Table of Contents
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R-410A
ZX SERIES
6 - 12.5 Ton
60 Hertz
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Preceding Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Rigging And Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
ZXA7, 08-14 Unit Weights. . . . . . . . . . . . . . . . . . . . . . . . . . 8
Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Compressors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Power And Control Wiring. . . . . . . . . . . . . . . . . . . . . . . . . 17
Typical Field Power and Control Wiring . . . . . . . . . . . . . . . . 19
Typical Power Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Optional Gas Heat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Options/Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Blower Phasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Airflow Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Compressor Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
1 ZXA7, 08-14 Unit Limitations . . . . . . . . . . . . . . . . . . . . . . 7
2 ZXA7, 08-14 Corner Weights . . . . . . . . . . . . . . . . . . . . . . 8
3 ZXA7, 08-14 Unit Accessory Weights . . . . . . . . . . . . . . . . 9
4 ZXA7, 08-14 Unit Clearances . . . . . . . . . . . . . . . . . . . . . 14
7 Control Wire Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
8 Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
9 Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
10 Gas Pipe Sizing - Capacity of Pipe . . . . . . . . . . . . . . . . . 42
11 Gas Heat Supply Air . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
12 Supply Air Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
13 Altitude/Temperature Correction Factors . . . . . . . . . . . . 47
14 ZXA7, 08-14 Side Duct Application (Belt Drive) . . . . . . . 49
15 ZXA7, 08-14 Bottom Duct Application (Belt Drive) . . . . . 51
16 RPM Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
17 Indoor Blower Specifications . . . . . . . . . . . . . . . . . . . . . . 53
18 Motor Sheave Datum Diameters . . . . . . . . . . . . . . . . . . . 54
1 Unit shipping bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Protective condenser covering . . . . . . . . . . . . . . . . . . . . . 5
3 Supply air temperature sensor . . . . . . . . . . . . . . . . . . . . . 5
4 Factory-mounted return air temperature sensor . . . . . . . 6
5 Supply and return air ducts . . . . . . . . . . . . . . . . . . . . . . . 6
6 Return air smoke detector - shipped position . . . . . . . . . 6
7 Return air smoke detector - working position . . . . . . . . . . 6
8 Unit 4 Point Load Weight . . . . . . . . . . . . . . . . . . . . . . . . . 8
9 Unit 6 Point Load Weight . . . . . . . . . . . . . . . . . . . . . . . . . 8
10 Center of Gravity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
11 ZX08 Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . 11
12 ZX09/12 Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . 12
13 ZX14 Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . 13
14 1RC0456, 1RC0458 Roof Curb Dimensions . . . . . . . . . 14
15 1RC0457, 1RC0459 Roof Curb Dimensions . . . . . . . . . 15
TABLE OF CONTENTS
IntelliSpeed Supply Fan Control . . . . . . . . . . . . . . . . . . . . 62
Economizer Sequences . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Dry Bulb Changeover . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Single Enthalpy Changeover. . . . . . . . . . . . . . . . . . . . . . . 62
Dual Enthalpy Changeover . . . . . . . . . . . . . . . . . . . . . . . . 62
Auto. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Free Cooling Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Power Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Setpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Gas Heating Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Gas Heat Ignition Control Board Function . . . . . . . . . . . . . . 68
Start-Up (Cooling) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Start-Up (Gas Heat) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Checking Gas Heat Input . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Start-Up Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
LIST OF TABLES
19 Additional Static Resistance - ZX08-14 . . . . . . . . . . . . . 55
20 Additional Static Resistance - ZXA7 . . . . . . . . . . . . . . . . 55
21 Smart Equipment™ UCB Details . . . . . . . . . . . . . . . . . . 56
