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WI 120TU

High efficiency water-to-water heat pump for indoor installation.

Heat pump for heating purposes for indoor installation with integrated WPM Econ5Plus control. Variable connection options for the water and heating connections on the rear wall of the casing. A sound-optimised metal casing and the integrated solid-borne sound insulation with free-swinging compressor base plate make direct connection with the heating system possible. Access for service work front and left, no minimum clearance is required on the right side. High coefficient of performance through electronic expansion valve, COP booster and electronic pump control depending on the temperature spread in the heat generator circuit. Sensor monitoring of the refrigeration circuit for a high degree of operational safety and integrated thermal energy metering (display of the calculated quantity of thermal energy for heating, domestic hot water and swimming pool water preparation). FWO function for more efficient domestic hot water preparation with increased domestic hot water temperatures and volumes of water to be drawn through optimised tank charging.
The integrated control panel can also be used as a wired remote control using the wall mounting set (special accessories for MS PGD). Universal design with two compressors for output regulation when operating at partial load, optional domestic hot water preparation and flexible expansion options for:

  • Bivalent or bivalent-renewable operating mode
  • Distribution systems with unmixed and mixed heating circuits
  • Use of load-variable tariffs (SG Ready)
Soft starter, flow and return sensors for the water and heating circuit integrated. Dirt trap for heat source, external sensor (standard NTC-2) and circulating pump for the heat generator circuit in the scope of supply (observe the free compression). Heat generator circuit pump 8 m delivery height at 12 m3/h, flange connection DN 65, installation length 340 mm.

Technical data

High efficiency water-to-water heat pump for indoor installation.
Order reference WI 120TU
Heat pump code3014
Casing colourWhite (similar to RAL 9003)
Max. flow temperature62 °C
Lower operating limit heat source (heating operation) / Upper operating limit heat source (heating operation)7 to 25 °C
Heat output W10/W35 / COP W10/W3561,6 kW / 6,1
Heat output max. W10/W35 / COP W10/W35118,5 kW / 5,9
Heat output W10/W45 / COP W10/W4555,9 kW / 4,7
Heat output max. W10/W45 / COP W10/W45109,5 kW / 4,6
Nominal power consumption according to EN 14511 at W10/W3520,1 kW
Sound power level66 dB (A)
Refrigerant / Amount of refrigerantR410A / 23,0 kg
Max. heating water flow rate / Pressure drop20,6 m³/h / 21500 Pa
Heat source flow (min.)22,4 m³/h
Dimensions (W x H x D)**1348 x 1896 x 840 mm
Weight604 kg
Rated voltage3/PE ~400 V, 50 Hz
Starting current53 A
Fuse protection***C 80 A
Connection heating2 ½ inch
Heat source connection2 ½ inch

*A water-to-water heat pump must be used if borehole heat exchangers are used which work using water as the heat transfer medium.

**Please note that additional space is required for pipe connections, operation and maintenance.

***Die Absicherung ist als allpolige Trennvorrichtung auszuführen (gemeinsame Abschaltung aller Phasen)!

Documents and downloads

Data sheetProduct data sheet with system accessories» via e-mail
Instruction for useInstruction for use» via e-mail
Equipment dataEquipment data» via e-mail
Declaration of conformityDeclaration of conformity» via e-mail
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