Tech Controllers ST-979 User Manual Download Page 1 | Manualshive

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ST-979 user’s manual

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Summary of Contents for ST-979

Page 1: ...ST 979 user s manual 1...

Page 2: ...ance of the electric motors as well as the insulation resistance of the cables The regulator should not be operated by children WARNING The device may be damaged if struck by a lightning Make sure the...

Page 3: ...Controlling DHW pump Controlling two additional pumps additional CH DHW floor circulating or CH boiler protection pump Weather based control Weekly control Cooperation with a room regulator offering t...

Page 4: ...ain situations e g after periodical cleaning of the furnace during controller operation There are four stages of the fire up process 1 Blow by In this stage the fan works at full speed in order to cle...

Page 5: ...operate according to user s settings Main menu Modulation settings 30 modulation Damping Damping process is independent of the current operation algorithm It may be activated by the user in the main...

Page 6: ...ation settings Operation algorithm Modulation 30 Modulation 60 Modulation100 Manual mode Igniter Blow Blow force Feeder Internal feeder Grate Ash remover Cleaning CH pump DHW pump Additional pump 1 Ad...

Page 7: ...s 3 C entering sustain mode takes place at the temperature of 60 C whereas returning to the operation mode takes place at 57 C V d 3 Pre set DHW temperature This function is used to define the pre set...

Page 8: ...boiler operates in sustain mode i e above the pre set temperature V e 5 Pause in sustain mode This option is used to set the feeder pause time when the CH boiler operates in sustain mode operating ab...

Page 9: ...ds of CH boiler operation on particular days of the week with the accuracy of 30 minutes During the periods of inactivity the CH boiler remains damped regardless of other factors e g signal from the r...

Page 10: ...ase by 50 C so it will be 650 C NOTE In order for the weekly control to function properly it is necessary to set current time and day of the week in Fitter s menu Time settings Delete This function en...

Page 11: ...rovided that the pre set buffer temperature bottom has also been reached Pre set temperature bottom This function enables the user to define the pre set temperature for the lower part of the buffer se...

Page 12: ...bles the user to adjust the brightness of the blank screen within the range of 3 50 V l 4 Blanking time This function enables the user to set the screen blanking time V l 5 Software update USB port en...

Page 13: ...n module controlling the mixing valve It is possible to connect two additional modules for controlling valves e g ST 431N There is a range of parameters allowing the user to adjust the valve operation...

Page 14: ...regulator Room reg temp lower Room temperature difference Change in set temperature Weather based control Valve pump Always ON Always OFF ON above threshold Switch on temperature Return protection Mi...

Page 15: ...ng plate Additional valve 1 2 Registration Valve OFF Valve type CH Floor Opening time Room regulator Control without room regulator Standard TECH regulator Proportional TECH regulator Standard valve r...

Page 16: ...ropriate plugs for RS socket Standard valve regulator This option should be selected if the valve will be controlled by a two state room regulator without RS communication Room reg temp lower This fun...

Page 17: ...he pre set switch on temperature If the pump is to be activated above the threshold the user should also define the threshold temperature of pump activation VI a 7 Return protection This function enab...

Page 18: ...HW valve If the sensor indicates a change in temperature deviation from the pre set value the electric valve will open or close by the pre set stroke in order to return to the pre set temperature VI a...

Page 19: ...ated It is switched off when the temperature drops to 35 C Sensor selection It allows the user to decide which sensor should provide data for activation of the additional CH pump Room regulator This o...

Page 20: ...ontrolling the operation of the device connected to the additional contact pre set temperature VI b 3 Circulating pump Once this option is selected the additional pump serves as the circulating pump T...

Page 21: ...ators to the controller VI c 1 TECH regulator Select this option if you connect a room regulator with RS communication Such a regulator enables the user to view current CH boiler parameters and change...

Page 22: ...e user to check if the cleaning device works properly by activating it for a specified period of time VI f Ash remover Ash removing procedure is activated once ON option is selected The user defines t...

Page 23: ...Activated when the external temperature drops to the level defined in Boiler 1 activation temperature minus Hysteresis value 3 Activated when the external temperature drops to the level defined in Boi...

Page 24: ...ers are active Once the pre set temperature is reached the boilers are selectively disabled every 20 minutes The deactivation procedure is repeated until one of these conditions is met 1 CH temperatur...

Page 25: ...oreover after sending a certain text message the user receives feedback on the current temperature of all the sensors Remote change of the set temperatures is also possible after the authorisation cod...

Page 26: ...utomatically unlocks itself In the case when this sensor is damaged or overheated the fan is also disconnected In the case of CH boiler protection in a closed system a STB type temperature limiter is...

Page 27: ...2 Power consumption W 9 3 Ambient temperature O C 10 50 4 Circulating pump output load A 0 5 5 Fan output load A 0 6 6 Range of temperature measurement O C 0 85 7 Accuracy of measurement O C 1 8 Range...

Page 28: ...DHW hysteresis 7 V d 5 Pump switch on temperature 7 V e Operation settings 8 V e 1 Operation algorithm 8 V e 2 Feeding pause 8 V e 3 Blow force 8 V e 4 Operation in sustain mode 8 V e 5 Pause in susta...

Page 29: ...2 Opening time 15 VI a 3 Valve type 16 VI a 4 Room regulator 16 VI a 5 Weather based control 17 VI a 6 Valve pump 17 VI a 7 Return protection 17 VI a 8 CH boiler protection 17 VI a 9 Opening direction...

Page 30: ...settings 24 VI b 2 Date settings 24 VI a Fuel level calibration 25 VI a External temperature correction 25 VI b GSM module 25 VI c Internet module 25 VI a Factory settings 26 VII Protections 26 VII a...

Page 31: ...2014 p 357 Directive 2014 30 EU of the European Parliament and of the Council of February 26 2014 on the harmonisation of the laws of Member States relating to electromagnetic compatibility EU Journa...

Page 32: ...TECH 32...

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