tall hood door-type variotronic™ high temperature ... · utensil washer designed for cleaning...

Tall Hood Door-Type Variotronic™ High TemperatureSanitizing Utensil Washer (USA Version)

OWNER’S INSTALLATION, OPERATION AND

MAINTENANCE MANUAL

MEIKO • 1349 Heil Quaker Blvd. • La Vergne, TN 37086 • Phone: (615) 399-6600 • (800) 55-MEIKO • Fax: (615) 399-6620

Rev. 9/10

MODEL DV 120.2 T

TABLE OF CONTENTS 3.12 Drain Hose Positioning ............................ 11

3.13 Tabling Attachment .................................. 12

3.14 Final Assembly ........................................ 14

3.15 Priming the Detergent and RinseAdditive Lines .......................................... 14

3.16 Checking for Correct ChemicalConcentration .......................................... 14

4. OPERATION ....................................... 15

4.1 Location and Description of Controls ....... 15

4.2 Startup ..................................................... 16

4.3 Loading .................................................... 16

4.4 Operation ................................................. 17

4.5 Between Cycles ....................................... 17

4.6 Shutdown ................................................ 17

5. CLEANING ......................................... 18

5.1 Daily Cleaning (or as required) ................ 18

5.2 Weekly Cleaning (or as required) ............ 18

5.3 Exterior Cleaning (as required) ................ 19

5.4 Deliming (as required) ............................. 19

6. TROUBLESHOOTING........................ 20

1. INTRODUCTION ................................. 3

1.1 Overview of Equipment ............................. 3

1.2 General Safety Information........................ 3

2. TRANSPORT AND SHIPPING ............ 3

3. INSTALLATION .................................... 4

3.1 Overview of Installation ............................. 4

3.2 Requirements Before Installation .............. 4

3.3 Uncrating, Positioning and Leveling ............. 5

3.4 Accessing the Utility Connections ............. 5

3.5 Main Electrical Supply Connection ............ 6

3.6 Dispensing System Overview .................... 7

3.7 Installing an External Detergent System ... 8

3.8 Installing an External Liquid RinseAid System ................................................ 9

3.9 Wiring External ChemicalDispensing Systems .................................. 9

3.10 Connecting Chemical Containersor Dispensers .......................................... 10

3.11 Fresh Water Supply Connection .............. 11

MEIKO reserves the right to change any specifications without notice at any time.© 2010 MEIKO USA, Inc. All rights reserved.

THE MEIKO MODEL DV 120.2 T UTENSIL WASHER HAS BEEN DESIGNED EXCLUSIVELYFOR THE WASHING OF DISHES, GLASSWARE, CUTLERY, POTS, PANS

AND KITCHEN UTENSILS IN A COMMERCIAL OR INSTITUTIONAL SETTINGAND MUST NOT BE USED FOR ANY OTHER PURPOSE.

MEIKO ACCEPTS NO RESPONSIBILITY FOR DAMAGE TO THE APPLIANCE, SURROUNDINGEQUIPMENT OR ENVIRONMENT THAT IS CAUSED BY INAPPROPRIATE INSTALLATION OR

OPERATION, OR FROM ANY SERVICE THAT IS UNDERTAKEN BY NON-AUTHORIZEDPERSONNEL, OR FROM THE USE OF ANY PARTS EXCEPT THOSE THAT ARE APPROVED BY THE

MANUFACTURER. ANY SUCH INSTALLATION, USE OR SERVICE WILL IMMEDIATELY VOID THEMANUFACTURER’S WARRANTY.

ANY MODIFICATIONS TO THE APPLIANCE THAT ARE PERFORMED WITHOUT THE WRITTENPERMISSION OF MEIKO WILL IMMEDIATELY VOID THE MANUFACTURER’S WARRANTY.

AN ELECTRICAL WIRING DIAGRAM IS LOCATED INSIDE THELOWER-FRONT COMPARTMENT OF THIS MACHINE.

MEIKO • 1349 Heil Quaker Blvd. • La Vergne, TN 37086Phone: (615) 399-6600 • (800) 55-MEIKO • Fax: (615) 399-6620www.meiko.us

SECTION 1 - INTRODUCTION

1 INTRODUCTION

1.1 Overview of Equipment

The MEIKO Model DV 120.2 T is a commercialutensil washer designed for cleaning dishes,glassware, trays, cutlery, pots, pans andkitchen utensils with a minimum of employeeintervention or supervision.

The DV 120.2 T’s Variotronic™ controlsystem allows easy selection of three differentdishwashing cycles. Each cycle has a uniquewash pressure and cycle length, allowing themachine to accommodate different levels ofsoiling on products ranging from fineglassware to heavily soiled pots and pans. Adigital display permits easy monitoring ofoperation.

Other features of the unit that affect operationinclude:

Auto Safe - An internal booster heater is regulatedby the electronic control system to ensure aproper sanitizing final rinse temperature,regardless of the incoming water temperature.

Soft Start - The wash water is pumped at areduced pressure for the first few seconds ofthe wash cycle. This protects the ware frombeing moved or damaged by a sudden burstof pressure.

Pumped Rinse - An internal rinse pumpensures that the final rinse pressure isconstant.

Pumped Drain - Accommodates wall or floordrains.

Aqua Stop - The unit will automatically shutdown if a water leak is detected.

Tall Hood Design - The MEIKO DV 120.2 Tfeatures an extended 27” vertical clearanceto accommodate tall items.

Intelli-Start automatic cycle start - If thedoor is closed with a rack inside the machine,a wash cycle will automatically begin. If a rackis not inside the machine, the door can beclosed freely without starting a wash cycle.

