York Sunline 2000 BCH 048 User Manual

INSTALLATION
MANUAL
CAUTION: READ ALL SAFETY GUIDES BEFORE YOU
BEGIN TO INSTALL YOUR UNIT.
SAVE THIS MANUAL
SUNLINE 2000™
SINGLE PACKAGE HEAT PUMP
BCH 036, 048 & 060
177820-YIM-A-0506
CONTENTS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
SAFETY CONSIDERATIONS. . . . . . . . . . . . . . . . . 4
INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
REFERENCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
RENEWAL PARTS . . . . . . . . . . . . . . . . . . . . . . . . . 4
APPROVALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
PRODUCT NOMENCLATURE . . . . . . . . . . . . . . . . 5
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
START-UP (COOLING) . . . . . . . . . . . . . . . . . . . . 31
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . 32
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . 34
See the following page for a complete Table of Contents.
NOTES, CAUTIONS AND WARNINGS
The installer should pay particular attention to the words:
NOTE, CAUTION, and WARNING. Notes
are intended to
clarify or make the installation easier. Cautions
are given
to prevent equipment damage. Warnings
are given to
alert installer that personal injury and/or equipment dam-
age may result if installation procedure is not handled
properly.
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York Sunline 2000 BCH 048 Specifications

General

Model Number	BCH 048
Category	Heat Pump
Series	Sunline 2000
Refrigerant	R-410A
Voltage	208/230 V
Phase	1
Sound Level (Outdoor Unit)	76 dB
Cooling Capacity	48000 BTU/h

Summary

General Unit Information

Safety Considerations and Precautions

General Safety Precautions

Emphasizes qualified personnel, following literature, labels, and safety codes for safe operation.

Installation Guidelines

Installation Safety Information and Limitations

Covers safety instructions, usage restrictions, and compliance with national and local codes.

Unit Location Selection

Clearances for Operation and Service

Ductwork Design and Condensate Drain

Typical Power Wiring Diagrams

Typical Control Wiring Diagrams

Power and Control Wiring Standards

Economizer Set Point Adjustments

Minimum Position Adjustment for Dampers

Enthalpy Set Point Adjustment

Electrical Data - Direct Drive

Electrical Data - Direct Drive (Continued)

Electrical Data - Belt Drive

Electrical Data - Belt Drive (Continued)

Minimum Clearances Table

Blower Performance - 3 Ton Belt Drive

Blower Performance - 4 Ton Belt Drive

Blower Performance - 5 Ton Belt Drive

Blower Performance - Direct Drive

Phasing and Belt Adjustment

Figure 12 - Belt Adjustment

Operation Overview

Sequence of Operations Overview

Explains how the thermostat and UCB control cooling and heating cycles.

Cooling Sequence - Continuous Blower

Intermittent Blower Operation

Economizer with Single Enthalpy Sensor

Economizer with Dual Enthalpy Sensors

Economizer with Power Exhaust

Cooling Operation Errors

High-Pressure Limit Switch

Low-Pressure Limit Switch

Freestat Operation

Low Ambient Cooling Mode

General Safety Controls

Compressor Protection

Flash Codes and Reset

Heating Sequence of Operations

Defrost Mode

Electric Heat Safety Controls

Start-Up (Cooling)

Prestart Check List

Essential checks to perform before powering on the unit for installation.

Operating Instructions

Post Start Check List

Shut Down Procedure

Troubleshooting

Cooling Troubleshooting - Blower Motor Issues

Steps to troubleshoot the supply air blower motor not energizing or running.

Cooling Troubleshooting - Compressor Issues

Cooling Troubleshooting - Economizer Issues

Unit Control Board Flash Codes

Maintenance Procedures

Normal Maintenance Procedures

Filter Inspection and Replacement

Motor Maintenance

Outdoor Coil Cleaning