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Pump activation can be controlled as follows:
•
Solid detergent systems should use a probe
installed in the wash tank to measure de-
tergent concentration and allow activation
of the external pump. A dummy plug in
the bottom of the wash tank provides an
installation location for the probe.
•
Liquid detergent systems can use EITHER
a detergent concentration probe, OR a
timer system. A detergent concentration
probe is HIGHLY RECOMMENDED.
•
Liquid rinse aid systems should use a
rinse line pressure switch so that rinse aid
is dispensed only when the final rinse is
in operation. A 1/8" NPT female threaded
connection is provided in the rinse aid line
just below the final rinse plenum chamber.
The pressure switch should be installed
at this location.
Figure 3-6: Detergent connection
Load end of
machine (viewed
from rear)
Figure 3-7: Rinse aid connection
Unload end of
machine (viewed
from front)
Units wihout
prewash:
Dummy plug
Units with
prewash:
Tubing raceway
Rinse
Final rinse
aid line
plenum
connects
chamber
here
1/8" NPT female
connection for rinse
pressure switch
3.10 Installing an External Solid or Liquid
Detergent System
1. Locate the detergent line connection at the
load end of the machine. See Figure 3-6.
•
Machines WITH a prewash section
(K-66, K-76, K-80, K-86, K-90, K-100)
have the open end of a tubing raceway
at this location.
•
Machines WITHOUT a prewash
section (K-44, K-54, K-64) have a
dummy plug at this location, covering
a direct opening into the wash tank.
Remove the plug.
2. Route the detergent supply line to the
opening. For machines with a prewash
section, route the chemical supply tubing
completely down the raceway and into the
wash tank.
CAUTION
Make sure that the detergent line runs
completely down the raceway to the wash
tank. The raceway is NOT watertight, and
is NOT intended to be a tube for chemicals!
3. Fasten the line in place and seal the
connection.
4. If a detergent concentration probe will be
used, remove the dummy plug in the
bottom of the wash tank. Then, install the
detergent concentration probe and seal
the connection.
5. Check that the pump is correctly installed
according to the manufacturer's
instructions.
3.11 Installing an External Liquid Rinse Aid
System
1. Route the rinse aid supply line to the fitting
on the side of the final rinse plenum chamber
and fasten it in place. See Figure 3-7. Check
that the connection is secure and seal it.
2. Install a rinse pressure switch to the 1/8"
NPT female pipe connection just below the
final rinse plenum chamber. See Figure 3-7.
3. Check that the pump is correctly installed
according to the manufacturer's instructions.
S
3 - I
ECTION
NSTALLATION
Page 9
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