Thermona THERM EL 15 Operating Instructions Manual Download

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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

Summary of Contents for THERM EL 15

Page 1: ...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: ...9 PUTTING THE BOILER INTO OPERATION 21 10 DIAGRAM FOR SERVICEABLE CONNECTING CHARGE PRESSURES OF HEATING WATER 23 11 THERM EL BOILERS CONNECTION TO THE POWER SUPPLY 24 12 WARRANTY AND RESPONSIBILITY FOR DEFECTS 31 13 DOMESTIC HOT WATER STORAGE TANK HEATING MODE 31 14 THERM EL 8 15 23 BOILER ASSEMBLY KW 33 15 THERM EL 30 38 45 BOILER ASSEMBLY KW 34 16 WALL MOUNTING OF THE BOILER 35 17 BOILER DIMENS...

Page 3: ...d with thermal insulation Heating water inlet on which a circular pump is mounted is welded at the bottom part of the boiler A lug located in the upper part of the vessel is adjusted to the cup for the boiler temperature sensor and emergency thermostat Heating water outlet and threaded sleeve pieces are also located in the upper part of the vessel Heating bars up to 6 are screwed in the sleeve pie...

Page 4: ... three way valve NTC temperature sensor or a storage tank thermostat optional connection of an external NTC sensor integrated equitherm regulation connection of an NTC temperature room sensor automatic controlling system as a room regulator integrated safety switch contactor for all output phases possibility of an intelligent cascade boiler connection format up to 32 boilers with smooth output mod...

Page 5: ...ars in case of emergencies and detected incorrect conditions for further details see auto diagnostics of the automatic control system and prevent a potentially dangerous situation from occurring Boiler cascade connection format option The boiler electronics enable connection of up to 32 boilers into a single intelligent cascade which modulates the performance ranging from minimum output of the fir...

Page 6: ... boilers provide a wide range of boiler settings according to specific conditions of operation or based on customer requirements The option of setting various outputs for the heating water and heating of DHW undoubtedly offers positive financial effects The possibility of setting different outputs with the MRC signal switched on or off provides the user with a pleasant heat comfort External energy...

Page 7: ... 32 Dimensions height width depth mm 805 475 235 Boiler weight without water kg 39 5 42 5 45 5 Higher performance series THERM EL 30 THERM EL 38 THERM EL 45 Nominal heat output kW 30 37 5 45 Rated current A 44 55 66 El components degree of shielding IP 40 Power voltage frequency V Hz 3 x 230 N PE 50 Max rated current A 3 x 48 3 x 60 3 x 72 Wiring main circuit breaker A 50 A 63 A 80 A Rated current...

Page 8: ... we suggest that the design is elaborated by an expert Performance of an expert installation by an authorized service organization is always the precondition for warranty provision by the manufacturer Connection to the electric network and the wiring can be carried out only by an expert worker qualified in line with the Czech Decree No 50 1978 Coll Installation location must be chosen for the elec...

Page 9: ...w through the boiler must be constantly assured for the designated boiler output at maximum thermal gradient of the heating system amounting to 20 C Any reduction of this flow due to integrated high hydraulic friction elements results in insufficient circulation and drop in life time of some boiler parts To utilize the maximum output of the heat exchangers ensure correct functioning and high durab...

Page 10: ...erminals shall be connected together and the power wiring matched with the U V W and PE terminals If MRC is connected to the boiler control box the MRC receiver outlet is matched with the terminal marked HDO N 1 WARNING When using the MRC receiver signal on the HDO N terminal it must be made sure that all contactor coils of other appliances e g of the boiler if it is connected to the common MRC si...

Page 11: ...r when other high power input electrical appliances e g flow through water heater washing machine dish washer stove etc are connected to the network Such a device is rules out the necessity of purchasing a high capacity main circuit breaker which also means the payment of a high lump fee If a part of the electric boiler needs to be disconnected the tripping device becomes connected to the terminal...

Page 12: ... the first boiler to the sum of maximum outputs of all boilers REKAS 1 interface not included in the delivery package needs to be installed in both master and slave boilers The master boiler is in addition fitted with a master regulator selection of the master and slave boiler is done in the service menu MRC mass remote control Mass remote control MRC enables transmission of electricity as well as...

Page 13: ...uired DHW temperature is set in a similar fashion by the DHW temperature setting buttons The five LEDs below the main display show the variables which are currently set or indicated on the 3 digit display if the LED C TOP or TUV is on the display shows the temperature of water in the heating or DHW circuits if the LED IN OUT C is on the display shows the temperature of the outdoor or room temperat...

