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How to read freon gauges -





How to read freon gauges - Bookshelf


1400 pages

Motor auto repair manual

Creator: Motor Auto Repair Manual | 1983-11

J 23575-01 MANIFOLD GAUGE SET MULTI -CAN DISPENSING UNIT USING J 6271-01 SINGLE CAN OR J 6272-02 MULTI CAN OPENER-VALVE Refrigerant system service connections. Ford fixed orifice systems NOTICE: MAKE SURE OUTLET VALVE ON OPENER IS ...

Publisher: Hearst Books



860 pages

Chilton's Ford Repair Manual, 1980-1987

Creator: Chilton Book Company | Transportation - 1987-12-01

The normal refrigerant capacity is 3V& lbs. TEST GAUGES Most of the service work performed in air conditioning ... Vacuum readings are calibrated from 0 to 30 inches and the pressure graduations read from 0 to no less than 60 psi.

Publisher: W G Nichols Pub

About this book
These manuals provide comprehensive repair and maintenance information on all makes and model years, as indicated for each manufacturer. For consumers who stick to one make of car, this series will provide multi-vehicle information. For retailers with limited shelf space, this series provides model specific coverage in only five volumes



1176 pages

Motor auto repair manual

Creator: Louis C. Forier, Motor (New York, N.Y.), Larry Solnik, Michael J. Kromida | 1980

Open low side gauge manifold hand valve to allow Freon to be drawn into system. If single containers are used, ... Read storage tank gauge pressure. Rotate dial shroud on charging cylinder to correlate with pressure on gauge.


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R134a R12 R22 AC A/C Manifold Gauge Set 5FT Colored Hose Air Conditioner Freon Image

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Air conditioning and heat pump testing and repair using a pressure gauge: Recommendations for refrigeration gas pressure measurement using a test gauge set Proper Use ...

How to tell if A/C refrigerant is low? Steps to recharge ...
Is there a way to tell if the A/C needs a refrigerant recharge (other than the air not being a cool as it once was). My 05 Tacoma has never had the A/C refrigerant ...


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Editor's picks

  • Grace Marketing- HI

    Pit Bull CHIMG777 Pit Bull CHIMG777 R12 A/C Air Conditioning Ac Refrigerant Manifold-Gauge Set

    Home Improvement (Grace Marketing- HI)

    Rating (136 reviews):
    (3.9/5)
    Grace Marketing- HI

    Meh ...

    It worked, it's cheap but if you only need it for a once a year or every couple years job then it's good enough for that without spending 3-5x as much on a better gauge set.Mine came with the plastic lens on the high pressure gauge laying in the bottom of the box. The lenses are very cheap plastic, made like a mayonnaise jar lid and they screw on. So don't freak out if you think you got a broken gauge, just screw the lens back on.It doesn't have the high-pressure fitting that GM vehicles use on the high pressure side of the A/C system. So if you're going to use it on a General Motors vehicle AND you need a high side pressure reading then you'd better look into getting an adapter.It finger tightened up just fine on the fittings I used it for and it doesn't appear to leak or waste coolant, so that's a plus. I had no signs of a leak (frost is a very good indicator of a leak) and they connected up to what they fit on exactly as they should. If you... 2/5 S.L. (Sic Semper Tyrannis) - See all my reviews Verified Purchase(What's this?) This review is from: Pit Bull CHIMG777 Pit Bull CHIMG777 R12 A/C Air Conditioning Ac Refrigerant Manifold-Gauge Set (Tools & Home Improvement) It worked, it's cheap but if you only need it for a once a year or every couple years job then it's good enough for that without spending 3-5x as much on a better gauge set.Mine came with the plastic lens on the high pressure gauge laying in the bottom of the box. The lenses are very cheap plastic, made like a mayonnaise jar lid and they screw on. So don't freak out if you think you got a broken gauge, just screw the lens back on.It doesn't have the high-pressure fitting that GM vehicles use on the high pressure side of the A/C system. So if you're going to use it on a General Motors vehicle AND you need a high side pressure reading then you'd better look into getting an adapter.It finger tightened up just fine on the fittings I used it for and it doesn't appear to leak or waste coolant, so that's a plus. I had no signs of a leak (frost is a very good indicator of a leak) and they connected up to what they fit on exactly as they should. If you... Read more Help other customers find the most helpful reviews  Was this review helpful to you? , August 28, 2012

