CLEVELAND RANGE OGB 20.20
SEQUENCE OF OPERATIONS
When using these instructions refer to the OGB 6.20 wiring schematic.
1When 120 VAC is applied to the combi, it is sent to the Power Control Switch (S1).
2When the Power Control Switch (S1) is closed a The red light in the switch is energized.
b 120 VAC is sent through the line filter (Z1) then through the 20 amp fuse (F10.1) to terminal L1 on the Motor Drive (U10.1)
c 120 VAC is sent through the line filter (Z2) then through the 20 amp fuse (F10.2) to terminal L1 on the Motor Drive (U10.2)
d 120vac is sent through the 2 amp fuse (F1.1) to
•To terminals 1 and 2 of connector X1 on the Upper Hot Air Power Burner Control (U20)
•To terminals 1 and 2 of connector X1 on the Steam Power Burner Control (U21)
•To terminals 1 and 2 of connector X1 on the Lower Hot Air Power Burner Control (U22)
•The 12 VDC Power Supply (G1)
◊12 VDC is sent to terminals 1 and 2 of connector X28 on the Gas Board (A20)
◊12 VDC is sent to terminal 3 and 4 of connector X10 on the Control Board (A10)
•To terminal 1 of connector X12 on the Control Board (A10)
eWith 12 VAC to the Control Board (A10) The Operation Board (A11) is energized
•An alarm will sound for one second
•All the LED’s and the display will energize one at a time.
•“STARTING” will be displayed for 3 seconds
•“Please wait” will be displayed
•The international model number will be displayed
•The time and date will be displayed and this will continue until the on/off switch is depressed.
3When the ON/OFF is depressed with the combi in the steam mode
a After a date change (the first time the combi is turned on) the display will ask “Generator Flush?”. If no answer is given in 10 seconds or a yes is indicated the flush will begin.
•120 VAC is sent from terminal 1 of connector X13 on the Control Board (A10) to the Generator Pump (M4).
•As the water level drops below the probes the fill solenoid (Y3) will energize. This rocking of the water will help flush scale from the generator.