Carrier 69NT40-541-001, Operation And Service

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T-316 8–2
Figure 8.1 LEGEND
SYMBOL DESCRIPTION (Schematic Location)
AMBS AMBIENT SENSOR (E--19)
BM BYPASS MODULE (D--20)
CB1 CIRCUIT BREAKER -- 460 VOLT (J--1)
CB2 CIRCUIT BREAKER -- AUTO TRANSFORMER (D--1)
CCH CRANKCASE HEATER (T--2)
CF CONDENSER FAN CONTACTOR (M--10, P--6)
CFS CONDENSER FAN SWITCH (L--10)
CH COMPRESSOR CONTACTOR (G--6, P--1)
CI COMMUNICATIONS INTERFACE MODULE (A--3)
CL COOL LIGHT (H--6)
CM CONDENSER FAN MOTOR (T--6)
CP COMPRESSOR MOTOR (T--1)
CPT CONDENSER PRESSURE TRANSDUCER (H--20)
CPDS COMPRESSOR DISCHARGE SENSOR (C--19)
CPSS COMPRESSOR SUCTION SENSOR (E--19)
CR CHART RECORDER [TEMPERATURE RECORDER]
(Figure 7-4)
CS CURRENT SENSOR (M--2)
DHBL DEFROST HEATER -- BOTTOM LEFT (T--5)
DHBR DEFROST HEATER -- BOTTOM RIGHT (T--5)
DHH DRAIN HOSE HEATER (L--14)
DHML DEFROST HEATER -- MIDDLE LEFT (T--5)
DHMR DEFROST HEATER -- MIDDLE RIGHT (R--5)
DHTL DEFROST HEATER -- TOP LEFT (T--5)
DHTR DEFROST HEATER -- TOP RIGHT (R--5)
DL DEFROST LIGHT (M--13)
DPH DRAIN PAN HEATER (R--5)
DPT DISCHARGE PRESSURE TRANSDUCER (L--20)
DTS DEFROST TEMPERATURE SENSOR (D--19)
DVM DUAL VOLTAGE MODULE (E--1)
DVR DUAL VOLTAGE RECEPTACLE (F--2)
E1 EVAPORATOR FAN CONTACTOR #1 [HIGH]
(P--8, H--11, J--11)
E2 EVAPORATOR FAN CONTACTOR #2 [HIGH]
(J--11, K--11, P--10)
EB EMERGENCY BYPASS SWITCH (L--8)
ED EMERGENCY DEFROST SWITCH (E--5, E--12, E--13)
EDL EMERGENCY DEFROST LIGHT (L--12)
EF EVAPORATOR FAN CONTACTOR [HIGH]
(M--11, P--8, P--9, P--10)
EM EVAPORATOR FAN MOTOR (T--8, T--10)
ES EVAPORATOR FAN CONTACTOR [LOW]
(M--12, R--8, R--10)
F FUSE (D--5)
FCR FUSE -- CHART RECORDER (Figure 8-4)
FDH FUSE -- DRAIN LINE HEATER (E--14)
FED FUSE -- EMERGENCY DEFROST (E--5)
FH FUSE -- HUMIDITY (Figure 8-4)
FT FUSE -- TransFRESH (Figure 8-4)
HA HUMIDITY ATOMIZER (Figure 8-4)
HHT HOSE HEATER THERMOSTAT (J--14)
HM HOUR METER (H--6)
HPR HUMIDITY POWER RELAY (Figure 8-4)
HPS HIGH PRESSURE SWITCH (J--7)
HPT HUMIDITY POWER TRANSFORMER (Figure 8-4)
HR HEATER CONTACTOR (M--13, P--3)
LEGEND
SYMBOL DESCRIPTION (Schematic Location)
HS HUMIDITY SENSOR (G--20)
HST HOSE HEATER SAFETY THERMOSTAT (G--14)
HTT HEAT TERMINATION THERMOSTAT (F--12)
HWH HUMIDITY WATER HEATER (Figure 8-4)
HWP HUMIDITY WATER PUMP (Figure 8-4)
IC INTERROGATOR CONNECTOR [FRONT/REAR]
(T--19, T--20)
IP INTERNAL PROTECTOR (F--7, H--10)
IRL IN RANGE LIGHT (M--15)
MDS MANUAL DEFROST SWITCH (H--13)
PDR PFC POWER FACTOR CORRECTOR CAPACITOR
PDR PUMP DIRECTION RELAY (Figure 8-4)
PE PRIMARY EARTH (J--2)
PR PROBE RECEPTACLE [USDA]
(F--19, M--20, N--20, P--20)
RM REMOTE MONITORING RECEPTACLE
(H--6, L--13, L--15)
RRS RETURN RECORDER SENSOR (D--19 or M17)
RTS RETURN TEMPERATURE SENSOR (D--19)
S1 EVAPORATOR FAN CONTACTOR #1 [LOW]
(G--11, J--11, R--8)
S2 EVAPORATOR FAN CONTACTOR #2 [LOW]
(J--11, K--11, R--10,)
SD STEPPER MOTOR DRIVE (C--20)
SMV SUCTION MODULATING VALVE (A--20)
SPT SUCTION PRESSURE TRANSDUCER (K--20)
SRS SUPPLY RECORDER SENSOR (L--20)
ST START -- STOP SWITCH (L--4)
STS SUPPLY TEMPERATURE SENSOR (C--20)
TBU TRANSFORMER BRIDGING UNIT
TC CONTROLLER RELAY -- COOLING (K--7)
TCC TransFRESH COMMUNICATIONS
CONNECTOR (Figure 8-4)
TD CONTROLLER RELAY -- WATER
PUMP/ATOMIZER (Figure 8-4)
TE CONTROLLER RELAY -- HIGH
SPEED EVAPORATOR FANS
(FIG 8--2 = K--11, FIG 8--3 = G--11)
TF CONTROLLER RELAY -- DEFROST (D--14)
TFC TransFRESH CONTROLLER (Figure 8-4)
TH CONTROLLER RELAY -- HEATING (K--13)
TI CONTROLLER RELAY -- IN RANGE (K--5) OR
WATER PUMP REVERSE (Figure 8-4)
TN CONTROLLER RELAY -- CONDENSER FAN (K--10)
TP TEST POINT (E--15, E--17, G--10, J--10, K--7, K--13,
M--15, FIG 8--4 & FIG 8--2 = K--11, FIG 8-3 = F--11)
TQ CONTROLLER RELAY -- WATER TANK HEATER
(Figure 8-4)
TR TRANSFORMER (M--3)
TRANS AUTO TRANSFORMER 230/460 (D--3)
TRC TransFRESH REAR CONNECTOR (Figure 8-4)
TS CONTROLLER RELAY -- NOT USED (D--15)
TV CONTROLLER RELAY -- LOW SPEED EVAPORATOR
FANS (FIG 8--2 = K--12, FIG 8--3 = G--12)
WCR WETTING CURRENT RELAY
WH WATER HEATER RELAY (Figure 8-4)
WHTT WATER HEATER TERMINATION THERMOSTAT
(Figure 8-4)
WATER PRESSURE SWITCH (F--10)