User's Guide
Contents
1. 12 or magnet valve Central heating 9 7 Technical data Rated supply voltage 230V 50 60Hz Rated current commutated 250V 50 60Hz Number of output contacts three switching Differential temperature 2 20 Sensors Pt1000 50 to 250 C Current through the sensor 2 6 mA Measuring range 20 to 120 C Indication graphical LCD display Measurement unit Lu Humidity 0 80 Level of Protection IP 20 Table 1 PARAMETERS Setpoint the temperature dT difference between the panel 2 20 C 10 C and the water tank Setpoint the temperature dT difference between the boiler 2 20 C 10 C and the water tank Setpoint water tank temperature to which it can normally be vv E Tbset heated by solar panels and ERA RC MIS boiler Critical maximum temperature TDmax in the heater A Iso for the 80 100 C 95 buffer if used Minimum water tank temperature below which the E Tbmin d is terminated on the HORS an panel Maximum temperature of the s o Minimum temperature of the at which defrost n allows the solar panel pe Setpoint boiler water Tkset temperature to which is 30 90 C 60 C ier pump 2 Maximum boiler water owe we Minimum boiler water Protective boiler temperature 5 Tkaer below which turn on a pump 2 a Setpoint temperature for the buffer or pool only used when 25 90 C 40 Heaters Opt 32. Differential Temperature sensor Tk Thermostat DT 3 3 Temperature sensor Tb1 Circulation pump 1 L1 OOOO oo CO 000 O PE NE SEL E L2 L3 J Circulation JN Electrical pump 2 L2 heating entra heating element switch Sicca Es PT working heater thermostat BT block heater thermostat With two pumps for water tank and heating Rather than pump 2 can be installed solenoid valve or a two way valve with motor actuator Temperature sensor Tk Temperature sensor Tp Temperature Solar sensor Tb2 Panel L1 S SOOO oOG Tp Tbi Tb2 Tk 29 NL Differential Thermostat DT 3 3 Temperature sensor Tb1 Circulation j pump 1 L1 OOD C6 es N Circulation PE N L gu pump 2 L2 Central heating 5 or magnet valve ay Electrical gt ial heating circulation pump T element switch BT Central heating PT working heater thermostat BT block heater thermostat C Heating a second heating boiler electric instead electric heaters mounted a third pump N Q o uv Ll 2 c fU A a Temperature sensor Tk Temperature sensor Tb1 Central heating circulation pump Temperature sensor Tp OG Tb1 Tb2 Differential Thermostat DT 3 3 Circulation et N m Circulation PE NL E L2 213 2
3. 90 The default setting is 60 2 4 Tbmax critical maximum temperature in the heater Set in the range from 80 to 100 C The default setting is 95 C 2 5 Tbmin minimum water tank temperature below which the defrost is terminated on the panel Do not set The default setting is 20 C 2 6 Tpmin minimum temperature of the solar panel Set in the range from 20 to 50 The default setting is 40 C 2 7 Tpmax maximum permissible temperature of the solar panel Set in the range from 80 to 110 C The default setting is 105 C 2 8 defrosting temperature of the solar panel Set in the range from 20 to 10 Default without defrosting 2 9 Tkset boiler water temperature at which the pump 2 will turn without monitoring differential only if the corresponding option is selected Set in the range from 30 to 90 C The default setting is 60 C 2 10 TKmin minimum boiler water temperature Set in the range from 20 to 50 C The default setting is 40 C 2 11 Tkmax maximum boiler water temperature Set in the range from 80 to 100 C The default setting is 95 C 2 12 Tkger temperature of the boiler water under which is turn a pump 2 continuously the purpose to prevent freezing of the water in the pipes Do not set The default setting is 10 C 2 13 Tputt Set temperature to a second tank buffer tank or pool It is used only when it is selected Heaters Opt 3 see point 4 2 Set in the range
4. Table 2 OPTIONS indication on the default the user description display setting setting Vacation Mode Vacation OFF The turn on of the pump 2 will be made by Pump 2 ON dT2 differential Tkset set boiler water temperature 1 electric heaters turn on when the pumps are not working 2 are turn on regardless of pumps 3 Opt3 heaters are not used the output is used for the third pump Freez Def Frost protection of solar panels Table 3 ICONS image ske Function antifreeze is activated Overheating of the solar panel 1 The temperature in the tank is above the maximum Temperature in the boiler is above the maximum Heaters Opt The temperature in the boiler is below 10 C turned Pump 1 turned Pump 2 turned Pump 3 nya no Pump 3 is ised Notes 11 7 Warranty The warranty period is 24 months following the purchase date of the unit or its installation by a qualified staff but not exceeding 28 months after the production date The warranty is extended to the malfunctions that occur during the warranty period and are result of the production reasons or defective used parts The warranty does not relate to malfunctions corresponding to not qualified installation activities directed to the product body interference not regular storage or transport The repairs during the warranty period can be done after correct filling of the manufacturer warranty card
