Kohler K-400 Manuale utente

Installation Guide

Thermostatic Mixing Valve

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

Los números de productos seguidos de

Mcorresponden a México (Ej.

K-12345M)

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Español, página“ Español-1”

K-400 K-401

116716-2-AC

Tools and Materials

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 contact us. Our phone numbers and website are listed on

the back cover. Thanks again for choosing Kohler Company.

Before You Begin

DANGER: Risk of scalding or other severe injury. Before

completing installation, the installer must set the maximum

water temperature setting of this valve to minimize the risks

associated with scalding hazards according to ASTM F 444.

CAUTION: Risk of scalding. This device has been calibrated at

the factory to ensure a safe maximum water temperature. Any

variance in settings or water inlet conditions from those used

during factory calibration may raise the discharge temperature

above the safe limit, and may present a scalding hazard.

Responsibility for installation and adjustment of this device in

accordance with these instructions lies with the installer.

CAUTION: Risk of product damage. This valve contains plastic

and rubber components. Do not sweat or braze directly to the

valve body. Do not apply excessive heat to the valve body when

you make solder connections. Do not apply ﬂux or acids directly

to the valve, as damage to the seals, plastic components, and

trim ﬁnish may result.

Pipe

Wrench Adjustable

Wrench Strap

Wrench Hacksaw or Tubing Cutter

Propane

Torch

Solder

Hex

Wrench

Thread

Sealant

Plumbers

Putty

Assorted

Screwdrivers Thermometer

116716-2-AC 2 Kohler Co.

Before You Begin (cont.)

CAUTION: Risk of product damage. Do not apply

petroleum-based lubricants to the valve components, as damage

may result.

Shut off the main water supply.

Observe all local plumbing and building codes.

Inspect the waste and supply piping for damage. Replace as

necessary.

The bottom port of the thermostatic mixing valve is intended for

use as a bath ﬁller only. If a bath spout is not used with this

product, cap the bottom port.

The thermostatic mixing valve cartridge does not contain an

integral volume control/shut-off valve. You must install a

separate volume control/shut-off valve (K-406) downstream of

any valve outlet that does not have an integral shut-off valve. The

K-400 and K-402 thermostatic mixing valves require separate

volume control/shut-off valves downstream of each mixing valve

outlet.

The K-401 and K-404 thermostatic mixing valves contain a single

volume control shut-off valve for controlling the water ﬂow

through the shower outlet. When plumbing to the valve’s bath

outlet, you must install a separate volume control shut-off valve

(K-403) downstream from the bath outlet.

The K-400 and K-401 thermostatic mixing valves do not have an

integral aspirator. For installations that use a bath diverter spout,

you must install a twin ell (K-9663) with integral aspirator

between the valve and the bath spout. If these thermostatic

mixing valves are installed without an aspirator it will cause

water to ﬂow from the shower and bath spout at the same time.

Determine the correct drain size and capacity for your

installation. If two thermostatic mixing valves are used together,

water ﬂow volumes between 16 and 24 gpm (61 and 91 lpm) or

more are possible, depending upon the water supply pressure.

Determine the correct water heater size and capacity for your

installation. A typical shower installation uses an approximate

mix of 75% hot water and 25% cold. A custom shower application

using three 2-1/2 gpm (9.5 lpm) showerheads can use about 45

gallons (170 liters) of hot water in 8 minutes. Choose a water

heater large enough for your installation.

Kohler Co. 3 116716-2-AC

Before You Begin (cont.)

The valve is calibrated to 104° F (40° C) at the ﬁrst stop position,

and the maximum temperature limit stop is positioned so the

outlet water temperature does not exceed 120° F (49° C).

Factory calibrated inlet conditions are: Hot and cold water

pressure = 43-1/2 psi (3 kg/cm) Hot water supply temperature

= 149° F (65° C) Cold water supply temperature = 59° F (15° C).

If inlet conditions differ from those used during factory

calibration, it may be necessary to re-calibrate the valve after

installation. The installer must check the mixed ﬂow

temperature after installation, and adjust the valve as needed

according to the instructions.

This valve complies with ASME A112.181M, ASSE 1016, and CSA

B125. The valve is listed with ASSE, CSA, and IAPMO/UPC.

Kohler Co. reserves the right to make revisions in the design of

products without notice, as speciﬁed in the price book.

116716-2-AC 4 Kohler Co.

1. Composite Layout

K. Showerhead

B. C. D.

Showerhead

From Volume-Controlled

Supply

K-400 Thermostatic Mixer and

K-T9494 Trim

B. K-406 Volume Control and

K-T9472 Trim

C. K-9663 Twin Ell (For use with Bath

Diverter Spout)

E. Fixed Showerhead or Handshower

I. Pressure Loop with Bodysprays

F. K-9660 Vacuum Breaker (for use with

Handshower)

H. K-407 3-Way Transfer Valve and K-

T9518 Trim

J. K-401 Thermostatic Mixer with Volume

Control and K-9493 Trim

D. Bath Spout with Diverter

G. Bath Spout

Kohler Co. 5 116716-2-AC

2. Framing and Rough Plumbing Installation

5-7/8" (14.9 cm)