For efficient and SAFE operation, be sure tofollow the installation and operatinginstructions provided in this manual. Inparticular, all safety symbols and notices onthe equipment and in the supplieddocumentation must be followed.

2 TRANSPORT AND SHIPPING

IMPORTANT

• Observe any notices on the cratingmaterial that pertain to shipping.

• Use care when transporting theequipment.

• As you unpack the equipment, check thatall components shown on the shippinginvoice are present and intact. Be sure tocheck for shipping damage. If shippingdamage is present, call MEIKO CustomerService at 1-800-868-3840, providing fulldetails on the customer, serial number andextent of damage present. MEIKO will filea freight claim based on this information.

WARNING!In NO EVENT should a damagedappliance be installed or operated!

1.2 General Safety Information

The following symbols and headings are usedthroughout this manual to indicate possiblehazards to persons or to the equipment. Thesymbols and headings are shown in order ofimportance. The descriptive text following theseheadings is italicized for easy recognition.

WARNING! Possible hazard to per-sons, such as from elec-trical shock, crushing, orhot surfaces.

CAUTION Possible hazard to theutensil washer or toother equipment.

IMPORTANT Vital information or tips forthe installer or operator.

NOTE Information or tips for theinstaller or operator.

IMPORTANTThe Model DV 120.2 T utensil washer hasbeen designed exclusively for the washing ofdishes, glassware, trays, cutlery, pots, pansand kitchen utensils in a commercial orinstitutional setting and must not be used forany other purpose.

3 INSTALLATION

3.1 Overview of Installation

The owner should contract with qualifiedpersonnel to move the appliance to theinstallation location, unpack it, and prepare itfor final utility connections. In most cases,local codes prevent the final utility connectionsfrom being made by any party other than alicensed electrician and/or plumber.

IMPORTANTIt is the responsibility of the owner to ensurethat all aspects of the installation comply withall applicable local and national codes.

IMPORTANTThe appliance’s warranty is not valid until aMEIKO Authorized Service Agent performs aStartup and Demonstration on the appliance.This Demonstration should be scheduled afterinstallation.

Installation of the utensil washer involves thefollowing steps:

• Verifying that the utility connections arepresent, are appropriate for the appliance,and comply with all applicable local andnational codes.

• Unwrapping the appliance (leaving theshipping skid in place for easier move-ment) and checking for shipping damage.

• Moving the appliance to the installationlocation, removing the skid, and levelingthe feet.

• Connecting the electrical supply.

• Installing the chemical dispensing system.

For units equipped with the optionaldispensing system, this involves connectingthe utensil washer’s detergent and rinseadditive tubes to appropriate dispensers.

For units without the optional system, thedispensing system installer should followthe manufacturer’s instructions AND theinstructions in Section 3 of this Manual.

• Connecting the fresh water supply.

• Positioning the drain hose.

• Connecting the machine to tabling.

• Contacting your MEIKO AuthorizedService Agent to perform a Startup andDemonstration on the appliance. This stepalso validates the appliance’s warranty.

3.2 Requirements Before Installation

Before the installer can uncrate and move theappliance to the installation location, thefollowing conditions MUST be met:

• INSTALLATION AREA REQUIREMENTS- The area MUST be frost-free. Freezing

temperatures (32°F/0°C or lower)inhibit proper operation and candamage internal components.

- The area MUST have a firm floorsurface. It is possible to compensate foruneven flooring by adjusting the feet.

- The area should be away fromappliances, furniture or surfaces thatcan be damaged by steam. If this isnot possible, these items should beprotected from the small quantities ofsteam that are released during normaloperation of the utensil washer.

• UTILTITY CONNECTION REQUIREMENTS- Connections must be present and

ready for hookup to the appliance. Allutility supplies must comply with theelectrical information labels, with theinformation on the data plate, and withall applicable local and national codes.

- Electrical leads and the water supplyhose (supplied by the customer) mustbe present.

- For units without the optionaldispensing system, external detergentand rinse additive pumps (if used)should be installed according to themanufacturer’s instructions.

- For units with the optional dispensingsystem, appropriate dispensers orcontainers should be installed andready for connection to the appliance.

• GENERAL REQUIREMENTSAuthorized personnel should be availableto perform the actual utility connections.

SECTION 3 - INSTALLATION

SELECT

NO

RMAL

CYC

LESELEC

TEXTEN

DED

CYC

LESELEC

THEAVYCYC

LE

PO

WER

ON

PO

WER

ON

PO

WER

ON

PO

WER

ON

STAR

T

STAR

T

STAR

T

STAR

TCYC

LE

CYC

LE

CYC

LE

CYC

LED

RAIN

DR

AIN

DR

AIN

DR

AIN

or

or

or

or

OFF

OFF

OFF

OFF

PO

WER

PO

WER

PO

WER

PO

WER

MIN. 180°F / 82°C

MIN. 150°F / 66°C

WASH TANK TEM

P

FINALRINSE TEM

P

Press "STOP" then

"START" to drain

3.3 Uncrating, Positioning and Leveling

1. Remove all shipping and packaging materialfrom the appliance, including supports andwrappings. Leave the shipping skid in place atthis time to allow for easier movement to theinstallation location.

2. Check for shipping damage as described inSection 2, “Transport and Shipping.” If damageis present, call MEIKO Customer Service at1-800-868-3840, providing full details on thecustomer, serial number and extent of damagepresent. MEIKO will file a freight claim basedon this information.

