Carrier PF5M Installation Instructions Manual

PF5M
Fan Coil Units for R-454B Refrigerant
Sizes 18 to 60
NOTE: Read these entire instructions before starting the installation.

Table of Contents

Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Heater Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Check Equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Mount Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Upflow Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Downflow Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Horizontal Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Air Ducts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Ductwork Acoustical Treatment . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Line Voltage Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
24V Control System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Manufactured Housing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Ground Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Minimum CFM and Motor Speed Selection . . . . . . . . . . . . . . . . . 8
Table 1 - Fan Speed Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Refrigerant Tubing Connection and Evacuation . . . . . . . . . . . . . . . . 9
Mechanical Line Set Connections . . . . . . . . . . . . . . . . . . . . . . . . . 9
Refrigerant Flow-Control Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Condensate Drains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Leak Dissipation System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Leak Dissipation System Self-Test . . . . . . . . . . . . . . . . . . . . . . . 11
Table 2 - Dissipation Board Test Button Functions . . . . . . . . . . 11
Table 3 - Required Operational Checks to Ensure Proper Dissipation
System Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 4 - Required Minimum Dissipation Mode Airflows,
based on Total System Refrigerant Charge Quantity. . . . . . . . . . 12
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 5 - Flash Code Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Humidifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Continuous Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Cooling Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Heat Pump Heating with Auxiliary Electric Heat . . . . . . . . . . . . 13
Electric Heat or Emergency Heat Mode . . . . . . . . . . . . . . . . . . . 13
Leak Dissipation Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Start-up Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 6 - Charge Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Care and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 7 - Electric Heater Static Pressure Drop (in. wc) . . . . . . . 14
Table 8 - Airflow Performance (CFM) Wet . . . . . . . . . . . . . . . . 15
Table 9 - Airflow Performance (CFM) Dry . . . . . . . . . . . . . . . . 16

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
Installation Instructions
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, protective clothing and
work gloves. Have a 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 the current editions
of the National Electrical Code (NEC) NFPA 70.
In Canada, refer to the current editions of the Canadian Electrical Code
CSA C22.1.
Recognize safety information. This is the safety-alert symbol
you see this symbol on the unit and in instruction manuals, be alert to the
potential for personal injury.
Understand the 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
may 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.
WARNING
!
PROPERTY OR PERSONAL INJURY
HAZARD
Risk of fire. Flammable refrigerant used.
To be repaired only by trained service personnel. Do
not puncture refrigerant tubing.
Auxiliary devices which may be ignition sources shall
not be installed in the ductwork, other than auxiliary devices listed for
use with the specific appliance. See instructions.
Dispose of refrigerant properly in accordance with federal or local
regulations.
Failure to follow proper R-454B mitigation system installation
instructions can result in property damage, personal injury, or death. If
any fault codes are listed, please troubleshoot to prevent system
malfunction.
WARNING
!
PERSONAL INJURY / PROPERTY DAMAGE HAZARD
Failure to follow this warning could result in property damage, personal
injury, or death.
For continued performance, reliability, and safety, the only approved
accessories and replacement parts are those specified by the equipment
manufacturer. The use of non-manufacturer approved parts and
accessories could invalidate the equipment limited warranty and result
in fire risk, equipment malfunction, and failure. Please review
manufacturer's instructions and replacement part catalogs available
from your equipment supplier.
. When