Moyer Diebel 401-HT Installation & Operation Manual

Category
Dishwashers
Type
Installation & Operation Manual

This manual is also suitable for

Installation/Operation Manual with Service Replacement Parts
Issue Date: 10.4.10
Manual P/N 0512240 rev. I
For machines beginning with S/N W11948 and above
Dishwasher serial no.
www.moyerdiebellimited.com
Undercounter
Dishwashers
(with pumped nal rinse)
Models:
201HT High temperature w/booster
201HTN High temperature w/o booster
201LT Low temperature chemical sanitizing
401HT High temperature w/booster
401HTN High temperature w/o booster
501HT High temperature w/booster
501HTN High temperature w/o booster
501LT Low temperature chemical sanitizing
Printed in USA
2674 N. Service Road, Jordan Station
Ontario, Canada L0R 1S0
905/562-4195 Fax: 905/562-4618
Toll-free: 800.263.5798
3765 Champion Boulevard
Winston-Salem, NC 27105
336/661-1992 Fax: 336/661-1660
Toll-free: 800.858.4477
401HT
201HT
501HT
The dishwasher data plate
is located on the left front corner
of the front access panel.
COPYRIGHT © 2010 All rights reserved Printed in the USA
For future reference, record your dishwasher information in the box below.
Model Number__________________________ Serial Number_______________________
Voltage________________Hertz_____________ Phase__________________
Service Service Agent __________________________________ Tel:______________________
Moyer Diebel Parts Distributor _________________________________ Tel:______________________
ATTENTION:
The dishwasher model no., serial no., voltage, Hz and
phase are needed to identify your machine.
Please have this information on-hand
if you call for service assistance.
Toll-free: 800/ 263-5798
Tel: 905/ 562-4195
Fax: 905/ 562-4618
Toll-free: 800/ 858-4477
Tel: 336/661-1992
Fax: 336/ 661-1660
National Service Department -USA
National Service Department - Canada
The USGBC and the CaGBC Member Logos are trademarks owned by the U.S. Green Building Council and The Canadian Green
Building Council, respectively, and are used by permission. The logos signify only that Moyer Diebel is a USGBC member and a
CaGBC member; USGBC and CaGBC do not review, certify nor endorse the products or services offered by its members.
NO POSTAGE
NECESSARY
IF MAILED
IN THE
UNITED STATES
BUSINESS REPLY MAIL
FIRST-CLASS MAIL PERMIT NO. 2101 WINSTON-SALEM, NC
POSTAGE WILL BE PAID BY ADDRESSEE
MOYER DIEBEL
PO BOX 4183
WINSTON-SALEM, NC 27119-0981
ATTENTION:
Complete the back of the POSTAGE PAID WARRANTY CARD below, then cut along
the dashed lines and mail immediately to make sure that your machine warranty is validated.
USE CANADIAN WARRANTY CARD IN CANADA AND USA WARRANTY CARD IN THE UNITED STATES.
IMPORTANT IMPORTANT
Model
Serial #
Date of Installation:
Company Name:
Telephone #: ( ) ---
Contact:
Address:
Address:
Telephone #:
Contact:
Installation Company:
(Street) State or Province Zip Code
This Card Must Be Returned to Validate Machine Warranty:
WARRANTY REGISTRATION CARD
IMPORTANT IMPORTANT
Model
Serial #
Date of Installation:
Company Name:
Telephone #: ( ) ---
Contact:
Address:
Address:
Telephone #:
Contact:
Installation Company:
(Street) State or Province Zip Code
This Card Must Be Returned to Validate Machine Warranty:
WARRANTY REGISTRATION CARD
i
Revision Revised SerialNumber Revision 
Date Pages Effectivity Description
9.15.06 All W11948  Releasedrstedition
3.22.07 59 W11948 RevisedSchematic
SolidStateTimerService
11.26.07 iii,3-6,28-29, W14326 Installation,schematics
30-31,32-33, MTB,Boosterinterlock
61-66 2KWwashtankHeater
12.1.07 32-33 W14478 Boostercontrolthermostat
P/Nchangedfrom109069
to0512108
6.10.09 All W14236 Releasedrev.Dofmanual
6.10.09 42-43 W081217467 AddedP/N0712105Timer
Bd.toPartsList
6.10.09 70 W081217467 AddedTimerBd.
