York GY8S160E30UH21 service manual

Contents

Main USERS INFORMATION, MAINTENANCE AND SERVICE MANUAL HIGH EFFICIENCY COMMERCIAL BELT DRIVE SERIES MODELS: GY8S160E30UH21 (Single Stage Upflow /Horizontal) SECTION I: USERS INFORMATION 272442-UUM-B-1211 INSTRUCTIONS FOR EXAMINING THE FURNACE INSTALLATION Unitary Products Group 3 HOW YOUR GAS FURNACE WORKS START-UP AND SHUTDOWN INSTRUCTIONS Read the Instructions Below Before Trying to Start the Furnace Operating Instruction s: To Turn Off the Appliance: 272442-UUM-B-1211 FURNA CE USER MAINTENANCE Air Filters Removing the Air Filters Unitary Products Group 5 SECTION II: SERVICE AND MAINTENANCE MANUAL SAFETY SECTION FURNACE MAINTENANCE SECTION FURNACE CLEANING SECTION Burner Removal/Cleaning Cleaning the H ea t Exc hanger SEQUENCE OF OPERATION Continuous Blower 272442-UUM-B-1211 Unitary Products Group 7 Hot Surface Ignition System TROUBLESHOOTING FURNACE CONTROL DIAGNOSTICS DIAGNOSTIC FAULT CODE STORAGE AND RETRIEVAL SECTION III: REPLACEMENT PARTS LIST 10 Unitary Products Group FIELD INSTALLED ACCESSORIES - NON-ELECTRICAL MODEL NO. DESCRIPTION REPLACEMENT PART CONTACT INFORMATION Page Johnson Co ntro ls Unitary Products 5005 York Drive Norman, OK 73069 Limited Warranty EXCLUSIONS