Johnson Controls Unitary Products J10 Thru 20YD User Manual

R-410A
MODELS:
J07 Thru 25YC
J10 Thru 20YD
7.5 - 25 Ton
60 Hertz
430648-JIM-D-1010
TABLE OF CONTENTS
Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Renewal Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Agency Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Preceding Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Limitations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Rigging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Phasing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Electrical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Refrigerant Mains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Piping And Electrical Connections . . . . . . . . . . . . . . . . . . 21
Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Crankcase Heater. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Sequence of Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Cooling Sequence Of Operation . . . . . . . . . . . . . . . . . . . . 22
Unit Control Board Option Setup. . . . . . . . . . . . . . . . . . . . 26
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Typical Wiring Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . 32
LIST OF TABLES
1 J07 thru 25YC and J10 thru 20YD Physical Data . . . . . . 4
2 Unit Application Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Corner Weights & Center of Gravity . . . . . . . . . . . . . . . . 6
4 Minimum Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5 Electrical Data - Outdoor Unit - AC Without Powered
Convenience Outlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6 Electrical Data - Outdoor Unit - AC With Powered
Convenience Outlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7 J07YC, J10YC/YD, J12YC/YD Unit Height
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
8 J15YC/YD, J20YC/YD & J25YC Unit Height
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
9 Piping And Electrical Connection Sizes (Inches) . . . . . . 21
10 J07 thru 25YC Unit Control Board Flash Codes . . . . . . 24
11 J10 thru 20YD Unit Control Board Flash Codes . . . . . . 25
LIST OF FIGURES
1 Corner Weights & Center Of Gravity . . . . . . . . . . . . . . . . 6
2 Typical Rigging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3 Typical Field Wiring Diagram - J07NC Evaporator Unit
with J07YC Condenser Unit . . . . . . . . . . . . . . . . . . . . . . 13
4 Typical Field Wiring Diagram - J10 thru J20NC Evaporator
Unit with J10 thru J10YC Condenser Unit . . . . . . . . . . . 14
5 J10 thru J20NC Liquid Line Solenoid Wiring . . . . . . . . . 14
6 Typical Field Wiring Diagram - J10 thru J20ND Evaporator
Unit with J10 thru J20YD Condenser Unit . . . . . . . . . . . 15
7 Typical Field Wiring Diagram - Twin J10 thru J20NC
Evaporator Units with 4-Pipe Condenser Unit . . . . . . . . 16
8 J10 thru J20NC Liquid Line Solenoid Wiring . . . . . . . . . 16
9 Typical Field Wiring Diagram - Single 4-Pipe Evaporator
Unit with Twin Condenser Units . . . . . . . . . . . . . . . . . . . 17
10 Typical Field Wiring Diagram - Twin J07NC Evaporator
Units with J15YD Condenser Unit . . . . . . . . . . . . . . . . . 18
11 J07YC, J10YC/YD, J12YC/YD Unit Dimensions . . . . . . 19
12 J15YC/YD, J20YC/YD & J25YC Unit Dimensions and
Piping & Electrical Dimensions . . . . . . . . . . . . . . . . . . . 20
13 Fan Orientation Control Box End . . . . . . . . . . . . . . . . . . 24
14 Unit Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
15 J07YC Charging Chart . . . . . . . . . . . . . . . . . . . . . . . . . . 27
16 J10YC Charging Chart . . . . . . . . . . . . . . . . . . . . . . . . . . 27
17 J10YD Charging Chart . . . . . . . . . . . . . . . . . . . . . . . . . . 28
18 J12YC Charging Chart . . . . . . . . . . . . . . . . . . . . . . . . . . 28
19 J12YD Charging Chart . . . . . . . . . . . . . . . . . . . . . . . . . . 29
20 J15YC Charging Chart . . . . . . . . . . . . . . . . . . . . . . . . . . 29
21 J15YD Charging Chart . . . . . . . . . . . . . . . . . . . . . . . . . . 30
22 J20YC Charging Chart . . . . . . . . . . . . . . . . . . . . . . . . . . 30
23 J20YD Charging Chart . . . . . . . . . . . . . . . . . . . . . . . . . . 31
24 J25YC Charging Chart . . . . . . . . . . . . . . . . . . . . . . . . . . 31
25 Typical J07YC Condensing Unit Wiring Diagram . . . . . 32
26 Typical J10/12YC Condensing Unit Wiring Diagram . . . 33
27 Typical J10/12YD Condensing Unit Wiring Diagram . . . 34
28 Typical J15YC Condensing Unit Wiring Diagram . . . . . 35
29 Typical J15/20YD Condensing Unit Wiring Diagram . . . 36
30 Typical J20YC Condensing Unit Wiring Diagram . . . . . 37
31 Typical J25YC Condensing Unit Wiring Diagram . . . . . 38

