR 4.6.2 Technical data Figure 38 – Technical data Dimplex solar heat tran sfer medium SOLHT20 4.7 Dimplex solar c ylinders SCx 4.7.1 General description Dimplex offer a range of direct electric and indirect heated solar cylinders from 175 lit re to 305 litre overall volume. An overall view of ...
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Dimplex ST0133 - page 38
Technical ma nual Page 38 of 72 ST0133 – A 02/09 SOLAR Figure 39 – Overall view Dimplex solar SCx unvented stainless st eel cylinders SCx175/215/255/305sd SCx175/215/255/305si 18 01 02 03 04 05 07 08 09 10 11 12 13 14 15 16 17 18 01 02 03 04 05 07 12 13 14 15 16 17 06 ...
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Dimplex ST0133 - page 39
Technical ma nual Page 39 of 72 ST0133 – A 02/09 SOLAR Figure 40 – Key features Dimplex solar cylinders SCx 4.7.2 Wiring integration Dimplex solar cylinders SCx There are several ways to integrate the Di mp lex solar cylinders in to an existing or a new central heating sys tem. The principle plu mbing and wiring schematics are show n for two sy ...
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Dimplex ST0133 - page 40
Technical ma nual Page 40 of 72 ST0133 – A 02/09 SOLAR Figure 41 – Auxiliary loop integration 2x motorised two port valve ...
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Dimplex ST0133 - page 41
Technical ma nual Page 41 of 72 ST0133 – A 02/09 SOLAR Figure 42 - Auxiliary loop integration 1x motorised two port valve and mid-position valve ...
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Dimplex ST0133 - page 42
Technical ma nual Page 42 of 72 ST0133 – A 02/09 SOLAR The integration o f the solar therma l control and pump un it independent fr om manufac- turer nomenclature is shown in Figure 43. Figure 43 – Solar loop integration 4.7.3 Hydraulic integration Dimplex solar cylinders SCx Should the cylinder range of 175 to 305 litres no t be sufficient, an ...
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Dimplex ST0133 - page 43
Technical ma nual Page 43 of 72 ST0133 – A 02/09 SOLAR 4.7.4 Technical data Figure 44 – Technical data Dimplex solar cylinder S Cx A L K M D/N E F O J B C P I G H ...
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Dimplex ST0133 - page 44
Technical ma nual Page 44 of 72 ST0133 – A 02/09 SOLAR Figure 45 – Pressure drop Dimplex solar SCx cylinder coils 4.8 Dimplex solar accessories 4.8.1 General description To aid in the i nstallatio n, commiss ioning, ma intenance and the r ealisation of more com - plex systems Dimplex offer a range of ac cessories as summarised i n Figure 46. Fi ...
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Dimplex ST0133 - page 45
Technical ma nual Page 45 of 72 ST0133 – A 02/09 SOLAR 4.8.2 Corrugated flexible pipe SOLFH 10/15 The Dimplex solar flex ible corrugated sta inless steel pip e includes: - high temperat ure and weat her resistant insulati on - integrated 2 core sen sor cable - wall fixings - connection fi ttings from the coll ector to the pump uni t and from the ...
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Dimplex ST0133 - page 46
Technical ma nual Page 46 of 72 ST0133 – A 02/09 SOLAR 4.8.3 Feed through tiles SOLFTT and S OLFTM The Dimplex solar feed t hrough tile s are suit able for cor rugated an d plain tiles, slate roof coverings and sheet met al coverings depending on the type chosen: - SOLFTT: corrugated and plai n tile, slate roof covering - SOLFTM: sheet metal roof ...
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Dimplex ST0133 - page 47
Technical ma nual Page 47 of 72 ST0133 – A 02/09 SOLAR 5 System sizing 5.1 Required information The sizing of solar thermal s ystems depends on a numb er of factors which require th e use of solar simulation software to allow re liable so lar fraction predictio ns. The info rma- tion required to reli ably specify a domestic solar thermal hot wate ...
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Dimplex ST0133 - page 48
Technical ma nual Page 48 of 72 ST0133 – A 02/09 SOLAR Figure 50 – Dimplex solar initial sizing guide ...
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Dimplex ST0133 - page 49
Technical ma nual Page 49 of 72 ST0133 – A 02/09 SOLAR For an initial a ssessment the following sizin g guide (Figure 5 0) can be used to discus s the feasibil ity of solar. It is however recommended, following the completion of the siz- ing guide t o complete the On Si te Questio nnaire as shown in Figure 49 and Appendix 11.1 to valida te the in ...
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Dimplex ST0133 - page 50
Technical ma nual Page 50 of 72 ST0133 – A 02/09 SOLAR Figure 51 – Suitable pipe diamete rs for various collector field sizes 6.3 Pipe work pressure drop To be able to determine the suitabil ity of the circulation p ump it is important to be able to calculate the pressure drop of the pipe work. Figure 52 summarises the approxima te pressure dro ...
