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COMBINATION OVEN INSTALLATION
OPERATOR’S ANUAL 1180963 PAGE 11
INSTALLATION
Step 6: Water Drain
The drain line from the oven is a 2" O.D. tube (see figure on page 9). Position the oven near, but not on top
of, an open floor drain. DO NOT directly plumb to the oven unless you also install an “open funnel”
downstream of this connection in the drain system. Make the drain line from the unit to the air gap above the
"open funnel" as short as possible. There should be no horizontal piping between the oven and the air gap
over the "open funnel." The "open funnel" is intended to eliminate any water from entering the oven because
of a blocked drain, and it also prevents any back pressure within the oven cavity. The oven must be free-
venting to the atmosphere. Any connection that allows the build-up of back pressure in the oven (such as a
reduction in pipe size to a line smaller than 2" or a 90 degree angle in the line prior to the "open funnel" drain
discharge point) may cause personal or property damage and therefore will void the warranty. This is a
pressureless, free-venting oven and will not operate properly unless the drain line is short, at a steep angle,
and open!
Water Drain Open Funnel