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Johnson Controls 18 SEER - CZH Installation Manual

Download Installation manual of Johnson Controls 18 SEER - AC8B Air Conditioner, Air conditioners for Free or View it Online on All-Guides.com. This version of Johnson Controls 18 SEER - AC8B Manual compatible with such list of devices, as: 18 SEER - AC8B, 18 Seer-AL8B Series, 18 Seer-CZH Series, AC8B Series, AL8B Series

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501562-UIM-A-0909

R-410A

OUTDOOR SPLIT-SYSTEM

AIR CONDITIONING

MODELS: 18 SEER - CZH / AC8B / AL8B SERIES

2 TO 5 TONS

INSTALLATION MANUAL

LISTED

ISO 9001

Certified Quality

Management System

TABLE OF CONTENTS

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

UNIT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

TXV INSTALLATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

ELECTRICAL CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

EVACUATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

SYSTEM CHARGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Instructing the Owner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

LIST OF FIGURES

Typical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Tubing Hanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Underground Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Heat Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Typical Field Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Communications Harness Connection . . . . . . . . . . . . . . . . . . . . . . . . . 6

CFM Selection Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Communicating AC with Communicating Air Handler or Furnace . . . . 7

Communicating AC with Non-Communicating Air Handler

or Furnace using Communicating Interface Control . . . . . . . . . . . . . . . 7

Thermostat Chart - Two Stage AC –

Two Stage Variable Speed Furnaces . . . . . . . . . . . . . . . . . . . . . . . . . .8

Thermostat Chart - Two Stage AC –

Two Stage Variable Speed Furnaces . . . . . . . . . . . . . . . . . . . . . . . . . .9

Thermostat Chart - Two Stage AC – Variable Speed Furnaces . . . . .10

Thermostat Chart - Two Stage AC – Variable Speed Furnaces . . . . .11

Thermostat Chart - Two Stage AC – Variable Speed Furnaces . . . . .12

Thermostat Chart - Two Stage AC – Variable Speed Furnaces . . . . .13

Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

LIST OF TABLES

R-410A Saturation Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

TEST Input Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Operational Mode Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Status Code Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Status Code Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Operational Fault Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

Sensor or Switch Fault Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

Wiring Related Fault Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

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 smallest rated indoor coil plus 15 feet of field

supplied lines.

Matching indoor coils are available with a thermal expansion valve or

an orifice liquid feed sized for the most common usage. The orifice size

and/or refrigerant charge may need to be changed for some system

combinations, elevation differences, or total line lengths. See Tabular

Data Sheet provided in unit literature packet for charge requirements.

Refer to Application Data covering “General Piping Recommendations

and Refrigerant Line Length” (Part Number 036-61920-001).

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.

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.

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.

R-410A systems operate at higher pressures than R-22 systems.

Do not use R-22 service equipment or components on R-410A

equipment. Service equipment

Must Be Rated for R-410A.