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Dacor Built-in Refrigerator Technical Orientation
Do Not
remove or install the FoodSaver™Technology (FoodSaver) drawers with power applied to the
system. Always disconnect the main power before relamping or removing a FoodSaver assembly. Main
power can be disconnected by switching the main power switch to the OFF position.
The Dacor Built-in Refrigeration MUST be secured to prevent the possibility of tipping. With the short
footprint (24 inches) and long doors it would be easy for heavily loaded doors to create an unbalanced
situation. If the system is installed into an opening less than one inch higher than the cabinet, the
opening itself can be used to prevent tipping. If the area above the unit is open to the ceiling, an
anti-tip bracket must be installed. Use the leveling system to tighten the cabinet against the anti-tip
bracket.
System Overview
The Dacor Built-in Refrigeration incorporates solid state control of all functions. All components in the
system are controlled by the Main Control Board.
There is a major division between the components used with this refrigeration product. Many of the
components are considered low voltage components while the remaining components are powered by
the line voltage. (120VAC).
One unified wiring diagram has been created for all versions of this product. When viewing the diagram,
all components connected to the left side of the Main Control Board are powered by DC low-voltage.
The components connected to the right side of the board are powered by 120VAC.
This means that the fresh food and freezer fans as well as the damper and FoodSaver assemblies are
all powered by DC. With this many DC components included in one product a robust power supply is
needed. The power supply is shown in the unified wiring diagram just below the compressor in the
upper right quadrant of the drawing.
DC Power Supply
The DC supply is powered by line voltage and pr12VDC and +26VDC to the appliance. All DC
measurements must be referenced to the DC ground. The +12VDC supply is provided through a black
wire with a white tracer (BLK/WH), any place throughout the cabinet that a BLK/WH wire is found it
will be the +12VDC supply. The black wire with red tracer (BLK/RD) is the +26VDC supply. Anywhere
the BLK/RD wire is used it is the +26VDC supply. The black wire with the green tracer (BLK/GR) is the
DC ground. It is important that any DC measurements are referenced to this line when diagnosing the
refrigeration control system.
Since a consistent color scheme is used throughout the cabinet it is very easy to determine the supply
voltage for the DC components. Starting from the top on the left side of the Main Control we find
that +26VDC is supplied to the water filter and bypass cap switches as well as the door switches. The
display PCB and customer control panel is powered by +26VDC. The fresh food stirring fan and the
freezer fan (evaporator fan) are powered by +12VDC. The FoodSaver drawers are supplied with both
+12VDC and +26VDC.
Section 2 - Technical Orientation
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