Instruction/ maintenance manual of the product 501HTN Moyer Diebel
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Installation/Operation Manual with Service Replacement Parts Issue Date: 3.15.1 1 Manual P/N 0512240 rev . K For machines beginning with S/N W1 1948 and above Dishwasher serial no.
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i Revision Revised SerialNumber Revision Date Pages Effectivity Description 9.15.06 All W1 1948 Releasedrstedition 3.22.07 59 W1 1948 RevisedSchematic SolidStateTimerService 1 1.
ii RevisionHistory RevisionHistory (continued) Revision Revised SerialNumber Revision Date Pages Effectivity .
iii BlankPage ThisPage Intentionally LeftBlank.
iv LimitedWarranty LIMITED W ARRANTY Moyer Diebel, 3765 Champion Boulevard, Winston-Salem, North Carolina 27105, and P .O. Box 301, 2674 N. Service Road, Jordan Station, Canada, L0R 1S0, warrants machines, and parts, as set out below .
v RevisionHistory ........................................................................................................... i LimitedWarranty .......................................................................................
vi ModelDescription 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 .
1 NOTE: The installation of your dishwasher must be performed by qualified service personnel. Problems due to improper installation are not covered by the W arranty . 1. Inspect the outside of the dishwasher carton for signs of damage. 2. Remove the carton and inspect the dishwasher for damage.
2 Installation Electrical Connections For Model 201HT , 401HT , and 501HT machines beginning with S/N 14236 and above L1 L2 L3 N 208-230 V AC 208-230 V AC 208-230 V AC 1 15V AC 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.
3 Installation Electrical Connections W ARNING: 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.
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.
5 Installation Booster Heater/W ash T ank 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.
6 W ater Connections 1. All models have a 6 ft./1.8m 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 .
7 Installation Drain Connections 1. All models have a 6 ft. 5/8" I.D. drain hose. The maximum drain height connection must not exceed 3 ft.[0.9 m]. 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.
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).
9 Install Scrap Screen 1. Remove any protective lm from dishwasher . 2. Check the interior for foreign material. 3. Make sure the dishwasher is permanently located. 4. Make sure all utility connections are complete. 5. Make sure the exible drain hose and the hot water ll hose are not kinked.
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.
1 1 Initial Start-up Chemical Dispensing Pumps Chemical Injection Point 501L T and 201L T Chemical Dispensers A TTENTION (For L T 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.
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. T urn the dishwasher power switch ON. The switch will illuminate and the dishwasher will ll with water . 3.
13 Note: The chemical dispensing pump speeds are not set at the factory because variations in the type of chemicals supplied by the chemical supplier usually require that the supplier make nal the adjustments. 1. Adjustment screws are provided for the dispensing pumps and for the wash tank ll.
14 1. Push the POWER switch up to the ON position. The switch illuminates, water enters the wash compartment. The booster heater begins to heat the nal rinse water then the wash tank heater heats the wash tank water . 2. W ait 10 minutes for the booster to reach temperature.
15 6. Check the rinse cycle temperature gauge during the final rinse cycle to ensure the final rinse temperature ranges between 180-195°F/82-91°C for high temperature models. 7. The green in-cycle light goes out completing the cycle. The final rinse water is held for the next wash cycle.
16 Operation Dishwasher Drain Operation 1. Push the dishwasher POWER switch up to the ON position. 2. The POWER switch illuminates and the machine lls with water . 3. Press and hold the green ST ART button for 1 second. (Silver button for Model 501HT).
17 The best preventative maintenance is keeping the dishwasher as clean as possible during regular use. A regular cleaning schedule will increase the life of the dishwasher and ensure the best results. CAUTION: Damage to the unit or improper operation may occur if components are not flushed and cleaned on a regularly scheduled basis.
18 Clean Wash Nozzles and Bearings Daily-End of the Day (continued) Cleaning Cleaning 6. Reinstall the scrap screen. 7. Wipe the exterior of the dishwasher clean using a soft cloth and mild detergent. 8. Leave the dishwasher door open overnight to allow the inside to dry .
19 After Meal Period or Every 8 Hours Clean the scrap screen after each meal period and more frequently if necessary in order to keep the scrap screen from becoming clogged. De-liming Y our dishwasher should be de-limed regularly . The frequency will depend on the mineral content of your water .
20 The best maintenance you can perform is to keep your dishwasher clean. Before and During Operation - Check the temperature gauges during operation to ensure the proper temperatures are maintained. - Check the chemical supply container level and replenish if necessary .