5. of 25 to 90 C Default 40 C When any of the temperatures higher than 120 C and is not connected temperature sensor of the display shows hi When one of the temperatures is lower than 20 C or has a bridged temperature sensor is displayed on the display low The operation of the thermostat is defined according to the status of the sensors as follows A Normal modes Conditions defining the operation of pump 1 At a temperature in the lower part of tank Tb lower than the set and positive difference At between the temperature Tp of the panel and the bottom heater more than the set dT1 by 2 C is turn a pump 1 is carried heating of heater from the panel If in the process of heating the boiler At equals the set dT turns off pump 1 relay output 1 The heating is done until the temperature at the bottom of the tank Tb equals with set Tbset then the pump is switched off If the above conditions of the panel temperature drops below Tpmin the pump operation is prohibited however that there may be Aty gt dT 2 C and Tb Tbset If the temperature of the solar panel drops below pump 1 turn on enforcement although it was off because of temperatures below Tpmin only if option enabled for defrosting If the previous regime tank temperature drops under Tbmin the pump turns off as is terminated defrost panel Conditions defining the pump 2 operation At a temperature in the lower pa
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7. INTIEL PROGRAMMABLE DIFFERENTIAL THERMOSTAT DT 3 4 INTIEL warming 4 USER MANUAL Pomorie Peter Beron 9 Str tel 0596 33366 fax 0596 32580 www intiel com e mail intiel unacs bq TECHNICAL DESCRIPTION 1 Application Differential thermostat is integrated in systems for preparing domestic hot water into boilers heated by combination by boiler solar panels and electric heaters Designed to manage the work of two circulation pumps installed in Water circuit between the panels and serpentine the boiler Water circuit between the boiler and the second serpentine of the boiler In this way regulate heat exchange therebetween It is possible to include a third pump to regulate the heat exchange between the solar panels and a second tank buffer tank or pool 2 Operation The thermostat has four temperature sensors mounted respectively in the heater solar panels and boiler The process works with the following parameters 2 1 At set and actual temperature difference between the panel and the boiler dT1 can be set within the range of 2 to 20 The default setting is 10 C 2 2 dT2 At set and actual temperature difference between the boiler and the heater dT2 can be set within the range of 2 to 20 C The default setting is 10 C 2 3 set temperature in the heater to which it could reasonably be heated by solar panels boiler electric heaters Set in the range of 25 to
8. buffer vessel reaches 3 Front panel On the front panel are the control elements and programming These are graphical LCD display LED display and three buttons button up button down and button SET Appearance of the front panel is shown in Figure 1 warning AO wv INTIEL 3 LJ Differential Thermostat Figure 1 3 1 Graphic LCD display with a resolution of 128x64 pixels 1 provides information on the current temperature measured by the sensors Figure 1 1a state information system shown by icons fig 1 1b see Table 3 Ability to adjust the controller by user menu fig 1 1c Figure 1 1a 3 2 LED 2 indicates abnormal conditions 3 3 Buttons 3 buttons to adjust the controller 4 Programming After power supply the thermostat automatically established reset which shows the temperature the tank solar panel and boiler and system status by icons 4 Enter the menu of the controller By pressing and holding the SET button for more than 3 seconds With the up and down to navigate forwards and backwards in the menu Change the selected item by pressing of a button SET A when the value is changed after pressing the button SET value start flashing changing it is done by pressing up or down Confirm the selected value again with SET 4 2 Options Vacation On and off mode Vacation Mode is designed for cases where tank is not used for a long time When activated the tempe
