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ST 53.1 User s manual Table of contents I. Safety... 3 II. Description... 4 III. Installation... 4 IV. Operating the Controller... 6 IV.a) Principle of Operation... 6 IV.b) Control... 6 V. Controller Operation Modes... 7 V.a) Mode ECO PLUS... 7 V.b) Mode ECO... 7 V.c) Manual Operation... 7 V.d) Compressor Failure... 8 V.e) Anti-Legionella Mode... 8 V.f) Mode STOP... 8 V.g) Mode PARTY... 8 V.h) System Failure... 8 VI. Main Menu... 9 V.a) Party Mode... 9 V.b) LEGIONELLA Mode (Thermal Disinfection)... 9 V.c) Adjusting Current Time... 10 V.d) Setting Days of the Week... 10 V.e) Tank Pre-Set Temperature... 10 V.f) Tank Anti-Freeze... 10 V.g) Weekly Control... 10 V.h) Adjusting the Weekly Control... 10 V.i) Circulation Pump... 12 V.j) Information on Maintenance and Version... 12 V.k) Access Protection... 12 V.l) Protection Delay... 12 V.m) Language Selection... 13 VII. Servicing Settings... 13 VI.a) Manual Operation... 13 VI.b) Minimum Working Temperature... 14 VI.c) Heater Operation Below Minimum Temperature... 14 V.d) Additional Heat Source... 14 Parameters of Solar Collector... 14 Parameters of Additional Source... 16 V.e) Displaying Additional Temperatures... 16 V.f) Rozmrażanie parownika... 16 V.g) Tank Pre-Set Temperature Hysteresis... 16 V.h) Threshold Temperature ECO ECO PLUS... 16 V.i) System Protection... 16 V.j) Emergency Temperature... 16 V.k) Compressor Delay... 17 V.l) LEGIONELLA Function Temperature... 17 V.m) LEGIONELLA Function Duration... 17 V.n) LEGIONELLA Function Maximum Duration... 17 V.o) LEGIONELLA Function Reminder... 17 V.p) Adjusting Servicing Telephone Number... 17 V.r) Delete Control Temperature Alarm... 17 V.s) Adjusting Access Code... 17 V.t) Factory Settings... 17 VIII. Standby Mode... 17 IX. Protections... 17 X. Maintenance... 18 Technical data... 18-2 -
Tech I. Safety Before using the device for the first time the user should read the following regulations carefully. Not obeying the rules included in this manual may lead to personal injuries and device damage. The user's manual should be stored carefully. In order to avoid accidents and errors it should be ensured that every person using the device has familiarized themselves with the principle of operation as well as security functions of the device. If the device is sold or put in a different place make sure that the user's manual is there with the device so that any potential user has access to essential information about using the device and safety. The manufacturer does not accept responsibility for any injuries or damage resulting from negligence; therefore, users are obliged to take the necessary safety measures listed in this manual to protect their lives and property. WARNING High voltage. Make sure the regulator is disconnected from the mains before performing any activities involving the power supply (plugging cables, installing the device etc.) The device should be installed by a qualified electrician. Before starting the controller, the user should measure the earthing resistance of the electric motors as well as the insulation resistance of the cables. The regulator should not be operated by children. NOTE The controller may be damaged if struck by lightning. Make sure the plug is disconnected from the power supply during storm. Any other use than specified by the manufacturer is forbidden. Before and during the heating season, the controller should be checked for condition of its cables. You should also check if the controller is properly mounted and clean it if dusty or dirty. Care for the natural environment is our priority. Being aware of the fact that we manufacture electronic devices obligates us to dispose of used elements and electronic equipment in a manner which is safe for nature. As a result, the company has received a registry number assigned by the Main Inspector of Environmental Protection. The symbol of a crossed out rubbish bin on a product means that the product must not be thrown out to ordinary waste bins. By segregating waste intended for recycling, we help protect the natural environment. It is the user's responsibility to transfer waste electrical and electronic equipment to the selected collection point for recycling of waste generated from electronic and electrical equipment. - 3 -
