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Trane Precedent TSC090H User Manual

Trane Precedent TSC090H
20 pages
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April 2020
RT-SVF55F-EN
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.
Packaged Rooftop Air Conditioners
Precedent™– Cooling, Gas/Electric
7.5 Ton Standard Efficiency Rooftop Units
Service Facts
Model Numbers
TSC090H YSC090H
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Trane Precedent TSC090H Specifications

General IconGeneral
Model NumberTSC090H
CategoryAir Conditioner
Cooling Capacity7.5 Tons
Heating CapacityNot Applicable
Compressor TypeScroll
Refrigerant TypeR-410A
Voltage208/230V
Phase3
Sound Level (Outdoor Unit)76 dB

Summary

Safety and Installation Precautions

Warnings, Cautions, and Notices Definitions

Defines safety advisories like warnings, cautions, and notices used throughout the manual.

Environmental and Refrigerant Practices

Covers environmental concerns, ozone layer impact, and responsible refrigerant handling requirements.

Field Wiring and PPE Requirements

Details critical safety requirements for field wiring, grounding, and personal protective equipment.

Document Information and Revisions

Adherence to EHS Policies

Mandates all personnel follow company EHS policies for hazardous work, superseding local regulations if more stringent.

Document Copyright and Trademarks

States document ownership by Trane, prohibition of reproduction, and trademark rights of respective owners.

Revision History

Lists updates made to the document, including specific data and chart revisions.

General Data

Unit Performance Specifications

Details cooling capacity, EER, IEER, heating output, and efficiency ratings.

Component Specifications

Covers outdoor/indoor coil details, fan/motor specs, filters, and refrigerant charge.

Heating Input and Gas Supply

Provides heating input values, burner stages, and gas connection pipe sizes.

Performance Data - Fan Speeds

Standard Motor Fan Speeds

Lists fan speeds in RPM for standard motors with various sheave settings and static pressures.

Oversized Motor Fan Speeds

Details fan speeds for oversized motors across different sheave settings and static pressures.

Electric Heater Temperature Rise

Provides air temperature rise data across electric heaters for different kW inputs and stages.

Evaporator Fan Performance

1-hp Motor Performance

Details fan RPM and BHP for 1-hp standard motors across various static pressures and drive types.

3-hp Motor Performance

Lists fan RPM and BHP for 3-hp oversized motors with different drive configurations and static pressures.

Fan Motor Heat Calculation

Provides formulas to calculate fan motor heat output (MBH) based on fan BHP.

Evaporator Fan Performance - Horizontal Airflow

1-hp Motor Data

Presents fan RPM and BHP for 1-hp motors at various static pressures for horizontal airflow.

3-hp Motor Data

Details fan RPM and BHP for 3-hp motors across static pressures for horizontal airflow.

Fan Motor Heat Notes

Explains fan motor heat calculation and reliability of factory-supplied motors.

Evaporator Fan Performance - Gas Heat

1-hp Motor Performance - Gas Heat

Lists fan RPM and BHP for 1-hp motors with gas heat, covering various static pressures and airflow.

3-hp Motor Performance - Gas Heat

Details fan RPM and BHP for 3-hp motors with gas heat at different static pressures and airflow.

Motor Reliability Notes

Provides notes on motor heat calculation and the reliability of factory-supplied motors.

Evaporator Fan Performance - Horizontal Airflow Gas Heat

1-hp Motor Data - Horizontal Airflow Gas Heat

Presents fan RPM and BHP for 1-hp motors with gas heat for horizontal airflow.

3-hp Motor Data - Horizontal Airflow Gas Heat

Details fan RPM and BHP for 3-hp motors with gas heat for horizontal airflow.

Motor Heat and Reliability

Explains fan motor heat calculation and notes on factory-supplied motor reliability.

Evaporator Fan Performance - High Gas Heat

1-hp Motor Performance - High Gas Heat

Lists fan RPM and BHP for 1-hp motors at high gas heat settings across static pressures.

3-hp Motor Performance - High Gas Heat

Details fan RPM and BHP for 3-hp motors at high gas heat settings across static pressures.

Motor Heat Calculation Formulas

Provides formulas for calculating fan motor heat (MBH) from fan BHP for different motor sizes.

Evaporator Fan Performance - Horizontal High Gas Heat

1-hp Motor Data - Horizontal High Gas Heat

Presents fan RPM and BHP for 1-hp motors with horizontal high gas heat across static pressures.

3-hp Motor Data - Horizontal High Gas Heat

Details fan RPM and BHP for 3-hp motors with horizontal high gas heat across static pressures.

Motor Notes and Reliability

Includes notes on motor heat calculation, pressure drop, and factory motor reliability.

Pressure Curves

Cooling Cycle Pressure Curve

Illustrates the cooling cycle pressure curve based on indoor airflow of 400 CFM/Ton at various ambient conditions.

Subcooling Charging Charts

Subcooling Chart - 320 cfm/ton

Graph showing liquid pressure vs. liquid temperature for subcooling charge adjustment at 320 cfm/ton.

Subcooling Chart - 400 cfm/ton

Graph illustrating liquid pressure vs. liquid temperature for subcooling charge adjustment at 400 cfm/ton.

Subcooling Chart - 480 cfm/ton

Displays liquid pressure vs. liquid temperature for subcooling charge adjustment at 480 cfm/ton.

Refrigerant Circuit Diagram

Cooling System Refrigerant Flow

Diagram showing the refrigerant flow path in the cooling system, including key components.

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