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Trane Precedent YZC036E User Manual

Trane Precedent YZC036E
60 pages
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Packaged Rooftop Air Conditioners
Precedent™ with eFlex™
Technology, Gas/Electric
3 to 10 Tons - 60 Hz
Installation, Operation, and Maintenance
January 2021
RT-SVX46G-EN
Model Numbers:
YZC036E YZC072F
Model Numbers:
YZC048F YZC090F
Model Numbers:
YZC060E YZC102F
Model Numbers:
YZC120F
SAFETY WARNING
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of
heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training.
Improperly installed, adjusted or altered equipment by an unqualified person could result in death or serious injury.
When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that are
attached to the equipment.

Table of Contents

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Trane Precedent YZC036E Specifications

General IconGeneral
ModelYZC036E
CategoryAir Conditioner
Energy Efficiency Ratio (EER)11.5
Heating Seasonal Performance Factor (HSPF)Not Applicable
RefrigerantR-410A
Compressor TypeScroll
Voltage208/230 V
Frequency60 Hz
Sound Level (Outdoor Unit)74 dB
Cooling Capacity36, 000 BTU/h

Summary

Introduction

Warnings, Cautions, and Notices

Defines the three types of advisories: WARNING, CAUTION, NOTICE.

Safety and Hazard Information

Covers critical safety warnings for wiring, grounding, and PPE requirements.

Environmental and Refrigerant Practices

Discusses environmental concerns and responsible refrigerant handling.

EHS Policies and Document Information

Adherence to EHS policies, copyright, trademarks, and revision history.

Model Number Description

Model Number Notes

Provides important notes and clarifications regarding model number configurations.

General Information

Unit Inspection and Storage

Procedures for inspecting the unit upon arrival and proper storage guidelines.

Unit Overview and Components

Description of unit features, nameplates, and optional components like Clogged Filter Switch.

Control System Components

Details on Compressor Disable, Protection, Drain Pan Switch, DLTS, Humidity, Economizer, Frost Control, High Pressure Control, High Temp Sensor.

Interface and Control Options

Covers Human Interface, Low Pressure Control, VAV, Phase Monitor, Power Exhaust, Zone Sensors, and Communication Interfaces.

System Input Devices

Details Remote Zone Sensors, Communication Interfaces, RTOM, and Variable Air Volume control.

Smoke Detector and Fan Failure Input

Explains Smoke Detector functionality and Supply Fan Failure Input.

Zone Sensing and Control Options

Groups various zone sensors and input devices for system control.

Pre-Installation

Fiberglass Wool Safety

Warns about fiberglass hazards and required PPE and first aid.

Dimensions and Weights

Unit Clearances and Weights

Illustrates clearances, weights, and center of gravity for unit installation.

Heavy Objects and Improper Unit Lift

Warns about hazards of lifting heavy components and proper lifting procedures.

Base Unit Weights and Center of Gravity

Presents weights and center of gravity dimensions for gas/electric models.

Factory Installed Options Weights

Lists net weights for various factory-installed options and accessories.

3-Ton Unit Dimensional Views

Provides dimensional views for 3-ton ultra high efficiency units.

3-Ton Downflow Utilities Dimensions

Illustrates downflow utilities for 3-ton units with through-the-base connections.

3-Ton Horizontal Airflow Dimensions

Shows dimensions for 3-ton horizontal airflow supply and return.

3-Ton Unit Clearance and Roof Opening

Shows clearance requirements and roof opening sizes for 3-ton units.

3-Ton Roof Curb Dimensions

Shows roof curb dimensions for 3-ton units.

3-Ton Downflow Duct Connections

Illustrates downflow duct connections for field fabrication on 3-ton units.

3-Ton Economizer/Damper Dimensions

Shows dimensions related to economizer and fresh air damper options on 3-ton units.

3-Ton Economizer Hood Dimensions

Illustrates dimensions for economizer and barometric relief damper hood on 3-ton units.

3-Ton Hinged Door Swing Diameter

Shows swing diameter for hinged doors on 3-ton units.

4-5 Ton Unit General Dimensions

Presents general dimensions for 4 to 5 ton ultra high efficiency units.

4-5 Ton Downflow Utilities Dimensions

Illustrates downflow utilities for 4-5 ton units with through-the-base connections.

3-Ton Gas Pipe Height Requirements

Shows required gas pipe height for 3-ton Y_C models.

4-5 Ton Unit Clearance and Roof Opening

Illustrates unit clearance and roof opening for 4-5 ton units.

4-5 Ton Roof Curb Dimensions

Shows roof curb dimensions for 4-5 ton units.

4-5 Ton Downflow Duct Connections

Illustrates downflow duct connections for field fabrication on 4-5 ton units.

4-5 Ton Economizer/Damper Dimensions

Shows dimensions for economizer/fresh air damper on 4-5 ton units.

4-5 Ton Hinged Door Swing Diameter

Shows swing diameter for hinged doors on 4-5 ton units.

6-8.5 Ton Unit General Dimensions

Presents general dimensions for 6 to 8.5 ton ultra high efficiency units.

6-8.5 Ton Unit Clearance and Roof Opening

Illustrates unit clearance and roof opening for 6-8.5 ton units.

6-8.5 Ton Roof Curb Dimensions

Shows roof curb dimensions for 6-8.5 ton units.

6-8.5 Ton Downflow Utilities Dimensions

Illustrates downflow utilities for 6-8.5 ton units with through-the-base connections.

