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Worcester Bosch Compress 7400iAW Air Source Heat Pump

  • Suitable for renovation (building dependent) and new build projects, the 74001iAW air to water heat pump utilises high efficiency, low-carbon technology to deliver all the benefits of using ambient air as the primary energy source for space heating and hot water.

    Worcester Bosch's quietest outdoor unit with ultra low-noise operation enhanced by an addition diffuser. Its monobloc design houses all refrigeration circuit components, including the inverter, filter and circuit boards, keeping maintenance low.

    Pre-configured AWE indoor unit for quick and easy installation with a built in multi- functional back up electric booster for heating and hot water.

    Optional Green Storage WB heat pump range cylinders from 150 to 300 litres provide solutions for even the most demanding lifestyles.

    Features & Benefits

    • 7400iAW outputs of 5kW and 7kW
    • A+++ at 35 degrees flow for heating
    • Heating mode from -20°C to 35°C (outside temperature)
    • Cooling mode from 15°C to 45°C (outside temperature)
    • Low maintenance with hermetically sealed refrigeration circuit
    • No requirement for Glycol to be used
    • Electronic expansion valves for better refrigerant and better COP
    • A CR10H remote room controller is available for additional user convenience and comfort
    • Optional 50 litre buffer vessel available if required


    • Energy Efficiency Class (35°C): A+++
    • Energy Efficiency Class (55°C): A++
    • Working outdoor temperature range (Heating): -20 / 35 °C
    • Compressor type: Twin rotary compressor
    • Maximum temperature of flow (heat pump only): 62°C
    • Refrigerant Type: R410A
    • Quiet Mark certified outputs: 5kW & 7kW
    • Product codes: CS7400i AW 5 OR-S & CS7400i AW 7 OR-S

    Outdoor Unit

    • Dimensions (W x H x D): 940 x 1380 x 600mm 
    • Weight (kg) - Outdoor Unit (Without walls and top cover): 89kg (5kW), 96kg (7kW)
    • Weight (kg) - Outdoor Unit (With walls and top cover): 113kg (5kW), 120kg (7kW)

    Indoor Unit 

    • Weight (kg): 32kg
    • Dimensions (W x H x D): 485 x 700 x 386

Sound Made Simple

Acoustics Academy’s Sound Made Simple guide clarifies complex acoustic terminology with insights to design with sound.