Related Manuals for Dimplex DIMPLEX SOLAR ST0133
Summary of Contents for Dimplex DIMPLEX SOLAR ST0133
- Page 1 SOLAR Technical Manual Complete guide to Dimplex Solar Page 1 of 72 ST0133 – A 02/09...
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Page 2: Table Of Contents
4.6 D IMPLEX HEAT TRANSFER MEDIUM 4.6.1 General description 4.6.2 Technical data 4.7 D IMPLEX SOLAR CYLINDERS 4.7.1 General description 4.7.2 Wiring integration Dimplex solar cylinders SCx 4.7.3 Hydraulic integration Dimplex solar cylinders SCx 4.7.4 Technical data SOLC220 SOLCU1/2/3 SOLPU1/2 SOLEV... - Page 3 UMP UNIT 9 MAINTENANCE 10 PRODUCT AND KIT LISTINGS 10.1 D IMPLEX SOLAR KITS 10.2 D IMPLEX SOLAR COMPONENTS 11 DIMPLEX LITERATURE STRUCTURE 12 APPENDIX 12.1 O N SITE QUESTIONNAIRE 12.2 O N SITE INSPECTION 12.3 D IMPLEX SOLAR SYSTEM DIRECT 12.4 D...
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Page 4: Before You Start
2 Before you start General Thank you for your interest in Dimplex Solar products. We trust this manual will give you all the answers to the questions that you might have regarding the products. Al- though every care was taken to ensure the content of this manual is correct we do not accept any liability for claims resulting directly or indirectly from the application of the information contained in this manual. - Page 5 Technical manual in Figure 2, namely direct, reflected and diffuse radiation. The various types of radiation can occur in isolation but in most cases the radiation incident on a solar thermal collec- tor is a combination thereof. The solar radiation available outside the earth’s atmosphere, the so called extraterres- trial radiation, has a density of 1367 W/m².
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Page 6: Orientation
Technical manual SOLAR Figure 3 – UK and Ireland irradiation map (horizontal surface) 3.1.2 Orientation The solar irradiance shown in Figure 3 is an average value incident on the horizontal surface. As mentioned above, depending on the orientation and inclination of the solar collector the incident radiation onto the collector surface can vary although it might be in the same location. - Page 7 Technical manual SOLAR Zenith S U N Slope Azimuth Figure 4 – Terminology to describe location and orientation of solar thermal panel Figure 5 – Effect of orientation on incident radiation levels Page 7 of 72 ST0133 – A 02/09...
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Page 8: Solar Thermal System
Technical manual Although the location of the solar thermal system can be described using the longitude and latitude of the installation, in practise the locality is being used to determine the location of the system. The effect of the orientation on the incident solar radiation levels can be seen from Fig- ure 5. - Page 9 Technical manual SOLAR Each component in the solar thermal system fulfils a specific function which is described below: Solar thermal collector The solar thermal collector receives the solar radiation, converts it into thermal energy and passes it on to the heat transfer fluid. Heat transfer fluid The heat transfer fluid circulates through the solar collector, the pipe work and the heat exchanger.
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Page 10: Function Of A Solar Thermal System
Technical manual SOLAR User The user varies from installation to installation but has a big influence on the operation of the solar thermal system. However, the system has all components to ensure the provision of the comfort levels that the user expects. 3.3.2 Function of a solar thermal system Bearing in mind the function of the individual components, the function of a solar ther- mal system is in principle very simple. -
Page 11: Dimplex Solar Products
4.1 Dimplex solar collector SOLC220 4.1.1 General description The Dimplex solar collector SOLC220 is a solar thermal flat plate collector. A cross sec- tional drawing of the Dimplex SOLC220 is given in Figure 8 detailing the individual col- lector components. - Page 12 Applying equation 1 to the Dimplex SOLC220 collector the graph shown in Figure 10 can be de- rived.
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Page 13: Hydraulic Collector Connection
Technical manual SOLAR Figure 10 – Thermal efficiency curve Dimplex SOLC220 flat plate collector Figure 10 shows that the higher the temperature difference between the collector mod- ule and the ambient is, the lower is the efficiency of the product. Due to the required operating conditions of various applications (see Figure 1) the collector has to operate at varying efficiencies. - Page 14 - collector pressure drop - flow rate - required system output Figure 11 shows the Dimplex SOLC220 collector with the pipe work attached to the ab- sorber plate indicated. Figure 11 – Absorber pipe work Dimplex SOLC220 collector From Figure 11 it can be seen that the collector has 4 connections which can be used to connect the flow and return pipes of the installation and to connect the collectors be- tween each other.