Johnson Controls Unitary Products J10 Thru 20YD Specifications

General

Dimensions	Varies by model
Weight	Varies by model
Product Type	Air Conditioner
Refrigerant	R-410A
Voltage	208/230V or 460V
Phase	3

Summary

Nomenclature

Model Number Structure

Explains the components and meaning of the configured split condenser model number.

General Unit Information

Unit Description and Installation Overview

Describes the condensing units, their factory setup, and installation requirements.

Application Considerations and Warnings

Highlights system integration needs and risks of improper application.

Safety and Compliance

Installer Safety Warnings and Cautions

Emphasizes installer attention to warnings, notes, and cautions for safety.

Reference Documents and Agency Approvals

Lists related manuals, CSA certification, and renewal parts contact.

Unit Inspection Procedure

Instructs on inspecting the unit for transit damage and handling claims.

Physical Specifications

Table 1: Model Physical Data

Presents physical dimensions and specifications for various models.

Unit Application and Location

Table 2: Unit Application Data

Details voltage, ambient, and pressure parameters for unit application.

Installation and Location Guidelines

Covers preceding installation steps and location selection for units.

Rooftop and Ground Level Installation

Specifies requirements for rooftop and ground level installations.

Unit Weight and Center of Gravity

Table 3: Corner Weights and CG

Lists corner weights, center of gravity, and load locations for models.

Figure 1: Center of Gravity Diagram

Illustrates the center of gravity and weight distribution points.

Clearances and Rigging

Table 4: Minimum Clearance Requirements

Specifies minimum required clearances for unit operation and servicing.

Safe Unit Rigging Procedures

Provides instructions for safely moving and lifting the unit.

Electrical Wiring Considerations

Power and Control Wiring

Details power supply checks, wiring, and low voltage control wire routing.

Compressor and Phasing Notes

Covers compressor specifications, R-410A, POE oil, and phasing checks.

Electrical Data - No Convenience Outlet

Table 5: Unit Electrical Data

Lists electrical specifications for units without a convenience outlet.

Electrical Data - With Convenience Outlet

Table 6: Unit Electrical Data

Lists electrical specifications for units with a convenience outlet.

Refrigerant System Installation

Application and System Considerations

Highlights split-system application needs and potential issues.

Refrigerant Line Sizing Guidelines

Details factors for sizing suction and liquid refrigerant lines.

Refrigerant Piping Best Practices

Covers tube support, brazing, insulation, and leak testing.

Refrigerant System Preparation

Nitrogen Flow and Leak Testing

Details nitrogen flow, leak testing, evacuation, and charging.

Typical Field Wiring Diagrams

Figure 3: J07NC Evaporator with J07YC Condenser

Shows typical wiring for a specific evaporator/condenser combination.

Typical Field Wiring Diagrams

Figure 4: J10-J20NC Evaporator with J10-J10YC Condenser

Illustrates wiring for a J10-J20NC evaporator with a J10-J10YC condenser.

Figure 5: J10-J20NC Liquid Line Solenoid Wiring

Details the wiring for the liquid line solenoid valve.

Typical Field Wiring Diagrams

Figure 6: J10-J20ND Evaporator with J10-J20YD Condenser

Shows wiring for a J10-J20ND evaporator with a J10-J20YD condenser.

Typical Field Wiring Diagrams

Figure 7: Twin J10-J20NC Evaporators with 4-Pipe Condenser

Illustrates wiring for twin evaporator units with a 4-pipe condenser.

Figure 8: J10-J20NC Liquid Line Solenoid Wiring

Details wiring for the J10-J20NC liquid line solenoid.

Typical Field Wiring Diagrams

Figure 9: Single 4-Pipe Evaporator with Twin Condensers

Shows wiring for a single evaporator with twin condenser units.

