Viking VCFB5301 - Temperature Control Operation

Deg F Deg C K-Ohms
-24 -31 565
-22 -30 531
-20 -29 499
-18 -28 469
-16 -27 441
-15 -26 415
-13 -25 391
-11 -24 368
-9 -23 347
-8 -22 327
-6 -21 308
-4 -20 291
-2 -19 274
0 -18 259
1 -17 245
3 -16 231
5 -15 218
7 -14 206
9 -13 195
Deg F Deg C K-Ohms
10 -12 185
12 -11 175
14 -10 165
16 -9 157
18 -8 148
19 -7 141
21 -6 133
23 -5 126
25 -4 120
27 -3 114
28 -2 108
30 -1 103
32 0 97
34 1 93
36 2 88
37 3 84
39 4 80
41 5 76
43 6 72
Deg F Deg C K-Ohms
45 7 69
46 8 65
48 9 62
50 10 59
52 11 56
54 12 54
55 13 51
57 14 49
59 15 47
61 16 44
63 17 42
64 18 41
66 19 39
68 20 37
70 21 35
72 22 34
73 23 32
75 24 31
77 25 30
Operation
©2012 Viking Preferred Service 11
Temperature Control Operation
For any temperature setting, outputs will be turned off/on based on cut-in/cut-out temperature determined
by resistance levels of freezer or refrigerator thermistors.
Freezer Thermistor (NTC)
As temperature decreases, resistance increases. As temperature increases, resistance decreases.
Note: Open thermistor or thermistor circuit or a shorted thermistor will result in freezer continuing to cool
with error code displayed. The section will call for cooling 100 percent of time except during defrost cycle
Freezer temperature setting and thermistor value will determine if compressor/condenser fan and evaporator fan
switches are open or closed. Compressor/ condenser fan switch must be open for 6 minutes before switch can close
again (compressor dwell time). Refrigerator temperature setting and thermistor value will determine if fresh food
switch is open or closed. Cut-out and cut-in temperature values must be reached and maintained for 15 seconds
before output state will change (digital delay). Freezer control calibration can be adjusted in Program Mode A.