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TYPICAL SCHEMATIC WIRING DIAGRAM
MODELS : PT300 - PT360 (Dual compressor units)
LEGEND
AR AUXILIARY RELAY
AFS AIRFLOW SWITCH
ATB AUXILIARY TERMINAL BLOCK
BM BLOWER MOTOR
BMC BLOWER MOTOR CONTACTOR
CC COMPRESSOR CONTACTOR
CCA AUXILIARY CONTACT
CB CIRCUIT BREAKER
C. HTR CRANKCASE HEATER
COMP COMPRESSOR
ECB ELECTRONIC CONTROL BOARD
FCS FAN CYCLING SWITCH
F FUSE
FL FUSE LINK
FM FAN MOTOR (CONDENSER)
FMC FAN MOTOR CONTACTOR
FR FAULT RELAY
HC HEATER CONTACTOR
HPS HIGH PRESSURE SWITCH
HVTB HIGH VOLTAGE TERMINAL BLOCK
HTR HEATER
JP JUMPER
L1 LINE 1
L2 LINE 2
L3 LINE 3
LPS LOW PRESSURE SWITCH
LUG LUG GROUND
NTB NEUTRAL TERMINAL BLOCK
O/L OVER LOAD
OHT OVER HEAT THERMOSTAT
PDS PUMP DOWN SOLENOID
SSPS SOLID STATE PROTECTIVE SYSTEM
SD SMOKE DETECTOR
TRANS TRANSFORMER
T'STAT THERMOSTAT
UVM UNDER VOLTAGE MONITOR
FIELD WIRING
DISCONNECT TAB - 1/4"
SPLICE-CLOSED END
TERMINAL BLOCK OR TERMINATION POINT
_ _ _
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NOTES
1. POWER SUPPLY, 380/415V-3PH-50Hz.
2. ANY WIRE REPLACEMENT SHOULD BE OF 90
0
C OR ITS
EQUIVALENT. USE COPPER CONDUCTOR WIRES ONLY.
3. IF PDS & HEATERS ARE FACTORY INSTALLED, PLEASE
READ BROKEN LINES AS CONTINUOUS LINES.
4. POWER MUST BE SUPPLIED TO CRANKCASE HEATER FOR
MINIMUM OF 12 HOURS PRIOR TO SYSTEM START UP.
IF POWER IS OFF 6 HOURS OR MORE, CRANKCASE
HEATER MUST BE ON FOR 12 HOURS BEFORE OPER-
ATING THE SYSTEM.
FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RE-
SULT IN COMPRESSOR DAMAGE.
5. FUSED DISCONNECT SWITCH OR CIRCUIT BREAKER
TO BE PROVIDED BY CONSUMER WITH RATING AS
RECOMMENDED BY COOLINE.
6. COMPRESSORS ARE PROVIDED WITH INTERNAL OVERLOAD.
7. IF COMPRESSOR IS SUPPLIED WITH SSPS, CONNECT AS
SHOWN. PLEASE ALLOW 2-3 MINUTES FOR SSPS SWITCH
TO CLOSE, BEFORE STARTING THE UNIT.
8. IF ANY CHANGE IN DIP SWITCH SETTING IS REQUIRED,
TURN OFF POWER FIRST & SET REQUIRED SETTING.
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