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Trane Precedent YSJ072 User Manual

Trane Precedent YSJ072
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RT-SVX071D-EN
5
Main Unit Power . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Standard Wiring . . . . . . . . . . . . . . . . . . . . . . 43
Optional TBUE Wiring (Through-the-
Base Electrical Option) . . . . . . . . . . . . . . . . 43
Field-Installed Control Wiring . . . . . . . . . . . 44
Control Power Transformer. . . . . . . . . . . . . 44
Controls using 24 Vac . . . . . . . . . . . . . . . . . 44
Controls using DC Analog Input/
Outputs (Standard Low Voltage Multi
conductor Wire). . . . . . . . . . . . . . . . . . . . . . . 46
DC Conductors . . . . . . . . . . . . . . . . . . . . . . . 47
Space Temperature Averaging . . . . . . . . . . . . . 47
Pre-Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Voltage Imbalance . . . . . . . . . . . . . . . . . . . . . . . . 50
Electrical Phasing (Three Phase
Motors). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Compressor Crankcase Heaters . . . . . . . . . . . . 51
Symbio Controls. . . . . . . . . . . . . . . . . . . . . . . . . . 51
Unit Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Sequence of Operation . . . . . . . . . . . . . . . . . . . . 53
Ignition Module – Two-stage . . . . . . . . . . . . . . . 53
Ignition Module – Modulating Gas . . . . . . . . . . . 53
Call for Heat. . . . . . . . . . . . . . . . . . . . . . . . . . 53
Ignition and Operational Failures
During a Call for Heat. . . . . . . . . . . . . . . . . . 54
Recovery from Lockout (E Code) . . . . . . . . 54
Return Air Smoke Detector. . . . . . . . . . . . . . . . . 55
Compressor Start-Up . . . . . . . . . . . . . . . . . . . . . 55
Hot Gas Reheat . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Gas Heat Units . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Final System Setup . . . . . . . . . . . . . . . . . . . . . . . 56
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Monthly Maintenance . . . . . . . . . . . . . . . . . . . . . 57
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Return Air Smoke Detector
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . 57
Condensate Overflow Switch . . . . . . . . . . . 57
Cooling Season. . . . . . . . . . . . . . . . . . . . . . . 57
Heating Season. . . . . . . . . . . . . . . . . . . . . . . 57
Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . 58
Microchannel (MCHE) Coils . . . . . . . . . . . . 58
Annual Maintenance . . . . . . . . . . . . . . . . . . . . . . 59
Final Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Wiring Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Piping Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Gas Heat Operation and Maintenance . . . . . . . 68
Gas Heat Unit General Information . . . . . . . . . . 68
Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Heating System . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Heating Cycle Operation . . . . . . . . . . . . . . . 69
Safety Controls . . . . . . . . . . . . . . . . . . . . . . . 69
Heating System Start-Up . . . . . . . . . . . . . . . . . . 69
Heating System Shutdown . . . . . . . . . . . . . . . . . 70
Turning Off Gas to Unit . . . . . . . . . . . . . . . . 71
Heating System Maintenance . . . . . . . . . . . . . . 71
Condensate Overflow Sensor
(Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Electric Air Conditioner . . . . . . . . . . . . . . . . . . . . 73
YSJ Precedent Models . . . . . . . . . . . . . . . . 73
Table of Contents

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Trane Precedent YSJ072 Specifications

General IconGeneral
BrandTrane
ModelPrecedent YSJ072
CategoryAir Conditioner
LanguageEnglish

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