Kohler K-528 Manuale utente

Installation Guide

Two-Port Thermostatic Valve

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-528

1145587-2-B

IMPORTANT INSTRUCTIONS

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

including the following:

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

Circuit-Interrupter (GFCI)*. Grounding is required. The unit should be installed and grounded by a

qualiﬁed service representative.

WARNING: Risk of electric shock. A qualiﬁed electrician should route all electrical wiring.

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

WARNING: Unauthorized modiﬁcation may cause poor performance of the valve. Do not make

modiﬁcations to the valve as this could adversely affect the performance of the valve and void the

warranty. Kohler Co. shall not be liable under its warranty or otherwise for personal injury or

damage caused by any such unauthorized modiﬁcation.

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

beginning installation.

NOTICE: Follow all plumbing, electrical, and building codes.

NOTICE: Provide generous, unrestricted service access to the valve. Provide access for servicing the

valve and interface. This access must be located immediately next to the valve. Refer to the roughing-in

information.

*Outside North America, this device may be known as a Residual Current Device (RCD).

Speciﬁcations

Pressures

Maximum Static Pressure 125 psi, 862 kPa, 8.6 bar

Supply Pressure Differential* Max 5 psi, 34.5 kPa, 0.34 bar (Equal pressures recommended.)

Minimum Flow Rate 1.6 gal/min (Less than 72 psi dynamic pressure.)

6 l/min (Less than 500 kPa maintaining pressure.)

2.1 gal/min (Greater than 72 psi dynamic pressure.)

8 l/min (Greater than 500 kPa maintaining pressure.)

Temperatures

Programmable Temperature Max 120°F (49°C) Min 86°F (30°C) Full cold may also be selected.

Default Temperature at Start-up 100°F (38°C)

Minimum Mixed Temperature

Differential from Hot Supply 3.6°F (2°C)

Temperature Stability at Recommended

Supply Conditions +/- 1.6°F (1°C)

Ambient Temperature Greater than 34°F (1°C), Max 104°F (40°C)

Maximum Relative Humidity 95% non-condensing

Electrical

Electrical Service 120 V, 15 A, 60 Hz

User Interface Cable Length (supplied) 20 ft (6.1 m)

*In commercial applications where there is a large difference in hot and cold supply pressures or frequent

ﬂuctuation in either supply line is anticipated, it is strongly recommended that pressure regulators be

installed.

1145587-2-B 2 Kohler Co.

Tools and Materials

Plus:

• (2) 1/2" Union Connectors

• Wood and Framing Materials

• PEX Tubing, Copper Tubing, or PVC

• (2) Water Hammer Arrestors (Recommended)

• (2) Supply Shut-Off Valves

Solder Propane

Torch

Hacksaw or Tube Cutter Sealant

Tape

Kohler Co. 3 1145587-2-B

Roughing-In

Before You Begin

NOTICE: Do not install the valve under a whirlpool surround or any location where the temperature may

exceed 104°F (40°C). The valve and its integrated power supply is rated to operate in temperatures up to

104°F (40°C).

NOTICE: Do not apply excessive heat near the valve or apply ﬂux or acids directly onto the valve. This

valve contains plastic and rubber components which will melt if heat is directly applied.

NOTICE: Do not apply petroleum-based lubricants to the valve components. Doing so will damage the

valve components.

NOTICE: Do not use oil-based, non-setting compounds, such as plumbers putty, on the threaded

connections.

NOTICE: If the digital valve will be used for a bath/shower application, the bath ﬁll supply line must be

routed from the #1 outlet port.

Read these instructions and determine the locations of all required components before beginning

installation.

For optimum performance, 1/2″dedicated water supply lines are recommended.

When possible, install the valve prior to installing the interface(s).

If possible, ﬂush all piping thoroughly before installing the valve. If the pipes are ﬂushed after the

valve is installed, clean the inlet screens before using the system.

This valve is not intended for single-outlet use.

1-9/16"

(40 mm)

1-7/16"

(37 mm) 2-3/8"

(60 mm)

(51 mm) 1-13/16"

(46 mm)

13/16"

(21 mm)

1-5/16"

(33 mm)

3-3/8"

(86 mm)

(25 mm)

13-3/8" (340 mm)

11-5/8" (295 mm)

10-3/16" (259 mm)

8-1/16" (205 mm)

12-1/2" (318 mm)

9-7/16" (240 mm)

9-1/2"

(241 mm)

12-1/2"

(318 mm)

2-11/16"

(68 mm)

1145587-2-B 4 Kohler Co.

Before You Begin (cont.)

A qualiﬁed electrician should install a 120 V GFCI electrical outlet, within the stud framing, in close

proximity to the valve.

If possible, install the electrical outlet prior to installing the valve.

