Tech Controllers ST-976 - Additional Output 1, 2


34
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.

SETTINGSMENU


ADDITIONALOUTPUT

TYPEOFDEVICE



OutputOFF

CHpump

DHWpump

Circulatingpump

CHboilercleaning*

Alarm

Remoteoperation
PompaC.O.
TYPEOF
DEVICE 

CHPUMP



Roomregulator

Temperaturethreshold

Hysteresis

Sensorselection

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).