3. Prepare the Site
NOTICE: Do not install the valve under a whirlpool surround or any location where the temperature may
exceed 104°F (40°C).
NOTE: Horizontal installation within a stud cavity is shown. The valve can also be mounted vertically or
mounted to a horizontal surface. Refer to the ″Mounting Configurations″ section.
K-528-K1: This product is designed to fit within a minimum 14-1/2″ (368 mm) 2x4 stud cavity.
K-557-K1: This product will not fit within a standard stud cavity. Construct a minimum 18″ (457
mm) wide 2x4 stud cavity.
Install adequate bracing for mounting the valve. Notch the bracing as needed to accommodate the
inlets and outlets.
Install a 120 V electrical outlet within the stud framing, close to the valve. Locate the outlet above
the valve. A GFCI outlet may be required in some applications.
Cross Brace MountBoard Mount
Notch bottom brace.
2-3/4"
(70 mm)
Min
9-1/2"
(241 mm)
12-1/2"
(318 mm)
11-5/8"
(295 mm)
Drip Loop
Place the outlet
higher than
the valve.
K-528-K1:
14-1/2" (368 mm) Min
K-557-K1:
18" (457 mm) Min
K-528-K1: 14-1/2"
(368 mm) Min
K-557-K1:
18" (457 mm) Min
Kohler Co. 7 1240338-2-B
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