Aquatech Rapid X6 225L Heat Pump Hot Water System

The Aquatech Rapid X6 225L Heat Pump Hot Water System is an all-in-one R290 heat pump solution designed for households of approximately 3–4 people.

With a 225L stored tank, 222L heated capacity, R290 refrigerant, Wi-Fi connectivity, built-in solar timers and five operating modes, the Rapid X6 combines practical hot-water storage with modern heat pump technology.

High-Efficiency Heat Pump Performance

Manufacturer-published performance figures vary according to wet-bulb air temperature. At 15°C wet-bulb, the published COP is 4.68, with a heating capacity of 3165 W, hot-water production of 67 L/hr, and a stated full-recovery time of approximately 3 hours 18 minutes under the specified test conditions.

At 20°C wet-bulb, the published COP increases to 5.0, with 3500 W capacity and approximately 75 L/hr production.

Key Specifications

• 225L stored tank capacity
• 222L heated capacity
• Suitable for approximately 3–4 people
• R290 refrigerant
• 400 g refrigerant charge
• 42 dB(A) sound level at 1.65 m
• 620 mm diameter × 1580 mm height
• 103 kg empty weight
• IPX4 protection class
• 10 amp single-phase circuit
• GMCC Toshiba rotary compressor
• 1800 W backup flange element
• LCD controller with Wi-Fi and Tuya app
• 60°C maximum heat-pump temperature
• 70°C maximum element temperature

Five Operating Modes for Everyday Flexibility

The Rapid X6 provides five controller modes for different operating requirements.

• Eco: 60°C set temperature with heat-pump-only operation.
• Standard: 60°C set temperature with a higher trigger temperature intended to help position a heating cycle within a solar or off-peak window.
• Hybrid: 65°C set temperature, with the heat pump operating to 60°C before the element provides the final temperature increase.
• Hybrid+: 70°C set temperature, providing greater stored hot-water capacity from a heating cycle.
• Element: 70°C set temperature using the electric element only as a backup operating option.

Quiet Operation at 42 dB(A)

The Aquatech Rapid X6 has a manufacturer-published sound level of 42 dB(A) at 1.65 metres.

The unit measures approximately 620 mm in diameter × 1580 mm high and has a published empty weight of 103 kg.

The supplied information also states that the Rapid X6 is designed to fit the footprint of an electric 250L system, which may be useful when assessing replacement installations.

Backup Electric Heating

The Rapid X6 incorporates an 1800 W flange heating element.

The heat pump has a published maximum water temperature of 60°C, while the electric element can support temperatures up to 70°C.

Five-Year Full System Replacement Warranty

Published warranty information for the Aquatech Rapid X6 lists:

• 5 years full system replacement
• 2 years labour

Victorian Rebates and Incentives

The supplied Sunline Heat Pumps information provides a worked example for an electric-storage replacement, showing an RRP of $2,945, a $1,000 Solar Victoria rebate and $702 in federal STCs, resulting in an example installed price of $1,243.