Summary of Contents for thermital ACQUAHOME R BLU Series
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INSTALLATION AND MAINTENANCE MANUAL ACQUAHOME R BLU...
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For a complete list of accessories and details of their compati- ance quickly, easily, and correctly. bility, refer to the Catalogue. Please accept our thanks and our congratulations on your choice of product. Thermital CONFORMITY boilers conform to the following directives: ACQUAHOME R BLU - Directive 92/42/EEC on efficiency requirements...
GENERAL INFORMATION Precautions The operation of any appliance that uses fuel, electrical power and water demands that a number of fundamental safety pre- General Safety Information cautions be respected: Do not allow children or infirm persons to operate the After removing the packaging, check the condition and system unsupervised.
Safety and control devices Identification The control panel, apart from managing the functions of the The products are identified by: thermal unit ACQUAHOME R BLU , allows to highlight any anom- aly which may affect its correct operation, ensuring the thermal Serial number plate Contains the serial number, the model and the main tech- unit safety by stopping it and automatically closing the burner...
System layout ACQUAHOME R BLU Safety valve Main switch Central heating flow Central heating return Control panel Heating expansion reservoir Burner Drain cock Pump Flame inspection window Boiler body Serial number plate Exhaust flue duct Flue gas box cover Lifting bracket Automatic vent valve ENGLISH...
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BURNER Pump Pressure gauge fitting Burner controller Photoresistor Reset button with lockout indicator Flame pipe Flange with seal Condenser Air damper adjuster screw Motor Air intake Heating element Oil pump pressure adjuster screw OIL PUMP Suction port Return By-pass screw Pressure gauge fitting Pressure adjuster screw Vacuum gauge fitting...
Pump DESCRIPTION ACQUAHOME R BLU Electrical consumption EEI Part 3 (*) ≤ 0,20 P L,Avg (**) ≤ 23 Minimum pressure at pump suction inlet Energy efficiency rating according to regulations 641/2009-622/2012 Approximate average annual electricity consumption according to regulations 641/2009-622/2012 (**) PUMP CURVES Residual head [m] - [kPa]...
Control panel Controls interface Door Light guide Rear light display ENTER/RESET key: it allows accessing the main menu and restoring the operation after a stop due to an anomaly Navigation keys Main switch (located on the equipment rear wall) Light Guide displaying STATUS DESCRIPTION Thermal unit drain cycle and initialization in progress after the power...
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Display visualisation HEAT °C °F OUTSIDE Icon displayed when heating mode is enabled. Blinking when there is a heat demand Icon displayed when DHW mode is enabled. Blinking when there is an DHW Demand Icon displayed when entering the "Installer" menu Icon displayed when the burner of the equipment is on.
The instruction manual is an integral part of the appli- ance; therefore, it should be read and stored carefully. Keep the documentation envelope in a safe place. Any replacement documents must be ordered from Thermital who reserve the right to charge for the cost of the re- placement.
Moving and removing the packing Do not dispose of packaging material into the environ- ment, or leave it within the reach of children, since it can become a potential hazard. Dispose of packaging mate- Wear suitable personal protection equipment when mov- rial in compliance with applicable legislation.
To move the boiler manually, proceed as follows: These boilers must be installed indoors. They are not de- - Unscrew the screws (1) securing the boiler to the pallet; signed for outside use. - Remove the top panel (2); Do not obstruct or restrict the air vents in the room where - lift the boiler using the brackets provided in the body;...
Water connections Boiler water circuit The following table gives the dimensions and positions of the water fittings for ACQUAHOME R BLU boilers. Before installing the boiler, flush out all the pipes of the central heating circuit to remove any machining residues. ACQUAHOME DESCRIPTION Boiler body...
Typical system schematic Fuel connections The thermal unit ACQUAHOME R BLU is preset to receive the light oil supply pipes through the slot (3) of the rear panel. Isolating valve The light oil supply delivery pipe must be connected directly CH radiator on the filter (1) (accessory), the return pipe to the preset union Pressure reducer...
Discharge of combustion products Priming the pump To prime the oil pump simply start up the burner and check The flue pipe (1) and the connection to the stack (2) must be for a flame. made in conformity to the laws, standards and regulations ap- If the burner enters lockout before any fuel reaches it, wait at plicable in the place of installation.
Technical specifications of stack BOILER CONFIGURATIONS C “SEALED” If comburent air is drawn from outdoors, the appliances are The stack must satisfy the following requirements:: type C "sealed" and the boiler room does not require ventila- - It must be constructed from materials that are imper- tion.
System filling and emptying boilers require a filling pipe connected to ACQUAHOME R BLU the central heating circuit return pipe. Before carrying out system filling and emptying operations, set the main switch of the system to OFF and the main switch of the equipment to ( 0 ).
