Kohler DTV+ Montageanleitung
Installation and Care Guide
Digital Thermostatic Valve for DTV+
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1240338-2-B
IMPORTANT INSTRUCTIONS
WARNING: When using electrical products, basic precautions should always be followed,
including the following:
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.
DANGER: Risk of injury or property damage. If the power cord gets damaged, it must be
replaced by the manufacturer, its authorized service agent, or qualified personnel to avoid danger.
WARNING: Risk of injury. This device is not intended for use by persons (including children)
with different or reduced physical, sensory, or mental abilities, or who lack experience or
knowledge, unless they are under the supervision of or receive training for the use of the device by
a person responsible for their safety. Children should be under supervision to ensure that they do
not use devices as toys.
WARNING: Risk of injury or property damage. Please read all instructions thoroughly before
beginning installation.
NOTICE: Follow all plumbing, electrical, and building codes.
NOTICE: Some electrical codes require a circuit protected by a GFCI*.
NOTICE: For K-557-K1: If a GFCI outlet is required, connect only one valve per outlet.
NOTICE: Provide unrestricted service access to the valve.
NOTICE: The minimum flow rate of this valve is 1.6 gal/min (6 l/min).
*Outside North America, this device may be known as a Residual Current Device (RCD).
___________________________________________________________________________________________________
Operation with DTV+
To connect the valve to the DTV+ system, the K-99695 system controller is required.
The provided data cable is used to connect the valve to the system controller.
Refer to the ″DTV+ System Layout″section in this guide.
Before Operating the System for the First Time:
Download and install the latest software for connected components. This may take an hour or more to
complete based on system configuration and internet connection speed. Do not disconnect the power from
any components during software download and installation.
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.)
1240338-2-B 2 Kohler Co.
Specifications (cont.)
Pressures
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% noncondensing
Electrical
Electrical Rating 120 V, 0.16 A, 60 Hz
Data Cable Length 25’ (7.6 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.
Tools and Materials
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 are 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 that 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, nonsetting compounds, such as plumbers putty, on the threaded
connections.
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 1240338-2-B
Before You Begin (cont.)
NOTICE: Do not remove the check valves from the inlets as this can damage the product.
NOTICE: If the 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 shower configuration options, refer to the guide on the K-99695 controller product
page at us.kohler.com.
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.
A qualified electrician should install a 120 V electrical outlet, within the stud framing, close to the
valve. A GFCI outlet may be required in certain applications.
If possible, install the electrical outlet before installing the valve.
Multiple Valve Applications
Showering configurations using large water volumes require supply piping and drain systems that
will sufficiently accommodate the actual total flow rate at any one time.
Hot water generation: Use a water heating system capable of handling large flow rates. Tankless
(on-demand) water heaters and recirculating pumps may not be adequate for your showering
configuration.
1240338-2-B 4 Kohler Co.
1. DTV+ System Layout
The K-99695 system controller powers the interface(s) and controls the digital valve(s) and other system
components. The controller is required to configure the valve(s).
NOTICE: If the valve will be used for a bath/shower application, the bath fill supply line must be routed
from the #1 outlet port.
NOTICE: Custom shower configurations may not allow certain features to be enabled. For shower
configuration options, refer to the guide on the K-99695 controller product page at us.kohler.com.
Determine the locations of all required components, including shower fittings.
A data cable is provided to connect the valve to the controller. If the valve is not within 25’ (7.6 m)
of the controller, obtain a longer telephone-style cable or add an extension cable.
When routing piping, make sure that each shower fitting will connect to the appropriate valve
outlet for your configuration.
Before Operating the System for the First Time:
Download and install the latest software for connected components. This may take an hour or more to
complete based on system configuration and internet connection speed. Do not disconnect the power from
any components during software download and installation.
Digital
Valve
Router
AC Power
Controller
AC Power
25' (7.6 m)
Data Cable
Component Cable
Connections
Interface
(Up to Three)
Digital
Valve
Water InletsShower Fittings
Kohler Co. 5 1240338-2-B
2. Mounting Configurations
NOTICE: Do not mount the valve with the inlets pointing up or positioned above the outlet ports. Doing
so will damage this product.
