AEC NEC Central Station Air and Water Cooled Chiller - Manual (Page 14)

NEC Series Water- and Air-Cooled Central Chillers Page 13
3 Installation
3-1 Electrical Connections
Figures 1 and 2
Check the serial tag voltage and amperage requirements and make sure your electrical service
conforms.
Bring properly sized power leads and ground from a fused disconnect (installed by your
electrician) to the unit. Use fuses in the disconnect switch, sized according to the National
Electrical Code recommendations listed on the electrical schematic in the control enclosure.
! WARNING !
• Electrical connections must comply with all applicable electrical
codes.
• The chiller must be grounded in accordance with NEC Article 250.
• Voltage must be within plus or minus ten percent (±10%) of the
nameplate rating.
• Phase imbalance must be less than 2% in accordance with NEMA
MG1-14.32.
• Air-cooled remote condensers must have properly-sized
disconnects conforming with all local codes.