21 T roubleshooting Condition Cause Solution Dishwasher will not run. Low or no water . Chemicals won’t feed into dishwasher . Door not closed. Main power OFF . Dishwasher OFF . Main water supply off. Solenoid valve defective. Solenoid strainer clogged.
22 This Page Intentionally Left Blank Blank Page.
23 Service Replacement Parts Service Replacement Parts W ash Pump/Motor Assy - All Models .......................................................... 24 W ash T ank, Drain, Scrap Screens - All Models .......................................... 26 Built-in Electric Booster (201HT , 401HT , 501HT) .
24 Wash Pump/Motor Assy - All Models 1 2 6 3 4 5 7 9 8 10 11 13 12.
25 Item Part Description Qty . No. No. 1 0512340 SCREW , M4.0x0.70 30mm PHILIPS P AN HEAD 9 2 0512341 IMPELLER HOUSING COVER 1 3 1 14144 NUT , M6 (left-hand threads) 1 4 0501501 W ASHER, LOCK, 1/4&quo.
26 Wash T ank, Drain, Scrap Screens - All Models 2 6 4 23 28 29 3 18 7 8 9 10 12 13 14 5 17 15 16 19 22 20 1 1 21 24 25 26 26 Item 4 not used on Model 401 Item 6 & 26 not used on Model 401 29 Mode.
27 All Models - Wash T ank, Drain, Scrap Screens Item Part Description Qty . No. No. 1 0509302 94” DRAIN HOSE - 5/8” ID X 1” OD N/S 1 2 0712136 SCREEN, SCRAP ASSY 1 3 0512107 THERMOMETER, 7 FT . CAPILLARY (Except 501HT) 1 4 0512169 HEA TER, 120V AC 750W (For Low T emp.
28 Built-in Electric Booster (201HT , 401HT , 501HT) 1 2 3 4 5 6 7 8 10 1 1 12 13 14 15 16 14 15 17 18 14 13 12 19 15 20 21 14 22 14 15 23 24 401 HT Only.
29 Built-in Electric Booster (201HT , 401HT , 501HT) Item Part Description Qty . No. No. 1 0509042 BOOSTER T ANK 1 2 0512185 BOL T , HEX FLANGE 1/4-20 X 3/8 SS 2 3 0508817 PLUG, 1/8 HEX COUNTERSUNK 1 4 109985 SEAL, ELECTRIC HEA TER FLANGE 1 5 1 1 1235 HEA TER 5/6.
30 Base Electrical Components - All Models For Booster Heater (Prior to S/N 14236) For Booster Heater (Beginning with S/N 14236 and above) For Wash T ank Heater (All S/N’s) RINSE F I L L O F F O N -.
31 All Models - Base Electrical Components Item Part Description Qty . No. No. 1* 0512108 THERMOST A T , BOOSTER 1 (Beginning with S/N W14236 and above) (501HT , 401HT , 201HT) 1 109069 THERMOST A T ,.
32 Fill Piping - All Models.
33 1 0502653 ELBOW , 90 DEGR 3/8MPTX1/2 HOSE 1 2 0512185 BOL T , HEX FLANGE 1/4-20 X 3/8 SS 4 3 0300065 SUPPORT , V AL VE 1 4 0300203 CLAMP , V AL VE 1 5 0502618 HOSE BARB, 1/2 X 3/8 MPT 1 6 0503679 CLAMP , SS GEAR-MIN. 5/16-MAX.7/8 1 7 0509526 HOSE, 1/2 X 7FT FEM.
34 Fill V alve Assy - All Models 5 6 7 8 9.
35 1 0504952 SOLENOID V AL VE, COMPLETE (5.0 GPM) 1 2 0502803 STRAINER SCREEN, SOLENOID V AL VE 1 3 0502804 W ASHER, SEAL 1 4 0504958 W ASHER, FLOW 5.0 GPM 1 5 0502807 GASKET 1 6 050281 1 KIT , REBUILD 1 7 0505229 GUIDE 1 8 0501406 SCREW , SLOT SS RH 8-32 X 1/2 3 9 0505235 COIL, 1 15V 60HZ 10W 1 Item Part Description Qty .
36 9 5 4 3 2 8 1 7 6 FROM RINSE-AID AND SANITIZER PUMPS FROM DETERGENT PUMP FROM TOP OF BOOSTER OR FILL V AL VE Fill Chute Assy - All Models.
