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thermital ACQUAHOME 32 B Installation And Maintenance Manual

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INSTALLATION AND
MAINTENANCE MANUAL
ACQUAHOME 32 B - 32 BS

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  • Page 1 INSTALLATION AND MAINTENANCE MANUAL ACQUAHOME 32 B - 32 BS...
  • Page 2 Please accept our thanks and our congratulations on your choice of product. Thermital CONFORMITY boilers conform to the following di- ACQUAHOME 32 B - 32 BS rectives: - Directive 92/42/EEC on efficiency requirements - Electromagnetic Compatibility Directive 2014/30/EU - Low Voltage Directive 2014/35/EU...

  • Page 3: Table Of Contents

    CONTENTS GENERAL INFORMATION COMMISSIONING AND MAINTENANCE General Safety Information......4 Preparing for initial startup ......29 Precautions.

  • Page 4: General Information

    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 Check that the product is complete, undamaged and as system unsupervised.

  • Page 5: Description Of The Appliance

    Description of the appliance Identification The ACQUAHOME 32 B - 32 BS boiler produces hot water for The products are identified by: central heating and also produces domestic hot water in an integrated 110 litre storage cylinder. Serial number plate This is located on the boiler body and specifies the serial It can function at low temperature and is oil fuelled.

  • Page 6: System Layout

    System layout ACQUAHOME 32 B Fuel oil filter Control panel Boiler sensor socket Central heating circuit expansion vessel Capillary pressure gauge fitting Distribution manifold Central heating circuit safety valve Boiler drain cock Storage cylinder fill cock Fuel oil drip tray...
  • Page 7 ACQUAHOME 32 BS Fuel oil filter Control panel Boiler sensor socket Central heating circuit expansion vessel Capillary pressure gauge fitting Distribution manifold Central heating circuit safety valve Boiler drain cock Storage cylinder fill cock Fuel oil drip tray Storage cylinder inspection flange Storage cylinder flange insulation Central heating circuit pump Non-return valve...
  • Page 8 BURNER Pump Burner controller Reset button with lockout indicator Flange with seal Air damper adjuster screw Comburent air inlet ( ACQUAHOME 32 B ) Oil pump pressure adjuster screw Pressure gauge fitting Photoresistor Combustion head Motor Comburent air inlet ( ACQUAHOME 32 BS )

  • Page 9: Technical Specifications

    Technical specifications ACQUAHOME ACQUAHOME DESCRIPTION 32 B 32 BS Mixed low temperature heating Device type Fuel Heating fuel oil (light oil) Rated heat input at furnace referred to HVC (LCV) 35,4 (33,4) 35,4 (33,4) Useful (rated) heat output Maximum useful heat output (60-80°C) 31,7 31,7...

  • Page 10: Central Heating System Pump

    STORAGE CYLINDER CHARACTERISTICS ACQUAHOME 32 B - 32 BS Type of storage cylinder Vitrified Storage cylinder layout Horizontal Heat exchanger layout Horizontal Maximum power absorbed 28,5 DHW temperature setting range 0-70°C °C Storage cylinder capacity Coil water capacity Heat exchange surface area 0,98 Domestic hot water production with ∆T 35°C (*)
  • Page 11 PUMP CURVES ACQUAHOME 32 B - 32 BS [kPa] Q [m³/h] Flow-rate Q [l/s] Q [m³/h] The curves refer to a water density of 983.2 Kg/m , a water temperature of +20°C, and a kinematic viscosity of 0.474 mm (0.474 cSt).

  • Page 12: Location Of Sensors

    Location of sensors ACQUAHOME 32 B - 32 BS TS Safety thermostat sensor 1 Boiler sensor 2 Storage cylinder sensor 3 Boiler temperature gauge socket ENGLISH...

  • Page 13: Control Panel

    Control panel ACQUAHOME 32 B - 32 BS Function selector Burner reset Electronic control unit Boiler pressure gauge Displays the pressure in the central heating circuit Fuse holder Holds the protective fuse 6.3 A-T Indicator showing a burner lockout for a tripped safety thermostat (red)

  • Page 14: Installation

    INSTALLATION Overall dimensions and weights Unpacking the product boilers are delivered on a pallet, ACQUAHOME 32 B - 32 BS packed and protected by a wooden cage. The following items are delivered in a plastic bag (1) inside the boiler:...

