Air-to-water heat pumps

A heat-pump system shaped around the building, water circuit and climate.

An air-to-water heat pump transfers energy from outdoor air into a building's water system. Correct selection connects the unit with the real heating and cooling loads, required water temperatures, emitters, circulation and controls.

GOLD · SYSTEM GUIDE

One platform for heating, cooling and hot water.

Depending on the selected model and system design, a heat pump can supply space heating, chilled or cooled water, and domestic hot-water storage. The hydraulic circuit and controls determine how these applications operate together.

GOLD air-to-water heat pump

Where the system can contribute

01

Space heating

Supplies compatible hydronic distribution such as underfloor circuits, fan-coil units and other water-side terminal equipment designed for the required supply temperature.

02

Cooling

Selected reversible systems can supply cooled water to suitable terminal units and a correctly designed condensate strategy.

03

Domestic hot water

Works with a correctly sized hot-water cylinder, heat exchanger arrangement and control sequence.

Inverter energy management

Power that follows demand, not fixed maximum-output operation.

Full-inverter control raises output when heating demand is high, then progressively reduces compressor, fan and circulation speed as the system approaches its target temperature. Electrical input therefore varies within each model's operating range according to building load, outdoor conditions and required supply-water temperature instead of remaining fixed at one output level.

The result is smarter control of electrical input for the useful heat transferred into the building.
  1. 01

    Respond to demand

    Output rises during start-up or when the thermal load increases.

  2. 02

    Approach the target

    Component speed reduces progressively as system temperature stabilizes.

  3. 03

    Maintain balance

    The system modulates within the range required by real operating conditions.

Air-to-water heat pumps

GOLD heat-pump series

The current GOLD range includes two air-to-water platforms. Exact performance depends on the selected model and operating conditions.

01

R290 high-temperature series

Full-inverter models in 8, 12, 16 and 22 kW heating capacities, with outlet water up to 80 C.

02

R32 full-inverter series

Models in 8, 12.5, 16 and 22 kW heating capacities, with outlet water up to 60 C and cabinet configuration varying by capacity.

Air-to-water heat pumps

Inputs used to frame the right selection

Capacity alone is not enough. A useful project review starts from the building and the operating conditions.

01

Design heat load

The building's calculated demand at local winter design conditions.

02

Climate

Outdoor design temperatures and the seasonal conditions in the project location.

03

Required water temperature

The supply temperature needed by the selected emitters and domestic hot-water strategy.

04

Hydraulic design

Flow rates, pressure loss, buffer volume, separation and circulation requirements.

05

Heat-distribution equipment

Underfloor circuits, fan-coil units and compatible water-side terminal equipment selected for the system operating temperatures.

06

Controls

Zones, sensors, operating priorities and the coordination of heating, cooling and hot water.

GOLD GROUP

The product and the water system must be selected together.

Gold Group can review the building type, area, location, required temperatures and distribution method to help define the appropriate next technical step.

GOLD

Planning a heating or hot-water project?

Share the building type, area and required water temperature. Our team will help identify the right system direction.