Page 1 of 8 0900820 (draft 04/00)
03/3/86
,16758&7,210$18$/
The new MPL-1000 PLUS is designed to meet today’s laundry chemical injection needs with economy and greater
flexibility in mind. Through advanced microprocessor technology, the MPL-1000 PLUS is one of Knight Equipment’s
least expensive laundry injectors, yet has all of the required features to meet every type of washroom condition. The
MPL-1000 PLUS can run up to 6 pump outputs in any one of three different modes; SIGNAL, SEQUENCE, and
RELAY mode. L.E.D indicators let the user know whether they are programming in SIGNAL or SEQUENCE mode,
what is being programmed, the mode the MPL-1000 PLUS is running in, and which pump is being signaled. The
MPL-1000 PLUS has dual formula capability for light or heavy soil conditions for each pump, with separately
programmable delay times for each formula. Innovative use of delay times allows calibration to be a one-man job. All
programmed times are stored in a non-volatile memory which cannot be altered by voltage spikes or power outages.
All signal inputs have independent signal and common connections, allowing multi-washer connections to one circuit
board. The signal input circuitry will accept and verify a signal anywhere between 18 to 240 volts (AC or DC).
When connecting signal wires to the MPL-1000 PLUS, always check the schematic of the washmachine. If in doubt
about the installation, please contact your nearest authorized Knight representative or contact the machine
manufacturer at the number listed below.
MACHINE DESCRIPTION CITY/STATE PHONE
American Amer. Laundry Machinery Cincinnati, OH (503) 731-5500
Braun G.A. Braun, Inc. Syracuse, NY (315) 475-3123
Cascadex Amer. Laundry Machinery Cincinnati, OH (503) 731-5500
Cook Cook Machinery Co. Dallas, TX (214) 421-2153
Dyna Wash Edro Corporation E. Berlin, CT (203) 828-0311
Hammond Washmaster Systems Memphis, TN (901) 362-0023
Huebsch McGraw Edison Co. Cincinnati, OH (503) 351-6510
Inn House Wascomat of America Inwood, NY (516) 371-4400
Milnor Pellerin Milnor Corp. Kenner, LA (504) 467-9591
Schulthess Schulthess Machinery Bethesda, MD (301) 656-9308
Speed Queen Ametek Grand Prarie, TX (214) 647-2626
Troy Ametek Grand Prarie, TX (214) 647-2626
Uniwash Unimac Company Marianna, FL (904) 526-3405
Washex Washex Machinery Co. Wichita Falls, TX (817) 855-3990
Wascomat Wascomat of America Inwood, NY (516) 371-4400
Zanussi Zanussi Corporation New York, NY (212) 532-5494
VOLTAGE INFORMATION
Main input power voltages are determined by use of “jumpers” near the power transformer:
For 120v AC, jumpers are placed on JP17 and JP19 only.
For 240v AC, jumpers are placed on JP18 and “Spare Jumper” only.
Be sure that this voltage matches the intended main power voltage. The voltage selected by the jumpers MUST
MATCH the pump motor voltage and should NOT BE TOUCHED if the MPL-1000 PLUS is received as a new item.
0900820 draft (04/00) Page 2 of 8
SIGNAL MODE OPERATION
In signal mode operation, signals received for each pump activate programmed run and delay times for that pump.
To select signal mode, move the MODE SELECT jumper located above the RELAY, SINGL, and SEQ. L.E.D.’s to
the jumper terminals located above the SIGNL MODE L.E.D. (JP4).
•
PROGRAMMING RUN AND DELAY TIMES
[METHOD 1: USING THE UP/DOWN BUTTONS TO SELECT TIME]
•
RUN TIMES
(1) Select the desired formula using the black slide switch located on the front left corner of the circuit board, by
moving the slide switch to either the formula #1 or #2 position.
(2) Depress and release the “MODE SELECT” button until “PUMP TIME” L.E.D. is lit.
(3) Depress the UP button for 1 second and release.
(4) Depress and release the “PROGRAM/PRIME” switch of the pump # to be programmed.
(5) Depress and release the UP button or the DOWN button to select the desired run time. The KDC Timer displays
the run time in seconds. When the KDC Timer display returns to “000", the input time run has been stored.
(6) Repeat the above steps for every pump to be programmed in each formula.
•
DELAY TIMES
The Delay Time is the time from when a pump activation signal is acknowledged by the board to when the related
pump is required to run.
(1) Select the desired formula using the black slide switch located on the front left corner of the circuit board, by
moving the slide switch to either the formula #1 or #2 position.
(2) Depress and release the “MODE SELECT” button until “DELAY TIME” L.E.D. is lit.