Typical Field Wiring Diagrams

Figure 10: Twin J07NC Evaporators with J15YD Condenser

Illustrates wiring for twin J07NC evaporators with a J15YD condenser.

Unit Dimensions

Figure 11: J07YC, J10YC/YD, J12YC/YD Dimensions

Provides dimensional drawings for specific models.

Table 7: Unit Height Dimensions

Lists height dimensions for J07YC, J10YC/YD, J12YC/YD models.

Unit Dimensions and Piping Details

Figure 12: J15YC/YD, J20YC/YD & J25YC Dimensions

Shows dimensional drawings and piping/electrical details.

Piping, Electrical Connections, and Start-Up

Table 8 & 9: Connection Sizes and Types

Details connection sizes, types, and height dimensions.

Installation Connection Procedures

Explains connection locations and routing for piping and wiring.

Start-Up Procedures and Checks

Covers crankcase heat, pre-start checks, and initial start-up.

Unit Operation and Controls

Unit Control Overview and Safety

Introduces controls, safety features, and compressor protection.

Sequence of Operation: Blower

Describes continuous and intermittent blower operation modes.

Cooling Sequence: Single Stage

Details the cooling operation sequence for single-stage units.

Unit Operation Modes

Cooling Sequence: Dual Stage

Explains cooling sequence for dual-stage units.

Low Ambient Cooling Operation

Discusses low ambient switches and electronic controllers for cold weather.

Control Board Diagnostics

Figure 13: Fan Orientation Diagram

Shows fan orientation relative to the control box.

Table 10: J07-25YC Control Board Flash Codes

Lists flash codes for unit control board errors on specific models.

Control Board Information

Table 11: J10-20YD Control Board Flash Codes

Lists flash codes for unit control board errors on other models.

Figure 14: Unit Control Board Layout

Illustrates the physical layout of the unit control board.

Control Board Alarms and Setup

Alarm Codes and History

Explains LED indicators, alarm history, and ASCD reset.

Unit Control Board Option Setup

Step-by-step guide to configuring unit options via the control board.

Maintenance and Troubleshooting

Routine Maintenance Procedures

Outlines periodic maintenance like filter changes and coil cleaning.

Troubleshooting Safety Precautions

Warns about electrical hazards when troubleshooting components.

Refrigerant Charging Curves

Figure 15: J07YC Charging Chart

Provides charging curves for the J07YC model.

Figure 16: J10YC Charging Chart

Displays charging curves for the J10YC model.

Refrigerant Charging Curves

Figure 17: J10YD Charging Chart

Shows charging curves for the J10YD model.

Figure 18: J12YC Charging Chart

Provides charging curves for the J12YC model.

Refrigerant Charging Curves

Figure 19: J12YD Charging Chart

Displays charging curves for the J12YD model.

Figure 20: J15YC Charging Chart

Provides charging curves for the J15YC model.

Refrigerant Charging Curves

Figure 21: J15YD Charging Chart

Shows charging curves for the J15YD model.

Figure 22: J20YC Charging Chart

Displays charging curves for the J20YC model.

Refrigerant Charging Curves

Figure 23: J20YD Charging Chart

Provides charging curves for the J20YD model.

Figure 24: J25YC Charging Chart

Displays charging curves for the J25YC model.

Typical Condensing Unit Wiring Diagrams

Figure 25: J07YC Wiring Diagram

Illustrates the wiring diagram for a J07YC condensing unit.

Typical Condensing Unit Wiring Diagrams

Figure 26: J10/12YC Wiring Diagram

Shows the wiring diagram for J10/12YC condensing units.

Typical Condensing Unit Wiring Diagrams

Figure 27: J10/12YD Wiring Diagram

Illustrates the wiring diagram for J10/12YD condensing units.

Typical Condensing Unit Wiring Diagrams

Figure 28: J15YC Wiring Diagram

Shows the wiring diagram for a J15YC condensing unit.

Typical Condensing Unit Wiring Diagrams

Figure 29: J15/20YD Wiring Diagram

Illustrates the wiring diagram for J15/20YD condensing units.

Typical Condensing Unit Wiring Diagrams

Figure 30: J20YC Wiring Diagram

Shows the wiring diagram for a J20YC condensing unit.

Typical Condensing Unit Wiring Diagrams

Figure 31: J25YC Wiring Diagram

Illustrates the wiring diagram for a J25YC condensing unit.