3. Move the appliance to the installation area andremove the skid. Use caution to avoid damagingthe appliance or any of its components.

4. Using a spirit level, check that the appliance islevel in both directions (front-to-back AND side-to-side). If necessary, level the appliance byrotating the bottom section of each foot.

CAUTIONThe utensil washer MUST be level for properoperation.

3.4 Accessing the Utility Connections

Water supply and drain connections are locatedat the lower rear of the utensil washer. The electricalsupply enters through a strain relief at the lowerrear, but the terminal blocks are accessed fromthe front of the machine.

To remove the lower front panel:

1. Remove AND RETAIN the two screws on thebottom edge of the lower front panel. SeeFigure 3-1.

2. Slide the panel down and away from the utensilwasher to remove it. As you pull the panel awayfrom the utensil washer, disconnect the ribboncable for the MIKE 2 controller to avoid damage.

3. Remove the screw that holds the electrical boxin place, as shown in Figure 3-2. Swing the boxdown as shown in Figure 3-3. The mainelectrical supply terminal block is on the leftside of the machine. The chemical dispenserterminal block (if used) is underneath the washtank on the right side of the machine.

Remove2 screws onbottom edge

Figure 3-1


Removescrew

As panel isremoved, disconnect

ribbon cable toMIKE 2 controller

Figure 3-2

Swingelectricalbox down

Mainelectrical

supplyterminal

block

Figure 3-3

Chemicaldispenserterminalblock (ifused)

Electricalbox

3.5 Main Electrical Supply Connection

WARNING!Check that the circuit breaker/fuseddisconnect is in the OFF position andthat the unit is switched off beforemaking the electrical utility connections.

IMPORTANTIn some cases, local codes dictate thatelectrical supply connections be made onlyby a certified professional.

1. Check that the incoming power leads areof sufficient rating for the appliance’scurrent draw. Amperage and minimumsupply wire specifications are shown onthe serial plate and on the electricalinformation label.


2. Check that the incoming power leads arelong enough to permit the unit to berepositioned for servicing.

3. Locate the strain relief for the electricalsupply wiring at the lower rear of themachine (Figure 3-4). Thread theincoming supply leads through the strainrelief and to the main electrical supplyterminal block at the front of the machine(Figure 3-5).

4. Refer to Figure 3-6 and the electrical wiringdiagram. Connect the power supply andground leads as indicated.

5. Adjust the strain relief to fasten the wiringin place. You should leave enough slackin the wiring to prevent stress on theterminal connections.

208-230V, 60 Hz, 1 Phase:

L1 and L2 “hot” (line)

yel/grn = ground

Figure 3-6: Main electrical supply connections

208-230V, 60Hz, 3 Phase

or

460V, 60 Hz, 3 Phase

L1, L2 and L3 “hot” (line)

yel/grn = ground

L2L1GND L2L1

GNDL3

Figure 3-5: Routing the electrical supply

Mainelectrical

supplyterminal

block

Electricalsupply

strain relief

Lower rearof machine

Lower frontof machine

Figure 3-4: Utility connections

Liquid detergent andrinse additive supplylines (if so equipped)

Fresh waterconnection

Drainhose

Duplicate panel

is on opposite

side of machine.

REMOVE

ACCESS

PANEL TO

ROUTE

DETERGENT

LINE.


Figure 3-7: Chemical connections

Dummy plugfor detergentconcentration

probe

Liquid rinseadditiveinjection

(blue)

Liquid detergent injection(clear) - only present onmachines with internalchemical pump option

Mainelectrical

supplyterminal

blockChemicaldispenserterminal

block

Dummyplugs fordetergentinjection

Accesspanel forexternalchemicaldispenserinjection

(either side)

3.6 Dispensing system overview

The DV 120.2 T is designed for usewith a liquid rinse aid, and eithersolid or liquid detergents.

Units equipped with optional liquidinternal detergent and rinse aidpumps have two tubes exiting themachine at the lower rear. Thesetubes can simply be attached todetergent and rinse aid containers.See Figure 3-7.

Units that are NOT equipped withthe internal pumps have:

• A blue rinse aid line exiting themachine at the lower rear.

• Two dummy plugs coveringholes in the back of the washtank that can be used for de-tergent injection. The plugs areaccessed by removable panelson the sides of the machine.Either plug can be used.

• A hole in the bottom of the washtank for the installation of a de-tergent concentration probe.

A dispensing system terminal block(shown in Figure 3-7) providescontacts for two line voltagerelays. These relays, when closed,provide a “window” for externalpump systems to activate.

• The rinse aid pump relay closesfor approximately 16.5 secondswhenever the booster tankrefills (once per cycle).

• The detergent pump relaycloses whenever the washpump is in operation.

Activation of the pumps can becontrolled as follows:

• Solid detergent systems shoulduse a detergent concentrationprobe installed in the wash tankto activate the external pump.A dummy plug at the bottom ofthe wash tank provides aninstallation location for the probe.

• Liquid detergent systems can use EITHER adetergent concentration probe, OR a timer system.A detergent concentration probe is HIGHLYRECOMMENDED.

• Liquid rinse aid systems should be controlled usinga timer system.

Duplicate panel

is on opposite

side of machine.

REMOVE

ACCESS

PANEL TO

ROUTE

DETERGENT

LINE.