DiagnosticInstructions
RevisionHistory
 RevisionHistory
• TheRevisionHistorycancontainpartnumberchanges,newinstructions,or
informationthatwasnotavailableatprinttime.
• Wereservetherighttomakechangestotheseinstructionswithoutnoticeandwithout
incurringanyliabilitybymakingthechanges..
• Equipmentownersmayrequestarevisedmanual,atnocharge,bycalling
1(800)858-4477intheUSAorbycalling1(800)263-5798inCanada.
6.10.09 28-29 W081217467 AddedThermostat
Adaptertobooster
10.5.09 30-31 W14236 ChangedContactorP/N
from107369to112518
2.25.10 15 W100120006 Revised401HTOperation
2.25.10 28-29 W100120006 Revised401HTBooster
addingRinse
ThermometerTee
2.25.10 46-47 W100120006 RevisedThermometerP/N's
2.25.10 52-53 W100120006 RevisedFrontPanelP/N's
10.4.10 49 W100120006 ChangedItem13P/Nfrom
0312183toP/N0312181
ii
LimitedWarranty
LIMITED WARRANTY
MoyerDiebel,P.O.Box4149,Winston-Salem,NorthCarolina27115,andP.O.Box301,2674N.ServiceRoad,
JordanStation,Canada,L0R1S0,warrantsmachines,andparts,assetoutbelow.
Warranty of Machines:MoyerDiebelwarrantsallnewmachinesofitsmanufacturebearingthename
"MoyerDiebel"andinstalledwithintheUnitedStatesandCanadatobefreefromdefectsinmaterialandworkman
shipforaperiodofone(1)yearafterthedateofinstallationorfteen(15)monthsafterthedateofshipmentby
MoyerDiebel,whicheveroccursrst.[Seebelowforspecialprovisionsrelatingtoglasswashers.]Thewarranty
registrationcardmustbereturnedtoMoyerDiebelwithinten(10)daysafterinstallation.Ifwarrantycardisnot
returnedtoMoyerDiebelwithinsuchperiod,thewarrantywillexpireafteroneyearfromthedateofshipment.
MoyerDiebelwillnotassumeanyresponsibilityforextracostsforinstallationinanyareawherethereare
jurisdictionalproblemswithlocaltradesorunions.
Ifadefectinworkmanshipormaterialisfoundtoexistwithinthewarrantyperiod,MoyerDiebel,atitselection,
willeitherrepairorreplacethedefectivemachineoracceptreturnofthemachineforfullcredit;provided;
however,astoglasswashers,MoyerDiebel'sobligationwithrespecttolaborassociatedwithanyrepairsshallend
(a)120daysaftershipment,or(b)90daysafterinstallation,whicheveroccursrst.IntheeventthatMoyerDiebel
electstorepair,thelaborandworktobeperformedinconnectionwiththewarrantyshallbedoneduringregular
workinghoursbyaMoyerDiebelauthorizedservicetechnician.DefectivepartsbecomethepropertyofMoyerDiebel.
UseofreplacementpartsnotauthorizedbyMoyerDiebelwillrelieveMoyerDiebelofallfurtherliabilityinconnection
withitswarranty.InnoeventwillMoyerDiebel'swarrantyobligationexceedMoyerDiebel'schargeforthemachine.
ThefollowingarenotcoveredbyMoyerDiebel'swarranty:
a. Lightingofgaspilotsorburners.
b. Cleaningofgaslines.
c. Replacementoffusesorresettingofoverloadbreakers.
d. Adjustmentofthermostats.
e. Adjustmentofclutches.
f. Openingorclosingofutilitysupplyvalvesorswitchingofelectricalsupplycurrent.
g. Cleaningofvalves,strainers,screens,nozzles,orspraypipes.
h. Performanceofregularmaintenanceandcleaningasoutlinedinoperator’sguide.
i. Damagesresultingfromwaterconditions,accidents,alterations,improperuse,abuse,
tampering,improperinstallation,orfailuretofollowmaintenanceandoperationprocedures.
j. WearonPulpercutterblocks,pulsevanes,andaugerbrush.
