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ST-850

1. User s manual ST 850 zPID _ WWW TECHSTEROWNIKI PL ST 850zPID User s manual H ea 1 Declaration of Conformity No 54 2012 Hereby we declare under sole responsibility that the ST 850 230V 50Hz thermoregulator manufactured by TECH headquartered in Wieprz 1047A 34 122 Wieprz is compliant with the Regulation by the Ministry of Economy Journal of Laws Dz U 155 Item 1089 of July 21 2007 implementing provisions of the Low Voltage Directive LVD 2006 95 EC of January 16 2007 The ST 850 controller has been tested for electromagnetic compatibility EMC with optimal loads applied For compliance assessment harmonized standards were used PN EN 60730 2 9 2011 PN EN 60730 1 2012 aot nmo PAWEL JURA ANUSZ MASTER WEASCICIELE TECH SPI ST 850 z PID User s manual ATTENTION High voltage Make sure the regulator is disconnected from the mains before working on the power supply cable connections device installation etc All connection works must only be carried out by qualified electricians Before activating the controller measure the motor resetting efficiency and inspect wire insulation THE DEVICE MAY BE DAMAGED IF STRUCK BY A LIGHTNING MAKE SURE IT IS UNPLUGGED DURING STORMS yeh ST 850 z PID User s manual 1 Description Active room Pump operation mode thermostat Glock Current flue gas Boiler status Igo temperature PID PRACA ie
2. 2 Weekbased regulation Mode 1 settings Step 1 The user needs to set current time and date first Installer menu Clock Step 2 The user sets temperature values for individual days of the week Set mode 1 Monday Sunday Select specific hours and required deviations from the preset temperature how many degrees the temperature should rise or drop for each day of the week Additionally the preset values can be copied to facilitate the operation Example Monday preset 3 temp 10 C temperature change 10 C preset 4 temp 10 C temperature change 10 C preset 5 temp 10 C temperature change 10 C In such a case if the temperature preset on the boiler is 609C it will drop 109C to 509C between 3 a m and 6 a m on Monday As an alternative to the temperatures being preset separately for individual days the temperatures can also be set collectively in the second mode for the working days from Monday to Friday and the weekend Saturday and Sunday separately Set mode 2 Monday Friday Saturday Sunday Similarly to the previous mode it is necessary to select specific times and required deviations from the temperature preset for the working days Monday Friday and the weekend Saturday Sunday Example Monday Friday preset 3 temp 10 C temperature change 10 C preset 4 temp 10 C temperature change 10 C preset 59 temp 10 C temperature change 10
3. 5 Degrees Wale setpoint temp Temperature monitoring Opening Time This setting is used to set the circuit temperature to be maintained by the mixing valve This is the main temperature based on which the room thermostat reduction function is to be run see Section III a 10 The room thermostat reduction function is set separately for the CH system setting in the user menu and separately for each of the valves III a 3 Temperature control This parameter determines the sampling control freguency of the water temperature downstream of the valve for the central heating or hot water system 13 ST 850zPID User s manual MAIN VALE O Turn Un Walve setpoint temp TEIIFERRHTURE KOHITOKRIM2 3 O Seconds Temperature monitoring Opening Time If the sensor indicates a change in temperature deviation from set point then the solenoid will open or close partially by a preset step to restore the set point temperature III a 4 Opening time FIHIH ee LI Turn On Walve setpoint temp Temperature monitoring Opening Time OFEHIHG TIME 1 0 Seconds You can use this function to set the time for the full opening of the valve that is to say how long it takes to open the valve to 100 This time should be selected according to your valve actuator shown on the nameplate III a 5 Single step Single stroke TE Min opening Valve type Weather sensor 5 Percent You can use this function to set
4. C Saturday Sunday preset 16 temp 5 C temperature change 5 C preset 17 9 temp 5 C temperature change 5 C preset 18 9 temp 5 C temperature change 5 C In this case if the preset boiler temperature is 609C the temperature will drop 11 ST 850zPID User s manual 10 C to 50 C between 3 a m and 6 a m on each day from Monday to Friday However the temperature will rise 50C to 65 C during weekend Saturday Sunday between 4 p m and 7 p m Step 3 The user enables one of two preset modes Mode1 Mode2 or disables the weekly control option Once the mode is enabled the value of the deviation currently set is displayed on the main page of the controller next to the preset central heating system temperature This additionally indicates that the weekly control is active Data deletion function is a simple method to remove all previously saved weekly programme settings to enter new settings II j Room thermostat reduction ROOM DECREASE 1 O Degrees Hoom decrease Fitters menu Service menu Language selection This feature works in conjunction with a two state room thermostat standard controller or a TECH controller The room thermostat reduction parameter specifies the temperature value by which the CH set point is to decrease after the room thermostat is heated up when the set point temperature in the house flat is reached The adjustment range for settings is between 0 and 30