Figure 3-9: External detergent system

Remove large plug toroute solid detergent

supply lineOR

Remove small plug toroute liquid detergent

supply line

Remove dummyplug to attach

detergent supply line

Accesspanel forexternalchemicaldispenserinjection

Remove dummy plug toinstall detergent

concentration probe(if using a probe)

CAUTIONIf the unit will NOT use one or both ofthe chemical supply tubes, cut theunused tube(s) close to the pointwhere it exits the machine’s exteriorpanel and seal it using the suppliedplug and wire clamp. See Figure 3-8.

For units equipped with the optionalinternal chemical dispensing system,skip ahead to Section 3.10, “ConnectingChemical Containers or Dispensers.”

3.7 Installing an ExternalDetergent System

To install a detergent dispensingsystem:

1. Remove the detergent plug accesspanel on either side of the machine.Remove the matching dummy plugfrom the back of the wash tank.See Figure 3-9.

2. Route the detergent supply linethrough one of the two holes in theaccess panel, through the sidepanel, and into the wash tank. Forsolid systems, use the large holein the access panel. For liquidsystems, use the smaller hole.

3. Fasten the line in place and sealthe connection.

4. Replace the access panel.

5. If a detergent concentration probewill be used, access the bottom ofthe tank by lifting up the front of therack rail assembly and latching itonto the back wall as shown inFigure 3-9. Lift out the scrap screens.Then, remove the dummy plug inthe bottom of the wash tank, installthe detergent concentration probeand seal the connection. Replacethe scrap screens and lower therack rail assembly back into place.

6. Check that the pump is correctlyinstalled according to the manu-facturer’s instructions.

Figure 3-8: Sealing unused chemical tubes (ifnot using a liquid detergent or rinse additive)

Cuttubing

Seal with plugand wire clamp

To access bottomof tank, lift up front

of rack railassembly and latch

onto back wall


3.8 Installing an External Liquid Rinse AidSystem

A pre-plumbed, blue 1/4” ID tube at the lowerrear of the unit serves as the connection pointfor the rinse aid supply. See Figure 3-10.

If a liquid rinse aid system will NOT be used,cut the tubing near the rear panel. Then, closeand seal it with the plug and wire clamp thatare supplied on the end of the tube. SeeFigure 3-8.

To install a liquid rinse aid dispensing system:

1. Route the rinse aid supply line to the blue1/4” ID tube at the lower rear of themachine.

2. Fasten the line in place and seal theconnection.

3. Check that the pump is correctly installedaccording to the manufacturer ’sinstructions.

3.9 Wiring External Chemical DispensingSystems

IMPORTANTSome local codes dictate that electricalconnections be made only by a certifiedprofessional.

1. Locate the chemical dispenser terminalblock. See Figure 3-3.

2. Thread the incoming leads from thechemical pumps through the extra strainreliefs (at the lower rear of machine) andto the chemical dispenser terminal block.

3. Connect the wires as shown in Figure3-11. Note that the terminal block suppliesLINE VOLTAGE SIGNALS. An additionaltransformer may be required dependingon the supply requirements of the externalpumps.

4. Adjust the strain reliefs to fasten the wiringin place. Leave enough slack in the wiringto prevent stress on the terminalconnections. Bundle the wires togetherusing wire ties to prevent them fromtangling when repositioning the appliance.

Figure 3-10: Liquid rinse additive system

Liquid rinseadditiveinjection

(blue)

Figure 3-11: Dispenser pump wiring

3.10 Connecting Chemical Containers orDispensers (if so equipped)

This section applies to units with eitherinternal or external chemical dispensingpumps.

1. Check that the rinse additive anddetergent are compatible with the unit. Inparticular, a commercial (not a domestic)detergent MUST be used.

2 Check that the containers/dispensers arecorrectly installed according to themanufacturer’s instructions.

3. If the utensil washer is equipped withfactory internal chemical dispensingpumps, two strainer assemblies for thechemical containers are also included.See Figure 3-12. These strainers shouldbe assembled onto the lids for thedetergent and rinse additive containers.

Strainertube

Lid for detergentor rinse additive

container

Wireclamp

Figure 3-12: Strainer assembly

4. For liquid detergent systems, locate theCLEAR liquid detergent tube. Connect thetubing to the detergent container.

For solid detergent systems, connect thedetergent supply line according to themanufacturer’s instructions.

5. Locate the BLUE liquid rinse additive tubeat the lower rear of the unit. Connect thetubing to the rinse additive container.

6. If using the strainers shown in Figure3-12, be sure to use the supplied wireclamps to fasten the chemical supplytubes securely. MEIKO STRONGLYRECOMMENDS the use of a sealingcompound on these connections toprevent leakage.


3.11 Fresh Water Supply Connection

CAUTIONBefore connecting the water supply hose, theline MUST be flushed clean of all debris,including (but not limited to) pipe sealant,metal particles, solder, etc. This debris candamage the appliance.

IMPORTANTIn some cases, local codes dictate that watersupply connections be made only by acertified professional.

1. Check that iron or other metal particlescannot contaminate the fresh watersupplied to the utensil washer.

2. Check that the incoming water pressureis within the acceptable range for theappliance (8.7-72.5 psi, 0.6-5.0 bars). Itmay be necessary to increase the pres-sure (with a booster pump) or to reducethe pressure (with a reducing valve).

3. Check the incoming water temperature.MEIKO recommends a water temperatureof 140°F/60°C for optimum operation,although if necessary the appliance willsanitize correctly using water at anytemperature. Colder water will result in alonger preheat time (during initial startup)and may extend the cycle time to allowthe final rinse water to heat to 180°F/82°C.

4. Check the incoming water hardness.MEIKO recommends a hardness of 4-6grains per U.S. gallon.

5. Because the water inlet incorporates astainless steel dirt trap, an additional trapis unnecessary unless required by local,national or international codes.