  • Page 15: Moving And Removing The Packing

    Moving and removing the packing - Remove the polystyrene edge protectors (2) - Pull off the protective bag (3). Wear suitable personal protection equipment when mov- ing the boiler and removing the packing. Only use lifting equipment that is suitable for the weight involved. Proceed as follows to remove the packing: - Remove the staples (A) fixing the wooden cage (1) to the pallet...
  • Page 16 Remove the packaging from the fuel oil drip tray (2). To move the boiler manually, proceed as follows: - Unscrew the screws (1) securing the boiler to the pallet; Install the fuel oil drip tray under the burner. - Lift the boiler by inserting two 1" diameter pipes (2) through the lifting holes (3) at the rear;...

  • Page 17: Installation Premises

    This figure shows the minimum installation distances that must See Thermital’s Catalogue be respected in order to allow proper maintenance of the boil- The manufacturer declines all responsibility for damage caused by incorrectly constructed flue systems. (*) Vents needed for the ACQUAHOME 32 B boiler. ENGLISH...

  • Page 18: Water Connections

    Water connections Boiler water circuit The following table gives the dimensions and positions of the water fittings for ACQUAHOME 32 B - 32 BS boilers. CENTRAL HEATING FLOW Before installing the boiler, flush out all the pipes of the central heating circuit to remove any machining residues.

  • Page 19: Typical Water System Schematics

    Typical water system schematics Fuel connections Typical installation schematic The fuel oil supply pipe must be connected directly to the filter (1) and the return pipe to the fitting (2). Make sure that these connections are oil tight. Disconnect valves CH radiator DHW circulation pump ACQUAHOME...
  • Page 20 Priming the pump To prime the oil pump simply start up the burner and check for a flame. If the burner enters lockout before any fuel reaches it, wait at least 20 seconds then turn the function selector to "Reset burner"...

  • Page 21: Flue Gas Vent And Comburent Air Intake

    Adequate ventilation is essential for correct combustion and functioning. ≥5° (*) Vents needed for the ACQUAHOME 32 B boiler. Models ACQUAHOME 32 BS The condensate drain system (3) must conform to nation- al and local legislation and standards.

  • Page 22: Technical Specifications Of Stack

    Technical specifications of stack The stack must satisfy the following requirements:: - It must be constructed from materials that are imper- meable to flue gases and that offer lasting resistance to mechanical stress, heat and the action of the products of combustion and condensate - It must be vertical, free of restrictions and contain bends of no more than 45°...

  • Page 23: System Filling And Emptying

    System filling and emptying Filling - Make sure that the boiler drain cock (2) and storage The ACQUAHOME 32 B - 32 BS boiler is fitted with a filling cock cylinder drain cock (3) are closed before you start filling (1).

  • Page 24: Emptying

    Emptying Before draining the boiler or storage cylinder: - Turn the mains power switch OFF and turn the control panel function selector to ( 0 ). - Close the water supply shut-off cocks; - To empty the boiler, connect a rubber hose (Øint=12mm) to the hose union on the boiler drain cock (1) or storage cylinder drain cock (2), then open the cock.

  • Page 25: Wiring Diagram

    Wiring diagram WITH BURNER WITHOUT PRE-HEATER ACQUAHOME 32 B - 32 BS B 2 C 3 COM.G. 230V ~ 50Hz Power supply COM.G. 3 position function selector White Safety thermostat (100°C 0/-6) (*) Room thermostat Mains power indicator Burner lockout indicator...

  • Page 26: Electrical Connections

    Electrical connections boilers are fully cabled in the factory. ACQUAHOME 32 B - 32 BS The only connections required for their installation are those of the mains power supply and the room thermostat, using the multi-connector provided: - Remove the front and top panels (A) and (B) from the boiler casing;...

  • Page 27: Electronic Control Unit

    Electronic control unit The electronic controller provides the interface by means of which the installer and user can set and change functioning param- eters and view boiler status. The electronic controller lets you: - Change the functioning mode; - View the temperature of the boiler and storage cylinder; - Change the boiler and storage cylinder parameters (password required);...

  • Page 28: Navigation Scheme

    Navigation scheme Displaying and changing storage cylinder settings Displaying and changing boiler settings Displaying hours remaining to the next service Enter pass- word Changing boiler pa- rameters Changing s t o r a g e c y l i n d e r p a r a m e - ters ENGLISH...

