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Basic Refrigeration Circuit May 9, 2025, 10:12 am

May 9, 2025

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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.

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No Serve Situations – Short #243

HVAC School – For Techs, By Techs

No Serve Situations – Short #243

In this short podcast episode, Bryan talks about some no-serve situations he’s encountered as a technician and HVAC business owner. He also talks about situations[...]

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13:27

No Serve Situations – Short #243

byBryan Orr

In this short podcast episode, Bryan talks about some no-serve situations he’s encountered as a technician and HVAC business owner. He also talks about situations that may be unpleasant but aren’t quite no-serve situations.

Some common and obvious no-serve situations are when a client threatens a technician, especially with lawsuits, bad reviews, or even bodily harm. However, some clients are just naturally defensive, so we want to be careful and give people a chance if they’re angry and might just need to calm down.

Unrealistic expectations can also cause no-serve situations. Some complaints are tricky to deal with but can be solved, but other problems are impossible to solve. We have every right not to serve clients who have problems that don’t have realistic solutions (such as wanting a thermostat that doesn’t make a clicking noise at all). In those cases, Kalos usually gives some degree of a refund and agrees not to do business with the customer again.

Dirtiness of the living space can also be a no-serve situation. Unless a home is dangerously filthy (e.g., it can cause a respiratory disease) or the equipment is not accessible, we can serve them. Even if the home is filthy or the equipment is inaccessible, we can ask the owner to clean up and return to serve them. On the other side of the coin, hypochondriacs can be a challenge to deal with, but no-serve situations are rare; we can take precautions, including more thorough testing and hold-harmless agreements.

Other no-serve situations are people who don’t pay, people who regularly pay extremely late, customers who aren’t the owner (such as tenants or family members), and clients who try to drag you into drama with other contractors.

Have a question that you want us to answer on the podcast? Submit your questions at https://www.speakpipe.com/hvacschool.

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Nylog Blue Gasket -Thread Sealant for AC/R Systems

Nylog Blue Gasket -Thread Sealant for AC/R Systems
One drop of Nylog on your rubber hose gaskets prior to attaching your core tools, hoses or vacuum gauge will assure that things do not bind or leak during evacuation. Derived from refrigeration grade lubricants. Non-hardening, non-drying fluid which bonds tenaciously to many different substrates. Typically, one drop of Nylog can be stretched about three feet before breaking.

VENOM PACK CONDENSER PURE CONCENTRATE COIL CLEANER

VENOM PACK CONDENSER PURE CONCENTRATE COIL CLEANER
Venom Pack Condenser Cleaner is a high foaming pure concentrate liquid designed to tackle the toughest soils. The proprietary blend of specialty detergents will liquify heavily embedded grease and grime to restore heat transfer and increase the efficiency of the coil.

Viper Condensate Pan and Drain Treatment

Viper Condensate Pan and Drain Treatment
Viper Condensate Pan and Drain Treatment is a sprayable gel. It coats the pan, p-trap and drain piping with a lubricative film to improve flow and prevent future soil adhesion. The slow dissolving enzyme gel will outperform and outlast conventional tablets and strips.

Nylog Blue Gasket -Thread Sealant for AC/R Systems

Nylog Blue Gasket -Thread Sealant for AC/R Systems
One drop of Nylog on your rubber hose gaskets prior to attaching your core tools, hoses or vacuum gauge will assure that things do not bind or leak during evacuation. Derived from refrigeration grade lubricants. Non-hardening, non-drying fluid which bonds tenaciously to many different substrates. Typically, one drop of Nylog can be stretched about three feet before breaking.

VENOM PACK CONDENSER PURE CONCENTRATE COIL CLEANER

VENOM PACK CONDENSER PURE CONCENTRATE COIL CLEANER
Venom Pack Condenser Cleaner is a high foaming pure concentrate liquid designed to tackle the toughest soils. The proprietary blend of specialty detergents will liquify heavily embedded grease and grime to restore heat transfer and increase the efficiency of the coil.

Viper Condensate Pan and Drain Treatment

Viper Condensate Pan and Drain Treatment
Viper Condensate Pan and Drain Treatment is a sprayable gel. It coats the pan, p-trap and drain piping with a lubricative film to improve flow and prevent future soil adhesion. The slow dissolving enzyme gel will outperform and outlast conventional tablets and strips.

Nylog Blue Gasket -Thread Sealant for AC/R Systems

Nylog Blue Gasket -Thread Sealant for AC/R Systems
One drop of Nylog on your rubber hose gaskets prior to attaching your core tools, hoses or vacuum gauge will assure that things do not bind or leak during evacuation. Derived from refrigeration grade lubricants. Non-hardening, non-drying fluid which bonds tenaciously to many different substrates. Typically, one drop of Nylog can be stretched about three feet before breaking.

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