Filling Emptying Before emptying: - Set the main switch of the system to OFF and the main switch of the equipment to ( 0 ). - Before starting the loading, check that the boiler drain - Close the water supply shut-off cocks; valve (1) is closed.
Electrical connections Automatic shut-off device (not supplied) The ACQUAHOME R BLU boiler is fully cabled in the factory. The only connections required for its installation are those of the mains power supply, room thermostat and other optional system components. Proceed as follows to access the control panel terminals: - open the control panel door and remove the fixing screw (2);...
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- close the door and turn the control panel outwards; - on completion of the electrical connections, replace all removed components in the opposite order. The following is mandatory: - The use of an omnipolar magnetothermic switch, line disconnecting switch in compliance with CEI-EN stand- ards (contact opening of at least 3 mm) - Respect the connection L (line) - N (neutral).
Menu navigation At start-up or when no key is pressed for more than 4 minutes, the display is in “basic display” mode and provides general in- formation on the equipment operation. In this mode, keys have the following functions: Button Function It increases the heating setpoint (when active/available) "+"...
MENU selection Access the “menu” mode by pressing the key “ENTER/RESET” The digits of the small display indicate “0000”, which is the first accessible menu. In this mode, keys have the following functions: Button Function "+" Exits from the menu and cancels a parameter change "-"...
Navigation scheme "Basic display" mode °C "End user" mode "installer" mode Enter password Example of parameter setting change con rmed change canceled ENGLISH...
List of parameters The programming lines can be hidden, according to the access level (User, Installer) Access level: and to the thermal unit configuration. End user Installer The parameters of Installer level must be changed only by the Technical Assistance Service OpenTherm Key:...
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Default Default setting setting Par. Menu Description Range ACQUA- ACQUA- Access HOME 25 HOME 32 R BLU R BLU 1056 Total hours of operation in heating mode h x 10 1000 1057 Total hours of operation in domestic mode h x 10 1000 1058 Total hours of operation...
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Default Default setting setting Par. Menu Description Range ACQUA- ACQUA- Access HOME 25 HOME 32 R BLU R BLU If Zone 1 is not ena- bled: (Par. 2121, Direct Zone/Zone 1 heating setpoint at the minimum ex- Par. 2024) ternal temperature If Zone 1 is 82 (AT) 82 (AT)
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Default Default setting setting Par. Menu Description Range ACQUA- ACQUA- Access HOME 25 HOME 32 R BLU R BLU Zone 2 heating setpoint in 0 and 3 heating modes The thermal unit adjustment determines the boiler set- BT: (Par. point in heating mode, using the highest value among 2221, 45) 70 (AT) 70 (AT)
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Default Default setting setting Par. Menu Description Range ACQUA- ACQUA- Access HOME 25 HOME 32 R BLU R BLU Zone 3 maximum heating setpoint at the minimum ex- BT: (Par. ternal temperature 2321, 45) 82 (AT) 82 (AT) 2319 The range of this parameter is limited by the values of AT: (Par.
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Default Default setting setting Par. Menu Description Range ACQUA- ACQUA- Access HOME 25 HOME 32 R BLU R BLU 2048 DHW setpoint with instant production 40…70 °C 2000 Circulator modulation in DHW mode 2049 The circulator modulation can vary between 50% = 5 5...10 10*% 2000...
COMMISSIONING AND MAINTENANCE Firmware version of the thermal unit interface. In the example the message indicates a firmware version = 0. Preparing for initial startup The first start-up of the thermal unit must be carried out by the Technical Assistance Centre. Perform the following checks before starting up the boiler: - Check that the fuel shut-off cock and heating system shut-off cock are open...
Adjustment of heating setpoint Once the initialization phase is complete, the display switches to “basic display” mode. - Press the key“+” or “-” to display the current value of the In this mode, the main information on the equipment operation heating temperature setpoint.
Enable/disable the heating function The parameters regulating such temperature are: Par. - Press the keys “+” and “-” simultaneously for a few sec- Description onds; Main Zone/Zone 1 setpoint in heating mode Par. - The icon and the current heating mode (ON or OFF) 2001 = 0 and 3.
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The heating delivery temperature is defined by a setpoint Parameter 2131 (installer level) which varies according to the external temperature and the In-between seasons when the external temperature gets clos- ambient temperature on the basis of a climatic curve defined er to the maximum limit set in Par.
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Parameter 2130 (user level) The equipment works with a variable setpoint defined by the The parallel shift of the climatic curve is used to modify, in a climatic curve (which can be set as described in mode 1) ac- uniform way, the delivery temperature for the whole scale of the cording to the external temperature.
: continuous operation with fixed setpoint and night re- The parameters regulating such temperature are: Mode 3 duction with ambient thermostat (AT) Par. Description In this mode: It limits the minimum value that can be assigned to 2023 - External probe is not required. the setpoint in heating mode.
