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flexoTHERM 400V, 5, 8,11,15 and 19kW

Ground source heat pump with Green iQ

  • 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
  • Green iQ for the highest energy efficiency
  • High seasonal SCoP value

Overview

A modern, refreshing take on the heat pump system, the new flexoTHERM with Green iQ comes in 230V and in 400V.

flexoTHERM 400V can be a ground source heat pump when connected to a group loop, a water source heat pump when connected with our fluoCOLLECT or an air source heat pump when connected to the Vaillant aroCOLLECT. flexoTHERM offers state of the art EVI compressor technology giving extremely high efficiency and heating performance. When installed with theVRC 700 weather compensating control, flexoTHERM becomes ErP rated A+++.

flexoTHERM has also been awarded "Quiet Mark", issued by the Noise Abatement Society, thanks to its exceptionally low operating noise levels. It sounds no louder than a standard domestic fridge of 42dBA. flexoTHERM is MCS accredited and RHI eligible. flexoTHERM is the third heat pump to be awarded "Quiet Mark" alongside the aroTHERM air-to-water heat pump and geoTHERM ground source heat pump.

Features and benefits

  • Available in 5kW, 8kW, 11kW, 15kW and 19kW outputs
  • Highest ErP rating of A+++ when installed with VRC 700
  • High quality, well-engineered product of outstanding quality which is both sustainable and ready for the future
  • Integral components include built-in ground and heating circulation pumps and three-way diverter valve allowing for easy installation
  • An extended range of Vaillant accessories include water heat exchanger module, passive cooling module and brine filling station
  • Flexible source options include ground, water and air source using flexoTHERM 400V
  • Excellent customer service, delivering market leading design, installation and commissioning support to meet all requirements
  • Exceptionally quiet with noise levels comparable to a modern fridge 42dBA

Specifications

Specifications

flexoTHERM 400VUnit5kW
400V
8kW
400V
11kW
400V
15kW
400V
19kW
400V
Product dimensions, height (without adjustable feet)mm11831183118311831183
Product dimensions, widthmm595595595595595
Product dimensions, depthmm600600600600600
Weight, with packagingkg155170178185197
Weight, without packagingkg145160168176187
Weight, ready for operationkg151167175187200
Electrical data
Heating circuit / compressorV / Hz3~/N/PE 400 / 503~/N/PE 400 / 503~/N/PE 400 / 503~/N/PE 400 / 503~/N/PE 400 / 50
Control circuit rated voltageV / Hz1~/N/PE 230 / 501~/N/PE 230 / 501~/N/PE 230 / 501~/N/PE 230 / 501~/N/PE 230 / 50
Auxiliary heatingV / Hz3~/N/PE 400 / 503~/N/PE 400 / 503~/N/PE 400 / 503~/N/PE 400 / 503~/N/PE 400 / 50
Power factor cos φ = 0.9cos φ = 0.9cos φ = 0.9cos φ = 0.9cos φ = 0.9
Required network impedance Zmax with inrush current limiterΩ≤ 0.472≤ 0.472≤ 0.472≤ 0.472≤ 0.472
Fuse characteristic,
type C
A2525253232
Optional building earth leakage circuit breaker RCCB type A (type A pulse current sensitive residual-current circuit breakers) or RCCB type B (type B universal current sensitive residual-current circuit breakers)RCCB type A (type A pulse current sensitive residual-current circuit breakers) or RCCB type B (type B universal current sensitive residual-current circuit breakers)RCCB type A (type A pulse current sensitive residual-current circuit breakers) or RCCB type B (type B universal current sensitive residual-current circuit breakers)RCCB type A (type A pulse current sensitive residual-current circuit breakers) or RCCB type B (type B universal current sensitive residual-current circuit breakers)RCCB type A (type A pulse current sensitive residual-current circuit breakers) or RCCB type B (type B universal current sensitive residual-current circuit breakers)
Inrush current (with inrush current limiter)A≤ 15≤ 19≤ 22≤ 26≤ 30
Rated current (compressor and auxiliary heater)A11.919.124.926.131.2
Measuring current, maximumA19.821.223.425.230.4
Output levels for the auxilliary heaterkW2 / 3.5 / 5.5 / 7 / 92 / 3.5 / 5.5 / 7 / 92 / 3.5 / 5.5 / 7 / 92 / 3.5 / 5.5 / 7 / 92 / 3.5 / 5.5 / 7 / 9
Minimum electrical power consumption of compressorkW1.402.002.503.304.70
Maximum electrical power consumption of compressor and auxiliary heaterkW11.512.814.115.617.8
IP rating IP 10BIP 10BIP 10BIP 10BIP 10B
ErP rating at 35˚CbandA+++*A+++*A+++*A+++*A+++*
ErP rating at 55˚CbandA+++*A+++*A+++*A+++*A+++*
*Reported efficiency when used with VRC 700 controller
Ground source
Heating output B0/W35 ΔT 5KkW5.228.7611.1214.2819.52
Power consumption B0/W35 ΔT 5KkW1.121.742.242.934.18
Output figure B0/W35 ΔT 5K / coefficient of performance EN 14511 4.665.034.964.874.67
Heating output B0/W45 ΔT 5KkW5.218.7111.0813.8519.46
Power consumption B0/W45 ΔT 5KkW1.482.312.933.695.24
Output figure B0/W45 ΔT 5K / coefficient of performance EN 14511 3.523.773.783.753.71
Heating output B0/W55 ΔT 8KkW5.318.8911.2714.5519.83
Power consumption B0/W55 ΔT 8KkW1.782.703.564.536.12
Output figure B0/W55 ΔT 8K / coefficient of performance EN 14511 2.983.293.173.213.24
Sound power level B0/W35
EN 12102/EN 14511 LWI in heating mode
db(A)39.842.445.249.948.4
Water source
Heating output W10/W35 ΔT 5KkW6.409.8812.8416.5722.93
Power consumption W10/W35 ΔT 5KkW1.401.912.503.094.44
Output figure W10/W35 ΔT 5K / coefficient of performance EN 14511 4.805.175.145.365.16
Heating output W10/W45 ΔT 5KkW6.159.9712.7916.3623.47
Power consumption W10/W45 ΔT 5KkW1.672.453.233.925.70
Output figure W10/W45 ΔT 5K / coefficient of performance EN 14511 3.684.073.964.174.12
Heating output W10/W55 ΔT 8KkW6.1910.2213.1616.9223.59
Power consumption W10/W55 ΔT 8KkW2.102.963.954.776.73
Output figure W10/W55 ΔT 8K / coefficient of performance EN 14511 2.953.453.333.553.51
Sound power level B0/W35
EN 12102/EN 14511 LWI in heating mode
dB(A)41.247.945.049.950.6
Air source
Heating output A7/W35 ΔT 5KkW6.118.6911.4015.0819.68
Power consumption A7/W35 ΔT 5KkW1.271.872.463.154.44
Output figure A7/W35 ΔT 5K / coefficient
of performance EN 14511
 4.784.644.634.794.43
Heating output A7/W45 ΔT 8KkW5.988.9511.9315.3720.46
Power consumption A7/W45 ΔT 8KkW1.622.403.133.995.54
Output figure A7/W45 ΔT 8K / coefficient
of performance EN 14511
 3.693.733.803.853.69
Heating output A7/W55 ΔT 8KkW6.059.4012.1415.7820.72
Power consumption A7/W55 ΔT 8KkW1.942.913.804.816.55
Output figure A7/W55 ΔT 8K / coefficient
of performance EN 14511
 3.123.233.193.273.16
Sound power level A7/W35
EN 12102/EN 14511 LWI in heating mode
db(A)40.345.844.448.748.1
 
