User`s Guide
Contents
1. INTIEL THE ELECTRONICS ON YOUR SIDE Electrical boiler controller INT0140 User s Manual tel 00359 596 333 66 fax 00359 596 325 80 info intiel com lll www intiel com 9 Peter Beron Str Pomorie 8200 Bulgaria 1 Technical description The present manual describe the operation principle and functionality of electrical boiler controller managing nominal capacities of up to 60kW providing general control of the parameters of one water heating installation in relation to environment conditions 1 Operation The Controller regulates the water heating system by affecting to the following components e Electrical heating elements and Circulation pump In fact the main principle of the operation is based on a regulation of the capacity of the heating elements in relation to the temperature in the heated premises rooms The control is provided by step regulation of the heating element capacity of 2 kW respectively 4 kW when the capacity is bigger than 30 kW by means of changing the number of switched on heating sections The controller is consisted of Basic control module electrical boiler module that is equipped with built in weekly programmer and boiler regulator The boiler module can operate independently without room thermo regulator e Module for temperature measurement and assignation in the heated premises that in fact is a room thermo regulator with or without outer weekly programmer The Boiler Controller operate2. being defined automatically Order for setting in Time menu Adjustment of the present day of the month DD month MM year YY day of the week DOW The symbol in a field starts blinking during entering the day of the week as its changing is to be done by means of INCR button Weekly programmer function deactivation and activation By means of keeping pressed SET button in menu Pr N Y it starts blinking as by means of INCR button it is being changed respectively to Pr N as the function is deactivated and even having an adjusted program it will not be fulfilled Pr Y the function is activated The confirmation is to be done by means of SET button Way for setting the two week programs Pr 1 and Pr 2 Setting the starting time beginning of the interval for a start of the boiler operation setting the stopping time beginning of the pause interval days of the week during which the program will be activated It can be selected all days of the week only working days holiday ones as well without selected days as in this case the program will not be activated If at one program the time for starting stopping of the boiler coincided then the stopping has a priority In case the time for starting regarding two programs is same then a valid one remains the assignation of the first program For example P1 time ON time OFF valid is OFF tel 00359 596 333 66 IIl fax 00359 596 325 80 Ill info intiel com lll www inti
3. Bulgaria Indication about equi thermal curve type of the room thermostat or selected manual mode for adjustment of Tset Button OFF AUTO It switches on the system boiler in heating or long stay mode Button INCR It changes the values and options in the menu Button SET for selection and confirmation Light indication about week program position 2 It is being indicated in case of active period of the week program Light indication about the state of the circulation pump position 3 It is being indicated when the circulation pump is switched on Figure 1 Room thermore gulator Two positional digital display It shows the current or assigned air temperature at the place where it is mounted The indication is in degrees centigrade Button ASSAIGNED CURRENT temperature It shows the assigned temperature which the system try to keep in the premises or the present one Knob for defining of the desired temperature Operation mode and functions 3 1 OFF regime It is used during continual boiler stop It can be chosen by the button AUTO OFF on the front panel When the Controller is in OFF regime the heating elements are switched off The room thermostat does not affect to the general operation but it measures and shows the real room temperature Also during that regime the circulation pump starts for 10 minutes a day in order to avoid its blocking due to a fur accumulating Generally the OFF regime is approp
4. ching is provided by connection to the next power supply phase in order to ensure an symmetrical electrical circuit loading Switching of more than one section will be performed consecutively and each next one will be connected with 3 sec delay in relation to tel 00359 596 333 66 fax 00359 596 325 80 Ill info intiel com www intiel com 3 9 Peter Beron Str Pomorie 8000 Bulgaria the previous one In this way it can be provided smooth loading or unloading of the circuit avoiding any current rushes In case of switched on at least one electrical heating section on the display appears symbol 2 3 5 REGULATION The regulation of the heating capacity is fulfilled by room thermo regulator outdoor temperature and adjusted equi thermal curve or manually by fixing Tset As much as the real temperature becomes closer to the boiler one more heating sections will be switched off In case both temperatures are equalized there will be kept the necessary number of heating elements that is to provide the desired temperature level 3 6 Weekly programmer It defines the operation and stop time periods according adjusted program 4 PROTECTIONS 4 1 Thermal protection of the boiler body It is provided by electro mechanical emergency thermostat which boundary temperature level is not adjustable and it is preliminary fixed by the manufacturer REACTION heating elements will be switched off by force in case its fixed boiler temperature will be e
