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TERMOSTROJ TermoMini Installation Manual & Users Manual Download Page 22

TMS-UT-0416-T01-0 

 

Page 19 

- RCCB switch 
cannot be reset 

-

 

safety thermostat is activated 

-

 

pre-reset safety thermostat 
and then the RCCB switch 

-

 

contact authorized service 
personnel to resolve the 
exact source of the 
problem 

 

Table 7. Possible malfunctions 

Summary of Contents for TermoMini

Page 1: ...ELECTRIC BOILERS FOR CENTRAL HEATING TermoMini Installation manual User guide ...

Page 2: ... 7 3 4 5 Pressure gauge 7 3 4 6 Expansion vessel 7 3 4 7 Circulating pump 7 3 4 8 Air in boiler 7 4 Boiler installation sequence 8 4 1 Transporting the appliance 8 4 2 Select position for boiler 8 4 3 Fitting the boiler hanging bracket 8 4 4 Removing fixing the front and top case 9 4 5 Power supply connection 9 4 6 Connecting temperature sensors or external electrical controls 10 4 6 1 Accessing c...

Page 3: ...se 9 Figure 8 Power supply connection 9 Figure 9 Connection relay plate 10 Figure 10 Pump NMT PLUS 25 40 11 Figure 11 Pump characteristics 12 Figure 12 Standard electronic control panel 12 Figure 13 Control panel W OPTION 16 Figure 14 Hydraulic sketch for TermoMini with OPTION control panel type Z 16 Tables Table 1 Expansion vessel characteristics 3 Table 2 Power supply characteristics 3 Table 3 L...

Page 4: ...ufacturer Switch off main power by MCB before opening the boiler Boiler has built in frost protection When the boiler is not in use leave the main power active that protection stay active 1 Introduction Thank you for the confidence you have shown to us by purchasing our central heating boiler In order to use the boiler to the utmost correctly and safely and above all economically read thoroughly t...

Page 5: ...d heating smaller water quantities so that exploiting energy is already 100 TermoMini boilers are used for radiator and floor heating Temperature operation area is from 20 C to 90 C TermoMini boilers are designed in such way that in apartment contained central heating they can fit well with your furniture 1 4 Frost protection The software in control panel provides boiler frost protection When fros...

Page 6: ...f Water in the System L 86 Table 2 Power supply characteristics Power kW 230 V N 400V 3N 50 60 Hz 3 4 5 6 9 9 12 Nominal current A 13 19 6 26 1 39 2 13 1 17 5 Fuse current A 16 25 32 50 16 25 Rated short circuit breaking capacity Icn EN 60898 kA 10 10 10 10 10 10 Rated short circuit breaking capacity Icn IEC 947 2 kA 15 15 15 15 15 15 Min conductor s cross section mm2 3x2 5 3X4 3X6 3X10 5X2 5 5x4 ...

Page 7: ...elements 1 Primary flow 10 Expansion vessel 2 Return flow 11 Circulation pump 3 External boiler shell 12 Pressure relief valve 0 3 MPa 3 bar 4 Boiler 13 Automatic air vent 5 Heat insulation 14 Charge and discharge valve 6 Electrical heaters 16 Air indicator 7 Control panel 17 Manifold 8 Inducers for el connections 9 RCCB switch and relays ...

Page 8: ...unction during wintertime there is a danger of installation freeze In this case boiler should be filled with antifreeze liquid for central heating If this is not possible water should be drained out of the system with the help of charge and discharge valve Recommended pressure of central heating installation is between 0 12 MPa 1 2 bar and 0 15 MPa 1 5 bar maximum pressure is 0 25 MPa 2 5 bar 3 3 ...

Page 9: ...e to the fixing wiring the means for disconnection MCB must be incorporated in fixed wiring in accordance with the local wiring rules RCCB RCD switch 0 03A sensitivity is fitted inside a boiler Note In some cases additional measures must be taken subject to the requirements of the Local Authorities 3 4 System requirements 3 4 1 Pipe work Pipe work that is not a forming part of the useful heating s...

