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. . . commitment unique in our industry. Upgrades occur approximately on an annual basis as Siemens issues new releases. This does not include computer workstation upgrades, which may need to be done occasionally. D Computer Workstation & Insight Software Upgrade Option: Workstation technology (personal computers, monitors, printers. ,,) becomes obsolete every few years. This upgrade extends the life of your HVAC control system investment without using capital investment dollars to keep your workstation and software technology current. As part of this service, we will replace the workstation every three (3) years and the Insight software as Siemens issues new releases within the term of this contract. Replacement technology will conform to our current standard configuration based on your existing system's software, firmware, and hardware. This option provides one new computer per three year term. Technical Support Services ISI Operator Coaching: Through our individual operator coaching, we will review and reinforce learned skills, leading to greater utilization of your HVAC equipment and control systems in your facility. Our system experts assist your operators in identifying, verifying and resolving problems found in executing tasks. During the coaching sessions, we can address log book issues, assist your operators in becoming more self sufficient, and tailor HVAC control system applications to the needs of your facility and to your operators' specific job responsibilities. ISI Automation Controls Analysis & Optimization: Automation controls can drift out of calibration with changes in mechanical component performance, building use, and climatic conditions. We wiil analyze and optimize automation controls in accordance with a program of standard routines, including preventive maintenance, as determined by our experience, equipment application and location. Automation Controls Analysis & Optimization will extend equipment life, reduce energy consumption, and reduce the risk of costly and disruptive breakdowns. The List of Maintained Equipment details the equipment included under this service. ISI Control Loop Analysis & Optimization: Control devices, such as valves, dampers, actuators, etc., by their nature .Q.d!Lout of calibration with changes in mechanical efficiency, building use, and climatic conditions. Through Control Loop Analysis & Optimization we ensure the control loops throughout your HVAC control system experience minimized overshooting and oscillatory behavior. You will benefit from lower energy consumption through more efficient equipment usage. You will realize a more comfortable and productive environment. ISI Network Analysis & Optimization: Through Network Analysis & Optimization, we ensure reliable and optimized communication throughout your HVAC control system's building level network data trunks. You will have higher data network up-time, and when infrequent problems do occur, you will benefit from faster problem resolution. Using our network performance diagnostic technologies, our proactive calibration and tuning of the data network analyzes variables impacting network performance. These variabies include node tables, token passes, turn speed, change of vaiues over the network, unresolved points, and overall operation. ISI Software Analysis & Optimization: Software Analysis & Optimization ensures that HVAC control system application programming changes made by your staff are clear and consistent. We wiil address any programming errors, failed points, points in alarm, or points in operator priority. This will increase system efficiency, assure compliance to specified conditions, and reduce the risk of costly and disruptive system problems. Cass Co. Vector Control Preventive Maintenance Agreement 7/14/06 Page 3