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AUDAX TOP 18 ErP

29 GRAPH OF AUDAX TOP 18 ErP PUMP FLOW RATE/HEAD

100

110

0 1800 5400

3600900 45002700

29.1 AUDAX TOP 18 ErP PUMP SETTINGS AND CONFIGURATIONS

AUDAX TOP 18 ErP range boilers are supplied with a low power

consumption pump with variable speed control and settable

according to the following settings.

TECHNICAL NOTE: System minimum water content:

To facilitate proper execution of the AUDAX TOP ErP heat pump defrost cycles, a minimum water content in the system is required,

which must be: 6 l/kW of the machine's power for any type of system. e ywheel guarantees normal operation of AUDAX TOP ErP

with systems divided into zones (with variable water content in circulation). e ywheel also guarantees proper operation with fan coils

used for cooling (a condition in which the ow temperature is very low and has signicant heat load variations that vary the number of

active fan coils). It is also important to check that the dehumidier line has a minimum of 3 l/kW of the machine (dehumidier hydraulic

circuit connection).

Assistance Menu -> System denition

Menu item Description Range Default

Pump control

Enable the pump operation with speed set “Max.speeed” or the modulating mode

with tracking of the “Modulating” temperature dierential.

Max.speed/

Modulating

Minimum speed Value of minimum speed used in modulating operation. 19% ÷ 50% 50%

Maximum speed Value of maximum speed used in modulating operation. 50% ÷ 100% 100%

Delta T Temperature delta to be maintained with modulating operation. 2 ÷ 20 5

Head (kPa)

Flow rate l/h

All curves have been dened in constant pressure mode with various speeds.

Speed 100%

Speed 75%

Speed 50%

Speed 38%

Speed 25%

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