Installation Guide

Prepare the Site (cont.)

Carefully measure your ﬁxture before determining enclosure size. Some shimming between the stud frame

and the ﬁxture may be required. Dimensions given in the Roughing-In section are crucial for proper

installation. Construct the framing and plumbing accurately.

NOTE: When installed over drywall, plaster, or other water-resistant wall material, the wall ﬂanges should

be covered with a ﬁnish molding. This molding is not provided with the product.

IMPORTANT! Unless otherwise speciﬁed, ﬂoor support under the whirlpool must provide for a minimum

of 80 lbs/square foot (390 kg/square meter) loading.

If installing a unit with wall surrounds to a masonry wall, make provisions for plumbing connections. For

the plumbing end wall, construct a separate frame wall a minimum of 6″ (15.2 cm) from the masonry wall.

For the other walls, use 2x2 or equivalent furring strips to simulate stud locations.

If installing a whirlpool-only unit to a masonry wall, make provisions for plumbing connections and ﬁnish

wall installation. A 2x2 or equivalent furring strip around the inside edge of the whirlpool may be used to

secure the whirlpool in place. Locate the furring strip at the height needed for the attachment clips or rooﬁng

nails, whichever will be used.

If installing this unit with a shower door, refer to the shower door manufacturer’s instructions for any special

framing considerations. It may be appropriate to add studs for pivot shower door support.

2. Framing Construction

This whirlpool with apron must be attached to the walls on three sides. Attach the whirlpool using the

supplied attachment clips or large-headed rooﬁng nails. The attachment clips or nails limit the freedom of

movement for the sides and ends of the whirlpool. The wall attachment is not intended to be load bearing.

Subﬂooring must be installed. The whirlpool must be positioned to allow clearance for drainage through the

ﬂoor joists or slab and to allow convenient plumbing installation. Studs must be positioned roughly where

shown for attaching clips or fastening the nailing-in-ﬂange. Other stud locations are optional but must meet

the load-bearing requirements of local building codes. Studs must also allow for the installation of the

plumbing ﬁxtures and any shower door. Locate the shower door stud as required by the manufacturer.

NOTE: Refer to the Roughing-In section for dimensions.

Framing Installation

For installations with wall surrounds, provide support for the vertical wall ﬂanges at 33-1/4″ (84.5

cm).

Ensure that the framing is plumb and square to within 1/8″ (3 mm). Shimming may be required.

Construct 2x4 framing for your particular installation according to the Roughing-In section.

Construct an access panel to allow access for servicing the faucets and drain.

For installations with wall surrounds, cover or seal any loose material.

NOTE: For units with wall surrounds, the installation of accessories that require backing or support is not

recommended. Such installations could void the warranty.

For an installations using a shower door, refer to the shower door manufacturer’s instructions for

any special framing considerations.

Flooring Construction

NOTE: The Roughing-In section indicates the location of the whirlpool basin drain. The overﬂow drain

location is not shown. Provide a cutout in the ﬂoor large enough to ﬁt the drain assembly selected for

your installation.

Cut a hole for the drain in the ﬂoor.

1032207-2-C 6 Sterling