(3) Depress the UP button for 1 second and release.
(4) Depress and release the “PROGRAM/PRIME” switch of the pump # to be programmed.
(5) Depress and release the UP button or the DOWN button to select the desired run time. The KDC Timer displays
the delay time in seconds. When the KDC Timer display returns to “000", the input delay time has been stored.
(6) Repeat the above steps for every pump to be programmed in each formula.
[METHOD 2: PROGRAMMING WHILE RUNNING A PUMP]
•
RUN TIMES
(1) Select the desired formula using the black slide switch located on the front left corner of the circuit board, by
moving the slide switch to either the formula #1 or #2 position.
(2) Depress and release the “MODE SELECT” button until “PUMP TIME” L.E.D. is lit.
(3) Depress and release PROGRAM/PRIME" switch of the pump # to be programmed. The pump will begin to run
and the “PUMP TIME” L.E.D. will flash.
(4) After the pump has run the desired length of time, depress and release the “PROGRAM/PRIME” switch of the
pump # again. The pump will shut off and the “PUMP TIME” L.E.D. will stop flashing. The programmed time is
now transferred and stored in memory. Changing this time is done by programming a new time over the old one.
(5) Repeat steps #3 and #4 for each pump to be programmed.
352*5$00,1*
Page 3 of 8 0900820 (draft 04/00)
(6) If an alternate formula is to be used, move the black slide switch to the position of the formula to be used, and
repeat steps #3 and #4.
(7) When finished programming the pumps, move the slide switch back to the formula #1 position.
•
DELAY TIMES
(1) Select the desired formula using the black slide switch located on the front left corner of the circuit board, by
moving the slide switch to either the formula #1 or #2 position.
(2) Depress and release the “MODE SELECT” button until “DELAY TIME” L.E.D. is lit.
(3) Depress and release “PROGRAM/PRIME” switch of the pump # to be programmed. The “DELAY TIME” L.E.D.
will flash, indicating that a delay time is being programmed.
(4) When sufficient delay time has been reached, press the “PROGRAM/PRIME” switch again. The flashing L.E.D.
will shut off and the programmed time will be stored in memory.
(5) Repeat steps #3 and #4 for each pump which requires a delay time.
(6) If an alternate formula is to be used, move the black slide switch to the position of the formula to be used, and
repeat steps #3 and #4.
(7) When finished programming the pumps, move the slide switch back to the formula #1 position.
SEQUENCE MODE OPERATION
In sequence mode operation, a single continuous signal is used to activate a programmed “sequence” of run and
delay times, or events. The signal MUST be present for the duration of programmed events. If the signal is
interrupted, the “sequence” will stop and hold its position. If the signal is re-applied less than 3 minutes
after
interruption, the sequence of programmed events will continue from the interruption point. If the signal is re-applied
more than 3 minutes after the interruption, the sequence will re-start from the first programmed event. The delay time
is the amount of time that elapses from acknowledgment of the continuous signal to the time that the product is
required for each and every pump. To select sequence mode, move the jumper located above the RELAY, SINGL,
and SEQ. L.E.D.’s to the jumper terminals located above the SEQ. MODE L.E.D. (JP5).
NOTE: Programming in SEQUENCE MODE can be done
with the Black Slide Switch in the FORMULA #1 Position
ONLY.
•
PROGRAMMING RUN TIMES
Programming run times can be performed by either of the two methods explained in detail in SIGNAL MODE
OPERATION / PROGRAMMING RUN TIMES section of these instructions. When programming is complete, remove
continuous signal.
•
PROGRAMMING DELAY TIMES
[METHOD 1: USING A WASH SIGNAL TO PROGRAM THE SEQUENCE]
(1) Depress and release the “MODE SELECT” button until “DELAY TIME” L.E.D. is lit.
(2) Apply an AC signal to the PUMP #1 input ONLY. NO other inputs can be used in SEQUENCE MODE. This
signal usually represents the beginning of a wash cycle sequence.
(3) While the signal is active, the DELAY TIME light will flash, representing the “running” of a wash cycle. After the
desired delay time period, depress and release the PRIME/PROGRAM switch of the pump # to be activated at
that interval in the washing machine cycle. The delay time for that pump # is now programmed.
NOTE: The delay time can be programmed in any fraction of minutes, but ONLY MINUTES will be displayed on
the three digit KDC timer display (ex: a programmed time of 0:00 to 0:59 will display “000"; a programmed time
of 1:32 will display ”001"; a programmed time of 2:58 will display “002", etc).
