Power Supplies - Norcold EV0041 Service Manual

POWER SUPPLIES
Description
The DC power supply, AC power supply and interior light
power board are mounted on top of the refrigerator cabinet.
See Figure 5 and Figure 6. The refrigerator must be removed
from the enclosure to service, troubleshoot, and replace
these components.
DC Power Supply
The DC Power Supply is rated for 12 or 24 Vdc operation.
The minimum voltage required for operation is 10.5 Vdc;
maximum is 30.5 Vdc. The power switch/thermostat control
and power Indicator Light (green LED) are components of
the DC Power Supply. See Figure 5 and Figure 6. Figure 7,
Page 6 shows the DC Power Board and its connectors.
Fuses DE0041/EV0041
The DE0041/EV0041 DC power supply has a 10 amp fast
acting blade-style standard automotive fuse (red) located on
the side of the power supply and a 10 amp fast acting AGC
style in-line fuse on the negative wire.
Fuses DE0061/EV0061
The DE0061/EV0061 DC power supply has a 15 amp fast
acting blade-style standard automotive fuse (blue) located
on the side of the power supply and a 15 amp fast acting
AGC style in-line fuse on the negative wire.
DC Power Supply
Interior Light
Power Board
Figure 5. DE0041/EV0041 power supplies arrangement.
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DE Models AC Power Supply
DE models power supply is rated for 120 Vac. It requires a
minimum voltage 108 volts; the maximum is 132 Vac. It
supplies 35 to 47 Vdc to the DC power supply and interior
light power board. See Figure 5 and Figure 6. Figure 8,
page 6 shows the AC Power Supply and connectors.
EV Models AC Power Supply
EV models power supply is rated for 240 Vac. It requires a
minimum voltage 205 volts; the maximum is 253 Vac. It
supplies 35 to 47 Vdc to the DC power supply and to the
interior light power board. See Figure 5 and Figure 6. Figure
8, page 6 shows the AC Power Supply and connectors.
Interior Light Power Board
The interior light power board It supplies 12 Vdc to the food
cabinet light and the divider heater (DE0061/EV0061
only).The circuit is protected by a 1-amp AGC fuse. The
fuse is on the circuit board. The interior power light board
and connectors are shown in Figure 9, page 6.
Figure 6. DE0061/EV0061 power supplies arrangement.
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