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York PC9 manual

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Table of contents for the manual

  • Page 1

    172988-YUM-A-0106 USER’S INFORMA TION, MAINTENANCE AND SER VICE MANU AL MODELS: PC9 (Modulating Downflow/Horizontal With ECM Motor) EFFICIENCY RATING CERTIFIED ISO 9001 Certified Quality Management System The manufacturer recommend s that the user read all sec- tions of this manual a nd keep the manual for future refer- ence. SECTION I: USER’S [...]

  • Page 2

    172988-YUM-A-0106 2 Unitary Products Group 7. NEVER . . .S tore flammable materials of any kind near your fur- nace. Gasoline, solvents, and ot her volatile liquids should be stored only in approved containers outside your home. These materials vaporiz e easily and are extremely dangerous. 8. NEVER . . .S tore cleaning materials near your furnace. [...]

  • Page 3

    172988-YUM-A-0106 Unitary Products Group 3 HOW Y OUR GAS FURNACE W ORKS Y o ur furnace is a very easy appliance to take for granted. Season after season, it sits there in your home, keeping you warm and comfortable. For this reason, you may neve r have given much thought to the way your furnace operates. In order to get the safest and most ef ficie[...]

  • Page 4

    172988-YUM-A-0106 4 Unitary Products Group FURNACE USER MAINTENANCE Blower Care Even with good filters properly in pl ace, blower wheels and motors will become dust laden after long months of operation. The entire blower assembly should be inspected annually . If the motor an d wheel are heavily coated with dust, they can be brushed and cleaned wit[...]

  • Page 5

    172988-YUM-A-0106 Unitary Products Group 5 If, during the inspection of your fur nace, you find any of the following conditions: • Excessive amounts of dust and lint on components. • Damaged or deteriorated components or surfaces. • Leaks or blockage in the vent pipe passages. • W ater on any sur face inside or outside of the furnace. Do no[...]

  • Page 6

    172988-YUM-A-0106 6 Unitary Products Group 1. The inducer is energized and ramps up its speed until a irflow is proven by the pressure switch an d by the pressure sensor on the control board. 2. The hot surface ignitor is energ ized. 3. After a 17-20 second igniter heatup, the gas valve opens and the burners light. 4. When the control senses that f[...]

  • Page 7

    172988-YUM-A-0106 Unitary Products Group 7 Hot Surface Ignition System TROUBLESHOO TING The following visual checks s hould be made before troubleshooting : 1. Check to see that the power to the furnace an d the ig nition control module is ON. 2. The manual shut-off valves in the gas line to the furnace must be open. 3. Make sure all wiring connect[...]

  • Page 8

    172988-YUM-A-0106 8 Unitary Products Group SECTION III: REPLACEMENT P ARTS LIST 2 7 13 14 11 5 9,37 10 80 46 45 47 54 64 19 18 27 28 33 30 35 72 71 69 68 1 2 4 5 6 14 15 16 62 55,56 54 21 23 22 31 26 25 59 48 57 60 53 44 43 51 52 49 50 18 6 9 37 14 24 20 29 31 39 43 63 46 10[...]

  • Page 9

    172988-YUM-A-0106 Unitary Products Group 9 ITEM DESCRIPTION MOTOR 1 MOTOR, DIRECT DRIVE BLOWER 2 MOTOR, INDUCER ASSY ELECTRICAL 3* CAP ACITOR 4 SWITCH, LIMIT (INDUCER) 5 LIMIT , TEMPERA TURE (Primary) 6 LIMIT , FLAME ROLL-OUT 7 CONTROL, FURNACE MODULE 7A* PLUG , JUMPER 8* SENSOR, THERMISTOR 9I G N I T E R 10 SENSOR, FLAME 1 1 SWITCH, PRESSURE 12* S[...]

  • Page 10

    172988-YUM-A-0106 10 Unitary Products Group FIELD INST ALLED ACCESSO RIES - NON-ELECTRICAL MODEL NO. DESCRIPTION USED WITH 1NP0680 PROP ANE (LP) CONVERSION KIT WITH GAS V AL VE ALL MODELS 1CT0302 CONCENTRIC INT AKE/VENT 2” 60, 80, 100 INPUT MBH 1CT0303 CONCENTRIC INT AKE/VENT 3” 100, 120 MBH 1NK0301 CONDENSA TE NEUTRALIZ ER KIT ALL MODELS 1HT09[...]

  • Page 11

    172988-YUM-A-0106 Unitary Products Group 11 SECTION IV: WIRING DIAGRAM FIGURE 9: Wiring Diagram[...]

  • Page 12

    Subject to change without notice. Printed in U.S.A. 172988-YUM-A-0106 Copyright © by Unitary Products Group 2006. All rights reserved. Supersedes: Nothing Unitary 5005 Norman Product s Y ork OK Group Drive 73069 Limited Warranty UPG warrant s this product to be fr ee from defects in factory workmanshi p and material under n ormal use and service a[...]