American Standard YCC048F-M User Manual

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

American Standard YCC048F-M Specifications

General

Cooling Capacity	48000 BTU/H
Refrigerant	R-410A
Voltage	208/230V
SEER Rating	16 SEER
Stages	Single Stage
Phase	1

Summary

Installation, Operation, Maintenance

Installation

Location and Clearances

Conformity to local codes, fuel gas, and electrical codes for unit placement and clearances.

Placing Unit on Mounting Curb

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

Rooftop Unit Installation

Ground Level Horizontal Installation

Ductwork

Attaching Downflow Ductwork

Attaching Horizontal Ductwork

Gas Piping Installation

Gas Supply Line Pressure

Information on gas supply pressure requirements, regulators, and setting for natural gas and propane.

Manifold Pressure Check

Procedure for checking and adjusting manifold pressure at the unit gas valve for proper burner operation.

Firing Rate Selection

Input Check and Adjustment

Steps for checking and adjusting gas input rate using meter timing, flow rates, and heating value.

Electrical Wiring

Electrical Connections

Adherence to local codes and NEC for electrical wiring and grounding, including power supply.

Electrical Power Requirements

Ensuring proper electrical power availability and voltage within limits specified on the unit nameplate.

Start-Up

Pre-Start Quick Checklist

Comprehensive checklist of unit installation, wiring, and component checks before initial start-up.

Starting in Cooling Mode

Procedure for starting the unit in cooling mode, including compressor crankcase heat and thermostat settings.

Heating Cycle Procedure

Step-by-step instructions for starting the gas heating cycle, including thermostat and burner operation.

Starting Gas Heating Mode

Detailed steps for starting the unit in heating mode, including gas purging, thermostat settings, and burner checks.

Manifold Pressure Adjustment

Sequence of Operation

Heating Cycle Operation

Safety Sequences and Limit Controls

Explanation of safety controls like pressure switch, limit switch, and flame rollout switch during operation.

Cooling Cycle Operation

Troubleshooting Chart

Maintenance

Routine Maintenance by Owner