Kohler K-R78035 Assembly instructions

Installation and Care Guide
Electronic Kitchen Faucet
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K-R78035
1281441-2-C

IMPORTANT INSTRUCTIONS
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)*.
WARNING: Risk of electric shock. Grounding is required. 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.
CAUTION: Risk of property damage. The faucet spout
contains a magnet. Do not allow items susceptible to
electromagnetic damage to come into close proximity to the
spout.
Follow all plumbing, electrical, and building codes.
*Outside North America, this device may be known as a Residual
Current Device (RCD).
Tools and Materials
Important Information
WARNING: Risk of fresh water contamination. This faucet
contains back-siphonage protection. Do not remove any
internal components.
Optional:
Unswitched Electrical Outlet
Plywood Support
Bucket 3/8"
1281441-2-C 2 Kohler Co.

Important Information (cont.)
CAUTION: Risk of product damage. This product contains
sensitive electronic components. Do not store open containers of
chemical or cleaning products near this product. Cleaning rags or
sponges must be rinsed with fresh water before storage.
IMPORTANT! Do not use a switch-controlled outlet (typically used
for garbage disposals) to provide power to the faucet.
Observe all local plumbing and building codes.
Provide a constant unswitched 120 VAC electrical outlet located
below the sink within 4’ (1.2 m) of the control box (optional).
Turn off the water supply.
For new installations, assemble the faucet to the sink before
installing the sink.
Kohler Co. 3 1281441-2-C

Before You Begin
CAUTION: Risk of restricted water flow and product damage.
Supply hoses must not be taut, kinked, or twisted during
installation.
IMPORTANT! Risk of restricted waterflow. The outlet hose must
not be taut or kinked when installed.
NOTICE: When locating the valve box bracket make sure that the
spray hose weight will not interfere with the valve box or wire
connections.
NOTE: Allow adequate clearance for servicing.
Before installing the faucet make sure the cabinet area under the
sink can accommodate all of the required components.
Consider loose fitting the connections covered in the following
steps to make sure the bracket location allows enough clearance
for the operational use of the spray hose and weight
If installing the optional power supply, make sure there is an
unswitched 120V outlet within reach.
Outlet Hose
Supply Hose
Battery Wire
Valve Box
Battery Box
Blue Terminals &
Connectors
Spray Hose
Weight
Spray Hose
Unswitched
Outlet
(Optional)
Supply Stop
1281441-2-C 4 Kohler Co.

1. Install the Faucet
NOTE: Handle orientation is designed to be on the right.
For Three-Hole Sinks: Install the gasket, foam side down. Place
the escutcheon and undercover over the sink holes. Insert the
faucet through the escutcheon and the mounting surface with the
handle on the right.
For Single-Hole Sinks: Install the gasket, foam side down. Insert
the faucet through the mounting surface with the handle on the
right.
For thin gauge stainless steel sinks, consider installing a 1/2” (13
mm) plywood support (not supplied).
Slide the washer and ring over the knurled hose, then over the
other hoses and wires, and up to the shank.
Thread the ring onto the shank until the washer contacts the
underside of the sink.
Make sure the faucet is positioned correctly.
Use a Phillips screwdriver to securely tighten the screws.
Escutcheon For
Three-Hole Sinks
Undercover
Washer
Ring
Shank
Plywood
(Optional)
Gasket
Kohler Co. 5 1281441-2-C

2. Connect the Hoses
CAUTION: Risk of restricted water flow and product damage.
Supply hoses must not be taut, kinked, or twisted during
installation. If the supply hoses must be coiled, maintain an inside
diameter of 3″(76 mm).
Connect the Supplies
Connect and tighten the supply hoses to the supply stops.
Place a bucket under the outlet hose.
Turn on the water supplies.
Flush hot and cold water into a bucket for 1 minute to remove
any debris.
Outlet Hose
Ø 3"
(76 mm) Min
Supply
Hose
1281441-2-C 6 Kohler Co.

3. Mount the Bracket
NOTICE: The bracket must be installed vertically.
NOTE: Allow adequate clearance for servicing.
NOTE: If using the optional AC adapter (not supplied) consider the
distance to the nearest electrical outlet when positioning the bracket
within the specified range.
Locate the bracket within 10″(254 mm) from the faucet centerline.
The bottom of the bracket should also be between 8″(203 mm)
and 13″(330 mm) above the cabinet floor.
Secure the bracket with the provided mounting screws. If
installing on drywall, use appropriate anchors (not supplied).
Bracket
10"
(254 mm)
8"
(203 mm)
13"
(330 mm)
Kohler Co. 7 1281441-2-C

4. Install the Batteries
Disconnect the green connector from the valve box.
Slide the battery holder off the valve box.
Press the tabs to remove the cover from the battery holder.
IMPORTANT! Do not use rechargeable or lithium-ion batteries.
Insert six AA batteries into the battery holder.
Reinstall the cover on the battery holder with the flat part of the
green connector facing the front of the holder.
Slide the battery holder back onto the valve box.
IMPORTANT! Do not reconnect the green connector until
instructed to do so.
Valve Box
Battery
Green
Connector
Battery
Holder
Cover
Tab
1281441-2-C 8 Kohler Co.

5. Install the Valve Box
IMPORTANT! Risk of restricted waterflow. The outlet hose must
not be taut or kinked when installed.
NOTICE: Handtighten the outlet hose connector. Do not use a
pliers or a wrench.
Thread the outlet hose onto the valve inlet.
Slide the valve box into the mounted bracket.
Tighten the locking screw to secure the valve box to the bracket.
Connect the spray hose to the valve box outlet. It will click into
place when the connection is secure.
Locking
Screw
Outlet
Hose
Spray Hose
Kohler Co. 9 1281441-2-C

6. Connect the Wires
IMPORTANT! Do not connect the green connector until all other
wires have been attached.
Connect the blue connectors to the blue terminals on the valve
box. The white lines on the connectors should face the front of
the valve box.
Connect the green connector from the valve box to the battery
holder.
NOTE: A LED light will flash on the faucet sensor for fifteen
seconds to indicate a proper installation.
If installing the optional power supply (not supplied), plug the
power cord into an unswitched 120 VAC outlet and connect it to
the valve box. A green LED on the valve box will illuminate
when the power supply is connected.
Blue
Connector
Blue Terminal
Green Connector
1281441-2-C 10 Kohler Co.