Fagor HVG-10/11, Technical Manual

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15
Description of the most important components in the
Convection Ignition System (Forced air burner):
VC: Premix centrifugal fan (air blower or supplier) . (fig 28)
This is an air supplier motor for combustion.
-VF: Frequency inverter. (fig-25)
This is the electronics that changes and controls the speed of the fan motor or blower by means of a
voltage variation. We use this to define the t wo speeds at which the blower fan must work. Ignition speed
S1 and maximum power speed S2.(fig 26)
-GV1-GV2:Convection gas valve.
This is a Honeywell modulating gas solenoid valve. (fig 24) This modulates the gas opening in
accordance with the speed of t he blower fan. Valve connected by means of a rubber tube to the blower
fan by means of which it is possible to modulate the gas opening in accordance with the air pressure. (fig
23)
Valves are adjusted for each size of oven or type of gas in the factory o nly.
CEC: Convection ignition control
This is the electronics that carries out the ignition sequence (spark train - gas valve opening - flame
detection) (fig 15-16 )
Air washer: Washer that defines the amount of correct air for the furnace. (fig 29 )
Mixer: This is the air-gas mixer for combustion. (fig 28 )
BE: This is the spark plug that generates the spark for ignition.(fig 22)
BD: This is the ionisation flame detector. (fig 22)
TC: Chamber thermostat 30-270ºC
This is the electronic thermostat t hat controls the chamber temperature (fig. 56). This also has a contact
fixed at 100ºC called T100.
Description of very important components in the
Steam Ignition System (Atmospheric burner):
GV3-GV4: Steam gas valve.
Steam gas solenoid valve SIT 830.(fig 23)
CEV: Steam ignition control
This is the electronics that carries out the ignition sequence (spark - gas valve opening- flame detection)
(fig 15-16)