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Floor Drain

Application and Function
Schluter®-KERDI-DRAIN is a floor drain specifically designed to allow connections to Schluter®-KERDI or other load-bearing, bonded waterproof membranes, typically in shower applications. Bonded waterproof membranes represent the current state of technology and are increasingly used for ceramic tile and natural stone coverings. Schluter®-KERDI is adhered to the drain's large, trapezoid-perforated bonding flange, which is covered with a fleece webbing, to form a waterproof connection at the top of the drain assembly. KERDI-DRAIN features a fully adjustable square grate to accommodate 1/4" (6 mm) to 1-1/4" (32 mm) tile thicknesses. The grate assembly allows lateral and tilt adjustment as well. KERDI-DRAIN is designed to simply integrate with standard 2" (51 mm) drain pipes, making it suitable for new construction and renovation.

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Materia Properties and Areas of Applicationl
The drain casing, height adjustment collar, lateral adjustment ring, and strainer are made of acrylic nitrite butadiene styrol (ABS). The drain casing is also available in PVC and features a fleece-covered bonding flange. The grate is available in stainless steel 304 (1.4301 = V2A) and anodized aluminum with a brushed copper bronze, brushed brass, or brushed nickel finish.
The Schluter®-KERDI-DRAIN grate, in anodized aluminum, must be tested to verify its suitability if chemical exposure is expected. Cementitious materials, in conjunction with moisture, become alkaline. Since aluminum is sensitive to alkaline substances, exposure to the alkali (depending on the concentration and duration of exposure) may result in corrosion (aluminum hydroxide formation). Therefore, it is important to remove mortar or grout residue from visible surfaces. In addition, ensure that the grate is solidly embedded in the setting material and that all cavities are filled to prevent the collection of alkaline water. The anodized layer retains a uniform appearance during normal use.
The surface, however, is susceptible to scratching and wear and may be damaged by grout or setting material. Therefore, these materials must be removed immediately. The Schluter®-KERDI-DRAIN grate, in stainless steel, is roll-formed using 304 (1.4301 = V2A) stainless steel. Therefore, the grate’s appearance differs from those made of anodized aluminum. The stainless steel material can sustain high mechanical stresses and is especially well suited for applications requiring resistance against chemicals and acids. Note: KERDI-DRAIN is listed by UPC® (IGC 195-2004), CSA (B79-94), and NSF (SE AD 130-007). For copies of the above listings, please contact Schluter®-Systems at 1800-472-4588 (USA) or 1-800-667-8746 (CAN), or e-mail us at info@schluter.com.Links to the above listings can also be accessed at www.schluter.com.

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Installation
1a
.If there is access to the plumbing from below, and the waste line will be connected subsequent to installing KERDI-DRAIN, Schluter®-KERDI-DRAIN can be firmly embedded in a ring of loose mortar and leveled before placing the screed.
1b. When job conditions require the setting of the KERDI-DRAIN by the plumber prior to the installation of the mortar bed (or when there is no access to the plumbing from below), connect the drain to the waste line at the desired height. Pack loose mortar under the bonding flange and drain casing, so that the unit is fully supported, before placing the screed. When installing KERDI-DRAIN over wood substrates, the minimum thickness of mortar required at the perimeter of the bonding flange is 1".

Note: Schluter®-Systems recommends installing the KERDI-DRAIN according to step 1a above whenever possible. This method affords the installer greater control over the final position of the drain and makes it easier to obtain full support under the bonding flange.

2. The screed is then placed flush with the top of the trapezoid-perforated bonding flange of the Schluter®-KERDI-DRAIN. The drain casing and bonding flange must be fully supported.
3. As soon as the mortar can be walked upon, apply a bond coat of unmodified thin-set mortar to the screed and bonding flange using a 1/4"; x 3/16" V-notched trowel.
4. Embed the Schluter®-KERDI in the thin-set mortar and work the matting onto the entire surface to ensure proper adhesion and remove air pockets. Schluter®-KERDI is carried to the step in the fleece-laminated bonding flange (template provided). Be sure the connection between Schluter®-KERDI and the KERDI-DRAIN is secure and watertight.
5. Once the entire membrane, including seams, corners, curbs, and connection to drain, have been completely bonded and, therefore, waterproofed, coatings or tiles can be applied as surface coverings. For shower applications, the waterproofing must be applied up to the height of the showerhead.
6. The grate assembly, which is comprised of a square grate, the height adjustment ring, and the lateral adjustment ring, is set with thin-set mortar. The height of the grate is adjusted via the height adjustment collar and aligned flush with the top of the covering. Since the diameter of the height adjustment collar is smaller than the opening of the bonding flange, the grate can be positioned to match the joint pattern of the tile covering.

