York DC SERIES 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 SERIES Specifications

General

Brand	York
Model	DC SERIES
Category	Air Conditioner
Language	English

Summary

General

Safety Considerations

Alerts and guidelines for safe operation and installation.

Installation

Installation Safety Information

Critical safety directives to follow before and during installation.

Limitations

Rigging And Handling

Procedures for safely lifting and moving the unit.

Power And Control Wiring

Thermostat Wiring

Economizer

Economizer Sequences

Control logic driving economizer operation.

Free Cooling

Conditions and methods for utilizing free cooling.

Sequence Of Operation

Cooling Sequence Of Operation

Step-by-step process for cooling mode activation.

Economizer With Single Enthalpy Sensor

Cooling Operation Errors

High-Pressure Limit Switch

Electric Heat Operation Errors

Limit Switch (Ls)

Gas Heating Sequence Of Operations

First Stage Of Heating

Gas Heating Operation Errors

Fault conditions and lockout procedures for the gas heating system.

Start-Up (Cooling)

Start-Up (Gas Heat)

Checking Gas Heat Input

Charging The Unit

SAFETY WARNINGS

OPERATING MEASUREMENTS - COOLING

REFRIGERANT SAFETIES

Checks for critical refrigerant circuit safety controls.