Electrical Legend - McQuay SWT C Series Installation And Maintenance Manual

Electrical Legend

Designation Description
ACT1 ACTUATOR,VARIABLE INLET VANES
ACT2 ACTUATOR,BYPASS VALVE
ACT3 ACTUATOR,WATERSIDE ECONOMIZER
AFD10 ADJUST.FREQUENCY DRIVE--SUPPLY FAN
CCB1,2 COMPR CONTROL BOARDS--REFRIG. CIR-
CUITS
COMPR#1-6 COMPRESSORS #1--6
DAT DISCHARGE AIR TEMP. SENSOR
DHL DUCT HI-LIMIT
DS1 DISCONNECT--TOTAL UNIT OR
COND/HEAT
DS2 DISCONNECT--SAF/RAF/CONTROLS
EWT ENT. COND. WATER SENSOR
F1 FUSE--CONTROL CIRCUIT
FB10 FUSEBLOCK--SUPPLY FAN
FB11,12 FUSEBLOCKS--ELECTRIC HEAT
FB1--6 FUSEBLOCKS--COMPRESSOR #1-6
FB8 FUSEBLOCK--MAIN TRANSFORMER
FP1-6 FROST PROTECTION--REFRIG. CIRCUITS
FS1 FREEZESTAT CONTROL
GRD GROUND
HL13-14 HI-LIMITS, PWR, ELEC HEATERS
HP1-6 HI-PRESSURE CONTROLS, REFRIG
HTR-11,12 ELECTRIC HEATERS
HTR-15,16 ELECTRIC HEATERS
HTR1-6 CRANKCASE HEATERS
HUM1 HUMIDSTAT SENSOR
LP1-6 LO-PRESSURE CONTROLS, REFRIG
LWT LEAVING COND. WATER SENSOR
M10 CONTACTOR--SUPPLY FAN
M11,12 CONTACTORS--ELECTRIC HEAT CONTROL
M13,14 CONTACTORS--ELECTRIC HEAT SAFETY
M15,16 CONTACTORS--ELECTRIC HEAT CONTROL
M1-6 CONTACTORS--COMPR#1-6
M17,18 CONTACTORS--ELECTRIC HEAT SAFETY
M30 CONTACTOR--INVERTER BYPASS
MAT MIXED AIR TEMP SENSOR
MCB1 MICROPROCESSOR CIRCUIT BOARD #1
MJ MECHANICAL JUMPERS
MP1-6 MOTOR PROTECTOR--COMPR#1-6
NB1 NEUTRAL BLOCKS
22
Standard Location
SUPPLY FAN SECTION OAE
CONDENSER VALVE OAT
WATERSIDE ECONO OL10
VALVE
MAIN CONTROL PB1
MAIN CONTROL PB2
COMPRESSOR SEC- PC5
TION
NEAR FAN INLET PC7
COIL SECTION PM1
MAIN CONTROL PSR1,2
MAIN CONTROL PVM1
COND. WATER INLET PVM2
MAIN CONTROL R11
MAIN CONTROL R12
MAIN CONTROL R1-6
MAIN CONTROL R18
MAIN CONTROL R67
EVAP. COIL RAE
BT/DT COIL RAT
ALL CONTROL BOX S1
ELECTRIC HEAT S4,5
JCT.BOX
ON COMPRESSORS S7
#1-6
DX COIL S8
DX COIL S9
ON COMPRESSORS SD1
#1-6
EXTERNAL SD2
ON COMPRESSORS SPS1,2
#1-6
COND. WATER OUTLET T1
MAIN CONTROL T2
MAIN CONTROL T3
MAIN CONTROL TB10
MAIN CONTROL TB2
MAIN CONTROL TB3
MAIN CONTROL TB4
MAIN CONTROL TB5
BEHIND FILTERS TB6
MAIN CONTROL TB8
ON TEMINAL BLOCKS VM1
ON COMPRESSORS VM5
#1-6
MAIN CONTROL WF1
ZNT1
1.
FIELD WIRING
2.
TERMINAL
3.
FIELD WIRING TERMINAL
4. TERMINAL P.C. BOARD FACTORY WIRED
200
WIRE NUMBER
5.
6. WIRE CONNECTOR
7. OPTION BLOCK
PLUG IN CONNECTOR
8.
9. M/J
MECHANICAL JUMPER
Designation Description
OUTSIDE AIR ENTHALPY
OUTSIDE AIR TEMP. SENSOR
OVERLOAD RELAY--SUPPLY FAN
POWER BLOCK--TOTAL UNIT OR
COMPR/HEAT
POWER BLOCK--SAF/RAF/CONTROLS
PRESSURE CONTROL--CLOGGED FILTER
PRESSURE CONTROL--PROOF AIRFLOW
PHONE MODEM
PRESSURE SENSOR,REFRIGERANT
PHASE VOLTAGE MONITOR
PHASE VOLTAGE MONITOR
RELAY--ELECTRIC HEAT STAGE 1 HW/S
CLOSE
RELAY--ELECTRIC HEAT STAGE 2 HW/S
OPEN
RELAYS--HI-PRESSURE
RELAY--COOL ENABLE
RELAY--ENABLE SUPPLY FAN
RETURN AIR ENTHALPY
RETURN AIR TEMP. SENSOR
SWITCH--SYSTEM ON/OFF
SWITCHES--INVERTER BYPASS
SWITCH--LOCAL ON/OFF TO CONTROLLER
SWITCH--COOL ENABLE
SWITCH--HEAT
SMOKE DETECTOR--SUPPLY FAN
SMOKE DETECTOR--RETURN FAN
STATIC PRESSURE SENSORS--DUCT/BLDG MAIN CONTROL
TRANSFORMER--MAIN CONTROL
(LINE/115V)
TRANSFORMER--CONTROL INPUT 24V
TRANSFORMER--CONTROL OUTPUT 24V
TERMINAL BLOCK--
TERMINAL BLOCK--24V-FACTORY/FIELD
TERMINAL BLOCK--24V-
TERMINAL BLOCK--24V-COMPRESSOR
TERMINAL BLOCK--115V-FACTORY/FIELD
TERMINAL BLOCK--115V/24V FACTORY
TERMINAL BLOCK--
VALVE MOTOR #1--HEATING
VALVE MOTOR #5--COOLING
CONDENSER WATER FLOW SWITCH
ZONE TEMP. SENSOR--SETBACK
Standard Location
EXTERNAL
EXTERNAL
MAIN CONTROL
MAIN CONTROL
MAIN CONTROL
COIL SECTION
COIL SECTION
MAIN CONTROL
LIQ. SHUTOFF VALVES
MAIN CONTROL
MAIN CONTROL
MAIN CONTROL
MAIN CONTROL
MAIN CONTROL
MAIN CONTROL
MAIN CONTROL
EXTERNAL
EXTERNAL
MAIN CONTROL
MAIN CONTROL
MAIN CONTROL
MAIN CONTROL
MAIN CONTROL
EXTERNAL
EXTERNAL
MAIN CONTROL
MAIN CONTROL
MAIN CONTROL
MAIN CONTROL
MAIN CONTROL
MAIN CONTROL
MAIN CONTROL
MAIN CONTROL
MAIN CONTROL
MAIN CONTROL
NEAR HOT WATER
INLET
NEAR CHILLED WATER
NEAR CONDENSER
FIELD INSTALLED
IM709