The intelligent Calenta Ace is ready for the (digital) future – thanks to the new device control system (eSmart Inside). The Calenta Ace boiler is equipped with brass hydroblocks. The heat exchanger used in the Calenta Ace has a surface treatment, which means it doesn't need to be physically cleaned. Mounting this boiler is easy, as the mounting bracket has an integrated spirit level.
The system can be optionally expanded with a (semi)-automatic refill unit, allowing the system to be automatically and intelligently refilled via the boiler's control panel, the eTwist, or the convenient eTwist app.
This version is equipped with a concentric flue gas discharge.
| Feature | Value |
|---|---|
| Brand | Remeha |
| Supplier Code | 7672228 |
| EAN Code | 8713809289058 |
| Discount Group | 005 |
| Width | 450 mm |
| Height | 690 mm |
| Depth | 450 mm |
| Supply Voltage | 230 V |
| Number of Phases | 1 |
| Material Quality | Other |
| Inlet Connection | Compression |
| Return Connection | Compression |
| Nominal Voltage | 196 - 253 V |
| Frequency | 50 Hz |
| Closed Version | Yes |
| Nominal Domestic Hot Water Output | 27.8 kW |
| Nominal Upper Load Domestic Hot Water | 31.1 kW |
| Nominal Lower Load Domestic Hot Water | 28 kW |
| Energy Efficiency for Water Heating (Nwh) | 88 % |
| SEER (Ns) in Average Conditions | 94 |
| SEER (Ns) in Cooler Conditions | 99.2 |
| SEER (Ns) in Warmer Conditions | 89.4 |
| Capacity Profile | XL |
| Energy Efficiency Class for Space Heating | A |
| Energy Efficiency Class for Water Heating | A |
| Nominal Diameter Hot Water | DN 15 |
| Additional Power Consumption at Full Load (ELmax) | 0.004 kW |
| Useful Heat Output at Nominal Heat Output and Operation at High Temperature (P4) | 24.8 kW |
| Useful Efficiency at Nominal Heat Output and Operation at High Temperature (n4) | 89.4 % |
| Additional Power Consumption in Standby Mode (Psb) | 0.004 kW |
| Standby Heat Loss (Pstby) | 0.078 kW |
| With Built-in Economizer | Yes |
| Energy Efficiency for Space Heating | 94 % |
| Hot Water Flow Rate according to EN 13203-1 | 14.5 l/min |
| Heat Exchanger Material | Aluminum |
| Adjustable Heating Capacity | Yes |
| Nominal Diameter Cold Water | DN 15 |
| Flow Threshold | 1.5 l/min |
| Built-in Pump Control | Yes |
| Gas Certification VR/SV | No |
| Gas Certification NZ | Yes |
| CW Label | 4 |
| Nominal Lower Load | 25 kW |
| Nominal Upper Load | 27.8 kW |
| Min. Operating Pressure | 0.8 bar |
| Min. Return Temperature | 20 °C |
| Max. Gas Pressure | 30 mbar |
| Hot Water Capacity at 60 °C | 8.2 l/min |
| Built-in Weather Dependent Controller | Yes |
| Built-in Expansion Tank | No |
| Hydraulic Resistance at ΔT 20 °C | 35 kPa |
| Nominal Power 80-60 °C | 24.8 kW |
| Max. Flow Temperature (Operating Temperature) | 90 °C |
| Max. Operating Pressure | 3 bar |
| Built-in Fill/Drain Valve | No |
| Built-in Pressure Relief Valve | Yes |
| Outer Pipe Diameter Inlet | 22 mm |
| Outer Pipe Diameter Return | 22 mm |
| Fuel Connection | Compression |
| Outer Pipe Diameter Fuel | 15 mm |
| Air Supply Connection | Push-fit |
| Nominal Air Supply Channel Diameter | 100 mm |
| Flue Gas Discharge Connection | Push-fit |
| Outer Pipe Diameter Cold Water | 15 mm |
| Outer Pipe Diameter Hot Water | 15 mm |
| Condensate Connection | Other |
| Outer Pipe Diameter Condensate | 25 mm |
| Min. Gas Pressure | 20 mbar |
| Suitable for Natural Gas | Yes |
| Gas Certification VR | No |
| Nominal Flue Gas Channel Diameter | 60 mm |
| Burner Control High/Low | No |
| Burner Control Modulating | Yes |
| Built-in Manometer | Yes |
| Condensing | Yes |
| Gas Certification HR | Yes |
| Efficiency | 99.2 % |
| 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 Version (Air Supply) Possible | Yes |
| Nominal Power 50-30 °C | 25.5 kW |
| Suitable for Propane | Yes |
| Suitable for Butane | No |
| Suitable for Methane | Yes |
| Max. Permissible Operating Pressure | 3 bar |
| Nominal Diameter Inlet | Other |
| Nominal Diameter Return | Other |
| Nominal Diameter Fuel | DN 15 |
| Hot Water Storage | 1 l |
| Nominal Diameter Condensate | DN 25 |
| Conversion Kit Required | No |
| Built-in Inlet Combination | No |
| CW Label | 4 |
| Gas Certification HR | Yes |
| Gas Certification NZ | Yes |
