Switching Glycol your Alde cantralvarmeanlæg.
Many campers have found out how much comfort you get with central heating in a caravan.
A Alde central heating system is very efficient central heating systems, can browse. controlled by the desired temperature you want in your caravan. Once you tried heating in a caravan is hard to do without, the answer to a radiator system in a house. Today there are central in many caravans, also small caravans.
This article contains information about:
- How you can check if there glycol (coolant) sufficient protection against frost and against rust and corrosion.
- Substitution of glycol (coolant).
1) How you control although there glycol (coolant) sufficient protection against frost and against rust and corrosion:
There are two things you should be aware of regarding glycol (coolant) when you have central heating systems.
1. Is liquid glycol (coolant) frost adequately secured
2. Are glycol liquid (coolant) – Adequate protection of obstructive substances in the liquid, there against acts rust and corrosion
Are glycol liquid frost secured enough:
You can even check your glycol (coolant) is frost proof enough, there is a coolant tester (densimeter) which tests how much your glycol (coolant) is secured to the freezing temperatures- Coolant tester shows the coolant freezing point:
• Måler ethylenglycol/methanol i C°
• Green scale of hot glycol and white scale for cold glycol
A coolant tester can eg be purchased from Harald Nyborg to approximately. kr. 19,95,- i 2016 prices.
Glycol liquid is added the corrosion inhibiting substances in the liquid, that prevents rust and corrosion of your Alde central heating systems.
Glycol liquid added corrosion inhibiting substances, slowly degraded by heating, Therefore, one should shift glycol each 2-5 years depending on the quality using. The less often you need to change glycol fluid due to protection against frost. The replacement was due mostly because glycol liquid corrosion inhibiting substances decompose, Also glycol liquid becomes more aggressive (pH value) to metals or rubber or, due to the nedbydes. same.
You can even check glykolvæsken has become too aggressive, and should be changed. Cooling Liquids must be alkaline, and having a pH of greater than 7 – Normally 8-10 pH value.
For little money, you can even check the pH value in your glykolvæske, and then see the exchange must be made.
You can use litmus which is a blue dye, is extracted from a number of lichens. The dye has previously been used for coloring of food, but is now used mainly as acid-base indicator, because the color is blue in alkaline liquid (over pH 8,3) and red in acid medium (under pH 4,5). Litmus paper is paper impregnated with litmus.
If you drip some liquid at a pH paper (lakmuspapir), will see a color forward, showing the liquid pH. Rather simple and quick test of whether your Glycol liquid has been too aggressive (acidic cf.. pH scale).
Showing blue litmus paper red color is your Glycol liquid sur, and should be changed immediately, the color blue is your Glycol liquid alkaline, and are not aggressive – That means it does not have to be replaced if it keeps frost protection, for example -35 grader.
Litmus paper is one of the best known indicators, used in the chemical. The original color of the litmus are blue but during the preparation, is the red litmus paper mixed with an acid to turn it red. When red litmus comes into contact with a base, it returns to its original shade of blue.
base bitter taste and feel smooth ; strong can burn skin. Syrian taste sour and have strong reactions to metals, and remember it with the strong acids can burn you .
Lakmuspapir 20 PCS. for the measurement of pH is seen on the Internet kr. 22,25 i 2016 prices.
|pH scale consists of a series of numbers from 0 to 14 - This is known as the pH values. pH scale is used to indicate the acidity of a substance according to the degree of available ions.|
|Out: If a product is acidic, so that it has a pH of from 1-6. Then it contains different kinds of acids. The value 1 is much more acidic than the value 6.|
|Neutral: All that is neutrally, such as hiking, has a pH of about 7. The value is then surrounded on the scale.|
|basic: The opposite of an acid is referred to as alkaline.|
|If a product is alkaline, the pH of the 8-14, so that it contains different kinds of bases, and the value 14 is much more basic than the value 8.|
It is relatively easy and cheap self-, that controls glycol liquid (coolant) for both frost protection and for the protection mod rust, corrosion and rubber.
The price is affordable compared to, that there is damage to your Alde central heating systems. When you make measurements with litmus paper, you can see when to switch glycol, because you know the pH value before replacing glycol.