(4) The next pump to be programmed, can now be programmed using step #3. Pumps to be programmed can be
selected in any sequence. Pumps do not have to be programmed in order (i.e. 2, 3, and 4). A pump CANNOT
BE programmed to run more than one time during a “sequence”.
(5) When programming is complete, remove continuous signal.
0900820 draft (04/00) Page 4 of 8
7+()/86+0$1,)2/'
[METHOD 2: USING THE UP/DOWN BUTTONS TO SELECT TIME]
DO NOT apply a signal when programming Delay Times using Method 2 in Sequence Mode.
(1) Depress and release the “MODE SELECT” button until “DELAY TIME” L.E.D. is lit.
(2) Depress the UP button for 1 second and release.
(3) Depress and release the PROGRAM/PRIME switch of the pump # to be programmed.
(4) Depress and release the UP button to select the desired delay time. Using this method of programming, the
delay time can be programmed in MINUTES ONLY
. The KDC timer will display the delay time in minutes. When
the KDC timer display returns to “000", the input time has been stored.
(5) Repeat steps 3 and 4 for each pump to be programmed. Do not program a pump to run more than one time
during a “sequence”.
•
EXECUTING RUN TIMES
If the input signal is removed for 3 minutes, and reapplied, then the “run” sequence will begin from the first pump
programmed. The pumps will execute their programmed run times in the sequence in which they have been
programmed. If the input signal is removed for less than 3 minutes, and reapplied,
then the program halts, and time
is not counted down.
The “programming” sequence will then continue from the input signal interruption point, when
the input signal is reapplied.
RELAY MODE OPERATION
More and more machines today contain their own microprocessor controls which can operate chemical injection
pumps. In “Relay Mode”, signals received for each pump activate that pump as long as the signal is active. No
programming is required. To select Relay Mode, move the jumper located above the RELAY, SIGNL, and SEQ L.E.
D.’s to jumper terminals located above the RELAY MODE L.E.D. (JP6). Upon receipt of a pump activation signal
from the machine controller, the corresponding pump will run. The pump will run as long as the signal is present.
There is no signal verification delay (5.1 seconds) in relay mode.
Typical laundry installations utilize incoming and outgoing supply lines for each chemical that might be injected into a
wash machine. These supply lines, over a period of time, suffer from chemical breakdown caused by the supply
products that flow through them, and may clog or break. A flush manifold assembly flushes liquid laundry supply
tubes with water after supplies have been injected into the machine. The flush manifold can be used in Signal and
Sequence modes only.
FLUSH VALVE METHOD OF OPERATION
While a liquid chemical is being injected into a manifold, water is simultaneously injected into the manifold. After the
chemical injection is complete, the manifold will continue to be flushed with water for a programmed amount of time.
ENABLING THE MPL-1000 PLUS FLUSH VALVE
(1) Move the jumpers on the upper left-hand corner of the board to FLUSH. Because the MPL-1000 uses pump #6
as the flush output, ensure that the load count jumpers are not
set to count off of pump #6.
(2) Connect the wire from the solenoid coil to the pump #6 terminals on the MPL-1000. ENSURE THAT THE
VOLTAGE OF THE COIL MATCHES THE VOLTAGE OF THE MPL-1000 BOARD.
(3) The flow switch of the flush valve assembly is designed to ensure flow of water. Connect the flow switch to the
FLUSH SWITCH terminals on the MPL-1000 board located inside the pump housing. If it is not desired to
monitor the flow of water, connect the FLUSH SWITCH terminals together on the MPL-1000 board. Connect a
24 VDC buzzer to the BUZZER terminals of the MPL-1000 board. This buzzer will sound when a “flush error”
takes place (see step #5).
Page 5 of 8 0900820 (draft 04/00)
237,216
(4) Adjust the programming for pump #6 for the amount of time that the flush manifold will flush with water AFTER
chemical has been injected. The manifold will always flush with water WHILE chemical is being injected.
(5) During operation, the flush manifold will flush each time chemical is injected into the machine. During flush, if
the flow switch connected to the FLUSH terminals is not closed (or the terminals are not jumped), a “flush error”
will occur. A flush error will a) shut the system down, b) sound the buzzer connected to the BUZZER terminals,
and c) be indicated by a “FLE” on the counter. If a flush error occurs, correct the problem, depress the RESET
button, and restart the load.
PRIMING THE PUMPS
[METHOD 1]
(1) Move the jumper located above the RELAY, SIGNL, and SEQ L.E.D.’s to jumper terminals located above the
RELAY MODE L.E.D. (JP6).
(2) Push and hold the “PROGRAM/PRIME” switch for the pump to be primed. The pump will run as long as the
switch is depressed. Run each pump until each supply line is full.