37 1 106090 TIE PLA TE 2 2 0509048 GASKET , INLET CHUTE 1 3 0508867 CHUTE, INLET INJ.MOLDED 1 4 0507709 W ASHER, FLA T #10 SS 4 5 0503722 NUT , HEX 10-32 SS 6 6 0502666 HOSE, 1/8ID X 1/4OD PVC 8 ft. (RINSE AID AND SANITIZER PUMP) 7 0502667 HOSE, 1/4ID X 3/8OD PVC 8 ft.
38 8 10 1 1 1 1 12 12 13 13 17 18 19 20 21 22 23 25 26 15 15 16 17 16 14 14 8 24 23 Sprayarm Assy . - All Models.
39 1 0501478 W ASHER, 17/64IDX9/16 OD18G SS 4 2 107967 NUT , HEX SS 1/4-20 NYLON INSERT 4 3 H35509 HUB,UPPER W ASH ARM 1 4 107873 W ASHER, P ACKING 1 5 1 10215 SCREW , RET AINING 1 6 0502571 CLAMP ,HOSE GEAR HOSE 1-1/2” SS 2 7 0512120 HOSE, UPPER W ASH ARM, 1 8* 0712749 ASSY .
40 2 1 4 5 8 9 8 16 19 17 20 15 14 6 3 13 10 18 4 T ry replacing the 4 Amp fuse before replacing the circuit bd. 7 11 12 Main T erminal Block, Timer Board - All Models.
41 Item Part Description Qty . No. No. All Models - Main T erminal Block, Timer Board 1 107964 BUSHING, SNAP (ALL) 3 2 0312188 BASE, TIMER ENCLOSURE 1 3 0508710 SP ACER, 5/16 6 4 050141 1 SCREW , 10-32 X 1/4 RH SLOT SS 3 5 0312189 COVER, TIMER ENCLOSURE 1 6 0512243 LABEL, ADJUSTMENT 1 7 0712105 TIMER CKT BD.
42 Rinse-aid/Sanitizer Chemical Dispensing Pump - All Models T o Injection Point 1 1 10.
43 1 0503756 MOTOR, INJECT OR PUMP 1 2 0706635 TUBE, ELEMENT ASSEMBL Y 45CC 1 3 0707142 ROTOR, ASSEMBL Y 1 4 0501519 TIE, NYLON 4" 4 5 0505483 LABEL, RINSE AID 1 ---- 0503694 LABEL, SANITIZER 1 6 0306363 TUBE,1/2 ID X1 1-7/8 LG. STIFFENER 1 7 0501869 STRAINER 1 8 0504822 SCREW , 8-32 X 1/2 P AN HD PH S.
44 10 9 8 7 5 6 5 4 3 2 1 Y ellow Rollers Check the squeeze tube every six months for wear . 6 5 5 7 Detergent Chemical Dispensing Pump - All Models.
45 1 0510870-1 GEARMOTOR,108 RPM, 1 15/60/1 1 2 1 14203 PUMP HD KIT , PERIST ALIC 1 3 1 14202 TUBE ASY ,SANT OPRENE,1/4IDX8.25 1 4 0512369 CLAMP , HOSE 2 5 0501519 TIE, NYLON 4" 4 6 0502644 ELBOW , 1/4 HOSE BARB 1 7 0502667 HOSE, 1/4ID X 3/8OD A/R 8 0503695 LABEL, DETERGENT 1 9 0306363 TUBE,1/2IDX1 1-7/8LG.
46 1 2 6A 4 6 9 3 10 3A 3B 8 7 W ASH RINSE 5 5A 401HT ONL Y 401HT ONL Y Control Panel - (201HT/HTN, 201L T , 401HT/HTN, 501L T).
47 1 0512220 SWITCH, ROCKER DPDT , 120V AC, (201HTN, 1 201L T , 401HTN, 501L T , 501HTN 1 0512221 SWITCH, ROCKER DPDT , 250V AC 1 (201HT , 401HT ) 1 2 0512232 LIGHT , INDICA TOR, GREEN LED, 2VDC, (All Models) 1 3 0512218 PUSHBUTTON,GREEN 1 3A 0512217 HOUSING, SWITCH 1 3B 0512216 CONT ACT , MOMENT ARY , N.
48 1 3 4 12 7 8 8 10 10 1 1 5 6 2 9 5 12 13 Control Panel with Digital Display - (501HT , 501HTN).
49 1 0512221 SWITCH, ROCKER DPDT , 250V NEON (501HT) 1 --- 0512220 SWITCH, ROCKER DPDT , 120V NEON (501HTN) 2 0512232 LIGHT , INDICA TOR, GREEN LED, 2VDC 2 3 0512213 SWITCH, PIEZO 2 4 0512226 SWITCH, .
