Dimplex ST0133 technical manual Type of pipe work, Pipe work sizing

Page 49

Technical manual

SOLAR

For an initial assessment the following sizing guide (Figure 50) can be used to discuss the feasibility of solar. It is however recommended, following the completion of the siz- ing guide to complete the On Site Questionnaire as shown in Figure 49 and Appendix 11.1 to validate the initial sizing with a detailed solar fraction simulation.

The solar fraction achieved using the sizing guide shown in Figure 50 will vary depend- ing on the location of the installation within the UK (see Figure 3), its orientation (see 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. Plastic or compos- ite materials are not suitable due to the high temperatures that can occur in solar ther- mal installations and the compatibility with the heat transfer medium.

Due to its ease of use and the readily available fittings it is recommended to use copper as pipe material. Steel pipe work can also be used when it is ensured that it always terminates into a brass fitting before getting in contact with copper.

The joints of the pipe work must be carried out in such a way that they are suitable for the pressure and the temperatures present in the solar thermal system. For copper pipe work it is recommended to work with brass compression fittings with brass olives.

6.2 Pipe work sizing

The size of the pipe work depends primarily on the flow rate circulating through the pipe work. As discussed in Chapter 4.1.2 each collector requires a specified flow rate to en- sure optimum operation and efficiency.

Equation 11 can be used to calculate the minimum required inner pipe diameter ID_min in mm:

IDmin = 4.6 ⋅

V&

 

[9]

w

 

Where:

IDmin

[mm]

minimum required pipe diameter

 

4.6

[-]

unit conversion factor

 

V

[l/min]

flow rate through pipe

 

w

[m/s]

flow velocity through pipe

Due to the higher viscosity of the heat transfer medium in comparison to water the flow velocity w should not exceed 0.5 to 0.7m/s. A number of typical pipe diameters for various collector field sizes are given in Figure 51 with a flow velocity of 0.5 and 0.7m/s.

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ST0133 – A 02/09

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Contents Solar Contents Solar Solar thermal Before you startGeneral IntroductionStrong UK and Ireland irradiation map horizontal surface OrientationSolar Components of a solar thermal system Solar thermal systemSolar thermal collector Pump and safety equipmentHeat transfer fluid Pipe workUser Function of a solar thermal systemDimplex solar collector SOLC220 Dimplex solar productsGeneral description = η − a Hydraulic collector connection Absorber pipe work Dimplex SOLC220 collector Connection components Dimplex SOLC220 collector 330 325340 Roof fixing kits Dimplex Solar collector installation optionsRoof kits On roof kitsFree standing kits Free standing kit row distance calculation details Where mtot Minimum mass required Space requirement Space requirement Dimplex SOLC220 on roof installationTechnical manual Dimplex solar control unit SOLCU1/2/3 Technical dataTemperature sensors Dimplex solar pump unit SOLPU1/2 Components of Dimplex solar pump unit SOLPU1 and SOLPU2 Pump unit connections 1, 2, 10Bar pressure relief valve Non return ball valve, temperature gauge 5Pressure gauge Circulation pumpFlow meter Expansion vessel fixing kitAir purger and related components 11, 14 Insulation cover Pump connectionTechnical data Expansion vessel sizing Dimplex solar expansion vessels SolevWhere Vep System expansion volume Where pmp Bar Membrane pressure Dimplex expansion vessel fixing kit SOLVK1 Technical data Dimplex Solev expansion vesselsDimplex heat transfer medium SOLHT20 Technical data Dimplex expansion vessel fixing kit SOLVK1Dimplex solar cylinders SCx Technical data Dimplex solar heat transfer medium SOLHT20SCx175/215/255/305sd SCx175/215/255/305si Key features Dimplex solar cylinders SCx Wiring integration Dimplex solar cylinders SCxTechnical manual Technical manual Solar loop integration Hydraulic integration Dimplex solar cylinders SCxTechnical data Dimplex solar cylinder SCx ST0133 a 02/09 Pressure drop Dimplex solar SCx cylinder coils Dimplex solar accessoriesCorrugated flexible pipe SOLFH10/15 Feed through tiles Solftt and Solftm Required information System sizingSizing guide Dimplex solar initial sizing guide ST0133 a 02/09 Type of pipe work Pipe workPipe work sizing Pipe work pressure drop Pipe work liquid contentPipe work insulation Pipe work fixationCommissioning Dimplex commissioning procedure Part ST0133 a 02/09Control unit OperationDisplay information and menu structure SOLCU1 ST0133 a 02/09 Pump unit MaintenanceCheck system pressure Check pipe work for leaksCheck roof feed-through for leaks Check content discharge vesselCheck condition of pipe insulation Check collector fixationsTechnical manual Dimplex solar kits Product and kit listingsDimplex solar components Technical manual Product implementation stage Dimplex literature structureOn site questionnaire AppendixOn site inspection Technical manual Technical manual Dimplex solar system direct overall view Dimplex solar system indirect overall view Example Dimplex solar simulation report Technical manual Technical manual Technical manual Technical manual Technical manual

ST0133 specifications

The Dimplex ST0133 is a sophisticated and efficient electric heating solution designed for modern living spaces. This product is an ideal choice for those seeking warmth and comfort without compromising on style or energy efficiency. The unit stands out due to its sleek design, making it a perfect fit for contemporary interiors.

One of the key features of the Dimplex ST0133 is its impressive heat output. With a power rating that effectively caters to various room sizes, it ensures consistent warmth, even during the coldest winter months. This makes it suitable for a variety of settings, from cozy homes to larger commercial spaces.

The Dimplex ST0133 is equipped with advanced heating technology that utilizes a unique convection system. This system efficiently warms the air in the room, creating a comfortable environment without the need for bulky radiators or traditional heating methods. The unit heats up quickly and distributes warmth evenly, eliminating cold spots and ensuring a pleasant atmosphere.

User control is another strength of the Dimplex ST0133. The unit features a user-friendly digital control panel that allows for precise temperature regulation. This enables users to set their desired comfort levels easily. Additionally, the programmable timer helps save energy by allowing users to set specific heating schedules, resulting in reduced electricity bills.

Safety features are paramount in the Dimplex ST0133 design. It is equipped with a thermal cut-out system that prevents overheating, ensuring safe operation even in prolonged use. The unit is also designed with a child lock feature, providing peace of mind for families with young children.

In terms of aesthetics, the Dimplex ST0133 is available in various finishes, allowing it to blend seamlessly with different home decors. Its modern look adds an elegant touch to any room while maintaining a low profile.

Moreover, this electric heater is easy to install and requires minimal maintenance, making it a practical choice for homeowners and businesses alike. Overall, the Dimplex ST0133 combines style, efficiency, and safety, making it a leading option in the realm of electric heating solutions. It is an intelligent investment for anyone looking to enhance their living space with reliable and modern heat.
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