KNIGHT 0901222 UMP Digital Plus Warewash Dispenser Instruction Manual

KNIGHT 0901222 UMP Digital Plus Warewash Dispenser

Product Specifications

• * Model: UMP Digital Plus

  • Version: C
  • Date: 2024-0819
  • Rinse Speed: 0-100%
  • Sanitizer Speed: 0-100%
  • Rinse Limit: 0-100%
  • Rinse Delay: 0-100%
  • Initial Charge: 0-30s

Product Usage Instructions

Installation

1. Mount the unit with the provided bracket within three feet from the final rinse line.
2. Avoid mounting the unit in the direct path of steam to prevent short circuit.
3. Check plumbing and electrical codes before installation.

Rinse / Sani Plumbing

1. Install the provided 1/4 tube x 1/8 NPT injection fitting into the dishwasher rinse line.
2. Connect poly tubing between rinse pump’s squeeze tube and injection fitting.
3. Connect another tubing between rinse pump’s squeeze tube and pickup tube.
4. Tighten compression nuts and secure connections with plastic ties.

Frequently Asked Questions (FAQ)

• Q: How do I change the default settings on the UMP Digital Plus?
  A: To change the settings, navigate to the respective setting using the control panel and adjust the values accordingly. Refer to the user manual for detailed instructions on changing specific settings.

• Q: What should I do if the unit shows a concentration alarm?
  A: If the concentration alarm goes off, check the chemical levels, refill if necessary, and reset the alarm through the control panel. Ensure proper calibration of sensors for accurate readings.

UMP Digital Plus

Equipment Ratings
This includes equipment supply, description of I/O connections, duty cycle and operating environmental conditions.

• Pollution degree 2
• Installation category 2
• Altitude 2000 m
• Humidity 50% to 80%
• Power supply Input: 100 – 240 VAC, 1.52A,50/60 Hz
• Power supply Output: 24 VDC, 3.2A
• Indoor use only
• Temperature 5°C to 40°C
• Mains supply voltage fluctuations are not to exceed 10 percent of the nominal supply voltage

CAUTION: Wear protective clothing and eyewear when dispensing chemicals or other materials. Observe safety handling instructions (SDS) of chemical mfrs.
CAUTION: To avoid severe or fatal shock, always disconnect main power when servicing the unit.
CAUTION: When installing any equipment, ensure that all national and local safety, electrical, and plumbing codes are met.

SETTINGS GUIDE

| PROBE MODE| PROBELESS MODE
---|---|---
DOOR| CONVEYOR| DOOR| CONVEYOR
RINSE SPEED| 0 -100%| 0 -100%| 0 -100%| 0 -100%
SANITIZER SPEED| 0 -100%| 0 -100%| 0 -100%| 0 -100%
RINSE LIMIT| 0 – 30s| NO| 0 – 30s| NO
RINSE DELAY| 0 – 20s| NO| 0 – 20s| NO
INITIAL CHARGE| NO| NO| 0 – 150s| 0 – 128s
RECHARGE| NO| NO| 0 – 30s| 0 – 20s
RECHARGE AFTER N RACKS| NO| NO| 1 – 20| 1 – 20
CONCENTRATION| 0 – 199K| 0 – 199K| NO| NO
ALARM DELAY| 0 – 512s| 0 – 512s| NO| NO
PASSWORD| YES| YES| YES| YES
LANGUAGE| YES| YES| YES| YES
RESET RACK COUNT| YES| YES| YES| YES
LOW LEVEL ALARM| YES| YES| YES| YES
CONCENTRATION ALARM| YES| YES| NO| NO
RACK TIME| NO| 0 – 30s| NO| 0 – 30s
INITIAL CHARGE REPEAT| NO| NO| YES| YES
WATER CHANGE COUNT| 0 – 999| 0 – 999| 0 – 999| 0 – 999
DETERGENT PULSE %| 10 – 90%| 10 – 90%| NO| NO
DETERGENT PULSE RATE| 3 – 15s| 3 – 15s| NO| NO