Examplesofthedefectsnotcoveredbywarrantyinclude,butarenotlimitedto:(1)Damagetotheexterioror 
interiornishasaresultoftheabove,(2)Usewithutilityserviceotherthanthatdesignatedontheratingplate,
(3)Improperconnectiontoutilityservice,(4)Inadequateorexcessivewaterpressure,(5)Corrosionfrom
chemicalsdispensedinexcessofrecommendedconcentrations,(6)Failureofelectricalcomponentsdueto
connectionofchemicaldispensingequipmentinstalledbyothers,(7)Leaksordamageresultingfromsuch
leakscausedbytheinstaller,includingthoseatmachinetableconnectionsorbyconnectionofchemical
dispensingequipmentinstalledbyothers,(8)Failuretocomplywithlocalbuildingcodes,(9)Damage
causedbylabordispute.
Warranty of Parts:MoyerDiebelwarrantsallnewmachinepartsproducedorauthorizedbyMoyerDiebeltobefree
fromdefectsinmaterialandworkmanshipforaperiodof90daysfromdateofinvoice.Ifanydefectin
materialandworkmanshipisfoundtoexistwithinthewarrantyperiodMoyerDiebelwillreplacethedefective
partwithoutcharge.
DISCLAIMER OF WARRANTIES AND LIMITATIONS OF LIABILITY. MOYER DIEBEL'S WARRANTY IS ONLY TO THE
EXTENT REFLECTED ABOVE. MOYER DIEBEL MAKES NO OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUD-
ING, BUT NOT LIMITED, TO ANY WARRANTY OF MERCHANTABILITY, OR FITNESS OF PURPOSE. MOYER DIEBEL
SHALL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES. THE REMEDIES SET OUT ABOVE ARE
THE EXCLUSIVE REMEDIES FOR ANY DEFECTS FOUND TO EXIST IN MOYER DIEBEL DISHWASHING MACHINES
AND MOYER DIEBEL PARTS, AND ALL OTHER REMEDIES ARE EXCLUDED, INCLUDING ANY LIABILITY FOR
INCIDENTALS OR CONSEQUENTIAL DAMAGES.
MoyerDiebeldoesnotauthorizeanyotherperson,includingpersonswhodealinMoyerDiebeldishwashingmachines
tochangethiswarrantyorcreateanyotherobligationinconnectionwithMoyerDiebelDishwashingMachines.
iii
RevisionHistory ...........................................................................................................i
LimitedWarranty ...........................................................................................................ii
ModelDescriptions ...........................................................................................................iv
Installation..............................................................................................1
Receiving....................................................................1
ElectricalConnections................................................2
WaterConnections.....................................................6
DrainConnections......................................................7
Initial Start-up..........................................................................................8
BoosterFillSwitch......................................................8
CheckList...................................................................9
ChemicalDispensingPumps......................................10
Priming..............................12
Adjustments.......................13
Operation................................................................................................................ 14
NormalWashMode....................................................14
ScrubMode(extendedwash)....................................15
RinseSentryMode.....................................................15
DrainOperation..........................................................16
Cleaning and Maintenance........................................................................17
Cleaning......................................................................17
De-liming.....................................................................19
Maintenance...............................................................20
Troubleshooting..........................................................21
Service Replacement Parts.......................................................................23
Electrical Schematics............................................................................................ 55
Timer Chart
.............................................................................................62
Basic Service
..........................................................................................63
TableofContents
TableofContents
Model201,401,501UndercounterDishwashers
iv
ModelDescription
ModelDescription
201-HT, 401-HT, and 501-HT Models
Pumpednalrinsehightemperaturesanitizingdishwasher
withbuilt-in40°Frisestainlesssteelelectricbooster.
SinglePhasetoThreePhaseFieldConversion.
201-HTN, 401-HTN, and 501-HTN Models
Pumpednalrinsehightemperaturesanitizingdishwasher
withoutbuilt-in40°Frisestainlesssteelelectricbooster.
201-LT, 501-LT Model
Pumpednalrinselowtemperaturechemicalsanitizingdishwasher
with3built-inchemicaldispensingpumps.
