Viking VCCU106, Service Manual

Page: 25 / 35

© 2009 Viking Preferred Service
25
Induction Switch
The purpose of the surface switch is to control the
cooking operation. Once the end user chooses a
setting, the corresponding amount of power and
cycle rate to deliver a given output is sent to the
interface board. The interface board communicates
between the indicator and the generator. The
indicator communicates if a pot is in place. The
generator receives input to power the inductor and
deliver the desired output.
Boost Function – The boost function is operated
like a normal cooking function. If the small coil
is on, the boost function will be canceled when
the total power is over 3700 watts. The boost
function has to reset if the lower wattage element
is turned off, or if the element is turned to a lower
setting of a maximum 3700 watts within the first 10
minutes of operation. The 10 minutes starts when
the 3700 watts (3200watts) is turned on. When
the lower wattage element is turned on, power
will be reduced from 3700 watts (3200 watts) to
2300 watts when the power consumption from the
generator is over 3700 watts. The boost function is
available on the RR (VCCU 30/36”), LF (VICU 30”),
LF and RR (VICU 36”) models.
To access the surface switch, remove the control
knobs, switch securing screws/nut, perimeter screws
securing main top, main top and the switches are
now accessible.
The switch is a 10K potentiometer. Measure the
resistance at different switch settings. If no reading or
an open occurs, the switch is bad. Resistance should
be approximately 12300
Ω
in off position, 10000
Ω
in simmer, 9130
Ω
in low, 8540
Ω
in medium-low,
7800
Ω
in medium, 3650
Ω
in medium-HI, and 0
Ω
in HI.
Induction Switch Resistance Chart
Setting Resistance
Off 12300 Ω +/- 50 Ω
Simmer 10000 Ω +/- 50 Ω
Low 9130
Ω
+/- 50
Ω
Medium-Low 8540 Ω +/- 50 Ω
Medium 7800 Ω +/- 50 Ω
Medium-High 3650 Ω +/- 50 Ω
High 0 Ω
Measured from positions 2 and 3
Service Diagnostics and Procedures
2 3 4 5
Test Points
1
Element Off HI 9 8 7 6 5 4 3 2 1 Simmer
210mm 0 3500 2300 1472 966 644 414 276 184 115 69 58
210mm 0 3220 2300 1472 966 644 414 276 184 115 69 58
180mm 0 1850 1850 1184 777 518 333 222 148 93 56 46
145mm 0 1100 1100 90 462 308 198 132 88 55 33 28
Max Time (min.) 0 10 90 113 139 170 212 260 318 402 520 520