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How to Change Compressor Refrigerator Freezer Showcase Chiller

Easy Way to Replace Compressor

The refrigerator compressor refrigeration freezer chiller showcase must first understand the capacity to be replaced before stepping into the turn system, in this case we must know the capacity / PK Compressor.

You should note the refrigerator code / type then you ask the showroom brand refrigerator, because the size of 1 2 or 3 doors there are various sizes, Refrigerator sizes are often in use from various brands is 1 / 8pk, 1 / 6pk, 1 / 4pk and 1 / 3pk.

If the compressor you want to replace the capacity of oversize or smallness will make the performance of the refrigerator work is not optimal and affect the durability itself.

Things you need to know in the process of charging freon gas in the refrigerator, not as easy as charging freon on AC Split or AC Window, this is because refrigerator use capillary pipe which size different from capillary pipe which used in AC Split and AC window.
with a small capillary tube making it susceptible to deadlock freon flow if there is dirt carried on the freon flow.

We recommend that you replace the strainer / filter and capillary pipe with a new one if you want to fill the leaking freon gas or replace the damaged compressor with a new compressor.
How to Change Compressor Refrigerator Freezer Showcase Chiller

The tools needed in the process of refrigerator compressor replacement is as follows:

1. Welding sticks and welding equipment ie lpg tube and oxygen cylinder.
2. manifold.
3. freon R12, or freon R134A depending on the specification data found in the refrigerator.
4. Freon filling valve.
5. silver / copper welding wire or brass welding.
6. pipe cutter / cutter
7. flare-nut / flering
8. tools / lock tool

Compressor refrigerator there are 2 kinds of models, namely:

1. Compressor piston
2. rotary compressor

- piston compressors are widely used in single-door and two-door refrigerators, but on two-door refrigerators are also using rotary type compressors, in terms of quality is clearly the most reliable compressor type pistons compared to rotary type compressors.

I once replaced the refrigerator compressor with the rotary type, on the first day until the third day, the refrigerator no problem (in cold / normal).

On the fourth day the refrigerator had a dead end of freon flow on the capillary tube causing the rotary compressor to suffer damage to the valve compressor.

Inevitably I have to replace the damaged compressor with the new compressor back.

But I do not replace with the same type compressor, I replace it with a compressor piston type although I have to make additional holder because the space cradle compressor rotary so narrow.
because the rotary compressor in the refrigerator is tubular and positioned horizontally in its placement.

Compressor piston on the refrigerator, pipe output there are three fruit and five fruit.

As for the three out pipes are:
Pipe press / discharge.
Pipe suction / suction.
Pipe for freon charging.

The five out pipes are:
One press / discharge pipe
One suction pipe / suction
One pipe for charging freon.
Two pipes for cooling the compressor oil located at the bottom of the compressor.

Before we remove the damaged compressor that is by heating the pipe connection press and the suction pipe connection by using welding equipment on the compressor, unplug the cables leading to the compressor and make sure the freon on the refrigeration system / refrigerator, have you throw it all through the charging pipe , you can also remove by directly cutting the pipe connection from the end with the cutter.

Before you replace the new compressor, try to flushing the piping system, it aims to clean the pipe from all the dirt well oil, crust so that the refrigrant gas line runs smoothly.

After the compressor is detached from the holder pairs of new compressor, if the compressor you replace using the starting capasitor means there are three cables leading to the compressor terminal, if not use it means only two cables leading to the compressor.

I recommend before welding, check first and test run compressor.
because when the tip of the pipe already has a weld mark, the compressor is damaged / jammed we can not redeem it.

When the compressor can operate before you do the welding on the press pipe and suction pipe.

If the pressure pipe line is made of iron, when you are welding use borax and brass instead of silver welding, for a compressor pipe line to coalesce with a copper press pipe out of the compressor and clean the connection of paint or rust.

After the suction pipe and press pipe is finished in the dial, switch to welding pentil filling freon.
when welding the nipple, open the nipple so that the seal / rubber does not melt exposed to heat conduction, after installed and wipe with a damp cloth to heat the heat on the pentil quickly disappear, then re-install the pentil seal and tighten.

Switch to the installation of the strainer / filter, it's up to you to use a silica gel contents strainer or empty strainer / without the contents of silica gel. Keep in mind, the use of quality silica gel strainer, so that the welding process is not easily destroyed make a dead end. on the strainer / filter for the capillary pipe there are 2 holes and 1 hole (the two other holes for vacuum, 10 cm capillary cap and the end let it open do not weld)

If the capillary pipe in your refrigerator can not be replaced / heat exchanger (capillary tube is in the suction / suction pipeline) and the capillary pipe is deadlocked, you can replace it by releasing the evaporator by heating with the welding tool, Capillary pipe to more easily pull the evaporator out, if too hard you can make a hole to the back of where the location of the condenser is on the edge.

In the present refrigerator type suction pipeline / suction line and capillary pressed inside the refrigerator body.

If you want to replace a capillary tube by a drainage line or refrigerate the body with an electric drill, be careful not to touch the pipes in the refrigerator body and place the capillary pipe in the outer body of the refrigerator and plastered, then connect to the strainer and capillary pipe installed / welded, vacuum refrigerator with vacuum machine up to 30 "if you do not have a vacuum machine, do a vacuum body through the strainer hole, after the vacuum and then at a dead end.

when it is vacuumed and the needle on the manifold does not rise up to 0 psi means no leakage on the compressor pipe connection, the strainer and the capillary pipe you just welded.

but if the needle manifold is still upwards means there is still a leak, look up to meet the leak.

After there is no leakage space, operate the refrigerator, open the manifold faucet on the blue meter to the left while looking at the needle on the manifold and the freon contents slowly until the needle shows the number 20 psi, then stop. (do repeatedly do not directly fill up to more than 20 psi for the compressor does not heat quickly) chek also amperes compressor with clamp meter / pliers ampere.

look at how much freon pressure we have filled, while listening to whether there is a swish of freon flow dievaporator.

if any means the freon flow runs smoothly, refill until the evaporator flattens full of snow (this is for the one-door refrigerator)

for the two-door refrigerator we can see it from the blowing of his motor fan on the top of the door when it has been issued fog means the cooling process has been maximized.

For refrigerator freon refilling can not be done quickly and easily like filling the freon on the split ac and it takes patience if it turns out after we fill one hour later the freon flow is deadlocked.

To find out the refrigerator that stalled, when we do the charging freon and manifold already shows the pressure of 10 psi then unplug the refrigerator and see what needle manifold rises above 10 psi?
when the needle can rise up means the freon flow on the system runs smoothly.

The next process is to refresh the refrigerator until the process in the snow evaporator, and when it is completely and then look at the manifold, refrigerator gas pressure on average in the compressor machine life of 10-12 psi range. Pick the cut, cut and then weld, this is done the state of the machine is alive, because at the time of life gas pressure in a low state.

So share your knowledge on how to replace compressor, if you are less clear in practicing this article, please comment below.

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