Optional Equipment (consultfactory)
70°F/39°Crisebuilt-inboosterheater
70°F/39°Criseboosterheaterelement-P/N111233,Gasket-P/N109985
1-RDTRight-handsink-P/N403562
1-RDTLeft-handsink-P/N403561
17"Stand-P/N0708757
17"Storagecabinet-P/N0703593
6"Stand-P/N0712393
Pegdishrack-P/N101285
Flat-bottomdishrack-P/N101273
Drainwatertemperingkit-0712382-1
1
NOTE:
The installation of your dishwasher must be performed by qualified service personnel.
Problems due to improper installation are not covered by the Warranty.
1. Inspect the outside of the dishwasher carton for signs of damage.
2. Remove the carton and inspect the dishwasher for damage.
3. Check for any accessories that may have shipped with your dishwasher.
4. Turn to the front of this manual and complete the warranty card.
Immediately mail the warranty card to validate your warranty.
5. Move the dishwasher near its permanent location.
CAUTION:
Be careful when lifting and moving the dishwasher to prevent damage to the machine.
NOTE:
The installation of the dishwasher must comply with local health codes.
6. Compare the installation site utility connections with the dishwasher utility connections and
make sure that they are the same.
7. The dishwasher can be installed as a free-standing unit or under a built-in counter-top.
The typical counter-top height in most locations is 34" [86cm].
8. Under counter installations should provide storage space for the dishwasher chemical supply
containers. Containers must not be
placed higher than 10" [25cm] above the oor.
9. Chemical supply containers should be placed as
close to the machine as possible.
10. Place the dishwasher in its permanent location.
11. The dishwasher has 4 adjustable feet for
leveling.
12. Level the dishwasher front-to-back and
side-to-side.
Installation
Receiving
Counter-top
Wall
3" [8cm] Min.
34"
[86cm]
Min.
Floor
2
Installation
Electrical Connections
For Model 201HT, 401HT, and 501HT machines beginning with S/N 14236 and above
L1 L2 L3 N
208-230
VAC
208-230
VAC
208-230 VAC
115VAC
GRD
(For machines
beginning with S/N 14236 and above)
THREE PHASE POWER CONNECTION
Model 201HT, 401HT, 501HT
HOW TO CONNECT 3 PHASE POWER
1. Check the data plate on the front of the
dishwasher for the phase of the machine.
.
2. Remove the lower access panel.
3. Pull power connection box forward and out.
4. The Main Terminal Block has terminals for
L1, L2, L3, Neutral and Ground.
5. Connect ground, then connect
L1, L2, L3 to 208-230VAC.
6. Connect a current carrying neutral to N.
7. Main power connections are complete.
If the data plate says the machine is 3 Phase,
then connect a 3 PH power supply.
/ / / 1

9$&
9$&
9$&
9$&
*5'
)RUPDFKLQHV
EHJLQQLQJZLWK61DQGDERYH
6,1*/(3+$6(32:(5&211(&7,21
0RGHO+7+7+7
'RQRWFRQQHFWSRZHUWR/
+2:72&211(&73+$6(32:(5
 &KHFNWKHGDWDSODWHRQWKHIURQWRIWKH
GLVKZDVKHUIRUWKHSKDVHRIWKHPDFKLQH
 5HPRYHWKHORZHUDFFHVVSDQHO
 3XOOSRZHUFRQQHFWLRQER[IRUZDUGDQGRXW
 7KH0DLQ7HUPLQDO%ORFNKDVFRQQHFWLRQV
IRU///1HXWUDODQG*URXQG
 &RQQHFWJURXQGWKHQFRQQHFW
//WR9$&
 &RQQHFWDFXUUHQWFDUU\LQJQHXWUDOWR1
 0DLQ3RZHUFRQQHFWLRQVDUHFRPSOHWH
,IWKHGDWDSODWHVD\VWKHPDFKLQHLV3KDVH
WKHQFRQQHFWD3+SRZHUVXSSO\
'2127&211(&732:(572/
ATTENTION
Models 201 HTN, 201LT, 401HTN, 501HTN, 501LT are equipped with a 4 ft. power cord and plug.
These models only require a 115VAC,15A receptacle.
