Fruit Trader

TPI Luxuria - concrete tile Maybe...

I guess as a child, the guy in the OP video was told not to throw his toys when they don't perform as expected. Patience is a virtue.

There are so many factors to consider in the roof tile versus sheet material heat absorption and reflection argument. Not easy to summarise, and unless a particular roof design, location and style is used, the argument could go on for many pages.

You are not alone when it comes to understanding shiny side up or shiny side down because logic tells us we should reflect those bad rays back in the direction from which they came. When it's not practical to add a reflective surface on the sunny side we can limit heat emitted inside by changing the surface facing into a room.

Looks like Krathing Lai Beach near to the coastguard station.

Be aware that the roof structure might not be up to adding much more load. Reducing emissivity is very effective and might be a lightweight cheap solution if it can be made to look tidy. Material with shiny side facing into the room achieves this.

Looking at even the lowest compressive strength value of AAC blocks available in Thailand, probably no when considering your light roof load. But to keep everyone's nerves in check and avoid having to form columns, you could set two readily available precast columns into your slab to form the corners then fill in with lightweight blocks. Photo of precast columns. Or, keeping to the no column theme, consider the same method as our work sheds which were constructed on rafts using hollow blocks and bars in vertical downpours. Bit of an overkill for a 4x4 extension though. Photo shows start of our smaller shed using 150mm blocks. The larger shed 8x20M uses 200mm blocks.

I seek a lesson. A little reading at the UK Forterra (block manufacturer) website shows their lightweight block includes autoclave time in the manufacturing process. What is the difference between the Thai autoclaved block and the UK autoclaved block? Compressive strength ratings are similar for the various standards available in each country. Laying of these blocks also varies between countries, with some using a glue mix and others standard mortar mix bed on walls that appear to be carrying a second floor load. I include video showing the UK method of regular mortar bed.

Interesting because triacs are born leaky. Some triac failure conditions in air conditioner fan control = unacceptable leakage, half wave, short or open. Fail closed = common. Leaky triacs available upon request, shipping negotiable.

The indoor unit fan not stopping when off button pressed is a common fault on AC's that electronically switch the fan using a triac (electronic switch). The triac becomes leaky or fails completely resulting in a constant connection from power line to fan motor. The usual fix is to replace the control board or in some cases the board is taken away for component level repair. The average cost of Samsung control boards is around 1800 Baht plus how much the install throws on top for the service. Its a good idea to disconnect AC's in rooms that are not used for long periods ideally via a double pole local isolator. This isolation takes away the standby power consumption and limits electronic damage from line spikes and surges.

You would get the performance of an electric motor, and the convenience of an ICE along with the series connection losses. Any disadvantages or inefficiencies in the diesel electric system are in many applications far outweighed by the fact that electric motors can deliver very high torque on demand (to multiple axles if required) without the need for complex gearbox and clutch arrangements. Applying this series technology to cars and adding a battery raises some efficiency questions around the regenerative systems being capable of compensating for efficiency losses during all driving conditions. A series connected hybrid car would be fantastic if it continually travelled uphill unloaded and back down with a full load.

Restricted air flow or fan speed problem, get it serviced ASAP.

According to our in house guru there are several variations of the Mitsubishi single phase motor with two capacitors. The video below should provide clues to how your version is wired. The Mitsubishi Super Line series have dual voltage (220/380) 3 phase variants in the same frame type which would be worth investigating if a change to 3 phase is preferred.

To try the VFD with capacitors in place, simply connect the existing motor supply terminals to V and U on the VFD leaving W not connected. Trying without the capacitors will require you making a sketch of the motor circuit then wiring without capacitors and centrifugal switch. Even though U1 U2 Z1 Z2 are labelled in the terminal box, some motors wire the centrifugal switch back in the motor case and not at the terminal box so its important to trace and sketch the component connections. There will be a cover near or at the rear of the motor to locate the centrifugal switch. If you want to skip using your existing motor, 220V 1.1Kw three phase motors with 90L B3 frame are readily available. Having three balanced windings in the rotation really is the best and most efficient way to go.