5. EOOM REGULATOR Main Valve Walve 1 Standard room regulator Ualve 2 Room regulator O TECH room regul SOFTHare version With this setting you can disable or enable the correct type of room thermostat with a choice between a standard controller traditional two state type and a TECH controller with RS communication and the ability to change settings for set point temperatures Additionally an option is also available to show the software version of the room thermostat available only for TECH thermostats If you connect the unit to a TECH thermostat you will be able to control and change the set point temperatures of the central heating and hot water systems and the mixing valve Moreover all alerts of the boiler controller will be also displayed With a mixing valve connected to the unit you will be able to view the current outside reading when in the main screen view showing the valve parameters NOTE Do not connect any external voltage to the output of the room thermostat III e GSM module NOTE Controlling of this type is possible after purchasing and connecting to the controller the additional control module ST 65 which is not attached to the regulator as a standard feature The GSM module is an optional device cooperating with the boiler controller enabling remote control of the boiler operation with the use of a mobile phone The User is notified with a text message on each alert of the boiler controll
6. a percentage value for a single step in the operation of valve opening that is to say the maximum percentage value of opening or closing that the valve can move in a single step maximum movement of the valve in one measurement cycle III a 6 Minimum opening MAI VALUE single stroke Min opening Valve type Weather sensor MAH OPERAS E Fercent Use this function to set the minimum value for valve opening value the valve will not close shut III a 7 Type of valve single stroke a CH Min opening amp Floor heating valve Valve Type Weather sensor Below this You can use this option to select the type of valve central heating or 14 ST 850 z PID User s manual floor type III a 8 Weather program weekly valve program WEATHER 3EBMZIOR SET TEMP FOR zO0 0 Single stroke O Turn n O lt O O p Min opening Set temp For 20 LC 39 Degrees Valve type Set temp For 10 C Weather sensor E set Temp For D L In order to enable the weather function an outdoor sensor should be installed in a place not exposed directly to sunlight or weather conditions After installing and connecting the sensor the Weather program function must be enabled in the controller menu For the valve to work properly enter set point temperatures downstream of the valve for the following four intermediate outside temperatures TEMP FOR 20 TEMP FOR 10 TEMP FOR O TEMP FOR 10 Heating curve
7. b 2 Switch on setting as for the main valve see Section III a 1 III b 3 Set point valve temperature setting as for the main valve see Section III a 2 III b 4 Room thermostat AL E Valve Type Weather sensor Return protection Additional Sensors If the valve is to be operated with a room thermostat you should select its type gt module controller traditional two state type from the module standard or TECH controller traditional two state type from the controller TECH algorithm controller RS communication v room temperature difference setting as for the main valve see Section III a 11 v set point change setting as for the main valve see Section III a 11 III b 5 Temperature control Setting as for the main valve see Section III a 3 III b 6 Opening time Setting as for the main valve see Section III a 4 III b 7 Single step Setting as for the main valve see Section III a 5 III b 8 Minimum opening Setting as for the main valve see Section III a 6 III b 9 Type of valve Setting as for the main valve see Section III a 7 spo ST 850 z PID User s manual III b 10 Weather program weather control Setting as for the main valve see Section III a 8 III b 11 Return protection Setting as for the main valve see Section III a 9 III b 12 Additional sensors ale Type Weather sensor Return protection Additional Sensor
8. below the activation temperature minus a DHW hysteresis of 2 C In this particular case the pump will turn off at 36 C at the boiler III j Boiler hysteresis FITTERS MENU BOILER HYSTERESIS HCH pump activation temp a Boiler hysteresis Pp Degrees HH hysteresis Auxiliary pump This option is used to adjust the set point temperature hysteresis of the central heating system It represents the difference between the temperature when the unit enters holding cycle mode and the temperature when it returns to operation 2 ST 850 z PID User s manual cycle mode for example when the set point temperature is 60 C and the hysteresis is 39C the unit will go into holding cycle mode when the temperature reaches 60 C and return to operation cycle mode after the temperature drops to 57 C III k DHW hysteresis FITTERS MENU AJLJ HYSTERESIS HCH pump activation temp a Boiler hysteresis HH hysteresis Auxiliary pump Use this option to set your set point temperature hysteresis at the boiler tank This is the maximum difference between the set point temperature your required temperature for the boiler tank when the pump turns off and the temperature when its operation is to resume Example The set point temperature is 55 C and the hysteresis value is 5 C After the set point temperature i e 55 C is reached the hot water pump will turn off causing the central heating pump to turn on The hot water pump will be switch
9. curve which is used to determine the set point temperature of the controller based on the outside temperature In our controller this curve is established based on four temperature set points selected for their respective outside temperatures Set point temperatures must be provided for the following outside temperatures 209C 109C 09C and 109C The more points there are available for constructing the curve the greater is its accuracy which allows you to determine its shape in a flexible way In our case four points seem to be a very good compromise between accuracy and ease of setting its shape Temperatura zadana za zaworem Xa Xg Xc Xp Temperatura zewnetrzna Where in our controller Xa 209C Xc 09C Xs 10 C Xp 10 C Ya Ya Yc Yo set point valve temperatures for their corresponding outside temperatures Xa Xs Xc Xp After weather control is enabled the valve set point parameter is calculated based on the heating curve By changing this parameter you can decrease or increase all the weather control settings 15 ST 850zPID User s manual III a 9 Return protection MAIN HALE RETIREN FROTECTION Return protection Room decrease O Turn On Er Hin return temperature Tech room control operat Factory settings Max return temperature This feature allows you to enable protection for the boiler from excessively cold water returning from the main circuit which could cause the boiler to
