Carrier 40KMC018-3 - User Manual

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Installation Instructions
40KMC, KMQ Unit
38HDF/QRF Unit
NOTE: Read the entire instruction manual before starting the
installation,
UNIT OPERATION AND SAFETY HAZARD
Failure to follow this warning could result in personal injury or
equipment damage.
Puron refrigerant systems operate at higher pressures than
standard R-22 systems. To avoid damage to the unit or
possible personal injury, do not use R-22 service equipment or
components on Puron refrigerant equipment.
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service, maintenance,
or use can cause explosion, fire, electrical shock, or other
conditions which may cause death, personal injury, or property
damage. Consult a qualified installer, service agency, or your
distributor or branch for information or assistance. The qualified
installer or agency must use factory-authorized kits or accessories
when modifying this product. Refer to the individual instructions
packaged with the kits or accessories when installing.
Follow all safety codes. Wear safety glasses, protective clothing,
and work gloves. Use quenching cloth for brazing operations.
Have fire extinguisher available. Read these instructions
thoroughly and follow all warnings or cautions included in
literature and attached to the unit. Consult local building codes and
current editions of the National Electrical Code ( NEC ) NFPA 70.
In Canada, refer to current editions of the Canadian electrical code
CSA 22.1.
Recognize safety information. This is the safety-alert symbol/k
When you see this symbol on the unit and in instructions or
manuals, be alert to the potential for personal injury. Understand
these signal words; DANGER, WARNING, and CAUTION. These
words are used with the safety-alert symbol. DANGER identifies
the most serious hazards which will result in severe personal injury
or death. WARNING signifies hazards which could result in
personal injury or death. CAUTION is used to identify unsafe
practices which would result in minor personal injury or product
and property damage. NOTE is used to highlight suggestions
which will result in enhanced installation, reliability, or operation.
ELECTRICALSHOCK HAZARD
Failure to follow this warning could result in personal
injury or death.
Before installing, modifying, or servicing system, main
electrical disconnect switch must be in the OFF
position. There may be more than 1 disconnect switch.
Lock out and tag switch with a suitable warning label.
PERSONAL INJURY AND EQUIPMENT DAMAGE
HAZARD
Failure to follow this caution may result in personal injury
and / or equipment damage.
DO NOT operate the unit without a filter or with grille
removed.

Summary

SAFETY CONSIDERATIONS

General Safety Precautions

General safety considerations and warnings for installation and operation.

Specific Hazard Warnings

Specific warnings for electrical shock, personal injury, and equipment damage.

INSTALLATION PLANNING AND INDOOR UNIT SETUP

Pre-installation Checks

Essential checks to perform before starting the installation process.

OUTDOOR UNIT MOUNTING PROCEDURES

OUTDOOR UNIT CONNECTIONS AND PIPING

Refrigerant Connection at Outdoor Unit

Detailed steps for connecting refrigerant lines to the outdoor unit.

POWER AND CONTROL WIRING

Outdoor Unit Wiring Connections

Instructions for connecting outdoor unit power and control wiring.

SYSTEM WIRING DIAGRAMS

40 KMC;38 HDF Cooling Only Wiring

Wiring diagram for cooling-only 40KMC/38HDF systems.

HEAT;COOL SYSTEM WIRING

40 KMQ;38 HDF Heat;Cool Wiring

Wiring diagram for 40KMQ/38HDF heat/cool systems with electric heaters.

HEAT PUMP SYSTEM WIRING

40 KMQ;38 QRF Heat Pump Wiring

INDOOR UNIT WIRING, PIPING, AND DRAIN

Install Indoor Unit Wiring, Piping, and Drain Hose

CONTROL WIRING AND MULTI-UNIT SETUP

Multiple Unit Control Wiring

UNIT CONFIGURATION AND ZONE MANAGEMENT

Unit Configuration

Remote Control Configuration

Zone Manager Installation

INSTALLATION OPTIONS

Fresh Air Intake and Adjacent Room Air Supply

START-UP AND SYSTEM EVACUATION

Preliminary Checks and Valve Status

Final checks of wiring, power, covers, and service valves before operation.

System Evacuation Methods

Procedures for evacuating the system using deep or triple evacuation methods.

UNIT OPERATION AND TESTING

Unit Start-up and Test Mode Operation

Procedures for starting the unit and operating in test mode.

SERVICE, MAINTENANCE, AND TROUBLESHOOTING

Routine Maintenance and Cleaning

Routine maintenance tasks for filters, coils, drain pan, and electrical connections.

Troubleshooting and Emergency Operation

Fault codes, troubleshooting guide, and emergency operation.

Carrier 40KMC018-3 Specifications

General

Brand	Carrier
Model	40KMC018-3
Category	Air Conditioner
Language	English