Pump - Tech Controllers EU-i-2 Plus OT User Manual

Example:
Activation delta: 10°C
The device connected to the contact will be enabled when the buffer temperature drops below 60°C ( Source temp. -
delta). It will be disabled when the temperature increases to 62°C (Source temp. - delta) + hysteresis.
3. CH PUMP
This algorithm is intended for controlling the operation of e.g. CH pump according to the readings from one temperature
sensor. The device connected to the contact will be enabled when the activation threshold temperature has been reached.
It will be disabled when the temperature drops (including hysteresis).
•
Range (additional settings) – select this option to create a temperature range within which the CH pump will
operate.
•
Activation threshold – select this option to set the temperature value above which the contact will be enabled.
•
Deactivation threshold (additional settings) – this option appears after the RANGE function has been selected.
The user may set the temperature value above which the contact will be disabled (Deactivation
threshold+Hysteresis).
•
Hysteresis – the user may set the temperature value below which the contact will be disabled (Activation
Threshold-Hysteresis).
•
Heating need (additional settings) – it is a pre-set value which will be taken into account when you select the
contact with the CH pump operating in Heating need algorithm. This function appears after the RANGE function
has been selected.
•
External temperature (additional settings) – the contact operates according to external temperature value (if an
external temperature sensor is used). The user may set a threshold external temperature at which the contact
will be disabled. It will be enabled when the external temperature drops below the threshold and when the
activation threshold has been reached.
•
Sensor – the user may select the heat source sensor.
•
Room regulator – the user may configure the influence of the room regulators on the contact operation. If this
option has been selected, the device connected to the contact will be enabled if the activation threshold has
been reached and if any of the selected regulators reports too low temperature (heating need). The device will
be disabled when all selected regulators report that the room temperature has been reached.
Hysteresis: 2°C Source temperature: 70°C
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