Venting (Par. 2090) Temporary Error The function is automatically enabled at the first start-up and at The text “Err” is displayed together with the temporary error each reset of the power supply. number. When the function is active, the message “Air” is displayed. The icon indicates that the burner is disabled.
Burner control and adjustment - Check that the thermal unit has come to a complete stop by setting the main switch of the equipment and ADJUSTING PUMP PRESSURE the main switch of the system to “off”. Turn the adjuster screw (1) to achieve the pressure setting specified in the table.
Burner functioning and programming DESCRIPTION VALUE Standby: the burner waits for a heat request Normal functioning Standby time for an input signal: reaction time, control box remains in waiting mode ≤ 1 sec for t1 POWER SUPPLY Initialisation verification time: time following 3,5 sec startup of main power supply Checks extraneous light or parasite flame...
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Lockout caused by ignition failure DESCRIPTION VALUE Standby: the burner waits for a heat request Standby time for an input signal: reaction time, control box remains in waiting mode ≤ 1 sec POWER SUPPLY for t1 Initialisation verification time: time following 3,5 sec startup of main power supply Checks extraneous light or parasite flame...
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Functioning status display Reset button Seconds Flash Functioning status Reset button LED colour time Pre-ventilation Slow Flashing ORANGE Safety time Slow Flashing GREEN Normal functioning position Steady ON GREEN Extraneous light or false flame signal Slow GREEN, RED alternate flashing Power supply frequency error Steady ON ORANGE...
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MAIN BURNER FUNCTIONS POST-PURGING Heating function always on The post-purging function keeps the fan running for a set time The burner is equipped with heating function always on. In after the burner shuts down provided there is no new heat re- case of a heat request, it starts immediately with the start-up quest.
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Menu access block diagram BURNER STATE NORMAL FUNCTIONING (FLAME LIT) AND STANDBY TYPE OF SHUTDOWN TEST POST-PURGING CONTROLLED LAST LOCKOUT FUNCTION SHUTDOWN IN MEMORY AND RESTART BUTTON 25 SECS 5 SECS 10 SECS 20 SECS RELEASE TIME NUMBER OF 2 RED 1 GREEN 3 GREEN 4 GREEN...
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CONTROLLED SHUTDOWN AND RESTART SHUTDOWN TEST Enabling/disabling sequence: If the reset button is pressed and held down for a time between - programming permitted in NORMAL FUNCTIONING 5 and 10 seconds during normal functioning, the burner shuts and STANDBY mode; down, the fuel oil valve closes, the flame goes out and then the - Press and hold the burner reset button for between 20 startup sequence starts.
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EXTRANEOUS LIGHT OR FALSE FLAME SIGNAL FAN MOTOR CONTROL The presence of the parasite flame or the extraneous light The burner controller automatically detects the presence of the can be detected in the standby condition when the burner is fan motor and enters lockout in the event of a fan motor failure. stopped and waiting for a heat request.
Temporary Errors EEPROM CONTROL Message Error No. Description The burner controller automatically checks for errors in the mi- crocontroller EEPROM and enters lockout if an error is detect- Pressure decreasing alarm (<0.8) E046 ed. An error is indicated by the LED flashing (see the “Fault (temporary) diagnosis - lockouts”...
Temporary or short-term shut-down Perform the following operations before beginning any mainte- nance or cleaning: - set the main switch of the system to OFF and the main In the event of temporary or short-term shut-down (e.g. due to switch of the equipment to (0); holidays), proceed as follows: - Remove the power supply by setting the main switch of the equipment and the main switch of the system to...
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REMOVING THE BURNER REMOVING THE BLAST TUBE Proceed as follows to remove the burner: Proceed as follows to remove the blast tube: - Close the fuel shut-off cocks; - Remove the screws (1) and remove the blast tube. - disconnect the connector (1); - disconnect the high voltage cable (2).
- Make sure that the new nozzle is exactly the same type CLEANING THE FAN and size as the old one Clean the inside and the rotor blades of the fan unit to - Clean the contact and sealing surfaces remove any build-up of dust.
- Remove the burner; - remove the turbulators (7) and check them for wear and - Remove the top panel (3); fin angle (replace as necessary); - remove the insulating cover (4); - use a flue brush (8) or other suitable tool; - remove the screws (5) and slide the flue gas chamber out (6);...
Troubleshooting FAULT CAUSE SOLUTION - Check that the burner body is clean - Check that the flue pipes are clean Fumes escaping into the air There is a smell of fumes - Check the condition of the boiler seals - Check the quality of combustion - Check adjustment of burner (perform Burner badly adjusted flue gas analysis)
TROUBLESHOOTING Problem Diagnostic signal Probable cause Remedy Check voltage at L, N and in power plug Check the condition of No electrical power the fuses Check that the safety thermostat has not tripped The burner does not ignite when heat is requested The flame detector Eliminate cause of light...
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RIELLO S.p.A. Via Ing. Pilade 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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