Installation - Electrical - Knight Digi Set Serie Manual De Instrucciones

INSTALLATION — ELECTRICAL
There is a convenient wiring barrier provided inside the
unit (at the upper part of the case) for quick and easy
electrical connections. Wiring diagrams are also
provided on pages 50 & 51 for additional reference.
Digi Set systems are available with either one or two
transformers. Please read the following installation
steps carefully, noting special instructions that pertain to
the number of transformers in your Digi Set.
Main Power Connection
The main power connection only applies to single
transformer systems (typical). Disregard this section for
dual transformer systems.
You will need to connect the high voltage side of the
xfmr to a 115, 208, or 230 VAC power source that is
"on" when the dishmachine is "on" (i.e. mains switch on
dishmachine). The transformer provides power to both
the detergent and rinse circuits. The Digi Set will only
operate detergent or rinse when electrically signaled.
(1) Check the voltage of the main power source and
make sure that it matches one of the three available
input voltages (115/208/230 VAC).
(2) Remove all power from the dishwasher.
(3) Connect leads from the main power source to the
appropriate terminals on the wiring barrier.
Probe Installation (if required)
(1) Install the probe in the wash tank below the water
level. It should be away from incoming water
supplies, near the recirculating pump intake, and 3
to 4 inches from corners, heating elements, or the
bottom of the tank. If an existing mounting hole
cannot be located, use of a 7/8" hole saw or punch
may be desired.
(2) For best results, use 18 AWG multi-stranded
copper wire for the probe connection. Avoid running
the wire near high voltage AC lines.
(3) Connect the two leads from the probe to the probe
terminals on the wiring barrier.
If a temperature compensating probe will be used, be
sure to connect the wires from the temperature sensing
element on the probe to the temp probe terminals on the
circuit board.
0900869 Rev: C (02/04)
Detergent Power Signal
A detergent power signal is required to activate the
detergent probe sensing or probeless initial charge. A
detergent signal is not required when using probeless/
door mode, as the duration of the rinse signal will be
used to trigger initial charge.
(1) Check the dishwasher for a power source that is
active during the washcycle only (example: the
magnetic contactor that controls the washpump
motor) and verify voltage.
(2) Remove all power from the dishwasher.
(3) For single xfmr: Connect leads from the detergent
signal source to the detergent signal terminals on
the wiring barrier. The Digi Set system will accept a
detergent signal of 14 - 240 VAC.
For dual xfmr: Connect leads from the detergent
power source to the appropriate detergent
transformer terminals on the wiring barrier.
Detergent power must be 115, 208, or 230 VAC.
Rinse Power Signal
In addition to running the rinse pump, the rinse power
signal triggers the detergent recharge injection if
probeless mode is selected. The rinse signal will also
trigger the detergent initial charge if using probeless/
door mode.
(1) Check the dishwasher for a power source that is
active during the rinse cycle only (example: rinse
solenoid or rinse cycle light) and verify voltage.
(2) Remove all power from the dishwasher.
(3) For single xfmr: Connect leads from the rinse signal
source to the rinse signal terminals on the wiring
barrier. The Digi Set system will accept a rinse
power signal of 14 - 240 VAC.
For dual xfmr: Connect leads from the rinse power
source to the appropriate rinse transformer
terminals on the wiring barrier. Rinse power must
be 115, 208, or 230 VAC.
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