Johnson Controls York 20 Series - User Manual

R-410A
J15/20XP SERIES 20 W/SMART EQUIPMENT™
15/20 Ton
60 Hertz
5168275-JIM-I-1121
TABLE OF CONTENTS
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Rigging And Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Compressors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Power And Control Wiring. . . . . . . . . . . . . . . . . . . . . . . . . 14
Field Installed Electric Heat Accessories . . . . . . . . . . . . . 23
Options/Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Economizer Sequences . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Dry Bulb Changeover . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Single Enthalpy Changeover. . . . . . . . . . . . . . . . . . . . . . . 23
Dual Enthalpy Changeover . . . . . . . . . . . . . . . . . . . . . . . . 23
Auto. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Free Cooling Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Power Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Setpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Field Installed BAS-Ready Economizer Power Exhaust
Damper Set Point Adjustment. . . . . . . . . . . . . . . . . . . . . . 28
Air Balance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Sequence Of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Cooling Sequence Of Operation . . . . . . . . . . . . . . . . . . . . 36
Cooling Operation Errors . . . . . . . . . . . . . . . . . . . . . . . . 36
Electric Heating Sequence Of Operations. . . . . . . . . . . . . 37
Defrost Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Interval between Defrosts. . . . . . . . . . . . . . . . . . . . . . . . 38
Forced Defrost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Electric Heat Operation Errors . . . . . . . . . . . . . . . . . . . . 38
Start-Up (Cooling) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Charging The Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Normal Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Blower Shaft Bearing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Outdoor Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Start-Up Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
LIST OF TABLES
1 J15/20XP Unit Limitations . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 J15/20XP Unit Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 J15/20XP Unit Accessory Weights . . . . . . . . . . . . . . . . . . 9
4 J15/20XP Unit Clearances . . . . . . . . . . . . . . . . . . . . . . . 12
5 Control Wire Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6 Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7 J15/20XP Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . 21
8 Electric Heat Minimum Supply Air . . . . . . . . . . . . . . . . . . 23
9 Smart Equipment™ Economizer Board Details . . . . . . . 25
10 Altitude/Temperature Correction Factors . . . . . . . . . . . . 30
11 Air Flow Performance - Side Duct Application . . . . . . . . 32
12 Air Flow Performance - Bottom Duct Application . . . . . . 33
13 RPM Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
14 Indoor Blower Specifications . . . . . . . . . . . . . . . . . . . . . . 34
15 Power Exhaust Specifications . . . . . . . . . . . . . . . . . . . . . 34
16 Additional Static Resistance . . . . . . . . . . . . . . . . . . . . . . 35
17 Limit Control Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
18 Electric Heat Anticipator Setpoint . . . . . . . . . . . . . . . . . . 39
19 Smart Equipment™ UCB Details . . . . . . . . . . . . . . . . . . 42
20 Cable for FC Buses and SA Buses in Order of Preference . . 47
LIST OF FIGURES
1 J20XP Component Location . . . . . . . . . . . . . . . . . . . . . . 6
2 J20XP Unit 4 Point Load Weight . . . . . . . . . . . . . . . . . . . 8
3 J20XP Unit 6 Point Load Weight . . . . . . . . . . . . . . . . . . . 8
4 J15XP Unit 4 Point Load Weight . . . . . . . . . . . . . . . . . . . 8
5 J15XP Unit 6 Point Load Weight . . . . . . . . . . . . . . . . . . . 8
6 Center of Gravity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7 J20XP Unit Dimensions Front View . . . . . . . . . . . . . . . . . 9
8 J15XP Unit Dimensions Front View . . . . . . . . . . . . . . . . 10
9 J15/20XP Unit Dimensions Rear View . . . . . . . . . . . . . . 11
10 J15/20XP Unit Dimensions Rain Hood . . . . . . . . . . . . . 12
11 J15/20XP Roof Curb . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
12 Fixed Outdoor Air Damper . . . . . . . . . . . . . . . . . . . . . . . 13
13 Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
14 Field Wiring Disconnect - Heat Pump Unit With/Without
Electric Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
15 Typical Field Wiring 24 Volt Thermostat . . . . . . . . . . . . 16
16 SE-ECO1001-0 Economizer Controller . . . . . . . . . . . . . 25
17 Belt Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
18 Altitude/Temperature Correction Factors . . . . . . . . . . . . 30
19 Pressure Drop Across A Dry Indoor Coil Vs. Supply Air CFM
For All Unit Tonnages . . . . . . . . . . . . . . . . . . . . . . . . . . 34
20 J15XP (15 Ton) Charging Chart . . . . . . . . . . . . . . . . . . . 40
21 J20XP (20 Ton) Charging Chart . . . . . . . . . . . . . . . . . . . 40
22 Unit Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Johnson Controls York 20 Series Specifications

General

Brand	Johnson Controls
Model	York 20 Series
Category	Heating System
Language	English

Summary

General

Safety Considerations

General safety alerts and warnings regarding potential hazards.

Inspection

Unit inspection upon receipt and procedures for checking transit damage.

Reference

Renewal Parts

Information on obtaining authorized replacement parts for the unit.

Approvals

Details on CSA certification and approved installation configurations.

Nomenclature

Model Number Breakdown

Explanation of the Johnson Controls J15/20XP model number nomenclature.

Installation

Installation Safety Information

Key safety precautions and requirements for unit installation.

Limitations

Regulatory and installation constraints for the units, including codes.

