York DM090 installation manual General, Safety Considerations, Inspection, Reference, Approvals

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035-17311-003-A-0704

GENERAL

YORKPredator® units are single package air conditioners designed for outdoor installation on a rooftop or slab and for non-residential use. These units can be equipped with factory or field installed electric heaters for heating applications.

These units are completely assembled on rigid, permanently attached base rails. All piping, refrigerant charge, and electri- cal wiring is factory installed and tested. The units require electric power and duct connections. The electric heaters have nickel-chrome elements and utilize single-point power connection.

SAFETY CONSIDERATIONS

Due to system pressure, moving parts, and electrical compo- nents, installation and servicing of air conditioning equipment can be hazardous. Only qualified, trained service personnel should install, repair, or service this equipment. Untrained personnel can perform basic maintenance functions of clean- ing coils and filters and replacing filters.

Observe all precautions in the literature, labels, and tags accompanying the equipment whenever working on air condi- tioning equipment. Be sure to follow all other applicable safety precautions and codes.

Wear safety glasses and work gloves. Use quenching cloth and have a fire extinguisher available during brazing opera- tions.

INSPECTION

As soon as a unit is received, it should be inspected for possi- ble damage during transit. If damage is evident, the extent of the damage should be noted on the carrier’s freight bill. A separate request for inspection by the carrier’s agent should be made in writing.

This furnace is not to be used for temporary heating of buildings or structures under construction.

Before performing service or maintenance opera- tions on unit, turn off main power switch to unit. Elec- trical shock could cause personal injury. Improper installation, adjustment, alteration, service or main- tenance can cause injury or property damage. Refer to this manual. For assistance or additional informa- tion consult a qualified installer, service agency.

REFERENCE

Additional information is available in the following reference forms:

General Installation - DM090 - 150, 035-17311-002

Pre-start & Post-start Check List - 035-18466-000

Economizer Accessory -

Downflow Factory Installed, 035-18286-000

Downflow Field Installed, 035-18285-000

Horizontal Field Installed, 035-18287-000

Motorized Outdoor Air Damper 035-18283-000

Manual Outdoor Air Damper (0-100%) 035-18282-000

Manual Outdoor Air Damper (0-35%) 035-18281-000

Electric Heater Accessory 035-17291-001

Unit Renewal Parts List 035-17288-000

APPROVALS

Design certified by CSA as follows:

1.For use as a cooling only unit, cooling unit with supple- mental electric heat or a forced air furnace.

2.For outdoor installation only.

3.For installation on combustible material and may be installed directly on combustible flooring or, in the U.S., on wood flooring or Class A, Class B or Class C roof cov- ering materials .

This product must be installed in strict compliance with the enclosed installation instructions and any applicable local, state, and national codes including, but not limited to, building, electrical, and mechanical codes.

Incorrect installation may create a condition where the operation of the product could cause personal injury or property damage.

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.

Unitary Products Group

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Contents Installation Manual Table of Contents List of Figures List of Tables General Safety ConsiderationsInspection ReferenceNomenclature ½ 12½ Ton Predator Model Number NomenclatureNOMENCLATURE, Additonal Options Johnson UNT Controller, DFS, APS & Phase Monitor Technicoat Condenser Coil, Phase Monitor, & Coil Guard Preceding Installation InstallationInstallation Safety Information Rigging and Handling Unit Temperature LimitationsLocation Length of Forks Must be a Minimum of 60 Inches Point Load WeightDetail C Detail B Detail aBottom Duct Openings from Above Duct Covers DuctworkSide Panels with Hole Plugs Condensate Drain Control Wire Sizes Thermostat WiringPower and Control Wiring Power Wiring DetailElectronic Thermostat Field Wiring RLA 380 11.5 75.0 Electrical Data DM120 10 TON with Power Convenience OutletMinimum Supply AIR CFM OPTIONS/ACCESSORIESPhysical Data Adjustments and Information Economizer and Power Exhaust SET PointEnthalpy SET Point Chart Blower Rotation PhasingSupply AIR Limitations Belt Tension1/2 TON Optional Motor Down Shot Blower PERFORMANCE* † 1/2 TON Standard Motor Down Shot Blower PERFORMANCE* †10 TON Optional Motor Down Shot Blower PERFORMANCE* † 10 TON Standard Motor Down Shot Blower PERFORMANCE* †12-1/2 TON Optional Motor Down Shot Blower PERFORMANCE* † 12-1/2 TON Standard Motor Down Shot Blower PERFORMANCE* †1/2 TON Optional Motor Side Shot Blower PERFORMANCE* † 1/2 TON Standard Motor Side Shot Blower PERFORMANCE* †10 TON Standard Motor Down Shot Blower PERFORMANCE* † 12-1/2 TON Optional Motor Side Shot Blower PERFORMANCE* † 12-1/2 TON Standard Motor Side Shot Blower PERFORMANCE* †AIR Balance Indoor Blower SpecificationsChecking AIR Quantity Method ONE Method TWODRY Coil Delta P Supply AIR Drive Adjustment Additional Static Resistance OperationMotor Sheave Datum Diameters Sequence of Operations OverviewCooling Sequence of Operation Compressor Protection Safety ControlsElectric Heat Limit Setting Electric Heating Operation ErrorsElectric Heating Sequence of Operations Electric Heat Antictpator SetpointsCharging the Unit START-UP Cooling12.5 TON Standard Efficiency Superheat Charging 10 TON Standard Efficiency Superheat ChargingPredator Flash Codes Normal Maintenance TroubleshootingGeneral Unit Control Board Flash Codes Basic Troubleshooting FlowchartCooling Troubleshooting Guide Unitary Products Group 035-17311-003-A-0704 Unitary 5005 Norman Products York Group Drive 73069