    Functional

    0 3/5 Trey D Rouse - See all my reviews Verified Purchase(What's this?) This review is from: Pit Bull CHIMG777 Pit Bull CHIMG777 R12 A/C Air Conditioning Ac Refrigerant Manifold-Gauge Set (Tools & Home Improvement) The product is as it is displayed. The hoses are very short and it does not come with the 3/8 fitting/hose for the alternate high pressure fitting used on some vehicles.If you really want to be able to get the job done, your going to have to buy and additional set of fittings and adapters.The set is sufficient quality for a weekend warrior / hobby mechanic, but I would not recommend them for professional use, there are much better sets out there. A used higher quality set from craigslist would be a better find. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , April 15, 2011

    great set for the money

    0 5/5 rrand - See all my reviews Verified Purchase(What's this?) This review is from: Pit Bull CHIMG777 Pit Bull CHIMG777 R12 A/C Air Conditioning Ac Refrigerant Manifold-Gauge Set (Tools & Home Improvement) This is perfect set for doing R-12 and R-22 units because you dont have to spend a lot of money for the high priced guages.I charged up my home unit with these and they worked perfect.Very good Quality for that price.fast shipping too.Thanks 0 Help other customers find the most helpful reviews  Was this review helpful to you? , July 25, 2011
    List Price: $89.99
    Easy to Read Gauges
    3 Color-Coded Hoses
    Color-Coded Gauges, Valves and Hoses
    Complete Diagnostic and Service Gauge Set for use on Air Condition Systems
    Quick-Connect Fittings with High Pressure Safety Valve


  • Yescom

    R410a Refrigerant Manifold Gauges Freon 5ft Hoses Hvac Halogen Diagnostic Tools

    Automotive Parts and Accessories (Yescom)

    Rating (1 reviews):
    (4.0/5)
    Yescom

    what you should expect for what you pay

    0 4/5 Jackt - See all my reviews Verified Purchase(What's this?) This review is from: R410a Refrigerant Manifold Gauges Freon 5ft Hoses Hvac Halogen Diagnostic Tools good value for the price 0 Help other customers find the most helpful reviews  Was this review helpful to you? , April 4, 2015
    High Impact Pop-in Lexan Lens
    Rubber gauge covers for added protection
    Extra Large Easy to Read Color Coded Dials
    Diaphragm Valves with Swivel Seals for More Positive Seal and Less Wear
    Aluminum Alloy Testing Manifold Body


  • 999 Mega USA

    R410a HVAC Refrigerant Manifold Gauge 3 Piece Set 2 Valves with 3 Hoses High Pressure or Low Pressure is Selectable

    Home Improvement (999 Mega USA)

    Rating (3 reviews):
    (3.3/5)
    999 Mega USA

    Great value for homeowner

    0 4/5 JCOM40 - See all my reviews Verified Purchase(What's this?) This review is from: R410a HVAC Refrigerant Manifold Gauge 3 Piece Set 2 Valves with 3 Hoses High Pressure or Low Pressure is Selectable (Misc.) Great for a home owner not for everyday use. But a tradesman knows that!!!! Performed as expected got the job done. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , September 15, 2014

    Five Stars

    0 5/5 Jeffrey Parsons - See all my reviews Verified Purchase(What's this?) This review is from: R410a HVAC Refrigerant Manifold Gauge 3 Piece Set 2 Valves with 3 Hoses High Pressure or Low Pressure is Selectable (Misc.) Does the job well. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , November 23, 2014

    One Star

    0 1/5 william madix - See all my reviews Verified Purchase(What's this?) This review is from: R410a HVAC Refrigerant Manifold Gauge 3 Piece Set 2 Valves with 3 Hoses High Pressure or Low Pressure is Selectable (Misc.) no 0 Help other customers find the most helpful reviews  Was this review helpful to you? , October 22, 2014
    Brass Connection
    quick-disconnect valves and three 60" charging hoses.
    large and clear dials
    High pressure and low pressure dual color-coded gauges
    Provides all the required tools in one unit.


