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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 hydraulic blocks. The heat exchanger used in the Calenta Ace is treated with a surface coating, meaning it does not need to be physically cleaned. Hanging this boiler is easy as the mounting bracket has an integrated spirit level.
The system can optionally be expanded with a (semi-)automatic refill unit that allows the system to be automatically and intelligently refilled via the boiler’s control panel, the eTwist, or the handy eTwist app.
This version is equipped with an eccentric flue gas outlet.
Technical Specifications:
| Feature | Value |
|---|---|
| Brand | Remeha |
| Supplier Code | 7649964 |
| EAN Code | 8713809288242 |
| Width | 450 mm |
| Height | 690 mm |
| Depth | 450 mm |
| Power Supply Voltage | 230 V |
| Number of Phases | 1 |
| Material Quality | Other |
| Inlet Connection | Compression fitting |
| Return Connection | Compression fitting |
| Nominal Voltage | 196 - 253 V |
| Frequency | 50 Hz |
| Closed Design | Yes |
| Nominal Hot Water Output | 38.5 kW |
| Nominal Upper Hot Water Load | 43.1 kW |
| Nominal Lower Hot Water Load | 38.8 kW |
| Energy Efficiency of Water Heating (Nwh) | 87 % |
| SEER (Ns) under average conditions | 95 |
| SEER (Ns) under colder conditions | 99.6 |
| SEER (Ns) under warmer conditions | 89.3 |
| Capacity Profile | XXL |
| Energy Efficiency Class for Space Heating | A |
| Energy Efficiency Class for Water Heating | A |
| Nominal Diameter of Hot Water Outlet | DN 15 |
| Additional Electricity Consumption at Full Load (ELmax) | 0.005 kW |
| Useful Heat Output at Nominal Output and High Temperature Operation (P4) | 34.5 kW |
| Useful Efficiency at Nominal Output and High Temperature Operation (n4) | 89.3 % |
| Additional Electricity Consumption in Standby Mode (Psb) | 0.004 kW |
| Standby Heat Loss (Pstby) | 0.054 kW |
| With Built-in Economizer | Yes |
| Energy Efficiency for Space Heating | 95 % |
| Hot Water Flow Rate according to EN 13203-1 | 20.3 l/min |
| Heat Exchanger Material | Aluminum |
| Adjustable Heating Capacity | Yes |
| Nominal Diameter of Cold Water Inlet | DN 15 |
| Tap Threshold | 1.5 l/min |
| Built-in Pump Switching | Yes |
| Gas Approval VR/SV | No |
| Gas Approval NZ | Yes |
| CW Label | 5 |
| Nominal Lower Load | 34.8 kW |
| Nominal Upper Load | 38.7 kW |
| Minimum Operating Pressure | 0.8 bar |
| Minimum Return Temperature | 20 °C |
| Maximum Gas Inlet Pressure | 30 mbar |
| Hot Water Capacity at 60 °C | 11 l/min |
| Built-in Weather-Dependent Controller | Yes |
| Built-in Expansion Vessel | No |
| Hydraulic Resistance at dT 20 °C | 46 kPa |
| Nominal Power at 80-60 °C | 34.5 kW |
| Maximum Supply Temperature (Operating Temperature) | 90 °C |
| Maximum Operating Pressure | 3 bar |
| Built-in Fill/Drain Valve | No |
| Built-in Pressure Relief Valve | Yes |
| External Pipe Diameter for Inlet | 22 mm |
| External Pipe Diameter for Return | 22 mm |
| Fuel Connection | Compression fitting |
| External Pipe Diameter for Fuel | 15 mm |
| Air Supply Connection | Push-in |
| Nominal Pipe Diameter for Air Supply | 80 mm |
| Flue Gas Outlet Connection | Push-in |
| 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 Inlet Connection | Compression fitting |
| Hot Water Inlet Connection | Compression fitting |
| Nominal Pipe Diameter for Flue Gas Outlet | 80 mm |
| Burner Control High/Low | No |
| Modulating Burner Control | Yes |
| Built-in Manometer | Yes |
| Condensing | Yes |
| Gas Approval HR | Yes |
| Efficiency | 99.1 % |
| 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 Possible in Open Mode (Air Supply) | Yes |
| Nominal Power 50-30 °C | 35.6 kW |
| Suitable for Propane | Yes |
| Suitable for Butane | No |
| Suitable for Methane | Yes |
| Maximum Allowed Operating Pressure | 3 bar |
| Nominal Diameter for Inlet | Other |
| Nominal Diameter for Return | Other |
| Nominal Diameter for Fuel | DN 15 |
| Hot Water Storage | 1 l |
| Nominal Diameter for Condensate | DN 25 |
| Conversion Kit Required | No |
| Built-in Inlet Combination | No |
| CW Label | 5 |
| Gas Approval HR | Yes |
| Gas Approval NZ | Yes |
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