23 Smart Equipment™ Economizer Board Details . . . . . . . 64
24 Gas Rate Cubic Feet Per Hour . . . . . . . . . . . . . . . . . . . . 71
25 Gas Heat Stages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
27 ZXA7 Charging Table . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
28 ZX08 Charging Table System 1 . . . . . . . . . . . . . . . . . . . 77
29 ZX08 Charging Table System 2 . . . . . . . . . . . . . . . . . . . 77
30 ZX09 Charging Table System 1 . . . . . . . . . . . . . . . . . . . 78
31 ZX09 Charging Table System 2 . . . . . . . . . . . . . . . . . . . 78
32 ZX12 Charging Table System 1 . . . . . . . . . . . . . . . . . . . 79
33 ZX12 Charging Table System 2 . . . . . . . . . . . . . . . . . . . 79
34 ZX14 Charging Table System 1 . . . . . . . . . . . . . . . . . . . 80
35 ZX14 Charging Table System 2 . . . . . . . . . . . . . . . . . . . 80
LIST OF FIGURES
16 Side Duct Cover Panels . . . . . . . . . . . . . . . . . . . . . . . . . 16
19 Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
20 Typical Smart Equipment™ Control Wiring . . . . . . . . . . 19
21 Side Entry Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . 42
22 Flue Exhaust Hood Shipping Location . . . . . . . . . . . . . . 44
23 Flue Exhaust Hood Installed . . . . . . . . . . . . . . . . . . . . . 44
24 Belt Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
25 Altitude/Temperature Correction Factors . . . . . . . . . . . . 47
26 Unit Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
27 SE-ECO1001-1 Economizer Controller . . . . . . . . . . . . . 64
28 Ignition Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . 67
29 Typical Flame. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
30 6 Thru 12.5 Ton 3/4" Two Stage Gas Valve . . . . . . . . . 72
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Table of Contents
Related Manuals for York ZXG08
Summarization of Contents
Inspection and Reference
Unit Inspection Procedures
Procedure for inspecting the unit upon receipt for possible damage during transit.
Reference Information
Additional information available in listed reference forms and guides.
Installation Procedures
Installation Safety Information
Crucial safety instructions and precautions before starting unit installation.
Preceding Installation Steps
Steps to be completed before the main unit installation process.
Site Selection and Preparation
Unit Location Guidelines
Guidelines for selecting a suitable outdoor installation location for the unit.
Required Clearances
Necessary clearances for proper unit operation, servicing, and ventilation.
Rigging and Handling Procedures
Safe practices for rigging, moving, and handling the unit.
Unit Weights and Dimensions
ZXA7, 08-14 Unit Weights
Detailed weight information for ZXA7 and 08-14 models.
Unit Accessory Weights
Weight specifications for various unit accessories.
ZXA7 Unit Dimensions
Dimensional data for the ZXA7 model.
ZX08 Unit Dimensions
Dimensional data for the ZX08 model.
Unit Clearances and Roof Curb Information
Unit Clearances
Clearance requirements for ZXA7 and 08-14 models.
Roof Curb Model Compatibility
Unit models compatible with specific roof curb types.
Ductwork Installation
Duct Covers and Conversion
Instructions for applying duct covers and converting duct openings.
Component Installation and Wiring
Condensate Drain Setup
Guidance for installing the condensate drain piping.
Compressor and Filter Information
Details on compressors and filter requirements.
Power and Control Wiring
Requirements for field wiring power and control circuits.
Thermostat Wiring
Control Wire Sizing
Specifications for control wire size and maximum length.
Field Wiring Overview
Typical Power Wiring
Diagram illustrating typical field power wiring connections.
Physical Data Overview
ZXA7 Physical Data
Comprehensive physical and performance data for ZXA7 models.
ZX08 Physical Data
Comprehensive physical and performance data for ZX08 models.
ZX09 Physical Data
Comprehensive physical and performance data for ZX09 models.
ZX12 Physical Data
Comprehensive physical and performance data for ZX12 models.
Optional Gas Heat Features
Gas Piping Requirements
Guidelines for sizing and installing gas piping for optional heat.
Gas Connection Procedures
Steps for connecting the gas supply line to the unit.
Combustion Air and Flue Exhaust
Economizer Operation Modes
Details on economizer operation and available modes.
