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Modular Air-Cooled Heat Pump Water Heater

Designed for modular air-source heat pump water-heating units, this system supports both direct-heating and recirculating-heating modes and features a range of advanced functions, including water-level detection, automatic make-up water replenishment, intelligent defrosting, and standby freeze protection. Each module can independently control two compressors, two liquid-injection solenoid valves, one condenser fan, one four-way valve, two electronic expansion valves for the refrigerant circuit, one unit inlet water valve, and one water-flow proportional control valve, thereby forming two independent energy-conversion loops. A configuration of 1 to 8 modules enables multi-module operation, while the circulating water pump, chilled-water booster pump, and auxiliary electric heater are all centrally controlled by the main module. The system automatically switches between direct-heating and recirculating-heating modes based on water level and water temperature: it operates in direct-heating mode when the tank requires make-up water, and in recirculating-heating mode when the water temperature still needs to be raised after the water level has been replenished. Equipped with an RS485 remote-control port and supporting the Modbus protocol, the system can be easily integrated into other networked devices. The operator panel features touch-sensitive buttons and a large LCD segment-display, providing clear, real-time visualization of the system’s operating status. The DI inputs comprise 15 optically isolated channels, used for tank water-level detection and protection against unit malfunctions, with an input voltage of DC 12 V. The DO outputs include 14 active outputs and 1 passive output, totaling 15 relay groups (for resistive loads at AC 220 V/5 A). The AI inputs consist of 12 analog temperature signals, employed for electronic expansion-valve control, defrosting, and energy regulation, along with two 4-phase, 8-pulse electronic expansion-valve outputs and one water-flow proportional-control-valve output. Physical dimensions: TS95C—165 mm × 115 mm × 30 mm (maximum overall dimensions); TS96P—190 mm × 125 mm.

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Product Details

This modular air-source heat pump water-heating unit supports both direct-heating and recirculating-heating modes and features a range of advanced functions, including water-level detection, automatic make-up water replenishment, intelligent defrosting, and standby freeze protection. Each module can independently control two compressors, two liquid-injection solenoid valves, one condenser fan, one four-way valve, two electronic expansion valves for the refrigerant circuit, one unit inlet water valve, and one water-flow proportional control valve, thereby forming two independent energy-conversion systems. A configuration of 1 to 8 units can operate in multi-module mode, with the main module managing the circulating water pump, the chilled-water booster pump, and the auxiliary electric heating. The unit automatically switches between direct-heating and recirculating-heating modes based on water level and water temperature: it operates in direct-heating mode when the water tank requires make-up water, and switches to recirculating-heating mode when the water level is adequate but further heating is still needed.

Equipped with an RS485 remote control port and Modbus protocol, it can be easily integrated into other network devices.

The control panel features touch-sensitive operation keys and a large-screen LCD segment display, providing clear and immediate visibility of the system’s operating status.

DI inputs: 15 channels, all opto-isolated, for applications such as water tank level detection and protection against unit operating abnormalities; input voltage: DC 12 V.

DO Outputs: 14 channels of powered outputs and 1 channel of unpowered output, totaling 15 relay groups (for resistive loads: AC 220 V/5 A).

AI input: 12-channel analog temperature signals, used for electronic expansion valve control, defrosting, and energy regulation, among other applications.

Two-channel, four-phase, eight-step electronic expansion valve output; one-channel proportional water-flow control valve output.

External dimensions: TS95C:
TS95C: 165 mm × 115 mm × 30 mm (maximum overall dimensions).
TS96P: 190 mm × 125 mm.

Keywords: Modular Air-Cooled Heat Pump Water Heater