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RLC-PRC016-EN
Jobsite
Connections
Figure J-1 — Typical Jobsite Wiring
NOTES:
1. DASHED LINES INDICATE RECOMMENDED FIELD WIRING BY OTHERS.
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 (CANNOT BE USED WITH OPT. L)
B COMMUNICATIONS INTERFACE
D WYE-DELTA CLOSED TRANSITION STARTER
E CONTROL POWER TRANSFORMER.
H UNIT DISCONNECT, NON-FUSED
J CHILLED WATER RESET - RETURN WATER
K CHILLED WATER RESET - OUTDOOR AIR
L CHILLED WATER RESET - ZONE AIR (CANNOT BE USED WITH OPT. A)
S CHILLED WATER FLOW SWITCH (NOT REQUIRED FOR CHILLER
PROTECTION)
T REMOTE CLEAR LANGUAGE DISPLAY.
(BUFFER FOR DISPLAY LOCATED IN UNIT CONTROL PANEL.)
5. 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 LOCAL OR REMOTE
CLEAR LANGUAGE DISPLAY.
6 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. TO BE IN SERIES WITH WATER PUMP RELAY (3K21).
7 NORMALLY OPEN CONTACTS FOR REMOTE SHUTDOWN OR REFRIGERANT CIRCUIT
OPERATION. THE REFRIGERANT CIRCUIT WILL GO THRU A NORMAL SHUTDOWN
WHEN THE CONTACTS ARE CLOSED AND WILL AUTOMATICALLY RESUME NORMAL
START AND RUN MODES WHEN CONTACTS ARE OPEN.
WIRING
8 ALL CUSTOMER CONTROL CIRCUIT WIRING MUST HAVE A MINIMUM RATING OF 150
VOLTS.
9. ALL FIELD WIRING MUST BE IN ACCORDANCE WITH THE NATIONAL ELECTRICAL CODE
(NEC), STATE, AND LOCAL REQUIREMENTS. OUTSIDE THE UNITED STATES, OTHER
COUNTRIES APPLICABLE NATIONAL AND/OR LOCAL REQUIREMENTS SHALL APPLY.
REQUIRED WIRING
10 COPPER WIRE ONLY – SIZED PER N.E.C. – BASED ON NAMEPLATE MINIMUM CIRCUIT
AMPACITY (MCA). SEE CUSTOMER WIRE SELECTION TABLE.
11 2 WIRES, 115 VAC CIRCUIT. MINIMUM CONTACT RATING AT 115 VAC – 5.9 VA INRUSH.
1.3 VA SEALED.
12 FOR UNITS WITHOUT THE CONTROL POWER TRANSFORMER (1T1) OPTION, THE
CUSTOMER MUST PROVIDE CONTROL POWER OF 115 VAC, 60 HERTZ, SINGLE PHASE,
750 VA. THE CONTROL POWER TRANSFORMER (1T1) IS STANDARD ON 50 HERTZ
UNITS.
13 FOR ALL UNITS, THE HEAT TAPE MUST BE POWERED FROM A SEPARATE CUSTOMER
PROVIDED 115V, 60 HZ; OR 220V, 50 HZ, 420 WATT SOURCE.