  • Nash Enterprise

    R22 Superheat Subcooling Calculator Charging Chart

    Book (Nash Enterprise)

    Rating (22 reviews):
    (4.6/5)
    Nash Enterprise

    Good Charging Slide Rule

    0 5/5 Fred D. - See all my reviews Verified Purchase(What's this?) This review is from: R22 Superheat Subcooling Calculator Charging Chart (Cards) I enjoy good quality tools, and this slide rule is one of them. Well worth the price. I use it in my business all the time. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , December 22, 2011

    Handy tool to have.

    0 4/5 Keith - See all my reviews This review is from: R22 Superheat Subcooling Calculator Charging Chart (Cards) If you don't want to spend a ton getting another electronic tool, this is super handy to have in the bag. Sometimes I don't have all my tools with me, so this is a quick and easy way to whip the manifold gauges on & verify whether you need to go get all the other tools. It's easy to read and understand only if you're familiar with HVAC. If not, you don't need this anyway, because it won't do you as much good as getting a technician out to help you. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , October 15, 2011

    Easy to use, Small and compact

    0 5/5 Coheed - See all my reviews This review is from: R22 Superheat Subcooling Calculator Charging Chart (Cards) I prefer this slide chart to any other I've used. Its small size makes it easier to handle and it fits in your probe thermometer box. The steps are easy to follow without the clutter. Shows standard dry bulb/ wet bulb approximations. Highly recommend. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , June 8, 2013


  • ARKSEN

    1/2HP 5 CFM Single Stage Rotary Vane Vacuum Pump w/ R134A Auto Freon AC Recharge Manifold Gauge Set Complete Combo Package

    Home Improvement (ARKSEN)

    Rating (10 reviews):
    (4.4/5)
    ARKSEN

    Best service ever by an Amazon supplier, Best Deal Tools

    0 5/5 JRR - See all my reviews Verified Purchase(What's this?) This review is from: 1/2HP 5 CFM Single Stage Rotary Vane Vacuum Pump w/ R134A Auto Freon AC Recharge Manifold Gauge Set Complete Combo Package (Misc.) This was a better product than I expected based on the very low price. However, I had a minor issue with the charging manifold, more a misunderstanding on my part. The vendor, Best Deal Tools, responded with an overwhleming offer to make things right so I will definately seek them out and I highly recommend Best Deal tools to others. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , April 22, 2014

    Pump works great, pulled vacuum fast

    0 5/5 Kell - See all my reviews Verified Purchase(What's this?) This review is from: 1/2HP 5 CFM Single Stage Rotary Vane Vacuum Pump w/ R134A Auto Freon AC Recharge Manifold Gauge Set Complete Combo Package (Misc.) Pump works great ,pulled vacuum fast ,I recommend buying freon can adapter also 0 Help other customers find the most helpful reviews  Was this review helpful to you? , April 12, 2015

    It's okay

    0 3/5 rebecca - See all my reviews Verified Purchase(What's this?) This review is from: 1/2HP 5 CFM Single Stage Rotary Vane Vacuum Pump w/ R134A Auto Freon AC Recharge Manifold Gauge Set Complete Combo Package (Misc.) The pump seems alright, probably about the same quality as most harbor freight pumps. The instruction manual has some really horrible English translations going on. Lots of typos and messed up punctuation. Kind of funny to read actually. On the box, one of the highlights on the pump is "perfect appearance", hah.The gauges it comes with are the typical crappy quality gauges. Probably will work a few times but highly doubt they'll last very long. If you need something that lasts this probably isn't it. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , March 28, 2014
    List Price: $289.99
    Price: $249.99
    You Save: $40.00 (14%)
    Pump Air Displacement: 5CFM
    Motor Size: 1/2HP
    Includes 3 Color-Coded 60" Long Service Hose With Storage Attachment
    R134a A/C Manifold Gauge Set
    Easy To Read Pressure Gauges