6. The utensil washer includes a water supplyline that ends in an enclosure containingthe water inlet valve and the Aqua-Stopshutoff valve (see Figure 3-13). Connectthe customer-supplied water line to thefitting on the end of this enclosure. Use asealing compound on the threads to ensurethat no leaks are present in the connection.

7. Check that the water line is long enoughto permit the unit to be repositioned forservicing.

3.12 Drain Hose Positioning

1. Check that the end of the drain hose willempty into a drain with a minimumdiameter of 1-1/2”/38mm.

2. Check the type of drain that will be used.Because the DV 120.2 T uses a pumped drain,either a floor or wall drain is acceptable.

CAUTIONNo portion of a wall drain system may behigher than 24” (610m) A.F.F. to ensurethat the drain pump is operating withinrated specifications. See Figure 3-14.

3. Route the drain hose to the drain. In somecases, a grease trap (supplied by others)must be fitted into the waste water line. Ifthis trap is required for your installation,check that it is present.

Lower rearof machine

Figure 3-13: Fresh water supply anddrain connections

Fresh waterconnection

Drainhose

Figure 3-14:Drain line

vertical riselimitations

No portion ofdrain system

may behigher than

24” (610mm)A.F.F.


Duplicate panel

is on opposite

side of machine.

REMOVE

ACCESS

PANEL TO

ROUTE

DETERGENT

LINE.

SELECT

NO

RMAL

CYC

LESELEC

TEXTEN

DED

CYC

LESELEC

THEAVYCYC

LE

PO

WER

ON

PO

WER

ON

PO

WER

ON

PO

WER

ON

STAR

T

STAR

T

STAR

T

STAR

TCYC

LE

CYC

LE

CYC

LE

CYC

LED

RAIN

DR

AIN

DR

AIN

DR

AIN

or

or

or

or

OFF

OFF

OFF

OFF

PO

WER

PO

WER

PO

WER

PO

WER

MIN. 180°F / 82°C

MIN. 150°F / 66°C

WASH TANK TEM

P

FINALRINSE TEM

P

Press "STOP" then

"START" to drain

Duplicate panel

is on opposite

side of machine.

REMOVE

ACCESS

PANEL TO

ROUTE

DETERGENT

LINE.

SELECT

EXTEND

EDC

YCLE

SELECTHEAVYC

YCLE S

TART

STAR

T

STAR

T

STAR

TCYC

LE

CYC

LE

CYC

LE

CYC

LED

RAIN

DR

AIN

DR

AIN

DR

AIN

or

or

or

or

OFF

OFF

OFF

OFF

PO

WER

PO

WER

PO

WER

PO

WER

MIN. 180°F / 82°C

MIN. 150°F / 66°C

FINALRINSE TEM

P

Press "STOP" then

"START" to drain

3.13 Tabling Attachment

The DV 120.2 T can be positionedin either of two tablingconfigurations; straight through, orin a corner installation. See Figure3-15.

1. IF the machine will bepositioned in a corner, performthe following steps beforeattaching the tables:

• Position the machine so thatthe LEFT REAR corner ofthe machine faces thecorner of the wall, as shownin Figure 3-15. For cornerinstallations, this placementis necessary to ensure thatthe control panel can bereached by the operator.

• Remove the flat splashguard/rack guides from theFRONT and LEFT SIDE ofthe machine. Reverse theirpositions (so the guide withthe raised edge is on the leftside) and reassemble theminto place. See Figure 3-15.The raised rack guideprevents racks from beingpushed out the open leftside of the machine.

Each splash guard/rackguide piece is held in placeby three nuts. To moreeasily access the nuts, youcan lift the front of the rackrail assembly, then swingthe assembly up.

Be sure to install the pieceswith the splash guard (largeangled side) DOWN asshown in Figure 3-15.

Figure 3-15: Straight-through andcorner tabling configurations

Straight-through


For a corner installation ONLY, remove the flat splash guard/rack guide piecesfrom the FRONT and LEFT SIDE positions (fasted with 3 nuts each), then

reassemble them in the opposite positions.

IMPORTANT:Left rear corner of

machine MUST facecorner of wall to ensureaccess to control panel.

Cornerinstallation

Before

After

Controlpanel

2. Position the machine and tables asfollows:

• Check that the centerline of the open-ing at the end of each table is alignedwith the centerline of the rack track ofthe machine. See Figure 3-16.

• Check that the surface height of eachtable matches the height of the racktrack of the machine, to ensure asmooth transition. The standard tablesurface height is 34” (864mm).

• Check that the machine is level.

The height of the machine, and of mosttables, can be adjusted by rotating the feetat the end of the legs.

CAUTIONAfter adjusting the height of the machine,always check that it is level to ensureproper operation.

3. Position each table lip-in at the machine,as shown in Figure 3-17. Be sure to seatthe lip-in against the inner, vertical mount-ing surface.

CAUTIONIf the table lip-in extends beyond thevertical mounting surface, and down to theangled face of the inside of the machine,it will not seat properly. The lip-in shouldbe no more than 3/4” (19mm) in depthto ensure correct mounting to themachine.

4. After the tables have been positionedcorrectly, secure them to the machineusing silicone sealant.

Figure 3-16: Aligning the table centerlines with the dishmachine

Centerline ofrack track

Centerline oftable opening

Centerline ofrack track

Centerline oftable opening

Straight-through installation

Cornerinstallation

20-1/4”(514mm)

recommended

Turndownlip-in

flange3/4”

(19mm)max.