ST 53.1 User s manual II. Description The ST-53.1 programmer is intended for the use and operation of an air-heat water pump. The purpose of this device is to control the operation of the compressor, the pump, the fan and the heater, as well as pumping of the additional heat source. Functions performed by the controller: - fan control - pump operation control - compressor operation control - heater operation control - additional heat source pump operation control Controller equipment: - large LCD touchscreen - tank temperature sensor (DHW) - unit control temperature sensor - additional heat source temperature sensor - optional solar sensor (when using the solar collector in the system) - casing made from high-quality materials resistant to high and low temperatures III. Installation The controller should be installed by a qualified person. WARNING Risk of fatal electric shock from touching live connections. Before working on the regulator, switch off the power supply and prevent it from being switched on again. CAUTION Incorrect connection of cables may lead to regulator damage. The rear part of the controller contains couplings to which the sensors as well as devices operated by the controller should be connected. - 4 -
An exemplary diagram of installation and connections: Tech An exemplary diagram of installation and connections when a solar collector is used: Pictorial diagram it cannot replace CH installation project. Its aim is to present how the controller may be expanded. This heating installation diagram does not include protective elements which are necessary to ensure correct installation. - 5 -
ST 53.1 User s manual IV. Operating the Controller IV.a) Principle of Operation The heat pump contains one heat generator as well as an optional electric heater by means of which heat is collected in a reservoir and heated to the pre-set temperature. The pump has a coil prepared for the connection of an external heat source, e.g. a CH boiler. The heat pump collects heat from the surrounding air and uses it to heat the water in the reservoir. The air and water heat pump delivers energy stored in the air and transfers it to a higher energy level. The temperature of energy collected in natural resources is too low for it to be directly used for heating. The ST-53.1 controller is adapted for the operation of a solar collector. The operation parameters regarding the solar collector are available in the controller's service menu. IV.b) Control Description of the control panel: 5 6 7 8 9 10 4 3 2 1 11 12 13 14 18 17 16 15-6 - 1. Stand-by mode 2. Current tank temperature 3. Electrical heater 4. Pre-set tank temperature 5. Icon informing about active antifreeze function 6. Icon informing about switched on circulation pump 7. Pump 8. Exchanger 9. Compressor 10. Fan 11. Current evaporator temperature 12. Additional heat source icon visible only when an additional heat source is switched on. The graphic symbol changes when a solar collector is connected and activated. 13. Current temperature of additional heat source 14. Entering the controller's menu.
15. Icon informing about active operation mode or failure (symbol "!"), 16. Day of the week and hour 17. Pump of additional heat source 18. Icon informing about switched on weekly control: Tech - - Weekly control switched on, heat pump active (within the time range indicated by the weekly program). - - Weekly control switched on, heat pump not active (beyond the range indicated by the weekly program). The large touchscreen and clearly designed graphics of the ST-53.1 programmer enable the user to conveniently and almost intuitively operate a number of devices the heat pump is equipped with. The main screen graphically shows the operation of the devices of the heat pump's equipment, and as a result of this the user may directly control and supervise all basic system parameters. A moving animation of the device is a sign of its active operation. During the main screen view, by clicking on the reservoir, the user may quickly change the pre-set temperature of the tank. In a similar manner, the user may change the time and proceed to the menu. V. Controller Operation Modes The controller may operate in various operation modes. Information about the current operation mode is visible on the display (icon in the bottom part of the screen see description of the control panel in the previous chapter, number 15). V.a) Mode ECO PLUS Mode activity icon: This mode is activated automatically after the tank exceeds the ECO / ECO PLUS temperature threshold (setting in the servicing menu). The unit is then switched off, and the tank is additionally heated by the heater as well as the additional heat source (if it is switched on). V.b) Mode ECO Mode activity icon: This mode is activated automatically if the tank's temperature is lower than the value of the ECO / ECO PLUS threshold (setting in the servicing menu). Only the unit operates then, the heater does not operate. V.c) Manual Operation Mode activity icon: This mode is activated by the user in the servicing menu. After the user activates this mode and returns to the main screen, a click on the icon of a given device will activate it. The device remains switched on until the icon is touched again. - 7 -
