DRAWING INDEX
SCHEMATIC SYMBOLS
DRAWING NO. DESCRIPTION
336078101
336078102
336078103
336078104
336078105
336078106
SCHEM, LEGEND, WME-C, SECT 1
SCHEM, CHILLER CONTROLLER, WME-C, SECT 2
SCHEM, COMPRESSOR CONTROLLER, WME-C, SECT 3
SCHEM, MOTOR BEARING CONTROLLER, WME-C, SECT 4
SCHEM, POWER TRAIN, WME-C, SECT 5
SCHEM, DUAL SINGLE-POINT, WME-C, SECT 6
M
Supplied
Customer
POWER SOURCE,
CUSTOMER SUPPLIED
CONTACT,
NORMALLY CLOSED
ACTUATOR
SWITCH,
PRESSURE
SWITCH,
THERMAL
CIRCUIT BREAKER,
3-POLE
CIRCUIT BREAKER,
1-POLE
CABLE SHIELD
CAPACITOR BANK
RELAY COIL
CONTACT,
NORMALLY OPEN
SWITCH,
FLOW
FAN
GROUND,
EARTH
TRANSFORMER,
MAGNETIC CORE
INDUCTOR,
3-PHASE
TERMINAL BLOCK
CONNECTOR
SOLENOID
VALVE
SWITCH
WIRING,
FIELD
WIRING,
FACTORY
THERMISTOR
ARROW,
SIGNAL SOURCE
ARROW, SIGNAL
DESTINATION
###
TERMINAL BLOCK,
LAYOUT
GROUND,
SHIELDED EARTH
2
1
1
2
CONNECTOR,
PLUG
CONNECTOR,
RECEPTACLE
TERMINAL
LIGHT,
INDICATOR
FUSE
MOTOR
SCHEMATIC LEGEND
VFD
VARIABLE FREQUENCY DRIVE
TB
TERMINAL BLOCK
EMI
ELECTRO-MAGNETIC INTERFERENCE FILTER
TR
TRANSFORMER
SGS
SURGE SUPPRESSOR
F
FUSE
TSW
THERMAL SWITCH
DS
DISCONNECT SWITCH
EN
ENABLE
CM
COMMON
CPBT
CAPACITOR BANK
HMI
HUMAN MACHINE INTERFACE
HARMONIC FILTER ENABLE
HFEN
HFCM
HARMONIC FILTER COMMON
VFD ENABLE
VFEN
VFDP
VARIABLE FREQUENCY DRIVE BUS (+)
VFDN
VARIABLE FREQUENCY DRIVE BUS (-)
INLET GUIDE VANE
INLET GUIDE VANE DRIVER
IGV
IGVDRV
INDICATOR LIGHT
IL
GROUND
GND
COMPRESSOR
CMPR
CE1
COMPRESSOR CONTROLLER EXPANSION
CC1
COMPRESSOR CONTROLLER
MBC-EN
MOTOR BEARING CONTROLLER ENABLE
MBC
MOTOR BEARING CONTROLLER
LIQUID LINE TEMPERATURE
LLT
LIQUID LINE PRESSURE SENSOR
LLP
LIV
LIQUID INJECTION VALVE SOLENOID
SNSR-5V
SENSOR 5 VOLT REFERENCE
SNSR-GND
SENSOR GROUND REFERENCE
SCV
STATOR COOLING VALVE
ETHERNET HUB
S1
SWITCH
SW
SP
SUCTION PRESSURE SENSOR
DP
DISCHARGE PRESSURE SENSOR
CTB
COMPRESSOR TERMINAL BLOCK
CONDENSOR PRESSURE SENSOR
CNDP
UNIVERSAL SERIAL BUS
USB
UNIT TERMINAL BLOCK
UTB
UNIT CONTROLLER
UC1
UNIT CONTROLLER EXPANSION
UE1
BACNET/UNIT EXTENSION MODULE
BEU
CIRCUIT BREAKER
CB
PROTECTIVE EARTH
PE
INDUSTRIAL COMPUTER
PC
PS
POWER SUPPLY
PWR
POWER
EXV
ELECTRONIC EXPANSION VALVE
ETHERNET
ETR
EXPANSION VALVE DRIVE
EXVDRV
EVAPORATOR PRESSURE SENSOR
EVPP
ALARM RELAY
AR
ACTUATOR
ACT
CONDENSOR PUMP
CP
EVAPORATOR PUMP
EP
TS
TOWER STAGE
RPS
REDUNDANCY POWER SUPPLY
RAPID RESTORE MODULE
RR
REDUNDANCY MODULE
RM
RELAY - HARMONIC FILTER ENABLE
K1R
REACTOR - DC
REC
HARMONIC FILTER - THERMAL SWITCH
TRTS1
CAPACITOR BANK RELAY
CNT1
INDUSTRIAL POWER SUPPLY
IPS
INDUSTRIAL POWER SUPPLY OUTPUT
IPSVA
FUSED INDUSTRIAL POWER SUPPLY OUTPUT
IPSDC
INDUSTRIAL POWER SUPPLY ALARM
IPOTAL
PFD
POWER FAULT DETECTION
PFD-CM
POWER FAULT DETECTION - COMMON
VFPLC
VFD ENABLE 24 VOLTS
MCB01
CIRCUIT BREAKER
ST
SUCTION TEMPERATURE
DT
DISCHARGE TEMPERATURE
GT
MOTOR GAP TEMPERATURE
ROTOR COOLING DRIVER
RCDRV
ROTOR COOLING VALVE
RCV
MOTOR WINDING TEMPERATURE
MWT
PART LOAD BALANCING VALVE
PLBV
PART LOAD BALANCING DRIVER
PLBDRV
CASE TEMPERATURE
CT
EVAPORATOR ENTERING WATER TEMPERATURE
EEWT
EVAPORATOR LEAVING WATER TEMPERATURE
ELWT
CONDENSOR ENTERING WATER TEMPERATURE
CEWT
CONDENSOR LEAVING WATER TEMPERATURE
CLWT
CONDENSOR ENTERING FLOW SWITCH
CEFS
EVAPORATOR ENTERING FLOW SWITCH
EEFS
POWER FAULT RELAY
RY01
FIELD CONNECTIONS
1. FIELD WIRING MUST BE SELECTED AND INSTALLED IN ACCORDANCE WITH THE NATIONAL ELECTRIC CODE (NEC) STANDARD OR LOCAL CODES. USE COPPER WIRES ONLY WITH AMPACITY BASED ON 75° C RATING 24VAC WIRING. OPTIONAL SENSOR AND DC
2. EVAPORATOR AND CONDENSOR FLOW SWITCHES ARE FACTORY INSTALLED AND MANDATORY: IF FIELD INSTALLED DIFERENTIAL PRESSURE SWITCHES ARE REQUIRED, THESE MUST BE INSTALLED ACROSS THE VESSEL AND NOT THE PUMP.
3. THE EVAPORATOR PUMP RELAY WILL CYCLE THE WATER PUMP IN RESPONSE TO THE CHILLER BEING ENABLED.
4. THE CONDENSOR WATER PUMP MUST CYCLE WITH THE CHILLER.
5. FIELD SUPPLIED RELAY COIL RATED FOR 24VDC OR 24-230VAC WITH MAXIMUM 25 VA LOAD.
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