System Start-Up

3.Plot this value onto the appropriate component pressure drop curve that shipped with the Air Handling equipment. Use the data to assist in calculating a new fan drive if the CFM is not at design specifications.

4.Plug the holes after the proper CFM has been established.

Turn the 115 volt control circuit switch 1S2 to the “OFF” position and open the field provided or optional factory mounted disconnect switch.

After all adjustments have been made, proceed through the following procedures.

Compressor Start-Up (All Systems)

CAUTION

Compressor Damage!

Do not allow liquid refrigerant to enter the suction line. Excessive liquid accumulation in the liquid lines may result in compressor damage.

1.Before closing the field provided or optional factory mounted disconnect switch at the unit, ensure that the compressor discharge service valve and the liquid line service valve for each circuit is back seated.

COMPRESSOR SERVICE VALVES MUST BE FULLY OPENED BEFORE START-UP (SUCTION, DISCHARGE, LIQUID LINE, AND OIL LINE).

2.If the system has been previously charged before starting, disable the compressor(s) by unplugging the reset relay for each circuit. Refer to the unit-wiring diagram that sipped with the unit. Turn the main power disconnect to the “On” position and allow the crankcase heater to operate a minimum of 8 hours before continuing.

NOTICE

Compressor Damage could occur if the crankcase heater is not allowed to operate the minimum 8 hours before starting the compressor(s).

3.Attach a set of service gauges onto the suction and discharge gauge ports for each circuit.

4.Charge liquid refrigerant into the liquid line of each refrigerant circuit with the required amount of R-22. Refrigerant should be charged into the system by weight. Use an accurate scale or a charging cylinder to monitor the amount of refrigerant entering the system. Refer to Table 14 for the required amount of refrigerant for the condensing unit.

If the pressure within the system equalizes with the pressure in the charging cylinder before charging is completed, complete the process by charging into the suction (low) side of the system after the system has been started.

Table 15 gives the minimum starting temperatures for both “Standard” & “Low” Ambient units.

Do not attempt to charge the system with the low ambient dampers and/or hot gas bypass operating (if applicable). Disable the low ambient dampers in the “Open” position (refer to the “Low Ambient Damper Adjustment” section) and de-energize the hot gas bypass solenoid valves before proceeding.

5.On units with dual circuits, start only one circuit at a time. To disable the compressors, unplug the appropriate lockout relay inside the unit control panel. Refer to Table 16 for the compressor sequencing and Figure 45 for their location.

6.Close the “High Side” valve on the manifold gauge set.

7.Set the “System” selection switch to the “Cool” position

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SS-SVX09A-EN

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Trane RAUC-C50, RAUC-C30, RAUC-C60, RAUC-C20, RAUC-C40, RAUC-C25 manual Compressor Start-Up All Systems Compressor Damage
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RAUC-C20, RAUC-C40, RAUC-C25, RAUC-C30, RAUC-C60 specifications

Trane, a leader in HVAC solutions, offers innovative air conditioning units designed for superior performance and energy efficiency. Among their advanced products are the Trane RAUC-C30, RAUC-C20, RAUC-C40, RAUC-C60, and RAUC-C50, which cater to various cooling and heating needs in residential and commercial applications.

The RAUC-C series showcases cutting-edge technology, ensuring effective climate control while minimizing energy consumption. These units are equipped with variable-speed compressors, allowing for precise cooling capacities and reduced noise levels during operation. This feature ensures that users can enjoy optimal comfort without the disruptive noise often associated with traditional HVAC systems.

One of the standout technologies used in the RAUC-C series is Trane’s advanced inverter technology. This system intelligently adjusts the compressor speed based on real-time cooling demands, enhancing efficiency and prolonging the unit's lifespan. Additionally, the units come with high SEER (Seasonal Energy Efficiency Ratio) ratings, making them an excellent choice for those looking to lower their energy bills while maintaining a comfortable indoor environment.

The RAUC-C series units are designed with durability in mind. Constructed with robust materials, these air conditioning systems are built to withstand varying weather conditions. Their compact and lightweight design makes installation straightforward, and they can fit seamlessly into a variety of spaces, from residential homes to commercial buildings.

Another key characteristic of the RAUC-C series is their eco-friendly refrigerant, which meets strict environmental regulations. This not only supports sustainability efforts but also ensures efficient cooling performance. Furthermore, their smart technology capabilities enable integration with modern smart home systems, allowing users to manage their cooling settings remotely for added convenience.

Trane's focus on user-friendly interfaces makes these units easy to operate. The intuitive control systems allow users to customize their cooling preferences easily, providing flexibility to adapt to individual comfort needs.

Overall, the Trane RAUC-C30, RAUC-C20, RAUC-C40, RAUC-C60, and RAUC-C50 stand out for their energy efficiency, advanced technology, durability, and user-focused design. These features make them reliable choices for anyone seeking efficient and effective heating and cooling solutions.
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