ST 53.1 User s manual V.d) Compressor Failure Mode activity icon: This mode is activated automatically after the emergency temperature on the control sensor is exceeded. The unit is switched off. After the defect which caused the dangerous increase in temperature is repaired, the user should cancel the control temperature alarm in the servicing menu. NOTE In the case of compressor failure, the user should contact the person installing the device. V.e) Anti-Legionella Mode Mode activity icon: This mode is activated by the user in the controller's main menu. This is a mode in which the tank is thermally disinfected which process consists in increasing the tank's temperature to the value of disinfection temperature (see description in the following chapter). V.f) Mode STOP Mode activity icon: This mode is activated automatically in the case of the tank sensor's failure. In such a situation, the damaged sensor should be replaced or repaired and then the controller should be reset. V.g) Mode PARTY Mode activity icon: This mode is activated by the user in the controller's main menu. All possible sources of heat are activated in this mode so that the tank reaches the pre-set temperature as fast as possible. V.h) System Failure Mode activity icon: This mode is activated automatically in the case of the pressure switch sensor's failure. The unit is switched off. After the defect which caused damage to the pressure switch's sensor is repaired, the user should cancel the control temperature alarm in the servicing menu NOTE In the case of system failure, the user should contact the person installing the device. - 8 -
VI. Main Menu Tech After pressing the menu icon, the user proceeds to the review of cards with particular functions. The controller has five cards, each of which has no more than three functions. In order to proceed to adjusting the selected parameter, the user should touch the icon symbolizing this function. Touching the icon again moves the user to the screen enabling them to change the settings. The introduced changes are approved after the user touches any space on the screen, or the approval icon:. ICON ICON Party Mode LEGIONELLA Mode (on/off) Adjusting Current Time Parameter Card 4/5 Information on Maintenance and Software Version Access Protection (on/off) Protection Delay Setting days of the Week Tank Pre-Set Temperature Parameter Card 5/5 Language Selection Service Settings Tank Anti-Freeze Weekly Control (on/off) Adjusting the Weekly Control Circulation Pump V.a) Party Mode After switching the Party Mode on, the pump's heat tank reaches the pre-set temperature in the fastest possible time. All available heat sources operate simultaneously in this mode. V.b) LEGIONELLA Mode (Thermal Disinfection) Thermal Disinfection involves increasing the temperature to a necessary disinfection temperature of at least 60 C in the entire DHW circulation. New regulations impose the obligation to adjust the tank to periodical thermal disinfection conducted at a water temperature no lower than 60 C (recommended temperature 70 C). The ducts, fittings and technological system of hot water preparation need to comply with this condition. The boiler's disinfection is aimed to eliminate the Legionella Pneumophila bacteria which cause a reduction of the body's cell immunity. The bacteria often multiply in stagnant hot water tanks (optimum - 9 -
ST 53.1 User s manual temperature 35 C), which frequently happens, e.g. in boilers. After activating the Legionella Mode, the boiler heats up to 70 C (factory setting) and maintains this temperature for 30 minutes (factory setting) and then comes back into regular operation mode. From the moment the disinfection is switched on, the temperature of 70 C needs to be reached in no longer than 90 minutes (factory setting). Otherwise, this function switches off automatically. Any changes of settings for this function are only possible in the servicing mode. V.c) Adjusting Current Time By setting the timer, the user defines the current time. Setting the time is necessary for the proper functioning of the Weekly control. V.d) Setting Days of the Week By using this function, the user sets the current day of the week. Setting the day of the week is necessary for the proper functioning of the Weekly control. V.e) Tank Pre-Set Temperature This function is used to set the pre-set tank temperature; this temperature may also be changed directly from the controller's Main Screen after clicking on the reservoir. V.f) Tank Anti-Freeze This function is used to specify anti-freeze actions used to protect the system against freezing. After the temperature drops below the specified temperature threshold (factory threshold is 5 C), the heat pump or the heater are activated permanently; they are switched off when the temperature in the circulation reaches the value of the temperature threshold plus 3 C (in the case of the factory setting, this will be 8 C). The user may select which device the anti-freeze function is to be applied to (heater or heat pump) and