Bryant FA4ANF Service Manual

AUG/14/2008/THU 03:45 РМ
С
UTC TECH PUB
Service Manual
FAN COIL UNITS
INTRODUCTION
UNIT IDENTIFICATION
PRODUCT OFFERING...
FAN MOTOR SPEED TABS ..
FA4A, FB4A, FCAB, з AND FH4A CIRCUIT BOARD
FUNCTION. АМР: TROUBLESHOOTIN G.
* Printed Circoit Board (РСВ) Component;
^ Unit Functions — 235 EET
* Troubleshooting РСВ К
ELECTRIC HEATER FUNCTION |
AND TROUBLESHOOTIN: с...
* Description of Electric Heater "Components
* Troubleshooting KFA and KFB Series Electric Heaters
ЕК4В FAN COIL DESCRIPTION den
AND TROUBLESHOOTING ;
* Integrated Controls and Motor (ICM2)
- * PCB Layout and Description
Ы Әетшелсе of Operation E
V'Easy Select Configuration Taps- '
* Troubleshooting PCB
* Troubleshooting ICM2
* Condensed Version of Troubleshooting ЕКАВ Motor
. and Controls
* Accessories
THERMOSTATIC EXPANSION VALY (TXF) sse 15
* Problems Affecting TXV :
PISTON BODY CLEANING ОК REFLÁCEMENT
LIQUID TUBE STRAINER.
COIL/CONDENSATE PAN REMOV.
AND REPLACEMENT
* A-Coil Units
* Slope Coil Units
CARE AND MAINTENANCE
* Filter Assembly
* Cooling Coil, Drain 'Pan, and Condensat Drain
ЕРІЛ/ЕГІВ SERVICE AND TROUBLESHOOTING s 18-21
* Fan Motor - в.
* Electric Heater Service
* Cleaning or Repladiig Refrigerant Flow:Control Device
* Liquid Tube Strainer - :
* Sequence of Operation E
FD3A SERVICE AND TROUBLESHOOTING ............... 21-23
* Fan Motor
* Electric Heater Service
* Cleaning or Replacing Refrigerant Flow- Control Device
* Liquid Tube Strainer
* Care and Maintenance
ЕСЗА SERVICE AND TROUBLESHOOTING...
* Service
* Maintenance
FAX No. 317 240 5682 P. 001
"Gancels: $М03-1
" b 1-1-95
о
8 A820
Fig. 1--Typical Fan Coll
* PCB Component Layout, Description, and Function
* Unit Functions
* Smart Heat Operation
* Electrical Operating Sequences and Troubleshooting
a SAFETY CONSIDERATIONS
Тиргорег installation, adjustment, alteration, service, maintenance,
ОТ usc cap cause explosion, fire, electrical shock, or other
conditions which may cause personal injury or property damage.
Consult а qualified installer, service agency, or your distributor ox
Бїапсһ for information or assistance. The qualified installer ог
agency must use factory-authorized kits or accessories when
modifying this.product. Refer to the individual installation instruc-
tions packaged with the kits or accessories for detailed informa-
tion,
Follow all safety codes. Wear safety glasses and work gloves. Use
quenching cloth for brazimg operations. Have fire extinguisher
available. Réad these instructions thoroughly and follow all
warnings or cautions attached to the unit, Consult local building
бейін and National Electrical Cade (NEC) for special installation
requirements.
It is important to recognize safety information. This is the
safety-alert symbol/A . When you see this symbol on the unit or in
instructions and manuals, be alert to the potential for personal
injury.
Understand the signal words DANGER, WARNING, and CAU-
TION. These words are used with the safety-alert symbol, DAN-
GER identifies the most serious hazards which will result in severe