Stop

Roughing-In for K-400-K

5-7/8" (14.9 cm)

4" (10.2 cm)

4-1/4" (10.8 cm)

4-13/16" (12.2 cm)

Stop

4-15/16" (12.5 cm)

Roughing-In for K-401-K

3/4" NPT

Hot Inlet

3/4" NPT Shower

Outlet

3/4" NPT

Bath

Outlet

3/4" NPT

Cold Inlet

1-3/4"

(4.4 cm)

3-1/2"

(8.9 cm)

1-5/8"

(4.1 cm)

Finished

Wall

1-9/16"

(4 cm) to

2-1/4"

(5.7 cm)

4" (10.2 cm)

4-1/4" (10.8 cm)

4-15/16" (12.5 cm)

3/4" NPT

Shower

Outlet

3/4" NPT

Hot Inlet

Volume Control

(One Included)

3/4" NPT

Bath

Outlet

1-5/8"

(4.1 cm)

1-3/4" (4.4 cm)

1-3/4"

(4.4 cm)

2-15/16"

(7.5 cm)

3/4" NPT

Cold Inlet

3-3/16"

(7.8 cm)

6-11/16"

(17 cm)

7/8"

(2.2 cm) 3-15/16"

(10 cm)

1-9/16" (4 cm) To

2-1/4" (5.7 cm)

3-1/2"

(8.9 cm)

11/16"

(1.7 cm)

5/8" (1.6 cm)

2-15/16" (7.5 cm)

Finished Wall

116716-2-AC 6 Kohler Co.

Framing and Rough Plumbing Installation (cont.)

Determine the desired location for the valve according to the

rough-in information, and construct suitable stud and support

framing.

Use 1/2″nominal copper tubing and ﬁttings throughout this

installation. Smaller diameter piping upstream or downstream of

the valve will reduce performance of the valve.

Kohler Co. 7 116716-2-AC

3. Install the Valve

CAUTION: Risk of product damage. This valve contains plastic

and rubber components. Do not sweat or braze directly to the

valve body. Do not apply excessive heat to the valve body when

you make solder connections. Do not apply ﬂux or acids directly

to the valve or you may damage the seals and plastic

components.

CAUTION: Risk of product damage. Do not apply

petroleum-based lubricants to the valve components or damage

may result.

NOTE: A plaster guard is attached to the face of the mixing valve

with two screws. Do not remove it until instructed.

Flush the hot and cold water supply lines to remove any debris.

Install water hammer arrestors in the hot and cold water supply

lines.

K-401

K-400

Cold Water

Supply Line

Cold Water

Supply Line

Hot Water

Supply Line

Hot Water

Supply Line

1-9/16" (4 cm) Min.

2-1/4" (5.7 cm) Max.

11/16"

(1.7 cm)

Finished

Wall

Plaster

Guard

116716-2-AC 8 Kohler Co.

Install the Valve (cont.)

Use thread sealant and connect the 1/2″hot and cold water

supply lines to the valve inlet ports. The inlet ports are marked

″HOT″and ″COLD″so make certain that the corresponding water

supply lines are connected to the correct inlet ports.

For K-401 and K-404 valves, make certain that the integral

volume control/shut-off valve portion of the assembly is on top

when installed.

Connect the water outlet lines to the valve ports. Install a 1/2″

plug in any unused outlet port.

IMPORTANT! Secure the piping to the framing.

Use the plaster guard to determine the depth of the valve in the

wall, and to trace the cut-out line in the wall material. The

ﬁnished wall must be within the MIN.-MAX. depth shown on the

plaster guard.

Provide a 3-1/2″(8.9 cm) to 3-3/4″(9.5 cm) diameter hole in the

rough wall for the plaster guard.

Route the 3/4″mixed water supply line to the transfer valve

location.

Apply thread sealant to the inlet port threads and connect the

water supply to the transfer valve inlet.

Kohler Co. 9 116716-2-AC

4. Complete the Valve Installation

WARNING: Risk of personal injury. Do not turn the

thermostatic mixing valve stem after you adjust the temperature

setting until you install the mixing handle trim. This device has

been calibrated at the factory to ensure a safe, maximum water

temperature. Any variance may raise the discharge temperature

above the safe limit and present a scalding hazard.

For K-400 and K-402 valves: Turn on the water supply lines to

the valves and check for leaks. Run water through the mixing

valve, all showers and the spout. Check the system for leakage.

Turn off the water.

For K-401 and K-404 valves: Remove the plaster guard. Do not

turn the thermostatic mixing valve stem until you have installed

the valve trim. Turn on the water supply lines to the valves and

check for leaks. Run water through the mixing valve, all showers

and the spout. Check the system for leakage. Use the volume

control/shut-off valve (top control) to control the water ﬂow to

the shower outlet. Turn off the water. Reinstall the plaster guard

Complete the ﬁnished wall.

Volume

Control/Shut-off

Valve

Cold Water

Supply Line

Cold Water

Supply Line

Mixing

Valve Stem

Hot Water

Supply Line

Hot Water

Supply Line

116716-2-AC 10 Kohler Co.

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