Kraus Kore KWT321-15 User manual

R
INSTALLATION MANUAL
KWT311-15, KWT321-15, KWT301-25,
KWT311-25, KWT311-25-5.5, KWT300-28,
KWT310-28, KWT300-30, KWT302-30,
KWT310-30, KWT300-33, KWT302-33,
KWT310-33/PGM
Kore Workstation Stainless
Steel Dual Mount Kitchen Sinks
www.kraususa.com I Toll Free: 1.800.775.0703 I © 2021 Kraus USA Plumbing LLC I REV. September 22, 2021

Congratulations on the purchase of your new Kraus plumbing fixture!
Please keep the box and packaging materials until your product is completely installed. If you have
any questions, require technical assistance or have any problems with your product:
2
Please contact our Customer Service Team
1-800-775-0703 / [email protected]
Have the model number available and retain a copy of your receipt with purchase date for
reference.
If for any reason this product does not meet your expectations, please be sure to repack this
product in the original box and packaging material to avoid damage during transit.
DO NOT RETURN TO STORE
STOP

3
Tools you will need:
NOTE: Specialized tools may be necessary to install Kraus Stainless Steel Kitchen sinks with
countertop materials other than wood, marble or granite.
For technical assistance or replacement parts, please contact Kraus Customer Service
and one of our representatives will be happy to help:
Toll-Free: 800-775-0703 or [email protected]
The step-by-step guidelines in the installation instructions are a general reference for installing a Kraus sink. Should
there be any discrepancies, Kraus cannot be held liable. It is recommended to install all Kraus products by hiring a
licensed professional.
Prior to Installation:
·Make sure that you have all necessary parts by checking the parts list. If
any part is missing or damaged, please contact Kraus Customer Service at
800-775-0703 for a replacement
·Inspect the sink prior to installation to make sure that it has not been
damaged or during shipping
·Use the cut-out template provided by Kraus
·Observe all plumbing and building codes according to your state
requirements
Safety Goggles Silicone Adhesive Jig Saw Phillips Screwdriver
Putty Knife Tape Measure Pencil Scissors Screwdriver
Drill

44
KWT311-25-5.5
·Cut-Out Template
·Mounting Hardware
·Bottom Grid KBG-UN1-25
·Strainer ST-1
·Drain Cap STC-2
·Cutting Board KCB-WS102BB
·Rolling Mat KRM-11BL
·Soap Dispenser Hole Cap
KWT300-28
·Cut-Out Template
·Mounting Hardware
·Bottom Grid KBG-UN6-28
·Strainer ST-1
·Drain Cap STC-2
·Cutting Board KCB-WS103SA
·Rolling Mat KRM-11BL
·Soap Dispenser Hole Cap
KWT310-28
·Cut-Out Template
·Mounting Hardware
·Bottom Grid KBG-UN1-28
·Strainer ST-1
·Drain Cap STC-2
·Cutting Board KCB-WS103BB
·Rolling Mat KRM-11BL
·Soap Dispenser Hole Cap
KWT300-30
·Cut-Out Template
·Mounting Hardware
·Bottom Grid KBG-UN6-30
·Strainer ST-1
·Drain Cap STC-2
·Cutting Board KCB-WS103SA
·Rolling Mat KRM-11BL
·Soap Dispenser Hole Cap
Parts List
KWT311-15
·Cut-Out Template
·Mounting Hardware
·Strainer ST-1
·Drain Cap STC-2
·Cover Board KCB-WS13BB
KWT321-15
·Cut-Out Template
·Mounting Hardware
·Strainer ST-1
·Drain Cap STC-2
·Cover Board KCB-WS14BB
KWT301-25
·Cut-Out Template
·Mounting Hardware
·Bottom Grid KBG-UN6-25
·Strainer ST-1
·Drain Cap STC-2
·Cutting Board KCB-WS102SA
·Rolling Mat KRM-11BL
·Soap Dispenser Hole Cap
KWT311-25
·Cut-Out Template
·Mounting Hardware
·Bottom Grid KBG-UN1-25
·Strainer ST-1
·Drain Cap STC-2
·Cutting Board KCB-WS102BB
·Rolling Mat KRM-11BL
·Soap Dispenser Hole Cap