[METHOD 2]
(1) Move the MODE SELECT jumper located above the RELAY, SINGL, and SEQ. L.E.D.’s to the jumper terminals
located above the SIGNL MODE L.E.D. (JP4).
(2) Depress and release the “PROGRAM/PRIME” button for the pump to be primed. After the programmed delay
time has finished, as indicated by the flashing “PROGRAM DELAY” L.E.D., the pump will run for its programmed
run time.
(3) If a long delay time has been programmed, simply push the “PROGRAM/PRIME” button again when the
“PROGRAM DELAY” L.E.D flashes. The corresponding pump will run for its programmed run time, and its
programmed delay time will be “stepped over”. In no way will this change the programmed delay time for the
pump.
HOW TO CALCULATE PUMP RUN TIMES
(1) Decide number of ounces (volume) of product required.
(2) Pump 30 seconds of product into a measuring cup and calculate: Ounces/Second = Ounces Measured divided
by 30 Seconds
(3) Time (in seconds) to be programmed for the amount of product: Time (Seconds) = Ounces of Product Required
divided by Ounces/Second
Example:
(1) Volume required = 10 ounces
(2) 15 ounces of product is pumped in 30 seconds. So: Ounces/Second = 15 ounces = .5 ounces/second divided
by 30 seconds
(3) Therefore, run time to be programmed will be: Time (Seconds) = 10 (oz. required) = 20 seconds divided by 5
(oz./second)
RSB-1000
The RSB-1000 is a remote signal box which can perform formula select and bleach defeat functions via a hardwired
connection to the MPL-1000 PLUS. The RSB-1000 is then mounted to the front of the wash machine with a reusable
fastening tape.
To enable the bleach defeat feature with the RSB-1000:
0900820 draft (04/00) Page 6 of 8
,1-(&725,167$//$7,21
(1) Using the “BLEACH DEFEAT” jumper located on the lower left corner of the circuit board, select the pump which
is dispensing bleach. Only pumps 2, 3, or 4 can be used for bleach defeat.
(2) Connect the black and white wires from the RSB-1000 to the connections marked “SWITCH CON/NO
VOLTAGE - BLEACH DEFEAT”.
(3) When this switch is depressed, the next signal for bleach will be ignored. Following the operation of the bleach
pump, the MPL-1000 PLUS will then switch to normal operation.
(4) Depressing the switch while the bleach defeat feature is active will not affect its operation. Only the “next” bleach
signal will be defeated.
To enable the formula select feature with the RSB-1000:
(1) Ensure the black formula select slide switch on the MPL-1000 PLUS is set to formula #1.
(2) Connect the red and orange wires of the RSB-1000 to the connections marked “SWITCH CON/NO VOLTAGE -
FORM SEL”.
(3) Formula #1 is the “default” formula. The FORMULA SELECT switch allows the operator to switch from formula
#1 to formula #2. By “flipping” a FORMULA SELECT toggle switch, formula #2 will be active. The next pump
signaled will run for the programmed amount in formula #2.
(4) When switching from formula #2 to formula #1, “flipping” the FORMULA SELECT toggle switch back at any time
will change the MPL-1000A to formula #1. The next pump signaled will run for the programmed amount in
formula #1.
KDC-1000 DIGITAL COUNTER
The KDC-1000 is a 3 digit plug-in digital counter that “plugs” into the front of the control board. The circuit board is
designed so that the counter increments when the last pump in the system activates. Selecting the last pump in the
system is done with “jumpers” in the following positions on the circuit board:
If the last pump is pump #3, use pins labeled “COUNT ON PUMP #3" (JP9)
If the last pump is pump #4, use pins labeled “COUNT ON PUMP #4" (JP10)
If the last pump is pump #5, use pins labeled “COUNT ON PUMP #5" (JP11)
If the last pump is pump #6, use pins labeled “COUNT ON PUMP #6" (JP12)
The counter will increment whether or not a pump is connected to the corresponding pump number. The counter will
not increment when priming the last pump in the system. In addition, the memory for the counter is unaffected by
changes in main power.
The count displayed on the KDC-1000 may be reset to zero. To reset the count:
(1) Using the “MODE SELECT” button, select the “RUN MODE” L.E.D.
(2) Simultaneously depress the “PROGRAM/PRIME” buttons for pumps #1, #2 and #3. The counter and its memory
will immediately reset to “000".
PRE-INSTALLATION
Before the equipment is installed you should survey the installation site thoroughly. At the very least, your survey
should include the following:
Check to make sure that all functions of the laundry machine are operating properly. Some of these are: drain valve,
hot water valve, flush-down valves, water level, program card reader, and extract motor.
