DEMA NITRO/NITRO EXPRESS REPLACEMENT GUIDE
INSTALLATION INSTRUCTIONS
I-993 Pg. 2 of 6
Rev. -- 10/01/09
WIRING THE REPLACEMENT BOARD
The internal power cables should have labels on
them to denote which is the rinse power cable and
which is the wash power cable. The rinse power
cable gets hooked onto the left connection point
for a two prong connection and the wash power
cable gets hooked onto the right connection point.
The rinse motor and detergent motor or valve
should always get hooked up with the black wire
hooked to the left spade connection and the red
wire hooked to the right spade connection. The
probe cable (if the unit is being run in
concentration mode will get hooked into the probe
cable inlet which is a blue box with screw down
terminals. Once everything is replaced, the unit
will need to be programmed to the specifications
that the last board was running. If the unit is a three product unit, wires from the sanitizer pump will need to be plugged
into the proper spots as well as shown on the diagram.
KIT 81.316.3 – CONTROL BOARD REPLACEMENT KIT FOR NITRO EXPRESS
THREE PRODUCT UNITS
KIT INCLUDES: CONTROL BOARD NITRO EXPRESS THREE
PRODUCT (81.283.2), 4 #4 SCREWS (81.20.2) AND PROGRAMMING
LABEL FOR FIREWALL (L1186).
To replace the control board, remove all power from the unit and from the dish
machine to which the unit is connected. Then, remove all wiring from the old
board. Make note where the wiring is at and which cables plug in to which
spots. Unscrew the 4 screws securing the control board. Place the new control
board in the unit and secure the control board with the 4 screws. Use the
diagram on the top of the page to help reconnect the wires to the proper places.
KIT 81.316.4 – DETERGENT PUMP/MOTOR CONVERSION AND REPLACEMENT
KIT
KIT INCLUDES: DETERGENT MOTOR (81.311.2), DRIVE ADAPTER (81.220.1), DETERGENT PUMP
ASSEMBLY (81.226.2), VALVE BRACKET COVER (81.279.2), #8 HI-LO SCREWS (44.116.2)
If converting from a detergent valve to a detergent pump, the
valve, pump cover, and valve cover inside the unit will need to be
removed. The valve bracket cover is used to cover the hole from
where the valve was connected to the unit.
To replace the detergent motor and pump, disconnect all power
to the unit. Unplug the detergent motor leads from the control
board. Take out the two screws securing the motor to the cover
of the unit. Place the new drive adapter on the motor and tighten
the screws to secure the motor to the cover. To replace the
pump, take the cover off the pump to expose the secure screw.
Take the screw out and take the rest of the pump off the cover.
Place the new pump on the cover and use the secure screw to
keep the pump head in place.
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