What a TXV Does (and why techs need to stop replacing them with a piston)

April 30, 2021

Craig from AC Service tech joins us and shares some of his knowledge on TXVs and shares his concern about techs swapping them with pistons.

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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.

In this episode of the HVAC School podcast, Bryan shares his “Manufacturer Responsibility Manifesto,” a document he wrote over two years ago but held back from publishing until now. The manifesto addresses growing concerns about the burden being placed on HVAC contractors, particularly smaller businesses, due to manufacturing quality issues and warranty policies.

The industry has undergone significant changes since the 1990s, including stricter refrigerant regulations and an increase in parts failures. While manufacturers offer longer warranty periods now than in the past (often 10+ years compared to 3-5 years previously), these warranties often don’t cover crucial expenses like refrigerant, brazing rods, fittings, and labor costs. This leaves contractors in a difficult position of either absorbing these costs or charging customers and potentially damaging relationships.

The manifesto calls for manufacturers to take greater responsibility for their products, particularly during the warranty period. Bryan proposes that manufacturers should reimburse contractors for total costs (including labor) for manufacturer-caused repairs within the first year, and cover parts and ancillary materials (including refrigerant) during the subsequent warranty period. He argues that this would incentivize manufacturers to improve product quality and reduce environmental impact, as they would bear more of the financial responsibility for failures and refrigerant losses.

Key topics covered in the podcast:

Evolution of HVAC industry regulations since the 1990s
Increase in parts failures compared to previous decades
Impact of global supply chain issues on part quality and availability
Environmental concerns regarding refrigerant leaks and equipment waste
Warranty coverage limitations and their impact on contractors
Disparity between domestic and overseas manufacturing quality
Financial burden on small contracting businesses
Need for clear standards to differentiate manufacturer vs contractor-caused failures
Proposal for comprehensive warranty coverage including ancillary materials
Environmental responsibility and accountability in manufacturing
Role of manufacturers in industry sustainability
Impact of private equity and large companies on the industry
Need for improved quality control in manufacturing
Relationship between warranty policies and contractor-customer trust
Call for industry-wide collaboration to implement changes

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