Kohler K-1166 User manual

Installation Guide

Overﬂowing Bath

Mproduct numbers are for Mexico (i.e. K-12345M)

Los números de productos seguidos de Mcorresponden a México

(Ej. K-12345M)

Français, page “Français-1”

Español, página “Español-1”

K-1166

1054216-2-A

Important Information

WARNING: When using electrical products, basic precautions should always be followed, including

the following:

DANGER: Risk of electric shock. Connect only to a circuit protected by a Ground-Fault

Circuit-Interrupter (GFCI) or Earth-Leakage Circuit-Breaker (ELCB).

WARNING: Risk of electric shock. A licensed electrician should make all electrical connections.

WARNING: Risk of electric shock. Disconnect power before servicing.

WARNING: Risk of injury or property damage. Please read all instructions thoroughly before

beginning installation, including the following requirements.

NOTICE: Follow all local plumbing and electrical codes.

Install to permit access for servicing.

A green with yellow stripe lead wire is provided within the wiring compartment. To reduce the risk of

electrical shock, connect this wire to the grounding terminal of your electric service or supply panel with

copper wire equivalent in size to the circuit conductor supplying this equipment.

A pressure wire connector is provided on the exterior of the pump or control within this unit to permit

connection of a bonding conductor between this unit and all other exposed metal in the vicinity, as needed to

comply with local requirements.

Grounding is required. The unit should be installed by a qualiﬁed service representative, and grounded.

Building materials and wiring should be routed away from the pump body and other heat-producing

components of the unit.

Important Product Information

Product Notices

WARNING: Unauthorized modiﬁcation may cause unsafe operation and poor performance of the

bath. Do not relocate the pump, or make other modiﬁcations to the circulating system, as this could

adversely affect the performance and safe operation of your bath. Kohler Co. shall not be liable under

its warranty or otherwise for personal injury or damage caused by any such unauthorized

modiﬁcation.

Product Inspection

Carefully unpack the product, and inspect the unit for damage. Return the unit to the carton during

construction to prevent damage.

Factory-Assembled Features

Factory installed components include pump, level sensors, in-line heater, submerged chromatherapy lights

(optional), control and switch. The pump and piping are factory-assembled.

Connections and Service Access

NOTICE: Provide unrestricted service access to the pump and heater. Provide unrestricted service access

to the pump, in-line heater, adjustable feet, and control box. You must construct an access panel to provide

sufficient clearance for servicing the pump, in-line heater, and control box. The access panel must be

located immediately next to the pump and in-line heater. Study the roughing-in information.

1054216-2-A 2 Kohler Co.

Important Product Information (cont.)

Electrical Requirements

The installation must have two Class A Ground-Fault Circuit-Interrupters (GFCI’s) or Earth-Leakage

Circuit-Breakers (ELCB’s). The GFCI/ELCB protects against line-to-ground shock hazard. Use a 208-240 V, 20

A, 50/60 Hz dedicated service for the pump controls. Use a separate 208-240 V, 20 A, 50/60 Hz dedicated

service for the heater.

An equipment grounding terminal is provided in the ﬁeld wiring compartment. To reduce the risk of

electrical shock, this terminal must be connected to the grounding means provided in the electrical supply

panel with a conductor equivalent in size to the circuit conductors supplying this equipment.

Install this unit in accordance with the Canadian Electric code, Part I.

Kohler Co. 3 1054216-2-A

Thank You For Choosing Kohler Company

We appreciate your commitment to Kohler quality. Please take a few minutes to review this manual before

you start installation. If you encounter any installation or performance problems, please don’t hesitate to

Company.

Tools and Materials

Introduction

Please read these instructions carefully to familiarize yourself with the required tools, materials, and

installation sequences. Follow the sections that pertain to your particular installation. This will help you

avoid costly mistakes. In addition to proper installation, read all operating and safety instructions.

All information in this manual is based upon the latest product information available at the time of

publication. At Kohler, we constantly strive to improve the quality of our products; we therefore reserve the

right to make changes in product characteristics, packaging, or availability at any time without notice.

Before You Begin

Your bath is designed for deck mount, undermount, or alcove installations.

You must install the bath onto an adequately supported, level subﬂoor.

Provide properly dimensioned framing.

Choose a ﬁll spout which will provide adequate reach and a minimum 2″(5.1 cm) air gap above the

bathing well rim of the overﬂowing bath. You may need to build up the deck material to obtain

adequate air space because the outer rim may be lower than the bathing well rim depending on the

speciﬁc area of the bath.

Follow local plumbing codes.

The bath must be ﬁlled with water through the bathing well, not the overﬂow channel.

If you plan to install a deck-mounted, hand-held shower, the diverter vacuum breaker must

maintain a minimum 1″(2.5 cm) air gap above the bath rim.