Page 10: ... provided with the boiler This safety device is required on all sealed heating systems and is preset at 0 3 MPa 3 bar The pressure relief valve must not be used for draining purposes 3 4 5 Pressure gauge This is factory fitted to the TERMO Mini boilers and indicates the primary circuit pressure to facilitate filling and testing 3 4 6 Expansion vessel TermoMini boiler incorporate an expansion vesse...

Page 11: ...at stable balance is achieved and lift upwards to drop into place onto bracket Ensure coordinated movements during a two person lift to ensure equal spread of weight of load it is recommended to wear suitable cut resistant gloves with good grip to protect against sharp edges and ensure good grip when handling appliance 4 2 Select position for boiler Refer to chapter 3 3 1 for information regarding...

Page 12: ...he front and top case Figure 7 Removing front and top case Grasp the front case by its sides pull it towards the front and remove it by lifting it of the unit push top cover towards back and lift it of the unit 4 5 Power supply connection Note Before working with the appliance turn off the power supply MCB and secure against restart This device must be earthed Tightening torque for RCCB is 2 5 Nm ...

Page 13: ...r the heating system to operate properly the indicator of manometer must be between 1 2 and 1 5 bar when the system is cold It is very important to use soft water or fluids for central heating 5 Commissioning 5 1 Heating system check Check for pressure in the system it should be from 0 12 MPa 1 2 bar to 0 15 MPa 1 5 bar when the system is cold Vent all heating elements and installation 5 2 Prelimi...

Page 14: ...ryl Pump casing is made of grey cast iron Embodiment of the casing is single made Figure 10 Pump NMT 25 40 Table 5 Pump electric and performance information Table 6 Pump general information Max flow Qmax m3 h 2 6 Medium temperature C 5 95 Max height Hmax m 4 Ambient temperature C 0 40 Default pressure bar 10 Recommended system pressure at 50 80 110 C bar 0 05 0 4 1 1 Power W 5 25 Current A 0 05 0 ...

Page 15: ...TMS UT 0416 T01 0 Page 12 Figure 11 Pump characteristics 5 4 Working with standard control panel Figure 12 Standard electronic control panel ...

Page 16: ...e boiler the signalization of air in the boiler LU is shown on display 2 and the boiler stops the operation In this way the boiler is protected against burning through because of appearance of air To continue the operation the boiler should be vented If the boiler is correctly vented the operation of boiler continues automatically Voltage drop SP If the voltage in the network line drops below 180V...

Page 17: ... can enter the boiler temperature menu The desired boiler temperature is blinking By pressing the key 6 UP or DOWN the desired boiler temperature can be set in steps of 1 C If the key is held pressed less than 5 s the value from the display becomes the desired boiler temperature Possible adjustment is from 20 C up to 90 C for radiator heating Possible adjustment is from 15 C up to 45 C for under f...

Page 18: ... temperature Temperature changes in steps of 1 C If the key is depressed for more than 5s value on the display will be memorized and becomes active Radiator heating Adjustment range 20 C 45 C factory default 45 C Underfloor heating Adjustment range 15 C 30 C factory default 30 C Setting the heating pump delay By pressing key 6 user can change pump delay time between 0 15 min Factory settings is 2 ...

Page 19: ...degree of heaters 1 2 3 3 Signalization of air appearance in the boiler red light 4 Signalization of under voltage protection red light 5 Signalization of boiler operation green light 6 Adjustment of temperature in boiler 7 Switch for central heating switching on and off 8 Sanitary water temperature adjustment 9 Switch for switching on and off the sanitary water preparation 10 Signalization of san...

Page 20: ...e recommend this test once or twice in heating season Safety valve should be checked once a year before the beginning of heating season to ensure proper functioning and avoiding appearance of water calculus If the boiler is not connected to the room thermostat or if the boiler is out of function during the winter time there is a danger of installation freezing In this case the system should be fil...

Page 21: ...g installation prevents circulation vent installation boiler does not provide enough heat one phase is missing on supply a part of heater is burned through in a three phase system the three different phases are not brought to the boiler check fuses on the main panel contact authorized service personnel to resolve the problem the switcher can be heard while operating it buzzes radio and TV interfer...

Page 22: ...19 RCCB switch cannot be reset safety thermostat is activated pre reset safety thermostat and then the RCCB switch contact authorized service personnel to resolve the exact source of the problem Table 7 Possible malfunctions ...

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