New answers tagged

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This may or may not apply to you, but you have a newer system so there's a better chance of this being the case. Some air handlers have blowers that can operate at more that one speed, and the zone controller that you have can control these speeds (section in red under #6): Zone Controller Manual When multiple zones call for heat or cooling, the fan ...


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To me it looks like the drain line is plugged causing the condensate to build up in the air handler. Once the water level is high enough it finds a way out. You know your pump is working but now you need to make sure to clear the line from the air handler to the pump. It is quite common for dust and spores to develop blockages in the tubing and this ...


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Could be you need a new capacitor.


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The first thing to do is to read your Owner's Manual and see if it has reset instructions. If you have a new-ish unit, there may be error codes displayed on a control panel inside the compressor housing (or on the thermostat panel if there is a display there). And it should go without saying, but: check to be sure no debris is jamming the fan, that there ...


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Some component has failed in the a/c unit. This act of failing caused the breaker to trip. Now the failed component is preventing the a/c unit form starting. The unit needs checking to find out which component has failed so it can be replaced. Disconnect the supply and use a multimeter to trace the control path.


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I found: https://www.ncbi.nlm.nih.gov/pubmed/26452168 This indicates that while the gaps around a bedroom door provide enough ventilation to prevent a dangerous situation from occurring, they do not provide enough ventilation to equalize the CO2 level between the bedroom and the rest of the house when sleeping, and the difference is large enough to cause ...


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There are two separate issues with any HVAC system and carbon dioxide (CO2): Fuel Combustion This is a concern with a system that burns oil, gas, coal, wood or anything else. There are specific requirements for ductwork in order to make sure it is not a problem. This does not apply to any electric system, including a typical HVAC system when cooling and a ...


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There is a heat pump that requires no HVAC licensing to install and it has a factory warranty, I found out about this in a training class. Some of the answers here were close, there are 120v (smaller units) and some 240v units, they require a pad or house bracket like any other split system and a local disconnect for the power. Both the evaporator / line set ...


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If you keep the doors to the other (warmer) bedrooms closed, try opening them. If this helps, then a return air duct, bypass vent around the door, or a door grille could help. If opening the doors doesn't help the other rooms, you can try adjusting the vents (open more in the hot rooms, less in the cold rooms) to balance the air flow. Also check the ...


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My air con (Samsung split system) was making a whooshing sound for the past 12 mths and getting worse. I thought I was pretty good and regular at cleaning my filters but have discovered I'm not as good as I had thought. I was vacuuming them clean but noticed they were still lookinga bit grey so i scrubbed them in hot soapy water and now haven't heard this ...


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You are correct. You have two choices, neither pretty. Rewire the circuit If you are in a rental unit, this option is not available to you without landlord consent; and then; a licensed electrician must do it. Since the socket is NEMA 6-15, it is fairly likely the wire and cable behind it are 14 AWG. Open it up and have a look. If you're very ...


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The only thing inside a computer that shouldn't be greater than 37 degrees Celsius (100 degrees F) is a spinning hard drive. Instead of spending money on a cooling solution, spend the money on SSDs to replace the hard drives. Do that and you're good to go. 50 degrees C (122 degrees F) is the temperature I'd shoot to stay under. A few commenters ...


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You need an ultimate-heat-sink OUTSIDE the house Here's what you can't do: Server makes heat in box, A/C moves the heat out of the box and into the tiny-house, tiny house copes with ambient + solar load + server load + A/C load all stacking to make it so hot you can bake cookies. At that point, the A/C, will break down due to not being able to transfer the ...


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How much cooling do you need? The biggest factor in sizing a unit is the amount of heat that needs to be removed, measured in BTUs. A server (excluding "Raspberry Pi as a tiny server" since obviously that's not what we're talking about here) might use anywhere from 200W to 1,000W (possibly more). If you have 300W x 2 x 3.4 BTU/kWh = 2,040 BTU/hour. With a ...


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It is not advisable to run the a/c without a filter in place nor to run the washable one while it is wet. Damp may be OK but not wet. The best practice would be to get another of the washable filters and rotate them. Alternatively get a disposable filter that you use while the washable filter is drying. You could speed up the drying process using a shop ...