Installation over Schluter®-KERDI-SHOWER-ST
1a
. If there is access to the plumbing from below and the waste line can be connected after installing the KERDI-DRAIN, completely fill the step in the shower tray with unmodified thin-set mortar. Schluter®-KERDI-DRAIN is pressed firmly into the thin-set mortar, ensuring full support of the bonding flange.
1b. When job conditions require the setting of the KERDI-DRAIN by the plumber prior to the installation of the KERDI-SHOWER-ST tray (or when there is no access to the plumbing from below), dry-fit the KERDI-DRAIN to the appropriate height using the detachable center section of the tray or the foam spacers included with the drain. Before installing the KERDI-SHOWER-ST tray, apply sufficient thin-set mortar to the substrate and to the top and bottom of the detached center section. Slide the center section into place below the drain to ensure solid and uniform support of the bonding flange.

Note: Schluter®-Systems recommends installing the KERDI-SHOWER-ST tray prior to setting KERDI-DRAIN whenever possible. This method affords the installer greater control over the final position of the drain and makes it easier to obtain full support under the bonding flange.
2. Apply unmodified thin-set mortar over the entire shower tray surface and fleeced bonding flange using a 1/4" x 3/16" V-notched trowel.
3. Embed the Schluter®-KERDI in the thin-set mortar and work the matting onto the entire surface to ensure proper adhesion and remove air pockets. Schluter®-KERDI is carried to the step in the fleece-laminated bonding flange (template provided). Be sure the connection between Schluter®-KERDI and the KERDI-DRAIN is secure and watertight.
4. Once the entire membrane, including seams, corners, curbs, and connection to drain, have been completely bonded and, therefore, waterproofed, coatings or tiles can be applied as surface coverings. For shower applications, the waterproofing must be applied up to the height of the showerhead.
5. The grate assembly, which is comprised of a square grate, the height adjustment ring, and the lateral adjustment ring, is set with thin-set mortar. The height of the grate is adjusted via the height adjustment collar and aligned flush with the top of the covering. Since the diameter of the height adjustment collar is smaller than the opening of the bonding flange, the grate can be positioned to match the joint pattern of the tile covering.

Notes:
Prior to setting tile, if the assembly is to be water tested, wait 24 hours to allow for final set of the mortar before testing to ensure waterproof performance of the assembly at seams and connections.

If Schluter®-DITRA is used as the waterproofing layer, the DITRA must be held back to the outer edge of the bonding flange. Adhere a 20" x 20" (50 cm x 50 cm) cut section of Schluter®-KERDI to the top of the DITRA membrane and bonding flange using unmodified thin-set mortar. The Schluter®-KERDI must overlap the DITRA membrane a minimum of 2" (50 mm). With the flat side of the trowel, firmly press Schluter®-KERDI into the thin-set mortar to ensure 100% coverage and a watertight seal.
Relevant industry standard guidelines for floor drains with integrated bonding flange include method B422 in the Tile Council of North America's (TCA) Handbook for Ceramic Tile Installation and Method 326DR in the Terrazzo, Tile and Marble Association of Canada (TTMAC) Specification Guide 09300 Tile Installation Manual. Schluter®-KERDIand Schluter®-DITRA both meet the American National Standard for Load Bearing, Bonded, Waterproof Membranes for Thin-Set Ceramic Tile and Dimensional Stone Installations (ANSI A118.10) and are listed by cUPC®. For copies of these listings, please contact Schluter®Systems at 1-800-472-4588 (USA) or 1800-667-8746 (CAN), or e-mail us at info@schluter.com.

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Maintenance
Schluter®-KERDI-DRAIN requires no special maintenance and is resistant to mold and fungi. Clean the grate using common household cleaning agents. The grate may be removed to clean the drain housing and the drainpipes.
Stainless steel grates exposed to the environment or aggressive substances should be cleaned periodically using a mild household cleaner. Regular cleaning maintains the neat appearance of stainless steel and reduces the risk of corrosion. All cleaning agents must be free of hydrochloric and hydrofluoric acid. Stainless steel surfaces develop a sheen when treated with a chrome polishing agent.
In the case of the anodized aluminum grates, do not use abrasive cleaning agents. Damage to the anodized layer can be repaired by applying varnish.

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Components

1) Grate(stainless steel, Brushed brass anod. alu., Brushed copper/bronze anod. anu., Brushed nickel anod. alu.)

2) Height adjustment collar

3) Lateral adjustment ring

4) Drain casing with fleeced bonding flange

Schluter®-KERDI-DRAIN with Stainless steel grate) (E 304)

Item Number

Materials

KD2/ABS/E ABS
KD2/PVC/E PVC
Schluter®-KERDI-DRAIN
with Brushed brass anodized aluminum grate (AMGB)
KD2/ABS/AMGB ABS
KD2/PVC/AMGB PVC
Schluter®-KERDI-DRAIN
With Brushed copper/bronze anodized aluminum grate (AKGB)
KD2/ABS/AKGB ABS
KD2/PVC/AKGB PVC
Schluter®-KERDI-DRAIN
With Brushed nickel anodized aluminum grate (ANIGB)
KD2/ABS/ANIGB ABS
KD2/PVC/ANIGB PVC
Tamper prood screws
KD/TPSCRW Tamper proof screw
KD/TPWRCH Wrench
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