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AC Service Tech LLC

AC Service Tech LLC HVAC Quick Reference Cards for Refrigerant Charging and Troubleshooting

    • Based on 1,002 reviews
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This item is eligible for return within 30 days of receipt

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Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, Feb 10
Order within 5 hours and 40 minutes
Available payment plans shown during checkout

Features

  • Flexible, Weather and UV Resistant Polystyrene Card Material Tested 0F-130F, Three Cards Double Sided per Pack, HVAC Technician Resource

Description

These three HVAC quick reference polystyrene cards are double sided and designed to be used with Air Conditioners and Heat Pumps to measure the refrigerant level in a unit, charge refrigerant, troubleshoot refrigerant based problems, and measure heat transfer to determine if there is a problem. Find the Target Subcooling to measure the refrigerant level of systems with a TXV metering device Use Subcooling to determine if a system is undercharged, correctly charged, or overcharged Find the Target Superheat to measure the refrigerant level of systems with a fixed orifice metering device Use Total Superheat to determine if a system is undercharged, correctly charged, or overcharged Use Delta T to determine if the system is exchanging heat properly Use the P/T Chart to find the Saturated Temp of 5 common refrigerants Use the Guide to determine how to find the Bubble and Dew Saturated Temps of Blend Refrigerants Use the Refrigerant Weight Chart to calculate the amount of refrigerant needed per foot of tubing Use the Guide to weigh in the full or partial refrigerant charge into an empty vacuumed unit


Product Dimensions: 8.88"L x 5.63"W


Item Weight: 3 Ounces


Number of Items: 3


Orientation: Landscape


Shape: Rectangular


Product Dimensions: 8.88"L x 5.63"W


Item Weight: 3 Ounces


Number of Items: 3


Orientation: Landscape


Shape: Rectangular


Material: Polystyrene (PS)


Color: Multicolor


Style: Double Sided


Room Type: Study Room


Age Range (Description): Adult


Brand: AC Service Tech LLC


Special Feature: Flexible, Weather Resistant


Frame Material: Polystyrene


Mounting Type: Wall Mount


Item Weight: 3 ounces


Manufacturer: AC Service Tech, LLC


Item model number: QRCRCT


Date First Available: December 2, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Feb 10

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Great charts
This is exactly what I need as a quick reference when I'm wanting to verify diagnosis in the field.
Reviewed in the United States on August 6, 2023 by Amazon Customer
    • High quality reference cards, well-chosen information
These are great reference cards for a tech or even for a homeowner, to better understand HVAC operation and diagnosis. They should hold up well to the environment, being printed on sturdy plastic. My only suggestion would be to include a little key ring with them, since they already have a hole punched in the corner for that purpose. ... show more
Reviewed in the United States on July 8, 2023 by K. Honeyager
    • Expected
I recieved exactly what I ordered and expected to recieve.
Reviewed in the United States on July 22, 2023 by Chris
    • Cards are very informative and easy to understand.
The cards are made of durable material and is good reference information for A/C service work.
Reviewed in the United States on July 17, 2023 by Larry stx
    • It is a hard plastic/laminated feel they fill durable
Review Image by Miguel Gatica Miguel Gatica
Review Image by Miguel Gatica Miguel Gatica
Reviewed in the United States on July 28, 2023 by Miguel Gatica Miguel Gatica
    • Great little reference cards for an HVAC tech or installer!
Really happy with these reference cards from acservicetech. The cards are really informative with quick information you need to do your job correctly. They are also very sturdy, which helps with the dirty physical job we do. Thank you Craig for doing what you do and helping other HVAC professionals such as myself with your knowledge, videos and products! ... show more
Reviewed in the United States on June 9, 2023 by Isaac W
    • great cards to have
I keep these in my visor in my truck.. handy to have. much bigger than i imagines they would be and pretty solid as well.
Reviewed in the United States on June 4, 2023 by Keith
    • Great reference and will use every day!
I am an HVAC student and am starting as an entry level service tech and these cards are amazing. They are easy to read and understand (given that you have a baseline knowledge of what all the numbers are used for). I will definitely be keeping these with me all the time for quick reference. I hope they make more quick reference cards in the future! ... show more
Reviewed in the United States on April 2, 2023 by Ashley Raye

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