Additional Output 1, 2 - Tech Controllers ST-976 User Manual

4.4.8
Additional output 1, 2
This submenu includes parameters used to configure the operation of the additional device connected to the
additional output of the controller. After the type of device has been selected, the display shows an additional
menu with a range of parameters of the additional pump to be configured.
Pompa C.O.
When this function is active, the additional pump serves as the CH pump. The pump is activated when the
sensor temperature exceeds the temperature threshold. The following parameters need to be configured for
this function to work correctly:
Room regulator
When this option is selected and the pre‐set room temperature is reached, the CH pump operation is based
on Operation time and Pause time parameters.
Temperature threshold
This parameter defines the activation time of the additional pump which serves as the CH pump. When a
selected sensor reaches this temperature, the pump is activated.
Hysteresis
This parameter defines the hysteresis of the additional CH pump threshold temperature. It is the difference
between the threshold temperature and the temperature of deactivation.
Example:
The threshold temperature is 40°C and hysteresis is 5°C: When the threshold temperature is
reached, CH pump is activated. It is switched off when the temperature drops to 35°C).
34
TYPE OF
DEVICE
Output OFF
CH pump
DHW pump
Circulating pump
CH boiler cleaning*
Alarm
Remote operation
Room regulator
Temperature threshold
Hysteresis
Sensor selection