Pub. No. 11-AC17D1-1
PAGE 5
INSTALLER'S GUIDE
TYPICAL FIELD WIRING DIAGRAMS
Notes:
1. Be sure power supply agrees with equipment nameplate.
2. Power wiring and grounding of equipment must comply with local codes.
3. Low voltage wiring to be No. 18 AWG minimum conductor.
4. ODT-B must be set lower than ODT-A.
5. If outdoor thermostats (ODT) are not used, connect W1 to W2 and W3.
6. N/A to programmable thermostat.
H. OPERATIONAL AND CHECKOUT PROCEDURES
Final phases of this installation are the unit Operational and
Checkout Procedures which are found in this instruction on
page 8. To obtain proper performance, all units must be oper-
ated and charge adjustments made in accordance with proce-
dures found on page 6 and in the Service Facts.
I. ELECTRIC HEATERS
Electric heaters, if used, are to be installed in the air handling
device according to the instructions accompanying the air han-
dler and the heaters.
J. OUTDOOR THERMOSTAT
An outdoor thermostat TAYSTAT250B may be field installed.
For data, see wiring diagram attached to unit and instruction
sheet packaged with outdoor thermostat.
K. SEACOAST SALT SHIELD
BAYSEAC001 (Seacoast Kit) is available for application on
units installed within one mile of salt water, including sea-
coasts and inland waterways.
LEGEND
FACTORY WIRING
FIELD WIRING
REFRIGERANT CIRCUIT
Liquid Pressure Too High
Liquid Pressure Too Low
Suction Pressure Too High
Suction Pressure Too Low
Liquid Refrig. Floodback TXV System
I.D. Coil Frosting
Compressor Runs Inadequate or No Cooling
ELECTRICAL
Compressor & O.D. Fan Do Not Start
Compressor Will Not Start But O.D. Fan Runs
O.D. Fan Won’t Start
Compressor Hums But Won’t Start
Compressor Cycles on IOL
I.D. Blower Won’t Start
SYSTEM FAULTS
P - Primary Causes S - Secondary Causes
P
P
P
S
S
P
S
S
S
S
S
P
S
S
S
P
P
P
S
S
S
S
S
S
S
P
P
P
S
P
P
S
S
S
P
P
P
P
P
P
P
P
P
P
S
S
S
S
P
P
P
P
P
S
S
P
S
P
S
S
S
S
S
S
S
P
P
P
P
P
S
P
P
POWER SUPPLY
HIGH VOLTAGE W
IRING
COMPR. IOL
RUN CAPACITOR
START CAPACITOR
START R
ELAY
CONTAC
TOR CO
NTACTS
LOW VO
LTAGE WIRING
CONTRO
L TRANSFORMER
CONTAC
TOR CO
IL
LOW VO
LTAGE FUSE
STUCK C
OMPRESSOR
INEFFICI
ENT COMPRESSO
R
REFRIGERANT U
NDERCHARGE
REFRIGE
RANT OVERCHA
RGE
EXCESS
IVE EVAP. LOAD
NONCON
DENSABLES
RESTRICTED O.D
. AIRFLOW
O.D. AIR RECIR
CULATION
TXV ST
UCK OPEN
SUPERHEAT
RESTRICTED I.D.
AIRFLOW
REF. CIRCUIT RESTRICTIONS
O.D. FAN SPEED
SWITCH
TROUBLESHOOTING CHART — WHAT TO CHECK
L. TROUBLESHOOTING CHART
