Summary
Overview
Work History
Education
Skills
Timeline
Generic

David Knotz

Phoenix,AZ

Summary

Experienced HVAC technician with a strong background in troubleshooting complex refrigeration systems and commercial HVAC. Proven ability to train and lead teams while ensuring customer satisfaction and operational efficiency.

Overview

21
21
years of professional experience

Work History

Service Technician

TDIndustries
Tempe, Arizona
06.2025 - Current
  • Low Temperature Refrigeration
  • Chiller Systems
  • Commercial HVAC

Service Technician

Ontario Refrigeration
Phoenix, Arizona
09.2022 - 06.2025
  • Preventative Maintenance
  • Boilers
  • All Types of HVAC and Refrigeration

Service Technician

Data Processing Air Corporation
Phoenix, Arizona
01.2020 - 09.2022
  • Liebert and Stulz Certified
  • Data Center Cooling Systems
  • Medical Process Chillers

Service Technician

Source Refrigeration & HVAC
Phoenix, Arizona
04.2008 - 01.2020
  • Supermarket Rack Refrigeration
  • Screw, Centrifugal Chillers
  • Cooling Tower and High Capacity Water Pumps
  • Variable Frequency Drives
  • Distech, Novar, Danfoss and Emerson EMS

Service Technician

ECI Control Systems
Tempe, Arizona
01.2005 - 04.2008
  • Low Temperature Refrigeration
  • Warehouse and Distribution HVAC
  • Johnson Controls EMS

Education

Some College (No Degree) - HVAC

The Refrigeration School Inc. (RSI)
Phoenix, AZ

Some College (No Degree) - Airframe and Powerplant

Embry Riddle
Glendale, AZ

Some College (No Degree) - Aerospace Powerplant Tech School

United States Air Force
Glendale, AZ

Skills

  • HVAC and Refrigeration Systems Troubleshooting
  • Customer Account Management
  • Team Leader on Projects
  • Provided On-The-Job Training For Fellow Technicians

Timeline

Service Technician

TDIndustries
06.2025 - Current

Service Technician

Ontario Refrigeration
09.2022 - 06.2025

Service Technician

Data Processing Air Corporation
01.2020 - 09.2022

Service Technician

Source Refrigeration & HVAC
04.2008 - 01.2020

Service Technician

ECI Control Systems
01.2005 - 04.2008

Some College (No Degree) - HVAC

The Refrigeration School Inc. (RSI)

Some College (No Degree) - Airframe and Powerplant

Embry Riddle

Some College (No Degree) - Aerospace Powerplant Tech School

United States Air Force
David Knotz