The SANICA FIJI 24-28 kW Hermetic Conventional Boiler is a combi boiler designed for efficient, safe, and comfortable central heating and domestic hot water needs, utilizing natural gas fuel. This manual provides comprehensive information for its installation, safe and efficient use, maintenance, and troubleshooting.
Technical Specifications
The SANICA FIJI series includes two models: FIJI 24 and FIJI 28, with varying power outputs.
Heating Circuit:
- Heat Power Max: FIJI 24 offers 24 kW, while FIJI 28 provides 27.5 kW.
- Heat Load Max: FIJI 24 has 25.9 kW, and FIJI 28 has 29.5 kW.
- Heat Power Min: FIJI 24 is 9.3 kW, and FIJI 28 is 11.1 kW.
- Max Pressure: Both models have a maximum pressure of 3 bar.
- Minimum Water Pressure: Both models require a minimum water pressure of 0.5 bar.
- Setting Temperature: The heating circuit setting temperature ranges from 30-80 °C for both models.
Domestic Water Circuit:
- Min. Usage Water Flow: Both models require a minimum usage water flow of 3 l/dk.
- Max Use Water Flow (ΔT = 30 °C): FIJI 24 provides 11 l/dk, and FIJI 28 provides 13 l/dk.
- Setting Temperature: The domestic water circuit setting temperature ranges from 35-60 °C for both models.
General Specifications:
- Expansion Tank Capacity: Both models feature a 7-liter expansion tank.
- Expansion Tank Pre-Pressure: Both models have a pre-pressure of 1 bar.
- Minimum Working Pressure: Both models operate at a minimum working pressure of 0.3 bar.
- Burner Pressure at Max Heat Load: Both models have a burner pressure of 11 mbar at max heat load.
- Burner Pressure at Min Heat Load: Both models have a burner pressure of 1.7 mbar at min heat load.
- Max Chimney Length: The maximum chimney length for both models is 3 meters.
- Gas type: Both models use G20 gas.
- Natural gas supply pressure: Both models require a natural gas supply pressure of 20 mbar.
- Supply voltage: 230 V.
- Frequency: 50 Hz.
- Electric charge: 140 W.
- Dimensions (Height x Width x Depth): 717 mm x 400 mm x 330 mm for both models.
- Net weight: FIJI 24 is 28 kg, and FIJI 28 is 33 kg.
- Electrical protection class: IP X4D for both models.
Usage Features
The boiler offers both Summer and Winter modes. In Summer mode, the device only provides domestic hot water, with the heating feature deactivated. In Winter mode, both heating and domestic hot water functions are active. The device features an On/Off and Summer/Winter position button, a Heater Button, and a Domestic Water adjustment knob for user control.
Starting the Boiler:
- Ensure electricity, water, and gas connections are properly made and supply energies are on.
- Open the energy connection.
- Turn the gas valve to the open position.
- Select Summer or Winter mode using the switch.
- Adjust temperature knobs to the desired settings.
- Warning: When starting for the first time, the device may experience ignition errors due to air in the gas pipe. In such cases, turn the On/Off switch to the off position, wait 3 seconds, and then turn it on again.
- Warning: In Summer mode, the device will not activate unless domestic water is turned on.
Daily Usage:
- Summer Mode: Indicated by a specific mark on the screen. Pump blockage protection and frost protection are active. Domestic water temperature is adjusted using the dedicated knob.
- Winter Mode: Indicated by specific signs on the screen. The mode setting button should be between "min" and "max" texts. Radiator temperature is adjusted using the heater button, and domestic water temperature is adjusted with its dedicated knob. Pump blockage protection and frost protection are active.
- Warning: When the device is off, pump blockage safety is active, but frost protection is not active.
- Warning: When the burner ignites, a specific sign is displayed on the screen.
Filling Boiler with Water:
- Water is supplied via the filling valve located at the bottom of the device (Figure 3).
- When the device is cold, the water level should be between 1-1.5 bars on the manometer (Figure 2).
- If water pressure drops to a critical level, the device automatically stops.
- Warning: To fill the device with water, it must be in heating (winter) mode. Water filling cannot be performed in domestic water (summer) mode.
Turning Off the Boiler:
- Turn the button to the off position.
- When off, pump blocking safety is active, but frost protection is not active.
