Related Manuals for Thermona THERM EL 8
Summary of Contents for Thermona THERM EL 8
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Page 1: Operation And Maintenance
Operation and Maintenance Manual for Electric Boilers (user manual) version: February, 2008 THERM EL 8 THERM EL 15 THERM EL 23 THERM EL 30 THERM EL 38 THERM EL 45... -
Page 2: Table Of Contents
WARRANTY AND RESPONSIBILITY FOR DEFECTS..............31 DOMESTIC HOT WATER STORAGE TANK HEATING MODE ..........31 THERM EL 8, 15, 23 BOILER ASSEMBLY (KW) ................33 THERM EL 30, 38, 45 BOILER ASSEMBLY (KW) ................34 WALL-MOUNTING OF THE BOILER ....................35 BOILER DIMENSIONS AND CONNECTION.................. -
Page 3: General Use
2. General use The construction of THERM-EL electric boilers is designed for hot-water heating systems with induced water circulation. They can be installed in central or individual-storey heating with induced circulation sealed or open systems and they are characterized by an environmentally friendly operation without requirements for venting of the combustion product. - Page 4 thermostat (disjunction of the controlling circuit relay and heating bars) and thus the boiler shut-down occur when the temperature reaches 105°C. Shall the emergency thermostat become disconnected, the boiler can be only put back into operation by an authorized service engineer. Another protection of the boiler is assured by a pressure switch which disengages the control circuit when the heating system water pressure decreases (when there is not enough water in the heating system).
- Page 5 ♦ Brief characteristics of the main merits of THERM-EL electric boilers: Simple and intuitive operation The control is designed in a simple, understandable and unambiguous way. Simple operation is also enabled by way of a three-digit LED 7-seg display complemented by an unambiguous signalling system of a series of LEDs. Pump protection against clogging Regular spinning of the pump (once every 24 hours) prevents potential clogging of the pump during an extended boiler down time.
- Page 6 control enables the boiler to operate in a low tariff rate and thus significantly reduce energy costs. Maximum boiler output can be limited in the service menu if the operation must proceed also outside the so-called “low tariff”. !!! Shall other ways of installing the MRC receiver be applied the output of which is one of the phases (MRC/L1 -L3), it is necessary to assure transmission to the R level (reset conductor) by means of e.g.
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Page 7: Technical Data
4. Technical data Lower performance series: THERM EL 8 THERM EL 15 THERM EL 23 Nominal heat output 22.5 Rated current El. components degree of shielding Power voltage / frequency V/Hz 3 x 230 + N + PE/50 Max. rated current... -
Page 8: Basic Instructions For Boiler Installation
♦ Manufacturing control All boiler parts are checked and correctly set by the manufacturer prior to final assembly. Each boiler is tested on water circuit tightness and the function of the regulating and safety components is set and tested as well. - Page 9 boiler is installed in the permitted zones, relevant electric current accident protection must be concurrently performed in accordance with the same standard, too. The installation location must be chosen which will allow sufficient access for the operator as well as service inspector.
- Page 10 mount a heating system charge and discharge cock and a sludge cock at the lowest point of the system in the very proximity of the electric boiler separate all electric boiler types on inlet and outlet by stop valves, too (see standards CSN 06 8030), not to be forced to discharge the whole system in case of inspection or repair of the boiler or during filter replacement remove control levers from stop valves and secure them against manipulation.
- Page 11 Non-observance of the aforementioned requirements results in cancellation of the undertaking for the damaged components! ♦ Choice of the regulating and controlling components The boiler is fitted with basic regulatory and safety elements as the following electric diagrams show. Therm-EL boilers can regulate their outputs. They are equipped with their own PID regulation which does not allow heating over the set temperature.
- Page 12 Heating water temperature [°C] Outdoor temperature [°C] Regulation according to room of reference Used in family houses. Only temperature of a selected room is monitored on the basis of which the entire flat environment is regulated. Other rooms with diverse heat losses will be heated to different temperature unless further thermoregulating knobs are not installed on the radiators.