- Page 15 An overall view of the application of the individual connection components is given in Figure 13 (two collectors, flow left hand side, return right hand side). Note: the sensor pockets on both collectors face outwards. Figure 13 – Typical connection of Dimplex SOLC220 collector Page 15 of 72 ST0133 – A 02/09...
- Page 16 Technical manual An overall view of possible collector connections is given in Figure 14 detailing also the pressure drop at nominal low-flow and high-flow flow rates. No. of collectors Figure 14 – Collector connection options, flow rates and pressure drop SOLAR Pres.
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Page 17: Roof Fixing Kits
An overall view of the installation options is shown in Figure 15. Figure 15 – Dimplex Solar collector installation options Dimplex offers a wide range of roof fixing kits for the installation of the SOLC220 solar collector. The available roof fixing kits are summarised in Figure 16. - Page 18 Technical manual On roof kits The on roof kits come as basic and extension kit. The basic kit has to be ordered for each first collector of a collector field, the extension kit for each additional collector in the installation. Corrugated tile Slate...
- Page 19 Technical manual Integrated roof kit without flashings fitted Figure 18 – Dimplex SOLC220 integrated roof kit without and with flashing kit fitted Free standing kits The free standing kit is designed for the vertical installation of the solar collector on even ground with a slope of 45°...
- Page 20 Note: the stated parameters are only valid for the wind speeds stated in Figure 20. It is the responsibility of the installer/mechanical engineer to validate these figures for the individual installation. Dimplex does not accept any liability for damage to material, buildings or persons resulting from free standing installations not being sufficiently sup- ported.
- Page 21 In some cases it might be required to prepare the load baring structure in advance to accept the fittings of the Dimplex solar free standing kit. Figure 21 details the support feet (4x for each collector) and the free standing bottom bar (2x for each collector).
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Page 22: Space Requirement
The dimensions provided for the integrated roof kits include the pipe work as the pipe feed through is part of the integrated roof kit. Figure 22 – Space requirement Dimplex SOLC220 on roof installation Figure 23 – Space requirement Dimplex SOLC200 in roof installation Page 22 of 72 ST0133 –... - Page 23 Technical manual SOLAR Figure 24 – Space requirement Dimplex SOLC220 free standing installation Page 23 of 72 ST0133 – A 02/09...
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Page 24: Technical Data
4.2 Dimplex solar control unit SOLCU1/2/3 4.2.1 General description Dimplex solar offer a range of solar control units with differing input and output options and functionality. All control units operate on the basic principles described in chapter 3.3.2. Figure 26 shows the SOLCU1 control unit detailing the main components which are common to all Dimplex solar control units. -
Page 25: Temperature Sensors
4.2.2 Temperature sensors All Dimplex solar control units come with three PT1000 temperature sensors which can be extended as required. The polarity of the sensor contacts is not important. The length of the sensors delivered with each control unit is:... -
Page 26: Technical Data
4.3 Dimplex solar pump unit SOLPU1/2 4.3.1 General description The Dimplex solar pump units SOLPU1 and SOLPU2 comprise a number of features aid- ing in the installation, commissioning, operation and maintenance of the solar thermal installation. The components of the pump unit are depicted in Figure 29 followed by a brief description of their function. - Page 27 The 15mm reducing set is included in the delivery of the SOLPU1 pump unit, the ¾” flat seal is part of the delivery of the Dimplex solar flexible hose SOLFH10/15. The ¾”F x 22mm straight connection has to be provided by the installer.
- Page 28 Figure 30 along side the pressure drop of each pump unit. Flush and fill point (7) The flush and fill point allows the connection of the Dimplex solar flush and fill pump SOLFFP110/240 for the flushing and filling of the solar loop. Should a hand pump being used it is also to be connected at this point but not all three valves are being made use of during the filling process.
- Page 29 The expansion vessel fixing kit is not part of the scope of delivery of the pump units but is part of the standard Dimplex solar kits and is suitable for expansion vessels of up to 24 litre contents. It simplifies the expansion vessel installation and reduces the mainte- nance effort.
