Implementing Modern furnace operation - trying to diagnose a problem with the oven?

Before you begin, it must be said that only qualified people should try on a gas stove. Please consult a professional service provider for repairs or for the diagnosis correct!

Remember, when furnaces were easy enough? It 'was a pilot and a thermocouple, a couple of security checks, a fan assembly, a series of burners and, of course, the heat exchanger. The downside of these old stoves, the cost to operate them as efficient as a rule more than 50%. Modern ovensToday, between 80% and 95% more efficient.

Humidity Control

We will discuss the typical 80% being gas heating furnace in this article, as this is the most common out there in those days.

It is necessary for a signal from heating thermostat, is the first of what is going on, the inductor project begins to run and create a draft in the heat exchanger. If there are no obstructions in the exhaust pipe of the furnace, the inducer pressure switch on a light pressure on a small postHose, of course, have tubes free of debris or cracks. If there is sufficient depth, is this close contacts within the switch. The switch sends a signal to the control board, which is usually mounted in the fan section. There are various security checks such as, but not limited to, temperature switches, thermostats, plenum, flame sensor and roll-out switches must be closed, but when she and the control board is good, aSignal will be sent to the ignition device. There are systems of power such as power intermittently, direct spark ignition, hot surface ignition, electronic ignition, pilot and other permanent uses. Most of the ovens used at this stage ignition of the hot surface with a flame sensor. So we will focus this article on the ignition system of the hot surface using a flame sensor.

There are different types of hot surface igniters on the market. The most common is siliconType carbides, which is very brittle and breaks easily. It takes this type of carbide section that the oil from your hands will shorten the life span. This species has a duration of 3-5 years usually. There are flat and round versions of this spiral.

The next type of silicon nitride, which will last much longer and not easy to break, some of which are for 24 volt systems, as used in intelligent systems Trane Honeywell valves and 80-volt systems.

There are alsoolder systems, a hot surface igniter, the flame sensor, but do not separate when using orange lights then switch to sense flame. These systems are called radiant systems and have proven unreliable and sometimes dangerous, because they are not susceptible to fire on all burners, is only one mounted on the igniter. Most manufacturers of stove, you need a scanner to add, if you change a tax map.

Assuming that the control board "sees" all the securityThe controls are closed, and the pressure will then send a signal to the 120 volt hot surface ignitor is usually on the right side of the burner is mounted. (Keep in mind that about 24 volts ignition systems for lighting and a pilot Trane and some other 80-volt system with a silicon-on some of their models). Hot surface igniter glows orange after, you should hear a click, opening the gas valve, is to let the gas flow to the burners. It should almostInstant Ignition on all burners. The scanner is a small white ceramic electrode mounted on the left side of the burner. And 'the work of the "sense" a flame on the burner is located on the opposite side of the oven hot surface ignitor from. If there is a flame within about 10-15 seconds, turn the burner again for security reasons. Usually when an oven (3) how these cycles go, go in the castle. To keep out of it, you need the power to closeTurn oven off and on again. Scanner must be cleaned once a year as part of maintenance with sandpaper.

Once all the torches lit and running, the control board sends a signal to the fan motor to start.

Recommended, however, there are several control panels, including integrated control boards, where all functions are controlled by the board of the oven, ignition modules, there are used only for power and a separate Timer Fan control board that just started andthe fan stops and monitoring of security controls.

Before you even think of it the work of your stove, remember this is a potentially lethal device that requires a high level of training of a technician in the workplace. Maybe people want the money by saving your work, but there is much to say a proper diagnosis, let alone a reputable company to any risks to the meat of inexperienced people who cause damage to this equipment. In case of doubt, "DON" T DOIT "

Implementing Modern furnace operation - trying to diagnose a problem with the oven?