55
KWT310-33/PGM
·Cut-Out Template
·Mounting Hardware
·Bottom Grid KBG-UN1-33/PGM
·Strainer ST-1/PGM
·Drain Cap STC-2/PGM
·Cutting Board KCB-WS103AC
·Rolling Mat KRM-11BL
·Soap Dispenser Hole Cap
Parts List
KWT302-30
·Cut-Out Template
·Mounting Hardware
·Bottom Grid KBG-WSU1-30 x 2
·Strainer ST-1 x 2
·Drain Cap STC-2 x 2
·Cutting Board KCB-WS103BB
·Rolling Mat KRM-11BL
·Soap Dispenser Hole Cap
KWT310-30
·Cut-Out Template
·Mounting Hardware
·Bottom Grid KBG-UN1-30
·Strainer ST-1
·Drain Cap STC-2
·Cutting Board KCB-WS103BB
·Rolling Mat KRM-11BL
·Soap Dispenser Hole Cap
KWT300-33
·Cut-Out Template
·Mounting Hardware
·Bottom Grid KBG-UN6-33
·Strainer ST-1
·Drain Cap STC-2
·Cutting Board KCB-WS103BC
·Rolling Mat KRM-11LG
·Soap Dispenser Hole Cap
KWT302-33
·Cut-Out Template
·Mounting Hardware
·Bottom Grid KBG-UND1-33 x 2
·Strainer ST-1 x 2
·Drain Cap STC-2 x 2
·Cutting Board KCB-WS103SA
·Rolling Mat KRM-11BL
·Soap Dispenser Hole Cap

66
Dimensions:
Model #: KWT321-15
Sink Dimensions: 15” x 15” x 9”
Min Cabinet Size: 18”
Model #: KWT311-15
Sink Dimensions: 15” x 22” x 9”
Min Cabinet Size: 18”
Model #: KWT301-25
Sink Dimensions: 25” x 22” x 9”
Min Cabinet Size: 27”
Model #: KWT311-25
Sink Dimensions: 25” x 22” x 9”
Min Cabinet Size: 27”
16" (406.4mm)
17" (431.8mm)
5"
(127mm)
22" (558.8mm)
15" (381mm)
13" (330.2mm)
Ø1 3/8"
(35mm)
2"
(50.8mm)
4"
(101.6mm)
3 1/2"
(90mm)
R 0"
(0mm)
9"
(229mm)
9 3/8"
(239.1mm)
11" (279.4mm)
15" (381mm)
15" (381mm)
13" (330.2mm)
12" (304.8mm)
1 1/2"
(38.1mm)
3"
(76.2mm)
3 1/2"
(90mm)
4 1/2"
(114.3mm)
R 0"
(0mm)
9"
(229mm)
9 1/2"
(240.1mm)
Ø1 3/8"
(35mm)
25" (635mm)
23" (584.2mm)
16" (406.4mm) 17" (431.8mm)
4"
(101.6mm)
22" (558.8mm)
9"
(228.7mm)
5"
(127mm)
Ø1 3/8"
(35mm)
9 1/2"
(240.1mm)
R 0"
(0mm)
3 1/2"
(90mm)
25" (635mm)
23" (584.2mm)
16" (406.4mm)
17" (431.8mm)
5"
(127mm)
5"
(127mm)
3 1/2"
(89mm)
22" (558.8mm)
9"
(228.6mm)
9 1/2"
(240.1mm)
8 3/4"
(222.3mm) 2"
(50.8mm)
4"
(101.6mm)
3 1/2"
(90mm)
1"
(25.4mm)
Ø1 3/8"
(35mm)
R 0"
(0mm)

