The KPO5-21H requires a 208V / 60Hz / 1Ø 60 Amp Circuit or 230V / 60Hz / 1Ø 50 Amp Circuit which must be hardwired by a qualified electrician. The condenser has Low Ambient Temperature Capability using a Variable Frequency Drive that will operate at temperatures below freezing. The heavy-duty base has removable wheels and forklift skid access for easy movement, setup, and transport. All KPO models come with a high functional phase monitor for electrical protection from unacceptable power, which damages electrical components. The unit also comes with an internal high lift condensate pump.