When using the K-922 or K-923 Laminar Bath Spout with drip tray K-924, the distance from the

ﬁnished wall to the outside wall of overﬂow channel should not exceed 2″(5.1 cm).

• Conventional woodworking

tools and materials

• Drop cloth

• 2x4’s or 2x6’s

Silicon Sealant 4' (1.2 M)

Level Tape

Measure Safety

Glasses Pencil

1054216-2-A 4 Kohler Co.

List of New Terms

Bathing well - The deep portion of the overﬂowing bath used by the bather.

Bathing well rim - The high rim between the bathing well and the overﬂow channel. Water will

evenly cascade over the bathing well rim and into the overﬂow channel during operation.

Cavitation - When air is drawn into the pump instead of water to a point where it impairs or stops

the pump’s ability to circulate water.

Chromatherapy control switch - Turns the chromatherapy lights on and off (if equipped).

Chromatherapy lights - Lights provided in the basin of the bath (if equipped) to enhance your

bathing experience.

Heater - Designed to automatically help maintain the temperature of the water up to 104º F (40º C)

to enhance your hydro-massage experience. The heater turns on automatically when the whirlpool

is operating, and turns off when the pump motor is turned off.

Master control - This unit is located beneath the pump. It provides the ″brains″of the system,

interpreting all incoming and outgoing signals.

Metal suction screen - The removable metal screen located over the plastic suction cover in the

overﬂow channel. The suction screen must always be clean and in place when the overﬂowing bath

is running to prevent debris from entering the water intake port and to prevent cavitation and poor

operation.

Outer rim - The rim along the outside of the overﬂow channel.

Overﬂow channel - The overﬂow water collection channel surrounding the bathing well. The

overﬂow channel collects the water overﬂowing the bathing well rim during normal operation, and

channels the water back into the piping system for recirculation.

Overﬂow channel sensors - The two metal probes located in the wall of the overﬂow channel

beneath the drain overﬂow hood. These sensors prevent activation of the pump if insufficient water

is available, and will automatically shut off the pump if the water level drops below them. The

pump will only operate when these two sensors are completely submerged.

Pump control switch - Turns the pump on and off.

Plastic suction cover - The plastic guard attached over the water intake port located in the overﬂow

channel. The suction cover must always be installed during product use to ensure user safety.

Pump - The pump circulates the water.

Wire harness - The wire harness connects all powered peripheral components (valves, pump, heater,

switches, lights) to the master control.

Overflow Channel

Sensors

Overflow

Channel

Bathing Well

Rim

Outer Rim

Bathing Well

Metal Suction

Screen Plastic

Suction Cover

Kohler Co. 5 1054216-2-A

1. Roughing-In Information

NOTICE: The ﬂoor support under the whirlpool must provide for a minimum of 3500 lbs (1588 kg).

NOTICE: The areas labeled ″A″and ″B″are recommended installation locations for bath spouts. ″B″

applies to ceiling mounted bath spouts only. For a list of bath spouts for this product, see the speciﬁcation

sheet.

Two separate 240 V electrical services are required: one for the pump/control, and one for the

heater.

Consult local and national codes for minimum air gap requirements when installing a spout on the

faucet deck.

The overﬂowing bath must be ﬁlled through the bathing well.

Hot water supply should be 70% of the capacity or greater.

The ﬁxture conforms to ANSI Standard Z124.1. All dimensions are nominal.

There is no change in measurements if connected with the drain illustrated (K-7223, K-7223M).

An access panel is required. The recommended dimensions for this access panel are 40″(101.6 cm)

Wx15″(38.1 cm) H. Refer to the roughing-in diagram for suggested access panel location.

Make sure the ﬂooring is in good condition and offers adequate support for your bath.

IMPORTANT! Verify that the subﬂoor is ﬂat and level. This will help minimize the leveling adjustments

necessary for proper product performance.

51-7/8" (131.8 cm)

103-3/4" (263.5 cm)

41"

(104.1 cm) 20-1/2"

(52.1 cm)

85" (215.9 cm)

3" (7.6 cm)

2-7/8" (7.3 cm)

1" (2.5 cm)

31-13/16"

(80.8 cm)

26-1/2"

(67.3 cm) 23-11/16"

(60.2 cm)

1-1/2" OD

1" (2.5 cm)

No change in measurements if connected with

drain illustrated. (K-7223 or K-7223M)

Cut-out: 102-1/4" (259.7 cm) x 40" (101.6 cm)

Pump/Control Access

40" (101.6 cm) W x

15" (38.1 cm) H Min

7" (17.8 cm)

1054216-2-A 6 Kohler Co.

2. Construct the Stud Framing

NOTICE: Provide unrestricted service access to the pump, in-line heater, adjustable feet, and control box.

You must construct an access panel to provide sufficient clearance for servicing the pump, in-line heater,

and control box.

Construct stud framing designed for your particular installation. The overﬂowing bath can be

installed in a deck, undermount, or alcove installation.

