Carrier 48FC04-07 Rooftop Unit Service and Maintenance Instructions

This document provides comprehensive service and maintenance instructions for the Carrier 48FC04-07 Single Package Rooftop Gas Heat/Electric Cooling Unit. Designed for commercial applications, this manual details critical procedures for ensuring optimal performance and longevity of the unit.

It covers essential topics including safety considerations, unit arrangement and access, routine maintenance schedules, and detailed procedures for the supply fan, cooling system, and gas heating system. The guide also addresses advanced control systems like SystemVu™ and RTU Open, economizer systems, and troubleshooting common issues.

This manual is intended for trained and qualified service personnel, offering in-depth guidance on component replacement, system checks, and operational adjustments to maintain the unit's efficiency and reliability.

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