10. drops to 22 C by 1 C the valve will open to such an extent as to have 42 C as a set point by 29C III a 12 Factory settings FIHIH FA TOKOYT ETTIHG Return protection Room decrease Factory settings Tech room control operat Factory settings re UD This parameter allows you to restore the mixing valve settings saved by the manufacturer By restoring the factory settings you will not change the valve type setting central heating or floor type III b Valve 1 FITTERS MENU Main valve Wale 1 Wale Z Room regulator NOTE Control with an additional valve 1 or 2 is only possible after you purchase and connect the controller to an additional control module ST 61 which is not provided as standard equipment with the controller In order to control two valves you need to connect two ST 61 modules The options presented in this chapter are used to adjust the operating settings of an additional mixing valve In order for the valve to work properly and meet your expectations it should be configured with its parameters set like in the case of the main valve LZ ST 850zPID User s manual III b 1 Registration Registration Turn On Valve setpoint temp Room regulator To register an additional valve enter the serial number of the control module of the ST 61 mixing valve servo look for the five digit number on the cover of this module Without this number the valve cannot be activated III
11. settings see Sections III g h When this is so one of the pumps will switch on earlier than the other one but after both thresholds are crossed both pumps will run together The central heating pump will run all the time while the hot water pump will turn off when the boiler tank set point temperature is reached It will turn on again when the temperature drops by the preset HW hysteresis value below its set point II h 4 Summer mode WORKING MODES SUMMER MODE PID DAMPING House heating ne qp Boiler priority O Parallel pumps amp Summer mode Once this function is activated the central heating pump will be off and the DHW pump will turn on above the preset activation temperature see Section III h and will work continuously until the temperature drops below the activation temperature by the hot water hysteresis value or until the following conditions are met 10 ST 850 z PID User s manual boiler temperature 2 C lt boiler tank temperature In summer mode you only enter the set point temperature of the boiler which is also understood to mean the set point temperature of the boiler tank II i Weekly control The function is used to programme daily changes in the boiler temperature The preset temperature deviations are within the range of 10 C MEHU O O LJEEKBAZED REGULATION WEEKBASED REGULATION Fuel type Mode Z settings Manual mode O Mode 1 E Data deleting Working modes O Mode
12. suffer from low temperature corrosion The return protection function works to ensure that when the temperature is too low the valve will close partially until the short circuit of the boiler reaches the desired temperature This feature also protects the boiler from a dangerously high return temperature to prevent water from boiling When this function is enabled you need to set the minimum and maximum return temperatures III a 10 Room thermostat reduction FIHIH HALE ROOY DECREASE O Degrees Return protection Room decrease Tech room control operat Factory settings This function is active only when the unit is operated with a standard or TECH room thermostat When the room thermostat reaches the desired temperature in the house flat reports heated up condition the valve will close to such an extent so that the temperature downstream of the valve drops by the room thermostat reduction temperature NOTE If the installation includes a TECH room thermostat with RS communication four wire cable you may choose an option providing dynamic control for the mixing valve see Section III a 11 III a 11 Operation of TECH thermostat FIHIH RL V E TECH ROI COHTEOL OPERHT Return protection A Room decrease 2 emperature decrease Dynamic changes Tech room control operat E Factory settings Room temp difference Change set This setting is active only if the controller is connected with a TECH room ther
13. supply circuit of CH Location of flue gas sensor The sensor for measuring the flue gas outlet temperature PT1000 made by TECH should be installed in the hole which is located in the upper part of the flue The sensor should be secured it with a screw to protect it from falling out BOILER CONTROLLER SMOKE FLUE GAS SENSOR CONDUIT CH BOILER sobe Additional pump sensor Outside A CZUJNIK E P ST 850 z PID User s manual 29 ST 850zPID User s manual Table of contents iiec T ES 5 HCG IONE UNECE OD S baidare E i i a i a a jaka 7 IL MAIn Doe ania sai iai iii ri i a a EO O rU Mi IE 7 IL D LONNI BIO IN A lai ais ataka i ia a i abana anne 7 TEC SEEN VE TIT ak ee ev ep ed a ka 7 LLA Set polnE CH temperat e cecuasiasaa aaa none i i iii i a oe i aae ua 6a ta 8 II e Set point DHW temperature cccccsececeseuevescuevescuevescusueseucrensuaueneas 8 IL VCH OR Ul a a ERA ND EDI Ran 8 IG Manual OpErAUON sui zajele odi i iii e 9 ITA Pump operation II MOdES 3 422 kxd Gr rd ke mi rekah ale iii Pe Rima 9 LE D4Houseceatlbieuauidu iais a i i i i a a ata a ua oe v 9 Liz Boller tati DEIOFIEV ano eu E HAE OQ dd ea a cos deoa i eb ea 10 EEF PUMPS 1B bDatall lsasisiesircqes pa taut Sau esti ii bvad viva gated Paw per nea 10 ILB 4 Summer MO Ge ae cena rie sadice Sos rk opa i a iii va Pea Rte God pa epi eda 10 II Room thermostat reductlOF sscsewesuwkgscuxa uad spain c aO oec o Pacto e 12 IL K Lang
