Norcold EV0041 - Procedure D: Measuring Power Supply Output, Compressor Running

Procedure 0: Measuring Power Supply Output, Compressor Running
A cAUTION!
Do not use a converter or battery charger to supply
DC power to the refrigerator. These devises do not
supply flittered DC power. When Using a converter
or battery charger, make sure that a battery
is
connected in-line between them.
1. Make sure power supply wires are connected to the
compressor.
2. Connect the DC power supply to a charged 12 volt
automotive battery. Observe the correct polarity
(red+/
black-) when making connections.
3. Tum on the refrigerator.
4.
Measure voltage at the compressor terminal. See Figure
15. Acceptable voltage range with the
compressor
connected:
DE0041 /EV0041
DE0061/EV0061
15 to 25 Vac.
15 to
25 Vac
If no output or voltage output range is outside the values
listed aboves replace DC Power Supply.
With the compressor connected, AC voltage across the
compressor terminals should measure the same on 12 Vdc
24 Vdc or on AC power operation.
5. Shift operation to AC power. Plugging the ACcord to a
"live" 120 Vac outlet will automatically shift refrigerator to
AC operation.
6. Measure voltage output across compressor terminals. See
Figure 15. See Step 4 for voltage output values.
If no output or voltage output range is outside the values
listed aboves replace AC power supply.
~I
Ground Wire
(Green/White)
Neutral Wire
(Black/Ribbed)
Line Voltage Wire
(Black/Quick-Disconnect)
Figure 15. Checking voltage with compressor running.
Ou t put to DC Power Supply
DE/E \/0041: 14 to 15 Vac.
DE /E \/0061 : 25 to 31 Vac.
AC Power Cord
con n ec t ed to a live AC ou tl et
Figure 16. Checking /J .. C Po\Ner Supply voltage outpu t.
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