Lip-in flange MUSTbe flush against the

vertical mountingsurface

Lip-in flange MUSTNOT extend to theangled face inside

the machine

Figure 3-17: Tabling attachment



3.15 Priming the Detergent and RinseAdditive Lines

For machines equipped with externalchemical dispensing systems, prime thedetergent and rinse additive lines accordingto the manufacturer’s instructions.

For machines equipped with factory internalchemical dispensing systems, prime the linesas follows:

1. Press and hold the STOP/OFF (O) keyuntil appears in thedisplay (about 4-5 seconds).

2. Press the START/DRAIN ( )key 5 timesuntil appears in the display.

3. Press the key. willappear in the display.

4. Press the START/DRAIN ( )key to startpriming the liquid rinse additive lines. Atimer will count down the time remaining.By default, the system will prime for 180seconds.

5. When the display returns to, press the key so that appears in the display.

6. Press the START/DRAIN ( )key to startpriming the liquid detergent lines. A timerwill count down the time remaining. By default,the system will prime for 30 seconds.

7. When the display returns to, press the STOP/OFF

(O) key to shut off the utensil washer.

3.16 Checking for Correct ChemicalConcentration

Machines equipped with external chemicaldispensing systems will have normal settingsrecommended by the manufacturer.

For machines equipped with factory internalchemical dispensing systems, the normalsettings for chemical injection are:

• Detergent - 0.256 oz. per gallon of washwater (2.0 ml per liter).

• Rinse additive - 0.0256 oz. per gallon ofrinse water (0.2 ml per liter).

To check if the normal settings are correct foryour chemicals, RUN THREE EMPTYLOADS to completely cycle the water supplyand obtain accurate test results. This will onlytake a few minutes. Then, run a sample loadwith soiled ware and examine the results.

• If the detergent setting is too low, the warewill not be adequately cleaned. In somecases, this can be corrected by simplyselecting a longer cycle time, but this maynot be possible as changing the selectedcycle will affect the wash pressure as wellas the length. So, some heavy soiling mayneed multiple wash cycles for completecleaning. But the detergent concentrationmay also need to be adjusted.

• If the rinse additive setting is too low, spot-ting or streaking may occur on the ware.

• If too much of either chemical is added,the extra chemicals will be wasted. Thisis often difficult to detect except bydetermining how long your chemicalsupplies last. If the chemicals are beingexhausted quickly, you may need to havethe chemical concentration adjusted.

IN ALL CASES, ANY ADJUSTMENTS OFTHE FACTORY CHEMICAL INJECTIONSETTINGS ARE TO BE PERFORMED

ONLY BY A MEIKO AUTHORIZEDSERVICE AGENT. CHANGES BY

UNAUTHORIZED PERSONNEL WILLVOID YOUR WARRANTY.

If you need to contact your AuthorizedService Agency, please contact MEIKOTechnical Support at 1-800-868-3840.

3.14 Final Assembly

1. Check and tighten all electrical terminalscrews.

2. Replace all panels onto the utensil washer.When replacing the lower front panel, besure to reconnect the ribbon cable for theMIKE 2 controller.

3. Switch the circuit breaker/fuseddisconnect to the ON position. Be sure toprime the detergent pumps and check forcorrect chemical concentration beforeoperating the unit.

SECTION 4 - OPERATION

4 OPERATION

4.1 Location and Description of Controls

The utensil washer controls are on the keypad on the front panel. See Figure 4-1.

Figure 4-1: Utensil washer controls

A

A, B, C - POWER/VARIOTRONIC CYCLESELECT keys

These keys turn the utensil washer on. Eachkey selects a different wash pressure andcycle length to accommodate differing ware:

Low: Approx. 7 PSI, medium cyclelength, for fine china and glassware

Normal: Approx. 10 PSI, normal(short) cycle length, for dishes andregular glassware

High: Approx. 15 PSI, extended cyclelength, for utensils, pots and pans

The keys may also be pressed betweencycles to choose a different cycle.

D - START/DRAIN key

If pressed when the unit is readyto operate, this key starts theoperating cycle. If the utensilwasher has been switched off(for instance, at the end of theshift), this key empties the tank.

The machine also includes a positive-actiondoor handle that allows the currently-selectedwash cycle to activate simply by pressingdown on the handle (if the door is closed).

B C D

E

F G

E - STOP/OFF key

If pressed when the unit is inoperation, this key ends thecycle immediately. If the unit isNOT in operation, this key willswitch the unit off.

F - WASH TANK TEMPdisplay

Shows the currenttemperature of the water inthe wash tank.

G - FINAL RINSE TEMPdisplay

Shows the currenttemperature of the final

rinse water. The utensil washer cannot begina final rinse cycle until the rinse water hasheated to the proper temperature. The washcycle will automatically extend (if necessary)until the proper rinse temperature is reached.

INTELLI-START (not shown)

Any time that the door is closed and a rack isinside the machine, the selected wash cyclewill automatically begin.


4.2 Startup

The light above the selected POWER/VARIOTRONIC CYCLE SELECTkey will begin to flash, showing thatthe tank is filling and the water isheating to the correct temperature.

The time required for filling and preheatingwill vary based on the temperature of theincoming water supply. For incoming waterat 140°F/60°C, the machine may need up to15 minutes to fill and heat to the correct washtemperature. The default wash temperatureis several degrees above 150°F/66°C forefficient operation.

Press any of the three POWER/VARIOTRONIC CYCLE SELECT keys to turnon the utensil washer.