5. controller adjustment and programming is to be fulfilled by means of buttons INC and SET B means of button INC is to be selected see point 2 1 e Sett adjustment of the assigned temperature in the water tank Tbset when it is being used a system with a domestic hot water preparation Max water temperature in the boiler body Tkmax Type of the room thermostat selection of equi thermal curve manual assignation of the necessary water temperature in the boiler body Time adjustment of date and time Pr N Y switches the function weekly programmer Pr 1 adjustment of weekly program 1 Pr 2 adjustment of weekly program 2 Press SET button for at about 3 sec to start the adjustments as the relevant value will start blinking The change of the values can be done by means of INC button as the confirmation of the desired one by pressing SET button note date and time values do not blink during their changes Order of setting within Sett menu 1 Setting the water tank temperature Tbset In case of need for domestic hot water preparation 2 Setting the max level of the boiler water temperature Tkmax 3 Selection of the regulation way Equi thermal regulation and selection of a curve EQ Line see Table 2 Type of the room thermo regulator TR Type see Table 3 Manual assignation of the boiler water temperature Manual 4 Adjustment of Tset in case of manual assignation In all the rest cases Tset is
6. e insulation and it has to be selected in relation to the curve number from Table 2 The range from 20 up to 20 C is to be selected about premises with small heating losses where the hottest temperature of the heating water is being reached when the outdoor temperature drops to 20 C Temperature ranges from 5 up 20 15 10 5 0 5 20 to 20 and 0 up to 20 are being adjusted for premises with big heat C losses as warehouses halls etc where highest temperature of the heating water is being reached when the outdoor temperature drops down to 5 or 0 C The default setting is from 20 up to 20 C curve 6 The outdoor temperature sensor is to be mounted at the outer north part of the building in a way that it is not exposed to direct sun shine or other way of heating radiation which can affect to the correct measurement of the sensor 5 5 The controller can be equipped with a domestic hot water temperature sensor as it provides domestic hot water preparation as the control is being provided by the implemented thermostat in the controller In this case the number of switched on electrical heating elements depends on the difference between the assigned Tbset and current water tank temperature Tb The current domestic hot water temperature is being indicated on the display at the place of Tset as reaching the assigned water tank temperature is with a higher priority than the heating 6 Programming The
7. el com 6 9 Peter Beron Str Pomorie 8000 Bulgaria P1 time ON P2 time ON valid is PI ON II Electrical connection 1 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 11 1 12 Terminals Figure 6 Terminal about circulation pump connection X14 Its is being used for connection of the circulation pump with operation supply voltage 220V 50Hz and nominal current up to 8A Terminal for connection of proportional room thermo regulator X9 It is being used for connection of proportional room thermo regulator with three core cable 3x0 75mm2 X9 1 current signal 0 20mA X9 2 common terminal The power supply of the thermo regulator is being provided by terminal X7 2 for 16V DC as jumper J3 is to be fixed preliminary in position 2 Terminal for a connection of a contact room thermo regulator X12 Terminal for domestic hot water preparation X11 Terminal for a connection of water tank temperature sensor X10 type Pt 1000 non polar one Terminal for a connection of outdoor temperature sensor X7 type Pt 1000 non polar one Jumper J3 is to be fixed preliminary in position 1 Terminal for a connection for boiler water temperature X6 type Pt 1000 non polar one Terminal for a connection of water level sensor in the boiler body X8 IH Terminal for a connection of overheating blocking thermostat Terminal for a connection of operation power supply 220V 50Hz X4 Terminal for a con
8. er tank water temperature in the 40 90 C 90 C boiler body Tk Current temperature in the A boiler body ERE Outdoor temperature Assigned temperature in the boiler body Manual assignation 30 90 C 30 C Equi thermal regulation Domestic hot water Self preparation Proportional calculated thermo regulator During equi thermal regulation the outdoor Toutdoor temperature corresponding to 2 10 the highest temperature of water in the boiler body heating water see table 2 Table 2 T outdoor min with equithermal regulation r From 10 up 10420 o From 20 up to 20 Table 3 Room thermo regulator type tel 00359 596 333 66 fax 00359 596 325 80 info intiel com lll www intiel com 9 9 Peter Beron Str Pomorie 8000 Bulgaria Notes VI Warranty The warranty period is 24 months following the purchase date of the unit or its installation by an authorized Engineering Company 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 Warra