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Dimplex ST0133 - page 51
Technical ma nual Page 51 of 72 ST0133 – A 02/09 SOLAR 6.5 Pipe work fixation When fixing the pip e work to the building structure a number of po ints should be con- sidered before choosing the fixation method: - temperature of liqu id carried in pipes - sound transfer from pipe work into building structure - thermal ex pansion and con traction o ...
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Dimplex ST0133 - page 52
Technical ma nual Page 52 of 72 ST0133 – A 02/09 SOLAR 7 Commissioning The commissio ning of a Dimplex solar therm al system is a simple pr ocedure as outl ined in Figure 55. Figure 55 – Dimplex commissioning procedure Part 1 ...
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Dimplex ST0133 - page 53
Technical ma nual Page 53 of 72 ST0133 – A 02/09 SOLAR Figure 55 – Dimplex commissioning procedure Part 2 8 Operation 8.1 Control unit In general the o peration of the Dimplex solar thermal sy stem is fully automatic and does not require any user intervention to ensure its efficient , safe and reliable operation. However, the solar control unit ...
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Dimplex ST0133 - page 54
Technical ma nual Page 54 of 72 ST0133 – A 02/09 SOLAR - holiday and frost pr otection functio n - variable speed control of circulating pump Figure 56 – Display information and me nu structure SOLCU1 ...
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Dimplex ST0133 - page 55
Technical ma nual Page 55 of 72 ST0133 – A 02/09 SOLAR 8.2 Pump unit As for the whole syste m no manual interve ntion is requir ed on the pump uni t when th e system is operating norma lly. However, the pump unit offers some useful information detailing the operat ional status of th e solar system (see Figure 57): A: current flow rate: to be seen ...
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Dimplex ST0133 - page 56
Technical ma nual Page 56 of 72 ST0133 – A 02/09 SOLAR Check content discharge vessel Should any heat transfer medium be deposi ted in the discharge vessel which wa s not there from the beginning, the ca use i s to be established . Check roof f eed-through for leaks The points at which the pipe work penet r ates the primary and secondary protecti ...
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Dimplex ST0133 - page 57
Technical ma nual Page 57 of 72 ST0133 – A 02/09 SOLAR Figure 58 – Overall view Dimplex solar maintenance procedu re ...
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Dimplex ST0133 - page 58
Technical ma nual Page 58 of 72 ST0133 – A 02/09 SOLAR 10 Product and kit listings The Dimplex solar product range is offered as kit or as individual compo nents. The fol- lowing listings deta il all the k its and the ind ividual compon ents available. 10.1 Dimplex solar kits The Dimplex s olar kits are pa ckaged in such a way that all the requir ...
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Dimplex ST0133 - page 59
Technical ma nual Page 59 of 72 ST0133 – A 02/09 SOLAR Figure 60 – Dimplex solar compon ents overall view ...
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Dimplex ST0133 - page 60
Technical ma nual Page 60 of 72 ST0133 – A 02/09 SOLAR 11 Dimplex literature structure Dimplex solar offers a range of literature to pr ovide releva nt information at all stages of the product life cyc le from planning and desi gn , installa tion and ma intenance to op era- tion and troubleshooting. Figure 61 summari ses the availa ble documents ...
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Dimplex ST0133 - page 61
Technical ma nual Page 61 of 72 ST0133 – A 02/09 SOLAR 12 Appendix 12.1 On site question naire ...
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Dimplex ST0133 - page 62
Technical ma nual Page 62 of 72 ST0133 – A 02/09 SOLAR 12.2 On site inspection ...
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Dimplex ST0133 - page 63
Technical ma nual Page 63 of 72 ST0133 – A 02/09 SOLAR ...
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Dimplex ST0133 - page 64
Technical ma nual Page 64 of 72 ST0133 – A 02/09 SOLAR ...
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Dimplex ST0133 - page 65
Technical ma nual Page 65 of 72 ST0133 – A 02/09 SOLAR 12.3 Dimplex solar system direc t – overall view ...
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Dimplex ST0133 - page 66
Technical ma nual Page 66 of 72 ST0133 – A 02/09 SOLAR 12.4 Dimplex s olar system indirect – overall view ...
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Dimplex ST0133 - page 67
Technical ma nual Page 67 of 72 ST0133 – A 02/09 SOLAR 12.5 Example Dimplex sola r si mulation report ...
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Dimplex ST0133 - page 68
Technical ma nual Page 68 of 72 ST0133 – A 02/09 SOLAR ...
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Dimplex ST0133 - page 69
Technical ma nual Page 69 of 72 ST0133 – A 02/09 SOLAR ...
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Dimplex ST0133 - page 70
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Dimplex ST0133 - page 71
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Dimplex ST0133 - page 72
Technical ma nual Page 72 of 72 ST0133 – A 02/09 SOLAR 13 Notes and sketches ...
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