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RLC-PRC016-EN
Typical Wiring
Diagram 70-125 Tons
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 SEE INSERT “A” FOR RESISTOR CONNECTIONS TO PROGRAM AN
EXTERNAL CHILLED WATER SETPOINT WHEN 4 - 20 mA OR A 2 - 10 VDC
SIGNAL IS NOT USED. SEE THE OPERATORS MANUAL FOR RESISTOR
VALUES.
5 SEE INSERT “B” FOR RESISTOR CONNECTIONS TO PROGRAM AN
EXTERNAL CURRENT LIMIT SETPOINT WHEN 4 - 20 mA OR A 2 - 10 VDC
SIGNAL IS NOT USED. SEE THE OPERATORS MANUAL FOR RESISTOR
VALUES.
6 SEE INSERT “C” FOR CONTACTS (IN PLACE OF THE ZONE TEMP. SENSOR)
FOR OPTIONAL ICE MACHINE CONTROL - OPTION “A”.
7. 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)
O LOW AMBIENT LOCKOUT
S CHILLED WATER FLOW SWITCH (NOT REQUIRED FOR CHILLER
PROTECTION)
T REMOTE CLEAR LANGUAGE DISPLAY
WIRING AND CONTACT REQUIREMENTS:
20. 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.
21 FOR UNITS WITHOUT THE CONTROL POWER TRANSFORMER (1T1)
OPTION, THE CUSTOMER MUST PROVIDE CONTROL POWER OF 115 VAC,
60 HERTZ, SINGLE PHASE, 750 VA ON 130 THRU 215 TON UNITS. THE
CONTROL POWER TRANSFORMER (1T1) IS STANDARD ON 50 HERTZ
UNITS.
22 FOR ALL UNITS, THE HEAT TAPE MUST BE POWERED FROM A SEPARATE
CUSTOMER PROVIDED 115 VAC, 420 WATT SOURCE FOR 200/230/420/575
60 HZ UNITS: 220 VAC, 420 WATT SOURCE FOR 346/1380/415 50 HZ UNITS.
FOR THE OPTIONAL HEAT RECOVERY HEAT TAPE IS 420 WATTS.
23 CUSTOMER SUPPLIED CONTACTS MUST BE COMPATIBLE WITH DRY
CIRCUIT 12 VDC, 45 mA RESISTIVE LOAD. SILVER OR GOLD PLATED
CONTACTS ARE RECOMMENDED.
24 30 VOLT OR LESS CIRCUIT. DO NOT RUN IN CONDUIT WITH HIGHER
VOLTAGE CIRCUITS. USE #14-18 AWG. SEE SELECTION TABLE.
25 MINIMUM PILOT DUTY CONTACT RATING AT 115 VAC; 5.9 VA INRUSH, 1.3
VA SEALED.
26 FIELD WIRED ELECTRICAL LOADING IS NOT TO EXCEED THE FOLLOWING
RATINGS:
TERMINALS DEVICE VOLTAGE SEALED VA INRUSH VA
1U1-TB4-1,2 1U1K1,NO 115 180 1150*
1U1-TB4-3 1U1K1,NC 115 180 1150*
1U1-TB4-5,4 1U1K2,NO 115 180 1150*
1U1-TB4-6,7 1U1K3,NC 115 180 1150*
1U1-TB4-8,9 1U1K2,NO 115 250 1150*
1U1-TB4-10,11 1U1K3,NC 115 180 1150*
*STANDARD PILOT DUTY RATING (35% POWER FACTOR).
27 WHEN CUSTOMER INPUT IS REQUIRED, REMOVE JUMPER AND INSTALL
CUSTOMER WIRING.
28 CHILLED WATER PUMP CONTROL FROM TRANE UNIT UCM MODULE
CHILLED WATER PUMP IS REQUIRED TO OPERATE A MINIMUM OF 1
MINUTE AFTER A COMMAND TO TERMINATE CHILLER OPERATION (UCM
WILL PROVIDE THE DELAY CONTACTS). CHILLED WATER SYSTEM
DEMAND SWITCH (5S2) IS CONNECTED TO THE UCM EXTERNAL AUTO/
STOP INPUT. NOTE: DO NOT USE THE CHILLED WATER PUMP TO STOP
THE CHILLER.
29 AS SHIPPED 380/415 50 HZ VOLT UNIT TRANSFORMER 1T1-(OPTIONAL) IS
WIRED FOR 415 VOLT OPERATION. IF UNIT IS TO BE OPERATED ON A 380
VOLT POWER SUPPLY, RE-CONNECT AS SHOWN IN INSET “D”.
REPROGRAM “UNIT LINE VOLTAGE” IN SERVICE SETTING MENU OF
CLEAR LANGUAGE DISPLAY FROM 415 TO 380.
30 K1, K2, K3 RELAY OUTPUTS CAN BE PROGRAMMED TO PERFORM
ALTERNATE FUNCTIONS. SEE INSTALLATION, OPERATION AND
MAINTENANCE MANUAL FOR DETAILS. FUNCTION #1 IS SHOWN.