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336/661-1992 Fax: 336/661-1660 Technical Manual Door-Type Dishwasher Machine Serial No. Manual 2674 N. Service Road Jordan Station, Ontario, Canada LOR 1SO 905/562-4195 Moyer Diebel Model MH-60M2 High Temperature with Built-in Booster MH-6NM2 High Temperature MH-6LM2 Low Temperature 0509506 Fax: 905/562-4618...
SW.] The warranty registration card must be returned to Champion/Moyer Diebel within ten (10) days after installation. If war- ranty card is not returned to Champion/Moyer Diebel within such period, the warranty will expire after one year from the date of shipment.
For your protection, factory authorized parts should always be used for repairs. Replacement parts may be ordered directly from your Moyer Diebel authorized parts distributor or authorized service agency. ordering parts, please supply the model num- ber, serial number, voltage, and phase of your machine, the part number, part descriptions and quantity.
GENERAL Model Numbers MH-60, MH-6N, MH-6L The MH-60 model is a high temperature (180°F/82°C rinse) sanitizing model with booster. The MH-6N model is a high temperature (180°F/82°C rinse) sanitizing model without booster. The MH-6L is a low temperature (Min. 120°F/ 49°C-140°F/60°C Optimum) sanitizing model for use with a sodium hypochlorite (Chlorine) based sanitizer at a minimum concentration of...
1. Immediately after unpacking the machine, inspect for any shipping damage. If damage is found, save the packing material and contact the carrier immediately. 2. Remove the dishwasher from the skid. Move the machine to its permanent location. NOTE: Refer to: To change from Straight-through...
WALL POWER ON SWITCH FRONT Do not place the dishwasher closer than 5-1/4" (133mm) to any wall. Placement for Corner Operation Refer to Fig. 3a-3b and perform the steps below. 1. Remove the front rack guide (A). Discard the square spacers.
WARNING: Electrical and grounding connections must comply with all applicable Electrical Codes. WARNING: When working on the dishwasher, discon- nect the electric service and place a tag at the disconnect switch to indicate work is being done on that circuit.
The main terminal block is located on the side of the front right post of the dishwasher. (Cont.) Hinged Control Panel Figure 5 Electrical Power Connection...
1. All MH series dishwashers require a single, hot water supply. The hot water connection to all MH series dishwashers is 3/4" NPT. The connection is made from underneath the dishwasher. The following minimum water temperatures are recommended: MH-60 with built-in 40° rise electric booster (Minimum 140°F/60°C) (Min./Max.
1-1/2" O.D. hose connection point. 2. Drain height for all models must not exceed 11" (280mm) above floor level. 3. The drain connection is made to the dishwasher from underneath the machine through an access hole in the machine base. Ventilation...
INSTALLATION Chemical Connections NOTE: Consult a qualified chemical supplier for your chemical needs. Refer to Fig. 10 1. A chemical signal terminal block is supplied for chemical dispensing equipment. 2. The terminal block is located below the cycle timer on the left side of the hinged control panel.
Chemical Connections (Cont.) Refer to Fig. 12 5. A 1/2" NPT detergent probe injection point is provided at the rear of the dishwasher. 6. Detergent may be added manually if your dishwasher is not equipped with dispensing equipment. Consult your chemical supplier for recommended amounts.
INITIAL START-UP Complete the installation After plumbing and electrical connections are made, follow the steps below to complete the installation of your dishwasher. 1. Remove the white protective covering from the exterior of the machine. 2. Remove any foreign material from inside the machine.
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Check Wash Water Temperature The wash tank and booster tank heaters will begin to heat the water in the dishwasher. Wait approximately 10 minutes for the wash tank water to reach operating temperature. The temperature should be a minimum of 150°F/66°C for (MH-60, MH-6N).
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INITIAL START-UP INITIAL START-UP Fully close the dishwasher doors. The dishwasher will begin the automatic cycle. Opening the doors anytime during the cycle will stop the dishwasher. Closing the doors will resume the automatic cycle where it left off. The cycle times are listed below:...
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The final rinse water temperature gauge is located in the final rinse piping at the top of the dishwasher. The final rinse water tempera- ture should be a minimum of 180°F/82°C for (MH-60, MH-6N). The optimum final rinse temperature for (MH-60, MH-6N) is 180-195°F/82-91°C.