Check proposed location for a 120 or 240 VAC main power source.
Check between voltage output of supply signals coming from laundry machine with a voltmeter. (Note: Measure
voltage between control signal and signal common, NOT control signal and case ground).
Page 7 of 8 0900820 (draft 04/00)
INJECTOR INSTALLATION
(1) Remove the locking cover panel from the injector system using the key provided.
(2) Mount the injector in a convenient location on a wall near the supply containers. This location is usually near the
laundry machine; however, it can be mounted as a remote pumping system. It is recommended that the injector
be mounted within 50 feet of the laundry machine.
(3) Ensure that the voltage of the system matches the main power voltage.
(4) It is very important to measure the signal voltage between the signal wire and the signal common (NOT case
ground). This measurement must be taken when the laundry machine is operating and when products are being
called for.
BEFORE CONTINUING TO THE NEXT STEP, DISCONNECT ALL ELECTRICAL CONNECTIONS TO THE
LAUNDRY MACHINE, CARD READER, AND INJECTOR. VERIFY THIS WITH A VOLTMETER.
(5) Run all electrical wires through suitable conduit. Check local electrical wiring codes.
(6) Inspect the wiring diagram for the laundry machine and card reader. They are available from the manufacturer
upon request.
(7) Insert one end of the suction tube into the left side of the squeeze tube in the peristaltic pump(s).
(8) Cut the suction tube to length and insert the other end into the appropriate supply container using PVC pipe as a
support.
(9) Insert one end of the discharge tubing into the right side of the squeeze tube in the peristaltic pump(s).
(10)Form an anti-siphon loop (with the loop pointing “down”) with the other end of the discharge tubing and insert
the end into the supply pocket of the machine.
(11)Connect the 120 VAC or 240 VAC supply voltage to the system.
(12)See PRIMING PUMPS for priming details.
(13)Program the system via the PROGRAMMING instructions in manual.
(14)Make any adjustments to programming which can be due to product viscosity, distance pumped, etc.
(15)Energize laundry machine and card reader. The system should now be operational.
MAINTENANCE
The squeeze tubes inside the pump head(s) are the only parts that should require any attention. These tubes should
be lubricated with Knight KTL-20 Tube Gel on a monthly basis. In addition, the squeeze tubes should be replaced
every 6 to 8 months to prevent down time due to a cracked/aged tube.
TECHNICAL INFORMATION
For general information, Knight Equipment can provide a Laundry Interface Manual which contains specific wiring
information on a variety of commercial dishwashers. In addition, plug-in adapters which correspond to the signal
plugs used on some machines can be provided for a clean, quick installation.
Technical questions regarding a particular installation can be referred to the nearest Knight representative for
assistance.
0900820 draft (04/00) Page 8 of 8
World Headquarters:
20531 Crescent Bay Dr.
Lake Forest, CA
92630-8825 USA
TEL: (949) 595-4800
FAX: (949) 595-4801
Atlanta Branch:
8111 Technology Dr. NE
Covington, GA
30014 USA
TEL: (770) 787-9400
FAX: (770) 787-1155
Toronto Branch:
2880 Argentia Road, Unit 6
Mississauga, Ontario
L5N 7X8 Canada
TEL: (905) 542-2333
FAX: (905) 542-1536
London Branch:
#15 Brunel Centre
Newton Road, Crawley
West Sussex UK RH102UB
TEL: (44) 1293-615570
FAX: (44) 1293-615585
Sydney Branch:
Unit 28, 317-321
Woodpark Rd., Smithfield
NSW Australia 2164
TEL: 61-29-725-2588
FAX: 61-29-725-2025
Amsterdam Branch:
Marssteden 68
7547 TD Enschede
The Netherlands
TEL: 31-53-428-58-00
FAX: 31-53-428-58-09
A Unit of IDEX Corporation
DISCLAIMER
Knight Inc. does not accept responsibility for the mishandling, misuse, or non-performance of the described items
when used for purposes other than those specified in the instructions. For hazardous materials information consult
label, MSDS, or Knight Inc.
WARRANTY
All Knight controls and pump systems are warranted against defects in material and workmanship for a period of
ONE year. All electronic control boards have a TWO year warranty. Warranty applies only to the replacement or re-
pair of such parts when returned to factory with a Knight Return Authorization (KRA) number, freight prepaid, and
found to be defective upon factory authorized inspection. Bearings and pump seals or rubber and synthetic rubber
parts such as “O” rings, diaphragms, squeeze tubing, and gaskets are considered expendable and are not covered
under warranty. Warranty does not cover liability resulting from performance of this equipment nor the labor to re-
place this equipment. Product abuse or misuse voids warranty.
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