Default Settings

• System is in Probe Mode
• System is set for Door Machines
• Detergent Pulse Rate is 5 Seconds (dry) or 3 Seconds (liquid)
• Default Password is 0000
• Sanitizer Pump Speed is 50%
• Sanitizer Runs with Rinse Pump
• Rinse Pump Speed is 50%
• Detergent Concentration Setpoint is 25
• Detergent Alarm Delay is set to 64 Seconds
• Rinse Limit is 30 Seconds
• Detergent Percentage Pulse is 50% (dry) or 85% (liquid)
• Rinse Delay is 0 Seconds
• Initial Charge is 30 Seconds
• Initial Charge Repeat is On
• Recharge is 5 Seconds
• Change Water Count is 0 Racks
• Number of Racks between Recharge is 1
• Rack Time is 12 Seconds

UMP Digital Plus Instructions

INSTALLATION

Mount the unit (using suitable hardware) with the provided bracket in the accessory kit. Try to keep the unit within three feet from the final rinse line to avoid long tubing runs.

CAUTION : Do not mount the unit in the direct path of steam. This can short circuit and permanently damage the unit. Mounting the unit on the side, on the back, or on the vents of the dishwasher may cause thermal overload and damage or hinder the performance of the unit.
Check all applicable plumbing and electrical codes before proceeding with the installation. This will help to ensure that the system is installed in safe and suitable manner. A wiring schematic of the dishwasher should be used as reference for making electrical connections — this is typically provided by the dishwasher manufacturer if one cannot be located on the machine itself.

Rinse / Sani Plumbing

1. Install the provided 1/4″ tube x 1/8″ NPT injection fitting into the side or bottom of the dishwasher rinse line between the rinse solenoid valves and the rinse jets. If necessary, drill a 11/32″ hole and tap to 1/8″ NPT. Use of a saddle clamp may be desired on copper rinse line for better support.
2. Cut a suitable length of 1/4″ OD poly tubing and connect between the discharge (right) side of the rinse pump’s squeeze tube and the injection fitting.
3. Cut a suitable length of 1/4″ OD poly tubing and connect between the suction (left) side of the rinse pump’s squeeze tube and the pickup tube provided. Be sure to draw tubing through the end of the pickup tube.
4. Hand-tighten the compression nuts on both the rinse fitting and pickup tube. Plastic ties can be used to cinch around the connections where the poly tubing is inserted into the pump’s squeeze tube.
5. Repeat the above steps for the sanitizer pump.

Liquid Detergent Plumbing

1. Install the provided bulkhead fitting through a wall of the wash tank (above water level). If an existing mounting hole cannot be located, use of a 7/8″ hole saw or punch may be desired.
2. Cut a suitable length of 1/4″ OD poly tubing and connect between the discharge (right) side of the detergent pump’s squeeze tube and the bulkhead fitting.
3. Cut a suitable length of 1/4″ OD poly tubing and connect between the suction (left) side of the detergent pump’s squeeze tube and the pickup tube provided. Be sure to draw tubing through the end of the pickup tube.
4. Hand-tighten the compression nuts on both the bulkhead fitting and pickup tube. Plastic ties can be used to cinch around the connections where the poly tubing is inserted into the pump’s squeeze tube.

Dry Detergent Plumbing

1. A powder or solid type feeder (not provided) should be used for dispensing dry detergent products. Follow the instructions included with the detergent feeder for installation, and recommended water temperature/pressure.
2. Cut a suitable length of 1/4″ OD copper tubing (not provided) and connect between the input side of the water solenoid and the water source. Maximum recommended water temperature is 140°F (60°C).
3. Cut a suitable length of 1/4″ OD copper tubing (not provided) and connect between the output of water solenoid to a powder or solid detergent feeder.
4. Carefully tighten the compression nuts on the water solenoid — over tightening may cause solenoid to leak. Tighten connections to the water source and detergent feeder as needed.