The two-port valve is shown above. The same vertical or horizontal mounting configurations apply
for the three-port valve.
Mounting on a Horizontal SurfaceMounting on a Vertical Surface
Inlets
Cable
Sockets
Inlets
1240338-2-B 6 Kohler Co.
3. Prepare the Site
NOTICE: Do not install the valve under a whirlpool surround or any location where the temperature may
exceed 104°F (40°C).
NOTE: Horizontal installation within a stud cavity is shown. The valve can also be mounted vertically or
mounted to a horizontal surface. Refer to the ″Mounting Configurations″section.
K-528-K1: This product is designed to fit within a minimum 14-1/2″(368 mm) 2x4 stud cavity.
K-557-K1: This product will not fit within a standard stud cavity. Construct a minimum 18″(457
mm) wide 2x4 stud cavity.
Install adequate bracing for mounting the valve. Notch the bracing as needed to accommodate the
inlets and outlets.
Install a 120 V electrical outlet within the stud framing, close to the valve. Locate the outlet above
the valve. A GFCI outlet may be required in some applications.
Cross Brace MountBoard Mount
Notch bottom brace.
2-3/4"
(70 mm)
Min
9-1/2"
(241 mm) 12-1/2"
(318 mm)
11-5/8"
(295 mm)
Drip Loop
Place the outlet
higher than
the valve.
K-528-K1:
14-1/2" (368 mm) Min
K-557-K1:
18" (457 mm) Min
K-528-K1: 14-1/2"
(368 mm) Min
K-557-K1:
18" (457 mm) Min
Kohler Co. 7 1240338-2-B
4. 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 that will melt if heat is directly applied.
Disassemble the adapter. Ensure that 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.
1240338-2-B 8 Kohler Co.
5. 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 that 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 the 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 before the valve.
Hold the valve up to the installation location. Verify fit and mark the hole locations.
Predrill the holes.
Secure the valve with the washers and screws. Do not overtighten.
IMPORTANT! Make sure that each shower fitting is connected to the appropriate valve outlet for your
shower configuration. For shower configuration options, refer to the guide on the K-99695 controller
product page at us.kohler.com.
Route the piping from the valve outlets to the appropriate shower fitting.
Connect the hot and cold supply lines to the appropriate valve inlets. Hot is red and marked with
″HOT,″cold is blue and marked with ″COLD.″
Secure all piping to the framing.
Shut-Off Valve
1/2" Union
Water-Hammer Arrestor
Offset Foot
Cross Brace Mount
Board Mount
Kohler Co. 9 1240338-2-B
6. Installation Checkout
Test for Leaks
Turn on the water supply to the valve.
Connect the jumper to the valve.
Verify that there is power to the 120 V electrical outlet, then plug the power cord into the outlet.
Wait 10 seconds for the valve to initialize; the outlets will activate.
Check all connections for leaks.
Disconnect the power, then remove the jumper.
Connect the Cables
NOTE: Make drip loops in all cables and cords.
Install the K-99695 system controller according to the instructions packed with the product.
Route the data cable in the wall between the controller and valve installation location.
Attach a split boot to the data cable, toward the end that will connect to the valve.
Connect the cable to the valve. Press the boot over the connection in the valve socket.
Insert a solid boot into the unused socket.
Configure the Valve (Requires an Installed Controller)
NOTE: Valves that have been recently installed, or have not been used for some time should be exercised
before running tests or setting the maximum temperature.
To configure valve setup, refer to the guide on the K-99695 controller product page at us.kohler.com.
Before Operating the System for the First Time:
Download and install the latest software for connected components. This may take an hour or more to
complete based on system configuration and internet connection speed. Do not disconnect the power from
any components during software download and installation.
Slide the split boot
onto the cable.
Split
Boot
Solid Boot
Jumper
Drip Loop
1240338-2-B 10 Kohler Co.
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