may also set the temperature threshold. V.g) Weekly Control This option is used to switch on / off the weekly control activity. Weekly control will operate properly after setting of the current time and day of the week. V.h) Adjusting the Weekly Control This function is used to program the heat pump's activity in a daily operation cycle for particular days of the week with accuracy to one hour. 1. After pressing the icon for adjusting the weekly control, a screen appears where the user may select the day of the week, the settings of which the user wishes to adjust: The user may change the day of the week using arrows or a slide. After selecting the day of the week the settings of which the user wishes to change, the user should click its name. - 10-2. A screen for changing settings appears on the controller's display:
Tech The user selects hours in which the heat pump is to be active (the hours: "06" and "07" are marked on the screenshot above this means that the heat pump is to be active between 06:00 and 07:59). Using the icon the user proceeds to the next settings screen with subsequent hours. After selecting the requested settings for the entire day, the user clicks the icon accepting the settings and, at the same time, proceeding to the screen for copying settings for other days. 3. The user may copy daily settings for: - business days after selecting this option, the daily settings are copied for days from Monday to Friday. - for Saturday Sunday after selecting this option, the daily settings are copied for weekends. - 11 -
ST 53.1 User s manual - for the entire week after selecting this option, the daily settings are copied for all remaining days of the week. - cancel the copying for other days of the week NOTE In order for the weekly control to be active, after selecting the settings of particular time intervals for the heat pump's activity the user should switch on the weekly control (Menu>> Weekly control>> Switch on). V.i) Circulation Pump It is possible to connect a circulation pump - with this function of the menu, the user may define particular operation parameters of this pump - operation time, pause time as well as hours and days of the week when the pump may be active. V.j) Information on Maintenance and Version After selecting this function, the display shows the logo of the heat pump's manufacturer, the software version as well as the telephone number for the device's servicing (the servicing telephone number may be changed in the servicing settings). V.k) Access Protection In order to protect the device against unwanted changes in settings, e.g. made by children, a lock has been introduced (access code) which is activated after a pre-set idle time. This function enables the user to activate this protection (switch on/ off) and enter the access code (by means of which it will be possible to activate the locked controller. V.l) Protection Delay In this setting the user declares the idle time after which the controller is locked (in seconds). In order - 12 -
Tech to start programming the locked device, the user should press the padlock symbol on the display and enter the set access code. V.m) Language Selection This function enables the user to define the controller's language version. VII. Servicing Settings In order to start the controller's servicing menu, the user should enter a four-digit access code. The factory setting for this code is: 1111. If necessary, this code may be changed in the servicing menu. The servicing menu is operated like the main menu - after entering the servicing menu, the user proceeds to the review of cards with particular functions. The servicing menu has six cards, each of which has no more than three functions. When certain functions are switched on in the servicing menu, additional options appear - the number of cards may change. ICON ICON Parameter Card 1/7 Manual operation (on/off) Minimum Operation Temperature Heater Operation Below Minimum Temperature Parameter Card 5/7 LEGIONELLA Function Duration LEGIONELLA Function Maximum Time LEGIONELLA Function Reminder Parameter Card 2/7 Additional Heat Source (on/off) Displaying Additional Temperatures Unfreezing the Evaporator Parameter Card 6/7 Adjusting Servicing Telephone Number Delete Control Temperature Alarm Adjusting Access Code Parameter Card 3/7 Tank Pre-Set Temperature Hysteresis Threshold Temperature ECO- ECO PLUS System Protection Parameter Card 7/7 Factory Settings Parameter Card 4/7 Emergency Temperature Comressor Delay Legionella Function Temperature VI.a) Manual Operation After selecting this function, the screen view switches to the system view where the user clicks on the selected device on the display and switches it on / off in order to check the correctness of its operation. - 13 -
