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  1. KOHLER
  2. Other Products
  3. Troubleshooting

Digital Thermostatic Valve (DTV) Systems

Six-Port Valve

Model Number Location

  • The model number and version of the valve is found on a label on the outside of the valve cover.

Air Testing

  • The digital six-port valve can be air tested up to 100 psi (689 kPa).
  • Before testing, install the jumper wire to open the solenoid ports.
  • The air test begins at the hot and cold inlets of the valve.

Laminar Bath Spout Compatibility

  • The K-923 Laminar bath spout is compatible with the six-port digital valve.
  • Refer to the spout specification sheet for more information.

DTV I User Interface

Part Number Location

  • The part number and revision level for the DTV 1 user interface is found on a label on the back of the interface.
  • To access the back of the interface, use a suction cup (part #69944) to pull the interface out of the wall sleeve.

Version Codes

  • The three versions of the DTV I user interfaces are 1.0, 2.0, and 3.0.
  • For the system using both a primary and auxiliary interface, they must be the same version.
  • To find the version code, turn the dial on the interface and navigate to Settings > Valve > Version.

DTV II Media Module

  • The DTV II system is controlled by the K-638 media module.
  • System components such as the six-port valve, lighting, and other options are connected to specific ports on the media module using cables.

Combustibility

  • In the context of building code, the plastic casings of the K-682 digital valve and K-638 media module are combustible.
  • These products must be installed in accessible locations for servicing.
  • The system components are rated for flammability and meet UL requirements, however they are not plenum rated.

Connecting the Module to a Switch

  • The media module can be connected to a switch.
  • If the switch is plugged into a router via a LAN port, and the switch is managed, then the router can assign an IP address to a device connected to the switch.

Lighting Compatibility

  • The DTV II system provides a high voltage dimmable lighting output for direct connection to incandescent lighting.
  • The maximum wattage the media module can support is 250 Watts, including incandescent lighting.
  • A ThermaSol MR16 lighting fixture cannot be used with the DTV II system because the fixture is driven by a transformer.

Connecting a Music Player

  • A music player can be connected directly to a DTV II system by attaching an RCA audio cable to the "audio line in" port on the media module.
  • To connect an iPod or MP3 player, you may need a 1/8" stereo to dual phono (RCA) plug Y-cable and a phono coupler.

Click Here For Maintenance And Service Parts

1069764-10-A  ©Kohler Co.

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