6-10 Ton Downflow Duct Connections

Illustrates duct connections for field fabrication on 6-10 ton units.

6-8.5 Ton Power Exhaust Dimensions

Shows dimensions related to the power exhaust feature on 6-8.5 ton units.

6-8.5 Ton Hinged Door Swing Diameter

Shows swing diameter for hinged doors on 6-8.5 ton units.

6-10 Ton Economizer/Damper Dimensions

Shows dimensions for economizer/fresh air damper on 6-10 ton units.

6-10 Ton Gas Pipe Height Requirements

Shows required gas pipe height for 6-10 ton YZC models.

10 Ton Unit Clearance and Roof Opening

Illustrates unit clearance and roof opening for 10 ton units.

10 Ton Roof Curb Dimensions

Shows roof curb dimensions for 10 ton units.

10 Ton Power Exhaust Dimensions

Shows dimensions related to the power exhaust feature on 10 ton units.

10 Ton Hinged Door Swing Diameter

Shows swing diameter for hinged doors on 10 ton units.

Installation

Foundation and Ductwork

Guidelines for foundation installation and ductwork connections.

Roof Curb and Combustible Materials

Instructions for roof curb installation and warnings about combustible materials.

Rigging and General Requirements

Covers safe rigging procedures and installation checklists.

TCO1 and Horizontal Conversion

Details TCO1 tripping values and horizontal discharge conversion steps.

Smoke Detector and Wireless Interface Installation

Instructions for installing smoke detectors and wireless communication interfaces.

Electrical and Gas Installation

Covers main electrical power, wiring, grounding, and through-the-base gas installation.

Gas Heat Requirements and Drain Configuration

Details gas heat requirements and condensate drain configuration.

Ultra Low NOx Gas Furnace Component Layout

Identifies components of the Ultra Low NOx Gas Furnace option.

Drain Pan Removal and Filter Installation

Procedures for drain pan removal and filter installation.

Field Power Wiring and Control Wiring

Guidelines for field-installed power and control wiring, including safety.

Main Unit Power

Covers electrical power connection requirements.

DC Analog Input/Output Controls

Guides on wiring DC analog inputs/outputs and conductor sizing.

Pre-Start

Voltage Imbalance and Electrical Phasing

Procedures for checking voltage imbalance and electrical phasing for motors.

Compressor Crankcase Heaters and ReliaTel™ Controls

Information on crankcase heaters and ReliaTel™ control initialization.

Service Test Guide

Outlines different test modes for component operation verification.

Test Modes

Explains different test modes for component operation.

ReliaTel™™ Controls Initialization

Explains ReliaTel™ control initialization and self-diagnostics.

Unit Startup

Verifying Air Flow and Sequence of Operation

Steps for verifying airflow and understanding the unit's sequence of operation.

Cooling, Heating, and Dehumidification Modes

Explains operation modes including cooling, heating, and enhanced dehumidification.

Economizer and Warm-up Controls

Details economizer operation and warm-up controls like MWU and DWU.

Return Air Smoke Detector

Explains how the return air smoke detector functions.

Economizer Startup and Minimum Position Setting

Covers economizer startup and setting the minimum damper position.

Compressor Startup

Procedures for starting and checking compressors, including scroll compressor operation.

Gas Heat Units Startup

Steps for starting gas heat units and resetting the RTRM.

Dip Switch Settings

Details how to verify dip switch settings for unit models.

Final System Setup

Final checks after pre-start and startup procedures.

Programming and Final Unit Checks

Steps for programming panels and final unit inspections before operation.

Maintenance

Hazardous Service Procedures and Rotating Components

General safety precautions for maintenance tasks involving hazards.

Monthly Maintenance Tasks

Lists tasks for monthly maintenance, including filters and coil checks.

Coil Cleaning Procedures

Provides instructions for cleaning microchannel and round tube coils.

Microchannel (MCHE) Coils

Covers coil damage warnings and cleaning procedures for MCHE coils.

Round Tube Plate Fin (RTPF) Coils

Details cleaning procedures for RTPF coils, including chemical use warnings.

Annual Maintenance and Final Process

Outlines annual maintenance tasks and recording operational data.

Troubleshooting

ReliaTel™ Control Diagnostics

Steps for checking ReliaTel™ module diagnostics and system status.

System Status Checkout Procedure

Methods for checking system status using LED indicators or voltage readings.

Failure Indications and Resetting Lockouts

Lists failure causes and procedures for resetting cooling/ignition lockouts.

System Failure

Checks voltage between terminals for system failure indication.

Heating Failure

Verifies heat failure using the Ignition Module (IGN) LED indicator.

Cooling Failure

Identifies causes for cooling failure and related component checks.

Service Failure

Checks for supply fan proving switch, clogged filter, and condensate overflow switch issues.

Zone Temperature Sensor (ZTS) Tests

Procedures for testing zone temperature sensors and setpoints.

Clogged Filter Switch

Explains the function of the SERVICE LED for clogged filters.

Unit Operation Without Zone Sensor

Procedure for temporary unit operation without a zone sensor.

ReliaTel™ Refrigeration Module (RTRM) Default Chart

Explains RTRM default mode operation when building management input is lost.

Fault Detection and Economizer Troubleshooting

Explains fault codes and troubleshooting for economizer control.

Unit Wiring Diagrams Numbers

Wiring Diagram References

Lists drawing numbers for various control, power, and connection wiring diagrams.

Limited Warranty

Combination Gas Electric Air Conditioner Warranty

Details the warranty terms for the Combination Gas Electric Air Conditioner.

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