A52x Series Refrigeration Controller with Adaptive Defrost Installation Instructions
5
Low-Voltage Wiring
Figure 4 on page 5 and Table 2 on page 6 provide information about the low-voltage wiring terminal blocks, wiring
terminal labels, and recommended wire sizes
Figure 4: A52x Controller Low-Voltage Terminal Block Connections
Risque de décharge électrique.
Débrancher ou isoler toute alimentation avant de réaliser un branchement électrique. Plusieurs isolations et
débranchements sont peut-être nécessaires pour-couper entièrement l'alimentation de l'équipement. Tout contact
avec des composants conducteurs de tensions dangereuses risque d'entraîner une décharge électrique et de
provoquer des blessures graves, voire mortelles.
IMPORTANT: Use copper conductors only. Make all wiring in accordance with local, national, and regional
regulations.
IMPORTANT: Do not exceed the A52x Controller electrical ratings. Exceeding controller electrical ratings can
result in permanent damage to the controller and void any warranty.
IMPORTANT: Run all low-voltage wiring and cables separate from all high-voltage wiring and route wires per
NEC or local electrical code requirements. Shielded cable is recommended for low-voltage cables that are
exposed to high electromagnetic or radio frequency noise.
IMPORTANT: Electrostatic discharge can damage control components. Use proper electrostatic discharge
precautions during installation, setup, and servicing to avoid damaging the controller.
IMPORTANT: Do not connect supply power to the controller before finishing wiring and checking all wiring
connections. Short circuits or improperly connected wires can result in damage to the controller and void any
warranty.
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