14. C II k Language selection GETO Room decrease Fitters menu Service menu Language selection Use this function to change the language settings of the controller II I Factory settings FACTORY SETTINGS Factory settings Software version Factory settings re UD The controller is pre configured for its operation However its settings should be modified to meet your individual needs You can return to the factory settings at any time If you enable the factory settings option you will lose all of your own boiler settings which will replaced with the settings saved by the boiler manufacturer From now on you can re set your own parameters of the boiler II m About the program You can use this function to check the software version installed in the boiler 12 ST 850 z PID User s manual Factory settings 4 Software Version controller III Installation menu EN Room decrease Fitters menu Service menu Language selection The functions of the installation menu should be set by the person installing the boiler or service personnel of the manufacturer III Main valve FITTERS MEHI Main Valve Valve 1 Valve Z Room regulator III a 1 Switch on FIHIH VALUE O Turn Omn Vale setpoint temp Temperature monitoring Opening Time This feature allows you to temporarily make the valve inactive III a 2 Set point valve temperature WALYWE SETPOINT TEIPIF x
15. PIT 2 4 HCH disinfection TUESDAY You can use the clock settings to enter the current time and day of the week III n Pulser sensitivity With this setting you can change the sensitivity of the pulser knob within a range from 1 to 3 where 1 means the highest sensitivity III o External sensor adjustment FITTER MEHL EXT SEHSOR CORRECTION Ext sensor correction Degrees HEW disinfection The external sensor is to be adjusted during installation or after prolonged use of the thermostat if the outside temperature displayed deviates from the actual one Adjustment range 10 to 10 C III p Boiler tank disinfection FITTERS MEHU HCl DISINFECTION Clock O Tuno Ext sensor correction DisinFection temperature HEH disinFection E Duration oF disinFection Max time reheating The purpose of the operation of thermal disinfection is to increase the temperature to a value required for disinfection min 60 C throughout the DHW circuit The latest regulations impose an obligation to modify DHW installations in such a way as to allow for periodic thermal disinfection to be carried out at a water temperature not lower than 60 C with 70 being recommended The pipes fittings and technical system used for the preparation of hot water must meet this requirement The purpose of hot water system disinfection is to eliminate the bacteria Legionella pneumophila which causes reduction in the cellular immunity
16. boiler temperature sensor disconnecting the fan and the feeder in the event of exceeding the alarm temperature 85 C Its activation prevents the water in the installation from boiling in the event when the boiler overheats or the controller is damaged After activation of this protection when the temperature goes down to a safe value the sensor will unlock automatically and the alarm will be deactivated In the case of damage or overheating of this sensor the fan the and feeder will be disconnected V b Automatic sensor control In the event of damage of each of the sensors the sound alarm is activated additionally signalling the defect on the relevant display e g CH sensor damaged The feeder and the blow in is disabled The pumps operate according to the set temperatures regardless of alarms In the case of damage of the CH sensor or the feeder the alarm will be active until the sensor is replaced with a new one If the HUW sensor is damaged one should press the menu button which will turn off the alarm and the controller will return to the one pump CH operation mode In order to ensure that the boiler will be able to work in all modes the sensor must be replaced with a new one 29 5 ST 850zPID User s manual V c Temperature protection The regulator has an additional protection in the event of damage of the bimetallic sensor After exceeding the temperature of 85 C the alarm is activated signalling the following o
17. d 192 Current boiler n ES Current HW temperature EE TEE temperature set point HW temperature Set point boiler temperature Fan 9o PUMPS CH HW circulating or valve valve calibration Standby mode EXIT PULSER KNOB The ST 850zPID temperature controller is designed for use with central heating boilers It controls the following units central heating CH water circuit pump domestic hot water DHW pump circulating or valve pump mixing valve and fan Optionally control functions can be also provided for two additional mixing valves via ST 61 modules The ST 850zPID controller is a unit with a continuous output signal using a modified PID control algorithm In this type of controller the blowing power is calculated by measuring the boiler temperature and the flue gas temperature as measured at the outlet of the boiler The fan is run continuously and the blowing power depends directly on the measured temperature of the boiler the flue gas temperature and the difference between these parameters and their set points The advantages of a modified PID controller include the ability to maintain a stable set point temperature without any unnecessary overshoot or oscillations When using this type of controller equipped with a flue gas outlet sensor fuel Savings can be achieved from a few percent up to around 15 percent with the output water temperature kept at a very stable label resulting in longer life of the