3

This is normal and trivial damage from handling. Unless it significantly disrupts airflow, it won't harm the performance of the unit by any meaningful amount. The manufacturer could put guards and ducting around these coils, however that would make the air conditioner more expensive. Was price a factor in your choice? If that is, then they had to hit ...


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You could follow the manufacturer's advice - they tend to know what they are talking about... But if you insist on trying to straighten those bent fins, then use something that will not poke a hole in any of the tubes and go gently. I have done this for similar heat exchangers with that type of fin and it is possible. Also for heat exchangers which have ...


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Yes, there is. The problem is that a mini-split is, after all, split. That means the pipes between compressor and evaporator are custom fit and routed through your house. Obviously, you can't fill the pipes until after they are fit. So if the fluid is freon, yeah, you're gonna need a license. However that's not the only way to do it. Entire Freon ...


4

I thought DIY installation of a minisplit R-410A system was allowed. The condensing unit is precharged with refrigerant, and in at least some of these systems no soldering is required to connect the refrigerant lines. One might have to have a licensed technician do any adjustment of the charge, but the refrigerant charge on board as sold is correct for the ...


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On many air handlers, there are two drain outlets. The lower drain hole is the "regular" drain that is typically hooked into the house's drain pipes somewhere. You don't see it working - it just silently drains out the condensate water. The upper hole is an overflow. It's normally routed to a pipe that will drain out of the eaves of the house or another ...


2

"Dehumidifying cool areas" is a serious trick It's a common problem in England too, where it's called "the damp". The crux of the problem is warmer air can hold more water than cool air. 100% humidity at 10C may be 30% humidity at 25C. That's how air conditioners and dehumidifiers cool the air. If they chill air to 10C, it can't hold much water, so ...


1

Draining into sinks is not ideal. You have the plumbing in an inconvenient location and it tends to accumulate mildew. Outside is probably better. One approach to dealing with the insect thing is a bell outlet with screening. Simply increase the size of the pipe dramatically at the outlet and install insect screening however is convenient.


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Air conditioners cool by running air through a cold coil (the evaporator). If the evaporator cools the air below the dew point, then water condenses, drying out the air. The excess heat is put outdoors using a hot coil (the condenser). When you run a mini-split in reverse, it changes the evaporator into a condenser, which gives off the heat collected from ...


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There are commercial spray cans of cleaning liquid for evaporator coils. I have used some and it seemed to work , but I do not remember the name. Our coil lasted 22+ years before apparently dying . Any coils I have seen are aluminum so they do not "rust".If you have red rust , it is coming from the galvanized steel water collection pan .


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I am really not sure you have asked a question. Your heading mentions a diagram but you have no diagram just pictures. So when you send in better pictures per @ThreePhaseEel request you might see if you could post up some sort of diagram. If you real question is, Why isn't my cooling coming on? Then one of the reasons is that you haven't connected you're ...


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There could be multiple issues, low Freon levels is one that can cause a low Freon pressure shutdown , this usually takes a specific amount of time based on the ambient temperature once the system has compressed the high pressure side and the suction side doesn’t have enough pressure automatic system shutdown, the second can be an iced up evaporator coil ...


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The freezing that occurs is in the evaporator coil inside the air handler. Usually this is low refrigerant charge causing the evaporator temperature to go below freezing resulting in an impenetrable mass of ice building up on the evaporator coils. The blower would then be under high back pressure. There may be a safety system that shuts off the blower motor ...


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When an air conditioner is first turned on, the compressor motor encounters high back-pressure from the warm gas, which goes down a bit while running. If nothing is broken in the AC, then perhaps there is a high initial inrush, causing the mains circuit breaker to trip. Try the following: Make sure all other appliances and lamps on that circuit are off when ...


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100 pounds is nothing for a window frame. Now if you don't have it mounted right you could break, crack or put stress the bottom of the actual window unit. This isn't a question of weight though, it is a question of how balanced it is and movement. Is a 100 pound vs 50 pound AC unit more likely to have install issues... probably.


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