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RLC-PRC005-E4
Notes
1 Refer to Power Wiring Diagram
2 Refer to Control Wiring Diagram
3 Refer to Fans Power Wiring
Diagram
4 Remove the Jumper Wire When
Using the Remote Contact
5 Not Supplied with Night Noise
Setback (Option 19)
6 Supplied When PED Approval
7 Factory Connected
10 Valid for RTAC 155-170-185-200
11 Valid for RTAC 185-200
12 Valid for RTAC 170 - 185 - 200
13 Valid for RTAC 200
14 Valid for RTAC 130- 140-155-170-
185-200
15 Valid for RTAC 140- 155- 170-
185- 200
Customer Inputs
E1 External Current Limit Set Point
E2 External Chilled-Water Set Point
E4 Ice-Making Enable Customer
Outputs
S2 Programmable Relays
S8 Ice-Making Enable
S10 Tracer™ Communication Link
Trane Wiring
Customer Wiring
Component Identification
Ex 1K20-1
Index
Attribute
Designation
Location
Location Numbering
Nothing = Control Panel Wiring
1 Control Panel Power Wiring
2 Compressor
3 Oil Circuit
4 Fans
5 Heat Exchanger
6 Customer Wiring
7 Miscellaneous
Typical Wiring Diagram
RTAC 120-200
Legend
Item Designation
A2 Dual Analog Input/Output
Module
A3 Fans Inverter Interface Module
A4 4 Relays Output Module
A5 2 Relays Output Module
A6 Dual Low Voltage Binary Input
Module
A7 Dual High Voltage Binary Input
Module
A8 Dual Triac Output Module
A9 Communication Module
A10 Power Supply Module
A14 Starter Module
A53 Local Human Interface
A54 Remote Human Interface
A55 IPC Buffer
K43 6S43 Relay
Q2 Circuit Breaker
1B52 Evaporator Heater Thermostat
1 F3 1T3 Protection Fuse
1F25 Compressor Fuse
1F45 Fan Motor Fuse
1K4 Protection Relay
1K21 Compressor Transition
Contactor
1K22 Compressor Line
Contactor
1K23 Star Compressor Contactor
1K24 Delta Compressor Starter
1K40 Fan Contactor
1Q5 Circuit Breaker
1Q10 Disconnect Switch
1Q45 Condenser Fan Motor Circuit
Breaker
1R20 Compressor Transition Resistors
1T2 Control Power Transformer
1T3 Over/Undervoltage Transformer
1T10 to 1T20 Current Transformers
1X Control Terminal
1X20 Compressor Power Terminal
2M20 Compressor Motor
2Y21 Compressor Unloading
Solenoid Valve
2Y22 Compressor Loading Solenoid
Valve
2Y23 Compressor Unloading Step
Solenoid Valve
3B30 Oil Control Sensor
3E30 Compressor Oil Heater
3E31 Oil Separator Heater
3R30 Oil Temperature Sensor
3Y30 Oil Line Solenoid Valve
4M40 Condenser Fan Motor
5B23 Low Pressure Control
5B51 High Pressure Control
5B53 Evaporator Refrigerant Level
Control
5B56 High Pressure Transducer
5E51 Evaporator Heater
5R3 Ambient Air Sensor
5R51 Leaving-Evaporator-Water
Temperature Sensor
5R52 Entering-Evaporator-Water
Temperature Sensor
5Y53 Electronic Expansion Valve
6K51 Chilled-water Pump Contactor
6M51 Chilled-Water Pump Motor
6Q... Circuit Breaker
6S1 Chiller On/Off Switch
6S3 Stop/Manual Reset Switch
6S6 Circuit 1 Interlock Switch
6S7 Circuit 2 Interlock Switch
6S43 Time Clock Contact
6S51 Chilled-water Pump On/Off
Switch
6S55 Ice-making Enable
6S56 Chilled-water Flow Switch
6X Customer Wiring Terminal
Optional
Item Designation (circled items)
B Main Terminal Block and Fuses
E Unit Disconnect Switch
J Over/Undervoltage Transformer
K Ground Fault Detection Relay
R Evaporator Heater Thermostat
9 Low-Ambient Option
11 Communication Card
15 Remote Operator Interface
19 Night Noise Setback
20 Ice-Making Controls Card
22 External Setpoints Input Card
24 Evaporator Heaters