Technical Support Role – Required Capabilities

HVAC & Chiller Expertise:

• Practical work experience with HVAC system with various York chiller models, primarily YK, YVAA, YMC2, and YZ chillers.
• Hands on Experience in commissioning of numerous chillers like Mag bearing, Cetri, Screw, Scroll with different type of refrigerant R-22, R-134a, R407,R123, R1233ZD, R513A
• Hands on Experience in conducting the chiller PM activity for various model chillers.
• Good knowledge on AHUs, FCU, Cooling towers, water Pumps, EC fans used in the HVAC system.
• Capable to handle the critical issues by taking quick appropriate decision with action plans to resolve the issues.

Electrical & Electronics Expertise:

• Ability to test and diagnose power electronic components such as Diode,SCRs, IGBTs, capacitors, and inductors.
• Able to understand the Circuit Breaker settings and provide the cable sizing
• Understand the root cause of the power electronic components failure and be able to prepare the root cause analysis for the failure.
• Able to test and identify defective components at the PCB level in advanced multilayer electronic boards
• Able to troubleshoot the various types of motor used in the chiller application and AHUs
• Able to understand the various types of control logic used in chiller microcontrollers.
• Capable of programming and debugging software for microprocessor-based controllers and PLC-based controllers

VSD starter & Troubleshooting:

• In-depth understanding of Variable Speed Drive (VSD) starter application, benefits in chiller, terminology and working principles.
• Skilled in troubleshooting York starter models used in chillers, including D-Drive, Vyper, Hyper, and Python drives.
• Knowing the importance of the Harmonic Filter in the VSD application and its function and troubleshooting.

Refrigeration System and Performance testing Knowledge:

• Strong understanding of refrigeration systems and capability to troubleshoot issues using operating data, History data or SD card data from chillers.
• Able to interpret and analyze Pressure-Enthalpy (P–H) diagrams to evaluate refrigeration cycle performance, identify system inefficiencies, and assist in troubleshooting issues related to compressors, evaporators, and condensers
• Chiller performance testing and field troubleshooting of performance related issues.
• Understanding of psychrometry and its application in the HVAC industry

Power Quality Analysis:

• Ability to connect power analyzers to the chiller’s input power supply and interpret power quality parameters based on site data.
• Capable of preparing the Power analyzer report to share with internal and external customers.

Predictive Maintenance Analysis:

• Competence in interpreting predictive analysis reports such as vibration analysis, oil analysis, thermography and Eddy current test and making informed decisions.

Frontline Engineer Support:

• Provide day-to-day technical support to frontline engineers, primarily on starters and optiview control panels, system-related issues, via calls, emails, or Teams chat.
• Need to visit the site location if in case major issues and Engineer need your support
• Ensuring no repeated failure issues in chillers.
• Preparing check lists, log Sheets, SOP, critical spare list,
• Expert in the Ms Excel, Word, PPTs
• Conducting Technical Trainings to the Service team on various chillers products
• Conducting Operation Training to the Customer

Managing Internal and External Customers,

• Managing internal and external customer during the critical escalations.
• Internal and External Customer Satisfaction with solutions and Support we provide.

Electrical Diagram Interpretation:

• Ability to read and understand the Electrical drawing and wiring diagrams for chiller plant and various chiller models, including starters and control panels.

BAS and Communication Protocols:

• Familiarity with Building Automation System (BAS) outputs and tools like Modscan, ability to interpret SC-EQ outputs, and connect laptops for diagnostics.