Table of Contents
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INSTALLATION
MANUAL
CONTENTS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . 5
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
REFERENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
RENEWAL PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
APPROVALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
NOMENCLATURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
START-UP (COOLING) . . . . . . . . . . . . . . . . . . . . . . . . . 65
START-UP (GAS HEAT) . . . . . . . . . . . . . . . . . . . . . . . . 66
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . 73
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.
CAUTION:
READ ALL SAFETY GUIDES BEFORE YOU
BEGIN TO INSTALL YOUR UNIT.
SAVE THIS MANUAL
SINGLE PACKAGE AIR CONDITIONERS AND
SINGLE PACKAGE GAS/ELECTRIC UNITS
DL/DU -06, -07, -08, -10 and -12
6-1/2 TO 12-1/2 TON
(9.0 TO 11.5 EER)
Tested in accordance with:
167791-BIM-B-0606
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Table of Contents
Troubleshooting
Related Manuals for York DL-10
Summarization of Contents
General Information
Safety Considerations
Important safety guidelines and precautions for handling and installing the unit.
Inspection
Procedure for inspecting the unit for possible damage during transit.
Reference Documents
Approvals
Details of design certifications by CSA for unit installation and use.
Installation Procedures
Installation Safety Information
Critical safety instructions to be read before starting appliance installation.
Preceding Installation
Steps to take before proceeding with the unit installation.
Ductwork and Covers
Duct Covers
Information on covering and reusing duct panels for installation.
Wiring and Connections
Power Wiring Detail
Details for sizing power wiring, fuses, and disconnect switches.
Unit Options and Accessories
Electric Heat
Information on factory-installed or field-installed electric heaters.
Motorized Outdoor Damper
Details on factory or field installed motorized outdoor air dampers.
Economizer
Information on factory or field installed economizer options.
Economizer and Power Exhaust Adjustments
Minimum Position Adjustment
Procedure to adjust the minimum damper position for economizer operation.
Enthalpy Set Point Adjustment
How to set the enthalpy set point for economizer operation.
Blower and Motor Checks
Phasing
Checking and correcting compressor and blower motor rotation.
Air Balancing Procedures
Checking Air Quantity
Methods for measuring and verifying the unit's air quantity.
Unit Operation Sequences
Cooling Sequence of Operation
Detailed steps for cooling operation, including continuous and intermittent blower modes.
Cooling Operation Errors
Safety Controls
Unit control board monitoring of cooling system safety inputs.
Electric Heating Sequences
Two-stage heating
The sequence for two-stage electric heating operation.
Electric Heat Operation Errors
Temperature Limit
How the temperature limit affects electric heat operation.
Gas Heating Sequences
First Stage of Heating
The sequence for the first stage of gas heating ignition.
Gas Heating Operation Errors
Lock-out
Conditions that cause a one-hour lockout for gas heating.
Start-Up (Cooling)
Pre-start Check List
Checks to perform before starting the cooling system.
Start-Up (Gas Heat)
Pre-start Check List
Checks to perform before starting the gas heat system.
Gas Input Checks
Natural Gas Input
Procedure for checking gas input for natural gas units.
Troubleshooting Guide
DL/DU Flash Codes
Explanation of the flash codes used by the unit control board.
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