How to correctly pull new thermostat wire for Honeywell Wifi Thermostat. The customer’s new thermostat requires a common for power. Always make sure to turn off the breakers and to pay close attention to the existing wiring, taking a picture is always helpful. When checking your wires you can check them at the condenser to make sure that the original thermostat was wired in correctly. A good trick to use when running new thermostat wire through a wall is to use the “cloths hanger trick”, this will help minimize damage and will allow you to quickly determine if the positioning of the new hole will work based on your surroundings. Always check your wire match up with the new thermostat, the common is almost always required for wifi thermostats, that includes the Honeywell Wifi Thermostat (RTH9580WF) and the NEST, the Lyrica thermostat is one of the few that does not require the common. Always follow industry standards with the wire colors, Green is for the indoor blower, Yellow is for the compressor, Red is hot from 24 Volt transformer, White energizes the heat and if you have a heat pump the orange energizes the reversing valve. Always strip your wires and make sure that they are tucked in neatly, this will help you avoid mistakes. Always save your extra wires, never cut them off.
Jones Air Conditioning
** Please do not attempt this at home. Only a Licensed HVAC technician or Licensed Electrician Should Attempt what is shown in our videos. They are just for reference only.
Duct design is a very popular topic in our industry that does not get covered often, a lot of people are confused on what ductwork to use on what area. They do not understand that if the static pressure is too low you will hear it blowing too hard, or sucking in too hard, this could mean that the system is in pain and could shorten the life of the equipment and can cause high head pressure on the compressor, over heated coils and frosted copper lines if the system is undersized. Other issues that could happen are lower efficiency, high energy bills and shortened life of the equipment. The different flex diameters include flexible ductwork from a range of 4” up to 20” and there are many manufactures, Hart and Cooley, Thermaflex, Goodman Flex, Thermafoil, Flex Master, and Ultra Duct just to name a few. We recommend using the aluminum foil flex because of its durability and longevity. No matter how well you design a duct system the return and supply grills have to be able to deliver the air to the conditioned space, if you have supply or return grills that are 3/8” or less they need to be replaced to a minimum of ½” width in order for the system to breathe properly. The bottom line is the ductwork should not be too small and the grills shouldn’t be either to achieve the maximum efficiency the system is able of providing.
Real world example of how duct design is typically done in the field, topics covered include supply ductwork, return ductwork and sizing of the return grill. A good thought is that air always follows the path of least resistance. Always make sure to take your returns back to the plenum to make sure you have the correct static pressure.
A few basic rules of thumb for duct work design and how to use tools like the flexible duct sizing calculator to determine static pressures for returns and supplies as well as being able to calculate volume, friction loss and other variables that go into duct design.
Jones Air Conditioning
Explaining what is a air duct calculator, how to size of ductwork for an area as General rule: use 1 CFM per square ft. this will help on deciding how much air conditioning goes into any room.
Make sure that your HVAC company checks all of the following items when they are performing your annual air conditioning and heat pump maintenance:
Checking & Cleaning Evaporator Coil
Checking Temperature At Supply & Return Plenums
Replacing Or Clean Owner's Filters As Necessary
Blowout Drain Lines
Checking Float Switches (If Applicable)
Checking Safety Switches
Checking System Pressures
Inspecting & Evaluating Duct-Work
Checking All Electrical Components (Tighten Connections)
Measuring Amperage Draws On All Motors
Checking Compressor Amperage
Lubricating Fan Motors
Adjusting Thermostat Calibration
Evaluating Complete System For Performance
Returning Completed Inspection For Owner To Review
Keep in mind that not having your annual maintenance can sometimes void your manufacturer's warranty and could increase the operating cost of the equipment as well as shorten its life.
Jones Air Conditioning
Today I wanted to talk about troubleshooting air-conditioning systems, I have customers call me and ask me and say my thermostat is not working, I'll ask to go to their Honeywell thermostat and check the buttons on it to make sure it is set correctly, depending on the time of the year. Last go and look at the fan switch and make sure it's set to auto instead of on, because the motor is not designed to run constantly. You have to keep in mind that the system has a built in time delay as a safety feature to protect the line set from back flooding the compressor get a chance to equalize. Another common problem that causes the air conditioner to now have power is the breaker’s tripped, for this check your electrical panel box, in this case it is a Cutler Hammer panel box, some other common brands are GE, Square D and ITE, they all operate the same way, make sure your breakers are on the ON position. It is very important to know how to pull the thermostat cover off the wall and to check the batteries. Next I tell my customers to go to their air handler and to check the float switch, you usually have two white pipes at the air handler and one of those has a safety switch attached to it. The last and most important thing to check is the filter, a good tip is to put a date on the filter to remember when it was last changed.
What I want to talk about today is mercury thermostats how they're more energy-efficient and can allow you to save up to $200 a year on cooling or heating costs. New thermostats are safer for the planet and have less moving parts, which makes them more reliable.A perfect example of a common old thermostat is the Honeywell T 87, also the White Rodgers thermostat that is featured in this video. I want to talk about how you transfer your old wiring from a mercury thermostat to a new digital thermostat.
Some of the thermostats in this video include:
Honeywell Pro 3000
Honeywell Pro 4000
Honeywell Pro 8000
White Rodgers 1F89-211
Nest 3rd Generation Thermostat
You should always pay attention to your original wiring, how each color is on a separate terminal. This will help you out when connecting the wiring on the new thermostat. Sometimes you have to flip the switch on the back of the thermostats depending on which type of system you have. If you're going from mercury to a modern age digital thermostat the process can be simple if you just watch what you're doing to pay attention.