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Page 13: Boiler Operation
6. Boiler operation Description of the control panel: Control panel is simple and intuitive and displays the boiler functions. The panel uses colour-coding and graphical division of the heating and DHW preparation sections. LEDs positioned between the buttons for setting the temperature higher/lower (up/down arrows) are turned on if the particular mode is selected (i.e. - Page 14 7x LED indication for the selected functions LED display Heating temperature DHW temperature setting setting ° C ° C ° C ° C HDO bar HDO bar ° C ° C buttons buttons SELECT SELECT (MENU) (ENTER) (MENU) (ENTER) Heating heating on/off on/off...
- Page 15 ♦ Menu parameters It can be always selected (in the user menu by the diS / P3.2 parameter) whether the item is displayed in the numerical format (more suitable in foreign language versions of the automatic control system) or in the mnemotechnical format (closer to the Czech language).
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Page 16: Boiler Control And Display Of Basic Operational Information
P6.2 MULTIPLE BOILER FORMAT (CASCADE) CONTROL PARAMETER h.01-h.21 ERROR HISTORY DISPLAY i.01-i.12 SERVICE AND DIAGNOSTIC INFORMATION PARAMETERS SET FOR THE MASTER CASCADE BOILER P7.1 NUMBER OF BOILERS IN THE CASCADE P7.2 SYSTEM CASCADE PUMP DECELERATION P7.3 BOILER PUMP DECELERATION, IN THE CASCADE, AFTER ITS HEATING OPERATION IS FINISHED P7.4 CASCADE SYSTEM ANTI-FREEZE PROTECTION FREEZE... - Page 17 ♦ DHW temperature display If any other variable is displayed at the moment (heating water temperature, output, error message etc.), pressing any of the buttons 2 opens the DHW temperature dialogue. This display is indicated by the °C pilot light above button 4. In the case of sensor defect or absence, the numerical data become replaced with dashes: _ _ _ during disconnection or interruption of the sensor or wiring, ¯...
- Page 18 ♦ Signal indication of the mass remote control (MRC) The presence of the MRC signal is indicated by the HDO (MRC) pilot light. If it is turned on, it means that the full boiler input is allowed. Reduction of the boiler input by way of MRC signal can be set in the service menu by means of the Ph¯ (P4.4) item. ♦...
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Page 19: User Menu
♦ Displaying the instantaneous boiler output If you press (or double press) the (SELECT) button (5), the display dialogue of the instantaneous boiler output opens. This dialogue is indicated by the letter P in the first position of the display. The output is shown in kW (P.2.5 =2.5 kW, P.18 = 18 kW etc.). - Page 20 Group 2: Integrated room thermostat parameters An integrated room thermostat can control heating operation according to the data from internal temperature sensor. It uses proportional control to set the outlet water temperature within the range defined by the tdr (P2.3) parameter: - if TM <...
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Page 21: Putting The Boiler Into Operation
connected. In the case of a defective sensor or if it is not connected, the boiler is controlled in the tEr (like at P3.1 = 1) mode. otP 4 Heating is controlled by external regulator which is connected by way of the OpenTherm Plus interface. - Page 22 Electric boiler operation is very simple and fast and does not require any special qualification. The boiler can be nevertheless controlled only by adults who have been demonstrably explained the boiler function and operation. This demonstration must be performed by the worker who carried out the installation and set the boiler into operation.
