Gree Versati III DUO 4.0/3.9kW, S1GRE- Air-to-water heat pump indoor unit

The Gree Versati III DUO 4.0/3.9kW indoor unit is a reliable and efficient third-generation air-to-water heat pump indoor unit. The device is designed for heating, cooling, and domestic hot water preparation systems. The Versati III series stands out for its durability, favorable price, and consistently high efficiency even at low outdoor temperatures. The package includes a three-way valve, room thermostat (temperature sensor), water heater controller, signal cable between the indoor and outdoor units, coarse filter, and outdoor unit bottom plate heating cable.

This heat pump indoor unit is used as the main energy collection component, transferring heat from the environment to the internal heat pump system. The maximum efficiency of the device reaches up to 5.10, and the electrical power is up to 3100 W, enabling the indoor unit to efficiently utilize electricity for heating and cooling processes. This indoor unit features an integrated domestic hot water tank with a capacity of 185 liters. The water supplied to the system can be heated up to +60°C.

The device also features a durable construction and corrosion protection, making it suitable for operation in various climatic conditions. The operating parameters of the heat pump at T=+7 °C/+35 °C are: nominal heating capacity (underfloor heating): 4 kW. The device also has an exceptionally high coefficient of performance (COP) of up to 5.1, and a COPd of 6.39 (A7/W35 °C). The cooling capacity of the device (underfloor cooling) at T=+35°C/+18°C is 3.8 kW, with a coefficient of performance (EER) of up to 4.63. The device also features an integrated touch-sensitive control screen and built-in WiFi. The refrigerant used in the device is R32.

The integrated plate heat exchanger guarantees excellent heat transfer efficiency and resistance to thermal fluctuations. This is crucial for maintaining stable operation over many years. This series unit is compatible with hydraulic modules and boilers, allowing this block to be used in various system configurations.

To be paired with the outdoor unit, code S1GRE-GRS-CQ4.0PD/NHH-E(O).