Technical manual

SOLAR

flexible hose SOLFH10/15 is DN16 and only provides ¾” connections. Should this prod- uct be applied to the SOLPU2 a 1” to ¾” reducer has to be provided with sufficient seal- ing surface for the flat seal to sit against. The 1”F x 22mm or 1”F x 28mm straight con- nection has to be provided by the installer.

6 bar pressure relief valve (3)

The 6 bar pressure relief valve is part of the safety components in the solar circuit. Its correct application is therefore important. The discharge pipe from the relief valve must be:

-22mm copper pipe

-with no more than 2 bends

-terminating safely (it is recommended to end the discharge pipe in a suitable vessel and not to discharge to drain)

Should the pressure relief valve open and discharge fluid, this is a clear sign that the system is malfunctioning. The malfunction can be caused by:

-cold fill pressure of system too high

-expansion vessel too small

-expansion vessel pre-charge not adjusted correctly

-expansion vessel faulty

-solar collector array considerably oversized

Pressure gauge (4)

The pressure gauge indicates the current pressure inside the solar thermal loop. In a properly designed, installed, commissioned and operated system the pressure indicated by the pressure gauge should remain constant in all operating conditions.

Non return ball valve, temperature gauge (5 and 16)

The non return valve is critical in a solar thermal system to avoid gravity circulation at times when the cylinder is warmer than the collector as during night time hours. The non return valves avoid unwanted gravity circulation from the cylinder to the collector, thus losing energy from the system. As both the flow and the return path of the SOLPU1/2 pump units have a non return valve the circulation of flow from the collector to the cylinder can be eliminated when the pump is switched off.

The non return valves have an integrated ball valve which can be closed by turning the handle with the integrated manual thermometer by 90°. This allows the temporarily isolation of certain parts of the system for maintenance purposes. The non return valves can be opened for venting or draining purposes by turning the handles to 45°.

Circulation pump (6)

Two different circulation pumps are being utilised in the SOLPU1 and the SOLPU2 pump station to increase the capacity of the range. The characteristic pump curves for the pumps used are shown in 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.

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ST0133 – A 02/09

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Dimplex ST0133 Bar pressure relief valve, Pressure gauge, Non return ball valve, temperature gauge 5, Circulation pump
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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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