Low for fine china and glassware

Normal for dishes and regularglassware

High for pots, pans and utensils

If desired, you can watch the WASH TANKTEMPERATURE and FINAL RINSE TEM-PERATURE displays as they rise. This givesan indication of the amount of time left be-fore the utensil washer can be operated.

(constant) When the tank is full and the waterhas been heated to the correcttemperature, the light above theselected POWER/VARIOTRONICCYCLE SELECT key will stop flashing.The machine is now ready for operation.

Check the level of the external detergent andrinse additive dispensers. If necessary,replace or refill the dispensers.

(flashing)

OPTIONAL

4.3 Loading

The loading guidelines shown here will leadto faster, more efficient cleaning of your ware.

Load hollow or concave dishware (glasses,large bowls, etc.) upside-down and at anangle. This allows water to drain more quickly,preventing stains.

Load pots,deep bowls ordeep panswith the openside facingdown.

Load plates, soup bowls, etc. at an angle withthe inside face pointing up. Ensure that watercannot pool in the bottom of bowls.

Position bowls toallow water to drain

For greater efficiency in loading cutlery, youcan use cutlery holders. When loading them:

• Do not overload the holders.

• Always load knives, forks andspoons with the handleDOWN.

• Do not load identical wareinto any given holder.Instead, load an assortmentof knives, forks and spoonsinto each holder. Identicalware is often too closelyspaced for effective cleaning.

WARNING!If the door is opened suddenly, hot

water can spray out of the utensil washer. Toprevent this from happening:

• Open the door slowly until the utensilwasher stops operating, OR

• Press the STOP/OFF (O) key to stop thewash/rinse cycle before opening the door.

If desired, the cycle can be stopped at anytime by pressing the STOP/OFF (O) key ORby opening the door.


4.4 Operation

The MEIKO DV 120.2 T utensil washer isequipped with the Intelli-Start feature. Anytime that the door is closed when a rack isinside the machine, the selected wash cyclewill automatically begin.

If the wash cycle is interrupted,or to manually start a cycle, youcan also press the START/DRAIN key to manually beginthe selected cycle.

A wash cycle cannot begin unless the lightabove the selected POWER/VARIOTRONICCYCLE SELECT key has stopped flashing.

The utensil washer will begin a wash and rinsecycle. The Soft Start feature pumps the waterthrough the arms slowly for the first fewseconds of the cycle to protect the ware. Aftera few seconds, full pressure will engage.

The time of the total cycle will be at least aslong as the times shown on the machine’s serialplate. When using a cold water supply, themachine will automatically extend the washcycle if necessary until the final rinse watercan be heated to the correct temperature.

OPTIONAL

4.5 Between Cycles

Between cycles, leave the door of the machineclosed. If the door is left open, the wash tankwater will cool. This will activate the tank heaters,consuming extra energy, and may lengthen therecovery time when another cycle is started.If necessary, you can choose a different cyclebetween cycles by pressing any of the POWER/VARIOTRONIC CYCLE SELECT keys.When you are ready to start a new cycle, referto Section 4.3, “Loading.”

When the cycle has completed, the utensilwasher will stop operating and sound a three-stage beeping tone. After the tone hassounded, you may open the door and unloadthe ware. Note that steam escapes when thedoor is opened; this is normal.

WARNING!Use caution when handling hot ware.

4.6 Shutdown

At the end of the shift, press theSTOP/OFF key.

Press the START/DRAIN key toempty the tank.

After the water has drained, the utensil washerwill enter a self-cleaning mode. The interior willbe sprayed with hot, fresh water as the boostertank empties. When this is completed, the drainwill “pulse” several times to empty the waterand the utensil washer will automatically shut off.

WARNING!DO NOT open the door of the utensilwasher during the self-cleaningprocess! The process will beinterrupted and hot water may sprayout of the machine.

After the utensl washer has finished its self-cleaning cycle, open the door. Remove anyfood particles, scraps or bones from the scrapscreens. MEIKO recommends that the doorof the machine be left open overnight to allowit to air thoroughly.

Do not stack items in the utensil washer.Stacked items require longer or multiplecleaning cycles because the wash watercannot reach the food residue as effectively.It is more efficient to load the machine withfewer items and run multiple cycles.

SECTION 5 - CLEANING

5 CLEANING

WARNING!Before ANY cleaning, check that the circuitbreaker/fused disconnect is in the OFFposition and that the unit is switched off.

IMPORTANTThe headings Daily Cleaning and WeeklyCleaning in this section are generalrecommendations based on typical soiling.Because of the large quantity of food soilingpresent on many pots and pans, it may benecessary to clean the machine more oftenand more extensively than a traditionaldishwasher. Extensive food soil depositsinside the machine work against optimalperformance. Some items may not becleaned as effectively, resulting in the needfor either a longer cycle or repeat washing. Inaddition, heavy soiling in the wash waterincreases detergent consumption.5.1 Daily Cleaning (or as required)1. The utensil washer automatically enters

a self-cleaning cycle when it is turned off.The interior will be sprayed with hot, freshwater as the booster tank empties.

2. AFTER this cycle ends and the machineshuts down, open the door.

3. Lift up the front of the rack rail assemblyand latch it onto the back wall. See Figure 5-1.

4. Remove any food particles, scraps orbones from the scrap screens.

5. Lift out the scrap screens and clean themthoroughly using a brush and warm water.

6. Lift out the Active Plus filter. Clean it thor-oughly using a brush and warm water. Besure to use care to avoid damaging thescreen on the Active Plus filter.

