AquaMaster Inverter Combi
heat pump

A quiet and efficient ground-to-water heat pump with integrated SHW storage tank of 170 l. The variable speed compressor (inverter) increases efficiency and savings in heating.

Energy efficienty Energy efficienty
R410a refrigerant R410a refrigerant
Heating water temperature up to 64 °C Heating water temperature up to 64 °C
Output up to 48 kW Output up to 48 kW
On line control On line control
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Main features

All-in-one unit – significant savings on installation time and costs Output up to 15 kW (B0W35) Minimum space required – plant room of only 0.5 m2 Fast installation kit: expansion vessel, manometer, filter, fittings (optional equipment)

Suitable for individual properties or for installations with a shared ground collector Extensive intelligent optional equipment: internet connection, modbus/BMS, integrated MID electric meter or heat meter, communication with PV Inverter and Batteries, smart grid etc. Passive cooling module (optional equipment)

Integral brine and heating side pumps including 3–way valve Optional upgrade of brine side circulation pump with 2–port zone valve with proportional control for large shared ground loop installations

Stainless steel cylinder of 170 l SHW temperature up to 64 °C Max heating water temperature 64 °C

Technical details

ModelPerformance at B0W35Thermal loss of the object QzSeasonal energy efficiency of heating at a 35 °C low temperature operationSeasonal energy efficiency of heating at a 55 °C medium temperature operationOrder number (according to heating circuit control)
+ pricing
AquaMaster Inverter 17IC1–5up to 54,58A+++3,46A++1AQ17IC-01AQ17IC-1
AquaMaster Inverter 22IC2–7up to 74,72A+++3,58A++1AQ22IC-01AQ22IC-1
AquaMaster Inverter 26IC3–9up to 94,94A+++3,81A++1AQ26IC-01AQ26IC-1
AquaMaster Inverter 30IC4–12up to 124,92A+++3,82A++1AQ30IC-01AQ30IC-1
AquaMaster Inverter 37IC5–15up to 155,10A+++3,97A+++1AQ37IC-01AQ37IC-1

Regulation STANDARD (μPC): Designed for single-circuit heating systems. No auxilliary heating circuit, 1-zone space temperature, 1 heating circuit.

Regulation PLUS (pCO5): Designed for multiple-circuit heating systems. 2 independent auxilliary heating circuits including mixing. 2-zone space temperature, up to 6 heating circuits.

Master Therm software

Master Therm software

Unique Master Therm software for heat pump control

Custom application for controlling the cooling circuit and peripherals Equithermal MaR (measurement and regulation) Advanced temperature feedback control in the building based on internal room temperature sensors Control via touchscreen terminal or online application Includes remote service monitoring and diagnostics Control of up to 6 heating circuits including the possibility of connecting a swimming pool or solar panel

Download software AppStore GooglePlay MasterTherm software

Optional equipment selection

7-year warranty on the complete pump Without any exceptions. Only in combination with Master Therm Online app.
Master Therm Online app Advanced online control and romote service acces.
Additional pGDx touch screens (1 as standard) Parametrization, temperature compensation, humidity sensor, ethernet or wifi internet connection. Mounting possible on/in the wall (plasterboard) or in the heat pump‘s case.
Passive cooling module Exclusive for ground-to-water heat pumps. Direct heat extraction from the interior of the ground collector or borehole. Extremely economical summer cooling of the building without need for compressor work.
Water-to-water design Adaptation for use on bottom or surface water. Evaporator more resistant to sediment (coax) and different electrical equipment.
Integrated electicity meter 1x 25 A Display, MID, 1 phase, max.unit circuit breaker 25 A
Extended control module Up to 6 heating circuits + SHW, for regulation PLUS (pCO5) only.
Master Lan Power cascade control
BMS serial ModBUS RTU – (control PLUS ModBUS including)
Integrated electricity meter 3x 65 A Integrated 3-phase electricity meter with identical functionality.

How it works

Ground-to-water heat pumps extract energy from the ground by means of a vertical or horizontal collector. Antifreeze circulates through the collector and removes ground heat. Thanks to the constant temperature of the ground, the heat pump has a stable source of energy throughout the year. The heat extracted from the ground is then transferred to the building. The system achieves a seasonal efficiency up to 5.5 times higher thanthat of a conventional electric boiler.

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