Kohler K-438-K-NA Installation Guide download pdf (Page 4)

1. Prepare the Site

Install or relocate the water supplies as needed.

If the deck/rim thickness is less than 1/4″ (1.3 cm), install 1/2″

exterior grade plywood to the underside of the deck/rim.

NOTE: Before drilling the mounting holes for the spout and valve

body on the deck/rim, ensure that the mounting holes will not be

oversized. The diverter and valve bodies require adequate base

material strength and maximum contact area with the deck/rim.

When drilling mounting holes on the deck/rim, the maximum

diameter of the holes for the diverter and valve bodies should be

1-1/2″ (3.8 cm).

For 8″ (20.3 cm) centers: Cut two 1-1/16″ (2.7 cm) pieces of

copper tubing.

For wider installations: Cut the two pieces of copper tubing to ﬁt

the actual installation.

1-13/16"

(4.6 cm) D.

1-1/8"

(2.9 cm) D.

5/8" OD

1/2" Nominal

8" (20.3 cm) Min

1-5/16" (3.3 cm) D.

1/4" (6 mm) to

2-1/8" (5.4 cm)

Max

1-5/16"

(3.3 cm) D.

1-1/2"

(3.8 cm) D.

5/8" OD

Copper Tubing

Supplied By

Installer

*Dimension allows +/-1/4" (6 mm) handle adjustment during

handle trim installation.

X = Distance from centerline of spout inlet to front of spout base

plus 1/2" (1.3 cm).

Y = Distance between valve body centerlines varies. Minimum

distance is 8" (20.3 cm).

*1-1/4"

(3.2 cm)

1-1/2" (3.8 cm) D.

1/2"

(1.3 mm)

2-1/8"

(5.4 cm)

Max

Finished

Rim-Mount

Installation

Finished

Deck-Mount

Installation

1054252-2-B 4 Kohler Co.

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Kohler K-438-K-NA Installation Guide Page 4

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