What are you looking for? Heat Pump Package Units< 1 2 3456789 > 1 posts, read 151,253 times Originally Posted by ByteRider I have been in the industry for more than 15 years on the Gulf coast and i totally disagree. Not just anyone can replace a compressor. First how do you know it's the compressor? Second, what caused the failure? Was it a burnout? Why would I need to know if it was a burnout? What must I do if it was a burnout? Not to mention the possibility of electrocuting yourself. Next you use 15% silver solder not 50%. What are the dangers of soldering? What happens with oil residue in the refrigerant lines? What happens when flame is introduced to freon and freon residue in the lines? Ever heard of phosgene gas? What about the Oxygen Depletion Potential of freon? What about how inhaling freon causes heart arrhythmia? What about refrigerant recovery and disposal? What about evacuating the system? A/C systems, are very susceptible to moisture and other non condensibles.

How are you going to purchase replacement freon with no EPA certification? What about the life threatening dangers of freon? How much freon do you add? You just can't go by the factory charge on the nameplate. You have to take into account many factors and then calculate your super heat and subcooling in order to achieve a proper charge.does an ac unit need water There are so many things to consider before trying to tackle something like this. are window ac units cheapIf injury or death doesn't deter you, then the fact that you did it yourself will probably void any warranty that come with your $1000 compressor should. 2 ton ac unit for mobile homeI can look up how to do an appendectomy online and get step by step instructions but I'm pretty sure most people would agree to just get someone who has been properly schooled and trained to do it.

This is not like changing a fuse or the oil in your car. You could die or even possibly kill someone else many different ways if you don't know what you are doing and I would never recommend a compressor change out as a DIY project for a novice. 16,739 posts, read 46,615,361 times 1 posts, read 151,139 times 9,224 posts, read 34,826,474 times Originally Posted by archcolin By yesterday's standards, a 2ton unit would probably be OK. By today's standards there no telling without a physical inspection of the home. Calculating a house for A/C requires a Manual-J worksheet. There are a lot of factors that are used in the calculation- # of doors and windows. Wall construction and insulation. compass direction (solar gain), etc. Then there's the Manual-D for the duct system. and finish all your calculations with a Manual-S. Today, there is no reason to guesstimate. By doing a thorough calculation you will have a system that works at peak performance with minimal operating expense.

2,398 posts, read 4,448,953 times Actually a license is only required if your system uses R22 freon, which of course most old systems do. If you have or are replacing with system with a R410-A refrigerant, no license is required. So long as your not touching a R22 system, your fine. If your replacing a R22 system with a R410-A system you need a licensed HVAC contractor to recover the R22 refrigerant from the old system before removing it. Originally Posted by ComfortZone1971 If you haven't mastered the mysteries of the circuit broker or equipment disconnect, you probably shouldn't be doing anything yourself. Pretty much anything you touch now a days voids the warranty. I wouldn't mass with the R22, but I wouldn't let a little thing like voiding the warranty stop me from working on it. Originally Posted by TechGromit I know the EPA would love to talk to you! You are required to have an EPA Section 608 Type II or Universal certification license to handle R-410A but no license is legally necessary for purchase.

"to handle"- means working on systems that support R-410a refrigerant. Originally Posted by K'ledgeBldr I stand corrected, I assumed since no license is required to purchase it, no license is required to install it. 1 posts, read 147,284 times 1 posts, read 144,056 times DEaler not compling with warranty 342 posts, read 1,022,362 timesWithout central air conditioning running throughout the home, residents may get uncomfortably hot and sticky during the warmer summer months. While fans can be a temporary solution, they won't do much to combat particularly high temperatures or humidity. Installing a window AC unit can be a smart choice for homeowners who are on a limited budget. Use this guide to learn more about the pros and cons of window AC units as well as the various costs associated with buying and installing them. Average Minimum Cost of Window AC Units: $150 per unit Average Maximum Cost of Window AC Units: $750 per unit Advantages of a Window AC Unit

The major advantages of having a window AC unit as the primary means of cooling a space include localized cooling, low costs and simple installation. Rather than paying to cool an entire home whenever the resident feels warm, they can turn on a window AC unit and enjoy rapid cooling when and where it is needed. In addition, installing a window AC unit is straightforward, and most homeowners are able to do it themselves or with the help of a friend. Not needing professional installation can keep costs low. Finally, the expense of buying a window AC unit is marginal compared to the cost of installing an entire whole-home split-system or ductwork to run cool air. Disadvantages of a Window AC Unit While there are advantages to have a window AC unit, homeowners should also be aware of the potential drawbacks. These include noise, uneven cooling in the home, reduced curb appeal and limited views from inside the house. The noise of a window AC unit can be frustrating, especially when used in bedrooms, as it can make it hard to sleep.

Unless there are window units in every room of the house, they can also result in uneven cooling. Since window units are visible from inside the home as well as from the exterior of the home, they reduce curb appeal and limit interior views, which can both reduce the total value of the home. Choosing the Right BTU for the Space A primary factor that will influence the cost of the window AC unit will be BTU, or British Thermal Unit, that dictates how much energy is used. To cool a small 200 square-foot room, for example, a window AC unit with just 6,000 BTUs may be sufficient. For a larger space, such as a 900 square-foot room, homeowners will need closer to 15,000 BTUs, which will increase the price of the unit and the user's monthly energy bill. Factors that Affect the Cost of Window AC Units Additional elements that might influence the total cost of a window AC unit could include the following: Size of the window AC unit Quality of the unit Whether the window AC unit is new or used