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CG-PRC011-EN26
NOTES:
1. DASHED LINES INDICATE RECOMMENDED FIELD WIRING BY OTHERS. PHANTOM LINES INDICATE
ALTERNATE CIRCUITRY OR AVAILABLE SALES OPTION. CHECK SALES ORDER TO DETERMINE IF
WIRING IS REQUIRED FOR SPECIFIC OPTIONS.
2. ALL THREE PHASE MOTORS SUPPLIED WITH THE UNIT ARE PROTECTED UNDER PRIMARY SINGLE
PHASE FAILURE CONDITIONS.
3. CAUTION - DO NOT ENERGIZE UNIT UNTIL CHECK OUT AND START-UP PROCEDURES HAVE BEEN
COMPLETED.
4. THE FOLLOWING CAPABILITIES ARE OPTIONAL - THEY ARE IMPLEMENTED AND WIRED AS
REQUIRED FOR A SPECIFIC SYSTEM APPLICATION.
A ICE-MACHINE CONTROL
B COMMUNICATIONS INTERFACE
G REMOTE RUNNING INDICATION AND ALARM CONTACTS
H UNIT DISCONNECT, NON-FUSED
J CHILLED WATER RESET - RETURN WATER
K CHILLED WATER RESET - OUTDOOR AIR TEMP. SENSOR OPTIONAL ON CGWE AND
STANDARD ON CCAD.
L CHILLED WATER RESET - ZONE AIR
O LOW AMBIENT THERMOSTAT
P HIGH AMBIENT LOAD LIMIT THERMOSTAT
Q ENTERING AND LEAVING CONDENSER WATER TEMP. SENSOR. MATCHED PAIR OF
THERMISTORS. SENSOR KIT SHIPPED WITH UNIT AND FACTORY INSTALLED.
5. NOT USED ON 20-30 TON UNITS.
6. AUXILIARY CONTROLS FOR A CUSTOMER SPECIFIED OR INSTALLED LATCHING TRIPOUT. THE
CHILLER WILL RUN NORMALLY WHEN THE CONTACT IS CLOSED AND TRIP THE CHILLER OFF ON
MANUALLY RESETTABLE DIAGNOSTIC WHEN THE CONTACT OPENS. MANUAL RESET IS
ACCOMPLISHED AT THE CHILLER SWITCH ON THE FRONT OF THE UNIT CONTROL MODULE
(UCM).
7. AUXILIARY CONTROLS FOR A CUSTOMER SPECIFIED OR INSTALLED REMOTE AUTO/STOP
FUNCTION. THE CHILLER WILL RUN NORMALLY WHEN THE CONTACT IS CLOSED AND STOP THE
CHILLER WHEN THE CONTACT IS OPEN. RE-CLOSURE OF THE CONTACT WILL PERMIT THE
CHILLER TO AUTOMATICALLY RETURN TO NORMAL OPERATION.
8. AUXILIARY CONTROLS FOR A CUSTOMER SPECIFIED OR INSTALLED DEMAND LIMIT FUNCTION.
THE CHILLER WILL RUN NORMALLY WHEN THE CONTACT IS CLOSED AND LIMIT CHILLER
OPERATION TO ONE COMPRESSOR PER CIRCUIT WHEN THE CONTACT OPENS. . RE-CLOSURE OF
THE CONTACT WILL PERMIT THE CHILLER TO AUTOMATICALLY RETURN TO NORMAL
OPERATION.
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