Danfoss ECL 2000, User Manual

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Day-to-Day Operation
EY.65.H4.02
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View Status To view status information for one circuit:
1. In the System Overview picture, press until you see the picture of the
appropriate circuit.
2. Press to display status information for the circuit, once more to display
today’s log, and again to display yesterday’s log.
The status of individual
components of the se-
lected circuit. The sym-
bols used in the picture are
explained below. Today’s log. The fully
drawn curve shows varia-
tions in flow temperature.
The dotted curve indicates
the return temperature.
4
Yesterday’s log. The fully
drawn curve shows the
flow temperature, the
dotted curve shows the
return temperature.
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Temperature readings The following temperature information is available in Status pictures, depending on
the selected application and the type of circuit:
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Actual (49 °C) and reference flow temperature (calcu-
lated, 48 °C), return temperature (24 °C) for a radiator
heating system.
Primary return temperature and secondary flow tem-
perature for a circuit that includes a heat exchanger.
Charging (50 °C) and return temperature (23 °C), upper
tank temperature (48 °C) and lower tank temperature
(23 °C) for a circuit that includes a hot-water storage
tank.
Flow temperature (50/40 °C) measured by two sensors
in a circuit that includes a hot-water storage tank.
Pump and valve status
The following pump and valve information can be available in Status pictures, de-
pending on the application and the type of circuit.
Pump status: Pump no. 2 is currently off while pump
no. 3 is operating.
Valve status: Valve 24 % open.
Valve motor status: Valve moving in the open-
ing/closing direction, respectively.
Valve motor status: Valve is not moving.
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See Appendix C, page 87 for a complete list of the data displayed in Log pictures
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A blank reading indicates that the sensor is not connected or that there is a sensor error