SECTION 3 3000P-4500 USER MANUAL
49
3.16 WIRING DIAGRAM, YD CE
COMP DESCRIPTION
1MOL COMPRESSOR OVERLOAD
1M WYE-DELTA STARTER
2M WYE-DELTA RUN CONTACTOR
S WYE-DELTA START CONTACTOR
3MOL FAN MOTOR OVERLOAD
4M CONTACTOR FOR POWER FACTOR CAPACITOR OPT.
P1 WET SUMP PRESSURE SENSOR
P2 PACKAGE DISCHARGE PRESSURE SENSOR
T1 UNIT DISCHAGE TEMPERATURE PROBE
PSW1 (OPT’L)INLET AIR FILTER SWITCH 558.9 MM WC - 22 IN WC
DPSW1 (OPT’L)OIL FILTER DIFF PRESS SWITCH 20PSID
INPUT 7 REMOTE RUN/UNLOAD
INPUT 8 CUSTOMER FURNISHED FAULT
INPUT 9 CUSTOMER FURNISHED WARNING
SOL1 LOAD CONTROL SOLENOID VALVE
SOL4 SEQUENCEING SOLENOID VALVE
SOL5 ELECTRIC CONDENSATE DRAIN VALVE
PS 24VDC POWER SUPPLY
K1 INTERNAL RUN RELAY CONTACT
K2 INTERNAL Y-DELTA START RELAY
K3 INTERNAL WYE-DELTA RUN RELAY
K4 INTERNAL LOAD CONTROL RELAY
K5 INTERNAL SEQUENCE RELAY
K6 INTERNAL ELECTRIC DRAIN RELAY
K7 INTERNAL COMMON FAULT RELAY
PF CAP POWER FACTOR CORRECTION CAPACITOR (OPT’L)
HTR1 (OPT’L) SUMP HEATER 800W
HTR2 (OPT’L) HEAT TRACE
HTR3 (OPT’L) TRAP HEATER 70WATTS
HTR4 (OPT’L) CONTROL PANEL HEATER 50WATTS
TH THERMOSTAT FOR HEAT TRACE OPTION
CB1 (OPT'L) TRANSFORMER PRIMARY CIRCUIT BREAKER
CB2 (OPT'L) TRANSFORMER SECONDARY CIRCUIT BREAKER
SCD SCD DRAIN OPTION
PPR POWER PRESENT RELAY OPTION
XFMR CONTROL TANSFORMER FOR OPTIONAL SCD DRAIN
NOTES
1 CUSTOMER TO FURNISH FUSED OR CIRCUIT BREAKER DIS-
CONNECT PER LOCAL CODES.
2 REMOVE JUMPER FOR AUXILLIARY E-STOP STRING
DEVICES.
3 1MOL RELAY SET AT 58% OF 1M FULL LOAD PLUS 3M FULL
LOAD.
4 USE ISOLATING RELAYS WITH DRY CONTACTS FOR ANY
OPTIONAL INPUTS TO THE WS CONTROLLER. MOUNT THE
RELAY LOCALLY IN THE STARTER BOX.
PLEASE NOTE: WHEN ORDERING PARTS,
INDICATE SERIAL NUMBER OF COMPRESSOR
COMP DESCRIPTION
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