Wilo Stratos MAXO Notice De Montage Et De Mise En Service page 135

13.5 Operating data/statistics
In the "Diagnostics and measured values" menu
1. "Operating data, statistics".
The following operating data, measurement data, and statistical data are displayed:
• Hydraulic operating data
–
Actual delivery head
–
Actual volume flow
–
Actual fluid temperature (if a temperature sensor is connected and configured)
• Electrical operating data
–
Power voltage
–
Power consumption
–
Total energy absorbed
–
Operating hours
• Measured heat quantity
–
Total heating quantity
–
Heat quantity since the last time the counter was re-set
–
Actual heating capacity
–
Actual feed temperature
–
Actual return temperature
–
Actual volume flow
• Measured cooling quantity
–
Total cooling quantity
–
Cooling quantity since the last time the counter was re-set
–
Actual cooling output
–
Actual feed temperature
–
Actual return temperature
–
Actual volume flow
Accuracy of the displayed and recorded operating data
Volume flow:
The accuracy of the volume flow specification with pure water is approx. +/- 5% of the duty point.
If a water-glycol mixture is used, the accuracy decreases.
Temperature:
A temperature sensor is installed in the pump housing for temperature detection.
The accuracy of the temperature is +/- 0.5 K in the temperature range of 104 °F ... 176 °F (+40 °C ... +80 °C).
Outside these temperatures 14 °F ... 104 °F and 176 °F ... 230 °F (-10 °C ... +40 °C and +80 °C ... +110 °C) the
accuracy is +/- 2 K.
Heating/cooling quantity measurement:
The information on the heating and cooling quantity is derived from the recorded temperatures in the feed
and return and from the volume flow. The accuracy of the heat quantity measurement is +/- 10%, that of
the cooling quantity measurement +/- 25%.
Installation and operating instructions • Wilo-Stratos MAXO/-D/-Z • Ed.02/2023-10
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en-US
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