18. ed on again when the temperature drops back to 50 C III 1 Additional pump FITTERS MENU AUXILIARY PUMP HCH pump activation temp a Boiler hysteresis O Circulation pump HH hysteresis amp Ualue pump Auxiliary pump Settings You can connect an additional pump circulating or valve type When your pump has been connected and depending on its type you need to configure the appropriate settings 1 Settings for circulating pump You need to enter settings for a daily cycle of pump activation or downtime with an accuracy of 30 minutes To make setting the daily cycle of pump operation and downtime easier you can copy your selected time interval to the next After setting your operation schedule you need to set the times when the pump is to run and be idle while your pre selected time interval is active If necessary you can also quickly remove previous settings to facilitate entering settings for new intervals 2 Settings for valve pump This option allows you to select the operating mode of the pump The pump will be switched on always pump running all the time regardless of temperature above threshold the pump will turn on above a pre set activation temperature If the pump is to be turned on above a threshold then you should also set a temperature for pump activation threshold temperature measured at the CH sensor 23 ST 850zPID User s manual III m Clock FITTERS MENU SET TIME Ext mU correction
19. emperature measurement range C 0 90 8 Measurement accuracy C 1 9 Adjustable temperature range C 45 80 10 Temperature resistance of sensors C 25 90 11 Temperature resistance of flue gas sensor C 25 480 12 Fuse element A 6 3 VII Assembly NOTE Installation should be performed by a properly qualified technician Do not install the unit with the power on make sure that the plug is disconnected from the mains NOTE Incorrect wiring may damage the controller The controller cannot be operated in a closed central heating system The installation must include safety valves pressure valves and an equalizing tank to protect the boiler from water boiling in the central heating system VII a Controller wiring connection diagram Prosz zwr ci szczeg ln uwag podczas monta u okablowania sterownika Uwag nale y zwr ci na prawid owe pod czenie przewod w uziemienia 27 ST 850zPID User s manual Location of thermal sensor and boiler sensor The thermal sensor is a thermometal sensor that is to be positioned next to the boiler temperature sensor in the capillary or the supply pipe of the CH circuit as close to the boiler as possible FLUE GAS FLUE GAS EXHAUST EXHAUST POWER SUPPLY OF HEATING INSTALLATION a CH SENSOR ES TERMIC SENSOR f Hec X BOILER tah aR 5 4 CONTROLLER teda CONTROLLER CH SENSOR CENTRAL HEATING Montage in capillary of boiler CH Montage into power
20. er and by sending an appropriate text message at any time he or she receives a return message with the information on the current temperature of all sensors After entering an authentication code it is also possible to remotely change the set temperatures The GSM module can also operate independently from the boiler controller It 20 ST 850 z PID User s manual has two inputs with temperature sensors single contact input for use in any configuration detecting short circuit opening of contacts and one controlled output e g possibility to connect additional contactor to control any electrical circuit When any temperature sensor reaches the preset deactivation temperature maximum or minimum the module will automatically send a text message with such information It is similar in the case of a short circuit or opening of contact input which may be used e g for simple protection of property o ji MODULE O Turn Un FITTERS MEHU GSM module Internet Module Software version Room regulation device CH pump activation temp If ST 408 controller is equipped with an additional GSM module in order to activate this device it is required to start the activated option MENU gt Installer menu gt GSM module gt Activated III b Internet module NOTE Controlling of this type is possible after purchasing and connecting to the controller the additional control module ST 500 which is not attached to the
21. exchanger boiler As the flue gas temperature at the boiler outlet is controlled this results in low emissions of dust and gases that are harmful to the environment The thermal energy of the flue gas is not wasted and released into the chimney but is instead used for heating Below we present the results of tests conducted with the use of the Tech controller with PID control ST 850zPID User s manual SUPPLY TEMPERATURE RETURN TEMPERATURE I FLUE GAS TEMP x10 C TEMPERATURE C TIME HOURS and the same controller without PID control a0 SUPPLY TEMPERATURE RETURN pti ZEN ME B E L lrLusEs GAS TEI 10 NW MW TT NANA A NANA AWA NW iM E DAWN WANN PN m EH TEMPERATURE C TIME HOURS I a Basic concepts Lighting cycle that lasts until the flue gas temperature reaches a specific value provided that it does not drop below this value for 30 seconds factory setting for lighting time Operation after the ighting procedure is completed the controller will go into operating cycle mode and the display will show the message PID OPERATION This is the main operating status of the controller in which the blower function is run automatically and fuel is supplied automatically based on the PID algorithm oscillating around the user s set point temperature If the temperature suddenly rises by more than 5 C above its set point va
22. he operation of the room 21 ST 850zPID User s manual FITTERS MENU LM module Internet Module Room regulation device B CH pump activation temp thermostat e Off the status of the room thermostat will not affect other settings Boiler after the room thermostat reports a heated up condition the set point boiler temperature will be lowered for detailed settings see Section II 15 CH pump after the room thermostat reports a heated up condition the CH pump will be turned off for detailed settings see Section II 15 CH PUMP ACTIVATION TEMP III h ida d auus activation temperature GSM module Internet Module 38 Degrees Room regulation device CH pump activation temp Use this option to set the activation temperature of the CH pump temperature measured at the boiler The pump will start to run above the pre set temperature The pump will be switched off when the boiler temperature drops below the activation temperature minus a hysteresis of 29C III i DHW pump activation temperature FITTERS MENU HCW PUMP ACTIVATION TEMP HL pump activation temp amp Boiler hysteresis 38 Degrees HH hysteresis Auxiliary pump Use this option to set the activation temperature of the DHW pump temperature measured at the boiler The pump will turn on and run depending on your selected mode of operation above a pre set temperature e g 38 C The pump will be switched off when the boiler temperature drops
