Spare parts direct store - http://spare-parts-direct.com

How to read freon gauges -





How to read freon gauges - Bookshelf


738 pages

Basic Refrigeration and Air Conditioning

Air conditioning - 2013

Now coming back to our refrigeration system, as explained earlier, air and moisture in the system should be removed ... Even a good, well-calibrated compound gauge cannot read anything less than 735 or 750 mm (29 or 291⁄2≤) accurately.

Publisher: Tata McGraw-Hill Education



400 pages

Today's Technician: Automotive Heating & Air Conditioning

Creator: Mark Schnubel | Technology & Engineering - 2008-08-11

HFC-134a is hydrofluorocarbon refrigerant gas used as a refrigerant and is also known as R-134a. This refrigerant is not ... Low-side gauge is the left-side refrigerant gauge on the manifold used to read pressures on the low side of the system.

Publisher: Cengage Learning

About this book
Today's Technician: Heating & Air Conditioning, 4E is a two-book set that separates theory and diagnostic content into Classroom and Shop Manuals. This separation allows readers to learn theories of heating and air conditioning before applying them, with the benefit of cross-referenced page numbers in each manual to link related material. Updated to reflect the industry's latest developments and trends, this edition includes expanded coverage of basic theories, as well as all-new sections on upgraded equipment, sealant contamination and testing, and non-compressible gas contamination. In addition, the information on compressors has been updated to include new hybrid electric compressors and the safety issues that accompany them. With this up-to-date, technically accurate information, this is a valuable resource for learning the theory, components, diagnosis and repair of modern automotive heating and air conditioning systems.Important Notice: Media content referenced within the product description or the product text may not be available in the ebook version.



592 pages

Today's Technician: Automotive Heating & Air Conditioning Classroom Manual and Shop Manual

Creator: Mark Schnubel | Education - 2016-01-25

Chapter 5 The Manifold and Gauge Set BASIC TOOLS Manifold and gauge set with hoses Safety glasses or goggles ... Low-side gauge is the left-side refrigerant gauge on the manifold used to read pressures on the low side of the system.

Publisher: Cengage Learning

About this book
Updated to reflect the latest trends, technology, and relevant NATEF standards, this integrated, two-book set covers theory and hands-on content in separate Classroom and Shop Manuals. This innovative approach allows students to learn fundamental climate control theory, including basic physics related to heat transfer, before applying their knowledge through practical, hands-on shop work. Cross-references in each manual link related material, making it easy to connect classroom learning to lab and shop activity.Important Notice: Media content referenced within the product description or the product text may not be available in the ebook version.


Gauges Directory

How to Recover Freon from an Air Conditioning Compressor ...
How to Recover Freon from an Air Conditioning Compressor. "DISCLAIMER" (READ THIS FIRST!!!) The steps found in this article must only be performed by a licensed HVAC ...

HVAC Manifold Gauges and P/T Chart - YouTube
I show how to read manifold gauges and P/T chart. Attention: Do not try any of what you see in this video at home. It takes at least two years of HVACR ...

Author Topic: WHATS THE CORRECT FREON PRESSURE??? (Read ...
Author: Topic: WHATS THE CORRECT FREON PRESSURE??? (Read 21879 times) 0 Members and 1 Guest are viewing this topic.

How to Vacuum A/C Lines | Home Guides | SF Gate
Moisture inside refrigerant lines can contaminate the lines, causing your air conditioning unit to become sluggish. Anytime an A/C unit is installed, or reinstalled ...

How To Use HVAC Gauges - Central Air Conditioner And ...
HVAC gauges are the most frequently used equipment in the air conditioner field. This is how we read an ac gauges.


ADVANCED PRODUCT FINDER

    Don't see what you're looking for?

Editor's picks

  • Enviro-Safe

    Enviro-Safe 3226 Can Tap with Gauge - R-134a can to R-12/R-22 port

    Automotive Parts and Accessories (Enviro-Safe)
    List Price: $20.45
    Price: $14.96
    You Save: $5.49 (27%)

    20" long hose
    End fits R12, 22, 502 fittings
    R-134a Can to R-12/R-22 service port connection
    Gauge has scale readings for R134, R12, & 22


  • ARKSEN

    ARKSEN 1/2HP 5 CFM Vacuum Pump, Refrigerant AC Recharge Manifold Gauge, R134A

    Automotive Parts and Accessories (ARKSEN)

