Machine Protection

and Adaptive

Control

High Evaporator Leaving Water Temperature Cutout

(Main Processor Software Revision 6.0 and higher)

A High Evaporator Water Temperature Diagnostic was implemented that will turn off the Evaporator Water pump relay if the relay is being forced on due to a Loss of Evaporator Water Flow Lost diagnostic (MAR Diagnostic) and the Evaporator Leaving Water Temperature exceeds an adjustable High Evaporator Water Temperature Cutout for 15 continuous seconds. The High Evaporator Water Temperature diagnostic is an immediate shutdown and is nonlatching. The diagnostic will auto reset and the pump will return to normal control when the temperature falls 5°F below the cutout setting. High Evaporator Water Temperature Cutout is a setpoint that is adjustable in TechView from 80°F and 150°F. The default is 105°F.

Low Refrigerant Temperature Cutout

The purpose of the low evaporator refrigerant temperature protection is to prevent water in the evaporator from freezing. When the Low Evaporator Refrigerant Temperature Cutout (LRTC) trip point is violated, a latching diagnostic indicating the condition is displayed. The Low Evaporator Refrigerant Temperature Diagnostic is active in both the Running and Stopped modes.

The Low Evaporator Refrigerant Cutout Setpoint is factory set to 36°F. This can be altered via the service tool. A Service Tool adjustable

setpoint that should be based on the percentage of antifreeze used in the customer’s water loop. The Service tool will display a warning message such as “Warning: Adequate Antifreeze required” for any Evaporator Refrigerant Temperature Cutout below 28°F and any Leaving Water Temperature Cutout below 35°F.

The percent of antifreeze required is a function of the leaving water temperature setpoint and the worse case (lowest permitted water flow) approach temperatures of the chiller’s evaporator design.

Head Relief Relay (See page 53 also)

Surge, condenser limit, and certain conditions on ice mode will energize the head relief relay. Note: There is a TechView programmable head relief relay filter times setpoint. The default is one minute.

CVHE-SVU01E-EN

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Trane CVHE-SVU01E-ENX39640712050 manual Low Refrigerant Temperature Cutout, Main Processor Software Revision 6.0 and higher

CVHE-SVU01E-ENX39640712050 specifications

The Trane CVHE-SVU01E-ENX39640712050 is a high-efficiency centrifugal chiller designed for commercial and industrial applications. This state-of-the-art unit is engineered to provide reliable cooling performance, energy efficiency, and optimized operational flexibility. It is particularly suitable for large-scale facilities that require significant cooling capacity and robust performance under varying load conditions.

One of the most notable features of the CVHE-SVU01E series is its advanced variable speed drive technology. This technology enables the chiller to adjust its speed according to the cooling demands of the facility, resulting in substantial energy savings. By operating at optimal speeds, this unit reduces power consumption and enhances overall efficiency. This is noteworthy in the context of rising energy costs and increasing sustainability demands across various industries.

Moreover, the CVHE-SVU01E is equipped with Trane’s proprietary Compliant Scroll compressor technology. This innovative compressor design minimizes mechanical losses and increases the efficiency of the chiller system. Additionally, the compressor is specifically designed to handle varying refrigerant flow rates, allowing the chiller to maintain performance even when faced with fluctuating conditions.

Another significant characteristic of this chiller model is its use of environmentally friendly refrigerants, aligning with global regulations aimed at reducing greenhouse gas emissions. This commitment to sustainability ensures that the CVHE-SVU01E not only provides excellent cooling performance but also adheres to contemporary environmental standards.

The unit utilizes an advanced control system that simplifies operation and enhances troubleshooting capabilities. The intuitive interface allows facility managers to monitor performance metrics, optimize operation schedules, and conduct remote diagnostics, significantly reducing costly downtime and maintenance efforts.

Furthermore, the compact and modular design of the CVHE-SVU01E makes it easy to install in various settings. Its durability is ensured through the use of high-quality materials and components, designed to withstand the rigors of demanding environments. With reduced maintenance requirements, facility operators can focus on core business functions without frequent interruptions.

In summary, the Trane CVHE-SVU01E-ENX39640712050 combines cutting-edge technologies and features to deliver exceptional performance, efficiency, and reliability in commercial cooling applications. Its advanced design contributes to reduced energy costs, minimal environmental impact, and greater operational flexibility, making it an excellent choice for organizations seeking sustainable and efficient cooling solutions.