York CZH User Manual

835965-UIM-C-0814
R-410A
OUTDOOR SPLIT-SYSTEM
AIR CONDITIONING
MODELS: 18 SEER - CZH / AC8B / AL8B SERIES
MODELS: 16 SEER - CZF / AC6B / AL6B SERIES
2 TO 5 TONS
INSTALLATION MANUAL
®
TABLE OF CONTENTS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
UNIT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
EVACUATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
ELECTRICAL CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . 5
SYSTEM CHARGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
INSTRUCTING THE OWNER . . . . . . . . . . . . . . . . . . . . . . . 17
AC CONTROL BOARD FUNCTIONALITY . . . . . . . . . . . . . 18
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
START UP SHEET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
LIST OF FIGURES
Typical Installation with Required Clearances . . . . . . . . . . . . . . 3
Tubing Hanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Underground Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Heat Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Typical Field Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Communications Harness Connection . . . . . . . . . . . . . . . . . . . 6
Communicating AC with Communicating
Air Handler or Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Communicating AC with Non-Communicating Air Handler
or Furnace using Communicating Interface Control . . . . . . . . . . 7
Thermostat Wiring – Single Stage Air Conditioner
(with AC control) – PSC Air Handler . . . . . . . . . . . . . . . . . . . . . . . 8
Thermostat Wiring – Single Stage Air Conditioner
(with AC control) – VS Air Handler . . . . . . . . . . . . . . . . . . . . . . . 9
Thermostat Wiring – Single Stage Air Conditioner
(with AC control) – Modulating Furnace . . . . . . . . . . . . . . . . . . . 10
Thermostat Chart - Two Stage AC –
Two Stage Variable Speed Furnaces . . . . . . . . . . . . . . . . . . . 11
Thermostat Chart - Two Stage AC –
Two Stage Variable Speed Furnaces . . . . . . . . . . . . . . . . . . . 12
Thermostat Chart - Two Stage AC –
Variable Speed Furnaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Thermostat Chart - Two Stage AC –
Variable Speed Furnaces . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . 14
Thermostat Chart - Two Stage AC –
Variable Speed Furnaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Thermostat Chart - Two Stage AC –
Variable Speed Furnaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Single Stage Wiring Diagram (2 - 4 Ton) . . . . . . . . . . . . . . . . 22
Single Stage Wiring Diagram (5 Ton) . . . . . . . . . . . . . . . . . . . . 23
Two Stage Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
LIST OF TABLES
R-410A Saturation Properties . . . . . . . . . . . . . . . . . . . . . . . . 18
TEST Input Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Operational Mode Display . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Status Code Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Status Code Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Operational Fault Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Sensor or Switch Fault Codes . . . . . . . . . . . . . . . . . . . . . . . 20
Wiring Related Fault Codes . . . . . . . . . . . . . . . . . . . . . . . . . 20
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 the highest sales volume evaporator plus 15 feet of
field supplied lines.
Matching indoor coils require a thermal expansion valve. The refriger-
ant charge may need to be changed for some system combinations,
elevation differences, or total line lengths. See tabular data sheet pro-
vided in unit literature packet for charge requirements. Refer to Applica-
tion Data covering “General Piping Recommendations and Refrigerant
Line Length” (Part Number 247077).
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.

York CZH Specifications

General

Brand	York
Model	CZH
Category	Air Conditioner
Language	English

Summary

SECTION II: SAFETY

Safety Alerts and Signal Words

Important safety alerts, signal words (DANGER, WARNING, CAUTION), and their meanings.

SECTION III: UNIT INSTALLATION

Location and Site Preparation

Guidance on selecting and preparing the installation location for the outdoor unit.

PIPING CONNECTIONS

Line Installation Precautions

Important precautions to take when installing refrigerant lines.

Brazing Procedures and Safety

Safety and procedural guidelines for brazing refrigerant lines and service valves.

SECTION IV: EVACUATION

System Evacuation Procedure

Procedures for evacuating the system to the required vacuum level.

SECTION V: ELECTRICAL CONNECTIONS

General Wiring and Grounding

General guidelines for electrical connections and grounding.

Field Wiring Instructions

Instructions for power wiring and control wiring (serial/conventional).

SECTION VI: SYSTEM CHARGE

Subcooling Charging Method

System Charge Calculation

SECTION VIII: AC CONTROL BOARD FUNCTIONALITY

Operational Features and Diagnostics

Status and Fault Code Displays

Lockout Modes and Fault Handling

Cooling Operation and Switch Faults

SECTION IX: WIRING DIAGRAM

Single Stage Wiring Diagram (2-4 Ton)

Single Stage Wiring Diagram (5 Ton)

Two Stage Wiring Diagram

SECTION X: START UP SHEET

System Start-Up Procedure