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American Standard YCC024F-L User Manual

American Standard YCC024F-L
24 pages
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All phases of this installation must comply with the NATIONAL, STATE & LOCAL CODES. In the absence of local codes, the
installation must conform with National Electric Code -- ANSI/NFPA 70 or "LATEST REVISION."
Since Trane has a policy of continuous product and product data improvement,
it reserves the right to change design and specification without notice.
© 2003 American Standard Inc. All rights reserved
Dwg. No. X664209 P01
INSTALLATION
OPERATION
MAINTENANCE
ALL phases of this installation must comply with
NATIONAL, STATE AND LOCAL CODES
IMPORTANT — This Document is customer property and is to remain with this unit. Please return to service information pack upon completion of work.
Package Convertible
Gas/Electric
1-1/2 - 5 Ton
Model:
YCC018F-L YCC036F-H
YCC024F-L YCC042F-M
YCC030F-L YCC048F-M
YCC030F-M YCC048F-H
YCC036F-L YCC060F-M
YCC036F-M
BAYLIFT002A Lifting Lug Kit
HAZARDOUS VOLTAGE - DISCONNECT POWER BEFORE SERVICING
WARNING:
YCC-IOM-1L
18-EB21D1-11
Library
Product Section
Product
Model
Literature Type
Sequence
Date
File No.
Supercedes
Service Literature
Unitary
Packaged Gas/Electric
YCC
Installation, Operation, Maintenance
1I
November 2003
SV-UN-RT-YCC-IOM-1I 11/03
YCC-IOM-1H
10/03
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American Standard YCC024F-L Specifications

General IconGeneral
Cooling Capacity24, 000 BTU/h
Refrigerant TypeR-410A
Voltage208/230 V
Phase1
Compressor TypeScroll
Sound Level (Outdoor Unit)72 dB
StagesSingle
Maximum Overcurrent Protection25 A
Minimum Circuit Ampacity15 A
SEER Rating14

Summary

Unit Overview and Identification

Critical Safety Warning

Emphasizes the danger of hazardous voltage and the need for power disconnection.

Unit Dimensions and Clearances

Installation Requirements and Procedures

Placing Unit on Mounting Curb

Unit Placement on Curb

Detailed steps for positioning and securing the unit onto the roof curb.

Hold-Down Bracket Installation

Instructions for using hold-down brackets to secure the unit to the curb.

Rooftop Unit Installation

Gas Piping Installation and Pressure Setup

Gas Piping Connection Guidelines

Procedures for connecting the gas supply line to the unit.

Gas Pressure Setup Precautions

Safety warnings and procedures for setting gas pressure.

Gas Components and Flue System

Firing Rate and High Altitude Adjustment

Firing Rate Selection and Conversion

Procedures for selecting and converting the unit's firing rate.

Filters and Electrical Wiring

Electrical Wiring and Connections

Guidelines for electrical connections, power wiring, and control wiring.

Electrical Wiring Diagrams and Thermostat

Unit Start-Up Procedures

Pre-Start Checklist and Voltage Check

Essential checks before starting the unit, including voltage.

Heating Cycle Operation

Step-by-step guide for starting and operating the unit in heating mode.

Heating Start-Up and Checks

Gas Heating Mode Start-Up

Detailed steps for initiating and verifying gas heating operation.

Manifold Pressure Adjustment

Procedure for checking and adjusting manifold pressure.

Sequence of Operation

Heating Cycle Operation Sequence

Description of the heating cycle initiation and progression.

Troubleshooting System Faults

Refrigerant Circuit Faults

Common issues related to refrigerant circuits and their causes.

Electrical Faults

Common electrical problems and their primary/secondary causes.

Unit Maintenance Procedures

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