  • T-Motorsports

    TMS® A/C Refrigerant Manifold Gauge R22 R404A R134A 60" Hose

    Automotive Parts and Accessories (T-Motorsports)

    Rating (35 reviews):
    (3.2/5)
    T-Motorsports

    Convinced

    I bought this item by mistake because I looked at different ones to compare them and ended up picking the wrong one. When I realized it I was in the checkout section almost done. I could have cancel the purchase and I really thought about it but said to my self wth. even thought I read a bad review let me try this one. Beside I wanted to use an Amazon gift card. Well, time to get to my point. The delivery was timely, the packiging was good, came with no instructions, although,you should not need them if your know what you are using it for, and most important is that this Gauge does not work period. Finally, I just recived some refrigerant, which I oredered from an Amazon seller and used this gauge to tried to top off an AC unit and did not do the job. I tried to take the system presure with same negative results. Then, I called a friend of my and asked him to bring his old but excelent Yellow Jacket Gauge and we were able to do the simple task in no time. I tried my gauge a second... 1/5 Pesimus - See all my reviews Verified Purchase(What's this?) This review is from: TMS® A/C Refrigerant Manifold Gauge R22 R404A R134A 60" Hose I bought this item by mistake because I looked at different ones to compare them and ended up picking the wrong one. When I realized it I was in the checkout section almost done. I could have cancel the purchase and I really thought about it but said to my self wth. even thought I read a bad review let me try this one. Beside I wanted to use an Amazon gift card. Well, time to get to my point. The delivery was timely, the packiging was good, came with no instructions, although,you should not need them if your know what you are using it for, and most important is that this Gauge does not work period. Finally, I just recived some refrigerant, which I oredered from an Amazon seller and used this gauge to tried to top off an AC unit and did not do the job. I tried to take the system presure with same negative results. Then, I called a friend of my and asked him to bring his old but excelent Yellow Jacket Gauge and we were able to do the simple task in no time. I tried my gauge a second... Read more Help other customers find the most helpful reviews  Was this review helpful to you? , September 11, 2011

    Don't have low-loss fitting or anti-blow back and don't seem to be working

    0 1/5 investordude (USA the greatest) - See all my reviews Verified Purchase(What's this?) This review is from: TMS® A/C Refrigerant Manifold Gauge R22 R404A R134A 60" Hose I got these gauges to connect to me home central air to measure the pressure. I ran into problem when I found that these gauges did not come with low-loss fittings. So I had to buy low loss fittings for $26 from ebay. After I got everything I needed I tried them on. I have three central air conditioners. I first connected gauges to the one that has low gas and I got zero reading on both gauges. So I tried it on working unit and still got zero reading. I may be doing something wrong but looks like gauges are not working. I will update after I try other set of gauges but until then I can only give these gauges one star, I would have given them less than one since they have not worked for me. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , July 31, 2011

    pure garbage

    0 1/5 jazz6339 - See all my reviews Verified Purchase(What's this?) This review is from: TMS® A/C Refrigerant Manifold Gauge R22 R404A R134A 60" Hose they leaked right out the box just to test them before i used them i connected them to my vacuum pump and pulled a quick vacuum tun the pup off before i could even look at them the pressure was back up to zero i even went so far trying to salvage them by putting teflon tape on all the connections still leaked what a piece of crap and amazon you are getting a bad rap for selling these cheap china made gages to the public. If i could rate them a minus number i would. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , May 20, 2012
    HIGH PRESSURE SAFETY VALVE
    SOLID BRASS CONSTRUCTION
    Converter/connector is NOT included
    3" RED & BLUE GAUGES; 60" LONG HOSES, REFRIGERANT: R22/R404A/R134A
    COLOR CODING ON GAUGES, VALVES AND HOSES


  • Interdynamics

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

    Automotive Parts and Accessories (Interdynamics)

