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Product Chase Temperature Thermistor
FUNCTION
Supplies input to control board to indicate chase
temperature. The control board energizes error warning
based on input from this thermistor.
SPECIFICATIONS
10,000 Ohms ± 2% at 25°C (77°F)
CHECK PROCEDURE
NOTE: Use a multimeter to check operation.
1. Reboot machine by moving toggle switch off/on
2. Inspect for correct wiring.
3. Isolate by disconnecting the wiring connectors.
4. Check continuity across the terminals with an ohm
meter.
• Resistance = Thermistor is good
• Open (OL) = Replace thermistor
NOTE: This thermistor is identical to the the cabinet
temperature thermistor. Swapping the two thermistor
connections at the IO board can be used for
diagnostics.
TEMPERATURE/RESISTANCE CHART
This chart is used for the product chase and
temperature control thermistors. As the temperature
rises at the thermistor block, the resistance drops.
If the ohmmeter reads “OL,” check the scale setting on
the meter before assuming the thermistor is bad.
Temperature of Thermistor
Nominal
Resistance
°C
°F
K Ohms (x 1000)
0° - 3°
32° - 37°
32.65 - 28.05
3° - 6°
37° - 43°
28.05 - 24.17
6° - 9°
43° - 48°
24.17 - 20.88
9° - 12°
48° - 54°
20.88 - 18.09
12° - 15°
54° - 59°
18.09 - 15.71
15° - 18°
59° - 64°
15.71 - 13.68
18° - 21°
64° - 70°
13.68 - 11.94
21° - 24°
70° - 75°
11.94 - 10.45
24° - 27°
75° - 80°
10.45 - 9.17
27° - 30°
80° - 86°
9.17 - 8.06
Chase Fan
FUNCTION
Moves cool air from the cabinet through the tubing
chase to maintain cabinet temperature in the beverage
lines.
SPECIFICATIONS
24 VDC 5 watt
CHECK PROCEDURE
1. Isolate by disconnecting the wiring connectors on
the IO board.
2. Check continuity across the terminals with an ohm
meter.
• Resistance = Motor is good
• Open (OL) = Replace motor
Содержание Multiplex Ms-8
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