You can use the same method to check the car Glycol (coolant)
2) Replacing glycol (coolant) your Alde central heating systems:
A Alde central heating systems must have changed Glycol also known as coolant. Glycol fluid is what is being warmed up in the central heating system, in the same way as a heating system in a house.
To do the replacement of the liquid Glycol, To protect your Alde central heating system against rust and corrosion too. In addition there is in the liquid Glycol, there are also substances in the liquid, that prevents rust and corrosion of your Alde central heating systems. In order to maintain proper protection against corrosion too of your central heating systems, it must be replaced.
There are various liquids Glycol, and the blue color should be replaced every ca. 2 year, and the red is long life Glycol fluid that should be replaced every ca. 4-5 year.
The actual difference between Glycol (coolants) are the additives which are added to the liquids. The additives ensures, the glycol fluid is not aggressive to metals or rubber or, due to the nedbydes. same, and prevent corrosion too.
Caravan Dealer workshop can replace your antifreeze glycol, but you can also do it yourself. The following may give you inspiration to, To switch Glycol liquid on your Alde central heating systems.
Before you start make sure you have the following ready:
• Glycol liquid
• a bin for collection of glycol which is drained from the caravan
• A container for the old glycol liquid
• A pouring jug 3 liters
• Deionized water or ordinary. selling (see more at the bottom of the page)
• The good mood 🙂
Remember you must not mix different types Glycol, For example if your plant has blue liquid color, you should use the blue liquid color, and if the red liquid color does the same apply. However, it does not matter, You mix two colors researching Glycol fluid – As long as both liquids are ethylene glycol based.
In this Kabe caravan was blue liquid in the container, and we chose to buy the red Glycol liquid longlife G12 + from Thansen. Now you are thinking enough, how is it possible to use red Glycol fluid, when one must not mix different color liquids ? – See more regularly lead below.
In order to ensure all the old Glycol liquid is discharged from the system, the system must be caused through before refilling of glycol fluid. We selected, to flush the system several times, so that the blue liquid was completely gone. The flushing is also made for, to ensure there are no old Glycol in the system containing not more protection against corrosion too. Our experience was, that the plant is not emptied 100 % by emptying out via the drain plug – See more regularly lead below.
Now we start:
Start with, that removing the veneer protective plate in the closet so you get into the container with liquid Glycol. Finer plate just lifted out of the groove, so the screws hits the big hole, then you can take the plate out – Without the need for any tools.
You now need to loosen the lid of the plastic container, and dragging 12 volt pump up the container – See picture:
The reason you should lift 12 volt pump up the container is to ensure air system network so it can be emptied when removing the drain screw.
Now we are outside and loosen the drain screw, then run the caravan Glycol out.
You must use an allen key to loosen the drain screw, make sure you have a bucket ready to catch the fluid. The drain screw is located under the caravan near the Alde fired – See picture:
Here you see the drain screw:
Allow the liquid to drain completely finished, so no more fluid. Then remove the bucket, and install the drain screw – Tighten the drain screw with your fingers, for we must achieve several times before we can finish the job.
Now you start with, Making flushing the system with clean water without the addition of Glycol.
You use your pouring jug on 3 liter (Available at Uncle nyborg), you fill alm. pouring water into the jug for rinsing (it will only be used for flushing) – Fill max 2 liters of water in the jug, then it is easier, replenishing water in the caravan container. You are now entering the caravan, and fills the water in the tank. When there may be more water in the tank, mounting 12 It was quite pumps, and screws tight lid – Now start you fired, and your pumps flush the system out, and you find that out is still Glycol in the system even if it did not come out in the bucket first time. Old Glycol does not protect your system against corrosion too, therefore it is important everything old Glycol comes out.
When the lighthouse has been running for about. 5 minutes stop you fired, loosen 12 volt pump again, then, screw the drain screw located under the caravan (all that at start).
You continue this process than to just come clean clear water in the tank – Let fired run around. 5 minutes each time, Before bottling and filling with water again.
We had to flush the system 5 times, before it was satisfactory clean water that was in the system (container).
Now the system is flushed 🙂 , and everything old Glycol is away. Now we need to fill Glycol on plant.
Attach the drain screw, and now you can tighten it – Before we installed the drain screw, buttered we rubber gasket with plumbing fat 🙂 :
Start with, to fill 1 liters of pure glycol in container, the reason is still about. 1-1½ liter of water from flushing the system which you can not drain completely via the drain plug. That there are approximately. 1-1½ liter “pure water” back, does not matter, that's why you start to pour 1 liters of pure glycol in the plant thus becomes baldningsforholdet 1:1.
