ZunDing
Inverter Air Source Heat Pump Heating Unit
This product features a dual-stage heat pump compressor, delivering exceptional low-temperature heating performance and stable operation even at ultra-low ambient temperatures down to –35°C—ideal for space heating in cold-climate regions.
It supports return water temperatures up to 55°C and is equipped with a dedicated shell-and-tube heat exchanger for space heating, ensuring higher heat transfer efficiency and more stable operation. Intelligent Frost Shield Technology effectively mitigates frost accumulation under low-temperature conditions, significantly enhancing winter heating reliability.
Additionally, the unit offers flexible dual-mode operation—supporting either domestic hot water production or space heating—allowing users to configure the system according to specific application needs and deliver efficient, stable, and comfortable heating and hot water solutions.
Category:
Heat Pump Units- Dual-Stage Heat Pump Compressor
- Up to 55°C Return Water Temperature
- Intelligent Frost Shield Technology
- Dedicated Shell-and-Tube Heat Exchanger for Space Heating
- Heating Capability Down to –35°C
- Single Unit for Both Domestic Hot Water and Space Heating
| Parameter | HA-SKE640-IIL/20 | HA-SKE860-IIL/30 | HA-SKE900-IIL/30 | HA-SKE1530-IIL/60 | HA-SKE1800-IIL/60 | HA-SKE2200-IIL/75 | HA-SKE3320-IIL/120 | HA-SKE5400-IIL/180 |
|---|---|---|---|---|---|---|---|---|
| Basic Parameters | ||||||||
| Horsepower | 20 HP | 30 HP | 30 HP | 60 HP | 60 HP | 75 HP | 120 HP | 180 HP |
| Air Discharge Orientation | Top Discharge | Top Discharge | Top Discharge | Top Discharge | Top Discharge | Top Discharge | Top Discharge | Top Discharge |
| Inverter / Fixed-Frequency | Inverter | Fixed-Frequency | Inverter | Fixed-Frequency | Inverter | Inverter | Fixed-Frequency | Inverter |
| Energy Efficiency Rating | Level 1 | Level 1 | Level 1 | Level 1 | Level 1 | Level 1 | Level 1 | Level 1 |
| Operating Ambient Temperature Range | ||||||||
| Cooling | 16–48°C | 16–43°C | 16–48°C | 16–43°C | 16–48°C | 16–48°C | 16–43°C | 16–48°C |
| Operating Ambient Temperature Range | ||||||||
| Heating | −38–35°C | −35–25°C | −38–35°C | −35–25°C | −38–35°C | −38–35°C | −35–25°C | −38–35°C |
| System Parameters | ||||||||
| Power Supply Specification | 380 V, 3N~, 50 Hz | 380 V, 3N~, 50 Hz | 380 V, 3N~, 50 Hz | 380 V, 3N~, 50 Hz | 380 V, 3N~, 50 Hz | 380 V, 3N~, 50 Hz | 380 V, 3N~, 50 Hz | 380 V, 3N~, 50 Hz |
| Refrigerant Type | R410A | R410A | R410A | R410A | R410A | R410A | R410A | R410A |
| Maximum Outlet Water Temperature | 60°C | 60°C | 60°C | 60°C | 60°C | 60°C | 60°C | 60°C |
| Dry Bulb: 7°C / Wet Bulb: 6°C / Outlet Water: 45°C (Rated Heating Condition) | ||||||||
| Heating Capacity (kW) | 64 | 86 | 90 | 153 | 180 | 220 | 332 | 540 |
| Rated Power Input (kW) | 18.55 | 24.50 | 25.64 | 45.70 | 52.17 | 63.58 | 94.30 | 155.17 |
| COP | 3.45 | 3.51 | 3.51 | 3.35 | 3.45 | 3.46 | 3.52 | 3.48 |
| Dry Bulb: −12°C / Wet Bulb: −14°C / Outlet Water: 41°C (Heating Condition) | ||||||||
| Heating Capacity (kW) | 43 | 55 | 55 | 112 | 120 | 145 | 224 | 342 |
| Rated Power Input (kW) | 16.79 | 22.36 | 22.36 | 42.70 | 46.69 | 56.64 | 85.20 | 134.12 |
| COP | 2.56 | 2.46 | 2.46 | 2.62 | 2.57 | 2.56 | 2.63 | 2.55 |
| Dry Bulb: −20°C / Wet Bulb: —°C / Outlet Water: 41°C (Low-Temperature Heating Condition) | ||||||||
| Heating Capacity (kW) | 37 | 40 | 40 | 94 | 105 | 126.69 | 201 | 300 |
| Rated Power Input (kW) | 17.45 | 20.55 | 20.51 | 40.50 | 48.61 | 58.57 | 87.70 | 138.25 |
| COP | 2.12 | 1.95 | 1.95 | 2.32 | 2.16 | 2.16 | 2.29 | 2.17 |
| Dry Bulb: 35°C / Wet Bulb: —°C / Outlet Water: 7°C (Cooling Condition) | ||||||||
| Cooling Capacity (kW) | 46 | 65 | 65 | 126 | 135 | 167 | 286 | 410 |
| Rated Power Input (kW) | 16.72 | 23.80 | 23.80 | 43.20 | 49.45 | 56.80 | 84.90 | 136.67 |
| EER | 2.75 | 2.73 | 2.73 | 2.92 | 2.73 | 2.94 | 3.37 | 3.00 |
| Other Parameters | ||||||||
| Maximum Input Power (kW) | 26 | 36 | 37 | 71 | 79 | 82 | 140 | 230 |
| Maximum Input Current (A) | 52 | 65 | 65 | 131 | 140 | 145 | 260 | 405 |
| Rated Flow Rate (m³/h) | 8 | 11.2 | 11.2 | 21.7 | 23.2 | 28.7 | 44.6 | 70.5 |
| Noise Level (dB(A)) | ≤68 | ≤69 | ≤69 | ≤77 | ≤70 | ≤71 | ≤76 | ≤76 |
| Water Circuit System | ||||||||
| Condenser Type | Plate | Shell-and-Tube | Shell-and-Tube | Shell-and-Tube | Shell-and-Tube | Shell-and-Tube | Shell-and-Tube | Plate |
| Water-Side Pressure Drop (kPa) | 45 | 45 | 50 | 50 | 50 | 50 | 55 | 65 |
| Pipe Location | Rear | Right | Rear | Right | Right | Rear | Rear | Rear |
| Connection Specification | G2″ | DN65 | DN65 | DN65 | DN65 | DN65 | DN100 | DN125 |
| Physical Structure | ||||||||
| Dimensions (mm) | 1650×950×1480 | 1955×960×2230 | 1955×960×2230 | 2300×1400×2550 | 2400×1300×2400 | 2400×1300×2600 | 2650×2300×2500 | 4500×2410×2650 |
| Unit Weight (kg) | 446 | 560 | 560 | 980 | 980 | 1080 | 1980 | 2980 |
| Color | Gray | Gray-White | Gray-White | Gray-White | Gray-White | Gray-White | Gray-White | Gray-White |
