Steam System Connections - Meiko K-200 Owner's Installation, Operation And Maintenance Manual

S 3 - I
ECTION NSTALLATION
1. Check that iron or other metal particles
cannot contaminate the fresh water
supplied to the dishwasher.
2. Check the incoming water temperature.
• The final rinse line should be
approximately 50°F for optimal
operation. This water is circulated
through the machine's waste air heat
recovery system and routed to the
internal booster heater for the final rise
to 180°F.
• The tank fill line should be 110-140°F
to reduce the machine's preheat time.
3. Check the incoming water hardness.
Meiko recommends a hardness of 4 grains
per U.S. gallon (7 DH German hardness).
4. Check that the water flow on the final rinse
line is adequate. All K-Tronic series
machines have a final rinse flow rate of
1.42 U.S. gallons per minute (84.7 gallons/
hour).
5. Because the water inlets incorporate line
strainers, additional traps are unnecessary
unless required by local, national or
international codes.
6. Connect the customer-supplied water
lines to the appropriate connections. Both
connections are 3/4" NPT female.

3.14 Steam System Connections

IMPORTANT
In some cases, local codes dictate that steam
system connections be made only by a
certified professional.
The steam supply and condensate return
connections are located at the unload end of
the machine. Their exact position depends
upon the machine configuration.
For machines with a blower dryer, the
connections are accessed by removing the
lower front panel at the unload end of the
machine. For machines without a blower
dryer, they are accessed by removing the
lower unload-end panel. See Figure 3-12.
Page 14
Figure 3-12: Accessing the
steam connections
Machines with blower
dryer: Remove lower front
panel at unload end
Note that the condensate return is only for
the steam system of the dishmachine. If the
steam supply line has an upward slope, it will
require its own condensation removal system
(moisture trap, pump, etc.) that is in
compliance with all applicable local codes.
1. Check the incoming steam pressure. At
the machine connection, pressure should
be 10-29 psi and constant.
2. Check that the volume of steam delivered
is sufficient for proper operation.
• K-200 Series dishmachines require
187 lbs./hr. (51kW) of steam for proper
operation.
• K-400 Series dishmachines require
253 lbs./hr. (69 kW) of steam for proper
operation.
Note that a blower dryer will not add to
the steam consumption - all blower dryers
use 3kW electric heaters.
3. Connect the customer-supplied steam line
to the machine's steam connection. The
machine's connection is 2" NPT male.
4. Plumb the condensate return connection
to a floor drain, or to a building condensate
return line, as per local codes. The
machine's condensate return connection
is 1" NPT male.
Machines without blower
dryer: Remove lower
unload-end access panel