Are different cooling capacities indoor unit and outdoor unit of split air conditioner compatible?
Only in actual operation and then only if the evaporator coil (indoor) is larger that the condenser (outdoor). However the efficiency would be affected greatly. These are designed as a matched system. If the indoor coil is too small all the liquid is not converted into a gas (hence evaporated) and you will get liquid coming back to the compressor. You probably know that you can't compress a liquid so what do you think would happen when it tries? Kaputski ! I have seen in my years many people being sold new outdoor units of higher efficiency with no new indoor coil. One can change out a condenser in an hour but changing the indoor unit can be a day. It is the least profitable part of the job. So in this instance it may work but not efficiently. The two have to match for you to save money on your electricity with a higher seer unit. Seer stands for Seasonal Energy Efficiency Ratio. It is the means they came up with to help the public understand in a simple number on how efficient their unit is, taking into consideration all the factors that go into determining it. In simple general terms it means that every 10th of point it is 10% more efficient. So a 16 SEER is roughly 10% more efficient than a 15 SEER. this makes it easy to understand the cost. If your old unit cost you $.50 per hour your new one will cost $.25 if it is 50% more efficient. So if you were thinking of saving money by just changing the outdoor unit, don't. The only money you will save is on the initial cost.
Rheem RBHC-17J14SFA HVAC unit not cooling; pipe frozen?
We have a Rheem RBHC-17J14SFA and the AC won't come on right. When I turned it on initially, it cooled for several hours but then the house started to get even warmer than it was outside. We called our HVAC tech but in the meantime, I cleaned the thingy (sorry for using such a technical term, lol) that's attached to the unit that drains water to the outside and then the unit seemed to run fine yesterday. I called him to cancel since it seemed all was well. Now of course, it has started again. Also, I noticed that the large insulated copper pipe has a build up of frost, both inside and outside the house. It only seems to have frost forming in the areas that aren't covered with the black insulation though. Any help or insight would be greatly appreciated!
Does Fan-Blade Pitch matter on an A/C Outdoor Central Air Unit?
Probably not. The heavier pitch will work the motor harder and cause it to trip on it's internal overload, if it's got one, or worst case burn up the motor. You can usually get away with increasing the load a little, but going from a 20 to a 28 degree pitch is a pretty big jump. If you have an amp meter, you can look for the rla on the motor nameplate, and compare it to actual amp draw. Should be no more than rated amp draw. Some motors with a higher service factor will let you get away with going over the rla by 10% or so, but that'd be rare on a residential condenser fan motor. I'd see if I could return the blade and get the correct one. Hope this helps.
Does placing the outdoor unit of split-type air conditioner below (at a lower level) an indoor unit affect its cooling?
The outdoor unit is the compressor+condenser. It pumps liquid Freon to the indoor unit (evaporator). I think it is designed to pump the liquid up a certain height already, so it should not be a problem to have the indoor unit higher.The key is to keep the outdoor unit in the shade because it is already trying to cool the gaseous Freon that is coming from the indoor unit. Don't make it work any harder.
Can R22 coil be used with R410-A condensor?
R-410a operates in the same way R-22 does but it will be at higher pressures. R-22 systems are not designed to operate at the pressures R-410a displays. You will need to replace the indoor evaporator coil with one designed for the greater pressure.
How do I determine if a an AC's contactor is bad?
Does just the fan come on when you press in the contactor? Or does the fan and compressor start? And why are you manually pressing the contactor? Does it not pull in on its own when you initiate a call for cooling? If by pressing the contactor and the fan and compressor start, that tells us the compressor, fan, and capacitors are good. If the compressor does not start, then you may have a bad cap. or a bad compressor. Also check for burnt wires at the terminals. If the contactor will not pull in on a call for cooling, you need to check for 24 volts at the coil. Even though the contacts are pitted, current is still getting through because the fan is starting. Would not be a bad idea to replace it anyway. If you are getting 24 volts at the coil and the contact is not pulling in, replace the contactor. If you don't, check the low voltage wire to the condensing unit and make sure it is not broken. Make sure you have power at the furnace. Make sure the blower door is on securely. There could be a blown secondary fuse or a bad transformer on the furnace. Possibly even a bad thermostat. Some condensing units have low pressure cut outs which interrupt the low voltage circuit if refrigerant pressure is lost, so if it has one of these switches, it could be low on charge.
Why is my air conditioner making a dripping noise?
There are 4 reasons why an air conditioner makes a dripping sound:· Water formed by condensation needs to drain away. If the drain is blocked, water can drip off the sides of the unit. Unclogging the drain should fix the problem.· Air conditioners require water to function properly. If the amount of water entering the unit is too high, it will leak out. Checking the water feed rate and setting it correctly should stop the leak.· If the unit is not installed correctly the problem can occur. Proper installation requires that water that collects be able to drain out easily. If this does not happen, it will start dripping out. In such cases, the solution is to re-install the unit correctly.· If the external temperature is too cold, ice can form on the cooling coils and when the unit is switched off, it will melt and start to drip.A professional HVAC company will be able to diagnose and rectify the problem.
Why is my air-conditioner not draining water?
Hello! In order to fix your air conditioner problem, you may need to clean your A/C unit condensate drain line. The condensate drain removes condensation produced by your air conditioners evaporator coil. If the condensate drain isn’t cleaned, mold can grow inside the drain, causing humidity, odors and water damage. Also, if the drain is clogged, it will prevent water from draining so, you may need to clean out the drain.How to Clean your Air Conditioner Drain:Turn off your A/C unit and locate the condensate pan.If there is water in the drain pan, than your drain line is most likely clogged. Use a rage or a handheld shop vacuum to remove the water.You can use the shop vacuum to suck out the contents of the clogged drain, let it suck it out for about a minute.Next, locate the access point in the drain line, should be a T-shaped vent cover. Remove the cover and inspect the drain, use this to flush the drain with vinegar to remove odors.Let the solution sit for 30 minutes then flush the pipe with water and have someone watch the pipe to see if the water is running.If you are still having problems, check out our website Point & Click Appliance Repair for more repair help and for any parts you may need! We hope this will help you fix your Air Conditioner unit.
Where is the high pressure reset button on a Rheem Classic outside A/C unit Model RAMB 036JBZ?
Look inside the outdoor unit for this: http://americanhvacparts.com/Merchant2/m... You have to cut the power OFF at the disconnect, located on the house. If your system keeps tripping on High Pressure, you have some problems, most commonly: Too much refrigerant Dirty condenser coils and fins Damaged copper lines Metering device problem Filter/dryer problem Compressor If the outdoor unit is not coming on at all, try flipping the breaker off and on. Make sure the air handler door is closed. Test the fan only to see if it comes on. Put in a clean filter ! If still nothing is happening, there could be bad fuses in the disconnect, a low voltage problem with the transformer . . . many other issues.