ST 53.1 User s manual VI.b) Minimum Working Temperature This function is used to define the minimum temperature (threshold) for the heat pump to switch on. VI.c) Heater Operation Below Minimum Temperature Using this function, the user should select whether the heater will operate (Switch on) below the minimum operation temperature, additionally heating the tank, or whether it should be switched off (Switch Off). V.d) Additional Heat Source This function is used to switch on / off the activity of the additional heat source. After pressing the icon of the additional heat source, the user changes the setting using the arrows: Switch Off After selecting this option, the controller will not operate the additional heat source. Solar Collector After selecting this option, the controller will operate the system equipped with a solar collector. Additional parameters, which will enable the user to configure the collector operation, will appear in the servicing menu. The icon of the solar collector will appear on the main screen. Additional Source After selecting this option, the controller will operate the system equipped with an additional heat source - e.g. a CH boiler. Additional parameters, which will enable the user to configure the operation of the additional source, will appear in the servicing menu. An icon for the additional source will appear on the main screen. Solar Collector Collector Switch on Delta Collector Switch Off Delta Collector Overheating Delta Additional Source Additional Source Switch on Temperature Additional Source Switch On Hysteresis Operation of Heat Source by Weekly Control Collector Overheating Temperature Maximum Collector Temperature Collector Anti-Freeze Minimum Collector Temperature Heat Pump Switch On Delay Circulation Sampling Tank Overheating Temperature Cooling Tank to Pre-Set Operation of Additional Source by Weekly Control Parameters of Solar Collector Collector Switch On Delta This function defines the difference between the temperature of the collector and the tank, at which point the pump begins to operate (it is the threshold value of pump when switched on). Collector Switch Off Delta This function defines the difference between the temperature of the collector and the tank, at which point the pump switches off (so as not to cool the tank). - 14 -
Tech Collector Overheating Delta This parameter applies to the emergency pump switch on in the case of an excessive growth in temperature of the collector during standby mode. When the temperature rises to the value of the collector overheating temperature reduced by the value of overheating delta, the pump switches on. Collector Overheating Temperature It is the alarm collector temperature. If the collector temperature reaches the value of the collector overheating temperature reduced by the value of overheating delta, the pump is forced to switch on to cool down the solar panels. Hot water will be discharged regardless of the pre-set tank temperature. The pump will operate until its temperature drops below the alarm temperature by the value of overheating delta or until the tank reaches the maximum acceptable temperature. Maximum Collector Temperature This setting enables the user to set the value of the collector's maximum alarm temperature at which the pump may be damaged. This temperature should be set according to technical data of the owned collector. Due to the phenomenon of glycol "gelatinization" at high temperatures and the risk of damaging the solar pump, it is switched off after the maximum alarm temperature is reached (the regulator proceeds to its collector overheating mode). Collector Anti-Freeze Due to various freezing temperatures of fluids in the solar system, an anti-freeze temperature has been introduced. This parameter defines the minimum safe temperature at which the glycol liquid does not freeze (temperature measured by the collector). In the case of a significant drop in the collector's temperature (to the value of this parameter), the pump switches on and operates continuously until the collector heats up to a safe temperature. The settings range of this coefficient ranges within -50: +10 C. Minimum Collector Temperature This parameter defines the threshold value of the collector's temperature below which the pump will not switch on even if the solar pump switch on delta is reached. Heat Pump Switch On Delay When the collector's temperature drops below the tank's temperature, the heat pump is switched on with a delay as programmed in this parameter. Circulation Sampling This function enables the user to switch on (or off) circulation sampling aimed at updating the temperature reading consisting in a short activation of the collector's pump (when the regular conditions for the pump to switch on are not met). Circulation sampling may depend on the temperature (selected option Temperature Sampling) or on time (selected option Time Sampling). In the case of temperature sampling, the pump is