Features:
1) Compressors
Adopting scroll and screw compressors in the unit. Screw type compressor is direct male motor/female motor drive, with crankcase heater. Lubrication is ensured by discharge and suction pressure difference. Continuous cooling capacity control is available, enabling to maximize the energy efficiency of the unit in any operating condition, integral electric motor protection and temperature sensors are inserted directly to the windings. Motor starters are delta-star type and are supplied with standard capacity step reduction
2) Heat exchangers
Shell and tube type, dry expansion evaporators are insulated with closed-cell foam material for reduced heat loss. All evaporators are incorporated with temperature probe for anti-freeze protection
3) Refrigerant circuit
Includes: compressor discharge valves, liquid lines shut-off valve, charging connector, liquid line sight glass, filter drier, thermostatic expansion valve, low pressure control with automatic reset, high pressure control with manual rest, evaporator and condenser water temperature probes for readout by unit control system
4) Electrical control panel
5) Control and safety devices

1) Power supply: 230V/1/, 380V/3/, 50Hz or 60Hz
2) Refrigerant: R407C
3) Heating only models: GSWW8, GSWW10, GSWW13, GSWW15
4) Heating & cooling models:GSWW8/B, GSWW10/B, GSWW13/B, GSWW15/B
5) Quiet: operates quietly
6) Energy saving: can decrease your home or business heating costs by between 50 and 70 percent or more, and cooling costs by 20 to 30 percent
7) Environmentally friendly: the ground source heat pump works with natural water so there are no odors or dangerous fumes in your home or office, no gas or oil fire hazards, and no chimneys or outdoor venting
8) This ground source system is recommended as the cleanest and most efficient heating and cooling system available today