Cascade 4 x Thermia Elve L, 400V + Idun Standard, 230V

Cascade of 4 Elve L heat pumps with Idun Standard

This package consists of 4 Elve L outdoor units in cascade, controlled by a single Idun Standard. Together they deliver a heating capacity of up to approx. 48.0 kW (4 × 12.0 kW at 7/35°C). All outdoor units provide heating; only outdoor units 1 and 2 can also produce domestic hot water via an external cylinder.

Each outdoor unit requires an external on/off circulation pump (condenser pump). This is not included, nor are the hot water cylinder, buffer tank and diverter valves. A cascade installation is always built with the Idun Standard; the Idun indoor units with a built-in cylinder are not suitable for this.

Elve + Idun Standard forms a complete, flexible and scalable solution for heating, cooling and domestic hot water. The Elve provides powerful and efficient heating and cooling, while the Idun Standard forms the intelligent heart of the system, managing and controlling the various system components.

The combination is particularly suitable for modular cascade installations. Multiple Elve heat pumps can be installed side by side and centrally controlled via the Idun Standard controller. This makes it easy to adapt the total capacity to the building's heating demand, while maintaining efficient operation even at partial load. The cascade configuration makes the Elve suitable for both larger residential projects and commercial and utility buildings.

The Elve combines powerful performance with quiet operation and reliable heating, even at outdoor temperatures down to -25°C. With a supply temperature of up to 75°C, it is suitable for both modern and existing heating systems. The natural refrigerant R290 (propane) combines high energy efficiency with a low environmental impact.

Thanks to certified sound measurements in accordance with EN 12102, the Elve ranks among the quiet heat pumps in its class. The sound power level is only 46 dB(A) , while in silent mode a sound pressure level of 28 dB(A) at 10 metres is achieved.

The integrated WiFi and 4G connectivity enables easy remote monitoring and management. Combined with the intelligent control of the Idun Standard, this creates a complete and future-proof solution that can be used both as an individual installation and as a basis for larger cascade configurations.

Elve – modulating air-to-water monobloc heat pump
- Heating capacity: 3.7–12.0 kW (7/35°C)
- Heating operating range: -25 to +40°C
- Cooling capacity: 3.5–9.3 kW (35/7°C) and 4.3–10.5 kW (35/18°C)
- Cooling operating range: +15 to +45°C
- Sound power level EN 12102 LWA: 46 dB(A)
- Sound pressure level in silent mode LpA at 4 m: 32 dB(A)
- Energy efficiency class: product A+++ / system A+++
- COP: 5.4 (7/35°C, 4.3 kWout) / COP 3.2 (7/55°C, 4.1 kWout)
- COP: 3.2 (-7/35°C, 10.1 kWout) / COP 2.5 (-7/55°C, 10.0 kWout)
- COP: 2.0 (-7/65°C, 9.7 kWout) / COP 1.5 (-7/75°C, 9.0 kWout)
- SCOP: 4.96 (35°C, av. climate) / SCOP 3.99 (55°C, av. climate)
- Compressor power supply: 3 × 400 V + N, 10 A
- Controller power supply: 1 × 230 V + N, 16 A
- Twin rotary compressor
- Refrigerant: R290 (propane), 1.6 kg
- Dimensions W × D × H: 1170 × 727 × 1144 mm
- Weight: 166 kg
- Heating & cooling / 2-year warranty

Idun Standard – intelligent indoor unit
- Intelligent integrated controller
- Suitable for heating, cooling and domestic hot water
- Suitable for cascade installations with multiple Elve heat pumps
- Supports multiple heating/mixing circuits
- Flexible integration of various system components
- 230 V power supply
- Dimensions W × D × H: 400 × 159 × 550 mm
- Weight: 10 kg