9. mperature is kept bellow 15 C When the protection against overheating is activated the protection against freezing is blocked 5 Equipment versions and operation characteristics 5 1 Equipped with a built in weekly programmer and without a room thermostat The built in weekly programmer defines the time intervals for the boiler operation and its pause in relation to the selected program During the operation interval the boiler assignation is adjusted manually as the fixed temperature is constant During the pause interval the controller assignation is 20 OC that means switched off heating elements Concerning the present equipment version with a built in weekly programmer and without a room thermostat it is recommended the installation of thermostatic valves in each of the heated rooms in order to obtain an individual temperature regulation for each of them The temperature of the boiler water is to be defined manually by the costumer and it does not relate to the outdoor temperature but the thermostatic valves affect to the controller and the electrical capacity by fixing the dose of the consumed heating capacity During an operation interval the boiler keeps the water temperature level permanent by variable capacity percentage The main disadvantage of this equipment version is that due to the manual setting the water temperature can be not enough or redundant high for following the room temperature assignation fixed by thermostatic valves The
10. nection of electrical heating elements X2 X3 and X5 The phase is to be connected to the heating elements through relays as the other terminals of the heating elements are to be connected to neutral The nominal current trough each of those outputs is 16A Terminal J1 figure 6 This terminal is being used for connection of 20 core wire from the front panel 2 2 1 2 2 Jumpers Jumper J3 The position of this jumper defines if the boiler is to operate together with room thermo regulator placed in position 2 or with outdoor temperature sensor and equi thermal regulation placed in position 1 see figure 6 Jumper J4 The protection against low water level of the boiler body is activated when the jumper is placed in position 1 as when the jumper is in position 2 then this protection is deactivated tel 00359 596 333 66 fax 00359 596 325 80 info intiel com lll www intiel com 7 9 Peter Beron Str Pomorie 8000 Bulgaria m REL1 mm cpm ue ome S m Le LED15 Brel TI m Li BEEN Tapmop i Ag 2 T za 1 TEEH FE Lu m RELS REL10 REL12 Fi LJ REL15 Cape 8 EN Tr tel 00359 596 333 66 fax 00359 596 325 80 Ill info intiel com www intiel com g 9 Peter Beron Str Pomorie 8000 Bulgaria Parameters and settings E D Customers Tbset Assigned temperature in the 30 60 C 40 C wat
11. nty Card Manufacturer INTIEL Product type Electrical boiler controller INTO140 Production number Production date Dealer confirmation Purchase date Invoice number Dealer s name address and stamp Seller s name and signature tel 00359 596 333 66 fax 00359 596 325 80 info intiel com lll www intiel com 10 9 Peter Beron Str Pomorie 8000 Bulgaria
12. operation regime can be seen on the diagram on Figure 2 t s t 20 t s 5 2 With an outer weekly programmable thermo regulator like CM 51 Honeywell tel 00359 596 333 66 fax 00359 596 325 80 info intiel com lll www intiel com 4 9 Peter Beron Str Pomorie 8000 Bulgaria The programmable weekly thermo regulator is to be installed in the heated premises defining the time periods of operation and the pause of the boiler in relation to the temperature in the premises During the operation interval the number of switched on electrical sections respectively the boiler water temperature depends on the time in which the room thermo regulator will be kept in ON or OFF as in relation to that the switching of the electrical heating elements is to be done in 3 min only if the difference between the present and max assigned boiler water temperature is grater than 9 C The status of the thermoregulator is being indicated on the display During the pause interval the boiler assignation is fixed at 20 C It can be fixed thermostatic valves in all rooms of the heated premises except this one where the weekly programmable thermostat is mounted In case there is installed thermostatic valve in this room also it must be opened to its maximum level in order to avoid the influence to the weekly programmable thermostat operation The temperature of the boiler water is to be fixed anually and it does not correspond
13. riate during long stop boiler operation even during the winter There is no risk of water freezing in the systems due to all activated protections Going into OFF regime can be done by means of pressing and keeping the button for about 3 sec then the button is to be released as on the display at field a appears a notification about the relevant operation mode In case of switched on electrical elements during this mode it starts their smooth stopping On the display appears symbol 3 after the last electrical element is being switched off 3 2 AUTO regime It provides a regular heating operation and it can be selected by the front panel button AUTO OFF The heating element operation is provided by the selected program by means of the weekly programmer or by a signal of the room thermostat 3 3 Circulation PUMP The pump is started when at least one heating section is switched on or the boiler water exceeds 40 C The circulation pump goes on operation until the accumulated energy in the boiler will be transmitted to the radiators until boiler temperature reaches 40 C The pump will be started by force when the boiler temperature drops bellow 15 C in order to pass the whole water volume in the system through the boiler temperature sensor The pump operation is being indicated with symbol 1 at position 3 of the display 3 4 ELECTRICAL HEATING ELEMENTS The maximal number of heating element sections is 15 Their in serial swit
