Modular construction of LAUDA Heating- and Cooling systems -
Basic modules
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Consumer
Accurate temperature control depends on the object or equipment required to be controlled. The complete thermal circuit consists of the consumer, the LAUDA temperature control unit, the pipework system, mass and system volume in order to determine the final control quality. All these items have to be taken into consideration early in the planning stage.
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Three-way valve
LAUDA systems use their clever threeway control valve arrangement, especially when precise control is necessary. This final control element is able to smoothly and precisely mix two flows. All you need is a single position controller. This is an advantage you cannot beat with other valve circuits. Through the hydraulic balance of both flows, pressures and volume flows remain stable.
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Expansion tank
Expansion tanks may be executed atmospherically open, pressure blanketed inerted or as a diaphragm tank for pressurised hot water systems. Type, size and material are engineered individually according to the requirements.
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Controller
Temperature control always means to regulate temperature, i.e. to run if possible without temperature fluctuations, or even to run with controlled temperature ramps. In this case, the temperature control system has to be able to control along definite time/ temperature profiles. The LAUDA control module SR 500/501 records setpoint and actual value data and makes possible very precise control results via the cascade operation.
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Pumps
Pumps are responsible for the circulation of the heat transfer fluid. The following considerations play a big part when choosing the right pump: the pumping medium, the temperature range and even the type. Thermal fluid flow is always ensured via the three-way valve.
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