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What is control voltage in a gas furnace?
24 volts
How does a flame rod work?
The main circuit board in your furnace sends a small ac signal to the flame rod so now you have an ac potential from the body of the furnace to the flame rod, When the flame comes on between the body of the furnace and the rod it rectifies the ac in to dc, The flame actually acts like a diode. When this dc voltage is sensed by the control board it knows there is a flame present and thus keeps the gas valve on. Hope this helps
What is flame rectification?
Flame rectification is DC electrical circuit that sends a very small voltage (rated in micro amps) from the furnace electronic board up through the pilot electrode. When pilot flame is established the flame acts as a path (conductor) which allows the DC current to flow from the flame rod to ground completing the circuit. This completed signal tells the electronic board it's ok to allow the main gas valve to open . Now your furnace pilot, or hot surface ignitor will start the main flame . To put it simple, flame rectification is an electronic way to prove pilot flame before opening the main burner gas valve. It's a safety circuit to prevent the main burner gas valve from opening if there isn't apilot flame, or hot surface ignitor established.
Is Sodium Hexa Fluoride Gas used in electrical circuit breakers?
yes SF6 gas is used in modern ckt. breaker.
Your electronic ignition furnace will not light?
Just had the same problem for a gas furnace with an electronic source to light and required a repairman. The lighter switch has frizzled perhaps due to condensation. The part was no bigger than an old cassette tape with to flat metal pieces extending out, which ignites the gas. With no service contract the part was around $250 and the call was $90 in Atlanta Ga
Is 15 amp breaker enough for a gas furnace?
Yes. It should be a dedicated circuit from the distribution panel. There should also be an emergence shut off switch outside of the furnace area . This switch allows you to shut the furnace down from a remote area if a malfunction occurs at the furnace.
Can you plug your natural gas furnace into a 120 volt receptacle?
The furnace can be but it is not a good idea. Safety code requires a disconnect switch outside the area where the furnace is situated. This switch is used for an emergency shut down in case something electrically goes wrong with the furnace. In modern homes these furnaces are wired to a dedicated 120 volt circuit from the distribution panel. From the panel, the circuit is routed to the safety switch. From the safety switch, the circuit then continues to the furnace load.
Can the surge from a refrigerator cycling on and off damage the circuitry of a gas furnace aqua stat or other electronic equipment?
Yes it can, but I will only give you clue as to why. "What does a single phase motor need to start the motor?" Extra credit!!! Does The Code require a dedicated circuit for the refrigerator? ( I might be a worse teacher than the one you have! )....pkazsr
How does the gas safety valve work on a home forced air furnace?
The gas valve is an electrically powered device that is wired at the end of a series circuit so that it can only be energized (open) if all of the safety switches upstream in the circuit are closed and the pilot flame is lit on a standing pilot furnace.
How do you identify an electric furnace from a gas furnace?
an electric furnace runs off of 208/230 Volts while a typical gas furnace runs off of 120 also a gas furnace will have a valve for the gas relay where the gas enters the furnace.
How many cubic feet of air does it require for a furnace to burn 1 cubic foot of natural gas?
9.54
Why do propane and butane gas furnace require 100 percent shut off in the event of pilot outage?
they are highly flammable
Where to get a schematic for a gas furnace?
You can find a schematic for a gas furnace on the website, Uncionradio.
How many Amperage for a gas stove?
A gas stove needs no high current. A basic 15amp circuit will suffice. Code will probably require a 20amp circuit since its in the kitchen.
How do you run gas from the furnace to appliances?
You should not run gas from the furnace to any appliances.
What electrical circuits are found on gas appliances?
Gas appliances have electrical control and ignition circuits. A gas furnace, for instance, would have a thermostatically controlled valve that would turn the gas on and an ignition circuit (in newer furnaces without standing pilots) that would ignite the gas. You can add a light circuit to the list if your gas oven has an interior light.
Where can one find gas furnace prices?
There are many places to find gas furnace prices. One can look on sites like Furnace Price Guides, Century Gas Furnace, and Consumer Reports. One can also find gas furnace prices by going to a local heating supply store.
