YASKAWA PVI 23 TL Installation And Operation Manual page 14

PVI 23TL, 28TL Installation and Operation Manual (Rev J)
 The ambient temperature must be between -25°C and +45°C for full power and continuous
operation. The inverter will automatically reduce power or may shut down to protect itself if
ambient air temperature is outside the normal operating range.
 The National Electrical Code (NEC) requires the inverter to be connected to a dedicated circuit
with no other outlets or devices connected to this circuit (see NEC Articles 690 and 705). The
NEC also imposes limitations on the size of the inverter and the manner in which it is
connected to the utility grid (see NEC Articles 690 and 705 for guidance within the US).
 The cooling air exhausts are at the right of the inverter. As the air intake is on the left side of
the inverter section of the unit, there should be at least 12 inches of clear space at the left of
the enclosure. Air should be able to flow all around the unit for proper ventilation.
 It is also recommended to have at least 24 inches of clearance at the bottom side for the
Inverter LCD to be at eye level (see Figure 3.3 for details).
 A minimum distance of 12 inches must be clear above the inverter for ventilation.
 If you are installing the inverter in a utility vault or electrical closet, the air circulation must be
sufficient for heat dissipation. Provide external ventilation to maintain an ambient condition
of 45°C or less for full power. The ambient temperature should be kept as low as possible at
all times for optimal inverter operation and life.
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