    Rating (178 reviews):
    (4.0/5)
    Interdynamics

    2003 Jetta TDI A/C Recharge Success

    My A/C pump was not engaging and the dual radiator fans were not turning on when I had the key in the on position and the AC button pressed in. I used this product and now the A/C pump is turning on and the AC is running somewhat cold.Instructions are a little vague so I will share with you my process.TO TEST: I tested with the car engine off to see if the pressure was low. Pressure was low so I turned the car on to fill the system.TO FILL: Car engine must be running the entire time (regardless of vehicle). The 134a refrigerant cannot enter the system with the car engine off. When you press the button to fill the gauge jumps up to the red 'danger' level. This is normal all you do is release button to see the effects of your fill. During the fill, I pressed the button on for 4 seconds and released the button to check my progress. Once I noticed the system pressure did not change much (when button was not pressed in) I incresed the button on time to... 4/5 Danielle "daniellec81" (Walla Walla, WA USA) - See all my reviews This review is from: Interdynamics MAC-134 EZ Chill Refrigerant Refill with Charging Hose and Gauge - 18 oz. (Automotive) My A/C pump was not engaging and the dual radiator fans were not turning on when I had the key in the on position and the AC button pressed in. I used this product and now the A/C pump is turning on and the AC is running somewhat cold.Instructions are a little vague so I will share with you my process.TO TEST: I tested with the car engine off to see if the pressure was low. Pressure was low so I turned the car on to fill the system.TO FILL: Car engine must be running the entire time (regardless of vehicle). The 134a refrigerant cannot enter the system with the car engine off. When you press the button to fill the gauge jumps up to the red 'danger' level. This is normal all you do is release button to see the effects of your fill. During the fill, I pressed the button on for 4 seconds and released the button to check my progress. Once I noticed the system pressure did not change much (when button was not pressed in) I incresed the button on time to... Read more Help other customers find the most helpful reviews  Was this review helpful to you? , July 16, 2012

    4.75 Stars for an EZ AC Fix

    I'm not an expert, so I really liked that the refilling process was simple.1. Wait until the weather outside is between 75F to 85F (because that's what temperature gauge was calibrated to(some other refrigerants have a variable weather adjustment, but not this company)).2. Turn your car on, set the AC to full blast and wait a few minutes.2. Screw the small end of the hose to the refrigerant can head.3. Attach the big end of the hose to the low side port by holding back the quick release of the hose and then letting go of it when the hose is on the port.4. Let the gauge measure the pressure. If your gauge is not working correctly, it's probably because your compressor is not spinning (it stops spinning when your car is really low on refrigerant). You need to add a bit of refrigerant at this point just to get a pressure reading.5. Take the blue cap off the can and spray for a couple minutes. Make sure to have the... 5/5 P - See all my reviews Verified Purchase(What's this?) This review is from: Interdynamics MAC-134 EZ Chill Refrigerant Refill with Charging Hose and Gauge - 18 oz. (Automotive) I'm not an expert, so I really liked that the refilling process was simple.1. Wait until the weather outside is between 75F to 85F (because that's what temperature gauge was calibrated to(some other refrigerants have a variable weather adjustment, but not this company)).2. Turn your car on, set the AC to full blast and wait a few minutes.2. Screw the small end of the hose to the refrigerant can head.3. Attach the big end of the hose to the low side port by holding back the quick release of the hose and then letting go of it when the hose is on the port.4. Let the gauge measure the pressure. If your gauge is not working correctly, it's probably because your compressor is not spinning (it stops spinning when your car is really low on refrigerant). You need to add a bit of refrigerant at this point just to get a pressure reading.5. Take the blue cap off the can and spray for a couple minutes. Make sure to have the... Read more Help other customers find the most helpful reviews  Was this review helpful to you? , May 12, 2014

    Great stuff and yes you can order it without a license...

