American Standard 3052OD.0 Series Installation Instructions And Owner's Manual page 16

THRESHOLD DRAIN INFORMATION
All gel coat walk-in bathtubs are provided with a threshold door drain. All acrylic walk-in bathtubs feature
the "Patented T5 Door System" which does not require the threshold drain.
CONNECTION OF THE DOOR DRAIN
• Door Drain requires the connection to a minimum 1-1/2" sanitary drain line.
• Use UPC Approved PVC Glue, Primer, and Schedule 40 1-1/2" pipe.
• The door drain, check valve, and 3/8" vinyl tubing are installed on the walk-in bathtub
• The door drain coupling has an integral 3/8" barb for connection of the door drain line.
• The drain coupling must be located between the drain tee and shoe along the tub's drain line.
• The 3/8" barb on the drain coupling must be positioned parallel to the sub floor.
• Connect the door drain assembly and drain coupling with 3/8" vinyl tubing.
• Verify the coupling barb, check valve, and 3/8" tubing are horizontal to the floor.
• Glue all components and tubing in place use PVC Glue.
Overflow
Drain cable
Drain tee
Sub floor
754818-100 Rev. A
THRESHOLD DRAIN INSTALLATION
DOOR DRAIN ASSEMBLY
Tub wall
Drain shoe
Coupler with
3/8" barb
P-trap
Door
Door drain
Inline check valve
Note: valve & tubing must be installed angled
downward toward drain for proper drainage.
16
OWNER'S MANUAL
COUPLER with 3/8" BARB
To drain shoe
To door drain