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 COMPRESSO R 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]
FFUSE
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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