Carrier FV4B User Manual

NOTE: Read the entire instruction manual before starting the installation.
This symbol → indicates a change since the last issue.
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock, or other conditions which may
cause 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 kits or accessories when installing.
Follow all safety codes. Wear safety glasses and work gloves. Use quenching cloth for brazing operations. Have fire extinguisher available. Read
these instructions thoroughly and follow all warnings or cautions attached to the unit. Consult local building codes and National Electrical Code
(NEC) for special requirements.
Recognize safety information. This is the safety-alert symbol
. When you see this symbol on the unit and in instructions manuals, be alert to
the potential for personal injury.
Understand the signal words DANGER, WARNING, CAUTION, and NOTE. 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
Fig. 1—Model FV4B
A98023
Installation Instructions
FV4B
Fan Coil for Puron® Refrigerant
002, 003, 005, 006
Form: IM-FV4B-02 Cancels: IM-FV4B-01 Printed in U.S.A. 6-03 Catalog No. 63FV-4B1

Carrier FV4B Specifications

General

Brand	Carrier
Model	FV4B
Category	Refrigerator
Language	English

Summary

SAFETY CONSIDERATIONS

Recognize Safety Information

Identifies the safety-alert symbol and its meaning for potential personal injury.

Understand Signal Words

Explains DANGER, WARNING, CAUTION, and NOTE for hazard identification.

PROCEDURE 4-ELECTRICAL CONNECTIONS

Line-Voltage Connections

Details for connecting line-voltage power leads and ground wire.

Critical Power Warning

Warning about live wires on the line side of the disconnect switch.

PROCEDURE 5-REFRIGERANT TUBING CONNECTION AND EVACUATION

Refrigerant Tubing Connection

PROCEDURE 8-EASY SELECT CONFIGURATION TAPS

ECM Motor Configuration

How to configure the ECM motor using Easy Select taps for airflows.

AUX HEAT KW/CFM Selection

Selecting the correct airflow for the auxiliary heat kW size installed.

AC/HP SIZE Selection

Selecting the correct outdoor unit size for the fan coil application.

SYSTEM TYPE Selection

Selecting the system type (AC or HP) for proper operation.

AC/HP CFM ADJUST Selection

Adjusting airflow for AC/HP systems to nominal, low, or high.

ON/OFF DELAY Selection

COMFORT OPTIONS

PROCEDURE 11-TROUBLESHOOTING ECM MOTOR AND CONTROLS

ECM Motor Troubleshooting

Warning and steps before servicing the ECM motor.

Troubleshooting

If motor turns slowly

If motor does not run

Steps to troubleshoot when the motor does not run.

Troubleshooting Details

Check Control Signals

Procedure to check low-voltage control signals to the motor.

Thermostat Wiring Check

How to check thermostat wiring for errors or defects.

Wiring Harness Check

Inspecting the wiring harness for loose or damaged connections.

Motor Winding Section Verification

CARE AND MAINTENANCE

General Safety Warning

Warning about disconnecting power and sharp metal edges during maintenance.

QUICK REFERENCE GUIDE

Set-Up Instructions for Warmer Heating and Super Humidity Control

PURON® QUICK REFERENCE GUIDE

Refrigerant Handling and Servicing