geoTHERM 22kW, 30kW, 38kW and 46kW (discontinued)
Ground source heat pump
- "Quiet Mark" accredited thanks to geoTHERM multi-stage sound insulation
- Energy yield display
- MCS accredited, RHI eligible
Overview
Attention: This product is now discontinued.
Vaillant’s geoTHERM range of ground source heat pumps provides maximum comfort and efficiency, combined with simple installation, smooth operation and advanced diagnostics that have become synonymous with the Vaillant brand. geoTHERM is compatible with domestic, and with a range of larger outputs, can serve commercial properties or large homes which operate on a three-phase electricity supply.
As part of a well-insulated home, the 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.
geoTHERM was the first heat pump to be “Quiet Mark” accredited from Vaillant, which was quickly followed by the air source heat pump, aroTHERM and the ground source heat pump, flexoTHERM 230V and 400V.
Features and benefits
- Models are available in four outputs 22kW, 30kW, 38kW and 46kW
- Evaporator with injection system - provides increased heat transfer
- Maximum flow temperature of up to 62°C for domestic hot water
- Weather-compensated energy-balance control unit with graphic display of the environmental yield. The inbuilt control shows in a clear bar chart diagram showing the energy absorbed from the ground loop, proving the actual system efficiency
- Multi-stage Sound Insulation (MSI) for quiet operation
- Passive cooling function
- Available to use in cascade
- Works efficiently with low floor temperature heating systems, either underfloor or radiators sized to suit
- MCS accredited and RHI eligible
- Commissioning available by Vaillant Service
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 |
Related Products
Related Products
Heat pump cylinders
- Complete with three-way valve and adapter, making it easier and saving time on install.
- Comes with unvented kits and expansion vessel
- Inline front connections, reducing piping issues in smaller, more compact areas
Downloads
Downloads
Alternative products
Alternative products
aroTHERM air source heat pump
- Blue fin coated evaporator as standard
- Monobloc hermetically sealed air to water heat pump
- Ready for future European legislation
aroTHERM hybrid air source heat pump
- MCS accredited
- Suitable for domestic and commercial properties
- Compatible with all boiler systems including gas, LPG and oil
flexoTHERM 230V 5kW, 8kW and 11kW
- Connects to two different sources - Ground or water
- ErP rated A+++ when installed with VRC 700 or VRC 700f
- "Quiet Mark" accredited by the Noise Abatement Society
flexoTHERM 400V 5, 8,11,15 and 19kW
- Connects to three different sources - ground, water or air
- ErP rated A+++ when installed with VRC 700
- "Quiet Mark" accredited by the Noise Abatement Society