3000PB, 3700B, 4500B
, 3000PVB, 3700VB, 4500VB User
Manual
3: Specifications
02
250
216
-7
86 R0
1
Sub
jec
t to
EAR, ECCN
EAR99
and
rela
ted
exp
ort c
ontro
l res
tricti
ons
.
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
T1
T2
T3
T4
T5
T6
Low
T1,T7
T2,T8
T3,T9
T4,T10
T5,T11
T6,T12
High
T1
T2
T3
T10
T11
T12
Join
T4-T7
T5-T8
T6-T9
Component Description