The mixing ratio is 1:1, and cause security down to 36 graders frost. You start with, to pour 1 liter Glycol into hældekanden, and then you fill 1 l of water (demineralized or alm. selling – see more at the bottom of the page) i hældekanden (mixing ratio 1:1), Thus, the liquid is mixed with water Glycol. You fill the new fluid in the caravan container, and creates a new mix as you fill up at the same place than the container is filled to just over minimum (measured by cold liquid).
Now mount 12 It was pumps, and screwing the container lid solid. You turn on your Aldefyr, and if you see the container with liquid goes under my, Stopping fired and fills the extra fluid up to between “min and max”, and then starts you fired up again.
Let Aldefyret stand, and run for about. 20 minutes now happens automatically vent, but we also chose, using the 2 bleed valves located, at the door by the sitting area as well as in the cabinet of the cubicle. You loosen the vent valve in the same way as bleeding the radiators. Leave the valve open than the liquid comes out, then tighten the valve with your fingers.
The plate is removed to get to the vent valve in the toilet room.
If there is still air in the system after about. 20 minutes, hear a bubbling sound from the expansion tank. The system should be run, until this sound has ceased. An automatic air vent on a alde 3010 is as follows, and is mounted at alde fired:
Do not forget to fill liquid, as the liquid level sinks. If there is still air in the system, you can;:
– The nose wheel lifted, as much as possible, so the cart leans future. Leave it like that for about. 5 min.
Then change vehicle position, so it tilts as far as possible in the opposite direction. Leave it like that for about. 5 min. Repeat the procedure several times, and then start heating system as described above.
Remember to check the container about to be refilled with glycol fluid, Typically, it drops slightly as the air coming out of the system. When all air is out of the system, the container should be filled up, so the liquid level is just above the MIN (when the water heater is cold), lower the pump down again, and tighten the nut to the 12 It was pumps, herfeter mounted guard plate.
Caravan central heating systems are now secure down to -36 graders frost, and the boiler and the aluminum tube is protected inside the ca. 5 year.
We have used:
• Longlife G12 + red color (from Thansen)
• cooling system protects against corrosion, frost down to -36 grader C
• Mixing ratio: 1:1 Freezeproof to -36 grader C
5 liter Glycol costs 169 kr. acquired in April 2016, demineralised water 2,5 liter ca. 30 kr..
Time spent approximately. 2 hours of work – It must of course also be cozy 🙂 .
Price for replacement of glycol fluid in a caravan dealer looked on the Internet for approximately. kr. 1.900 (2016 prices).
Apply plain tap water or demineralized water?:
We have contacted Alde informing, the system should be flushed when about. 1-½ liter residual glycol in the plant after the phaseout via screw plug.
Alde It also indicates you can use ordinary tap water, but it is best, using demineralized water.
Some of the major producers of Glycol such as Q8 Antifreeze Long Life, informs you can use tap water, softened water or demineralized.
What demineralized water?:
Demineralized water does blah., the water is completely free of calcium and other minerals. Demineralized water is only without minerals, and may contain bacteria, SVAM etc..
A small things around demineralized water. It's much more agresivt towards metals than plain saline water. The reason is that
natural water molecules bind a given quantity of salt, and minerals. By removing these salty and minerals, then these places on the molecules
is replaced by what is practically, be it the base metal.
However, since it is not pure demineralized water used in the system, but is mixed with Glycol who have protection against corrosion too, it does not matter, essentially using demineralized water, it does not contain lime.
If you live somewhere in the country, where there is a low content of lime, you can safely just use tap water from the tap. If there is a lot of lime in the water, it can be theoretically set as coatings in the system, but it's not that often you see it in pratice when mixed with Glycol.
How hard is your waterworks water?
The water in our municipality is 15 DH, which is medium hard. The scale of hardness of water is as follows (click on the picture):
You will find information on your municipality's website.
Through flushing system:
We flushed the system with plain tap water, and then applied demineralised water by filling Glykolvæske in the ratio 1:1. We did not measure how many liters of glycol plant may contain, but immediately there are about. 7 liter.