SECTION 3 3000P-4500 USER MANUAL
43
3.13 WIRING DIAGRAM, VSD AIR-COOLED
COMP DESCRIPTION
1M COMPRESSOR MOTOR
2M COOLER FAN MOTOR STARTER
2MOL FAN MOTOR OVERLOAD
1FU FAN MOTOR BRANCH CIRCUIT FUSES
2FU SCD TRANSFORMER PRIMARY FUSES
3FU SCD TRANSFORMER SCONDARY FUSE
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 FAN RELAY CONTACT TEMP (T1) CONTROLLED
K2 INTERNAL Y-DELTA START RELAY COMPRESSOR RUNNING
K3 INTERNAL WYE-DELTA RUN RELAY COMPRESSOR
ENABLED
K4 INTERNAL LOAD CONTROL RELAY
K5 INTERNAL SEQUENCE RELAY
K6 INTERNAL ELECTRIC DRAIN RELAY
K7 INTERNAL COMMON FAULT RELAY
PMR OPT’L POWER MONITOR RELAY
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
XFMR1 CONTROL TRANSFORMER FOR SCD DRAIN
SCD (OPT’L) 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 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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