switched on for a moment after each increase in the collector's temperature by 3⁰C. In the case of time sampling, the pump is switched on with a frequency defined by the user in the parameter Sampling Pause to a definite time in the parameter Sampling Time. Regardless of the type of sampling, it is not active if the collector's temperature drops below the sampling activation threshold value. Tank Overheating Temperature If the temperature on the solar panels increases excessively, the controller switches on the additional pump in order to cool the collector down. This pump will operate until the tank reaches the threshold value specified in this parameter. Cooling Tank to Pre-Set Cooling the tank to its pre-set temperature consists of switching on the additional pump when the tank's temperature exceeds the pre-set temperature and the solar panels are cooled down (e.g. at night). After this function is switched on, the controller switches on the additional pump in order to cool the tank down to the level of its pre-set temperature. Operation of Heat Source by Weekly Control This function defines whether the additional heat source pump will switch on simultaneously with the - 15 -
ST 53.1 User s manual set weekly program (Switch On) or whether it will operate independently according to the set activation temperature (Switch Off). Parameters of Additional Source Activation Temperature of Additional Heat Source This option is used to set the Activation Temperature of the Additional Heat Source (it is the temperature measured on the additional source sensor). Below the pre-set temperature, the additional source pump does not operate, and above this temperature the pump is switched on until it reaches the pre-set tank temperature. Hysteresis of the Additional Heat Source Activation Temperature This option enables the user to define the temperature hysteresis of switching the additional heat source to the heat pump. It is the difference between the pre-set temperature (required on the heat pump - when the additional source pump switches off) and the temperature of activating the additional heat source pump again after the drop in temperature on the tank (for example: when the pre-set temperature has the value of 55 C and the hysteresis is 3 C. After reaching the pre-set temperature, namely 55 C, the additional source pump switches off. The additional source pump switches on again when the temperature drops to 52 C). Operation of Heat Source by Weekly Control This function defines whether the additional heat source pump will switch on simultaneously with the set weekly program (Switch On) or whether it will operate independently according to the set activation temperature (Switch Off). V.e) Displaying Additional Temperatures Activating this function will result in displaying readings from particular temperature sensors on the main screen. V.f) Evaporator defrosting This option is used for activation of the evaporator defrosting function. If the temperature of the evaporator sensor is lower than the temperature threshold set by the user, the compressor will be deactivated and the fan will work until the moment when the evaporator temperature reaches the threshold value increased by hysteresis value of the evaporator temperaturę. NOTE For the evaporator defrosting function to be possible to carry out, the external temperature must be higher than the Minimum working temperature. V.g) Tank Pre-Set Temperature Hysteresis This option enables the user to define the tank temperature hysteresis. It is the difference between the pre-set temperature (required on the boiler when the heat pump switches off) and the temperature when the heat pump returns to operation. V.h) Threshold Temperature ECO ECO PLUS The threshold ECO ECO PLUS is the tank's temperature at which the unit is switched off and further additional heating of the tank begins to proceed with the use of a heater and/or an additional heat source. V.i) System Protection The system protection's operation depends on the pressure switch, namely the pressure difference sensor. If this function is activated, the signal from the pressure switch transmitter with excessive pressure will switch off the pump and activate the alarm. V.j) Emergency Temperature Emergency temperature is a parameter protecting the compressor and the unit against overheating. If the temperature of the compressor on the control sensor increases in a hazardous manner (to the - 16 -