7
Dimensions:
Model #: KWT300-28
Sink Dimensions: 28” x 22” x 9”
Min Cabinet Size: 30”
Model #: KWT311-25-5.5*
Sink Dimensions: 25” x 22” x 5.5”
Min Cabinet Size: 27”
Model #: KWT310-28
Sink Dimensions: 28” x 22” x 9”
Min Cabinet Size: 30”
Model #: KWT300-30
Sink Dimensions: 30” x 22” x 9”
Min Cabinet Size: 33”
Typical note: *= Special Order
25" (635mm)
23" (584.2mm)
16" (406.4mm)
17" (431.8mm)
5"
(127mm)
5"
(127mm)
3 1/2"
(89mm)
22" (558.8mm)
5 1/2"
(140mm)
2"
(50.8mm)
4"
(101.6mm)
3 1/2"
(90mm)
1"
(25.4mm)
Ø1 3/8"
(35mm)
5 1/4"
(134.4mm)
R 0"
(0mm)
16" (406.4mm)
17" (431.8mm)
5"
(127mm)
22" (558.8mm)
Ø1 3/8"
(35mm)
28" (711.2mm)
26" (660.4mm)
3 1/2"
(89mm)
5"
(127mm)
2"
(50.8mm)
1"
(25.4mm)
4"
(101.6mm)
R 0"
(0mm)
9"
(229mm)
8 3/4"
(222.3mm)
9 1/2"
(240.1mm)
28" (711.2mm)
26" (660.4mm)
16" (406.4mm)
17" (431.8mm)
5"
(127mm)
22" (558.8mm)
R 0"
(0mm)
30" (762mm)
28" (712mm)
16" (406.4mm) 17" (431.8mm)
5"
(127mm)
9"
(228.5mm)
22" (558.8mm)
4"
(101.6mm)
9"
(228.7mm)
9 1/2"
(240.1mm)
3 1/2"
(90mm)
3 1/2"
(90mm)
Ø1 3/8"
(35mm)
Ø1 3/8"
(35mm)
3 1/2"
(90mm)
9 1/2"
(240.1mm)
R 0"
(0mm)

Dimensions:
Model #: KWT310-30
Sink Dimensions: 30” x 22” x 9”
Min Cabinet Size: 33”
Model #: KWT302-30
Sink Dimensions: 30” x 22” x 9”
Min Cabinet Size: 33”
Model #: KWT300-33
Sink Dimensions: 33” x 22” x 9”
Min Cabinet Size: 36”
Model #: KWT302-33
Sink Dimensions: 33” x 22” x 10”
Min Cabinet Size: 36”
3 1/2"
(90mm)
Ø1 3/8"
(35mm)
30" (762mm)
28" (711.2mm)
16" (406.4mm)
9"
(228.6mm)
17" (431.8mm)
5"
(127mm)
5"
(127mm)
8 1/2"
(215.9mm)
3 1/2"
(89mm)
2"
(50.8mm)
1"
(25.4mm)
4"
(101.6mm)
22" (558.8mm)
9 1/2"
(240.1mm)
R 0"
(0mm)
3 1/2"
(90mm)
Ø1 3/8"
(35mm)
30" (762mm)
28" (711.2mm)
16" (406.4mm)
17" (431.8mm)
5"
(127mm)
3 1/2"
(89mm)
2"
(50.8mm)
1"
(25.4mm)
4"
(101.6mm)
22" (558.8mm)
13 7/8"
(353.6mm)
13 7/8"
(353.6mm)
1/8"
(4mm)
R 0"
(0mm)
9"
(228.6mm)
9 1/2"
(240.1mm)
3"
(76.2mm)
9"
(228.5mm)
4"
(101.6mm)
16" (406.4mm)
17" (431.8mm)
22" (558.8mm)
5"
(127mm)
33" (838.2mm)
31" (787.4mm)
5"
(127mm)
17" (431.8mm)
22" (558.8mm)
4"
(101.6mm)
33" (838.2mm)
31" (787.4mm)
10"
(254.1mm)
15.4" (391.7mm) 15.4" (391.7mm)
Ø1 3/8"
(35mm)
R 0"
(0mm)
9 1/2"
(240.1mm)
3 1/2"
(90mm)
10 1/2"
(266.7mm)
3 1/2"
(90mm)
16" (406.4mm)
Ø1 3/8"
(35mm)
R 0"
(0mm)
6 1/8"
(155mm)