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Page 23: Diagram For Serviceable Connecting Charge Pressures Of Heating Water
♦ Boiler shut-down You can switch off the boiler for a shorter period by pressing the 0/1button or potentially by the room thermostat switch. If you want to shut the boiler down for an extended period of time outside the heating season (i.e. during summer holiday), it is suitable to switch off the boiler by the external main circuit-breaker (switch) unless there is a potential risk of system freezing or pump clogging (these functions are naturally not available during the complete boiler shut-down). -
Page 24: Therm El Boilers Connection To The Power Supply
11. Therm EL boilers connection to the power supply ♦ Therm EL 8 boiler connection to the power supply Safety thermostat REKREL Circulation pump REKCPU REKZOB Cascade REKAS1 VENTIL N TUV TO Three-way valve Contact functions: 1/ contacts of the Room thermostat must be permanently connected during the boiler operation 2/ contacts of the “blocking element”... - Page 25 ♦ Therm EL 15 connection to the power supply Safety thermostat REKREL Circulation REKCPU pump REKZOB Cascade REKAS1 VENTIL N TUV TO Three-way valve...
- Page 26 ♦ Therm EL 23 boiler connection to the power supply Safety thermostat REKREL Circulation REKCPU pump REKZOB Cascade REKAS1 VENTIL N TUV TO Three-way valve...
- Page 27 ♦ Therm EL 30 boiler connection to the power supply Safety thermostat REKREL Circulation REKCPU pump REKZOB Cascade REKAS1 VENTIL N TUV TO Three-way valve...
- Page 28 ♦ Therm EL 38 boiler connection to the power supply Safety thermostat REKREL Circulation REKCPU pump REKZOB Cascade REKAS1 VENTIL N TUV TO Three-way valve...
- Page 29 ♦ Therm EL 45 boiler connection to the power supply Safety thermostat REKREL Circulation REKCPU pump REKZOB Cascade REKAS1 VENTIL N TUV TO Three-way valve...
- Page 30 ♦ 2 Therm EL cascade format...
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Page 31: Warranty And Responsibility For Defects
In such situations the service organization can ask the user to reimburse the repair. THERMONA spol. s r.o. guarantees the correct operation of the boiler for the period of 24 months after it has been first put into operation. - Page 32 superior position with regards to heating and the maintenance of the set temperature always proceeds without time limits (with the exception of the MRC signal). Shall the temperature in the storage tank fall below the set value, the boiler system three-way valve position is set preferentially and the boiler water heats up the external indirect heating DHW storage tank.
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Page 33: Therm El 8, 15, 23 Boiler Assembly (Kw)
14. THERM EL 8, 15, 23 boiler assembly (kW) 1 – Boiler frame 2 – Pump 3 – Safety valve 4 – Pressure sensor 5 – Discharge valve (1/2") 6 – Boiler heat exchanger 7 – Emergency thermostat (the sensor is placed in the cup together with the temperature sensor) 8 –... -
Page 34: Therm El 30, 38, 45 Boiler Assembly (Kw)
15. THERM EL 30, 38, 45 boiler assembly (kW) 1 – Boiler frame 2 – Grundfos pump 3 – Safety valve 4 – Pressure sensor 5 – Discharge valve (1/2") 6 – Boiler heat exchanger 7 – Emergency thermostat (the sensor is placed in the cup together with the temperature sensor) 8 –... -
Page 35: Wall-Mounting Of The Boiler
16. Wall-mounting of the boiler 17. Boiler dimensions and connection 1 – Recuperative water inlet - Therm 8, 15, 23 - ¾´´ - Therm 30, 38, 45 - 1´´ 2 – Heating water outlet - Therm 8, 15, 23 - ¾´´ - Therm 30, 38, 45 - 1´´... -
Page 36: Record Of Repairs And Annual Inspections
18. Record of repairs and annual inspections Performed operation Contractual org. Customer signature Date of record Warning regarding the disposal of the packaging and the product after the end of its service life-time All applied materials comply with the requirements specified in Section 10 of the Act No. 185/2001 Coll. and Section 6 of the Act No. - Page 37 Technical incpection: date: ..................stamp and signature: ............... THERMONA, spol. s r. o. Stará osada 258, Zastávka u Brna, 664 84 Czech republic Phone: +420 544 500 511 fax: +420 544 500 506 thermona@thermona.cz...
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