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Carrier 50EJ, EK, EW, EY Series Rooftop Units

Installation, Start-Up, and Service Instructions

About This Manual

This document provides essential guidance for the proper installation, initial start-up, and ongoing service of Carrier's 50EJ, EK, EW, and EY series single-package rooftop units. These units are designed for electric cooling with electric heat options, serving commercial and industrial applications.

Key Information Covered

The manual details critical safety considerations, step-by-step installation procedures including unit support and ductwork connections, electrical wiring, economizer adjustments, and accessory installations. It also covers comprehensive start-up checks, troubleshooting common issues, and essential service and maintenance procedures.

Important Considerations

Installation and servicing should only be performed by trained and qualified service personnel. Adherence to all safety codes, manufacturer instructions, and local regulations is paramount to ensure safe operation and optimal performance of the equipment.

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