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Check all the plumbing for leaks. Also, check the drain plumbing for leaks and be sure that the drain will handle the drain water flow from the dishwasher. After the drain and the plumbing connections are checked, turn off the power to the dishwasher. Drain the dishwasher Make sure the dishwasher power switch is turned off.
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Be sure the drain-overflow rubber stopper is secure on the drain-overflow assembly. Remove the scrap screens and check the drain located in the bottom of the dishwasher wash tank. Make sure that the building drain handles the water flow exiting the dishwasher.
Cups and bowls should be placed upside down in the flat rack. Silverware should be spread evenly in a single layer in the flat rack. 4. In cycle light illuminates as the dishwasher begins a 60 second automatic cycle. The cycle times are listed below:...
Intervals should be shortened whenever your machine is faced with abnormal working conditions, hard water, or multiple shift operations. CLEANING SCHEDULE Every 2 Hours or After Each Meal Period 1. Drain the dishwasher. 2. Flush interior with fresh water. 3. Clean scrap screens and pump intake screen. 4. Clean spray arm nozzles.
DELIMING Your dishwasher should be delimed regularly depending on the mineral content of your water. Inspect the machine interior for mineral deposits and use a deliming solution for the best cleaning results. NOTE: Consult your chemical supplier for an appropriate deliming solution.
TROUBLESHOOTING Perform the seven checks listed below in the event that your dishwasher does not operate as expected. 1. All switches are ON 2. Drain-overflow assemby is in place and seated 3. Wash and rinse nozzles are clean 4. Wash and rinse pipe assemblies are installed correctly 5.
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TROUBLESHOOTING TROUBLESHOOTING CONDITION Insufficient pumped Clogged pump intake screen ... spray pressure Clogged spray pipe ... Scrap screen full ... Low water level in tank ... Pump motor rotation incorrect ... Defective pump seal ... Insufficient final rinse Faulty pressure reducing valve ... or no final rinse Improper setting on pressure ...
Troubleshooting Schematics Moyer Diebel places an electrical schematic in the control cabinet of every machine before it is shipped. Schematics are included at the back of this manual as well. Be aware that these schemat- ics include options that may not apply to your machine. Options are enclosed in dashed lines with the words (IF USED) next to them on the schematic.
Booster heater circuits (MH-60 only) are not fused. To Replace a fuse: Turn the dishwasher main power switch off. Disconnect power to the machine at the main servicedisconnect switch. Replace the fuse. If the fuse blows again, DO NOT INCREASE THE FUSE SIZE.
START Fill Timer — Refer to Fig. 18. The fill timer controls the dishwasher’s 90-second fill operation. The timer consists of a timer motor, one micro-switch, and one non-adjustable plastic cam. The fill timer operates during initial fill. FILL TIMER TIMER CYCLE 60-SEC.
BASIC SERVICE ELECTRICAL SERVICE (Cont.) Heater Element Wiring – Booster Tank and Wash Tank Heater Elements Refer to the illustrations and follow the steps below to properly install terminal jumpers and to make line power connections to a replacement element. Step 1.
ELECTRICAL SERVICE (Cont.) Motor Connections — 1. Models MH-60, MH-6N, and MH-6L are available in either single phase or 3 phase voltages. 2. Motor rotation was set at the factory. For three phase machines, reversing the motor direction is done in the control cabinet by reversing the wires L1 and L2 on the disconnect side of the main electrical connection block.
16. Reinstall spacers, impeller, and new flange gasket. Reinstall bolts. 17. Reinstall the pump/motor assembly and reconnect the pump hoses. 18. Fill the dishwasher with water. 19. Check motor rotation by bump starting motor. Correct motor shaft rotation is clockwise when viewing motor from the rear.
DOOR ASSEMBLIES AND PANELS Fig. 22 Part Item No. 0309167 Lift bar, door ... 0509274 Nut, acorn (5/16-18 SST) ... 104002 Bolt (5/16-18 X 1-1/2) ... 0509264 Bushing, side door ... 0709405 Door, side ... 0501412 Screw (10-32 X 3/8 Truss hd) ... 0308704 Guard, splash ...
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REPLACEMENT PARTS Figure 23 - Door Safety Switch and Instrument Panel...
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