Wilo Stratos MAXO Notice De Montage Et De Mise En Service page 127

CAUTION
Blockage of the pump due to long downtimes!
Long downtimes may lead to blockage of the pump. Do not deactivate pump kick!
Pumps switched off through remote operation, bus command, control input External OFF, or 0 ... 10 V signal
are started up for a short time. This prevents blockage after long downtimes.
In the "Settings" menu
1. "Device settings"
2. "Pump kick"
• The time interval for the pump kick can be set between 2 and 72 hours (factory setting: 24 h).
• The pump kick can be switched on and off.
NOTICE
If a power disconnection is planned for a longer period of time, the pump kick must be taken
over by an external control by briefly switching on the power supply.
For this purpose, the pump must be switched on at the control side before the power dis-
connection.
When the pump kick is active, the pump runs for 5 s at min speed.
13 Additional settings
13.1 Heating/cooling quantity measurement
The heating or cooling quantity is recorded by the pump's volume flow detection and checking the tempera-
ture in the feed and return.
A temperature sensor in the pump housing records either the feed or the return temperature, depending on
the pump's installation position.
A second temperature sensor must be connected to the pump using analog inputs AI1 or AI2.
The heating and cooling quantity is identified separately based on the application.
NOTICE
The energy measurement for heating or cooling can be conducted without an additional en-
ergy meter. The measurement can be used for the internal distribution of heating and cool-
ing costs or for system monitoring. As the heating and cooling quantity measurement is not
calibrated, it cannot be used as the basis for billing.
Activating heating/cooling quantity measurement
In the "Diagnostics and measured values" menu
1. "Heating/cooling quantity measurement"
2. Select "Heating/cooling quantity On/Off".
Installation and operating instructions • Wilo-Stratos MAXO/-D/-Z • Ed.02/2023-10
, select
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en-US
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