1. Refer to the connection diagrams below.
2. Models 201HTN /LT, 401HTN, 501HTN /LT are equipped with a
4 ft. power cord/plug and only require a 115VAC,15A receptacle.
3. Models 201 HT, 401HT, and 501HT 1 PH machines require a
3-wire plus ground supply which includes a current carrying neutral.
4. Models 201 HT, 401HT, and 501HT 3 PH machines
require a 4-wire plus ground supply which includes a current carrying neutral.
5. Power connections are made at the Main Terminal Block (MTB) which is
located at the lower right-hand side of the dishwasher directly behind the
lower front access panel.
6. Remove the MTB cover and 2 screws holding the MTB to the machine base.
Then, pull the MTB up and forward to make the electrical connections.
7. Provide a 3 ft. service loop in the supply cable for servicing.
8. Re-install the MTB and the lower front access panel to complete the installation.
Pull the MTB out to wire
main incoming power.
3
Installation
Electrical Connections
WARNING:
Electrocution or serious injury may result when working on an
energized circuit.
Disconnect power at the main breaker or service disconnect
switch before working on the circuit.
Lock-out and tag the breaker to indicate that work is being
performed on the circuit.
1. Refer to the connection diagrams above.
2. Models 201HTN /LT, 401HTN, 501HTN /LT are equipped with a 4 ft.
power cord/plug and only require a 115VAC,15A receptacle.
3. Models 201 HT, 401HT, and 501HT 1 PH machines require
a 3-wire plus ground supply which includes a current carrying neutral.
4. Models 201 HT, 401HT, and 501HT 3 PH machines require a
4-wire plus ground supply which includes a current carrying neutral.
5. Power connections are made at the Main Terminal Block
(MTB) which is located at the lower right-hand side of the
dishwasher directly behind the lower front access panel.
6. Remove the MTB cover and 2 screws holding the MTB
to the machine base. Then, pull the MTB up and forward
to make the electrical connections.
7. Provide a 3 ft. service loop in the supply cable for servicing.
8. Re-install the MTB and the lower front access panel to
complete the installation.
Main Terminal Block (MTB)
shown pulled out of dishwasher front
to wire main incoming power
For machines built prior to S/N 14236
ATTENTION
A qualified electrician must connect the main incoming power to the dishwasher in accordance with all local
codes and regulations or in the absence of local codes in accordance with the National Electrical Code.
Note:
Models 201 HTN, 201LT, 401HTN, 501HTN, 501LT are equipped with a 4 ft. power cord and plug.
These models only require a 115VAC,15A receptacle.
L1 L2 N
208-230
VAC
115VAC
L1 L2
115VAC
15A
4 ft. power cord w/plug supplied
Model 201HTN / LT, 401HTN, 501HTN /LT
All S/N's
Model 201HT, 401HT, 501HT
Prior to S/N 14236
4
Electrical Connections (continued)
For Models 201HT, 401HT, and 501HT beginning with S/N 14236 and above
Dishwashers shipped from the factory wired for 1 phase operation can be changed to 3 phase
operation by following the procedure below.
1. Disconnect the main incoming power at the main service disconnect breaker or switch.
2. Remove the lower front access panel,
3. Remove the booster heater element cover.
4. Locate the 1H3 booster heater wire stored on the right-side of the booster tank.
5. Disconnect the existing booster heater wires and change the booster heater element
jumpers as shown in the illustration below
6. Connect wires 1H1, 1H2, and 1H3 as shown.
7. Re-install the booster heater cover.
8. A replacement 3PH data plate is stowed on the back of the lower front access panel.
Remove the existing 1PH data plate on the front of the panel with the new 3PH data plate.
Discard the 1PH data plate.
9. Contact a qualied electrician to change the incoming service power to 3PH. An illustration
of the power connections on the Main Terminal Block is on the next page.
WARNING:
Electrocution or serious injury may result when working on an
energized circuit.
Disconnect power at the main breaker or service disconnect
switch before working on the circuit.
Lock-out and tag the breaker to indicate that work is being
performed on the circuit.
1H1
1H2
1H3
Booster Heater
Connected for 1PH
1H1
Booster Heater
Connected for 3PH
1H2
1H3
Wire not
connected
Booster heater element connections shown for 1 phase and 3 phase operation.
