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The intelligent Calenta Ace is ready for the (digital) future, thanks to the new device control (eSmart Inside). The Calenta Ace boiler features brass hydro blocks. The heat exchanger used in the Calenta Ace is treated with a special surface coating, eliminating the need for physical cleaning. Installing this boiler is simple, as the mounting bracket includes an integrated spirit level.
The system can optionally be expanded with a (semi-)automatic refill unit, which allows the system to be refilled automatically and intelligently via the boiler control panel, the eTwist, or the convenient eTwist app.
Technical Specifications:
| Feature | Value |
|---|---|
| Brand | Remeha |
| Supplier Code | 7672226 |
| EAN Code | 8713809289034 |
| Width | 450 mm |
| Height | 690 mm |
| Depth | 450 mm |
| Power Supply Voltage | 230 V |
| Number of Phases | 1 |
| Energy Efficiency Class | A |
| Material Quality | Other |
| Supply Connection | Compression fitting |
| Return Connection | Other |
| Frequency | 50 Hz |
| Connection Voltage | 196 - 253 V |
| Closed System | Yes |
| SEER (Ns) at Medium Conditions | 94 |
| SEER (Ns) at Cold Conditions | 99.2 |
| SEER (Ns) at Warm Conditions | 89.4 |
| Additional Power Consumption at Full Load (ELmax) | 0.04 kW |
| Useful Heat Output at High Temperature (P4) | 24.8 kW |
| Efficiency at High Temperature (n4) | 89.4 % |
| Additional Power Consumption in Standby Mode (Psb) | 0 kW |
| Standby Heat Loss (Pstby) | 0.078 kW |
| Max. Hydrogen Mixing Percentage with Natural Gas | 20 % |
| Suitable for Low-Calorific Natural Gas | Factory Setting |
| Suitable for High-Calorific Natural Gas | Manually Adjustable |
| Suitable for Propane | Conversion Kit Required (Not Included) |
| Suitable for Butane | Not Suitable |
| Suitable for Methane | Manually Adjustable |
| Suitable for LPG | Not Suitable |
| Suitable for Hydrogen | Manually Adjustable |
| Heat Exchanger Material | Aluminum |
| Built-in Pump Control | Yes |
| Gaskeur VR/SV | Yes |
| Gaskeur NZ | No |
| Nominal Lower Load | 25 kW |
| Nominal Upper Load | 27.8 kW |
| Min. Operating Pressure | 0.8 bar |
| Min. Return Temperature | 20 °C |
| Max. Gas Supply Pressure | 30 mbar |
| Built-in Weather-Dependent Controller | No |
| Built-in Expansion Vessel | No |
| Water Resistance at dT 20 °C | 25 kPa |
| Nominal Power 80-60 °C | 24.8 kW |
| Max. Supply Temperature (Operating Temperature) | 90 °C |
| Max. Operating Pressure | 3 bar |
| Built-in Fill/Drain Valve | No |
| Built-in Overpressure Valve | Yes |
| External Pipe Diameter Supply | 22 mm |
| External Pipe Diameter Return | 22 mm |
| Fuel Connection | Other |
| External Pipe Diameter Fuel | 15 mm |
| Air Supply Connection | Push-Fit |
| Nominal Air Supply Duct Diameter | 100 mm |
| Flue Gas Connection | Push-Fit |
| Condensate Connection | Other |
| External Pipe Diameter Condensate | 25 mm |
| Min. Gas Supply Pressure | 20 mbar |
| Suitable for Natural Gas | Yes |
| Gaskeur VR | No |
| Nominal Flue Gas Duct Diameter | 60 mm |
| Burner Control High/Low | No |
| Burner Control Modulating | Yes |
| External Pipe Diameter Expansion Connection | 0 mm |
| Built-in Manometer | Yes |
| Condensing | Yes |
| Gaskeur HR | Yes |
| Efficiency | 107 % |
| Pilot Flame | No |
| Second Return Connection | No |
| Control Signal On/Off | Yes |
| Control Signal High/Low | No |
| Control Signal 0-10V | Yes |
| Control Signal OpenTherm | Yes |
| Operation as Open System (Air Supply Possible) | Yes |
| Nominal Power 50-30 °C | 25.5 kW |
| Max. Allowable Operating Pressure | 3 bar |
| Conversion Kit Required | Yes |
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