  • Page 29: Commissioning And Maintenance

    COMMISSIONING AND MAINTENANCE - Open the control panel access door; Preparing for initial startup The boiler must be started up for the first time by the manufac- turer's Technical Assistance Service. Perform the following checks before starting up the boiler: - Check that the fuel shut-off cock and heating system shut-off cock are open - Set boiler temperature to 75°C and storage cylinder...

  • Page 30: Resetting The Burner And Safety Thermostat

    Resetting the burner and safety thermostat To restore normal startup conditions, open the cover of the control panel and turn the function selector to "Reset burn- er" for at least 1 second before returning it to its original posi- tion. Wait for the burner to complete the entire ignition cycle again, up to the ignition of the flame.

  • Page 31: Menu Settings

    Menu settings CHANGING THE FUNCTIONING MODE You can only change the boiler’s functioning mode when the display is reading out either boiler or storage cylinder temper- ature. Press the "mode key" repeatedly to scroll to the required TEMPERATURE DISPLAY functioning mode. The default setting is "Winter". - In stand-by mode (with the indicator lit) the boiler Storage cylinder temperature display...
  • Page 32 Press the key to confirm the setpoint and return to the stor- If you press the key while the boiler temperature is dis- age cylinder temperature display. The indicator stops flash- played, the indicator starts to flash and the boiler's current ing.
  • Page 33 This allows you to view and modify the boiler parameters (P1, P2 etc.): - Press the key; - Press the key to scroll through the boiler parameters; - Press the keys to change the value of the parameter; - Press the mode key to return to the initial display. To switch between the boiler parameters and those of the stor- age cylinder, press the key.
  • Page 34 ACCESSING AND CHANGING STORAGE You can now view and modify the storage cylinder parameters (P1, P2 etc.): CYLINDER PARAMETERS - Press the key; - Press the key to scroll through the storage cylinder Only the manufacturer's Technical Assistance Service parameters; or professionally qualified and authorised personnel are - Press the keys to change the value of the...
  • Page 35 Storage cylinder parameters Default set- Parameter Description Range Resolution ting Boiler temperature needed for domestic hot water production. 75 ÷ 85/95 ± 1°C This parameter determines the difference between the boiler temper- ature setting and the storage cylinder temperature setting needed 2 ÷...

  • Page 36: Checks During And After Initial Start-Up

    Refer to applicable standards for the dimensions of the hole and its correct position L along the flue pipe (minimum and maximum distances from the boiler exhaust). ≥5° (*) Vents needed for the ACQUAHOME 32 B boiler. Always plug the sampling hole after analysing the flue gases. ENGLISH...

  • Page 37: Pump Controller

    Pump controller FUNCTIONING MODE The pump is configured in the factory for a maximum head of Performance display 7 metres. When the pump is running, LED 1 is green. The four yellow LEDs indicate the pump's instantaneous electrical power con- When necessary, the user interface provides access to: sumption as shown in the table.

  • Page 38: Burner Control And Adjustment

    When the button lock is active, pressing the button has no ef- fect. This prevents users from accidentally accessing setting ACQUAHOME 32 B - 32 BS mode while allowing them to use setting display mode. Adjusting pump...
  • Page 39 Program for functioning without heater Cycle times Normal functioning ≤ POWER ON 600 (*) ≤ ≤ 3 repeats Flashing green Times are expressed in seconds. Flashing orange (*) independent of burner controller Green DESCRIPTION Standby: the burner waits for a heat request Flame failure during functioning * Input signal standby time: reaction time, the burn- er controller waits for time t1...
  • Page 40 Lockout caused by ignition failure Lockout caused by extraneous light during pre-purging POWER ON POWER ON Lockout Lockout Flashing green Flashing orange Flashing orange Flashing green Flashing green, red Signal not needed HT Heat request Cycle times FM Fan motor ID Ignition electrode ≤...
  • Page 41 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...
  • Page 42 MAIN BURNER FUNCTIONS PROGRAMMING MENU General CONTROLLED SHUTDOWN AND RESTART You can use the reset or remote reset buttons to enter pro- After 24 hours of continuous functioning, the controller initiates gramming mode only during NORMAL FUNCTIONING and a controlled shutdown followed by a re-start to ensure that the STANDBY.
  • Page 43 Menu access block diagram NORMAL FUNCTIONING (FLAME LIT) AND STANDBY BURNER STATE TYPE OF SHUTDOWN TEST POST-PURGING LIGHT DETECTION CONTROLLED LAST LOCKOUT FUNCTION SHUTDOWN IN MEMORY AND RESTART BUTTON 25 SECS. 5 SECS. 10 SECS. 15 SECS. 20 SECS. RELEASE TIME NUMBER OF 2 RED...
  • Page 44 LIGHT DETECTION 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 15 startup sequence starts.
  • Page 45 EXTRANEOUS LIGHT OR FALSE FLAME SIGNAL POWER SUPPLY FREQUENCY ERROR The presence of the parasite flame or the extraneous light The burner controller automatically detects the frequency of can be detected in the standby condition when the burner is the main power supply over the interval of 50 to 60 Hz. Operat- stopped and waiting for a heat request.
  • Page 46 RESET / REMOTE RESET BUTTON ERROR If the reset or remote reset button is held down for more than 60 seconds, the LED flashes to indicate an error until the button is released. (See the “Fault diagnosis - lockouts” section on page 41).