Booster Heater Element
Field Conversion from Single to Three Phase Operation
Installation
5
Installation
Booter Heater/Wash Tank Heater Interlock Circuit
For Model 201HT, 401HT, 501HT dishwashers beginning with S/N 14236 and above.
The booster heater/wash tank heater interlock circuit removes power from the wash tank heater whenever
the booster heater contactor energizes. The illustration below shows how the booster heater contactor is
wired. The booster heater contactor is located behind the lower front access panel.
Interlock Circuit Operation
1. The dishwasher lls with water when the
main power switch on the dishwasher is turned on.
The booster heater thermostat calls for heat
which energizes the booster heater contactor.
2. The auxiliary contact on the top of the contactor
opens and removes power from the wash tank
heater.
3. When the booster heater thermostat is
satised, the booster heater contactor de-
energizes and the auxiliary contacts close
applying power to the wash tank heater.
4. This operation is repeated whenever the
booster heater calls for heat.
To booster
heater contactor
1PH
208-230VAC
To
Auxiliary
Contactor
115VAC
No power when booster
heater is connected for 1 PH
No power when booster
heater is connected for 1 PH
L1 L2 L3 N
Main Terminal Block (MTB)
Booster Heater Element
Field Conversion from Single to Three Phase Operation (continued)
ATTENTION ELECTRICIAN:
The Main Terminal Block (MTB) is a 4-wire
connection block which includes a current-carrying
neutral. The block can be connected for 3PH or
1PH depending on how the booster heater heater is
wired ( see the previous page). Refer to the diagram
to the right and connect the main incoming electric
service accordingly. The data plate on the lower
front cover of the dishwasher provides the correct
power requirements.
Contact the local authorized service agent if there
are any questions concerning the proper power
connections.
To wash
tank heater
115VAC
From
main
terminal block
115 VAC
From
main
terminal block
1 PH
208-230VAC
No power
when booster
heater is
connected for
1 PH
No power when booster
heater is connected for 1 PH
L1
L3
L1
N
L2
To booster heater
1 PH 208-230VAC
1H2
1H3
1H1
Auxiliary
Contactor
Booster Heater
Contactor
6
Water Connections
1. All models have a 6 ft./1.8 m exible hot water ll hose with a 3/4" female garden hose
connector.
2. A 1/2" or larger main incoming supply line should be installed to the dishwasher.
3. A 1/2" or larger shut-off valve should be installed in the main water supply as close to the
dishwasher as possible for service.
4. All models have a built-in ow control. The incoming hot water supply pressure must be
between 25-95 psi/173-655 kPa.
5. For Models 201HT, 401HT, and 501HT:
For the 40°F/ 22°C rise booster, the hot water supply must provide a minimum of
140°F/60°C, measured at the dishwasher.
For the 70°F/39°C rise booster the hot water supply must provide a minimum of 110°F/43°C
measured at the dishwasher.
6. For Models 201HTN, 401HTN, 501HTN:
The hot water supply must provide a minimum of 180°F/82°C, measured at the dishwasher
for The incoming hot water supply line must be a 1/2" or larger.
7. Models 201LT, 501LT:
The hot water supply must provide a minimum of 140°F/60°C, measured at the dishwasher.
Installation
NOTE
Plumbing connections must comply with national, local plumbing and sanitary codes.
IMPORTANT
Make sure that the flexible water supply and drain hoses are not kinked.
7
Installation
Drain Connections
1. All models have a 6ft. 5/8" I.D. drain hose. The maximum drain height connection
must not exceed 3 ft.[9 m]. The recommended drain height is 17" [.4 m] or less
above the nished oor.
2. The drain hose is located at the rear of the dishwasher. A 5/8" hose-barb tting is
strapped to the drain hose to connect the drain hose.
3. The drain hose is secured to the rear of the machine by a clamp to maintain a
goose-neck bend in the drain hose.
DO NOT REMOVE THE DRAIN HOSE RETAINING CLAMP.
DO NOT STRETCH THE DRAIN HOSE.
4. Install the drain hose to a "WYE" drain tting. Connection to a "TEE" tting will
prevent the dishwasher from draining completely.