Page 14: ...anual reset directly on the thermostat E 07 OUTDOOR ROOM TEMPERATURE SENSOR DEFECT E 08 reserve E 09 PRESSURE SENSOR DEFECT analogous pressure sensor E 10 COMMUNICATION PROBLEM between boilers in the cascade master boiler E 11 COMMUNICATION PROBLEM between boilers in the cascade slave boiler past defects register 1 20 Apart from the E 06 defect emergency thermostat temperature becomes exceeded all...

Page 15: ...nly to the service engineer with the authorization of the manufacturer rtU P3 3 DHW TUV HEATING OPERATION MODE temperature probe thermostat to_ P3 4 LOWER LIMIT FOR THE HEATING WATER TEMPERATURE SETTING to P3 5 UPPER LIMIT FOR THE HEATING WATER TEMPERATURE SETTING tU_ P3 6 LOWER LIMIT FOR THE DHW TEMPERATURE SETTING tU P3 7 UPPER LIMIT FOR DHW TEMPERATURE SETTING PSt P4 1 START OUTPUT Pt P4 2 MAX ...

Page 16: ...play showing the desired heating water temperature you can set the desired value Faster flashing of the C pilot light above button 3 indicates the setting process The desired temperature value can be set by means of buttons 1 within the range defined by TO_ a TO P3 4 a P3 5 items in the service menu The set value does not need to be confirmed The mode of setting the desired value terminates 15 sec...

Page 17: ...tEr EtE Prt otP or ot P3 1 1 5 Switching the DHW heating on or off The DHW heating mode can be switched on or off by pressing the O I ENTER button 4 The on mode is signalled by the pilot light between buttons 2 the pilot light is off if the DHW is in the off mode The DHW heating can be switched on only if its operation has been pre set in the service menu the rtU item must be set to b_n or b_c P3 ...

Page 18: ...HW heating is not possible in the b_c storage tank with sensor mode and it is possible in the b_n storage tank with thermostat mode For further details see the rtU parameter for the operation of the DHW heating in the service menu If the respective temperature setting is selected lower dashes _ _ _ are displayed if the sensor or wiring have been disconnected or interrupted upper dashes are display...

Page 19: ...ter temperature depending on the outdoor temperature The selection of parameters for the calculation depends on the specification of the binary NU night moderation If NU is disconnected the following is true the desired heating water temperature value 20 outdoor temperature Et1 20 ET2 If NU is connected the following is true the desired value of heating water temperature 20 outdoor temperature Et3...

Page 20: ...of the desired outlet water temperature value takes place The setting range falls between 2 and 10 C step of 1 C leading value is 3 C tdF P2 4 Difference hysteresis between the shut down and repeated initiation of heating when the desired room temperature has been exceeded The setting range falls between 0 25 and 2 50 C step of 0 25 C leading value is 0 5 C Complete heating shut down occurs if the...

Page 21: ...anual this is a basic precondition for acknowledgement of the warranty It is further strictly forbidden to interfere with any of the sealed parts inside the boiler Warning The settings of the boiler output range and other parameters must be in compliance with the technical data Any excess loads or incorrect use of the boiler can cause damage to its components Warranty does not apply to the compone...

Page 22: ... discharging small amounts of the liquid through the discharge cock assuring that also sediments at the bottom of the boiler vessel are washed out Switch off the boiler after the end of the heating season by the circuit breaker It is recommended to start the boiler for roughly 30 seconds every month to spin the pump outside the heating season Minimum water pressure at the circular pump inlet must ...

Page 23: ...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 10 Diagram for serviceable connecting charge pressures of heating water Warning The curves of serviceable charge pressures of heating water are calculated for Grundfos 15 60 pumps to the higest regulation grade THERM EL Charge pressure 100 150...

Page 24: ...stat DHW sensor Outdoor temperature sensor OT communication Three way valve Blocking element MRC Heating Circulation pump Cascade Contactor Room thermostat Pressure sensor Contact functions 1 contacts of the Room thermostat must be permanently connected during the boiler operation 2 contacts of the blocking element must be permanently connected during the boiler operation 3 contacts of the Emergen...

Page 25: ...REKCPU B 1 25A K7 K6 K5 h K2 K4 K3 K1 Re1 Re2 Re3 Re6 2 1 1 2 Safety thermostat Night moderation DHW Heating water sensor Relief relay 1 Relief relay 2 Storage tank thermostat DHW sensor Outdoor temperature sensor OT communication Three way valve Blocking element MRC Heating Circulation pump Cascade Contactor Room thermostat Pressure sensor ...

