Summary
Overview
Work History
Education
Skills
Timeline
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Oscar Hernandez

Summary

Results-driven young Ammonia Refrigeration Operator with extensive experience at Wawona Frozen Foods. That has created a continued learning mind for troubleshooting and preventive maintenance, enhancing equipment lifespan and operational efficiency.

Overview

6
6
years of professional experience

Work History

Ammonia Service Technician

Ross & Sons Inc.
01.2025 - Current
  • Inspected equipment to diagnose operational issues.
  • Diagnosed motor and motor electrical controls equipment to rule bad motors or electrical equipment on compressor packages and cold storages.
  • Swapped out Mechanical Seals

Ammonia Refrigeration Operator

Wawona Frozen Foods
04.2019 - 01.2025
  • Improved equipment lifespan with timely preventive maintenance, reducing downtime and repair expenses.
  • Maintained safety standards by using appropriate protective gear and adhering to best practices.
  • Optimized refrigeration system efficiency by conducting routine maintenance and inspections.
  • Increased system stability through rigorous monitoring of pressure levels, alarms, and other key indicators during daily operations.
  • Adjusted freezer speed and air intake to obtain desired product consistency. (IQFs)
  • Isolated specific parts of an ammonia system to perform pumps downs, blow downs, or evacuations to prepare equipment for servicing.
  • Recorded temperatures, material amounts, and test results on report forms.
  • Troubleshooting of compressor package panels and their related package instruments to get compressors back into operation (G Force panels, M&M panels, and Frick panels).
  • Trouble shooting of Cold Storage electrical controls to identify basic instrumentation faulty devices such as temperature sensors, pressure transducers, solenoids, etc.

Education

Certificate - Industrial Ammonia Refrigeration

Garden City Ammonia Program
Garden City, KS

Skills

  • Troubleshooting skills
  • Equipment maintenance
  • Preventive Maintenance
  • Installation and repair
  • Proper pump down and blow down procedure to safely remove pressure from ammonia related equipment needing service or repair
  • comfortable operating man lifts and scissor
  • basic electrical diagnosing able to get through schematics (P&IDs)

Timeline

Ammonia Service Technician

Ross & Sons Inc.
01.2025 - Current

Ammonia Refrigeration Operator

Wawona Frozen Foods
04.2019 - 01.2025

Certificate - Industrial Ammonia Refrigeration

Garden City Ammonia Program

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Oscar Hernandez