Power Exhaust System
Information on the power exhaust system and its installation.
Blower Phasing Check
Procedure to check and correct blower rotation phasing.
Blower Speed and Belt Adjustment
Blower Rotation Verification
Procedure to check and correct blower rotation direction.
Belt Tension Adjustment
Guidelines for adjusting belt tension for proper blower operation.
Altitude and Temperature Correction Factors
Correction Factor Data
Table and chart for altitude and temperature correction factors.
Drive and Airflow Performance Selection
Drive Selection Process
Steps for selecting the appropriate motor and drive components.
Supply Airflow Performance Data
Performance tables for supply air based on CFM and static pressure.
RPM and Blower Specification Tables
RPM Selection Guide
Table for selecting appropriate RPM based on model and airflow.
Indoor Blower Specifications
Detailed specifications for indoor blower components.
Supply Air Drive Adjustment
Motor Sheave Datum Diameters
Table for adjusting motor sheave datum diameters for airflow.
Control Board and Cable Information
UCB Terminal Details
Details on Unit Control Board terminals and functions.
Cable Selection Guide
Preferred cable types for FC and SA bus communication.
Unit Operation
Compressor Operation Details
Information on how compressors are controlled.
IntelliSpeed Supply Fan Control
Features and operation of the IntelliSpeed supply fan control.
Economizer Sequences
Description of economizer control sequences and free cooling options.
Operation Details and Accessories
Free Cooling Operation
When and how free cooling operates based on conditions.
Economizer Loading Parameters
Setpoint parameters for economizer loading.
Power Exhaust System Operation
How the power exhaust fan operates based on economizer output.
Economizer Board and Air Quality
Economizer Board Terminal Details
Details on the SE-ECO1001-1 economizer controller board terminals.
Indoor Air Quality (AQ) Input
Functionality of the indoor air quality sensor input.
Gas Heating Operation Sequence
Description of the heating stages and ignition control sequence.
Unit Start-Up Procedures
Start-Up Checklist (Cooling)
Pre-start checklist for cooling startup procedures.
Lighting Main Burners (Gas Heat)
Procedure for lighting the main burners during gas heat startup.
Gas Heat Input and Pressure Adjustment
Pre-Start Checklist (Gas Heat)
Pre-start checks required before initiating gas heat operation.
Manifold Gas Pressure Adjustment
Procedure for adjusting manifold gas pressure for proper operation.
Temperature Rise Adjustment and Burner Servicing
Temperature Rise Adjustment
How to adjust temperature rise for furnace operation.
Burner and Orifice Inspection
Procedures for inspecting and servicing burners and orifices.
Troubleshooting Gas Heat Ignition
Gas Heat Ignition Control Flash Codes
Table of flash codes and corrective actions for the ignition control board.
Refrigerant Charging Tables
ZXA7 Charging Data
Refrigerant charging specifications for ZXA7 models.
ZX08 Charging Data
Refrigerant charging specifications for ZX08 models.
ZX09 Charging Data
Refrigerant charging specifications for ZX09 models.
ZX12 Charging Data
Refrigerant charging specifications for ZX12 models.
Start-Up and Service Data Instruction
Start-Up Checklist
Checklist for initial equipment startup procedures.
Warranty Statement
Information regarding the manufacturer's warranty policy.
Equipment Startup Process
Guidelines for completing the equipment startup using local LCD or MAP Gateway.
Final Safety Warnings
Design Application Information
Information required from the specifying engineer for system design.
Reference Documentation
Pre-Installation Checks
Covers general inspection, air movement, exhaust, and economizer checks.
Operating Measurements and Safety
Cooling Measurements
Measurements related to cooling operation performance.
Refrigerant Safety Checks
Procedures for verifying refrigerant safety systems.
Gas Heating Measurements
Measurements related to gas heating operation performance.
Operational Controls and Final Inspection
Staging Control Verification
Verifying the proper operation of heating/cooling staging controls.
Final Inspection Checklist
Final checks for set points, options, access panels, and backup file.
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