Fig.5
OFF
ON
ON
ON
OFF
Detect
No Detect
Detect
Detect
LOST FLAME
(During Combustion)
TIME CHART : MODEL SRE 250
FUELING
VENTILATION
Set Temp. - 2
°
C
4
5
3
3
3
2
4
L
4
L
4
4
3
4
4
4
4
3
2
3
4
"-- --"
Display
"-- --"
Display
E-6
T30
T37
T26
T26
T40
T16
T15
4
1.77 k
Ω
≤
BTH
≤
200 k
Ω
No
Detect
Fuel Pump
4
:
High
3
:
Med - High
2
:
Med
1
:
Med - Low
5
:
Full
4
:
High
3
:
Med - High
2
:
Med
1
:
Med - Low
L
:
Low
4
:
High
3
:
Med - High
2
:
Med
1
:
Med - Low
Circulation Fan Motor
Memory the register
value of Burner
Thermister after T13
The safety
device is
activated.
Blower Motor
No Detect
Operation Switch
Timer Switch
Tip-over Switch
High Limit Switch
Fueling
Primary
Flame Rod
Room
Thermistor
Burner
Thermistor
Operation Lamp
Timer Lamp
Fuel Lamp
Ventilation Lamp
Timer Clock
Lamp
Igniter
Deodorizing
Pump
Blower Motor
Circulation
Fan Motor
Buzzer
Display
Fuel Pump
After
T35
Note : This time chart will vary according to set condition.
-42-