  • Page 47: Temporary Shutdown

    Temporary shutdown Preparing for extended periods of disuse To switch the boiler off for short periods with outdoor tempera- If the boiler is not going to be used for an extended period of ture ABOVE ZERO: time, proceed as follows to prepare it for shut-down - Open the control panel access door;...

  • Page 48: Cleaning And Servicing The Boiler

    Cleaning and servicing the boiler REMOVING THE BURNER ( ACQUAHOME 32 B ) Proceed as follows to remove the burner: It is essential to clean the boiler and remove carbon deposits - Close the fuel shut-off cocks; from the surfaces of the heat exchanger in order to keep the - Disconnect the connectors (1);...
  • Page 49 - Pull the burner (4) out, taking care not to damage it Reverse the above steps to reassemble. REPLACING THE NOZZLE ACQUAHOME 32 B - 32 BS Nozzle type 0.65 80°S Danfoss Remove the blast tube then proceed as follows:...
  • Page 50 - Make sure that the new nozzle is exactly the same type REMOVING THE BURNER CONTROLLER and size as the old one - Clean the contact and sealing surfaces The burner cover has to be removed first in order to remove - Screw the new nozzle into place by hand first, then the controller.

  • Page 51: Cleaning The Boiler

    - refit the turbulators in the flue gas pipes, making sure flue gas box; that they are correctly seated; ACQUAHOME 32 B - replace all removed components in the opposite order. Fit a new fibreglass seal when fitting the cover on the flue gas box.

  • Page 52: Checking And Replacing The Storage Cylinder Anode

    Checking and replacing the storage cylinder Extraordinary cleaning anode Proceed as follows to check the condition of the magnesium Cleaning the storage cylinder anode: - Remove the front panel (1); The storage cylinder should be serviced once a year to check - Close the DHW circuit shut-off cock;...
  • Page 53 SYSTEM ERRORS AND ALARMS Alarm Description This message on the three digit display indicates an active burner lockout alarm. The indicator shows steady light. This message on the three digit display indicates an active safety temperature alarm (safety thermostat tripped). The indicator shows steady light.

  • Page 54: Troubleshooting

    Troubleshooting FAULT CAUSE SOLUTION - Check that the burner body is clean - Check that the flue pipes are clean There is a smell of fumes Fumes escaping into the air - Check the condition of the boiler seals - Check the quality of combustion - Check adjustment of burner (perform Burner badly adjusted flue gas analysis)
  • Page 55 FAULT CAUSE SOLUTION Storage cylinder safety valve - Check calibration or efficiency The storage cylinder safety valve Incorrect DHW circuit pressure - Check DHW circuit pressure keeps opening - Check the efficiency of the expansion DHW circuit expansion vessel vessel Supply pressure too high - Fit a pressure reducer Flow rate too high...

  • Page 56: Recycling And Disposal

    Replace worn RECYCLING AND DISPOSAL Packaging materials from ACQUAHOME 32 B - boilers must be disposed of through appropriate chan- 32 BS nels in order to permit recovery and recycling. At the end of its useful life, dispose of the boiler in compliance with applicable legislation.
  • Page 57 ENGLISH...
  • Page 58 ENGLISH...
  • Page 59 ENGLISH...
  • Page 60 Via Mussa, 20 Z.I. 35018 Piombino Dese (PD) - Italy Tel. 0499323911 - Fax 0499323972 - www.thermital.it - email: info@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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