geoTHERM ground source heat pump
400V ground source heat pump
- Available in four models covering 22, 30, 38 and 46kW
- High capacity outputs for larger dwellings and developments
- Advanced diagnostics for maximised performance
- Dimensions in mm : W 1200 x H 760 x D 900
Overview
The geoTHERM range of large outputs ground source heat pumps are designed for larger dwellings and developments, and can provide maximum comfort and efficiency.
Combining simple installation, smooth operation and advanced diagnostics, a geoTHERM system provides the perfect solution for off-gas properties, using oil or LPG in particular, by accessing a sustainable energy source, helping to protect against fluctuating prices of fuel, and also eliminating the need for fuel storage.
Features & benefits
- Available in 400V - geoTHERM is available in four outputs - 22kW, 30kW, 38kW and 46kW
- Evaporator with injection system - Provides increased heat transfer
- Exceptionally quiet - Multi-stage Sound Insulation (MSI) for quiet operation, geoTHERM has earned the ‘Quiet Mark’ approval
- Compatible with underfloor heating and radiators - Works efficiently with low floor temperature heating systems, either underfloor or radiators sized to suit
- Ability to cascade - Suitable for larger dwellings and developments
- Maximum flow temperature of up to 62°C for domestic hot water - Perfect for central heating and hot water requirements
GSHP Systems Installation and Commissioning
This course will guide you through the pre-installation system checks, product specification, control options, system accessories commissioning, system setup and maintenance of the GSHP range.
Scandia Hus Case Study
Energy Efficient timber frame self-built show home in West Sussex, demonstrates an eco-friendly, reliable and achievable renewable heating system in action.
Vaillant worked together with Scandia-Hus to demonstrate a renewable heating system in action. The timber framed show home, based in West Sussex, combines energy and efficiency with all the comforts of a stylish, modern home and shows the reliability and potential of renewable systems in a modern self-build home. The use of the Vaillant geoTHERM ground source heat pump makes an eco-friendly home attainable.
Specifications
Specifications
| Unit | 22kW | 30kW | 38kW | 46kW | |
|---|---|---|---|---|---|
| Heat pump type | Brine/Water heat pump | ||||
| Product-side flow/return heating connections | G1 ½” | G1 ½” | G1 ½” | G1 ½” | |
| Product-side flow/return heat source connections | G1 ½” | G1 ½” | G1 ½” | G1 ½” | |
| Product dimensions, heating without connection | mm | 1200 | 1200 | 1200 | 1200 |
| Product dimensions, width | mm | 760 | 760 | 760 | 760 |
| Product dimensions, depth without column | mm | 900 | 900 | 900 | 900 |
| Weight, with packaging | kg | 356 | 370 | 394 | 417 |
| Weight, without packaging | kg | 326 | 340 | 364 | 387 |
| Weight, ready for operation | kg | 341 | 359 | 386 | 414 |
| Permissible ambient temperature | 7 .. 2 | 7 .. 2 | 7 .. 2 | 7 .. 2 | |
| PERFORMANCE DATA | |||||
| Heat exchanger performance data | The following performance data is applicable to new products with clean heat exchangers | ||||
| Heating output B0/W35 T 5K | kW | 21.5 | 30.9 | 37.7 | 45.5 |
| Power consumption B0/W35 T 5K | kW | 4.8 | 6.7 | 8.4 | 10.0 |
| Output figures B0/W35 T 5K/coefficient of performance EN 14511 | 4.4 | 4.5 | 4.4 | 4.4 | |
| Power consumption B0/W55 T 8K | kW | 20.1 | 28.3 | 34.6 | 41.4 |
| Power consumption B0/W55 T 6K without pumps | kW | 6.2 | 8.9 | 11 | 13 |
| Output figures B0/W55 T 8K/coefficient of performance En 14511 | 3.2 | 3.2 | 3.1 | 3.2 | |