9. ectrical connection Electrical connection involves connection of sensors mains power pumps and electrical heaters according to Figure 2 The sensors are a type Pt1000 o c T d H 7 b 2 2 Figure 2 pump pump 2 If necessary connecting cables of the sensors be prolonged Recommended length that does not affect the measurement is to 100m Terminals 16 17 are input to the sensor in the solar panel Terminals 18 19 are input to the sensor at the bottom of the water tank Terminals 20 21 are input to the sensor on top of the water tank or secand water tank or swimming pool Terminals 22 23 are input to the sensor in the boiler Terminals 1 4 5 8 and 9 shall be conected accordingly protective ground zero phase power supply At terminals 10 12 and 14 are respectively connected to pump 1 pump 2 and the electrical heaters which starting phase L1 L2 and L3 At terminals 11 13 and 15 out phase L1 L2 and L3 when terminals 10 12 and 14 not out and vice versa 6 Hydraulic connection Example of a system with one heater system with 2 tank buffer tank swimming pool Heated by solar panels boiler and electrical heaters A Heatingt water tank with boiler solar panels and electric heaters With a common pump tank and heating Temperature sensor Tp Temperature Solar sensor Tb2 Panel Gs II 95959599S O SNP O O Tb2 Tk L
10. rature of the water heater is set at 40 C and the inclusion of electric heaters is terminate Pump 1 turns as necessary in order avoid overheating the water heater or the panel This mode does not affect the operation of the pump 3 where the controller is used with the selected option Heaters Opt 3 Pump 2 ON With option dT2 management of pump 2 becomes differential temperature between the water heater and the boiler With option Tkset pump 2 turns following an assigned temperature without monitoring the differential difference Heaters When selected Opt 1 electric heaters switch when no pump running for more than 15 minutes and compliance with the conditions of point 2 When selected Opt 2 heaters shall switch on independently of whether they have turned a pump as long as the conditions specified in point 2 When selected Opt 3 electric heaters are not used In this case Tb2 sensor can be mounted in the second boiler buffer tank or pool and to relay output 3 to include a third pump to the solar system Freez Def Enables or disables the function for defrosting the panel Default data Returns the default set of manufacturer Save amp Exit Save Settings from the menu When not changed settings is done only output from the menu If a period of 15 sec no buttons are pressed it should automatically exit the menu as the changes are not saved in memory In this case they will be valid until it is stopped power 5 El
11. re Tb in the second heater below the setpoint and panel temperature Tp as well as a positive difference Ata between the temperature Tp of the panel and the second heater larger than the set dT by 2 C turn on a pump 3 But only in cases where there is no running pump 1 Heating is performed while the temperature Tb equals the set Tpyrr then the pump is switched off If the conditions for their turn on of pump 1 work pump 3 is terminated In this way the heating of the first heater is given priority B Alarm Modes If in the process of heating the heater the temperature of the panel exceeds Tpmax pump I and the pump 3 if used will be forced the purpose cool the panels This is done despite the temperature at the bottom of the tank Tb can exceed TDget If in the process of heating the heater the temperature of the boiler exceeds TKmax pump 2 and the pump 3 if used is force for cooling of the boiler This is done despite the temperature at the bottom of the tank Tb4can exceed TDget If at the above conditions temperature in the lower part of the heater reaches the critical maximum value Tbgax pump 1 is turned off although this may result to overheating of the panel n this way the temperature in the boiler has a higher priority to the temperature of the panel In this case operation of the pump 2 also terminate When using a third pump it is switched off when the temperature of the water in the
12. rt of tank Tb lower than the setpoint and a positive difference At between the temperature Ty of the boiler and the lower part of the heater more than the set dT by 2 C turn on a pump 2 and is carried to the heating heater from the boiler If in the process of heating the heater Atz declining after Atz align the set dT2 turn off the pump relay output 2 The heating is done until the temperature at the bottom of the tank Tb equals with setpoint Tbset then the pump is switched off If the above conditions the boiler drops below TKmin the pump operation is turn off however that there may be At 5 5dT 2 C and Tb Tb If the boiler temperature drops below Tkgef pump 2 is force although it has been turned off because of temperatures below Tkyin 4 Conditions determining the operation of electric heaters on the tank If the temperature at the top part of tank Tb is lower by 15 C than the set Tbse is allowed heating by electric heaters to reach the TDget relay output 3 Does this happen when there are no conditions for the pumps and heaters to work independent of the pump select the option Heaters in the menu see section 4 2 Conditions determining the operation of pump 3 With option Heaters Opt 3 see section 4 2 the controller is configured to work with a third pump that is connected to the relay output 3 instead of electric heaters and Tb sensor is mounted in the second tank At a temperatu
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