OverviewThe OA-TCS Series is a modular water-source heat pump chiller designed to use rivers, lakes or seawater as the heat sink/source. Units provide approx. 7°C chilled water for cooling in summer and approx. 45°C hot water for heating in winter. The modular design enables parallel operation to meet large cooling/heating loads and flexible site configurations.
Related Submodels- OA-36TCS
- OA-48TCS
- OA-60TCS
- OA-72TCS
- OA-96TCS
- OA-120TCS
- OA-180TCS
- OA-240TCS
Features- Modular frame allowing parallel connection of units for scalable capacity and improved regulation performance, reducing inrush/start-up current.
- Removable coaxial tube-in-tube heat exchanger on the river/lake/seawater side for simplified cleaning and maintenance.
- Operation at low water-source temperatures down to 3°C while maintaining over 70% of rated heating capacity under those conditions.
- Fully enclosed imported-brand compressor selected for low noise and reliability.
- Digital control system with multiple protection and monitoring functions.
- Design measures for corrosion resistance, vibration reduction and structural stability.
- Modular frame supports horizontal or vertical parallel arrangements to fit different plant layouts.
Protection Functions- Water flow protection: detection and protection against lack of water or interruption in seawater and circulating water systems.
- Refrigerant pressure protection: high-pressure and low-pressure safety cutouts.
- Compressor protection: overload and over-temperature protection.
- Water temperature protection:
- Low seawater temperature protection and inlet/outlet temperature differential protection.
- Circulating water high/low temperature protection and inlet/outlet temperature differential protection.
- Optional: zinc anode anti-corrosion protection for seawater applications.
Product Parameters (selection)- Columns: Model | Btu/h | Power | Cooling input power | Heating input power
- OA-36TCS | <96000 | -- | 2.4–20 kW | 2.4–20 kW
- OA-48TCS | <96000 | -- | 2.4–20 kW | 2.4–20 kW
- OA-60TCS | <96000 | -- | 2.4–20 kW | 2.4–20 kW
- OA-72TCS | <96000 | -- | 2.4–20 kW | 2.4–20 kW
- OA-96TCS | 96000–720000 | -- | 2.4–20 kW | 2.4–20 kW
- OA-120TCS | 96000–720000 | -- | 2.4–20 kW | 2.4–20 kW
- OA-180TCS | 96000–720000 | -- | 2.4–20 kW | 2.4–20 kW
- OA-240TCS | 96000–720000 | -- | 2.4–20 kW | 2.4–20 kW
Technical Notes- Example model decoding: OA-48TCS — '48' indicates model size with a cooling/heating capacity of 48,000 Btu/h.
- Power supply note: suffix 'S' indicates 380V/50Hz/3Phase; default is 220V/50Hz/1Phase where applicable.
- Effective operating water-source temperature range: 3–35°C (river/lake/seawater).
- Drain pan and frame material: stainless steel.
- Condenser materials: B10/B30 copper-nickel tube or titanium tube (options).
- Evaporator material: 316L stainless steel.
- Refrigerant options: R410A or R407C.