Trane WCY036G1, WCY042G1, WCY048G1, WCY030G1, WCY060G1, WCY024G1 manual Start UP

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START - UP

PRE-START QUICK CHECKLIST

●Is the unit properly located and level with the proper clearance? See Figure 5.

●Is the duct work correctly sized, run, taped, insulated, and weatherproofed with proper unit arrangement. See Ductwork Installation section.

●Is the condensate line properly sized, run, trapped, and pitched?

●Is the filter of the correct size and number? Is it clean and in place?

●Is the wiring properly sized and run according to the unit wiring diagram?

●Are all the wiring connections, including those in the unit, tight?

●Has the unit been properly grounded and fused with the recom- mended fuse size? See Wiring Data.

●Is the thermostat level, correctly wired, well located, and set for the proper heat anticipation?

●Have the air conditioning systems been checked at the service ports for charge and leak tested if necessary?

●Do the condenser fan and indoor blower turn free without rubbing, and are they tight on the shafts?

●Has the indoor blower speed been determined and the proper speed been set? See the Unit Wiring Diagram.

●Has all work been done in accordance with applicable local and national codes?

●Are all covers and access panels in place to prevent air loss and safety hazards?

STARTING THE UNIT IN THE COOLING MODE

CAUTION: Before starting the system on the cooling cycle, turn the thermostat switch to OFF and close the unit disconnect switch. This procedure energizes the compressor crankcase heater, vaporizing any liquid refrigerant in the crankcase. This is a precaution against foaming at startup which could damage the compressor bearings.

Allow the heater to operate a minimum of eight (8) hours.

NOTE: See the section on "Sequence of Operation" for a descrip- tion of the cooling operating sequence.

▲WARNING: DO NOT OPERATE THE UNIT

WITHOUT THE EVAPORATOR FAN ACCESS PANEL IN PLACE. REINSTALL THE ACCESS PANEL AFTER PERFORMING ANY MAINTENANCE PROCEDURES ON THE FAN. OPERATING THE UNIT WITHOUT THE ACCESS PANEL PROPERLY INSTALLED MAY RESULT IN SEVERE PERSONAL INJURY OR DEATH.

To start the unit in the cooling mode, set the thermostat system switch to COOL and move the thermostat COOL indicator to a setting below room temperature. The condenser (outdoor) fan motor compressor and evaporator (indoor) fan motor will operate automatically.

OPERATING PRESSURES

After the unit has operated in the cooling mode for a short period of time, install pressure gauges on the gauge ports of the discharge and suction line valves. Check the suction and discharge pressures and compare them to the normal operating pressures provided in the unit's SERVICE FACTS.

NOTE: Do not use the pressures from the unit's SERVICE FACTS to determine the unit refrigerant charge. The correct charge is shown on the unit nameplate. To charge the system accurately, weigh in tIhe charge according to the unit nameplate.

VOLTAGE

With the compressor operating, check the line voltage at the unit. The voltage should be within the range shown on the unit name- plate. If low voltage is encountered, check the size and length of the supply line from the main disconnect to the unit. The line may be undersized for the length of the run.

COOLING SHUT DOWN

Place the system selector in the OFF position or reset thermostat at a setting above room temperature.

Do not de-energize the main power disconnect except when unit it to be serviced. Power is required to keep the heat pump compres- sor warm and boil off refrigerant in the compressor.

STARTING THE UNIT IN THE HEATING MODE

NOTE: See the section on "Sequence of Operation" for a descrip- tion of the heat pump heating operating sequence.

Check to make sure all grilles an registers are open an all unit access doors are closed before start-up.

Slowly set the thermostat above rom temperature until achieving a first stage call for heat and place the fan switch in the AUTO or ON position.

HEATING SHUT-DOWN

Place the system selector switch at OFF or place the heating selector lever at a setting below room temperature.

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Contents Installation Operation Maintenance General Information InspectionTypical Rooftop Installation with BAYCURB030A Converting Horizontal to DownflowDimensional Data WCY024-060G Outline Front Locations and Recommendations Unit Support InstallationClearances Location and ClearancesOutdoor Coil END of Unit Typical Rooftop Application with Frame Rooftop -- UnitsTypical Rooftop Applications with Frame Typical Ground Level Application DuctworkGround Level -- Horizontal Units Attaching Downflow Ductwork to Roof CurbCondensate Drain Piping Duct Attachment MethodsFilter Installation Electrical WiringWCY-G Field Wiring Diagram Start UP Sequence of Operation ICM FAN ControlDefrost Control Fault DetectionDemand Defrost System Symptoms Checks YES/NO Actions Demand Defrost Control CheckoutMaintenance Limited Warranty High Efficiency Heat Pump WCZ, WCY and WCX Maintenance sectionTrane 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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