Liquid water and antifreeze coolant (propylene glycol inhibited) on a monoblock structure made of stainless steel profiles and side panels with flat sheets, varnished aluminum, bolted on the structure. Cold section: • Alternative semi-hermetic compressor with pistons, mounted on anti-vibration feet, fitted with shut-off taps, oil heater, lubricant circulation pump, silencer and anti-vibration coupling mounted on exhaust pipes. • Comprehensive electronic protection for the compressor (Kriwan module), against excessive winding of the electric motor and exhaust gas. • Differential oil pressure switch, for controlling the compressor lubrication circuit. • Safety pressure switches for high and low pressure control on the coolant circuit. • Pressure gauges for visual inspection of evaporation and condensation pressures. • Air condenser, with automatic helical fans with condensation pressure control. • AISI 316 stainless steel plate evaporator, powered by thermostatic expansion valve and insulated with suitable material for low temperature. • Liquid gas refrigerator line, consisting of liquid receiver, PED certified safety valve, dewatering filter, flow indicator and humidity, solenoid valve. • Gas circuit complete with copper tubes. Hydraulic section: • Storage tank built entirely in stainless steel, insulated for low temperature, suitable for operation with open type atmospheric pressure plant; complete with temperature reader for refrigerated liquid. • Two centrifugal pumps with stainless steel part, one for the liquid recirculation inside the chiller and one dedicated for the user lines, designed for operation in automatic mode (eg controlled by a temperature control panel) . Management and Command Section: • Electric chiller control panel, equipped with: - operating lights and light switches - microprocessor thermostat for regulating glycol temperature - continuous display of temperature on bright display - Three-phase disconnector with door lock function - circuit-breakers and thermal relays for protection of each of the electric motors Technical data: • Power rating: 22.7 kW • Supply voltage: 400V / 3 ~ / 50hz + N + T • Compressor power: 18 kW (25 HP) • HFC refrigerant gas charge: R507 • Total refrigerating capacity (with R507 and condensation at + 40 ° C): - 48.670 Frig / h (56.6 kW) with glycol leaving at + 5 ° C - 40.420 Frig / h (47.0 kW) with glycol extending at 0 ° C - 27.260 Frig / h (31.7 kW) with glycol at -10 ° C • Typical pump user data: - Electrical power: 0.9 kW - MAX capacity with prevalence: 15.0 m3 / h with 12.5 m.c. - Range with MAX prevalence: 4.8 m3 / h with 20.6 m.c. The chiller is equipped with: - Certification of work carried out in accordance with the provisions of PED Directive 2014/68 / EU Machinery Directive 2006/42 / EC Electromagnetic Compatibility Directive 2004/108 / EC - Use and maintenance manual complete with hydraulic and electrical diagrams