23. i a i i i a d dca a k 18 UEDA SINJI STO Diane a ae ue a a eh pne og tans Rana 18 LE 5 8 Mini MUN O DENA A sai iii iii i iii i i a ai 18 MEDO TYPO VAMO vrana iii si kan dubi nA UE i i ii r i a ii 18 30 ST 850 z PID User s manual III b 10 Weather program weekly valve program 19 IIL D 11 Return PO ELO ssspesusi bikini Pai Es anes dud aa aa i i 19 III b 12 Room thermostat reduction mme menn nn 19 III b 13 Operation of TECH thermostat eeeeeernnn nme 19 MECA PNG mT 20 HELD ROOM IE NOS a ii io aaa dud ar A a pad Gu i 20 III E GSM module kaka kaka aaa a aaa aaa aaa aaa a aaa aaa aaa aaa aaa aaa aaa 20 III g Room thermostat eguipment kaka aa aaa a aaa a aaa a aaa aaa 21 III h CH pump activation temperature aaa 22 III i DHW pump activation temperature mnn nnn 22 III j Boiler hysteresiS nnnm aaa aaa aaa aaa aaa aaa aa 22 MLK DHW AV as S a P rr PPP EAEE E 23 POLE Li T T a A a o a o o o 25 Va NEMA PO ENE i FU Viri OMM 25 V b Automatic sensor control sseesseesseennee enema nnns 25 V C Temperature Protection ccccccccevecccuecerecucceuueeeuesuceeuceseuesucesuasnuaegs 26 V d Protection against boiling of water in the boiler 26 V e Control of the outlet flue gas temperature enn mnn 26 APENIL r Tm 26 VL MIE WING Loss o ini ii
24. i ii Badia V8 UP RUN RR Ha aa RUF i OUR RO UR 27 VIL ASS MD iais ai i iii ii ai i ai i i i a eee 27 VII a Controller wiring connection diagram kaka aaa aaa aaa aaa 27 Se eee ieee We are committed to protecting the environment Manufacturing electronic devices imposes an Obligation of providing for environmentally safe disposal of used electronic components and devices Hence we have been entered into a register kept by the Inspection For Environmental Protection The crossed out bin symbol on a product means that the product may not be disposed of to household waste containers Recycling of wastes helps to protect the environment The user is obliged to transfer their used equipment to a collection point where all electric and electronic components will be recycled 31 User s manual 3 nw 51 050 zPID All faults should be reported to TECH Sp j Wieprz 1047A 34 122 Wieprz Tel 48 33 8759380 48 33 8705105 48 33 8751920 48 33 8704700 Fax 48 33 8454547 serwis Otechsterowniki pl Monday Friday 7 00 16 00 Saturday 9 00 12 00 WWW TECHSTEROWNIKI PL
25. ing pump begins to run above the pump activation temperature factory set at 38 C see Section O ST 850zPID User s manual III g The pump will turn off below this temperature minus a hysteresis of 29C BOILER FRIGRITY FID DAMPING amp Boiler priority P cm 25 Parallel pumps E 45 O Summer mode In this mode the boiler tank hot water pump will be switched on first to run until the set point temperature is reached see Section II e after which the pump will be turned off and the CH circulating pump will be enabled The central heating pump will run all the time until the boiler tank temperature drops below its set point by the hot water hysteresis value At that moment the CH pump will turn off and the HW pump will turn on both pumps operating alternately In this mode the fan and the feeder are run only up to 62 C as measured at the boiler instantaneous set point so as to prevent overheating of the boiler NOTE he boiler must be fitted with check valves on the central heating and hot water pump circuits The valve mounted on the hot water pump is to prevent drawing hot water from the boiler tank II h 3 Pumps in parallel LJORKIHO MODE PARALLEL FUrFS House heating a Boiler priority j cm 25 amp Parallel pumps 45 O Summer mode In this mode both pumps begin to run together in parallel above the pump activation temperature However these temperatures may vary for each pump depending on your
26. lue so called monitoring mode is activated Monitoring mode this mode will start automatically if during any time that the controller is in operating cycle mode the temperature rises by more than 5 C above its set point value If this happens in order to lower the circulating water temperature the controller will switch over from PID control to manual settings as per parameters set in the Installation menu Monitoring mode and the display will show the message PID MONITORING Shutting off if the flue gas temperature drops below a specified value and does not rise above this value for 300 seconds factory setting for shutting off time the controller will go into shut off mode In this mode the blower and feeder will stop running and the display will show the message PID SHUT OFF If there is power failure the thermoregulator will stop working 6 ST 850 z PID User s manual When power is restored the controller will resume operation at its pre set parameters restored from its built in memory No saved thermoregulator parameters are lost when there is power failure II Controller functions This chapter describes the functions of the controller how to change its settings and navigate its menus II a Main page During normal operation of the controller the graphic display shows the main page Depending on the operating mode its corresponding main screen is displayed see Section II C To move to the first level menu p