| Sound level B0/W35 En 12102/EN14511 | dB(A) | 54 | 55 | 56 | 61 |
| Application limits: At the same volume flow rates as for the nominal output test under standard nominal conditions with nominal flows and brine circuit T 3K/heating circuit T 5K. Operation of the pump outside the application limits results in the heat pump being switched off by the internal control and safety device | B-10/W25 B-10/W50 B-5/W62 B20/W62 B20/W25 | ||||
| BRINE CIRCUIT | |||||
| Brine fluid: Ethylene glycol/water ratio | 3/7 | 3/7 | 3/7 | 3/7 | |
| Maximum brine fluid operating pressure | MPa (bar) | 0.3 (3.0) | 0.3 (3.0) | 0.3 (3.0) | 0.3 (3.0) |
| Minimum source inlet temperature (hot brine) in heating mode | °C | -10 | -10 | -10 | -10 |
| Maximum source inlet temperature (hot brine) in heating mode | °C | 20 | 20 | 20 | 20 |
| Volume of the heat source circuit in the heat pump | l | 6.2 | 8.6 | 10.0 | 12.4 |
| Nominal flow at T 3K | m3/h | 5.1 | 7.6 | 8.5 | 10.7 |
| Minimum permissible volume flow | m3/h | 3.8 | 5.3 | 7.0 | 8.4 |
| Maximum permissible volume flow | m3/h | 5.5 | 8.3 | 9.3 | 11.8 |
| Pressure loss with nominal flow at T 3K | kPa | 22.0 | 32.0 | 36.0 | 50.0 |
| Materials | Cu CuZn alloy Stainless steel Fe EPDM | ||||
| HEATING CIRCUIT | |||||
| Maximum heating circuit operating pressure | MPa (bar) | 0.3 (3.0) | 0.3 (3.0) | 0.3 (3.0) | 0.3 (3.0) |
| Minimum heating mode flow temperature | °C | 25 | 25 | 25 | 25 |
| Maximum heating mode flow temperature | °C | 62 | 62 | 62 | 62 |
| Heating circuit water contents in the heat pump | l | 8.3 | 10.3 | 12.0 | 14.1 |
| Nominal flow at T 5K | m3/h | 3.8 | 5.4 | 6.5 | 7.8 |
| Minimum permissible volume flow | m3/h | 2.1 | 2.8 | 4.0 | 4.2 |
| Maximum permissible volume flow | m3/h | 4.2 | 5.7 | 7.1 | 8.5 |
| Pressure loss with nominal flow at T 5K | kPa | 7.2 | 9.3 | 11.0 | 20.0 |
| Materials | Cu CuZn alloy Stainless steel Fe EPDM | ||||
| REFRIGERRANT CIRCUIT | |||||
| Refrigerant type | R 407 C | R 407 C | R 407 C | R 407 C | |
| Refrigerant content for the refrigerant circuit in the heat pump | kg | 4.10 | 5.99 | 6.70 | 8.60 |
| Maximum operating pressure: refrigerant | MPa (bar) | 2.9 (29.0) | 2.9 (29.0) | 2.9 (29.0) | 2.9 (29.0) |
| Compressor type | Scroll | Scroll | Scroll | Scroll | |
| Oil type | Ester (EMKARATE RL-32-3MAF) | ||||
| Oil filling quantity | l | 4.0 | 4.0 | 4.14 | 4.14 |
| ELECTRICS | |||||
| Rated voltage of the compressor/heating circuit | 3/NE/PE 400 V 50 Hz | ||||
| Control circuit rated voltage | 1~N/PE 230 V 50 Hz | ||||
| Rated voltage of the auxiliary heater (on-site) | 3/N/PE 400 V 50 Hz | ||||
| Phase shifting | cos = 0.7 to 0.84 | cos = 0.72 to 0.83 | cos = 0.76 to 0.86 | cos = 0.75 to 0.86 | |
| Required network impedance Zmax with in-rush current limiter | A | 0.472 | 0.450 | 0.270 | 0.100 |
| Fuse type, characteristic C, slow-blow, three-pole switching (disconnection of the three mains connection lines in one switching operation) | A | 20 | 25 | 32 | 40 |
| Optional on-site residual-current circuit breaker | RCCB type A (type A pulse-current-sensitive residual-current circuit breakers) or RCCB type B 9type B universal-current-sensitive residual- current circuit breakers) | ||||
| In-rush current without in-rush current limiter | A | 99 | 127 | 167 | 198 |
| In-rush current with in-rush current limiter | A | 44 | 65 | 85 | 110 |
| Minimum electrical power consumption for B5/W35 | kW | 5.0 | 6.4 | 8.5 | 10.1 |
| Maximum electrical power consumption for B20/W60 | kW | 10.0 | 12.0 | 16.0 | 18.0 |
| Maximum electrical power consumption for auxiliary heater | kW | 3 x 2.3 | 3 x 2.3 | 3 x 2.3 | 3 x 2.3 |
| EN 60529 level of protection | IP 10B | IP 10B | IP 10B | IP 10B | |