    Rating (89 reviews):
    (3.8/5)
    ARKSEN

    You get what you pay for. The pump was okay but the gauges leaked

    2/5 sanman - See all my reviews Verified Purchase(What's this?) This review is from: ARKSEN 1/3HP 3 CFM Rotary Vane Vacuum Pump with R134A Manifold Kit You get what you pay for. Though the pump doesn't seem super high quality and it's instruction manual looks as though it was written in Chinese and run through Google translate, I cannot complain too much about the pump because it did run and was able to pull a vacuum as it was supposed to. The biggest disappointment was the gauges however. Though they were able to maintain a vacuum while the pump was running, as soon as the pump was shut off, the system lost vacuum in under a minute. Yes, it was the gauges leaking, not my AC. I disconnected the gauges, closed the output valves, pulled a vacuum on only the gauges, and they still leaked. This was no good, because if Freon were added after the system lost vacuum and filled with air, the air would damage the ac system over time. I ended up having to go to Autozone and buy a set of quality gauges that did not leak. If you want a cheap pump, this one may be okay, but steer clear of the gauges. Help other customers find the most helpful reviews  Was this review helpful to you? , April 23, 2016

    Pump works great, pulled vacuum fast

    5/5 Kell - See all my reviews Verified Purchase(What's this?) This review is from: ARKSEN 1/2HP 5 CFM Vacuum Pump, Refrigerant AC Recharge Manifold Gauge, R134A Pump works great ,pulled vacuum fast ,I recommend buying freon can adapter also Help other customers find the most helpful reviews  Was this review helpful to you? , April 12, 2015

    A MUST HAVE FOR ANY GARAGE!

    5/5 PonySlaystation - See all my reviews Verified Purchase(What's this?) This review is from: ARKSEN 1/3HP 3 CFM Rotary Vane Vacuum Pump with R134A Manifold Kit I bought this set thinking it's gotta be cheaply made for the price. The vacuum pump is high quality and pulls the system down within a few seconds. I have successfully fixed 100s of a/c systems and installed compressors and haven't had one customer complaint and the set holds up very well. After 100s of uses the High side fitting finally went out on me, but not of fault in the quality of the fitting. A customer so highly overcharged his system that it pegged out the gague and blew the seal on the top. Other than that it's a perfect set for any professional or starter kit!TIP- Make sure you tighten the fittings ONLY until it registers on the gauge. Many fittings on cars have different depths the stem comes in contact with the fitting, and if you tighten as far as it can go you can damage the port on the car causing it to have a constant leak! (Personal experience) Help other customers find the most helpful reviews  Was this review helpful to you? , October 7, 2016
    List Price: $129.97
    Pump Air Displacement: 5CFM
    Easy To Read Pressure Gauges
    Motor Size: 1/2HP
    R134a A/C Manifold Gauge Set
    Includes 3 Color-Coded 60" Long Service Hose With Storage Attachment


  • ARKSEN

    ARKSEN Air Conditioner Refrigerant R410 R22 R134 R407C AC Manifold Gauge Set 5FT Colored Hose

    Automotive Parts and Accessories (ARKSEN)

    Rating (12 reviews):
    (2.9/5)
    ARKSEN

    It works fine and looks pretty good

    4/5 AM (Florida) - See all my reviews Verified Purchase(What's this?) This review is from: ARKSEN Air Conditioner Refrigerant R410 R22 R134 R407C AC Manifold Gauge Set 5FT Colored Hose The Gauge seems robust enough and works well. Since the gauges are in metric (MPa) and all the documentation I have on A/C is SAE, I printed the conversions to SAE, cut them out, and stuck them to calibration lines on the gauge, then replaced the protective cover. It works fine and looks pretty good. I don't know how long the gluestick adhesive would hold out though. The only issue I have is the Red and Blue Quick connect couplers (shown in the product photograph) for the 134 refrigerant for your vehicle, could not attach to the hose for the gauge. A 5/16" adapter was needed. I got two and they work well. I would have expected that Quick Connect Couplers would have had the correct fittings, since they are provided with the unit. It is not an issue, just an added, unexpected expense. Help other customers find the most helpful reviews  Was this review helpful to you? , May 7, 2016

    Good gauge set

    5/5 Marc Burningham (Layton, Utah USA) - See all my reviews, September 8, 2015

    I was sent hoses that connect to the manifold but ...

