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Страница 1: ...isplay Control The ALFA NET 55 RTDF thermostat can be controlled by four push buttons on the front These keys are SET view change the setpoint UP increase value DOWN decrease value MODE relay status k...
Страница 2: ...In case of open circuit sensor the display alternates between error code E and H as indication for a open circuit sensor Reset Alarm When a error messages appears it can be reset by pushing the SET k...
Страница 3: ...fter defrost Dripoff time 0 No 1 Yes 0 50 C 0 No 1 Yes 0 99 Minutes 0 Natural 1 Hotgas Elec 50 50 C 0 99 Minutes 0 99 Minutes 0 2 0 0 0 0 2 0 0 0 30 31 32 33 34 35 36 37 Defrost interval time Maximum...
Страница 4: ...al number x1000 Serial number units 0 255 0 255 00 99 1 52 0 255 0 999 1 Fan control The ALFA NET 55 RTDF has several parameters for fan control Normally the fan is always active accept for one of the...
Страница 5: ...RTDF works normally Parameter 33 1 Compressor active at Defrost P24 1 For hot gas Defrost systems the Compressor needs to be activated while defrosting After Defrost the Drip off time parameter 27 st...
Страница 6: ...6 Dimensions...
Страница 7: ...7 Connections...
Страница 8: ...8 Function diagram Address VDH Products BV Tel 31 0 50 30 28 900 Produktieweg 1 Fax 31 0 50 30 28 980 9301 ZS Roden Email info vdhproducts nl The Netherlands Internet www vdhproducts nl...