The afterward is the operating arrangement of a arrangement of which an igniter is used:
- The thermostat is trigered and calls for heat
- Gas valve opens and gas flows to the burners
- The burner ignites if the gas alcove the capital burner
- The atom igniter turns off
The continuance of the atom operation accept to be aural the defined lockout timing aeon set by the manufacturer. This is provided in a blueprint from the manufacturer. This can ambit from 4 to 20 abnormal for the lockout time and can ambit from 5 to 35 abnormal for the best assurance lockout times.
The igniter is amenable for bearing the atom for absolute agitation of the capital gas burner in assorted heating accessories such as gas furnaces, gas boilers and gas baptize heaters. An igniter is acclimated to accommodate the atom to bake the capital burner flame. Some igniters accept an basic blaze sensor. If this is the case, the igniter ignites and senses the capital gas burner flame.
An igniter acclimated in a hot-surface agitation operating arrangement differs in architecture from the blazon acclimated in alternate pilot or direct-sprak agitation system. Accomplish abiding to be accurate if replacing a hot-surface igniter because they are brittle and can be calmly damaged. Also accomplish abiding your boiler has been angry off for several account so you do not bake yourself on your accessories aggravating to alter it. A absurd hot-surface igniter may still plan but it will accept a abundant beneath account life. Afterwards it is installed, analysis the hot-surface igniter for any inconsistencies in its afterglow pattern.
In cyberbanking agitation systems, a blaze sensor is acclimated in affiliation with the igniter to ascendancy the burner flame. The agitation bore provides AC ability to the blaze sensor, which the burner blaze rectifies to absolute accepted (DC). The akin of blaze accepted is abstinent by the blaze sensor to ensure blaze presence. The blaze accepted accept to be the defined minimum for the agitation module.
Mercury Blaze Sensors
Many humans frequently abash mercury blaze sensors (MFS) with thermocouples because anniversary has a agnate sensors that extends into the pilot blaze and a tube abutting the accessory to the gas valve. Moreover, they accept the aforementioned activity in the ascendancy arrangement of a gas-fires apparatus but even so, there are cogent differences.
The arch apparatus of a mercury blaze sensor accessory are a pilot blaze sensor, a diaphragm/SPDT witch accumulation amid at the capital gas valve and a alveolate capillary tube abutting the blaze sensor to the diaphragm/switch assembly.
The operation of a mercury blaze sensor accessory depends on the dehydration of mercury. The sensor end, capillary tube and the SPDT about-face are abounding with the absolute mercury. The sensor end, capillary tube and the SPDT about-face are abounding with mercury. If there is abundant calefaction produced by the pilot ablaze blaze at the sensor end of the capillary tube it will vaporize and advance the actual non-vaporized mercury down the capillary tub. This movement of the bellows diaphragm presses adjoin a non-adjustable, affected bounce astriction with abundant force to breeze the SPDT about-face from one set of the contacts to another. This action-causes the about-face contacts to move from one position to another. In an MFS accessory about-face assembly, the commonly bankrupt acquaintance opens and the commonly accessible acquaintance closes. This activity deactivates the igniter and opens the capital gas valve to acquiesce raw gas to breeze to the burners. This is afterwards the pilot blaze is accurate to be on and at a assertive temperature.