York DC-090 User Manual

R-407C NO CHARGE
DC SERIES
7-1/2 - 12-1/2 Ton
50 Hertz
5120410-XIM-B-0216
TABLE OF CONTENTS
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Preceding Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Rigging And Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Side Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Compressors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Power And Control Wiring. . . . . . . . . . . . . . . . . . . . . . . . . 18
Optional Electric Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Optional Gas Heat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Gas Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Options/Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Optional Hot Gas Bypass (HGBP) . . . . . . . . . . . . . . . . . . 27
Economizer Sequences . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Dry Bulb Changeover . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Single Enthalpy Changeover. . . . . . . . . . . . . . . . . . . . . . . 27
Dual Enthalpy Changeover . . . . . . . . . . . . . . . . . . . . . . . . 27
Auto. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Free Cooling Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Power Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Air Balance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Checking Air Quantity . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Sequence Of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Cooling Sequence Of Operation . . . . . . . . . . . . . . . . . . . . 48
No Outdoor Air Options . . . . . . . . . . . . . . . . . . . . . . . . . 48
Cooling Operation Errors . . . . . . . . . . . . . . . . . . . . . . . . 49
Electric Heating Sequence Of Operations . . . . . . . . . . . . 50
Electric Heat Operation Errors . . . . . . . . . . . . . . . . . . . . 50
Gas Heating Sequence Of Operations . . . . . . . . . . . . . . . 51
Ignition Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Gas Heating Operation Errors . . . . . . . . . . . . . . . . . . . . 51
Start-Up (Cooling) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Start-Up (Gas Heat) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Checking Gas Heat Input . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Charging The Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Simplicity™ SE (Smart Equipment) Firmware Version 3.
Basic Unit Control Board Navigation Examples: . . . . . . . . 57
Start-Up Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
A

York DC-090 Specifications

General

Brand	York
Model	DC-090
Category	Air Conditioner
Language	English

Summary

General

Safety Considerations

Alerts and guidelines for safe handling and operation of the unit.

Installation

Installation Safety Information

Critical safety precautions and instructions for unit installation.

Preceding Installation Steps

Actions required before setting the unit in its final installation position.

Rigging And Handling

Ductwork and Roof Curbs

Ductwork Design and Covers

Guidelines for ductwork design, sizing, and use of duct covers.

Compressors and Filters

Compressor Specifications

Details on compressor type and compatibility with refrigerant.

Filter Requirements

Power And Control Wiring

Wiring Safety Precautions

Safety warnings related to electrical wiring, grounding, and disconnects.

Power Wiring Details

Information on sizing power wiring, fuses, and disconnect switches.

Thermostat Wiring

Typical Thermostat Wiring Diagram

Illustration of typical connections between thermostat and unit.

Electrical Data

Physical Data

Refrigerant Charge and Compressors

Information on refrigerant charge and compressor types.

Air Filter Specifications

Optional Gas Heat

Gas Piping and Airflow Requirements

Guidelines for gas piping and minimum supply air for gas heat.

Ventilation and Accessories

Vent and Combustion Air

Smoke Detectors

Information on the function and installation of smoke detectors.

Economizer Operation

Free Cooling Modes

Explanation of dry bulb, single enthalpy, and dual enthalpy free cooling modes.

Free Cooling Operation

Thermostat and Sensor Control

Simplicity SE Economizer Board Details

Indoor Air Quality (AQ)

Phasing and Blower Rotation

Air Balance and Checking Air Quantity

Air Balance Procedures

Steps for balancing air distribution in the duct system.

Checking Air Quantity Methods

Two methods for measuring system airflow quantity.

Supply Air Drive Adjustment

Sequence Of Operation

Cooling Sequence of Operation

Detailed steps for the unit's cooling operation sequence.

Economizer Operation Modes

Cooling Operation Errors

Description of errors and safeties during cooling operation.

Electric Heat Operation

Electric Heating Sequence

Sequence of operation for electric heating stages.

Electric Heat Operation Errors

Errors and safeties related to electric heat operation.

Limit Switch and Anticipator Settings

Gas Heating Sequence of Operations

Ignition Control Board Functionality

Gas Heating Operation Errors

Description of errors and safeties during gas heating operation.

Gas Heat Safety Controls

Limit Switches and Settings

Details on gas heat limit switches and their settings.

Pressure and Rollout Switches

Function of pressure and rollout switches in gas heat safety.

Microprocessor Failure and Flash Codes

Gas Heat Anticipator Setpoints

Start-Up Procedures

Start-Up (Cooling)

Pre-start checks, operating instructions, and post-start checks for cooling.

Start-Up (Gas Heat)

Pre-start checks, operating instructions, and shut down for gas heat.

Manifold Gas Pressure Adjustment

Charging The Unit

Simplicity SE Control Navigation

Understanding the Local LCD

Simplicity SE UCB Details

UCB Refrigerant Safety Switch Connections

Start-Up Sheet

Start-Up & Service Data Instruction

Form for recording start-up and service data.

Warranty Statement

Equipment Start-Up Procedure

Steps for completing the equipment start-up process.

Safety Warnings

Lethal Voltages Warning

Warning about the presence of lethal voltages during start-up.

Moving Parts Warning

Warning about potential exposure to moving parts during start-up.

Design Application Information

Operating Measurements - Air Flow

Electrical Data Recording

Form for recording electrical data measurements.

Operating Measurements - Cooling

Refrigerant Safeties

Compressor Rotation Verification

Pressure Safety Verification

Verification of high and low pressure safety switches.

Operating Measurements - Gas Heating

Gas Leak and Safety Checks

Manifold and Gas Pressure Measurements

Measurement of manifold and supply gas pressures.

Temperature Rise Measurement

Operational Measurements - Staging Controls

Heating/Cooling Staging Verification

Verification of proper heating and cooling staging.

Variable Frequency Drive Operation

Final Inspection and Checks

Control Set Point Verification

Ensuring all control set points are correctly configured.

Option Parameter Verification

Confirming all installed options are enabled in software.

Access Panel Security

Ensuring all access panels are closed and secured.