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Page 30: Pump Connection
Technical manual Insulation cover (12) The insulation cover avoids unnecessary heat loss from the solar loop and gives the pump unit its aesthetically pleasing appearance. 4.3.2 Pump connection The connection of the circulation pump to the control unit has to be considered in its application for: - open vented hot water systems - closed unvented hot water systems... -
Page 31: Technical Data
Should the above conditions not be given, the motorised two port valve has to be in- stalled in series to the twin thermostat. 4.3.3 Technical data Figure 32 – Technical data Dimplex solar pump unit SOLPU1 and SOLPU2 Page 31 of 72 ST0133 – A 02/09... -
Page 32: Dimplex Solar Expansion Vessels Solev
4.4 Dimplex solar expansion vessels SOLEV 4.4.1 General description Dimplex solar offer an extensive range of expansion vessels from 18 to 80 litres. All expansion vessels are particularly suited for the application in solar thermal systems with a high temperature resistant membrane which has also excellent diffusion barrier characteristics in conjunction with the heat transfer medium used in solar thermal sys- tems. - Page 33 Technical manual The expansion volume of the system Vep can be calculated using Equation 7. β ⋅ Where: β The pressure relief valve pressure p ever, to allow for some tolerance it is recommended to calculate the pressure relief valve pressure p in accordance with Equation 8.
- Page 34 Technical manual − ⋅ Where: [bar] [bar] The expansion vessel membrane pressure p being filled and pressurised. Once the theoretical expansion vessel volume has been calculated, the next larger available vessel is to be chosen. A sizing guide of the expansion vessel under the stated conditions is given in Figure 34. Please note that the calculation should be carried out in the case that the assumptions shown in Figure 34 do not apply.
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Page 35: Technical Data
- expansion vessel wall bracket (suitable for vessels of up to 440mm) - 500mm corrugated stainless steel hose with ¾” flat seal connections - quick fit connection Figure 36 – Components Dimplex solar expansion vessel fixing kit SOLVK1 Page 35 of 72 ST0133 – A 02/09... -
Page 36: Technical Data
Dimplex provide a test kit, SOLHTTK, to monitor the condition of the medium over the course of its life. Page 36 of 72... -
Page 37: Technical Data
4.7 Dimplex solar cylinders SCx 4.7.1 General description Dimplex offer a range of direct electric and indirect heated solar cylinders from 175 litre to 305 litre overall volume. An overall view of the products is given in Figure 39 and a summary of the key features is given in Figure 40. - Page 38 Technical manual SOLAR SCx175/215/255/305sd SCx175/215/255/305si Figure 39 – Overall view Dimplex solar SCx unvented stainless steel cylinders Page 38 of 72 ST0133 – A 02/09...
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Page 39: Wiring Integration Dimplex Solar Cylinders Scx
Figure 40 – Key features Dimplex solar cylinders SCx 4.7.2 Wiring integration Dimplex solar cylinders SCx There are several ways to integrate the Dimplex solar cylinders into an existing or a new central heating system. The principle plumbing and wiring schematics are shown for two systems in Figures 41 and 42. - Page 40 Technical manual SOLAR Figure 41 – Auxiliary loop integration 2x motorised two port valve Page 40 of 72 ST0133 – A 02/09...
- Page 41 Technical manual SOLAR Figure 42 - Auxiliary loop integration 1x motorised two port valve and mid-position valve Page 41 of 72 ST0133 – A 02/09...
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Page 42: Hydraulic Integration Dimplex Solar Cylinders Scx
The integration of the solar thermal control and pump unit independent from manufac- turer nomenclature is shown in Figure 43. 4.7.3 Hydraulic integration Dimplex solar cylinders SCx Should the cylinder range of 175 to 305 litres not be sufficient, any number of cylinders can be connected in parallel or in series to achieve higher storage volumes. -
Page 43: Technical Data
Technical manual SOLAR 4.7.4 Technical data Figure 44 – Technical data Dimplex solar cylinder SCx Page 43 of 72 ST0133 – A 02/09... -
Page 44: Dimplex Solar Accessories
4.8 Dimplex solar accessories 4.8.1 General description To aid in the installation, commissioning, maintenance and the realisation of more com- plex systems Dimplex offer a range of accessories as summarised in Figure 46. Figure 46 – Dimplex solar accessories Page 44 of 72... -
Page 45: Corrugated Flexible Pipe Solfh10/15
Technical manual SOLAR 4.8.2 Corrugated flexible pipe SOLFH10/15 The Dimplex solar flexible corrugated stainless steel pipe includes: - high temperature and weather resistant insulation - integrated 2 core sensor cable - wall fixings - connection fittings from the collector to the pump unit and from the pump unit to the cylinder - 10m or 15m length. -
Page 46: Feed Through Tiles Solftt And Solftm
SOLAR 4.8.3 Feed through tiles SOLFTT and SOLFTM The Dimplex solar feed through tiles are suitable for corrugated and plain tiles, slate roof coverings and sheet metal coverings depending on the type chosen: - SOLFTT: corrugated and plain tile, slate roof covering - SOLFTM: sheet metal roof covering, plain or corrugated For each pipe feed through one tile of the appropriate type is required. -
Page 47: System Sizing
Technical manual SOLAR 5 System sizing 5.1 Required information The sizing of solar thermal systems depends on a number of factors which require the use of solar simulation software to allow reliable solar fraction predictions. The informa- tion required to reliably specify a domestic solar thermal hot water system is shown in Figure 49. - Page 48 Technical manual SOLAR Figure 50 – Dimplex solar initial sizing guide Page 48 of 72 ST0133 – A 02/09...
