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Cr-45-pc-pr-134 - fogel

Fix a leak, vacuum line, replaced refrigerent, now system compresss is over heating. Help

Roland

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Refrigeration and Absolute Vacuum


I have noticed some good advice here when it comes to pulling a vacuum and recharging a refrigerator. I also have seen some not so good response to answers when it comes to someone that is new to pulling a complete vacuum. *Refrigerators and absolute Vacuum are about the most difficult combinations to obtain. First mankind has never achieved absolute vacuum and the closest we will come in our life time to complete or absolute vacuum is in outer space. When repair is done to a sealed system there are a few things to remember. 1 Once a sealed system is opened never leave it unsealed to the outside environment. Most new refrigerators have ester oil as a lubricant and ester oil will draw moisture from the air and hold it in the oil resulting in the oil carrying moisture particles up the capillary tube and creating a blockage that appears as if the suction side is pulling a deep vacuum. 2 Always replace filter drier with a new filter drier and arrow pointed into the correct direction. 3Always find and fix a leak in a sealed system before recharging. * Some leaks are in the Yoder Condenser Loop and the only way to fix is to bypass. This will sometimes show up as sweating around the door frame but much better to deal with than complete refrigerator replacement. 4Pull a vacuum as long as it takes to boil off any moister that may be trapped in the sealed system. If system has no leaks and you use a heavy duty vacuum pump this is about a hour. 5Always test gauges for leaking seals in gauges before spending so much time pulling any vacuum. *Bad gauge seals will result in moisture or poor vacuum results. 6Always charge refrigerators by weight. *Refrigerators use very little Freon. 6-8 ounces, over or under charging will result in poor cooling results all the time. 7Never try to solder steel to copper piping with just silver solder. * Always use eutectic solder for soldering copper to steel. * In this case eutectic solder is defined as Flux-Coated Silver Brazing Alloy. For example Safety-Silver 45 by Harris. 8Always use the correct oil for the correct refrigerant. * Too much, too little or wrong lubricant will damage the system. If you have questions please let me know, Thanks, Sea Breeze Here is more....... As we talked earlier I did some research on Fijitsu Split systems and as always with these units they is very little in instructions or model/size category to give good solid answers to all the possible problems you may be having. I do know with my experience that the R410A are critical during installation that they havea very good and long vacuum during pre-charging the lines during installation. One little bit of outside air in the lines will cause extreme head pressures that will also simulate some of the symptoms you described today. R410a runs at 60% higher pressure that the older R22 units did and purge and clean silver solder of fittings is critical to the unit's performance. Even a crimp in a discharge line makes for problems during installation. here is a link=> Brochure here=> http://www.fujitsugeneral.com/PDF_06/halcyon06_brochure.pdf If you need more answers feel free to contact me here or through my profile and again Thanks for using Fixya, Sea Breeze

on Dec 16, 2010 | Refrigerators

1 Answer

Coil in freezer has puncture , how to fix?


only way to fix this problem is silver solder. It takes an oxy/acetalene torch to melt the silver solder and plug the hole. Then you have to evacuate the line (pull a vacuum on the line) and then add refigerant for it to work again you need: oxy/acetalene torch, vacuum pump, and gauges plus the refrigerent (134) probably buy a new freezer for the price of all the equipment

Oct 03, 2014 | Haier Refrigerators

1 Answer

I own a Fogel Fridge Model # VR-17-RE-PR Recently


Richard,
It is important to know if the compressor itself is running. If there is a loose connection to the compressor via the start/over load relay (normally attaches directly onto the compressor), or if the start/over load otself is bad the compressor will not run. Best way to tell is via gauges but I doubt your frig has ports. Check to see if your compressor is really hot. Could be bad start/over load relay or bad compressor. Try unplugging your frig for say 30 min then, with your hand on top of a cool compressor, plug the frig back in and see if compressor smoothly vibrates for at least 5 min without becoming very hot or shutting off even though fan continues to run. The fact your fan is running TYPICALLY means the thermostat is calling for lower temps and the fan/compressor kick in together.

Oct 12, 2013 | Refrigerators

1 Answer

Why is my fogel sandwich prep getting too cold


Hi,


There can be many reasons why your refrigerator is freezing your food. To see what could be happening and to figure out how to possibly fix your problem. Take a look at this tip which contains many of the causes and solutions to fix the problems.


Refrigerator is Too Cold and Freezing Food

heatman101

Oct 29, 2010 | Fogel FLP-278 Commercial Refrigerator

1 Answer

Sandwich prep refrigerator too warm.


It sounds as though you have a clogged capillary tube, cannot be sure without suction and liquid line pressures and temps but if you can, ask the tech if the suction pressure seemed to be low, if so, replace the capillary tube with the proper length and diameter tube, replace the liquid line dryer and pull a GOOD vacuum on the system and recharge it, refering to the rating plate for the proper amount and type of refrigerant.

Jun 22, 2009 | Fogel FOG-FLP4512 Undercounter Sandwich...

3 Answers

Want to know operating pressures on a 134a refrigerator low and high


Maximum efficiency is achieved when there is the greatest difference between high side and low side provided the low side stays under 30 psi or so. The low side pressures must stay low enough to cause the refrigerant to change states in the evaporator. If you see frost on the compressor suction line, there's too much refrigerant, and you'll overload the compressor. The correct approach, if you have the equipment and it sounds like you must have a gauge set but you need recovery to do this right, is to evacuate the sealed system, (a tight system will hold a vacuum overnight, but an hour is a good test if you suspect any leaks) and refill with the exact amount of refrigerant (by weight) as indicated on the ID tag.. Any system that will not perform when filled to that specification has either a bad valve in the compressor, or a restriction caused by contamination. Contamination is usually from moisture (humidity) introduced into the system by improper servicing, but is usually relieved if the system is under vacuum long enough to boil out the moisture. If the compressor is the culprit, it's usually game-over.

May 30, 2009 | Electrolux Refrigerators

1 Answer

Need to know normal pressure for 134-a to recharge my refrigerator


Depending upon the way you charge it you could introduce air into the system. The lines need to be bleed before charging to make sure the refrigerant is in the charge lines and not air. Most folks that do not do this for a living make that mistake.

With air in a 134 system problems will abound. The only way to really charge a system is to use a vacuum pump to pull it down then charge to the correct lever in ounces as provided on the label of the refrigerant u purchase

Apr 17, 2009 | Amana 22.6 cu. ft. Side-By-Side...

1 Answer

Refrigerator keep running


Way too much refrigerant in this fridge.
You have a bad thermostat.

Feb 24, 2009 | Fogel FOG-CR67PCUS Sliding Glass Door...

1 Answer

Replace compressor


This type of work is normally performed by a certified technician. System refrigerant must be recovered prior to working on the system. After refrigerant is recovered from the system the lines can be removed from the compressor stub tubes by heating up to the flow point of the solder used. Number 15 silver solder has a flow point of 1385°F. Re-brazing the lines to the replacement compressor is best done after cleaning the line and using a small amount of flux. I use #45 silver solder to connect the lines to the compressors on a replacement. Flow point of #45 is 1185°F. The system filter/dryer should be replaced. After all connections are made a vacuum must be drawn on the system to remove air and none condensible gases and moisture. Refrigerant charge is critical on these system and should be weight in according the the amount stated on the name plate.

Jun 29, 2008 | Refrigerators

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