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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 is equipped with brass hydraulic blocks. The heat exchanger used in the Calenta Ace is surface-treated, meaning it does not need to be physically cleaned. Hanging this boiler is easy as the mounting bracket comes with an integrated spirit level.
The system can be optionally expanded with a (semi-)automatic refill unit, which allows the system to be refilled automatically and intelligently via the boiler's control panel, the eTwist, or through the convenient eTwist app.
This model features an eccentric flue gas discharge.
Technical Specifications:
| Feature | Value |
|---|---|
| Brand | Remeha |
| Supplier Code | 7649960 |
| EAN Code | 8713809288235 |
| Width | 450 mm |
| Height | 690 mm |
| Depth | 450 mm |
| Supply Voltage | 230 V |
| Number of Phases | 1 |
| Material Quality | Other |
| Inlet Connection | Press Fitting |
| Return Connection | Press Fitting |
| Nominal Voltage | 196 - 253 V |
| Frequency | 50 Hz |
| Closed Model | Yes |
| Nominal Domestic Hot Water Power | 27.8 kW |
| Nominal Maximum Domestic Hot Water Power | 31.1 kW |
| Nominal Minimum Domestic Hot Water Power | 28 kW |
| Energy Efficiency for Water Heating (Nwh) | 88 % |
| SEER (Ns) in average conditions | 94 |
| SEER (Ns) in colder 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 for Domestic Hot Water | DN 15 |
| Supplementary Power Consumption at Full Load (ELmax) | 0.004 kW |
| Useful Heat Output at Nominal Heat Output and High-Temperature Operation (P4) | 24.8 kW |
| Useful Efficiency at Nominal Heat Output and High-Temperature Operation (n4) | 89.4 % |
| Supplementary 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 | Aluminium |
| Adjustable Heating Power | Yes |
| Nominal Diameter for Cold Water | DN 15 |
| Hot Water Flow Threshold | 1.5 l/min |
| Built-in Pump Switching | Yes |
| Gas Approval VR/SV | No |
| Gas Approval NZ | Yes |
| CW Label | 4 |
| Nominal Minimum Load | 25 kW |
| Nominal Maximum Load | 27.8 kW |
| Minimum Operating Pressure | 0.8 bar |
| Minimum Return Temperature | 20 °C |
| Maximum Gas Inlet Pressure | 30 mbar |
| Domestic Hot Water Capacity at 60 °C | 8.2 l/min |
| Built-in Weather-Dependent Regulator | Yes |
| Built-in Expansion Vessel | No |
| Hydraulic Resistance at dT 20 °C | 35 kPa |
| Nominal Power 80-60 °C | 24.8 kW |
| Maximum Supply Temperature (Operating Temp.) | 90 °C |
| Maximum Operating Pressure | 3 bar |
| Built-in Fill/Drain Valve | No |
| Built-in Overpressure Valve | Yes |
| External Pipe Diameter for Supply | 22 mm |
| External Pipe Diameter for Return | 22 mm |
| Fuel Connection | Press Fitting |
| External Pipe Diameter for Fuel | 15 mm |
| Air Supply Connection | Spigot |
| Nominal Channel Diameter for Air Supply | 80 mm |
| Flue Gas Discharge Connection | Spigot |
| External Pipe Diameter for Cold Water | 15 mm |
| External Pipe Diameter for Hot Water | 15 mm |
| Condensate Connection | Other |
| External Pipe Diameter for Condensate | 25 mm |
| Minimum Gas Inlet Pressure | 20 mbar |
| Suitable for Natural Gas | Yes |
| Gas Approval VR | No |
| Cold Water Supply Connection | Press Fitting |
| Hot Water Supply Connection | Press Fitting |
| Nominal Channel Diameter for Flue Gas Discharge | 80 mm |
| Burner Control High/Low | No |
| Burner Control Modulating | Yes |
| Built-in Manometer | Yes |
| Condensing | Yes |
| Gas Approval 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 |
| Open Operation Possible (Air Supply) | Yes |
| Nominal Power 50-30 °C | 25.5 kW |
| Suitable for Propane | Yes |
| Suitable for Butane | No |
| Suitable for Methane | Yes |
| Maximum Allowable Operating Pressure | 3 bar |
| Nominal Diameter for Supply | Other |
| Nominal Diameter for Return | Other |
| Nominal Diameter for Fuel | DN 15 |
| Domestic Hot Water Stock | 1 l |
| Nominal Diameter for Condensate | DN 25 |
| Conversion Kit Required | No |
| Built-in Inlet Combination | No |
| CW Label | 4 |
| Gas Approval HR | Yes |
| Gas Approval NZ | Yes |
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