Akva Lux II VX H2WP (A260)

Application
The Akva Lux II VX H2WP is a substation featuring high performance and simple operation. The Akva Lux II VX H2WP is especially suitable for two-pipe systems and systems with floor heating. The substation is available in several capacity variants.

District heating (DH)
The substation is prefabricated with interconnecting components such as fitting piece and sensor pockets for insertion of a heat meter, as well as strainers, ball valves, thermometers and pockets for pressure gauges.

Heating (HE)
The heating side features a plate heat exchanger and two heating circuits. The radiator heating circuit consists of a safety valve, non-return valve, manometer, thermometers, strainer, expansion vessel, ball valves, multifunctional control valve, actuator and circulation pump, and the floor heating circuit consists of a non-return valve, thermometers, safety thermostat, strainer, ball valves, threeway valve, actuator and circulation pump. The temperature for the heating circuits is controlled by an electronic temperature controller with an outdoor temperature sensor. Depending on substation’s application, different heat exchangers dimensioned for central or floor heating can be used.

Domestic hot water (DHW)
The domestic hot water is prepared in a heat exchanger based on the flow principle and the temperature is regulated by the selfacting controller with integrated differential pressure controller - the PTC2+P with esave™ function. Supreme ease of operation is obtained via the combined hydraulic and thermostatic regulation of the PTC2+P controller. The pressure-controlled part allows primary and secondary side flow through the heat exchanger, only when hot water is tapped and blocks the flow immediately after completion of the tapping process. The thermostatic part controls the domestic hot water temperature. Thanks to the quickacting hydraulic control of the heat exchanger, it is largely protected from the formation of lime scale and growth of bacteria. The PTC2+P controller with integrated differential pressure controller compensates for variations in supply temperature and varying differential pressure and thereby ensures a constant domestic hot water temperature at all times. A thermostatic bypass enables tapping of hot water without any delay, ensuring the best possible efficiency and economy. The cold water connection includes a combined ball valve/non-return valve and safety valve.
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Domestic hot water recirculation
The Akva Lux II VX H2WP is equipped with bypass function as a standard, but it is prepared for DHW recirculation. Switching to DHW recirculation is possible from a constructional point of view, requiring only mounting of a separate circulation set (see options). Equipment for DHW recirculation is optional and must be ordered separately.