Frame the ﬂoor, or construct a frame for a raised installation in accordance with the roughing-in

information.

When constructing the framing, allow for the thickness of sub and ﬁnished deck materials.

Framing should be of 2x4 construction.

For undermount installation, allow for the thickness of the planned deck material, and provide

proper support.

Do not support the bath by the rim.

When planning the stud framing, take into account the required 2″(5.1 cm) air gap between the end

of the ﬁll spout and the top of the bathing well rim. Take into account the thickness of your planned

ﬁnished deck material, and construct the framing and deck material with this minimum air gap in

mind.

Deck

Undermount Alcove

Kohler Co. 7 1054216-2-A

3. Install the Rough Plumbing

IMPORTANT! Choose a ﬁll spout which will provide a minimum 2″(5.1 cm) air gap above the basin rim

of the overﬂowing bath. In addition, if you plan to install a deck-mounted, hand-held shower, the diverter

vacuum breaker must maintain a minimum 1″(2.5 cm) air gap above the bathing well rim of the

overﬂowing bath.

Position the plumbing. Position the ﬁll spout supply so the spout will reach beyond both the outer

rim and the bathing well rim. Water from the ﬁll spout must be directed into the bathing well to

ﬁll the overﬂowing bath. The overﬂowing bath should never be ﬁlled by directing water into the

overﬂow channel.

Cap the supplies, and check for leaks.

4. Prepare the Unit

Carefully lift the overﬂowing bath out of the carton.

Identify the box located inside the overﬂow channel. This box contains the metal suction screen, and

must be saved for use with this product.

Install the drain according to the drain manufacturer’s instructions. Do not connect the trap at this

time.

Position a clean drop cloth or similar material in the bottom of the bath. Be careful not to scratch the

surface of the overﬂowing bath.

Bathing Well Rim

Bathing Well

2" (5.1 cm) Min

Outer Rim

1054216-2-A 8 Kohler Co.

5. Position the Unit

IMPORTANT! Risk of product damage. Do not lift or support the overﬂowing bath by the pump or

piping.

NOTE: Do not use adhesive or a cement or mortar bed to secure this product to the subﬂoor.

With help, carefully lift the overﬂowing bath into place. Using metal plates under the adjustable feet

is recommended and will make leveling the bath easier.

NOTE: If you do not have a 6’ (1.8 m) level, go to the next section.

Level by turning the adjustable feet up or down with the wrench (7/8″) attached to the harness near

the pump. Make sure all six adjustable feet rest directly on the subﬂoor, and make sure the bathing

well rim is level within 1/8″(3 mm) in all directions.

Cut and discard the banding straps from the pump.

Make sure the rubber isolation feet are in place.

Insert the drain tailpiece into the trap.

Pump Banding

Straps

Adjust Feet

Check Level

Cut Straps

Wrench

Metal Plate

Adjustable

Foot

Kohler Co. 9 1054216-2-A

6. Level the Overﬂowing Bath (without level)

NOTICE: You do not need electrical power for the unit for the following leveling procedure.

Insert the drain tailpiece into the trap, and connect the drain to the trap according to the drain

manufacturer’s instructions.

Close the drain, and plug or cover the suction cover to temporarily make them watertight.

Use a hose and fresh water supply to ﬁll the bathing well to the bathing well rim.

Observe the water level (grey shading in illustration = water level) in relation to the bathing well

rim.

If the water evenly cascades over the entire rim of the overﬂowing bath, no adjustments are needed.

The overﬂowing bath is level.

If the water level is uneven and only cascades over sections of the rim, use the wrench to turn the

adjustable feet up or down as needed to obtain a uniform water level.

Open the drain, and unplug the suction cover to drain the bathing well.

IMPORTANT! Allow adequate access to each of the six adjustable feet until after you have test run your

bath.

7. Install the Plumbing

CAUTION: Risk of property damage. Ensure a watertight seal on the drain connections.

IMPORTANT! Choose a ﬁll spout which will provide adequate air space above the bathing well rim of the

bath. You may need to build up the deck material to obtain adequate air space because the outer rim may

be lower than the bathing well rim. In addition, if you plan to install a deck-mounted, hand-held shower,

the diverter vacuum breaker must maintain a minimum 1″(2.5 cm) air gap above the outer rim.

NOTE: An access panel will simplify future maintenance.

If you have not yet done so, connect the drain to the trap according to the drain manufacturer’s

instructions.

Install the faucet valving according to the faucet manufacturer’s instructions. Do not install the

faucet trim until instructed.

Make sure all butterﬂy valves and supply connections are tightened securely.

Open the hot and cold water supplies, and check the supply connections for leakage.

Run water into the bathing well, and check the drain connections for leakage.

Level

Bathing Well Rim

Not Level

Bathing Well Rim

1054216-2-A 10 Kohler Co.

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