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Page 49: Pipe Work
Figure 5) and the actual hot water demand. 6 Pipe work For installation where the Dimplex solar corrugated stainless hose SOLFH10/15 is not suitable, it is required to specify the correct pipe work for the installation. 6.1 Type of pipe work Only full metal pipe work must be used in solar thermal installations. -
Page 50: Pipe Work Pressure Drop
Technical manual SOLAR Figure 51 – Suitable pipe diameters for various collector field sizes 6.3 Pipe work pressure drop To be able to determine the suitability of the circulation pump it is important to be able to calculate the pressure drop of the pipe work. Figure 52 summarises the approximate pressure drop Δ... -
Page 51: Pipe Work Fixation
- the insulation should be at least 100% of the inner pipe diameter (e.g. a 22mm pipe should be insulated with at least 19mm of insulation). The Dimplex solar connection hoses which are delivered with the various roof fixing kits and the 10m and 15m flexible pipes SOLFH10/15 are insulated with the appropriate material. -
Page 52: Commissioning
Technical manual SOLAR 7 Commissioning The commissioning of a Dimplex solar thermal system is a simple procedure as outlined in Figure 55. Figure 55 – Dimplex commissioning procedure Part 1 Page 52 of 72 ST0133 – A 02/09... -
Page 53: Operation
8 Operation 8.1 Control unit In general the operation of the Dimplex solar thermal system is fully automatic and does not require any user intervention to ensure its efficient, safe and reliable operation. However, the solar control unit offers a number of useful information that might be of interest to the user. - Page 54 Technical manual SOLAR - holiday and frost protection function - variable speed control of circulating pump Figure 56 – Display information and menu structure SOLCU1 Page 54 of 72 ST0133 – A 02/09...
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Page 55: Pump Unit
Figure 57 – Operational information provided by Dimplex solar pump unit SOLPU1/2 9 Maintenance The maintenance effort for the Dimplex solar system is minimal and can ideally be exe- cuted when carrying out the mandatory checks on the unvented hot water installation. - Page 56 Technical manual SOLAR Check content discharge vessel Should any heat transfer medium be deposited in the discharge vessel which was not there from the beginning, the cause is to be established. Check roof feed-through for leaks The points at which the pipe work penetrates the primary and secondary protection layer are to be inspected if accessible.
- Page 57 Technical manual SOLAR Figure 58 – Overall view Dimplex solar maintenance procedure Page 57 of 72 ST0133 – A 02/09...
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Page 58: Product And Kit Listings
10.1 Dimplex solar kits The Dimplex solar kits are packaged in such a way that all the required components are contained in the kit. Optional components are available but are not contained in the standard kits. - Page 59 Technical manual SOLAR Figure 60 – Dimplex solar components overall view Page 59 of 72 ST0133 – A 02/09...
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Page 60: Dimplex Literature Structure
Technical manual 11 Dimplex literature structure Dimplex solar offers a range of literature to provide relevant information at all stages of the product life cycle from planning and design, installation and maintenance to opera- tion and troubleshooting. Figure 61 summarises the available documents and their rele- vance at the various stages of the product’s application. -
Page 61: Appendix
Technical manual SOLAR 12 Appendix 12.1 On site questionnaire Page 61 of 72 ST0133 – A 02/09... -
Page 62: On Site Inspection
Technical manual SOLAR 12.2 On site inspection Page 62 of 72 ST0133 – A 02/09... - Page 63 Technical manual SOLAR Page 63 of 72 ST0133 – A 02/09...
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Page 65: Dimplex Solar System Direct - Overall View
Technical manual SOLAR 12.3 Dimplex solar system direct – overall view Page 65 of 72 ST0133 – A 02/09... -
Page 66: Dimplex Solar System Indirect - Overall View
Technical manual SOLAR 12.4 Dimplex solar system indirect – overall view Page 66 of 72 ST0133 – A 02/09... -
Page 67: Example Dimplex Solar Simulation Report
Technical manual SOLAR 12.5 Example Dimplex solar simulation report Page 67 of 72 ST0133 – A 02/09... - Page 68 Technical manual SOLAR Page 68 of 72 ST0133 – A 02/09...
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Page 72: Notes And Sketches
Technical manual SOLAR 13 Notes and sketches Page 72 of 72 ST0133 – A 02/09...