Wiring - PENN Controls - MR534AFDN - MR534AFDV - Electronic Refrigeration, Defrost, and Multi-Purpose Controller - MR5xx Panel‐Mount Refrigeration and Defrost Controller

MR5 Series Panel Mount Case Controller Installation Guide

Product name
MR5xx Panel‐Mount Refrigeration and Defrost Controller
Document type
Installation Guide
Document revision
D
Revision date
2019-08-16
Product status
Discontinued
Part number
24-07664-03388

Observe the following wiring guidelines.

WARNING
  • Risk of Electric Shock
  • Disconnect or isolate all power supplies before making electrical connections. More than one disconnection or isolation may be required to completely de-energize equipment. Contact with components carrying hazardous voltage can cause electric shock and may result in severe personal injury or death.
Avertissement
  • 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:
  • Do not exceed the electrical ratings. Exceeding electrical ratings can result in permanent damage and void any warranty.
  • Electrostatic discharge (ESD) can damage control components. Use proper ESD precautions during installation, setup, and servicing to avoid damage.
  • Do not connect supply power before finishing wiring and checking all wiring connections. Short circuits or improperly connected wires can result in damage and void any warranty.
  • Run all low-voltage wiring and cables separate from all high-voltage wiring and route wires per national electrical code (NEC) or local electrical code requirements. Use shielded cable for low-voltage cables that are exposed to high electromagnetic or radio frequency noise.
  • Use copper conductors only. Make all wiring in accordance with local, national, and regional regulations.