Something isn't clear here. Didn't you already get a unit with those blue/gold fin protection ? why would you then need to put a conformal spray on top.
Judge me for this, but I did this to increase longevity. After my Hitachi AC started giving problems in 3y time and the frequency increased with time, I lost faith in brands, more so in the Japanese ones. Couldn't fathom that even after spending more than 50k, I got a dud machine, a victim of cost-cutting. No vacuuming(back then, even I didn't knew what was vacuuming), naked copper pipes, lazy enough to not study India's different weather setup, thereby not giving any protection for the coils That was my first AC and hence a learning curve.
So when I got this LG one, I didn't want to take any risk with what the brand advertised. Since residing in moisture and chemical prone area, I wanted to give additional protection so that there is no standing water on the ODU to cause any rusting and later on corrosion. So while spraying the top of the ODU, I decided to spray on the fins too, thinking it would prevent dirt and water sticking to the fins.
Actually, I was to go for a spray which offered protection against humidity and rusting, but the Aerol representative advised to go for conformal spray. Offcourse, he was thinking I needed a spray for the PCB, coz frankly, who gives protection to the ODU since it's already built to last.
How easy is it to access. You say you can't get to the front. Does that mean its hanging off the outside wall of your building ?
It's hanging off the outside wall of my room. There is a small passage where I can get down and clean the AC from the rear and the side. I can also clean the rear from the window but it create a hindrance. As seen, the distance between the front of the AC and the window grill is less, so I cannot get my hands in there, let alone a screw-driver. Refer images below.
The dirt ain't sticky in the summers. During monsoon, when the rain trickles down from the top of the building to the bottom, it brings water mixed with dirt. On landing on the ac and the fins, water evaporates away with heat and wind, leaving behind dirt which becomes dry and starts sticking to the fins.
If you seen Charlie's video, he has dry dirt clogging his fins given he lives in Delhi. So it can be easily removed with water. Also the rain intensity is less in Delhi so the exposure to dirt laded water is low. But that is not the case here cause the monsoon lasts for a good 3 months with very heavy rains in July.
Easiest way to remove sticky dirt is to use a
pressure washer or any
jet wash.
Wouldn't the Karcher pressure washer be a overkill for the fins? I don't think the fins would last long under such pressure. I had given a thought on the jet wash, but again thought the garden hose is the best as you can control the pressure to minimise the impact on the fins.
The one from KWEL seems have much lower pressure which would be tolerable by the fins.
How do you clean the dirt on coolant pipes? I am seeing some buildup from the rear.
The value of accurate numbers at the beginning is to get a baseline you can rely on and compare with years later. How it performs when new at a set task compared to 3 or 5 years later can alert you to any impending problems or reassure that all is still good. I'd get those meters since I find you are quite interested in this data.
Can you give a personal example from your experience? A simpler one to actually help me understand the versatility of having such a meter. Also, does the RMS meter store value for 3-5y long? Any particular model you use. I have seem YT videos showing power consumption using Meco RMS Energy meters.
