OA-ZK Series
Principle The OA ZK commercial unitary air handling unit consists of key components including the compressor, condenser, expansion valve, and evaporator. It utilizes seawater to cool the unit, thereby lowering the temperature and dehumidifying the circulating air. For heating requirements, optional components such as electric heaters, hot water coils, or steam coils can be equipped to provide heating functionality. The air intake side is designed with both fresh air and return air inlets, allowing the mixing ratio of fresh and return air to be adjusted via dampers.
Related Submodels:
| Model | Btu/h | Power | Cooling input power | Heating input power |
|---|---|---|---|---|
| OA-25ZK | <96000 | AC380V/50Hz | -- | -- |
| OA-35ZK | <96000 | AC380V/50Hz | -- | -- |
| OA-50ZK | <96000 | AC380V/50Hz | -- | -- |
| OA-70ZK | <96000 | AC380V/50Hz | -- | -- |
| OA-105ZK | <96000 | AC380V/50Hz | -- | -- |
| OA-150ZK | <96000 | AC380V/50Hz | -- | -- |
Features
- Integrated structure for easy installation
- Primary frame filter for easy replacement
- Equipped with refrigeration solenoid valve and thermal expansion valve
- Utilizes variable-speed fan to adjust outlet air residual pressure based on duct resistance
- Centralized air supply and return, enabling full fresh air operation during transitional seasons
- Capable of air treatment including dust removal/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
- Model 0A-105ZK:
- 105 indicates model size, with cooling/heating capacity of 105 kW
- Power supply: 380V/50Hz/3Phase
- Fan control: Variable frequency drive
- Operating modes: Ventilation, cooling, heating (optional), humidification (optional)
- Heat exchanger material: Hydrophilic aluminum foil/copper foil options
- Optional accessories: Galvanized/aluminum alloy fresh air and return air dampers
- Optional accessories: Electric heater and wet membrane/electrode humidifier
- Effective river/lake/seawater temperature range: 15–35°C
Specifications
