Fresh Water Supply Connection; Drain Hose Positioning - Meiko DV 120.2 Owner's Installation, Operation And Maintenance Manual

3.11 Fresh Water Supply Connection

CAUTION
Before connecting the water supply hose, the
line MUST be flushed clean of all debris,
including (but not limited to) pipe sealant,
metal particles, solder, etc. This debris can
damage the appliance.
IMPORTANT
In some cases, local codes dictate that water
supply connections be made only by a
certified professional.
1. Check that iron or other metal particles
cannot contaminate the fresh water
supplied to the utensil washer.
2. Check that the incoming water pressure
is within the acceptable range for the
appliance (8.7-72.5 psi, 0.6-5.0 bars). It
may be necessary to increase the pres-
sure (with a booster pump) or to reduce
the pressure (with a reducing valve).
3. Check the incoming water temperature.
MEIKO recommends a water temperature
of 140°F/60°C for optimum operation,
although if necessary the appliance will
sanitize correctly using water at any
temperature. Colder water will result in a
longer preheat time (during initial startup)
and may extend the cycle time to allow
the final rinse water to heat to 180°F/82°C.
4. Check the incoming water hardness.
MEIKO recommends a hardness of 4-6
grains per U.S. gallon.
Figure 3-13: Fresh water supply and
drain connections
Lower rear
of machine
Fresh water
connection
5. Because the water inlet incorporates a
stainless steel dirt trap, an additional trap
is unnecessary unless required by local,
national or international codes.
6. The utensil washer includes a water supply
line that ends in an enclosure containing
the water inlet valve and the Aqua-Stop
shutoff valve (see Figure 3-13). Connect
the customer-supplied water line to the
fitting on the end of this enclosure. Use a
sealing compound on the threads to ensure
that no leaks are present in the connection.
7. Check that the water line is long enough
to permit the unit to be repositioned for
servicing.

3.12 Drain Hose Positioning

1. Check that the end of the drain hose will
empty into a drain with a minimum
diameter of 1-1/2"/38mm.
2. Check the type of drain that will be used.
Because the DV 120.2 uses a pumped drain,
either a floor or wall drain is acceptable.
CAUTION
No portion of a wall drain system may be
higher than 24" (610m) A.F.F. to ensure
that the drain pump is operating within
rated specifications. See Figure 3-14.
3. Route the drain hose to the drain. In some
cases, a grease trap (supplied by others)
must be fitted into the waste water line. If
this trap is required for your installation,
check that it is present.
Drain
hose
S 3 - I
ECTION
Figure 3-14: Drain line
vertical rise limitations
No portion of
may be higher
NSTALLATION
drain system
than 24"
(610mm)
A.F.F.
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