Page 26: ...U B 1 25A K7 K6 K5 h K2 K4 K3 K1 Re1 Re2 Re3 Re6 Re7 Re8 Re9 2 1 3 1 2 3 Safety thermostat Night moderation DHW Heating water sensor Relief relay 1 Relief relay 2 Storage tank thermostat DHW sensor Outdoor temperature sensor OT communication Three way valve Blocking element MRC Heating Circulation pump Cascade Contactor Room thermostat Pressure sensor ...

Page 27: ...A K7 K6 K5 h K2 K4 K3 K1 4 2 4 1 3 Re1 Re1 Re2 Re2 Re3 Re3 Re6 Re7 Re8 Re9 1 2 3 Safety thermostat Night moderation DHW Heating water sensor Relief relay 1 Relief relay 2 Storage tank thermostat DHW sensor Outdoor temperature sensor OT communication Three way valve Blocking element MRC Heating Circulation pump Cascade Contactor Room thermostat Pressure sensor ...

Page 28: ... K6 K5 h K2 K4 K3 K1 1 2 3 4 5 2 4 1 5 3 Re1 Re1 Re2 Re2 Re3 Re3 Re6 Re6 Re7 Re8 Re9 Safety thermostat Night moderation DHW Heating water sensor Relief relay 1 Relief relay 2 Storage tank thermostat DHW sensor Outdoor temperature sensor OT communication Three way valve Blocking element MRC Heating Circulation pump Cascade Contactor Room thermostat Pressure sensor ...

Page 29: ... K2 K4 K3 K1 4 1 5 2 6 3 5 2 6 1 4 3 Re1 Re1 Re2 Re2 Re3 Re3 Re6 Re6 Re7 Re7 Re8 Re8 Re9 Re9 Safety thermostat Night moderation DHW Heating water sensor Relief relay 1 Relief relay 2 Storage tank thermostat DHW sensor Outdoor temperature sensor OT communication Three way valve Blocking element MRC Heating Circulation pump Cascade Contactor Room thermostat Pressure sensor ...

Page 30: ...i o n T hr ee wa y va l v e Blocking e lemen t MRC Heat ring Cir culation pum p Cascad e Cont actor Stora ge ta nk tth ermo stat Master boiler Slave boiler Pressu re senso r Room the rmo stat He ating water senso r Pressu re senso r Night mo dera tion Relief Re lay 1 Relief Re lay 2 Stora ge ta nk the rmo stat Room the rmo stat DHW senso r Out door tem per atur e sen sor OT comm unicat i o n DHW T...

Page 31: ...due to external factors mechanical damage storage transport and defects originating during natural disasters etc 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 Conditions which must be observed for the guarantee acknowledgem...

Page 32: ... the SLEEP mode If the operation mode is set after the termination of the MRC signal the DHW preparation becomes interrupted Connections of the storage tank and the three way valve are shown in the electric diagram Connection diagram of an electric boiler with indirect heating storage tank for informational purposes T1 MV AB B A DHW T Electric boiler Indirect heating storage tank Thermostat or DHW...

Page 33: ...ve 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 Temperature sensor 9 Vent valve 10 Heating bar 11 Control display 12 Boiler automatic system 13 Expansion vessel 7 l ...

Page 34: ...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 Temperature sensor 9 Vent valve 10 Heating bar 11 Control display 12 Boiler automatic system ...

Page 35: ...mounting of the boiler 17 Boiler dimensions and connection 1 Recuperative water inlet Therm 8 15 23 Therm 30 38 45 1 2 Heating water outlet Therm 8 15 23 Therm 30 38 45 1 3 Safety valve outlet 4 Blow valve outlet ...

Page 36: ...aging is commonly disposed of in scrap paper collection centres The packaging foil can be disposed of in collection containers for plastics Boiler parts made from steel copper and copper alloys are to be delivered to sorted metal waste scrapyards Heat insulation of the combustion chamber is in accordance with the health safety and shall be liquidated in common home waste Standard storage condition...

Page 37: ...d recommendations Its operation under the service conditions in line with manufacturer recommendations is safe Measures were adopted which assure the conformity of this appliance now introduced to the market with technical documentation and basic technical safety and hygienic requirements Technical incpection date stamp and signature THERMONA spol s r o Stará osada 258 Zastávka u Brna 664 84 Czech...

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