5. The maximum drain ow is 15 US gpm/12.5 Imp gpm/57 Lpm
6. Make sure the drain hose does not kink. Kinks will prevent the dishwasher
from draining completely, and the dishwasher will overow out the front door.
NOTE
The dishwasher drains in 8 seconds and drain water exits the hose with considerable force.
ATTENTION
Do not connect the drain hose to a disposer. The dishwasher will not drain correctly.
The dishwasher flexible drain hose
must be connected to a WYE fitting.
Do not connect the dishwasher
flexible drain hose to a TEE fitting.
8
Filling the Booster
Initial Start-up
For Models 501HT, 401HT, and 201HT
A
B
C
Booster Fill Switch
The booster heater is filled using the Booster
Fill Switch. It is located behind the lower front
access panel in the center of the bracket that
holds the chemical dispensing pumps (see the
photos to the right).
Fill the booster heater:
1. Make sure that the dishwasher power
switch is OFF.
2. Remove the lower front access panel.
3. Locate the booster ll switch. It is in the
left-center of the electrical component
panel.
4. Make sure the Booster Fill Switch is in
the middle position, (see A).
5. Turn the water supply and the main
power supply on.
DO NOT TURN THE DISHWASHER
POWER SWITCH ON.
6. Push and hold the switch to the FILL
position (see B) until you hear water
entering the wash compartment,
then release the switch.
7. Push the Booster Fill Switch to the ON
position and release (see C).
Note:
The dishwasher contains a built-in booster heater that was drained prior to shipment
and must be filled with water before operating the dishwasher.
9
Install Scrap Screen
1. Remove any protective lm from dishwasher.
2. Check the interior for foreign material.
3. Make sure that the dishwasher is permanently located.
4. Make sure that all utility connections are complete.
5. Make sure that the exible drain hose and the hot water ll hose are not kinked.
6. Make sure that the chemical supply containers are full and that the chemical pick-up tubes
are installed in the proper containers.
7. Make sure that the scrap screen is in place.
8. Make sure that the spray arms are in place and that they spin freely.
9. Close the dishwasher door.
10. Turn hot water supply on and check for leaks in the main water supply piping connected
to the dishwasher.
Initial Start-up
Check List
All Models
10
1. Models 201HT, 201HTN, 401HT, 401HTN, 501HT, and 501HTN:
are equipped with a built-in detergent dispensing pump and a rinse-aid dispensing pump.
The pumps are located behind the lower front access panel.
2. Each pump is equipped with a line-strainer, stiffener tube and 6 ft. of pick-up tubing.
The pick-up tubes are marked with colored labels that identify the type of chemical used.
RED = Detergent (Non-chlorinated)
BLUE = Rinse-Aid (Consult chemical supplier)
WHITE = Sanitizer (5.25% Sodium hypochlorite (chlorine bleach) solution.
(LT ONLY)
3. Make sure the stiffener tubes are placed in the correct chemical supply container
(chemicals supplied by others).
4. The chemical supplier must adjust the dispensers to deliver the correct amount of
chemicals to the dishwasher.
5. Chemical containers must be placed as close to the dishwasher as possible.
Do not elevate the containers above the nished oor.
Chemical Dispensing Pumps
Initial Start-up
Chemical Dispensing Pumps for
High Temperature HT and HTN
Models.
Chemical Pick-up Tubes,
stiffener tubes & line
strainers.
Chemical Injection Point
Models 501HT, 501HTN, 401HT, 401HTN, 201HT, 201HTN
11
Initial Start-up
Chemical Dispensing Pumps
Chemical Injection Point
501LT and 201LT Chemical Dispensers
ATTENTION
(For LT Models Only), 5.25% sodium hypochlorite (chlorine bleach) must be used as a
sanitizing agent to provide a minimum concentration of 50 ppm in the final rinse.
The 50 ppm concentration must be checked using chlorine test strips to make sure that the
proper concentration is maintained
1. Models 501LT and 201LT are equipped with a built-in
detergent, rinse-aid, and sanitizer dispensing pumps
(See the photograph at right).
2. The pumps are located on a center bracket behind the
lower-front access panel.
