(4) 5/16" x 2-1/2" Lag Bolts
(4) 5/16" Lag Bolt Anchors
Back Cover
(Through-the-Floor
Installations)
Before You Begin
WARNING: Risk of electric shock. Disconnect power before servicing.
WARNING: Risk of electric shock. For plug-in installations/wall-mounted electrical supply:
Connect only to a properly-grounded, grounding-type receptacle which is protected by a dedicated
120 V, 15 A minimum, 60 Hz Ground-Fault Circuit-Interrupter (GFCI) or Residual Current Device
(RCD). Do not remove the grounding pin or use a grounding adapter.
CAUTION: Risk of personal injury. This toilet weighs approximately 100 lbs (45 kg). Lift the toilet
with two people, employing proper lifting technique.
CAUTION: Risk of hazardous gases. If a new toilet is not installed immediately, temporarily place
a rag in the floor flange opening.
CAUTION: Risk of property damage. This toilet is not intended to be installed in buildings where
temperatures will drop below 32°F (0°C). The design of the toilet makes it difficult to remove all
water from the tank. If frozen, the water could damage the tank resulting in leaking.
IMPORTANT! Use the supply hoses provided with the fixture. Do not reuse the previously installed
hoses.
NOTICE: Follow all local plumbing and electrical codes.
IMPORTANT! This product requires a minimum static pressure of 30 psi (206.8 kPa) for satisfactory rim
wash performance. Maximum static pressure is 80 psi (552 kPa).
IMPORTANT! There are two different remote control options for this model. Setup for the K-7420
premium remote control is included in this manual. If you do not have the premium remote control, refer
to the instructions packed with the K-7421 standard remote control for setup information.
Kohler Co.
Parts Bag Contents
2 Mounting Blocks
Other Parts
3
2 Caps
2 #10 x 1-1/2"
Screws
Supply Hose
2 Bushings
Clip
1212876-2-C