50 Door Assembly - All Models 1 2 3 4 5 6 7 8 9 10 9.
51 1 0312171 HANDLE, DOOR 1 0312172 HANDLE, DOOR, 501HT ONL Y 2 0501408 SCREW , TRUSS SLOT SS 8-32" X 1/4" 2 3 0712164 DOOR WELDED ASSY 1 4 0712162-1 HINGE, RH ASSY 1 5 106026 WASHER, SS 9/3.
52 Panel Assembly - All Models 4 2 3 3 1 4 Prior to S/N W100120006 Beginning with S/N W100120006 and above 5 6 7 6 6 8 9 6 10 1 1 15 16 12 13 14.
53 1 0312193 P ANEL, FRONT (201HT/HTN, 201L T , 501L T) 1 --- 0312193 P ANEL, FRONT (401HT) 1 (Prior to S/N W100120006) 2 0312372 P ANEL, FRONT (501HT , 501HTN) 1 3 100779 SCREW 1/4-20X5/8 TRUSS SS PH.
54 Dish Racks 1 2 1 101273 DISH RACK, FLA T -BOTTOM A/R 2 101285 DISH RACK, PEG A/R Item Part Description Qty . No. No..
55 Electrical Schematics Electrical Schematics Low T emp. 201L T , 501L T (All S/N’s) ............................................................... 56 High T emp. 201HTN, 401HTN, 501HTN (All S/N’s) ......................................... 57 High T emp.
56 Low T emp. - 201L T , 501L T - All S/N’s Low T emperature Undercounter - All S/N’s.
57 High T emp.- All S/N’s - 201HTN, 401HTN, 501HTN All S/N’s 201HTN, 401HTN, 501HTN High T emperature Dishwasher w/o Built-in Booster.
58 High T emp. - 201HT , 401HT - Prior to S/N 14236 Prior to S/N 14236 201HT , 401HT High T emp w/ built-in boosters.
59 Beginning with S/N 14236 - 201HT , 401HT - High T emp. Beginning with S/N W14236 and above 201HT , 401HT High T emperature Dishwasher with built-in booster .
60 LOW VOLTAGE SECTION MAXIMUM OVERCURRENT PROTECTION 40 AMPS MINIMUM CIRCUIT AMPACITY 40 AMPS PROTECTION 30 AMPS MINIMUM CIRCUIT AMPACITY MAXIMUM OVERCURRENT 30 AMPS 2 AND 5 VDC EWL DVC DIAGRAM STATE.
61 Beginning with S/N 14236 and above 501HT High T emperature Digital Display Undercounter Beginning with S/N 14236 - 501HT - High T emp..
62 Timer Chart - All Models TIMER CHART.
63 Basic Service Basic Service Digital T emperature Display Board (501HT Only) ...................................... 64 Digital T emperature Display Codes (501HT Only) ...................................... 65 T imer Board Selector Switch (All Models) .
64 Digiital T emperature Display Board - 501HT Service Bulletin 501HTM3, UH200B April 2008 Part # 0512106 Digital T emperature Display Board The digital temperature display board does not control temperature, and is not interfaced with the timer board.
65 Digiital T emperature Display Board - 501HT W ash tempera.
66 Timer Connection Diagram - All Models T imer Connection Diagram Solid State T imer P/N 0512105 201, 401, 501, UH100, UH170, UH200 January 2009 REBOOT AFTER MODEL SELECTION OUTPUT SANITIzER w ASH MO.
67 All Models - Timer Board T roubleshooting Test/Condition Indication/Cause Recomendation/Solution 1. Run LED is lit Board has power Machine is powered up and Run LED Possible bad start switch, scrub switch Unplug low voltage plug. If Run LED lights up: is not lit or wiring short (does not apply to S.
68 Timer Board Diagnostic T esting Press and release the SCRUB/EXT W ASH switch if equipped If the green indicator light for the scrub switch flashes, the scrub/ext wash switch works ST ART SCRUB POWER PR 4 Before testing, turn the power switch OFF and allow the machine to complete the drain cycle.
An important point after buying a device Moyer Diebel 501HTN (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Moyer Diebel 501HTN yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Moyer Diebel 501HTN - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Moyer Diebel 501HTN you will learn all the available features of the product, as well as information on its operation. The information that you get Moyer Diebel 501HTN will certainly help you make a decision on the purchase.
If you already are a holder of Moyer Diebel 501HTN, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Moyer Diebel 501HTN.
However, one of the most important roles played by the user manual is to help in solving problems with Moyer Diebel 501HTN. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Moyer Diebel 501HTN along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
