Comfortmaker QuietComfort FTMA5 Installation Instructions Manual

FTMA5
Fan Coil, QuietComfort,
for R-454B Refrigerant
2 thru 5 Ton
NOTE: Read the entire instruction manual before starting the
installation.
Fig. 1 - Typical Unit

Table of Contents

Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Check Equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Mount Fan Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Upflow Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Modular Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Horizontal Installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Downflow Installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Manufactured and Mobile Home Housing Applications . . . . . . . . 6
Air Ducts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Heat Staging Option. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Manufactured Housing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Refrigerant Tubing Connection and Evacuation . . . . . . . . . . . . . 10
Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Leak Dissipation System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Leak Dissipation System Self-Test . . . . . . . . . . . . . . . . . . . . . . . 12
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Unit Start-Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Easy Select Configuration Taps. . . . . . . . . . . . . . . . . . . . . . . . . . 13
Accessory Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Fan Coil Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . 16
Troubleshooting ECM Motor and Controls . . . . . . . . . . . . . . . . . 16
Start-Up Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Care and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Installation Instructions
A02332A

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
warning 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. When you see this symbol
and in instructions or 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 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.
on the unit