ELECTRICAL

Turn off all power before wiring the control. Check with a voltmeter to ensure power is off. The system has a 7-conductor cable for power and signals that will need to be routed through conduit per local codes.

Main Power Connection
One switching power supply is provided with the UMP control. Connect the high voltage side, through a switch or circuit breaker in close proximity to the equipment and marked UMP, to any 115—230 VAC power source that is “on” when the dishmachine is “on” (i.e. mains switch on dishmachine).

NOTE: The power supply provides power to both the detergent and rinse circuits. The UMP will only operate detergent or rinse when electrically signaled.

To wire main power connection:

1. Check the voltage of the main power source and make sure that it matches the available input voltages of the switching power supply.
2. Remove all power from the dishwasher.
3. Connect leads from the main power source to the appropriate wires on the external cable.

CAUTION : The UMP unit has high voltage connected to the power supply. Always disconnect main power 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 page 15.

Pressure Switch Kit
For applications that do not have a dedicated rinse signal from the dishwasher, the pressure switch can be used to create a rinse signal.

1. Remove power from the dishmachine. Ensure that power is removed from the dispenser.
2. Locate the rinse injection fitting presently installed on the dishmachine (if applicable). Near the injection point, drill a hole for the pressure switch. Drill the hole using a 11/32″ bit and tap to 1/8″ NPT.
3. Remove duckbill from checkvalve.
4. Wrap the threads of the pressure switch with 3 – 4 turns of plumbing tape, then install the pressure switch into the drilled/tapped hole.
5. Wire the pressure switch per the wiring diagram on page 14. Mount switch in close proximity to unit.
6. Connect wires from pressure switch to the terminals on the UMP circuit board.

Detergent Power Signal
A detergent power signal is required to activate the detergent probe sensing or probeless initial charge. The detergent signal can be jumpered from main power for applications where the main power is controlled by the on/off state of the dishmachine.

1. Check the dishwasher for a power source that is active during the wash cycle only (example: the magnetic contactor that controls the washpump motor) and verify voltage. The Ultra Micro-Pro circuit board will accept a detergent power signal of 14 – 480 VAC.
2. Remove all power from the dishwasher.
3. Connect leads from the detergent signal power source to the detergent signal wires on the external cable.

Rinse Power Signal
In addition to running the rinse pump, the rinse power signal also triggers the detergent “recharge” injection if probeless mode is selected

1. Check the dishwasher for a power source that is active during the rinse cycle only (example: the rinse solenoid or rinse cycle light) and verify voltage. The Ultra Micro-Pro circuit board will accept a signal of 14 – 480 VAC.
2. Remove all power from the dishwasher.
3. Connect leads from rinse signal source to the rinse signal wires on the external cable.

Conductive Probe Installation (if used)

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. Connect leads from the terminals on the probe to the wires on the probe cable.
3. For best results, use 18 AWG multi-stranded copper wire for the probe connection. Avoid running the wire near high voltage AC lines.

Inductive Probe Installation (if used)
Installation of an inductive probe requires the same mounting hole size in the wash tank. See the instruction sheet that comes with the inductive probe for more details on how to install the probe in the tank. Note that there are specific terminals on the circuit board (color coded) for an inductive probe.

OPERATION

Detergent — Probe / Inductive Mode
The system has the option of using a conductive or inductive probe. With the detergent signal “on”, the probe senses detergent concentration. When concentration drops below the setpoint, the control automatically turns on detergent feed. As detergent feeds, the control senses the rate at which the concentration is approaching the setpoint. The control then begins to pulse feeds to prevent overuse of chemical. The pulse feed rate depends on how fast the setpoint is approaching. The detergent alarm will sound if the setpoint is not reached within the alarm delay time period. The alarm can be temporarily silenced.

