ELECTRIC COMBI OVENS - SERVICE PROCEDURES AND ADJUSTMENTS
B.If there is no water treatment system installed in the water line to the steam generator, then add an amount of vinegar equal to the tank volume for the combi model. See table below.
1)Add the vinegar to the steam generator through the opening in the oven cavity. Use the funnel and flexible tube provided with the oven.
| TANK | AMOUNT OF | |||
MODEL | VOLUME | SCALEKLEEN ADDED | |||
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| TO FEEDER BOWL | ||
(GAL) |
| (QT) | |||
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| (7 OZ. PACKET SIZE) 1, 2 | |||
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VCE6H | 0.8 |
| 3.2 | 1.0 Packet or | 7.0 oz. |
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VCE10H | 1.6 |
| 6.3 | 1.5 Packets or | 10.5 oz. |
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VCE10F | 1.6 |
| 6.3 | 1.5 Packets or | 10.5 oz. |
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VCE20H | 2.6 |
| 10.5 | 2.5 Packets or | 17.5 oz. |
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VCE20F | 3.4 |
| 13.7 | 3.5 Packets or | 24.5 oz. |
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NOTES: | 1. Scalekleen is also available in a 2.2 lb packet | ||||
| size. If | the 2.2 lb. size is used, do not add the | |||
| entire packet. Measure the appropriate amount | ||||
| in ounces then add. |
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| 2. Do not exceed the amounts listed in the table | ||||
| above. |
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4.Press the START button on the oven control (programmable or manual) to begin the clean cycle.
A.The door closes and locks and the buttons/knobs on keypad lock out to prevent interruption until the clean cycle is completed. No other operations can be performed for approximately 45 minutes.
NOTE: Pressing the off key will not discontinue the clean cycle or turn the oven off. If a power interruption or other malfunction occurs, the clean cycle will resume from step 5B when power is restored.
B.If deliming through a water treatment system, the steam generator begins a normal fill cycle.
1)When the proper water level is reached, the steam generator heating elements and cavity fans turn on.
C.If deliming using vinegar, the amount added to the steam generator is already at the proper level.
1)The steam generator heating elements and cavity fans turn on.
2)As the vinegar level lowers, the steam generator will then fill with water as required.
NOTE: If the cavity temperature is above the steam temperature set point, automatic cooling will occur. See “WATER INJECTION (HUMIDIFIER) under SEQUENCE OF OPERATION”.
D.The timer starts counting down and the oven will steam for 30 minutes.
5.At the end of 30 minutes.
A.Heating elements and cavity fans turn off.
NOTE: Heating elements and cavity fans remain off during “timed” drain and fill cycles.
B.Time display shows 10 minutes but does not continue counting down.
C.Steam generator drains (45 seconds on 6 & 10 levels; 60 seconds on 20 levels).
D.Steam generator fills (37 seconds on 6 & 10 levels; 75 seconds on 20 levels).
6.The steam generator drains twice more and fills once (both timed) to rinse out any remaining chemicals.
7.The steam generator begins a normal fill cycle.
A.When the proper water level is reached, the heating elements and cavity fans turn on.
B.The timer starts counting down and the oven will steam for 10 minutes.
8.When time expires, the steam generator drains a final time.
9.At the end of the clean cycle procedure.
A.The oven will beep for 10 seconds and the temperature display will show “dOnE” indicating the cycle is complete.
B.The door unlocks and opens (slightly) and the buttons/knobs on keypad unlock.
NOTE: If an error occurs during the clean cycle,
“FAIL” will display in the temperature display instead of “dOnE”.
C.If a deliming chemical was added to the water treatment system.
1)Turn the water supply off.
2)Press the relief valve at the top of the feeder bowl head to relieve system pressure.
3)Unscrew the feeder bowl from the head, remove the dip tube and re- install the cartridge.
4)Replace the feeder bowl.
5)Turn the water supply on.
D.If vinegar was added to the steam generator, then procedure is complete.
10.Combi oven is ready for normal use.
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