27. lve gt valve 1 displays the operating parameters of additional valve 1 ST 850zPID User s manual CQ CH screen ia Main valve Valve 1 C Uslye Z FLOOR HEHTIHE O CH screen amp Main valve C Jale 1 O Hale 2 Service screen this view is not accessible to the user It is a special screen view for use only by the manufacturer Input entry code 0000 The screen view can be also changed directly from the home page by pressing EXIT NOTE To enable the views showing valve parameters the respective valves must be pre installed and configured properly by a installation fitter II d Set point CH temperature LCD NE i CH TEMPERATURE L Firing up Screen CH temperature HH Temperature This option is used to adjust the set point temperature of the boiler You can change the boiler temperature within an adjustable temperature range of 45 C to 85 C The central heating set point can be also changed directly from the controller main screen by turning the pulser knob II e Set point DHW temperature GI MEER WL TEMPERATURE L Firing up Screen CH temperature HH Temperature This function allows you to set your required set point temperature for domestic hot water You can adjust this temperature within a range from 30 C to 60 C II f Type of fuel This option is used choose one of three types of fuel coal fines or wood for burning in the boiler For each type of fuel chosen a suitable o
28. m the flue the display will show an exclamation mark instead of the current flue gas temperature This will cause the controller to enter emergency mode In this case only the boiler temperature will be taken as input The controller will be controlled only with the boiler sensor and the modified PID function will continue to run without the flue gas sensor which will significantly deteriorate the accuracy of temperature control V f Fuse The regulator has a WT 6 3A tubular fuse insert protecting the network Using a fuse with a higher value can cause damage to the existing controller ATTENTION The fuse of higher value should not be used Assembling the fuse with a higher value may cause damage to the controller VI Maintenance The ST 850zPID controller must be checked for the technical condition of its wires before and during the heating season You should also check the mounting of the controller clean it of dust and other contamination Furthermore you should also measure the effectiveness of the grounding of the motors central heating 26 ST 850 z PID User s manual pump hot water pump and blower TECHNICAL SPECIFICATIONS Pos Specifications Unit 1 Power supply V 230V 50Hz 10 2 Power consumption W 11 3 Ambient temperature C 5 50 4 Max load on circulating pump outputs A 0 5A 5 Max load on mixing valve output A 0 5A 6 Max load on fan output A 0 6A 7 T
29. mostat with RS communication and allows a choice in how the thermostat is to work together with the mixing valve 2 temperature reduction when you select this mode after heating up the house flat to your reguired temperature set point temperature the TECH room thermostat will lower the set point temperature of the valve by the pre set room thermostat reduction value see Section II a 10 gt dynamic changes when you select this mode after heating up the house flat to the set point temperature the TECH room thermostat will work as per 216 ST 850 z PID User s manual the following settings gt Change in valve set point This setting determines by how many degrees the valve temperature is to increase or decrease with a single unit change in room temperature This function is closely related to the Room temperature difference parameter gt Room temperature difference This setting is used to define the single unit change in the current room temperature accurate to 0 1 C at which there is to occur a specific change in the set point temperature of the valve Example setting Room temperature difference 0 5 C setting Change in set point valve temperature 1 C setting Set point valve temperature 40 C setting Set point room thermostat temperature 23 C Case 1 If the room temperature rises to 23 59C by 0 59C the valve will close to such an extent as to have 39 C as a set point by 19 C Case 2 If the room temperature
30. n the display Temperature too high Despite damage of the bimetallic sensor the controller receives information on the current temperature in the boiler from the electronic sensor In the case of exceeding the alarm temperature the fan is turned off and at the same time both pumps begin to operate in order to distribute hot water across the house installation V d Protection against boiling of water in the boiler This protection is applies only to reboiler priority operation mode When the set reboiler temperature is e g 55 C and the actual temperature in the boiler increases up to 62 C this is the so called the priority temperature then the controller will turn off and the feeder the fan If the temperature in the boiler still increases up to 80 C the CH pump will be activated When the temperature still increases then the alarm will be activate at the temperature of 85 C Most often such a condition may appear when the reboiler is damaged the sensor is improperly fitted or the pump is damaged However when the temperature drops then at the threshold of 60 C the controller will turn on the feeder and the blow in and will run in the operating mode until the temperature of 62 C is reached V e Control of the outlet flue gas temperature This sensor is used to continuously monitor the outlet flue gas temperature In the case of sensor failure or in the event of the sensor getting unplugged from the controller or pulled fro
31. of the body The bacteria often reproduce in standing hot water reservoirs their optimum temperature is 35 C which often corresponds to the conditions present in boiler tanks When this feature is enabled available only in Boiler tank priority mode the boiler tank is heated until it reaches the user s pre set disinfection temperature and maintains this temperature for disinfection time e g 10 minutes and then it returns to normal operation 2702 a ST 850 z PID User s manual From the moment the disinfection function is enabled the disinfection temperature must be reached within a time no longer than the disinfection heating up time otherwise this function will be deactivated automatically DISIHFE TIOH TEMPERATURE DURATION OF DISIHFECTIOH MAS TIME REHERTIHG 0 Degrees 10 Minutes 60 Minutes IV Service Menu MEM Room decrease Input entry cade Fitters menu Language selection To access the servicing functions of the ST 850 controller you must enter a four digit code This code is known to the boiler manufacturer and the company Tech V Protections To ensure maximally safe and unfailing operation the regulator has a number of protections In the case of an alarm a sound signal is activated and an appropriate message is shown on the display To make the controller return to operation press the pulse generator V a Thermal protection It is an additional bimetallic mini sensor located at the