Detergent — Probeless Mode
Controls detergent concentration without a probe, based on timed detergent feed modes. Initial charge time feeds detergent to bring the dishmachine to working concentration when initially filled with water. The initial charge can be activated by a detergent signal, or by the rinse signal (of 30 seconds duration, or longer) when using door mode. The initial charge counter will increment for each activation.
Recharge time feeds detergent to maintain detergent concentration as rinse water dilutes the dishmachine. The recharge is triggered after a specified number of racks passes through the machine.

Rinse Pump
The rinse pump will operate whenever the rinse signal is energized. The rinse delay feature will postpone the activation of the rinse pump until the delay time has expired. The rinse limit shuts down the rinse pump after the signal has been present for a selected time. Rinse delay and rinse limit are functional with door machines only.

Sanitizer Pump
A menu selection sets the sanitizer pump to operate with detergent feed, or with rinse feed. The sanitizer pump will run simultaneously with detergent or rinse, whether using probe or probeless mode, rinse delay or rinse limit.

Alarm Volume
The alarm volume can be lowered by changing a setting in the programming menus. The volume can be set low, medium, high or off.

BUTTON FUNCTIONS

• ENTER: Holding the enter button for 2 seconds (approx.) switches between run and program modes. Enter also advances through programming menus.
• SCROLL: The scroll button moves the position of the cursor where number changes are done. The scroll button toggles between choices in menus that have selectable settings.
• UP ( ): Increases numeric values during programming The UP button also acts as rinse prime during operation. To prime the rinse pump, hold down SCROLL and UP at the same time. The UP button also shows the rack count if pressed during operation.
• DOWN ( ): Decreases numeric values during programming. The DOWN button also acts as sanitizer prime during normal operation. To prime the sanitizer pump, hold down SCROLL and DOWN at the same time. The DOWN button also shows the initial charge count if pressed during operation (only when using probeless mode).
• NOTE: To prime detergent (pump or solenoid) hold down the UP and DOWN buttons at the same time.

Alarm Mute
During normal operation, the alarm can be silenced by pressing the ENTER button. The audio alarm will turn off for the alarm delay (if using probe mode) period of time to allow the chemical container to be checked and changed if necessary.

De-Lime Mode
Press ENTER and SCROLL until de-lime mode shows on the display. Chemical injection will be halted while de -lime mode is on but will resume normal operation when turned off. The unit will automatically exit de-lime mode after 10 minutes, or pressing ENTER and SCROLL.

PROGRAMMING

• If you wish to exit the programming mode, or save new settings, and return to normal operation at any time, hold down the ENTER button until you see the UMP DIGITAL display return (about 3 seconds).
• While programming, if no buttons are pressed for approximately 5 minutes, the UMP Digital will automatically return to normal operating mode.
• To change the value of any numeric setting, press SCROLL to select the digit you wish to change, then use to change the number. The digit will flash to show you which one is selected.

When you’re ready to get started, hold down the ENTER button until you see ENTER PASS CODE (about 2 seconds) then continue on the following page…

PROGRAMMING MENUS

• If you chose to use PROBE mode (door or conveyor) you will see the following menu layout…
• If you chose to use PROBELESS mode (door or conveyor) you will see the following menu layout…

PROGRAMMING MENUS CONTINUED

OTHER SCREENS

SYSTEM ALARMS

PARTS DIAGRAM – 200 SERIES

PARTS DIAGRAM – ALL MODELS

WIRING DIAGRAM

DISCLAIMER
Knight LLC 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 LLC. Knight products are not for use in potentially explosive environments. Any use of our equipment in such an environment is at the risk of the user, Knight does not accept any liability in such circumstances.

WARRANTY

For complete product terms and conditions scan the QR code below or enter the following URL into your browser:
http://cfstech.info/t-and-c

KNIGHT LLC is part of the CFS Technologies family of brands.
www.knightequip.com | cfstech.com
8504 MacArthur Dr., North Little Rock, AR 72118 USA • 501-895-2820 | 800-999-2820 General: sales@cfstech.com | Tech. Assist.: techsupport@cfstech.com

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