York YXV series - User Manual

Johnson Controls Unitary Products 5284792-UIM-A-0317
R-410A VARIABLE CAPACITY
OUTDOOR SPLIT-SYSTEM
AIR CONDITIONING
MODELS: 20 SEER
YXV, AC21, AL21 SERIES
2 – 5 TONS – 1 PHASE
INSTALLATION MANUAL
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LIST OF SECTIONS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
UNIT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
EVACUATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
ELECTRICAL CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
SYSTEM CHARGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
SYSTEM OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
OUTDOOR SCREEN OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . 11
INSTRUCTING THE OWNER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
START UP SHEET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
LIST OF FIGURES
Typical Installation Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Alternative Installation Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Installation of Vapor Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Underground Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Heat Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Outdoor Unit Control Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Typical Communicating Field Wiring (Air Handler / Furnace) . . . . . . .7
Demand Response Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
System Charging Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Main Outdoor Control and Display . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Outdoor Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2 Ton Inverter Drive LED Location . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3 & 4 Ton Inverter Drive LED Location . . . . . . . . . . . . . . . . . . . . . . . 16
5 Ton Inverter Drive LED Location . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Wiring Diagram - 2 Ton . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Wiring Diagram - 3-5 Ton . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
LIST OF TABLES
Minimum / Maximum Operating Limit Conditions . . . . . . . . . . . . . . . . .2
Allowable Vertical Linesets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
TEST Mode Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Same Priority Fault Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Status Code Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Outdoor Display Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Outdoor Control Faults/Status Code Display . . . . . . . . . . . . . . . . . . 13
Inverter Drive Fault/Status Code Display . . . . . . . . . . . . . . . . . . . . . 15
Troubleshooting – Fault and Protection Table . . . . . . . . . . . . . . . . . 18
Sensor Connector Pin Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Low Suction Pressure Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
SECTION I: GENERAL
The outdoor units are designed to be connected to a matching indoor
coil with sweat connect lines. Sweat connect units are factory charged
with refrigerant for a nominal sized matching indoor coil plus 15 feet of
field-supplied lines.
SECTION II: SAFETY
This is a safety alert symbol. When you see this symbol on
labels or in manuals, be alert to the potential for personal
injury.
Understand and pay particular attention to the signal words DANGER,
WARNING, or CAUTION.
DANGER indicates an imminently hazardous situation, which, if not
avoided,
will result in death or serious injury.
WARNING indicates a potentially hazardous situation, which, if not
avoided, could result in death or serious injury.
CAUTION indicates a potentially hazardous situation, which, if not
avoided
may result in minor or moderate injury. It is also used to
alert against unsafe practices and hazards involving only property dam-
age.
CAUTION
The EEV is factory installed but shipped in the closed position.
Prior to any brazing, power must be applied to the Indoor Unit. If
installing a coil furnace match or multi-piece air handler system,
the EEV harness must be plugged into the Comm port prior to
applying power to the indoor unit. Allow
1 minute for the EEV to
open to allow proper nitrogen flow through the coil and lineset.
!
WARNING
Improper installation may create a condition where the operation of
the product could cause personal injury or property damage.
Improper installation, adjustment, alteration, service or mainte-
nance can cause injury or property damage. Refer to this manual
for assistance or for additional information, consult a qualified con-
tractor, installer or service agency.
CAUTION
This product must be installed in strict compliance with the
enclosed installation instructions and any applicable local, state,
and national codes including, but not limited to building, electrical,
and mechanical codes.
!
!

Summary

General Information

Safety Guidelines

Unit Installation

Location and Reduced Capacity Conditions

Discusses unit placement location and conditions that reduce system capacity.

Installation Clearances

Illustrates typical and alternative clearance requirements for outdoor unit placement.

Installation Types and Considerations

Covers add-on replacement, ground, roof, wall mounting, and general unit placement.

Line Installation and Brazing Precautions

Provides guidance on installing refrigerant lines and safe brazing procedures.

Evacuation Procedure

Electrical Connections

General Information and Grounding

Covers general electrical installation, grounding, and wiring requirements.

Field Wiring Diagrams and Connections

Details power and control wiring connections with diagrams for outdoor unit and field wiring.

System Charge

Charging the Unit and Connections

Details how to charge the unit, including factory charge and system charging connections.

System Charge Determination and Verification

Explains how to determine total charge and verify it using the outdoor display.

System Operation

System Operation and Protection Features

Explains system operation features like anti-short-cycle delay, low voltage detection, and test mode.

Fault and Status Code Behavior

Describes how the control stores and displays fault and status codes for troubleshooting.

Outdoor Screen Operation

Outdoor Display and Operation

Details how the outdoor display shows system values and operates during calls.

Outdoor Display Menu Structure

Outlines the menu structure and navigation options available on the outdoor display.

Instructing the Owner

Owner Instruction and Maintenance

Guides on warranty registration, system operation, and maintenance recommendations.

Wiring Diagrams

Wiring Diagram Legend, Safety, and VS Control

Explains wiring symbols, safety precautions, and VS control diagnostic codes.

Wiring Diagrams for 2-Ton and 3-5 Ton Units

Provides detailed wiring diagrams for 2-ton and 3-5 ton models, illustrating component connections.

Start Up Sheet

Start-Up Sheet Sections Overview

Outlines the different sections of the start-up sheet for recording installation and system data.

Job Site, Unit Testing, and Owner Education

Covers job site cleanup, unit operation tests, owner education, and setup information.

York YXV series Specifications

General

Brand	York
Model	YXV series
Category	Air Conditioner
Language	English