    1/5 Kelly Lovelady - See all my reviews Verified Purchase(What's this?) This review is from: ARKSEN Air Conditioner Refrigerant R410 R22 R134 R407C AC Manifold Gauge Set 5FT Colored Hose I was sent hoses that connect to the manifold but not to the "quick connectors" . So I will have to go buy more adapters to be able to use these gauges. a complete waist of time and money... Help other customers find the most helpful reviews  Was this review helpful to you? , June 1, 2016
    List Price: $69.97
    Can be used for automotive or household air conditioning units
    Vibration resistant gauges feature a flutter-free design with provides accurate readings
    Color coded hoses help identify the hoses for added convenience
    Heavy duty aluminum manifold body is highly durable and lightweight
    Our easy to read 2-7/8" gauges feature 4 MPA scales (R143a, R404a, R410a, R22)


  • Generic

    A/C R134a R12 R22 Single Manifold Gauge Kit 4 Testing Charging Air Conditioner By YOLO Stores

    Home Improvement (Generic)
    List Price: $39.95

    Single Ac Low Side Manifold Gauge Kit, Hose, and ACME adapter
    Heavy duty brass manifold body is highly durable and lightweight
    Heavy duty solid brass connections resists wear and last a lifetime.
    Vibration resistant gauges feature a flutter-free design with provides accurate readings
    Easy to read gauges feature 3 PSI scales (R134a, R22, R12) and Fahrenheit scale


  • ARKSEN

    ARKSEN Professional 4-Way Manifold Gauge 4Hose AC/HVAC 5CFM Vacuum Pump 1/2HP

    Home Improvement (ARKSEN)
    List Price: $129.97

    Built-in high volume cooling fan for extended use
    Operating Pressure: 800 PSI; Burst Pressure: 4000 PSI
    Free Air Displacement: 5CFM Power: 1/2HP; Pump Speed: 1720 RPM
    Heavy duty aluminum manifold body; Compatibility: R404a, R410a, R22
    Color coded hoses help identify the hoses for added convenience


  • Interdynamics

    Interdynamics MAC-134 EZ Chill Refrigerant Refill with Charging Hose and Gauge - 18 oz.

    Automotive Parts and Accessories (Interdynamics)
    List Price: $26.15

    Contains leak sealer to stop most common leaks in rubber hoses gaskets and O-rings
    All in one solution
    Restores lost refrigerant and oil
    Self dispensing can has reusable recharge hose and in line pressure gauge
    Easy to read gauge


  • Thailand

    Scale Miniature Ming HENG Mini Scale 0.01g-200g. Silver. Stainless steel.

    Kitchen (Thailand)

    Ultra-compact design. - 200g capacity with 0.01g increment - Excellent quality.
    - Easy on-key calibration. - Carrying black pouch.
    - Stainless steel platform. - Back-lit LCD display. - Auto power off after 1 minute.
    Fits easily in a pocket or handbag for weighting on the go.
    Low power prompting.


  • ARKSEN

    ARKSEN 4-Valve Manifold HVAC Dual Gauge, R404A R410A R22 w/ Carrying Case

    Automotive Parts and Accessories (ARKSEN)
    List Price: $44.97

    Reading Gauge Diameter: 2-3/4"
    Pressure In PSI Measurement Fahrenheit Degree (F)
    Working Pressure: 800PSI / Burst Pressure: 4000PSI
    (4) 5 Feet Color Coded Charging Hose: Red (1/4" SAE), 2x Yellow (1/4" SAE), Blue (1/4" SAE)
    Carrying Case Included


  • ARKSEN

    ARKSEN 4 Way Valve Manifold Gauge 4-Hoses Quick Adapter HVAC + 1/2HP 5CFM Vacuum Pump R410 R22 R134 R407C

    Automotive Parts and Accessories (ARKSEN)

    Rating (4 reviews):
    (4.0/5)
    ARKSEN

    Great Price

    5/5 Edward Thomas - See all my reviews Verified Purchase(What's this?) This review is from: ARKSEN 4 Way Valve Manifold Gauge 4-Hoses Quick Adapter HVAC + 1/2HP 5CFM Vacuum Pump R410 R22 R134 R407C This was a deal.Harbor Freight was almost twice the cost.The unit worked fine.Only problem you need an adapter to connect to the freon tap. Help other customers find the most helpful reviews  Was this review helpful to you? , April 21, 2016

    Four Stars

    4/5 Arvind V. Doerdjan (Florida, miami) - See all my reviews Verified Purchase(What's this?) This review is from: ARKSEN 4 Way Valve Manifold Gauge 4-Hoses Quick Adapter HVAC + 1/2HP 5CFM Vacuum Pump R410 R22 R134 R407C GOOD FOR HOME USE. Help other customers find the most helpful reviews  Was this review helpful to you? , January 21, 2017

