The HVW701 is a CFW701 hardwired into a Nema 1 enclosure with a bypass contactor. The CFW701 HVAC-R covers power levels from 1.1 to 132 kW (1.5 to 175 HP). Single-phase and three-phase power supply voltages of 200-240 V, 380-480 V and 500-600 V. 24 V cd power supply board for control feeding (optional). Flash memory module: In few seconds, it is possible to download the programming from a CFW701 to others without powering them up. Communication protocols: Modbus RTU, BACnet MS/TP and Metasys N2. Special features required for HVAC-R system applications.