Heating/cooling quantity measurement

The heating or cooling quantity is recorded by the pump’s volume flow detection and checking the temperature in the feed and return.

A temperature sensor in the pump housing records either the feed or the return temperature, depending on its installation position.
A second temperature sensor must be connected to the pump using analogue inputs AI1 or AI2.

NOTICE

The “-R7” version of the Stratos MAXO /-D has no internal temperature sensor. The “internal sensor” cannot therefore be selected as a sensor source in the feed or return. Only sensors connected to AI1 and AI2 can be selected.

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 energy meter. The measurement can be used for the internal distribution of heating and cooling 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 , select

Then configure the sensor source and sensor position in the “Sensor feed temperature” and “Sensor return temperature” menu items.

Configuring the sensor source in the feed

In the “Diagnostics and measured values” menu , select

Configuring the sensor source in the return

In the “Diagnostics and measured values” menu , select

Potential sensor source options:

• Internal sensor (*)
• Analogue input (AI1)
• Analogue input (AI2)
• CIF module

Configuring the sensor position in the feed

Select “Internal sensor”, (*) “Feed” or “Return” as the sensor positions.

Configuring the sensor position in the return

Select “Internal sensor”, (*) “Feed” or “Return” as the sensor positions.

Potential sensor position options:

• Internal sensor (*)
• Analogue input (AI1)
• Analogue input (AI2)
• BMS (Building management systems)
• Feed
• Return
• Primary circuit 1
• Primary circuit 2
• Secondary circuit 1
• Secondary circuit 2
• Accumulator
• Hall
• Circulation

(*) not selectable for the R7 variant

NOTICE

When the heating or cooling quantity measurement is activated, this menu can be used to read the total overall heating or cooling quantity. The current heating and cooling capacity is displayed. If desired, the heating quantity can be re-set to 0 here.

NOTICE

For constant recording of the heating/cooling quantity without interrupting data recording, the pump must only be switched on/off via a digital input with EXT. OFF. There is no data recording when the mains voltage is switched off.