    Two Stars

    2/5 Herbert Chapman - See all my reviews Verified Purchase(What's this?) This review is from: ARKSEN 4 Way Valve Manifold Gauge 4-Hoses Quick Adapter HVAC + 1/2HP 5CFM Vacuum Pump R410 R22 R134 R407C I does not work for me Help other customers find the most helpful reviews  Was this review helpful to you? , June 16, 2016
    List Price: $129.97
    Non slip contoured carrying handle; Exhaust port with cap
    High Efficiency & Low Noise With Internal High Volume Cooling Fan for Extended Use
    Oil Drain Plug Positioned at Bottom of Oil Reservoir
    Hose Length: 5 Feet; Compatibility: R404a, R410a, R22 R134A
    5 CFM Single Stage Rotary Vane Vacuum Pump; 110V 60Hz 1/2HP Motor


  • ARKSEN

    ARKSEN R134a R12 R22 R502 Manifold Gauge & 5CFM 1/2HP Vacuum Pump 5ft HVAC Kit

    Automotive Parts and Accessories (ARKSEN)

    Rating (43 reviews):
    (3.8/5)
    ARKSEN

    Set good, but requires work to use. Bad gaskets, good pump and gauge.

    PROS: Good inexpensive pump. Gauge works well. PRICECONS: Bad air hose gaskets. Celsius readings only - requires conversion by user to Fahrenheit.OVERALL: It is nice for the money, but requires work to use. I would buy it again if not able to find one with a F reading on the gauge for similar price.We bought this pump & gauge set ($99) to help diagnose our old motor home a/c. When my husband tried to hook up the hoses, he discovered the cheap plastic air hose gaskets had arrived broken and leaked terribly. They had to be replaced before using ($4). The gauge scale is in Celsius with no Fahrenheit scale. Since other equipment listed requirements in F, use required constant conversions.cheap plastic gaskets is hoses that leaked terribly and had to be replaced before use. The gauges showed the a/c would not hold pressure and he found the receiver/drier was the culprit. Went to Amazon for freon (dozen cans $57.75 and we used 3) and to the manufacturer... 3/5 J. Smith - See all my reviews Verified Purchase(What's this?) This review is from: ARKSEN Deluxe Manifold Gauge A/C, 3CFM Vacuum Pump, 5ft HVAC Hoses PROS: Good inexpensive pump. Gauge works well. PRICECONS: Bad air hose gaskets. Celsius readings only - requires conversion by user to Fahrenheit.OVERALL: It is nice for the money, but requires work to use. I would buy it again if not able to find one with a F reading on the gauge for similar price.We bought this pump & gauge set ($99) to help diagnose our old motor home a/c. When my husband tried to hook up the hoses, he discovered the cheap plastic air hose gaskets had arrived broken and leaked terribly. They had to be replaced before using ($4). The gauge scale is in Celsius with no Fahrenheit scale. Since other equipment listed requirements in F, use required constant conversions.cheap plastic gaskets is hoses that leaked terribly and had to be replaced before use. The gauges showed the a/c would not hold pressure and he found the receiver/drier was the culprit. Went to Amazon for freon (dozen cans $57.75 and we used 3) and to the manufacturer... Read more Help other customers find the most helpful reviews  Was this review helpful to you? , October 16, 2015

    Am very well pleased and they work great

    5/5 Lester Hebert (PRESCOTT VALLEY, AZ, US) - See all my reviews, March 31, 2016

    Needs better manuals and service support.

    3/5 David G. - See all my reviews Verified Purchase(What's this?) This review is from: ARKSEN R134a R12 R22 R502 Manifold Gauge & 5CFM 1/2HP Vacuum Pump 5ft HVAC Kit The gauge set is solid but comes with now manual or even a vendor name on the box. I was hoping to find a way to order parts if necessary som time in the future. The vacuum pump looks rugged and well made. The storage cap for the outlet needs a retainer strap for when the pump is in use. The manual for the vacuum pump is very pump translated from another language and has not means for ordering pats if it needs servicing in the future . Not a bead set for the price but do not plan on using it heavily for a long period of time. Help other customers find the most helpful reviews  Was this review helpful to you? , March 3, 2017
    List Price: $119.97
    Color coded hoses help identify the hoses for added convenience
    Direct Drive Motor Allowing Easy Starting and is Maintenance Free, Micro Rating: 75 Microns (10pa)
    5 CFM Single-Stage Rotary Vane Vacuum Pump 10Pa VACUUM PACKAGE DEAL !!
    Internal High Volume Cooling Fan for Extended Use
    Motor Power: 1/2HP, 5 CFM, Pump Speed: 1720 RPM, Power Voltage: 110V, 60Hz


Gauges