9
Dimensions:
Model #: KWT310-33/PGM
Sink Dimensions: 33” x 22” x 9”
Min Cabinet Size: 36”
9"
(229mm)
8 1/2"
(215.9mm)
4"
(102mm)
Ø1 3/8"
(35mm)
5"
(127mm)
16" (406mm)
17" (432mm)
22" (559mm)
3 1/2"
(90mm)
5"
(127mm)
33" (838mm)
31" (787mm)
2"
(50.8mm)
3 1/2"
(89mm)
1"
(25.4mm)
9 1/2"
(240.1mm)
R 0"
(0mm)

10
Step 1. Position Template
·Check the cut-out template against the actual sink to ensure a proper
sized cut-out.
·Place the cut-out template in the desired location on the countertop.
NOTE: Make sure clearance is suitable for backsplash, faucet and plumbing for the sink.
Step 2. Trace Template
·Trace template on countertop with a pencil.
Paper Template
Paper Template
Top Mount Installation

11
Step 3. Cut Countertop
·Cut the opening in the countertop by carefully following the traced line.
NOTE: Please use the appropriate saw that best fits your countertop material.

Step 4. Attach Mounting Hardware
·Attach mounting hardware to the prongs protruding from the underside of the sink rim.
·Make sure the hooked side of the mounting clip is facing away from the sink.
12
NOTE: Maximum countertop thickness for Top Mount installation is 1 1/2".
Push

13
Step 5. Apply Silicone or Plumber's Putty
·Clean and dry the surface around the opening of the sink.
·Turn the unit upside down to apply sealant. Apply silicone-based sealant (not included) underneath the edge of the
sink.

14
Step 6. Secure Sink to Countertop
·Insert the sink into the opening, check the alignment of the sink to the cutout in the countertop and press firmly.
·Tighten the screws in the front of the sink, followed by the ones in the back and on the sides of the sink.
·Remove excess silicone-based sealant.
·Allow sealant to set for 30-60 minutes.
Sealant or putty
Sink
Countertop
Fasten the screw

Step 7. Install Plumbing Fixtures
·Connect drain to sink. Connect trap to drain. Connect water supply connections to faucet according to manufacturer's
instructions.
·Run water into sink and check for leaks.
·Note: Before installation, please check that the drain kit complies with ASME A112.18.2/CSA B125.2 and with CUPC
certification.
Maintenance
Clean your sink on a regular basis with warm soapy water. Rinse the sink after using cleaning products. Wipe the sink surface
with a soft cloth to remove any liquid residue. Do not cut food directly on the surface of the sink. Do not leave sharp objects
on the surface of the sink for an extended period of time. Do not use abrasive cleaning products, sanding tools, steel wool or
bleaching products.
15

KRAUS Recommended Installation Type
3/8" Positive Reveal
Flush/Zero Reveal
FLUSH/ZERO REVEAL
3/8" POSITIVE
CENTERLINE
16
Step 1. Determine reveal type
·Use scissors to cut along the line of the paper template for your desired reveal type (Negative, Positive, or Flush Reveal)
Undermount Installation

·Check the cut-out template against the actual sink to ensure a proper
sized cut-out.
·Place the cut-out template in the desired location on the countertop.
Step 2. Position template
Paper Template
Step 3. Trace Template
·Trace template on countertop with a pencil.
Paper Template
NOTE: Make sure clearance is suitable for backsplash, faucet and plumbing for the sink.
17

·Cut the opening in the countertop by carefully following the traced
line.
Step 4. Cut Countertop
·Turn countertop over and align sink with countertop. Decide location
for mounting brackets.
·Mounting holes should be 1/2" from edge of sink.
Step 5. Set up mounting brackets
NOTE: Please use the appropriate saw that best fits your countertop
material.
1/2"
(13mm)
18

Step 6. Drill hole in countertop
·Insert anchors into drilled holes and lightly tap with a hammer until flush.
Step 7. Install anchors
·Drill 3/8" diameter x 1/2" deep hole in the countertop.
3/8 1/2
19

·Use a bead of silicone (or preferred adhesive) around the rim of the
sink. Check the alignment of the sink to the cutout in the countertop.
Place sink over cutout hole and press firmly.
Step 8. Secure sink to countertop
Step 9. Attach mounting hardware
·Attach mounting hardware to secure bowl. Remove excess sealant
from inside lip.
·Allow sealant to set for 30 - 60 minutes.
NOTE: Use acetone or rubbing alcohol to remove any excess sealant.