7. MEIKO recommends that the door of theutensil washer be left open overnight to al-low it to air thoroughly.

8. Reassemble all components into the ma-chine before operation. Note the following:- The Active Plus filter MUST be rein-

stalled with the slotted end facingDOWN. See Figure 5-1.

- The scrap screens MUST be reinstalledso that the round grate lines up withthe Active Plus filter. See Figure 5-1.

- Lower the rack rail assembly into place.

5.2 Weekly Cleaning (or as required)

Once per week, or as required, perform thefollowing steps:

1. Open the door. Remove and clean thescrap screens and Active Plus filter as de-scribed in Section 5.1, “Daily Cleaning.”

2. Remove and disassemble the arms asshown in Figures 5-2 and 5-3. Clean thearms with a brush and warm running water.

3. Reassemble all components into theutensil washer. Note the following:- The Active Plus filter MUST be rein-

stalled with the slotted end facingDOWN. See Figure 5-1.

- The scrap screens MUST be reinstalledso that the round grate lines up withthe Active Plus filter. See Figure 5-1.

- The top and bottom wash and rinsearms are identical and interchange-able.

Figure 5-1: Screen and filter removal

Scrapscreens (2)

ActivePlusfilter

Round grate isaligned with

Active Plus filter

Slottedend faces

DOWN

Lift up front of rackrail assembly and

latch onto back wallto access screens,

filter and arms

SECTION 5 - CLEANING

Figure 5-2: Wash andrinse arm removal

Retainingscrews

Steelwasher

Wash arm(top)

Bearingring (2)

Bearingring

Wash armdisassembly (x2)

Rinse armdisassembly (x2)

Wash arm(bottom)

Figure 5-3: Wash andrinse arm disassembly

Steelwasher

5.3 Exterior cleaning (as required)

CAUTIONWhen cleaning the exterior of the utensilwasher, be sure to follow these guidelines:

• MEIKO strongly recommends usingdetergent when cleaning the exterior ofthe unit, instead of commercial stainlesssteel cleaners. These cleaners candamage the surface of the control panel.

• Never use abrasive cleaners or pads whencleaning the exterior of the utensil washer.These can scratch the surface of the unit.

WARNING!Ensure that detergents and stainlesssteel cleaners are kept out of theinterior of the machine. If the interiorof the unit requires cleaning, refer tothe deliming procedures (Section 5.4).

5.4 Deliming (as required)

Lime scale deposits will occur over time onthe interior of the utensil washer if it is operatedusing a hard water supply. MEIKO recommendsa hardness of 4-6 grains per U.S. gallon.

A deliming or de-scaling process can be usedto remove these deposits, as well as anyaccumulated food residue.

CAUTIONWhen deliming the interior, be sure to followthese guidelines:

• Use deliming agents designed for use withcommercial dishwashers.

• Follow the instructions for the delimingagent that is used.

After the deliming process:

1. Run the utensil washer through 3-6 regularcycles without a load to rinse and sanitizethe interior thoroughly.

2. Inspect the interior for any remainingdeliming agent residue. If residue ispresent, remove it using a soft cloth andhot water; then, run the machine throughone final empty cycle.

3. Press the STOP/OFF (O) key; then, pressthe START/DRAIN key. This will empty thetank, ensuring that any deliming agent stillin the tank will be flushed out of themachine.

WARNING!Ensure that ALL residue of thedeliming agent is removed. Residuefrom the agent can:- Pose a health hazard;- Damage seals and plastic com-

ponents inside the utensil washer.

Rinse arm(top)

Rinse arm(bottom)

SECTION 6 - TROUBLESHOOTING

6 TROUBLESHOOTING

If the utensil washer encounters a problem, an Info Code or Error Code will usually appear inthe display. If you use this troubleshooting guide to resolve simple problems, you can oftenreturn the appliance to operation faster than by placing a service call.

Display Shows Problem Action

Tank is not heating ORfresh water is notentering unit

Check that the water hose is correctlyattached and is free of “kinks” orpinching. Also check that the watersupply is turned on.

Door is not closed ORdoor switch is defective

Check that the door is completelyclosed.

Water leakage onto floorpan

Check that the water line to the unit isnot leaking, and that the drain hoseempties correctly into the drain.

Correct water level wasnot reached during initialfilling


Filling process takes toolong


Info Codes appear for minor difficulties. Error codes appear for more complex issues. Aftercorrecting the condition, if the unit does not return to normal operation automatically, pressthe START/DRAIN ( )key or the STOP/OFF (O) key to clear the message.

You should contact your MEIKO Authorized Service Agent IF:

• The utensil washer encounters a problem but does not displayan error code, OR

• An error code appears that is not shown here, OR

• The listed action fails to correct the problem.

An Authorized Service Agency Listing was supplied with yourutensil washer. If you do not have the listing, call 1-800-868-3840for assistance.

Notes

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If you need service...

MEIKO utensil washers are designed for solid reliability as much as foroutstanding ware-cleaning ability. With proper care, your utensil washershould provide years of trouble-free operation.

If service is necessary, contact your local MEIKO Authorized ServiceAgent. With factory training, OEM parts and direct support from thefactory, MEIKO’s nationwide service network is highly qualified to quicklyrestore your utensil washer to regular operation.

An Authorized Service Agency Listing is supplied with this Manual.If you do not have the listing, call 1-800-868-3840 for assistance.

MEIKO1349 Heil Quaker Blvd.La Vergne, TN 37086Phone: (615) 399-6600(800) 55-MEIKOFax: (615) 399-6620

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