Page 2 - Examine the furnace casing for obvious signs of deterioration.; FIGURE 1: Component Locations; FIRE OR EXPLOSION HAZARD; FIGURE 2: Burner Flame Drawing; FIGURE 3: Furnace Examination Checkpoints
127237-UUM-A-0605 2 Unitary Products Group 7. NEVER . . .Store flammable materials of any kind near your fur-nace. Gasoline, solvents, and other volatile liquids should bestored only in approved containers outside your home. Thesematerials vaporize easily and are extremely dangerous. 8. NEVER . . .S...
Page 3 - Operating Instructions:; FIGURE 5: Gas Piping
127237-UUM-A-0605 Unitary Products Group 3 HOW YOUR GAS FURNACE WORKS Your furnace is a very easy appliance to take for granted. Season afterseason, it sits there in your home, keeping you warm and comfortable.For this reason, you may never have given much thought to the wayyour furnace operates. In...
Page 4 - Blower Care; How to Clean your Filter
127237-UUM-A-0605 4 Unitary Products Group FURNACE USER MAINTENANCE Blower Care Even with good filters properly in place, blower wheels and motors willbecome dust laden after long months of operation. The entire blowerassembly should be inspected annually. If the motor and wheel areheavily coated wi...
Page 5 - Unitary Products Group; Motor Lubrication; SECTION II: SERVICE AND MAINTENANCE; SAFETY SECTION; Continuous Blower
127237-UUM-A-0605 Unitary Products Group 5 If, during the inspection of your furnace, you find any of the followingconditions: • Excessive amounts of dust and lint on components. • Damaged or deteriorated components or surfaces. • Leaks or blockage in the vent pipe passages. • Water on any surface i...
Page 6 - Hot Surface Ignition System; FURNACE CLEANING SECTION; Burner Removal/Cleaning; TROUBLESHOOTING; SLOW AMBER FLASH: Normal operation with call for heat.
127237-UUM-A-0605 6 Unitary Products Group A momentary loss of gas supply, flame blowout, or a faulty flame probecircuit will result in a disruption in the flame and be sensed within 1 sec-ond. The gas valve will de-energize and the control will begin a recycleoperation. A normal ignition sequence w...
Page 7 - NOTE: If a flame is detected the control flashes the LED for 1/8 of a; second and then enters a flame stabilization period.; DIAGNOSTIC FAULT CODE STORAGE AND; Normal flame sense current is approximately; FIGURE 9: Furnace Control Event Schedule
127237-UUM-A-0605 Unitary Products Group 7 1 RED FLASH: This indicates that flame was sensed when there wasnot a call for heat. With this fault code the control will turn on both theinducer motor and supply air blower. A gas valve that leaks through oris slow closing would typically cause this fault...
Page 8 - SECTION III: REPLACEMENT PARTS LIST
127237-UUM-A-0605 8 Unitary Products Group SECTION III: REPLACEMENT PARTS LIST 2 5 7 10 11 13 14 17 18 29 32 34 35 41 42 46 55 67 75 74 72 71 45 85 88 26 27 9, 37 4 2 62 25 14 5 28 30 43 53 44 51 6 50 22 20 21 56,57 65 1 16 15 17 56 74 58 48 49 24 52 54 6 9,37 10 19 23 28 14 30 33 36 40 43 44 46 47 ...
Page 10 - FIELD INSTALLED ACCESSORIES - NON-ELECTRICAL; REPLACEMENT PART CONTACT INFORMATION; York International
127237-UUM-A-0605 10 Unitary Products Group FIELD INSTALLED ACCESSORIES - NON-ELECTRICAL MODEL NO. DESCRIPTION USED WITH 1NP0347 PROPANE (LP) CONVERSION KIT ALL MODELS 1CT0302 CONCENTRIC INTAKE/VENT 2” ALL MODELS EXCEPT 120 MBH 1CT0303 CONCENTRIC INTAKE/VENT 3” ALL MODELS 1PS0904 HIGH ALTITUDE PRESS...
Page 11 - SECTION IV: WIRING DIAGRAM; FIGURE 10: Wiring Diagram
127237-UUM-A-0605 Unitary Products Group 11 SECTION IV: WIRING DIAGRAM FIGURE 10: Wiring Diagram
Page 12 - Limited Warranty; Cleaning or replacement of filters.
Subject to change without notice. Printed in U.S.A. 127237-UUM-A-0605 Copyright © by Unitary Products Group 2005. All rights reserved. Supersedes: 104449-UUM-A-1204 Unitary 5005 Norman Products York OK Group Drive 73069 Limited Warranty UPG warrants this product to be free from defects in factory wo...