Erato GP20+ Service Manual download pdf (Page 20)

the burner turns off. The fan stays turned on for about 5 min. (parameter

Ò5, set by the manufacturer) so that the pellets in the burner’s head will

burn out. After the temperature falls and follows starting-signal from the

thermostat, the burner turns on again.

· If during work the set temperature goes down, the burner will turn off.

· If during rest when a set temperature is being increased, then the burner

will turn on.

· If the pellets don’t ignite, a new attempt for their burning will start

automatically.

· If the sensor does not detect any flame during work, the ignite algorithm

will start again.

· If more than few attempts for ignition appear unsuccessful, for example

if the fuel ends (parameter C1, set at two attempts), then the device

turns off the normal algorithm and a mode ALARM will start – a lamp

ALARM will light constantly which is a signal for the user that the

reason should be removed. After removing the disturbance in the normal

work, the burner starts again with its turning off and. This may be done

by the switcher POWER placed on the burner’s cover (it stops the

feeding for the logical module into the burner and clears the alarm) or

by turning off the common boiler feeding through its main circuit-breaker.

· When the electrical supply stops and then restores, the burner starts

automatic.

TURNING THE BURNER OFF. IMPORTANT! If during work you wish to turn off

the burner, this must be done in the following way: first decrease the set

temperature from the boiler thermostat through its turning in starting

position. After 5 minutes (time enough for the combustion of the pellets in the

burner), the burner turns off through its switch and the boiler respectively through

its main switch. ATTENTION, if the above sequence is not kept, the pellets burn

out without burner fan turned on (it is possible overheating and break-down of the

photosensor).

D- ÎÏÈÑÀÍÈÅ ÍÀ ÊÎÍÑÒÐÓÊÖÈßÒÀ

D. DESCRIPTION OF THE CONSTRUCTION

D-1. ÎÑÍÎÂÍÈ ÂÚÇËÈ È ÌÅÕÀÍÈÇÌÈ

Îáùèÿ âèä íà ãîðåëêàòà ñúñ çàõðàíâàùèÿ øíåê ñà ïîêàçàíè íà ôèã D1.

Êîìïëåêòúò ñå ñúñòîè îñíîâíî îò ñëåäíèòå ñúñòàâíè ÷àñòè:

· Ãîðåëêà

· Øíåê

· Ãúâêàâà òðúáà

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Erato GP20+ Service Manual Page 20