Location

Clearances

Required space around the unit for proper operation and service access.

Rigging And Handling

Safe procedures for moving, lifting, and handling the unit.

Ductwork

Fixed Outdoor Air Intake Damper

Installation and adjustment procedures for the fixed outdoor air intake damper.

Condensate Drain

Requirements for plumbing the unit's condensate drain line.

Compressors

Filters

Information on filter types, installation, and maintenance requirements.

Power And Control Wiring

Guidelines and requirements for electrical wiring of the unit.

Thermostat Wiring

Space Sensor

Guidelines for installing and connecting a space sensor for temperature monitoring.

Field Installed Electric Heat Accessories

Electric Heat

Details on factory-installed electric heater options and their installation.

Economizer;Motorized Outdoor Damper Rain Hood

Installation of rain hoods for economizer and motorized damper components.

Power Exhaust;Barometric Relief Damper and Rain Hood

Installation of rain hoods for power exhaust and barometric relief dampers.

Economizer Sequences

Description of economizer operational modes and control logic.

Power Exhaust

Setpoints

Configuration parameters for power exhaust operation.

Inputs

Available inputs for controlling power exhaust functionality.

Outputs

Available outputs for controlling power exhaust functionality.

Operation

Details on how the power exhaust system functions and interacts with the economizer.

Economizer Board Details

Power Exhaust Damper Set Point

Setting the power exhaust damper based on building pressure requirements.

Indoor Air Quality - IAQ

Functionality of the IAQ sensor and its effect on airflow control.

Field Installed BAS-Ready Economizer Power Exhaust Damper Set Point Adjustment

Procedure for adjusting the economizer actuator's auxiliary switch.

Phasing

Blower Rotation

Checking and correcting the supply air blower rotation direction.

Belt Tension

Procedure for adjusting the blower belt tension for optimal performance.

CFM Static Pressure and Power-Altitude and Temperature Corrections

Adjusting performance data for altitude and temperature conditions.

Drive Selection

Example Supply Air Blower Performance

Sample data for selecting blower speed and drive based on performance.

Air Balance

Pressure Drop Across A Dry Coil vs Supply Air CFM

Graph for determining airflow from dry coil pressure drop.

Supply Air Drive Adjustment

Additional Static Resistance

Values for static pressure drop due to electric heat and economizer.

Sequence Of Operation

Cooling Sequence Of Operation

Step-by-step process for the unit's cooling mode operation.

Heating Sequence of Operation

Step-by-step process for the unit's heating mode operation.

Continuous Blower

How to operate the supply air blower continuously.

Intermittent Blower

How the blower operates with the thermostat in AUTO mode.

Cooling Operation Errors

Conditions triggering unit shutdowns or alarms during cooling.

Electric Heating Sequence Of Operations

With Electric Heat

Operation sequence when electric heat is enabled.

Without Electric Heat

Operation sequence when electric heat is not enabled.

Electric Heat Operation Errors

Temperature Limit

How the high-temperature limit affects unit operation.

Safety Controls

UCB monitoring of electric heat temperature limits and safety switches.

Temperature Limit Switch (TLS 1, 2)

Description and settings for the electric heat temperature limit switches.

Reset

Procedure to reset heating operation after a limit trip.

Electric Heat Anticipator Setpoints

Setting the anticipator for proper heat cycle control and temperature swing.

Start-Up (Cooling)

Prestart Check List

Steps to perform before turning on power for cooling startup.

Operating Instructions

Steps to follow after unit power-up during startup.

Post Start Check List

Checks to perform after the unit has been running.

Shut Down

Procedure for safely turning off the unit.

Charging The Unit

15-Ton Charging Chart

Graphical data for charging the 15-ton unit in cooling mode.

20-Ton Charging Chart

Graphical data for charging the 20-ton unit in cooling mode.

Maintenance

Normal Maintenance

Routine checks and cleaning for filters, motors, and blower drive.

Blower Shaft Bearing

Inspection and lubrication of blower shaft bearings.

Outdoor Coil

Cleaning procedures for the outdoor condenser coil.

Unit Control Board

Smart Equipment UCB Details

Details on Unit Control Board terminals, functions, and indicators.

Start-Up Sheet

START-UP CHECKLIST

A checklist for initial unit setup and verification procedures.

WARRANTY STATEMENT

Information on the manufacturer's warranty policy for new equipment.

EQUIPMENT STARTUP

Instructions for using LCD or MAP Gateway to complete the startup.

SAFETY WARNINGS

DESIGN APPLICATION INFORMATION

Data required from the specifying engineer for system setup.

REFERENCE

General Inspection

Checklist for overall unit condition, installation, and rigging.

Air Moving Inspection

Checks related to blower components, drive alignment, and belt tension.

Exhaust Inspection

Verification of exhaust system components and operation.

Economizer Inspection

Checks for proper economizer function, settings, and damper operation.

Reheat Mode

Settings for reheat operation functionality.

Operating Measurements - Air Flow

ELECTRICAL DATA

Table for recording electrical measurements of unit components.

OPERATING MEASUREMENTS - COOLING

REFRIGERANT SAFETIES

Checks for proper operation of refrigerant circuit safety switches.

OPERATING MEASUREMENTS - GAS HEATING

OPERATIONAL MEASUREMENTS - STAGING CONTROLS

FINAL - INSPECTION

Final checks before leaving the site, including setpoints and access panels.