    0 5/5 Handy Technician - See all my reviews Verified Purchase(What's this?) This review is from: Interdynamics MAC-134 EZ Chill Refrigerant Refill with Charging Hose and Gauge - 18 oz. (Automotive) I was very pleased to be able to receive this product from Amazon, I know that the EPA has lifted restrictions on the sales of Freon to only certified technicians but surprisingly the Automotive stores in my area told me they still wouldnt sell it to just anyone... I told them I'ld get it on-line, good luck with that was their response. I received and installed this product and my AC works good as new!!! 0 Help other customers find the most helpful reviews  Was this review helpful to you? , July 29, 2011
    List Price: $32.99
    Price: $24.22
    You Save: $8.77 (27%)
    Restores lost refrigerant and oil
    Contains leak sealer to stop most common leaks in rubber hoses gaskets and O-rings
    All in one solution
    Self dispensing can has reusable recharge hose and in line pressure gauge
    Easy to read gauge


  • KOVAL INC.

    R410a Freon Refrigerant Manifold Gauges W/60" Hoses AC HVAC Halogen Diagnostic

    Home Improvement (KOVAL INC.)

    Rating (1 reviews):
    (1.0/5)
    KOVAL INC.

    Junk from china

    0 1/5 Joe DiCarlo - See all my reviews Verified Purchase(What's this?) This review is from: R410a Freon Refrigerant Manifold Gauges W/60" Hoses AC HVAC Halogen Diagnostic (Misc.) Junk! Chinese tools, not made to work in the hvac industry! They're gauges designed for an oriental homeowner!!! Will never buy hvac tools online again! 0 Help other customers find the most helpful reviews  Was this review helpful to you? , August 22, 2013
    Large 2 3/4" Diameter Easy-to-read, Dual Gauges
    A heavy Duty Hook for Hanging the Gauges
    Extra Large Easy to Read Color Coded Dials
    Temperature in °F for R134a, R12,R502
    Diaphragm Valves with Swivel Seals for More Positive Seal and Less Wear


  • ARKSEN

    CZFCGA 500 PSI A/C Manifold Gauge Set by CAL HAWK

    Automotive Parts and Accessories (ARKSEN)

    Rating (59 reviews):
    (3.7/5)
    ARKSEN

    High Quality

    0 5/5 C. Davis "The Davis" (Grand Forks, ND) - See all my reviews, October 9, 2012

    Yellow service hose does not fit.

    0 3/5 Terry - See all my reviews Verified Purchase(What's this?) This review is from: CZFCGA 500 PSI A/C Manifold Gauge Set by CAL HAWK (Automotive) Read the reviews on this manifold set and it didn`t sound too bad so i bought it and also bought the Mastercool #85510 can tap valve to go with it. Everything was fine until i tried to connect the yellow hose to the can tap and found out it does not fit. Emailed Mastercool and they said that i also need fitting # 82635 around $6.00 that reduces the can tap from 1/2" down to a 1/4". Guess i will get that ordered now. Good thing its not the middle of summer. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , April 6, 2013

    About the reviews on this product and AC charging.

    0 4/5 Christian - See all my reviews This review is from: CZFCGA 500 PSI A/C Manifold Gauge Set by CAL HAWK (Automotive) Most of these reviews are by people that don't know what they are doing. The cans only fit the short hose that adds 134-A directly into the low pressure fitting. Cans are about $10 for 14 OZ. A 30# cylinder at Sam's Club is about $85. Less than $3 a pound vs $10 for 14 oz. If you are just adding a little refrigerant you don't need the gauges. You need the gauges to vacuum the system down and then charge. No adapter needed to attach center hose to the canister. If you know nothing about AC charging and only going to add a can a year or small amount just have someone do it that knows how to hook up gauges. Sorry, a little blunt, but I have been a master mechanic and body repair man state certified since back in the 70s. The advice is free so take it or leave it. Good luck. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , November 4, 2014
    List Price: $109.99
    Price: $49.95
    You Save: $60.04 (55%)


  • Enviro-Safe

    Enviro-Safe R12/R22 Can Tap with Gauge - R-134a Can to R-12/R-22 Port

    Automotive Parts and Accessories (Enviro-Safe)

    End fits R12, 22, 502 fittings
    Gauge has scale readings for R134, R12, & 22
    20" long hose


Gauges