York PREDATOR MagnaDRY DR090 User Manual

INSTALLATION
MANUAL
CAUTION: READ ALL SAFETY GUIDES BEFORE YOU
BEGIN TO INSTALL YOUR UNIT.
SAVE THIS MANUAL
MagnaDRY™
SINGLE PACKAGE AIR CONDITIONERS AND
SINGLE PACKAGE GAS/ELECTRIC UNITS
DR090, 120 and 150
127878-YIM-C-1208
®
DR090 and 120
DR150
CONTENTS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . 5
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
REFERENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
RENEWAL PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
APPROVALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
NOMENCLATURE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
START-UP (COOLING) . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
START-UP (GAS HEAT) . . . . . . . . . . . . . . . . . . . . . . . . . . 58
TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
See following pages 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 damage may
result if installation procedure is not handled properly.
Tested in accordance with:

York PREDATOR MagnaDRY DR090 Specifications

General

Brand	York
Model	PREDATOR MagnaDRY DR090
Category	Air Conditioner
Language	English

Summary

NOTES, CAUTIONS AND WARNINGS

SAFETY CONSIDERATIONS

INSTALLATION

INSTALLATION SAFETY INFORMATION

Essential safety guidelines before installing the unit.

LOCATION

RIGGING AND HANDLING

CLEARANCES

DUCTWORK

THERMOSTAT WIRING

POWER AND CONTROL WIRING

POWER WIRING DETAIL

Detailed instructions for power wiring connections.

GAS PIPING

GAS CONNECTION

ECONOMIZER AND POWER EXHAUST SET POINT ADJUSTMENTS AND INFORMATION

MINIMUM POSITION ADJUSTMENT

ENTHALPY SET POINT ADJUSTMENT

POWER EXHAUST DAMPER SET POINT (WITH OR WITH-OUT POWER EXHAUST)

PHASING

BELT TENSION

CHECKING AIR QUANTITY

SUPPLY AIR DRIVE ADJUSTMENT

COOLING SEQUENCE OF OPERATION

ECONOMIZER WITH SINGLE ENTHALPY SENSOR

ECONOMIZER WITH DUAL ENTHALPY SENSORS

ECONOMIZER WITH POWER EXHAUST

COOLING OPERATION ERRORS

HIGH-PRESSURE LIMIT SWITCH

Operation and error handling for high-pressure limit switch.

LOW-PRESSURE LIMIT SWITCH

Operation and error handling for low-pressure limit switch.

FREEZESTAT

Operation and error handling for the freezestat.

LOW AMBIENT COOLING

COMPRESSOR PROTECTION

FLASH CODES

Description of flash codes for system errors.

REHEAT MODE SEQUENCE OF OPERATION

ELECTRIC HEATING SEQUENCE OF OPERATIONS

ELECTRIC HEAT OPERATION ERRORS

Troubleshooting electric heat operation errors.

GAS HEATING SEQUENCE OF OPERATIONS

IGNITION CONTROL BOARD

Function and operation of the ignition control board.

FIRST STAGE OF HEATING

Sequence for the first stage of gas heating operation.

SECOND STAGE OF HEATING

Sequence for the second stage of gas heating operation.

RETRY OPERATION

Procedure for retry operations in gas heating.

RECYCLE OPERATION

GAS HEATING OPERATION ERRORS

Troubleshooting gas heating operation errors.

FLAME SENSE

Process of flame sensing during gas heating.

GAS VALVE

SAFETY CONTROLS

Overview of safety controls for gas heating units.

START-UP (COOLING)

PRESTART CHECK LIST

START-UP (GAS HEAT)

PRE-START CHECK LIST

LIGHTING THE MAIN BURNERS

POST START CHECKLIST

MANIFOLD GAS PRESSURE ADJUSTMENT

CHECKING GAS INPUT

ADJUSTMENT OF TEMPERATURE RISE

BURNERS/ORIFICES INSPECTION/SERVICING

TROUBLESHOOTING

PREDATOR® FLASH CODES

Understanding and interpreting Predator flash codes.

UNIT CONTROL BOARD OPTION SETUP

OPTION BYTE SETUP

HEAT DELAY SETUP

COOLING TROUBLESHOOTING GUIDE

Supply Air Blower Motor Not Energizing (AUTO Mode)

Compressor #1 Not Energizing (AUTO Mode)

Compressor #2 Not Energizing (AUTO Mode)

GAS HEAT TROUBLESHOOTING GUIDE

Blower Motor Not Energizing After Heat Ignition

No Ignition or Spark

Erratic Main Burner Flame