ASA 800-5000 - Water heaters and boilers Baxi - Free user manual and instructions
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| Product type | Gas-fired condensing boiler and water heater |
| Brand | Baxi |
| Model | ASA 800-5000 |
| Energy input | Natural gas (G20) / LPG (G31) |
| Heating output | 800 - 5000 kW (depending on model) |
| Maximum flow temperature | 90°C (adjustable) |
| Minimum flow temperature | 35°C (condensing operation) |
| Control system | Electronic control with LCD display |
| Combustion chamber | Closed/room-sealed |
| Efficiency | Up to 98% (condensing) |
| Water connection | G 2" (typical) |
| Gas connection | G 2" (typical) |
| Power supply | 230 V / 50 Hz |
| Electrical protection class | IP44 |
| Dimensions (H x W x D) | 1200 x 800 x 700 mm (approx.) |
| Weight | 180 kg (approx.) |
| Pressure relief valve | Included, set at 6 bar |
| Frost protection | Built-in |
| Maintenance | Annual professional service required |
| Heating circuit | Sealed system expansion vessel 12 L |
| Spare parts | Available for 10 years after purchase |
Frequently Asked Questions - ASA 800-5000 Baxi
What is the correct operating pressure for my Baxi ASA 800-5000?
The recommended cold water pressure is between 1 and 1.5 bar. If the pressure exceeds 2.5 bar, contact a professional. Always check the pressure gauge on the front panel.
How can I reset my boiler after a lockout?
To reset, press and hold the reset button for 3 seconds. The boiler will attempt to reignite. If the problem persists, consult the error code and contact a certified engineer.
How often should I service the ASA 800-5000?
It is recommended to have a professional service at least once a year to ensure optimal efficiency and safety. This includes cleaning of the heat exchanger and safety checks.
Can I replace the spare parts myself?
Only qualified personnel should replace internal parts. Genuine Baxi spare parts are available for up to 10 years. Unauthorized replacement may void the warranty.
What does the E1 error code mean?
E1 usually indicates a flame failure. Check the gas supply and ensure the gas valve is open. If it recurs, contact a professional.
Is this boiler compatible with solar thermal systems?
The Baxi ASA 800-5000 can be integrated with a solar panel using a suitable heat exchanger and controller. Consult a designer for correct sizing.
What type of flue is required?
This is a room-sealed appliance, so it requires a concentric flue kit. Use only Baxi-approved flue components.
Why does the water pressure drop periodically?
Slight drops are normal, but frequent drops indicate a leak in the system or a faulty expansion vessel. Check for visible leaks and repressurize to 1.5 bar.
How do I adjust the heating water temperature?
Use the temperature control dial on the control panel. The maximum setting is 90°C, but for the highest efficiency, set below 60°C to enable condensing mode.
What is the warranty period for this Baxi appliance?
The standard warranty is 2 years for domestic installations. Register your product online to extend it to 5 years.
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USER MANUAL ASA 800-5000 Baxi
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Product information
Brand : Baxi
Model : ASA 800-5000
Category : Water heaters and boilers