- To cut off electric current completely, switch off electricity from the main fuse.
- Warning: Electrical and gas connections must remain connected for frost protection to be active. Frost protection activates when water in the device falls below 5 degrees Celsius, heating it up to 30 degrees.
Maintenance Features
To ensure smooth and efficient operation for a long time, annual maintenance by an authorized service at the beginning of each season is recommended.
- Cleaning: The outer surface of the device should be cleaned with a damp cloth only, without using any chemicals or detergents.
- Installation Check: Before connecting the device, ensure the installation is clean and free of foreign particles.
- Useful Life and Spare Parts: The useful life of combi boilers, as determined by the Ministry of Science, Industry and Technology, is 15 years. Manufacturers undertake to keep spare parts available for this period.
- Warning: This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless supervised or instructed by a responsible person. Children must be supervised to ensure they do not play with the appliance. Cleaning and user maintenance should not be performed by children without supervision.
Installation Instructions
- Packaging Content: Boiler support styrofoam, assembly hanger equipment, user manual, warranty certificate, and service booklet.
- Location Selection: The mounting location must comply with conditions determined by TSE and authorized gas organizations.
- Mounting: Hanging equipment must be securely mounted on the wall to support the boiler's weight. The device must be mounted level.
- Clearance: Recommended clearances are 50 cm from the top, 15 cm from the sides, and 40 cm from the bottom.
- Water Connections: A filter and a ball valve must be installed at the combi's inlets.
- Mains Pressure: The mains inlet pressure should not exceed 8 bar. If network pressure is higher, a pressure reducer must be installed.
- Gas Installation: The suitability of the gas installation and the device must be checked.
- Safety Valve: The safety valve connection must be directed to the installation drainage line.
Flue Connection
- Accessories: Only manufacturer-provided accessories must be used.
- Compliance: Flue connection must comply with conditions determined by TSE and authorized gas organizations.
- Prohibited Locations: Chimney connection is not allowed in stairwells, building corridors, wells, on chimney walls, balconies, or elevator shafts.
- Key Considerations:
- If the chimney is removed from the roof, the inlet should be 1.5 m from the top of the roof and coatings.
- It should be at least 0.3 m high from the ground and in a wireframe if there is an impact risk.
- When taken out of the wall, the chimney must extend at least 18 mm outside the wall.
- Horizontally connected flue connections should be mounted downward with a 1% slope.
- If installed in attics, the chimney should be at least 40 cm above the roof and insulated with fire-resistant material.
- Maximum chimney length is 3 m, reduced by 1 m for each 90° elbow and 0.5 m for each 45° pole.
- For vertical chimney applications, roof tightness must be fully ensured. Malfunctions due to inadequate sealing are not covered by warranty.
- Warning: A fan throttle washer from the package must be used for horizontal and vertical extension flue connections. The manual provides a table for chimney size and corresponding washer (mm) for both FIJI 24 KW and FIJI 28 KW models.
Electrical Connection
- The device must be connected to a grounded energy source.
- It requires a 220 ~ 230 V monophase grounded electrical line with a 2 A V-Automat fuse.
Circuit Scheme and Room Thermostat
- For room thermostat connection, the short circuit connection on the card (Figure 12) is removed, and room thermostat cables are installed instead.
- Both simple and digital room thermostats can be connected.
- For room thermostat connections that operate all device functions, including domestic water, contact authorized service.
Malfunction Codes
The device indicates malfunctions and warnings on the LCD screen. If a fault cannot be resolved by the specified action, contact the nearest authorized service.
- E01 (NO FLAME WARNING): RED LED. Action: Turn the device OFF/ON.
- E02 (SAFETY THERMOSTAT WARNING): RED LED. Action: Turn the device OFF/ON.
- E03 (AIR PRESSURE SWITCH WARNING): RED LED. Action: Turn the device OFF/ON.
- E04 (LOW WATER PRESSURE WARNING): RED LED. Action: Check water pressure.
- E06 (DOMESTIC WATER SENSOR WARNING): YELLOW LED. Action: Turn the device OFF/ON.
- E07 (HEATING WATER SENSOR WARNING): YELLOW LED. Action: Turn the device OFF/ON.
- E11 (PARASITE FLAME): YELLOW LED. Action: Turn the device OFF/ON.
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