SCoP performance table
Ground source 35˚C  4.975.345.305.395.07
Ground source 40˚C  4.404.754.694.614.36
Ground source 45˚C  3.834.154.074.234.05
Ground source 50˚C  3.663.993.903.893.76
Ground source 55˚C  3.493.843.733.743.68
Water source (with fluoCOLLECT) 35˚C 5.215.595.595.915.63
Water source (with fluoCOLLECT) 40˚C 4.615.004.975.24.97
Water source (with fluoCOLLECT) 45˚C 4.014.404.354.644.46
Water source (with fluoCOLLECT) 50˚C 3.824.264.194.424.27
Water source (with fluoCOLLECT) 55˚C 3.624.124.024.344.23
Air source (with aroCOLLECT) 35˚C 4.354.214.104.514.08
Air source (with aroCOLLECT) 40˚C 3.843.753.643.913.57
Air source (with aroCOLLECT) 45˚C 3.333.303.183.463.21
Air source (with aroCOLLECT) 50˚C 3.293.293.173.373.16
Air source (with aroCOLLECT) 55˚C 3.263.283.153.423.27

Related Products

Related Products

fluoCOLLECT

Water-to-water stainless steel heat exchanger module for use with flexoTHERM 230V and 400V

  • Vapor diffusion tight casing
  • Easy installation
  • Analogue pressure gauge
  • Brine filling function integrated

aroCOLLECT

Air source brine collector module for use with flexoTHERM 400V

  • Very low noise output with 47 dB(A) sound power
  • Twin unit connection with balanced Tichelmann piping

VRC 700

Wired weather compensating programmable room thermostat

  • Works with our complete range of Vaillant boilers
  • Flexible time programs
  • Works with S & Y plan systems
  • Clear, high contrast backlit display

Heat pump cylinders

uniSTOR cylinder range for heat pumps

  • 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

Alternative products

Alternative products

flexoTHERM 230V, 5, 8 and 11kW

Ground source heat pump with Green iQ

  • Connects to two different sources - ground or water
  • ErP rated A+++ when installed with VRC 700
  • "Quiet Mark" accredited by the Noise Abatement Society
  • Green iQ for the highest energy efficiency
  • High seasonal SCoP value

aroTHERM 5, 8, 11 and 15kW

Air-to-water heat pump

  • Blue fin coated evaporator as standard
  • MCS accredited
  • ErP rated A++
  • "Quiet Mark" accredited

aroTHERM hybrid 5, 8, 11 and 15kW

Air-to-water hybrid heat pump

  • Unique triVAI® intelligent control system
  • Total system solution – Available in an easy to order pack
  • Excellent green credentials
  • Compatible with all boiler systems running on gas, oil or LPG
  • Easy to install and commission

geoTHERM 22, 30, 38, 46kW

Ground source heat pump

  • "Quiet Mark" accredited thanks to geoTHERM multi-stage sound insulation
  • Energy yield display
  • MCS accredited, RHI eligible