STERO SD3 DOOR-TYPE DISHWASHER |
7
INSTALLATION
(continued)
WATER REQUIREMENTS
Proper water quality can improve warewashing performance by reducing spotting, lowering chemical supply
costs, improving productivity and extending equipment life. Local water conditions vary from one location to
another. The recommended proper water treatment for effective and efficient use of this equipment will also
vary depending on the local water conditions. Ask your municipal water supplier for details about local water
specifics prior to installation.
Recommended water hardness is 3 grains of hardness per gallon, or less. Chlorides must not exceed 30 parts
per million. Water hardness above 3 grains per gallon should be treated by a water conditioner (water soft-
ener or in-line treatment). Water treatment has been shown to reduce costs associated with machine cleaning,
reduce the need for deliming the dishwasher and reduce detergent usage.
Sediment, silica, chlorides or other dissolved solids may lead to a recommendation for particulate filtration or
reverse osmosis treatment.
If an inspection of the dishwasher or booster heater reveals lime build-up after the equipment has been in
service, in-line water treatment should be considered, and, if recommended, should be installed and used as
directed. Contact your local service provider for specific recommendations.
PLUMBING CONNECTIONS
Plumbing connections must comply with applicable sanitary, safety, and plumbing
codes.
Drain Connection
The drain connection is a 1
1
⁄
2
" externally threaded pipe connected straight
down from the bottom of the wash tank (Figure 7). The connection can be
made in any direction by using the proper fitting (not supplied) and routing to
the appropriate drain line.
If a grease trap is required by code, it should have a minimum flow capacity
of 14 gallons per minute.
Water Connection
A suitable water hammer arrestor should be installed in the water line just ahead of the dishwasher.
DRAIN
Figure 7
