7-1
T-296
SECTION 7
ELECTRICAL WIRING SCHEMATIC
7.1 INTRODUCTION
This section contains the Electrical Schematics and Wiring Diagrams. The diagrams are presented as follows:
Figure 7-1 Provides the legend for use with all figures.
Figure 7-2 Provides the schematic diagram for units with PID numbers: NT0435, NT0566 and NT0669
Figure 7-3 Provides the wiring diagram for units with PID numbers: NT0435, NT0566 and NT0669
Figure 7-4 Provides the schematic diagram for units with PID Number 0712
Figure 7-5 Provides the wiring diagram for units with PID Number 0712
Figure 7-6 Provides the schematic diagram for units with PID Number 0881
Figure 7--7 Provides the wiring diagram for units with PID Number 0881
SYMBOL
DESCRIPTION
AMBS
AMBIENT SENSOR
CB1
CIRCUIT BREAKER -- 460 VOLT
CCH
CRANKCASE HEATER
CFS
CONDENSER FAN SWITCH
CH
COMPRESSOR CONTACTOR
CI
COMMUNICATIONS INTERFACE MODULE
CM
CONDENSER FAN MOTOR
CP
COMPRESSOR MOTOR
CPT
CONDENSER PRESSURE TRANSDUCER
CR
CHART RECORDER [TEMPERATURE RECORDER]
CS
CURRENT SENSOR
DHBL
DEFROST HEATER -- BOTTOM LEFT
DHBR
DEFROST HEATER -- BOTTOM RIGHT
DHH
DRAIN HOSE HEATER
DHML
DEFROST HEATER -- MIDDLE LEFT
DHMR
DEFROST HEATER -- MIDDLE RIGHT
DHTL
DEFROST HEATER -- TOP LEFT
DHTR
DEFROST HEATER -- TOP RIGHT
DL
DEFROST LIGHT
DPH
DRAIN PAN HEATER
DPT
DISCHARGE PRESSURE TRANSDUCER
DTS
DEFROST TEMPERATURE SENSOR
DVM
DUAL VOLTAGE MODULE
DVR
DUAL VOLTAGE RECEPTACLE
EF
EVAPORATOR FAN CONTACTOR [HIGH]
EM
EVAPORATOR FAN MOTOR
ES
EVAPORATOR FAN CONTACTOR [LOW]
F
FUSE
FDH
FUSE -- DRAIN LINE HEATER
FED
FUSE -- EMERGENCY DEFROST
LEGEND
SYMBOL
DESCRIPTION
HHT
HOSE HEATER THERMOSTAT
HPS
HIGH PRESSURE SWITCH
HR
HEATER CONTACTOR
HST
HOSE HEATER SAFETY THERMOSTAT
HTT
HEAT TERMINATION THERMOSTAT
IC
INTERROGATOR CONNECTOR [FRONT/REAR]
IP
INTERNAL PROTECTOR
MDS
MANUAL DEFROST SWITCH
PE
PRIMARY EARTH
PR
PROBE RECEPTACLE [USDA]
RM
REMOTE MONITORING RECEPTACLE
RRS
RETURN RECORDER SENSOR
RTS
RETURN TEMPERATURE SENSOR
SD
STEPPER MOTOR DRIVE
SMV
SUCTION MODULATING VALVE
SPT
SUCTION PRESSURE TRANSDUCER
SRS
SUPPLY RECORDER SENSOR
ST
START -- STOP SWITCH
STS
SUPPLY TEMPERATURE SENSOR
TC
CONTROLLER RELAY -- COOLING
TE
CONTROLLER RELAY -- HIGH SPEED EVAP FANS
TF
CONTROLLER RELAY -- DEFROST
TH
CONTROLLER RELAY -- HEATING
TN
CONTROLLER RELAY -- CONDENSER FAN
TP
TEST POINT
TQ
CONTROLLER RELAY -- WATER TANK HEATER
TR
TRANSFORMER
TRANS AUTO TRANSFORMER 230/460
TV
CONTROLLER RELAY -- LOW SPEED EVAPORATOR
FANS
WP
WATER PRESSURE SWITCH
Figure 7-1 LEGEND
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