thermital ACQUAHOME 25 B User Manual Download Page 19 | Manualshive

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Summary of Contents for ACQUAHOME 25 B

Page 1: ...ACQUAHOME 25 B 25 BS USER MANUAL ...

Page 2: ...rts can be made This instruction manual contains important instructions and precautions that must be observed to ensure the trouble free installation and efficient functioning of your ACQUAHOME 25 B 25 BS boiler Please accept our renewed thanks for your purchase Thermital CONFORMITY ACQUAHOME 25 B 25 BS boilers conform to the following di rectives Directive 92 42 EEC on efficiency requirements Ele...

Page 3: ...General Safety Information 4 Precautions 4 Description of the appliance 5 Safety devices 5 System layout 6 Control panel 8 Electronic control unit 9 Navigation scheme 10 USE 11 Putting into service 11 Preliminary operations 11 Start up 11 Ignition failure 12 Resetting the burner and safety thermostat 12 Menu settings 13 Temporary shutdown 15 Preparing for extended periods of disuse 15 Cleaning and...

Page 4: ...ly and must ALWAYS accompany the boiler even if it is sold to another Owner or User or transferred to another plant If it is damaged or lost request another copy from your local Technical Assistance Centre T Precautions The operation of any appliance that uses fuel electrical power and water demands that a number of fundamental safety precautions be respected a a Do not allow children or infirm pe...

Page 5: ...tore the setpoint temperature of the water in the storage cylinder DHW heat requests are prioritised over central heating requests Safety devices ACQUAHOME 25 B 25 BS boilers incorporate the following safety and control devices A manual reset safety thermostat that forces a safe ty shutdown if boiler temperature exceeds the safety threshold 100 C The sensor used to monitor this tem perature is loc...

Page 6: ...nspection window 9 Boiler body 10 Boiler drain cock 11 Burner 12 Fuel oil filter 13 Storage cylinder drain cock 14 Storage cylinder safety valve 15 Non return valve 16 Storage cylinder expansion vessel 17 Central heating circuit pump 18 Boiler circulator 19 Central heating circuit safety valve 20 Storage cylinder fill cock 21 Flue gas exhaust fitting 22 Flue gas box cover 23 Lifting bracket 24 Man...

Page 7: ... Air intake obstructed 11 Boiler drain cock 12 Burner 13 Fuel oil filter 14 Storage cylinder drain cock 15 Storage cylinder safety valve 16 Non return valve 17 Storage cylinder expansion vessel 18 Central heating circuit pump 19 Boiler circulator 20 Central heating circuit safety valve 21 Storage cylinder fill cock 22 Air intake fitting 23 Flue gas exhaust fitting 24 Flue gas box cover 25 Air box ...

Page 8: ...T 5 Indicator showing a burner lockout for a tripped safety thermostat red Lights to show that the safety thermostat has tripped 6 Burner lockout indicator red Lights to show that the burner locked out 7 Electrical power indicator green Lights to show that the boiler is receiving electrical power 8 Manual reset for safety thermostat Allows you to reset the boiler if the safety thermostat trips Uns...

Page 9: ... setting key T2 Boiler parameter selection setting key T3 Value increase button T4 Value decrease button S1 Storage cylinder temperature setpoint indicator yellow S2 Boiler temperature setpoint indicator yellow S3 Service error indicator red S4 Stand by mode indicator green S5 Summer mode indicator green S6 Winter mode indicator green TR Mode selection key D Three digit display P Parameter index p...

Page 10: ...10 ENGLISH Navigation scheme Displaying and changing storage cylinder settings Displaying and changing boiler settings Displaying hours remaining to the next service ...

Page 11: ...erly de aerated Start up Once you have completed all the checks listed above proceed as follows to start up the boiler for the first time Turn the boiler s mains power switch ON Set the room thermostat to the required temperature 20 C or if the system has a timer or timer thermostat make sure that this is switched ON and adjusted to the required temperature 20 C Open the control panel access door ...

Page 12: ...before returning it to its original position Wait for the burner to complete the entire ignition cycle again up to the ignition of the flame If boiler temperature becomes too high the manual reset safety thermostat trips b b If the safety thermostat trips T 100 C the warning light on the control panel comes on Proceed as follows to reset the safety thermostat Wait until boiler temperature falls be...

Page 13: ...tion mode and the central section of the display flashes Pressing any key restores the boiler temperature display CHANGING THE FUNCTIONING MODE You can only change the boiler s functioning mode when the display is reading out either boiler or storage cylinder temperature Press the mode key repeatedly to scroll to the required functioning mode The default setting is Winter In stand by mode with the...

Page 14: ... Press the key to confirm the setpoint and return to the boiler temperature display The indicator stops flashing Displaying and changing the storage cylinder setpoint Press the key to display storage cylinder temperature If you press the or key while the storage cylinder temperature is displayed the indicator starts to flash and the storage cylinder s current setpoint is shown on the three digit d...

Page 15: ...d the pumps if there is a risk of freezing Preparing for extended periods of disuse If the boiler is not going to be used for an extended period of time proceed as follows to prepare it for shut down Open the control panel access door Turn the main power switch to OFF and make sure that the green power indicator goes out switch the boiler OFF at the mains power switch Close the boiler s fuel cock ...

Page 16: ...nt of spot checks Regular maintenance is essential for the safety efficiency and durability of the boiler Servicing is a legal requirement and must be performed at least once a year by a professionally qualified heating engineer External cleaning Clean the boiler s casing panels and control panel with a soft cloth damped in soapy water To remove marks from the boiler casing use a cloth damped in a...

Page 17: ...unction sensor failure or short circuit The indicator shows steady light SEr Service threshold near warning When the burner reaches 90 of the operating hours set in boiler parameter P7 see Programming Parameters the three figure display reads out the message SEr for about three seconds every time the burner starts unless the display is in low consumption mode Service threshold passed warning If th...

Page 18: ...rator triggers a thermal safety block Problem with boiler control thermostat Contact your local Technical Assistance Centre No water Contact your local Technical Assistance Centre The safety valve keeps opening Incorrect central heating circuit pressure Contact your local Technical Assistance Centre CH expansion vessel Contact your local Technical Assistance Centre The central heating pump is not ...

Page 19: ...19 ENGLISH ...

Page 20: ...ilade Riello 7 37045 Legnago VR www thermital it The manufacturer strives to continuously improve all products Appearance dimensions technical specifications standard equipment and accessories are therefore liable to modification without notice ...

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