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Summary of Contents for Knight UniTech Warewash
- Page 1 UniTech Warewash Instruction Manual 0900591 Rev: A (07/04) Page 1 of 24...
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Page 2: Table Of Contents
► Declaration of Conformity ................... 23 Warranty Information ..................24 Knight Locations ....................24 CAUTION: Wear protective clothing and eyewear when dispensing chemicals or other materials. Observe safety handling instructions (MSDS) of chemical mfrs. CAUTION: To avoid severe or fatal shock, always disconnect main power when servicing the unit. -
Page 3: Specifications
Detergent Type Liquid Liquid / Dry / Small Tank Detergent Speed 100% 100% (always runs at full speed) Detergent Concentration 0 — 100 Knight units Alarm Delay 180 sec 0 – 512 sec Sani Pump Runs With Rinse Rinse/Detergent Sani Pump Speed 0%-100% (of full speed) 1 —... -
Page 4: Pre-Installation
PRE-INSTALLATION Check all applicable plumbing and electrical codes before installation. This will help to ensure that the system is installed in safe and suitable manner. A wiring schematic of the dishwasher is useful. This is provided by the dishwasher manufacturer or may be on the machine itself. Plan to mount the unit on a nearby wall. -
Page 5: Electrical
INSTALLATION — ELECTRICAL Review the wiring diagrams on pages 20 - 22 to Rinse Signal familiarize yourself with the wiring connections that In addition to running the rinse pump, the rinse power apply to the UniTech model you have. signal triggers detergent recharge injection if probeless Important note for pre-wired units: These models have mode is selected. - Page 6 Connecting Power/Signals & Probe to UniTech Steps 1 - 6 pertain to typical installations, where final (5) Disconnect the wiring harnesses to gain easier electrical connections must be completed inside the access to the wiring terminal strip. The terminal UniTech dispenser. Disregard steps 1 - 6 for models strip panel can be removed by loosening one screw that are “pre-wired”.
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Page 7: Plumbing
INSTALLATION — PLUMBING Rinse & Sanitizer Plumbing Dry Detergent Plumbing The following installation steps apply for rinse and (1) A powder or solid type feeder (not provided) should sanitizer pumps alike. be used for dispensing dry detergent products. Follow the instructions included with the detergent (1) Install the provided 1/4"... -
Page 8: Operation
OPERATION BUTTON FUNCTIONS • Detergent — Probe Mode ENTER: Holding the enter button for 3 seconds (approx.) switches between run and program modes. With the detergent signal “on”, the conductivity probe Enter also advances through programming menus. senses detergent concentration. When concentration •... -
Page 9: Programming
PROGRAMMING You may find it helpful to read through the programming instructions before getting started. This will better familiarize you with the operation of the UniTech, and will make the actual programming go much quicker. Be aware of the following notes. •... - Page 10 INIT DET CHARGE: 25 KNIGHT UNITS The initial charge feeds detergent to achieve Detergent concentration is set in Knight Units. A chart is provided on page 13 to show the working concentration when the dishmachine is relationship between Knight Units and drops of initially filled with a fresh tank of water.
- Page 11 ‘DOWN’ KEY TO If you wish to clear the rack counter, press the DOWN button. The display RESET RACK COUNT will briefly flash to the rack counter to verify that it was set back to zero, and will then return to the display at left. Press ENTER to continue. DOWN KEY TO RES If you wish to clear the initial charge counter, press the DOWN button.
- Page 12 (does not apply to probeless). If SMALL TANK is selected, the detergent feed rate will be more aggressive when the concentration reading is within 5 Knight units of the setpoint. Additionally, the detergent alarm (delay) function will be by-passed when the concentration reading is within 3 Knight units of the setpoint.
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Page 13: Titration Graphs
UniTech Titration Drops vs. Knight Units Concen Set Point in Knight Units Titration Drops vs. Knight Units Poly. (Titration Drops vs. Knight Units) UniTech Det Concen(ms) vs. Knight Units Knight Units Concen (ms) vs. Knight Units Linear (Concen (ms) vs. Knight Units) -
Page 14: Adding A Sanitizer Pump
“satellite” pump added to the unit. This message will appear briefly, then the system will automatically advance on to the normal display. NOTE: A sanitizer pump is the only satellite pump that can be added to a UniTech warewash unit. Page 14 of 24 0900591 Rev: A (07/04) -
Page 15: Changing The Circuit Board
CHANGING THE CIRCUIT BOARD (1) Ensure that power to the unit is off. (5) Replace with new circuit board and carefully line up the buttons and LED’s with the holes on the cover. (2) Loosen the two screws and swing the cover open. Snap the board into place on the upper and lower mounting tabs. -
Page 16: All Configurations
PARTS DIAGRAM — ALL CONFIGURATIONS Page 16 of 24 0900591 Rev: A (07/04) -
Page 17: Liquid Detergent
PARTS DIAGRAM — LIQUID DETERGENT 0900591 Rev: A (07/04) Page 17 of 24... -
Page 18: Dry Detergent (Brass)
PARTS DIAGRAM — DRY DETERGENT Brass Solenoid Model Page 18 of 24 0900591 Rev: A (07/04) -
Page 19: Dry Detergent (Plastic)
PARTS DIAGRAM — DRY DETERGENT Plastic Solenoid Model 0900591 Rev: A (07/04) Page 19 of 24... -
Page 20: Single Transformer
WIRING DIAGRAM — 1 TRANSFORMER Page 20 of 24 0900591 Rev: A (07/04) -
Page 21: Dual Transformer
WIRING DIAGRAM — 2 TRANSFORMER 0900591 Rev: A (07/04) Page 21 of 24... -
Page 22: European Models
WIRING DIAGRAM — EUROPEAN MODELS Page 22 of 24 0900591 Rev: A (07/04) -
Page 23: Declaration Of Conformity
0900591 Rev: A (07/04) Page 23 of 24... -
Page 24: Warranty Information
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.
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