0901082 Rev: D (08/08) Page 6 of 12
PROBE INSTALLATION (if equi ed)
(1) Install the robe in the wash tank below the water
level. It should be away from incoming water
su lies, near the recirculating um 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 unch
may be desired.
(2) Connect leads from the terminals on the robe to
the “ robe” terminals on the circuit board.
(3) For best results, use 18 AWG multi-stranded
co er wire for the robe connection. Avoid running
the wire near high voltage AC lines.
ELECTRICAL
Turn off all ower before wiring the control. Check
with a voltmeter to ensure ower is off.
MAIN POWER CONNECTION
One ste -down transformer is rovided with the UMP
control. Connect the high voltage side, through a switch
or circuit breaker in close roximity to the equi ment
and marked UMP, to any 115/208/230 VAC ower
source that is “on” when the dishmachine is “on” (i.e.
mains switch on dishmachine).
NOTE: The transformer rovides ower to both the
detergent and rinse circuits. The UMP will only o erate
detergent or rinse when electrically signaled.
To wire main ower connection:
(1) Check the voltage of the main ower source and
make sure that it matches one of the three available
in ut voltages (115/208/230 VAC) of the
transformer inside the Ultra Micro-Pro.
(2) Remove all ower from the dishwasher.
(3) Connect leads from the main ower source to the
a ro riate wires on the transformer.
* CAUTION: The UMP unit has high voltage connected
to the transformer. Always disconnect main ower when
servicing the unit.
REMOTE ALARM
A remote 3 - 28 VDC alarm may be wired to the “alarm”
terminals on the circuit board. See wiring diagram on
age 10.
DETERGENT POWER SIGNAL
A detergent ower signal is required to activate the
detergent robe sensing or robeless initial charge.
Detergent ower can be jum ered from main ower.
(1) Check the dishwasher for a ower source that is
active during the washcycle only (exam le: the
magnetic contactor that controls the wash um
motor) and verify voltage. The Ultra Micro-Pro
circuit board will acce t a detergent ower signal of
14 - 240 VAC.
(2) Remove all ower from the dishwasher.
(3) Connect leads from the detergent signal ower
source to the detergent signal terminals on the
circuit board.
RINSE POWER SIGNAL
In addition to running the rinse um , the rinse ower
signal also triggers the detergent “recharge” injection if
robeless mode is selected
(1) Check the dishwasher for a ower source that is
active during the rinse cycle only (exam le: the
rinse solenoid or rinse cycle light) and verify
voltage. The Ultra Micro-Pro circuit board will
acce t a signal of 14 - 240 VAC. If a direct signal
can’t be located on the dishwasher, a ressure
switch can be used to rovide a signal (see next
section below).
(2) Remove all ower from the dishwasher.
(3) Connect leads from the rinse signal source to the
rinse signal terminals on the circuit board.
PRESSURE SWITCH RINSE ACTIVATION
An o tional remote ressure switch kit is available for
a lications where a rinse ower signal can’t be located
on the dishwasher. The ressure switch is used to
rovide a rinse ower signal to the Ultra Micro-Pro’s
circuit board when the switch is activated by ressure in
the dishwasher’s rinse line. This is done by using ower
from the system’s transformer as the signal voltage
source, and sim ly letting the ressure switch make/
break the connection. To use a ressure switch:
(1) Remove all ower from the dishwasher and the
dis enser.
(2) Wire the ressure switch terminals as shown in the
wiring diagram on age 10.