3. The pick-up tubes are marked with colored labels that
identify the type of chemical used:
RED = Detergent (Non-chlorinated)
BLUE = Rinse-Aid (Consult chemical supplier)
WHITE = Sanitizer (5.25% Sodium hypochlorite
(chlorine bleach) solution.
The chemicals enter the wash tank compartment through
a tting on the right-side of the wash compartment.
4. The detergent supply should be a non-chlorinated
liquid detergent, the chemical supplier will determine an
appropriate rinse agent. Your chemical supplier should
adjust the dispensers for the supplied product.
5. Place the chemical supply containers
as close to the dishwasher as possible.
6. Do not elevate the chemical containers
above the nished oor.
Models 501LT and 201LT
Chemical Pick-up Tubes,
stiffener tubes & line
strainers.
12
Chemical Dispensers
Initial Start-up
1. Make sure the chemical containers are full and the correct pick-up tubes are in the
containers.
2. Turn the dishwasher power switch ON. The switch will illuminate and the dishwasher
will ll with water.
3. The Prime push button primes the Sanitizer pump and the Rinse-aid pump.
The Detergent pump does not have a prime push button. During normal operation,
observe the detergent pick-up tubing to make sure that air bubbles are moving
through the tubing which indicates that the detergent is being dispensed.
4. Open the dishwasher door, then push and hold the prime push button UP to the
SANI position until sanitizer enters the wash tank compartment. Release the PRIME
push button.
5. Push and hold the Prime push button DOWN to the RINSE position until rinse-aid
is observed entering the wash tank compartment. Release the Prime push button.
6. Priming is complete.
1. Make sure the chemical containers are full and the correct pick-up tubes are in the
containers.
2. Turn the dishwasher power switch ON. The switch will illuminate and the
dishwasher will ll with water.
3. Open the dishwasher door, then push and hold the prime push button UP to the
DET position until detergent is observed entering the wash tank compartment.
4. Push and hold the prime push button DOWN to the RINSE position until rinse-aid
enters the wash tank compartment. Release the push button.
5. Priming is complete.
Priming the Chemical Dispensing Pumps
Models 501HT, 501HTN, 401HT, 401HTN, 201HT, 201HTN
Models 501LT, and 201LT
PRIME
DET
R/A
Prime Switch
Model Series 501
Prime Switch
Model Series 401, 201
  • Page 1 1
  • Page 2 2
  • Page 3 3
  • Page 4 4
  • Page 5 5
  • Page 6 6
  • Page 7 7
  • Page 8 8
  • Page 9 9
  • Page 10 10
  • Page 11 11
  • Page 12 12
  • Page 13 13
  • Page 14 14
  • Page 15 15
  • Page 16 16
  • Page 17 17
  • Page 18 18
  • Page 19 19
  • Page 20 20
  • Page 21 21
  • Page 22 22
  • Page 23 23
  • Page 24 24
  • Page 25 25
  • Page 26 26
  • Page 27 27
  • Page 28 28
  • Page 29 29
  • Page 30 30
  • Page 31 31
  • Page 32 32
  • Page 33 33
  • Page 34 34
  • Page 35 35
  • Page 36 36
  • Page 37 37
  • Page 38 38
  • Page 39 39
  • Page 40 40
  • Page 41 41
  • Page 42 42
  • Page 43 43
  • Page 44 44
  • Page 45 45
  • Page 46 46
  • Page 47 47
  • Page 48 48
  • Page 49 49
  • Page 50 50
  • Page 51 51
  • Page 52 52
  • Page 53 53
  • Page 54 54
  • Page 55 55
  • Page 56 56
  • Page 57 57
  • Page 58 58
  • Page 59 59
  • Page 60 60
  • Page 61 61
  • Page 62 62
  • Page 63 63
  • Page 64 64
  • Page 65 65
  • Page 66 66
  • Page 67 67
  • Page 68 68
  • Page 69 69
  • Page 70 70
  • Page 71 71
  • Page 72 72
  • Page 73 73
  • Page 74 74
  • Page 75 75
  • Page 76 76

Moyer Diebel 401-HT Installation & Operation Manual

Category
Dishwashers
Type
Installation & Operation Manual
This manual is also suitable for

Ask a question and I''ll find the answer in the document

Finding information in a document is now easier with AI