Trane WCY048G1, WCY042G1, WCY036G1, WCY030G1, WCY060G1, WCY024G1 manual WCY-G Field Wiring Diagram

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After all electrical wiring is complete, set the thermostat system switch in the OFF position so that the compressor will not run and then apply power by closing the system main disconnect switch. This will activate the compressor sump heat. Do not change the

Thermostat System Switch until power has been applied long enough to evaporate any liquid R-22 in the compressor. It is recommended that the sump heater be energized for eight (8) hours prior to starting.

r

WCY-G FIELD WIRING DIAGRAM

NOTES:

1. FUSED DISCONNECT SIZE, POWER WIRING AND GROUNDING OF EQUIPMENT MUST COMPLY WITH CODES.

2. BE SURE POWER SUPPLY AGREES WITH EQUIPMENT AND HEATER NAMEPLATE.

3. LOW VOLTAGE WIRING TO BE 18 AWG MINIMUM CONDUCTOR.

4. SEE HEATER NAMEPLATE FOR CURRENT RATING OF HEATER USED.

5. SEE UNIT AND HEATER DIAGRAM FOR ELECTRICAL CONNECTION DETAILS.

6. IF ELECTRIC HEATER ACCESSORY IS NOT INSTALLED OMIT THE ELECTRIC HEATER, ASSOCIATED POWER WIRES AND THE ‘W’ AND ‘X2’ THERMOSTAT WIRES.

7. FIG. 3 DEMONSTRATES CONNECTION OF THE OUTDOOR THERMOSTAT ACCESSORY ONLY. FOR FURTHER UNIT CONNECTION DETAILS REFER TO THE OTHER FIGURES.

8. THE 41A(BR) WIRE IS FIRST STAGE ELECTRIC HEAT. IF THE ELECTRIC HEATER ACCESSORY HAS TWO HEATING STAGES THE 41C(BR) WIRE IS SECOND STAGE ELECTRIC HEAT.

9. WHEN THE BAYECON054A OR –055A ECONOMIZER IS INSTALLED THE BAYRLAY003 RELAY ACCESSORY KIT IS REQUIRED TO INTERFACE THE ECONOMIZER TO THE HEAT PUMP FOR PROPER SYSTEM OPERATION. WHEN THE BAYECON054B OR –055B OR 073A ECONOMIZER IS INSTALLED, THE BAYRLAY004A RELAY ACCESSORY KIT IS REQUIRED TO INTERFACE THE ECONOMIZER TO THE HEAT PUMP FOR PROPER SYSTEM OPERATION.

10. THE BAYSTAT033A OUTDOOR THERMOSTAT ACCESSORY KIT CONTAINS A THERMOSTAT AND A RELAY. THE RELAY IS NOT REQUIRED TO BE USED IN THIS APPLICATION.

From Dwg. 756978 Rev. 5

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Contents Installation Operation Maintenance Inspection General InformationConverting Horizontal to Downflow Typical Rooftop Installation with BAYCURB030ADimensional Data WCY024-060G Outline Front Locations and Recommendations Clearances InstallationUnit Support Location and ClearancesOutdoor Coil END of Unit Typical Rooftop Applications with Frame Rooftop -- UnitsTypical Rooftop Application with Frame Ground Level -- Horizontal Units DuctworkTypical Ground Level Application Attaching Downflow Ductwork to Roof CurbDuct Attachment Methods Condensate Drain PipingElectrical Wiring Filter InstallationWCY-G Field Wiring Diagram Start UP ICM FAN Control Sequence of OperationDemand Defrost System Fault DetectionDefrost Control Demand Defrost Control Checkout Symptoms Checks YES/NO ActionsMaintenance Maintenance section Limited Warranty High Efficiency Heat Pump WCZ, WCY and WCXTrane Company

WCY036G1, WCY042G1, WCY060G1, WCY048G1, WCY030G1 specifications

The Trane WCY series is a line of water-cooled chillers that exemplify innovation and efficiency in commercial HVAC systems. Models such as WCY024G1, WCY030G1, WCY042G1, WCY048G1, and WCY060G1 are designed to meet diverse cooling needs while maintaining energy efficiency and reliability.

One of the standout features of the WCY series is its use of advanced chiller technology, which incorporates a reliable, scroll compressor. These compressors are known for their durability and efficiency, allowing the chillers to provide cooling capacity ranging from 24 to 60 tons, making them suitable for various building sizes and applications. The efficient design of these compressors contributes to lower energy consumption, leading to potential savings on operational costs.

Another significant characteristic of the Trane WCY series is its use of microchannel heat exchangers. These heat exchangers feature a compact design that minimizes refrigerant charge and enhances heat transfer performance. The microchannel technology not only improves overall efficiency, but it also contributes to a smaller physical footprint for the units, allowing for flexible installation options in tight spaces.

The chillers are equipped with advanced controls that optimize performance, enabling users to easily monitor and adjust system operations through a user-friendly interface. The integration of Trane's Tracer™ control technology enhances operational efficiency by providing real-time data and analytics, which can inform maintenance needs and system adjustments.

In addition to these features, the WCY series includes robust construction that ensures reliability in diverse environments. The units are designed to withstand various weather conditions and are built with corrosion-resistant materials to enhance durability.

Furthermore, the Trane WCY chillers are designed with sustainability in mind. They utilize refrigerants with low global warming potential (GWP), aligning with contemporary environmental standards and enhancing the overall sustainability of building operations.

In summary, the Trane WCY024G1, WCY030G1, WCY048G1, WCY060G1, and WCY042G1 chillers represent cutting-edge technology in water-cooled cooling solutions. With their efficient compressors, innovative heat exchange design, advanced controls, and commitment to sustainability, these chillers are an excellent choice for commercial buildings seeking reliable and efficient cooling solutions. Whether for new installations or retrofits, the Trane WCY series offers versatility and performance that meets the demands of modern HVAC applications.
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