This valve complies with UL1951, ASME A112.18.1, ASSE 1016, CSA B125, and CSA C222 No.

218.2-93. This valve is listed with ASSE, IAPMO/cUPC, and UL.

Kohler Co. 5 1145587-2-B

1. Mounting Conﬁgurations

NOTICE: Do not mount the valve with the inlets located at the top. Doing so will damage this product.

Vertical and horizontal mounting options are shown above. Do not mount the valve with the inlets

or cable sockets pointing up.

Mounting on a Horizontal SurfaceMounting on a Vertical Surface

Inlets

Cable

Sockets

1145587-2-B 6 Kohler Co.

2. Plan the Component Locations

NOTICE: If the digital valve will be used for a bath/shower application, the bath ﬁll supply line must be

routed from the #1 outlet port.

NOTE: Only one interface is required, located inside the showering enclosure. A second interface can be

installed outside the showering enclosure. The interfaces are identical and either can be used for the

primary and secondary connection.

Determine the locations of all required components before beginning installation.

When routing piping, the numbers marked at each valve outlet must correspond to the appropriate

showering component for pre-programmed or custom showering experiences to function properly.

Coupler

Drip Loop

Drip

Loop

Power

Cord

Outlet

Interface

20' (6.1 m) Cables

NOTE: Only one interface, installed

inside the shower, is required.

Outlets

Supply Inlets

Kohler Co. 7 1145587-2-B

3. Prepare the Site

NOTE: Horizontal wall installation is shown. The valve can also be wall-mounted vertically or mounted

to a horizontal surface. Refer to the ″Mounting Conﬁgurations″section.

This product is designed to ﬁt within a minimum 14-1/2″(368 mm) 2x4 stud cavity.

Install adequate bracing for mounting the valve. Notch the bracing as needed to accommodate the

inlets and outlets.

4. Install the Electrical Outlet

NOTICE: Do not install the valve under a whirlpool surround or any location where the temperature may

exceed 104°F (40°C). The valve and its integrated power supply is rated to operate in temperatures up to

104°F (40°C).

Install a 120 V GFCI electrical outlet within the stud framing, in close proximity to the valve. Locate

the outlet above the valve.

Cross Brace MountBoard Mount

Notch bottom brace.

14-1/2"

(368 mm) Min

2-3/4"

(70 mm)

Min

9-1/2"

(241 mm) 12-1/2"

(318 mm)

14-1/2"

(368 mm) Min

11-5/8"

(295 mm)

Drip Loop

Place the outlet

higher than

the valve.

1145587-2-B 8 Kohler Co.

5. Assemble the Adapters and Unions

NOTICE: Do not apply excessive heat near the valve or apply ﬂux or acids directly onto the valve. This

valve contains plastic and rubber components which will melt if heat is directly applied.

Disassemble the adapter. Ensure all rubber and plastic components are removed.

Slide the union nut onto the inlet/outlet tube.

Solder the inlet/outlet tube to the union. Allow to cool completely.

Assemble the union.

Slide the adapter nut onto the inlet/outlet tube.

Assemble the adapter lock onto the inlet/outet tube and slide the assembly into the adapter nut.

Slide the O-ring onto the inlet/outlet tube.

For inlet tubes only: Insert the screen into the end of the inlet tube.

Reinstall the adapter assembly to the valve.

Repeat for all inlet/outlet tubes as required.

1/2" Union

Inlet/Outlet Tube

Adapter Nut

Screen (Inlets Only)

O-Ring

Adapter Lock

Solder this connection.

Kohler Co. 9 1145587-2-B

6. Install the Valve

NOTICE: Do not apply excessive heat near the valve or apply ﬂux or acids directly onto the valve. This

valve contains plastic and rubber components which will melt if heat is directly applied.

IMPORTANT! If your water supply has high amounts of particulates, install wye strainers in the supply

lines.

Route 1/2″dedicated water supply lines. Use unions to install removable pipe segments to the

valve inlets to allow access for periodic cleaning of the inlet screens.

Install shut-off valves and water hammer arrestors in the supply lines prior to the valve.

Hold the valve up to the installation location. Verify ﬁt and mark the hole locations.

Pre-drill the holes.

Secure the valve with the washers and screws. Do not overtighten.

IMPORTANT! Make sure the shower components are connected to the corresponding numbered outlet(s)

on the valve.

Route the piping from the valve outlets to the appropriate shower components.

Connect the hot and cold supply lines to the appropriate valve inlets. Hot is red and marked with

an ″H,″cold is blue and marked with a ″C.″

Secure all piping to the framing.

Shut-Off Valve

1/2" Union

Water Hammer Arrestor

Offset Foot

Cross Brace Mount

Board Mount

1145587-2-B 10 Kohler Co.

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