![]() Today’s air conditioning systems provide super high energy efficiency – but they won’t deliver these kinds of energy savings when paired with furnaces that use older and outdated technologies.įinding the serial number on your furnace may differ from these general guidelines, but be patient – it might take a little foraging to find it. there was a four digit date code following the serial number that was month and year. If you have an older furnace, it most likely won’t be compatible with the newer coil, and subsequently, the newer outdoor air conditioning condenser. Lennox & Armstrong: Either the first two or second two digits are the. There are two components to an air conditioning system: the cooling coil or “indoor” component, and the big gray or green outdoor unit, called a condenser. When you’re confronted with an ancient looking Lennox furnace, there’s only one place to turn. Most people don’t know that if you want to add air conditioning to your home, your furnace has to be compatible with the new air conditioning system. Rheem/Ruud: Modern Rheem systems use two styles of date encoded in the serial number. For example 1404123456 is manufactured is April 2014. The year is the first 2 and the month the second 2. Most furnaces have a useful and “safe” life between 15 and 20 years. Knowing your furnace system’s age is also important when it comes to the issue of connecting it to an air conditioning system. Goodman serial numbers are 10 digit numerical where the month and year are encoded in the first 4 digits. The model number will also be listed with this serial number, which is where you can find more information about the specific furnace or air conditioner. This number corresponds to the series of the furnace. Each of these brands have their own methods of identifying system age from serial numbers. Most Lennox furnaces and air conditioners have a serial number that is located on the unit. Here’s a diagram of the sequence from a Midea owner’s manual. The most popular furnaces that have many years in the field include Carrier, Bryant, Lennox, Rheem and Goodman/Amana. So the serial number V193157328 indicates production in 2019. ![]() Knowing your system’s age is important because it can tell you a lot about whether you might be able to get by with furnace repairs or be forced to completely replace the heating system with a new one. First, it tells you in what year the furnace was manufactured, so you can supply that information when you need furnace repair or maintenance. The first 2 numbers represent the factory where they were manufactured, the second 2 numbers are the year and the letter is the month where A is January, B is February, etc. If you live in San Diego, there are a number of benefits in knowing how to use your heating system’s serial number. How do you read a Lennox date code Modern Lennox system serial numbers contain 4 numbers followed by a letter. ![]()
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