OA-ZK Series
Principle The OA-ZKH commercial unitary air handling unit consists of components such as a compressor, condenser, expansion valve, and evaporator. It utilizes seawater to cool the unit, thereby achieving cooling and dehumidification of the circulating air. The unit can provide heating during winter when seawater temperature exceeds 3°C. The air intake side is equipped with fresh air and return air openings, allowing the mixing ratio of fresh air and return air to be regulated through dampers.
Related Submodels:
| Model | Btu/h | Power | Cooling input power | Heating input power |
|---|---|---|---|---|
| OA-25ZKH | <96000 | AC380V/50Hz | -- | -- |
| OA-35ZKH | 96000-720000 | AC380V/50Hz | -- | -- |
| OA-50ZKH | 96000-720000 | AC380V/50Hz | -- | -- |
| OA-70ZKH | 96000-720000 | AC380V/50Hz | -- | -- |
| OA-105ZKH | 96000-720000 | AC380V/50Hz | -- | -- |
| OA-180ZKH | 96000-720000 | AC380V/50Hz | -- | -- |
Features:
- Integrated structure for easy installation
- Primary frame-type filter for convenient replacement
- Built-in refrigerant solenoid valve and thermostatic expansion valve
- Utilizes a speed-regulating fan to adjust outlet static pressure based on duct resistance
- Centralized air supply and return, allowing for 100% fresh air operation during transitional seasons
- Capable of air treatment including dust filtration, cooling, heating, and humidification
- Floor-mounted installation, connecting to supply/return air ducts and fresh air ducts, suitable for large-space cabins
Technical Specifications
OA-105ZKH:
- 105 denotes the model specification, with a cooling/heating capacity of 105 kW.
- Electrical Supply: 380V / 50Hz / 3 Phase
- Fan Control: Variable Frequency Drive (VFD) / Speed Regulation
- Operating Modes: Ventilation, Cooling, Heating (Optional), Humidification (Optional)
- Heat Exchanger Material: Hydrophilic aluminum fins / Copper tube options
- Optional Accessories: Galvanized steel / Aluminum alloy fresh air and return air dampers
- Optional Accessories: Electric heater and Celdek / Electrode humidifier
- Applicable Water Source Temperature (River, Lake, Sea Water): 3°C ~ 35°C
Specifications:

