Robur GAHP A Air-to-Water Gas Absorption Heat Pump 41 kW

The Robur GAHP A is a modulating, condensing air-to-water gas absorption heat pump. It burns natural gas or LPG to drive an ammonia-water absorption cycle that also recovers renewable energy from the outside air, giving a gas utilisation efficiency (GUE) of 164% at A7/W35, 152% at A7/W50 and 124% at A7/W65. Each unit delivers 41.3 kW at A7/W35 and supplies water up to 65 °C for space heating and 70 °C for domestic hot water, so it suits radiator systems in existing buildings as well as low temperature systems. It works in outdoor temperatures from -15 °C to 45 °C, or down to -30 °C as an option, and carries an ErP seasonal efficiency class of A+.

The GAHP A is designed for outdoor installation and is available as the standard GAHP A HT or the GAHP A HT S1, which uses a brushless low-noise fan to cut sound pressure at 5 m from 57.6 to 52.0 dB(A). The ammonia-water refrigerant is natural and needs only a small electrical supply, 0.84 kW on the HT, from a single phase 230 V connection. Nominal heat input is 25.7 kW with NOx class 5 emissions, and the unit measures 854 × 1,260 × 1,445 mm and weighs 390 kg in operation. Units can be combined and controlled through Robur’s DDC controllers. For Robur’s latest generation, see the GAHP Plus, and for peak loads pair it with the Robur AY condensing boiler.

Harold Engineering supplies, installs and commissions Robur heat pumps as part of complete heating systems, alongside calorifiers and buffer tanks, from our Dublin and Galway bases, with 15 OEM trained field service engineers and a 24 hour breakdown callout service. Contact us to discuss your heating project.