Water-Cooled Screw Heat-Recovery Unit (Single Compressor) KDSR-050S
KDSR series heat-recovery chillers combine two or three functions: cooling, space heating and domestic hot water production. Features: ① Multiple functions in one unit. In summer, cooling-only units can recover condenser heat that would otherwise be wasted while providing cooling, or can provide cooling alone. Heat-pump units provide cooling, heating with heat recovery, and domestic hot water. ② Adding a heat-recovery exchanger effectively increases heat-exchange area and improves heat transfer, reducing energy consumption. The overall coefficient of performance reaches 3.5~3.9 for air-cooled heat-recovery units and 5.6~6.3 for water-cooled heat-recovery units. ③ Two compressor choices. RLS/RLSF/RLSRF series heat-recovery chillers use advanced imported semi-hermetic twin-screw compressors with a 5:6 tooth ratio. Compressor unloading capacity controls allow stepped or stepless capacity adjustment. RLSQ/RLSQF/RLSQRF series heat-recovery chillers use imported hermetic scroll refrigeration compressors, offering high efficiency, low noise, low vibration, reliable operation and long service life. ④ The microcomputer control system provides comprehensive safety protection, communication, fault diagnosis and automatic adaptation. ⑤ Compact construction, a small footprint and simple piping require only an external water system, making installation and maintenance easy.
Overview
Specifications
| Parameter | Value |
|---|---|
| Cooling capacity [Standard Unit ; Measurement Conditions : Chilled Water Inlet Temperature 12°C, Outlet Temperature 7°C; Cooling Water Inlet Temperature 30°C, Outlet Temperature 35°C; Fouling Factor 0.0001m²°C/D] | 173 kD |
| Cooling capacity [Standard Unit ; Measurement Conditions : Chilled Water Inlet Temperature 12°C, Outlet Temperature 7°C; Cooling Water Inlet Temperature 30°C, Outlet Temperature 35°C; Fouling Factor 0.0001m²°C/D] | 148,780 kcal/h |
| Heat Recovery [Standard Unit ; Measurement Conditions : Chilled Water Inlet Temperature 12°C, Outlet Temperature 7°C; Cooling Water Inlet Temperature 30°C, Outlet Temperature 35°C; Fouling Factor 0.0001m²°C/D] | 26 kD |
| Power Consumption [Standard Unit ; Measurement Conditions : Chilled Water Inlet Temperature 12°C, Outlet Temperature 7°C; Cooling Water Inlet Temperature 30°C, Outlet Temperature 35°C; Fouling Factor 0.0001m²°C/D] | 33.2 kD |
| Chilled-Water Volume [Standard Unit ; Measurement Conditions : Chilled Water Inlet Temperature 12°C, Outlet Temperature 7°C; Cooling Water Inlet Temperature 30°C, Outlet Temperature 35°C; Fouling Factor 0.0001m²°C/D] | 29 m³/h |
| Cooling water flow rate [Standard Unit ; Measurement Conditions : Chilled Water Inlet Temperature 12°C, Outlet Temperature 7°C; Cooling Water Inlet Temperature 30°C, Outlet Temperature 35°C; Fouling Factor 0.0001m²°C/D] | 35 m³/h |
| Hot-Water Volume [Standard Unit ; Measurement Conditions : Chilled Water Inlet Temperature 12°C, Outlet Temperature 7°C; Cooling Water Inlet Temperature 30°C, Outlet Temperature 35°C; Fouling Factor 0.0001m²°C/D] | 0.90 m³/h |
| Power supply [Standard unit] | 3PH-380V-50HZ(200V/220V/415V 50HZ/60HZ) |
| Compressor - Type [Standard unit] | Semi-hermetic screw type |
| Compressor-Quantity [Standard unit] | 1 |
| Compressor-Starting Method [Standard unit] | Y - △ |
| Compressor-Capacity Control [Standard unit] | 0,25,50,75,100 % |
| Compressor - Input Power [Standard Unit ; Measurement Conditions : Chilled Water Inlet Temperature 12°C, Outlet Temperature 7°C; Cooling Water Inlet Temperature 30°C, Outlet Temperature 35°C; Fouling Factor 0.0001m²°C/D] | 36 kD |
| Refrigeration Oil - Type [Standard unit] | SUNISO 4GS |
| Refrigeration Oil - Fill Quantity [Standard unit] | 7 L |
| Refrigerant - Type [Standard unit] | R-22(R407c/R134a) |
| Refrigerant - Control Method [Standard unit] | Thermostatic expansion valve with external equalization |
| Refrigerant - Fill Quantity [Standard unit] | 27 kg |
| Evaporator-Type [Standard unit] | Shell-and-tube type |
| Evaporator - Tube diameter [Standard unit] | PT 3" |
| Condenser-Type [Standard unit] | Shell-and-tube type |
| Condenser - Tube diameter [Standard unit] | PT 3" |
| Protective device [Standard unit] | High-/low-pressure switch, freeze protection, fusible plug/safety valve, overload protection, coil overheat protector, automatic temperature protection switch, etc. |
| External Dimensions - Length [Standard unit] | 2500 mm |
| External Dimensions - Width [Standard unit] | 800 mm |
| External Dimensions - High [Standard unit] | 1550 mm |
| Unit Weight [Standard unit] | 1450 kg |
Datasheet
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