Morco FEB-24ED - Page 50

Description of functioning
technical
54
HEATING
DEMAND
Yes
Yes
Yes
No
No
No
No
Low pressure
switch closed?
RE-START
SE
QUENCE
HEATING
MODULATION
Lock out F-3
3 Min.Lock out F-2
FA
N OFF
PUMP OFF
6 Min.Lock out F-2
FA
N OFF
PUMP OFF
Flame detection within
6 secon
ds?
Open EV1 and EV2
Open gas valve at
Inigtion pressure.
SPARK Maximun 6
seconds.
Air pressure
swich closed?
FAN ON
Air pressure
switch opened?
Heating temperature <
Heating Set Point-5ºC?
Heating temperature <
H
eating Set Point-5ºC?
PUMP ON
PUMP
ON
Heating start sequence FEB-24ED
48