32. peration mode for the fan is selected to match the actual process of combustion in the boiler 8 2 ST 850 z PID User s manual Fuel type Manual mode Working modes Heekbased regulation Manual mode Working modes Weekbated regulation For your convenience the controller is equipped with a Manual operation module When this function is active each actuator blowing central heating pump hot water pump additional circulating or valve pump can be switched on or off independently and each active mixing valve can be closed opened or stopped MAHUAL MODE MAHUAL MODE MANUAL MODE Blow Force P J Auxiliary pump O Fan gt Main valve O CH pump Valve 1 O HH pump Malye Z You can start the motor of your selected device by pressing the pulser The device will remain activated until the pulser is pressed again Additionally an option to control the blowing power is available where you can set any fan speed in manual mode BLON FORCE Fuel tupe Manual mode Working modes Heekbased regulation This function allows you to select one of the following four boiler operation modes II h 1 House heating WORKING MODE HOUSE HEATING FID DAMPING 3 Gm 25 m House heating O Boiler priority Parallel pumps Sm 45 ool Summer mode When you select this option the controller switches over to a mode where heating is provided only to heat the central heating circuit The central heat
33. regulator as a standard feature The Internet module is a device enabling remote control of the boiler over the Internet or local network On the home computer screen the user controls the condition of all boiler system devices and the operation of each device is presented in the animated form Apart from the possibility to view the temperature of every sensor the user has the possibility of introducing changes of the set temperatures for both the pumps and the mixing valves After activating the Internet module and selecting the DHCP option the controller will automatically download such parameters from the local network as IP address IP Mask Gateway address and DNS Address In the case of any problems with downloading network parameters of the existing network there is a possibility of setting these parameters manually The method of obtaining local network parameters has been described in the instructions for the Internet module INTERNET MODULE OTun n sd IP Address Reset Module Password Advanced settings FITTERS MENU GSM module Internet Module Room regulation device CH pump activation temp The function Reset module password may be used when the User on the login page has changed the factory user s password to his or her password When a new password is lost it is possible to return to the factory password after resetting the module password III g Room thermostat equipment This feature allows you to program t
34. ress the pulser knob The display shows the first four menu options To access more options turn the knob To select a function press the knob To change parameters follow the same procedure For your changes to be entered it is necessary to confirm them by pressing the pulser at CONFIRM If you do not want to make any changes within a given function press the pulser at CANCEL To exit the menu use the EXIT key If necessary you can use the standby mode button located on the controller housing to rapidly turn off all actuators This is an additional safeguard feature for use in an emergency situation that allows you to power down all controller actuators fan pump valve NOTE Power is not disconnected from the controller when it is in standby mode II b Lighting Blowing With this function you can easily light the boiler After you light an initial area an automatic lighting cycle will be activated With the PID function ensuring the selection of optimal parameters the boiler will smoothly enter its operating mode II c Screen view MENU O Firing up E CH temperature HH Temperature You can use this function to select one of four thermoregulator operation main screens CH screen displays the current mode of operation of the boiler HOUSE HEATING FID DAMPING 3 GEB 26 CH screen O Main valve O Valve 1 Gam 55 mil Ox O Ualue 2 gt main valve displays the operating parameters of the main va
35. s When two mixing valves are used and you select this function you will be able to select the sensors from which temperature data are to be retrieved for a valve for return and outside temperature sensors Temperatures can be retrieved from the sensors of the valve being set Own or as per the controller sensors Main controller III b 13 Room thermostat reduction Setting as for the main valve see Section III a 10 III b 14 External sensor adjustment Factory settings Wale removal The external sensor is to be adjusted during installation or after prolonged use of the thermostat if the outside temperature displayed deviates from the actual one Adjustment range 10 to 10 C with an accuracy of 1 C III b 15 Factory settings Settings as for the main valve see Section III a 12 III b 16 Valve removal Hoom decrease Ext sensor correction Factory settings This function is used to completely remove a valve from the controller memory Va ve removal is used for example when removing or replacing a module the new module requires to be registered again 19 ST 850zPID User s manual III b 17 About the program When this option is selected the display will show the software version of the active valve module III c Valve 2 FITTERS MEHU Main Valve Uzlys 1 Room regulator All settings for valve 2 are made in the same way as in the case of valve 1 III d Room thermostat FITTERS MEHI
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