Defrost in Commercial Refrigeration w/ Dick Wirz - HVAC School

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Defrost in Commercial Refrigeration w/ Dick Wirz

February 1, 2018

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Author of commercial refrigeration for air conditioning technicians, Dick Wirz talks to us about refrigerator and freezer defrost strategies.

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How to Evacuate an AC system, Full Vacuum Procedure

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HVAC School – For Techs, By Techs

HVAC School – For Techs, By Techs

Real training for HVAC ( Heating, Ventilation, Air Conditioning and Refrigeration) Technicians. Including recorded tech training, interviews, diagnostics and general conversations about the trade.

Good QC, Startup, and Punchout Processes

byBryan Orr

In this episode, Bryan is joined by guests Jacob and JD to discuss quality control (QC), punch out procedures, and best practices in HVAC installation and service. The conversation delves deep into the various aspects of maintaining high standards in workmanship, from aesthetic considerations to technical performance metrics that affect system longevity.

The discussion begins with an exploration of workmanship quality and how to instill pride in work among team members. The guests share insights about the importance of company culture in maintaining high standards, emphasizing that quality control isn’t just about catching mistakes but about fostering an environment where everyone takes ownership of their work. They discuss how photo documentation can be a powerful tool for quality control, allowing team members to review work remotely and catch issues that might be missed in the field.

The conversation then shifts to the more technical aspects of quality control, particularly focusing on procedures that affect system longevity but might not be immediately visible to clients. This includes proper brazing techniques, pulling adequate vacuums, and proper system charging. The guests emphasize the importance of having a culture where team members hold each other accountable for following proper procedures, even when cutting corners might be tempting. The episode concludes with a detailed discussion about working with inspectors and handling code compliance, offering practical advice for maintaining good relationships with authorities having jurisdiction (AHJ) while ensuring work meets all necessary standards.

Key Topics Covered:

Importance of workmanship appearance and aesthetic quality
Role of company culture in maintaining high standards
Using photo documentation for quality control
Technical procedures that affect system longevity
Methods for ensuring proper installation procedures are followed
Dealing with inspectors and code compliance
Characteristics of good punch-out personnel
Balance between production speed and quality
Importance of praise and constructive criticism in quality control
Strategies for reducing punch list items
Building relationships with inspectors
Handling code interpretation disagreements
Value of being a trades generalist for punch work
Impact of workmanship on inspector relationships

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