Tech emergency temperature), the unit will be switched off permanently. In this case, the device may be started again only by the heat pump's manufacturer servicing crew. V.k) Compressor Delay After the heat pump is switched on, the fan and the pump are activated first and then, after several seconds, the compressor is activated. This setting regulates the compressor switch on delay time after the fan and the pump. When the pump reaches the ECO ECO PLUS threshold, first the compressor is switched off and then the fan and the pump, after the set delay. V.l) LEGIONELLA Function Temperature It is the pre-set temperature during the LEGIONELLA Function (thermal disinfection) duration. V.m) LEGIONELLA Function Duration This function enables the user to define the duration of disinfection (in minutes) in which the pre-set disinfection temperature will be kept at a permanent set level (LEGIONELLA Function Temperature). V.n) LEGIONELLA Function Maximum Duration It is the maximum total duration of disinfection (LEGIONELLA Function) from its activation (regardless of the temperature during the activation). When the tank does not reach the Pre-Set Temperature of Disinfection or does not keep the pre-set temperature during the LEGIONELLA Function Duration, then the controller will return to the basic operation mode after the Maximum Time. V.o) LEGIONELLA Function Reminder This function defines the number of days after which the controller's display will show a message with a reminder of the tank's thermal disinfection. Such reminder may be defined for no more than 90 days (factory setting - 10). If the value 0 is selected, the reminder will be disabled. V.p) Adjusting Servicing Telephone Number This setting enables the user to adjust the servicing telephone number displayed in the user's menu: Information on Maintenance and Version. V.r) Delete Control Temperature Alarm This parameter is protected with an additional code and is closely related to the function Emergency temperature. The protecting lock may be deleted only by the heat pump manufacturer's servicing crew. V.s) Adjusting Access Code This function enables the user to change the access code to the servicing menu. V.t) Factory Settings The controller is pre-configured for operation. However, the user should adjust it to their own needs. It is possible to return to factory settings at any time. When the option Factory Settings is activated, all user adjustments of the heat pump (saved in the user's menu) are lost and replaced by the manufacturer's factory settings. From this moment, the user's heat pump parameters may be defined once again. VIII. Standby Mode After pressing the button Standby Mode on the controller's main screen, the system's executive devices will be disconnected. The anti-freeze function remains active - if the temperature drops below the specified threshold, the heat pump or the heater are activated. This button is used when it is necessary to immediately switch off all devices. IX. Protections In order to ensure the maximum safe and reliable operation, the regulator has several protections. In the case of alarm, a sound signal is activated and a relevant message is shown on the display. In order for the controller to return to operation, the user should press OK on the touchscreen. In alarm, manual operation is possible, but it should be completely ensured whether the user's activities - 17 -
ST 53.1 User s manual do not result in damage. The controller has the following alarm protections: 1. Additional sensor alarm. 2. Control sensor alarm (compressor). 3. Tank sensor alarm. 4. External sensor alarm. NOTE: higher amperage fuse should not be used. Higher amperage fuse should not be used as it may damage the controller. X. Maintenance Before and during the heating season the ST-53.1 controller should be checked for the condition of its cables. You should also check if the controller is properly mounted and clean it if dusty or dirty. Technical data Temperature Adjustment Range 30 o C : 65 o C Power Supply Voltage 230V/50Hz +/- 10% Power Consumption max. 7W Temperature Resistance of Sensors -25 o C : 95 o C Ambient Temperature 5 o C : 50 o C Compressor Output Load 1,1A Fan Output Load 0,6A Pump Output Load 0,5A Heater Output Load 2A Fuse Insert 6,3A - 18 -
Tech Declaration of conformity No 153/2015 The company TECH, based in Wieprz 1047A, 34-122 Wieprz, declares with complete liability that our temperature regulator ST-53.1 230V, 50Hz meets the requirements of the Regulation of the Minister of Economy, Labor and Social Policy (Journal of Laws No 155, item 1,089) dated August 21, 2007, implementing the provisions of the Low Voltage Directive (LVD) 2006/95/EC, the Act dated April 13, 2007 on electromagnetic compatibility (Journal of Laws 07.82.556) implementing the provisions of Directive (EMC) 2004/108/EC, as well as the Regulation of the Minister of Economy dated May 8, 2013 "on basic requirements concerning on the restriction of the use of certain hazardous substances in electrical and electronic equipment" implementing the provisions of Directive ROHS 2011/65/EU. Harmonized standards were used to assess the conformity PN-EN 60730-2-9:2011, PN-EN 60730-1:2012. The product was marked with CE : 01-2015 - 19 -
ST 53.1 User s manual - 20 -