Fruit Trader

Both TCL and Hisense brand portable AC's have external vents and provision for external condensate drain line. Hisense model AP-08CR TCL model CPA/SL2

I was more interested in the constant current because the inrush current which might well reach 100 amps on some guns will only last for a few milliseconds.

I am no airsoft expert but would make a guess that your 3 cell 18650 pack will be handling short pulses of approx. 10-15 amps. Inline 18650 pack cells are joined using short strips folded after welding. The highest resistance would be the nickel strip returning to the connector. Remember that strips can be doubled up to increase capacity so a high capacity welder is not always necessary. I have a Fnirsi SWM10 (.25) which has been a decent tool and used to build several power tool packs without any issues. They can be found on most platforms cheaper than at the Fnirsi website. Doubles as power bank when not welding. https://www.fnirsi.com/products/swm-10 Cells, I have use NCR18650B for most projects.

This model pump (Hitachi WM-P150XX) has a combined flow/pressure switch device which attempts to deliver constant pressure and reduce cycling. If this device becomes defective or clogged pump operation can become erratic. Top of module can be removed to clean and inspect components inside. module can be removed to clean and inspect components inside.

Yes it will from AC peak voltage and diode magic. I found a video from tinkerer Big Clive that kind of demonstrates the idea using both sides of the AC cycle.

The current would be in the microamp range if a LED was used as a mains tester. Consider the following :- A much safer method for test screwdrivers is to drive a LED with a battery and detect mains voltage with a sensitive transistor circuit.

The answer might be in the difference between vented and unvented tankless heaters explained by @Crossy in the thread below.

The recent Wiki article has detail about Taleb al Abdulmohsen past in the suspect paragraphs. https://en.wikipedia.org/wiki/2024_Magdeburg_car_attack

Family in Chanthaburi use high pressure spray pumps which is where I picked up the info. The oil you show should be fine for your pump.

The 4T oil is for the 4 stroke engine. If the automatic transmission fluid is for the pump then it is incorrect. Use SAE40 pump oil. The piston lubrication cups require grease.

If you provide the pump with enough direct solar panel power the pump should run but its a terrible method. Solar well pumps operate best when there is a power point tracking controller in between pump and panels. The video below might explain why you are having problems with your pump directly connected to a solar panel.

Thailand has many written standards that are rarely followed. Example TIS 11-2553

On that note, its would be a good idea for the OP to check all existing surge devices have the essential solid ground connection.

Here is link to Thai 3M Filtrete website showing split air products. https://filtrete.3m.co.th/3M/th_TH/filtrete-th/products/air-conditioner-cleaning-filter