3000PB, 3700B, 4500B, 3000PVB, 3700VB, 4500VB User Manual 3: Specifications
02250216-786 R01
Subject to EAR, ECCN EAR99 and related export control restrictions. 37
3.13 Wiring diagram, YD
Component Description
1MOL COMPRESSOR OVERLOAD
1M WYE-DELTA STARTER
2M WYE-DELTA RUN CONTACTOR
S WYE-DELTYA 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
1FU TRANSFORMER PRIMARY FUSES
2FU TRANSFORMER SECONDARY FUSE 115V
3FU TRANSFORMER SECONDARY FUSES 24V
4FU FAN MOTOR BRANCH FUSES
JZL (OPT'L) JZL DRAIN
XFMR UNIVERSAL TRANSFORMER
1MCR CONTROL RELAY FOR 300A CONTACTORS
2MCR CONTROL RELAY FOR 300A CONTACTORS
CRS CONTROL RELAY FOR 300A CONTACTORS
Drawing notes
1
CUSTOMER TO FURNISH FUSED OR CIRCUIT BREAKER
DISCONNECT PER LOCAL CODES.
2
REMOVE JUMPER FOR AUXILIARY 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.
Starter T1T2T3T4T5T6
Low T1,T7 T2,T8 T3,T9 T4,T10 T5,T11 T6,T12
High T1T2T3T10T11T12
Join T4-T7 T5-T8 T6-T9
Component Description
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