14. s as a proportional capacity regulator in compliance with the temperature In fact that allows using that part of the installed capacity necessary for keeping the desired temperature level without over expenditure of the electrical energy surplus The previous mentioned principle avoids any water temperature fluctuations in the electrical boiler during the fixed operation regime that extends the life expectancy of the water heating components and increases its safety 2 Regulation and signalization 2 1 Front panel figure 1 The front panel is a LCD display with a resolution of 128x64 position 1 a 6 a days of the week are indicated in this field as the current one is underlined The same field is B being used to show control indications about emergency situations or about OFF regime WER 6 Present time The same field is being used to indicate the start of the periods operation and stop of the boiler during setting of the weekly program B Menu r Current operation capacity of the boiler switched on circulation pump 1 switched on electrical heating elements 2 activated OFF regime 3 overheating thermostat 4 low water level in the boiler body 5 the boiler body temperature water is bellow 15 C 6 tel 00359 596 333 66 fax 00359 596 325 80 Ill info intiel com www intiel com 2 9 Peter Str Pomorie 8000
15. tatic valve in this room it must be opened to its maximum level During each of the operation intervals of the program the boiler operates in the fixed regime and a maximal adapted water temperature in order to keep the assigned by the room thermo regulator boiler temperature The room temperature variation indirectly affects the boiler temperature assignation as during autumn and spring there is no excessive heating as during the winter it is enough The over expenditure is eliminated and this version is the most economical one keeping the recourses of the installation Its operation is shown on Figure 4 t s E _____ METER TL ui Sas ER pet 2 tr tes t s i 20 i i t s tel 00359 596 333 66 fax 00359 596 325 80 info intiel com lll www intiel com 5 9 Peter Beron Str Pomorie 8000 Bulgaria 5 3 With equi thermal regulation and built in weekly programmer In this case the controller operates without a room thermo regulator The water boiler temperature is being adjusted according the outdoor temperature sensor The assignation of the water boiler temperature starts increasing with decreasing of the outdoor temperature within defined range starting from 20 C The water boiler temperature reaches its max level Tkmax at the lower boundary level of the equi thermal range Toutdoor min see figure 5 The desired equi thermal curve depends on premis
16. to the room temperature The thermostatic valves affect to the Boiler Controller and the electrical capacity by fixing the dose of the consumed heating capacity and the room temperature affects to the duration of the operation boiler intervals The advantage of thisversion is the convenient control of the boiler directly from the room and the disadvantage is the frequent switching of the boiler in order to keep the room temperature in accordance with the assigned level The operation of the heating installation can be seen on the diagram bellow Figure 3 25 C 18 C testes PC 15 fuc d umet 27 wee SS t s tk 7s ak SEE PAM du ey E uo 9 PE 2 1 AME 4 Py Ta dy g 3x 20 C t s 5 3 With proportional room thermo regulator and built iifBWEkBy programmer The proportional room thermo regulator is to be installed in one of the heated rooms and the built in weekly programmer located on the indication panel of the Controller assigns the weekly program for a boiler starting and stopping During the operation interval the assignation of the Boiler Controller is variable It is received by a signal of the room thermo regulator and depends on the difference between the assigned and real boiler temperature It can be fixed thermostatic valves in all rooms of the heated premises except this one where the room thermo regulator is mounted In case there is an installed thermos
17. xceeded The circulation pump will continue working for 10 minutes and will stop after that On the display appears symbol 4 OVERHEATING The thermal protection cannot be restored by itself It has to be restored manually only after eliminating the reason about its activation 4 2 Protection against low volume of the water content in the boiler body Due to different reasons the water volume in the boiler and whole heating system can be decreased because of evaporation leakages and so on and the water level in the boiler body to be decreased bellow the admissible level for boiler proper and safety operation REACTION All heating elements and the circulation pump will be switched off after activating of the above mentioned protection As a result of that protection on the display appears symbol 5 LOW WATER LEVEL The protection waits for 40 seconds after restoring the water volume and afterwards smoothly switches on the necessary heating elements 4 3 Protection against freezing the water in the boiler pipes and radiators It is being activated only in OFF regime REACTION The circulation pump starts by force and constantly to operate if the boiler water temperature drops bellow 15 C Symbol 6 appears on the display All heating elements will be switched on smoothly 100 if the boiler water is bellow 6 C and that operation will continues until the temperature exceeds 9 C Then the heating will be switched off smoothly while the water te
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