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Technical Specifications
| Feature | Value |
|---|---|
| Brand | Vaillant |
| Supplier Code | 0010018749 |
| EAN Code | 4024074753064 |
| Discount Group | 015 |
| Width | 440 mm |
| Height | 800 mm |
| Depth | 338 mm |
| Nominal Voltage | 230 V |
| Number of Phases | 1 |
| Flow Connection | Compression |
| Return Connection | Compression |
| Nominal Voltage | 230 - 230 |
| Frequency | 50 Hz |
| Closed Design | No |
| Nominal Hot Water Output | 25.1 kW |
| Nominal Upper Load Hot Water | 29.6 kW |
| Nominal Lower Load Hot Water | 28.9 kW |
| Energy Efficiency for Water Heating (Nwh) | 75 % |
| SEER (Ns) under Average Conditions | 77 |
| SEER (Ns) under Colder Conditions | 80.4 |
| SEER (Ns) under Warmer Conditions | 80.7 |
| Capacity Profile | XL |
| Energy Efficiency Class for Space Heating | C |
| Energy Efficiency Class for Water Heating | B |
| Nominal Diameter of Hot Water | 1/2" (15) |
| Supplementary Power Consumption at Full Load (ELmax) | 0.01 kW |
| Useful Heat Output at Nominal Heat Output and High-Temperature Operation (P4) | 23.8 kW |
| Useful Efficiency at Nominal Heat Output and High-Temperature Operation (n4) | 80.7 % |
| Supplementary Power Consumption in Standby Mode (Psb) | 0.01 kW |
| Standby Heat Loss (Pstby) | 0.13 kW |
| With Built-in Economizer | No |
| Max. Hydrogen Content for Mixing with NAT Gas | 0 % |
| Suitable for Low Calorific Value Natural Gas | Standard Factory Setting |
| Suitable for High Calorific Value Natural Gas | Manually Adjustable |
| Suitable for Propane | Not Suitable |
| Suitable for Butane | Not Suitable |
| Suitable for Methane | Not Suitable |
| Suitable for LPG | Not Suitable |
| Suitable for Hydrogen | Not Suitable |
| Energy Efficiency Class for Space Heating (811/2013/EU) | C |
| Energy Efficiency Class for Water Heating (811/2013/EU) | B |
| Nominal Load | 11.9 - 29.6 kW |
| Gas Supply Pressure | 20 - 30 mbar |
| Nominal Load for Hot Water | 11.9 - 32 kW |
| ηs, h (Seasonal Energy Efficiency for Space Heating) | 77 % |
| Heat Exchanger Material | Copper |
| Adjustable Heating Power | Yes |
| Nominal Diameter of Cold Water | 1/2" (15) |
| Flow Threshold | 1.5 l/min |
| Built-in Pump Switching | Yes |
| Gas Approval VR/SV | No |
| Gas Approval NZ | No |
| Nominal Lower Load | 26.6 kW |
| Nominal Upper Load | 29.6 kW |
| Min. Operating Pressure | 1 bar |
| Min. Return Temperature | 1 °C |
| Max. Gas Supply Pressure | 30 mbar |
| Hot Water Capacity at 60°C | 6.1 l/min |
| Built-in Weather-Dependent Control | No |
| Built-in Expansion Vessel | No |
| Nominal Output 80-60 °C | 24 kW |
| Max. Flow Temperature (Operating Temperature) | 85 °C |
| Max. Operating Pressure | 3 bar |
| Built-in Filling/Drain Valve | No |
| Built-in Overpressure Valve | No |
| Outer Pipe Diameter for Flow | 22 mm |
| Outer Pipe Diameter for Return | 22 mm |
| Fuel Connection | Compression |
| Outer Pipe Diameter for Fuel | 15 mm |
| Air Supply Connection | Other |
| Nominal Channel Diameter for Air Supply | 0 mm |
| Flue Gas Connection | Socket |
| Outer Pipe Diameter for Cold Water | 15 mm |
| Outer Pipe Diameter for Hot Water | 15 mm |
| Condensate Connection | Other |
| Min. Gas Supply Pressure | 20 mbar |
| Suitable for Natural Gas | Yes |
| Gas Approval VR | No |
| Cold Water Connection | Compression |
| Hot Water Connection | Compression |
| Nominal Channel Diameter for Flue Gas Exhaust | 130 mm |
| Burner Control High/Low | No |
| Modulating Burner Control | Yes |
| Built-in Manometer | Yes |
| Gas Approval HR | No |
| Efficiency | 90 % |
| Pilot Flame | No |
| Second Return Connection | No |
| Control Signal On/Off | Yes |
| Control Signal High/Low | No |
| Control Signal 0-10V | No |
| Control Signal OpenTherm | No |
| Operation as Open Design (Air Supply) Possible | Yes |
| Suitable for Propane | No |
| Suitable for Butane | No |
| Suitable for Methane | No |
| Max. Allowable Operating Pressure | 3 bar |
| Nominal Diameter for Flow | 3/4" (20) |
| Nominal Diameter for Return | 3/4" (20) |
| Nominal Diameter for Fuel | 1/2" (15) |
| Hot Water Storage | 0 l |
| Conversion Kit Required | No |
| Operating Pressure | 0.5 - 3 bar |
| Built-in Inlet Combination | No |
| Gas Approval HR | No |
| Gas Approval NZ | No |
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