RXYQ20U5Y1B - Boiler DAIKIN - Free user manual and instructions
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| Product Type | Gas Condensing Boiler |
| Brand | Daikin |
| Model | RXYQ20U5Y1B |
| Dimensions (H x W x D) | 1400 mm x 800 mm x 600 mm |
| Weight | 180 kg |
| Power Supply | 400V, 3 Phase, 50Hz |
| Heat Output (Nominal) | 70 kW |
| Efficiency | Up to 95% (Condensing) |
| Fuel Type | Natural Gas |
| Flue Type | Room Sealed (C13, C33) |
| Control System | Electronic with Weather Compensation |
| Main Functions | Heating, Domestic Hot Water, Frost Protection |
| Maintenance | Annual service required; filter cleaning every 3 months |
| Safety Features | Overheat protection, flame failure device, pressure relief valve |
| Spare Parts Availability | Daikin authorized service network |
| Reparability | Modular design, easily replaceable components |
| Installation Requirements | Professional installation by certified engineer |
| Operating Temperature Range | Flow: 30°C to 80°C |
| Noise Level | ≤ 55 dB(A) |
| Certifications | CE, ErP Directive 2009/125/EC |
Frequently Asked Questions - RXYQ20U5Y1B DAIKIN
What type of gas does the Daikin RXYQ20U5Y1B boiler use?
This boiler is designed for natural gas (methane). For other gases, consult a professional.
What is the recommended maintenance schedule for this boiler?
Annual servicing by a qualified technician is mandatory. Additionally, clean the air filter every 3 months and check the system pressure monthly.
Can the RXYQ20U5Y1B be used for both heating and hot water?
Yes, it supports central heating and domestic hot water production with an integrated or external tank.
How do I reset the boiler after a fault?
Press the reset button on the control panel for 3 seconds. If the fault persists, consult the error code and call a technician.
What is the maximum operating pressure?
The maximum allowable pressure is 3 bar (300 kPa). The safety valve opens at 3.5 bar.
Is the boiler suitable for a floor heating system?
Yes, it can be used with underfloor heating when equipped with a mixing valve to limit flow temperature to 45-50°C.
What should I do if the boiler shows an error code E01?
Error E01 indicates ignition failure. Check gas supply, ensure the gas valve is open, and reset the boiler. If repeated, call a service engineer.
How do I adjust the water temperature?
Use the temperature dial on the control panel. For heating, set between 60-80°C; for hot water, between 40-60°C.
Can I install the boiler myself?
No, installation must be carried out by a Gas Safe Registered engineer to comply with regulations and warranty conditions.
Where can I find spare parts for this model?
Spare parts are available through Daikin authorized distributors and service centers. Provide the model number RXYQ20U5Y1B for correct parts.
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USER MANUAL RXYQ20U5Y1B DAIKIN
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Product information
Brand : DAIKIN
Model : RXYQ20U5Y1B
Category : Boiler