Specifications

Drain Requirements for Upright Dishmachines
Follow local codes
Gravity drain line is 2”
Close petcock on wash pump before operating machine
Dishmachine scrap accumulators prevent clogged building drains. The scrap accumulator is accepted as
an indirect waste interceptor (UPC (A)608 pg. 57.
Plumb dishmachine drain (1 1/2” FPT elbow or 2” FPT tee) located under sump to front of dishmachine scrap
accumulator (connection is provided on some models). If scrap accumulator is free-standing (on legs) make sure this
connection is running downhill to the scrap accumulator. Dual type (hanging) scrap accumulators must be attached
to the frame of the machine before connecting drain (see “Dual” note). ADS provides scrap accumulators with a 2”
drain outlet. Scrap accumulator drain outlets are either 2” pipe or 2” straight no-hub connection No-hub
connections are utilized when scrap accumulators must be removed for servicing of dishmachine. To prevent clogging,
run drain line as straight as possible. Drain lines must be 2” diameter minimum. Do not plumb with tight elbows or
180 degree bends.
The use of floor sinks for draining can cause flooding. Always run gravity drain lines downhill.
Dual Scrap Accumulator Installation: Dual scrap accumulators come with an attachment slider bracket. This
bracket can be attached on either side to the bottom perimeter of the dishmachine frame. Position slider bracket to
frame with one angle facing up. This angle would be the side without bolt holes. Attach slider bracket to the frame,
using the nuts and bolts (provided). After installing bracket, slide the Dual Scrap Accumulator onto the rail formed by
the slider bracket and position accumulator flush with the front of the dishmachine.
Caution: Dishmachine scrap accumulator is not a sewer gas trap.
Plumbing
Connect to Water Supply
Important: Always check for local plumbing codes before installing. Flush water lines before connecting to
dishmachine.
Prior to plumbing the dishmachine, level machine by adjusting feet, at the bottom of each leg, up or down.
Water Heaters or boilers must provide the minimum temperature required by the type of machine and a minimum
recovery rate of 66 GPH for L Series, 82 GPH for 3D Series and AF, 92 GPH for AFB, and 118 GPH for 5AG-S, 5AG,
and 5CD. The recommended temperature range for optimal performance is 130-140 degrees F.
Caution: Do not exceed water tempertures above 150 degrees F. Residential hot water heaters are not sufficient
for commercial application. Typical On-Demand or “Flash Heaters” do not have flow rates capable of supplying
commercial dishwashers.
Connect 1/2” MPT water supply line to 1/2” FPT (Note 3/4” FPT on 5AG-S and 5CD) on the dishmachine’s fresh water
inlet manifold. Fresh water inlet manifold is behind control box on all models but the AF, AFB, and 5AG front mount,
which manifolds are located on the lower frame. Supply water must be 120 degrees F. minimum (130-140 degrees F.
recommended) from the primary heat source. The AFB requires 130 degrees F. Building source water pressure must
be at a minimum of 15 PSI flow during fill (water solenoid open).
WARNING: Never use a 3/8” water supply line.
Water Pressure Problems: Water pressure below 15 PSI flow will require additional measures to resolve low
pressure issues. To resolve water pressure problem, increase pipe diameter to 3/4” coming directly from hot water
heater. If problem persists, suggest installing pressure bladder tank at 5 gallon minimum capacity. Another option
would be to order the machine with a longer time cycle, allowing for longer fill time.