York Affinity DNP048 User Manual

CONTENTS
INSTALLATION SAFETY INFORMATION . . . . . . . . 4
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
RENEWAL PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . 4
APPROVALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
SEQUENCE OF OPERATION. . . . . . . . . . . . . . . . . 17
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
TYPICAL WIRING DIAGRAM NOTES . . . . . . . . . . 37
NOTES, CAUTIONS AND WARNINGS
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 damage may result if
installation procedure is not handled properly.
INSTALLATION
MANUAL
CAUTION: READ ALL SAFETY GUIDES BEFORE YOU
BEGIN TO INSTALL YOUR UNIT.
SAVE THIS MANUAL
AFFINITY™ SERIES
SINGLE PACKAGED GAS/ELECTRIC
AIR COOLED AIR CONDITIONERS
2, 2-1/2, 3, 3-1/2, 4 AND 5 NOMINAL TON
DNP024, 030, 036, 042, 048 & 060
280241-YIM-D-0909

York Affinity DNP048 Specifications

General

Cooling Capacity (tons)	4
Refrigerant	R-410A
Phase	1
Compressor Type	Scroll
Frequency (Hz)	60
Type	Air Conditioner
Cooling Capacity	48000 BTU
Stages	Single
Voltage	208/230V

Summary

Important Safety Notices

Pre-Installation Safety Mandate

Instructs the installer to read all safety guides before starting the installation process.

Installation Safety Information

Installation Requirements

Installation Limitations and Codes

Unit Location Criteria

Gas Piping Installation

Flue Vent Hood Installation

Sequence of Operation

Heating Sequence Stages

Describes the unit's heating sequence, including ignition and safety checks.

Operational Delays and Burner Control

Sequence Fault Handling

Explains unit responses to faults, lockouts, and safety control activations.

Safety Control Functions

Limit Switch (LS)

Pressure Switch (PS)

Flame Sensing and Circuit Faults

Detects flame presence and monitors the flame sensing circuit for faults.

Rollout and Auxiliary Limits

Circulating Fan and Cooling Modes

Unit Start-Up Procedures

Guides for preparing and starting the unit, including safety checks and operating steps.

Gas Handling and Adjustment

Burner, Pilot, and Temperature Adjustments

Checking Natural Gas Input

Typical Wiring Diagram Notes