Operation

Operation with a conventional thermostat

The ReliaTel module has conventional thermostat connections as well as Zone Sensor Module connections. When a conventional thermostat is controlling the unit, operation differs as follows.

•Supply Air Tempering feature is not available. If outdoor air is being introduced through the equipment, discharge air temperature may be cold when not actively heating.

•Proportional Integral (PI) control is not available.

•Zone Sensor Diagnostics are only available on the RTRM module on the J6 terminals, instead of at the Zone Sensor in the space.

•Intelligent Fall-Back is not available. If a failure occurs in the device controlling the equipment, operation will cease.

•Heat Pump Smart Recovery and Smart Staging is not available. Heat Pump operation becomes more costly unless the generic control being applied can accomplish this.

•Remote Sensing Capabilities are not available on most mechanical thermostats.

•Space Temperature Averaging capabilities are not available on most mechanical thermostats.

•27½ to 50 VAV – Conventional thermostat input terminals are inactive.

•Built in Night Set Back and Unoccupied Functions function differently with a conventional mechanical thermostat.

•A built-in algorithm which allows for automatic reset of the discharge air temperature while economizing is not available.

The terminal strip for attaching the thermostat wires is located on the RTRM module in the control compartment.

The purpose of each terminal is discussed in the next section.

COM

T

X2

Y2

W2

G

W1/0

Y1

R

Customers occasionally require operation with a conventional thermostat rather than a zone sensor. In some cases there is a preference for a specific thermostat model, and in others there is reluctance to adopt newer technology that may not be as well understood as conventional thermostats. In addition, non-Trane Building Controllers typically provide an interface to HVAC equipment based on a conventional thermostat interface. Units applied with this type of controller need to accept conventional thermostat inputs.

Conventional thermostat signals represent direct calls for unit functions. In their simplest applications, thermostat contacts directly control contactors or other load switching devices. This function provides inputs for the thermostat signals and processing to enhance reliability and performance. Compressor protection and reliability enhancement functions (HPC, LPC, Minimum On/Off timers, etc.). All operate the same whether applied with zone sensors or a conventional thermostat.

Logic is also provided to cause appropriate unit functions when inappropriate thermostat signals are provided. Simultaneous calls for heating and cooling will be ignored, and the fan will be turned on with a call for heating or cooling even if the fan request is not detected.

If the thermostat is immediately changed from a heating to a cooling call, or vice versa, there will be a five minute delay before the new call will initiate.

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RT-SVX19A-E4

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Trane RT-SVX19A-E4 manual Operation with a conventional thermostat
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RT-SVX19A-E4 specifications

The Trane RT-SVX19A-E4 is a groundbreaking rooftop unit designed for versatile commercial heating and cooling applications. This model stands out for its innovative technology and robust features, making it a preferred choice for many businesses seeking efficient climate control solutions.

One of the primary characteristics of the RT-SVX19A-E4 is its exceptional energy efficiency. It utilizes advanced variable-speed technology, allowing it to adjust the compressor's output based on real-time demand. This not only reduces energy consumption significantly but also provides more accurate temperature control, enhancing overall comfort within the space. The unit is designed with high-efficiency fan motors and optimized heat exchangers, which contribute to its impressive Seasonal Energy Efficiency Ratio (SEER) and Energy Efficiency Ratio (EER) ratings.

The Trane RT-SVX19A-E4 also features a robust and durable design, built to withstand a variety of weather conditions. Its all-weather cabinet protects the internal components from environmental stresses, ensuring longevity and reliable performance. The unit is equipped with corrosion-resistant materials that enhance its durability, making it suitable for both coastal and urban environments.

Another notable feature is its advanced control system. The RT-SVX19A-E4 comes with Trane's IntelliPak controls, which provide users with precise monitoring and management capabilities. This smart control system enables remote access via internet connectivity, allowing facility managers to monitor performance, adjust settings, and diagnose issues in real-time, improving operational efficiency and reducing maintenance costs.

Additionally, the RT-SVX19A-E4 offers a range of customization options. It can be tailored to meet specific operational needs, with various configurations available for air flow, heating, and cooling needs. This flexibility ensures organizations can find a solution that best fits their requirements, whether it be for an office building, retail space, or industrial facility.

In conclusion, the Trane RT-SVX19A-E4 represents a significant advancement in rooftop HVAC technology, combining energy efficiency, durability, and intelligent controls. Its ability to adapt to varying demands, coupled with customizable options, makes it an excellent investment for businesses looking to enhance their indoor climate while minimizing energy expenses.
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