Summary of the content on the page No. 1
Simply Engineered Better
Technical Manual
Undercounter
Dishwasher
Model
301HT
High Temperature
with Built-in Booster
Machine Serial No.
June, 2005 Manual P/N 113648 Rev H
P. O. Box 4183
2674 N. Service Road
Winston-Salem, North Carolina 27115-4149
Jordan Station, Ontario, Canada L0R 1S0
336/661-1992 Fax: 336/661-1660
905/562-4195 Fax: 905/562-4618
www.moyerdiebel.com
Summary of the content on the page No. 2
Complete the information below for quick reference. Model Number Serial Number Voltage and Phase Moyer Diebel Parts Supplier Phone Moyer Diebel Service Agency Phone Moyer Diebel Service: Moyer Diebel (USA) Moyer Diebel Limited (Canada) Phone: 1 (336) 661-1556 Phone: 1 (905) 562-4195 1 (800) 858-4477 1 (800) 263-5798 Fax: 1 (336) 661-1660 Fax: 1 (905) 562-4618 Note: When calling to order parts, be sure to have the model number, serial number, voltage and phase of your machine. AFTER S/N 45420 S
Summary of the content on the page No. 3
REVISION RECORD Revision Record Revision Revised Serial Number Comments Date Pages Effectivity 7/3/03 All —— First issue of manual and replacement parts lists 10/2/03 2, 30-31 Inserted pressure reducing valve information (107550). 10/14/03 22-23 Inserted rinse aid dispenser parts breakdown information. 10/14/03 33 Revised part number for solenoid valve. 2/11/04 16 Revised part number for door support. 8/4/04 14-15 Added new hardware for panels. 8/4/04 16-17 Added new hardware for control cabinet
Summary of the content on the page No. 4
REVISION RECORD Revision Record (Cont.’) ii
Summary of the content on the page No. 5
LIMITED WARRANTY Limited Warranty Moyer Diebel, P.O. Box 4183, Winston-Salem, North Carolina 27115, and P. O. Box 301, 2674 North Service Road, Jordan Station, Ontario, 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 in
Summary of the content on the page No. 6
FIV FOREWORD 1. Read the instructions in this manual carefully. It contains important information on installation, operation, and safety. 2. Store this manual carefully for future reference. 3. After removing packing material, check for loose parts in dishracks. 4. Before switching the equipment on, make sure that the model data plate conforms to the electrical and water requirements supplied to this particular machine. 5. Installation should be carried out by qualified personnel according to th
Summary of the content on the page No. 7
TAB LE OF C ONT E NT S TABLE OF CONTENTS PAGE R evision R ecord........................................................................................................... i L imited Warranty ......................................................................................................... iii Forward........................................................................................................................ iv INSTALLATION .......................................................
Summary of the content on the page No. 8
Part 1: INSTALLATION AND MAINTENANCE This Page Intentionally Left Blank vi
Summary of the content on the page No. 9
INSTALLATION GENERAL This manual covers the Moyer Diebel 301 undercounter high temperature dishwashing machine with built-in booster. Liquid detergent and rinse aid dispensing pumps are standard. Even though chemical dispensing settings are preset at the factory for average water conditions, to ensure maximum performance and best results, have your chemical supplier perform a water titration test and adjust dispensing pumps for your specific water conditions. INSTALLATION AND MAINTENANCE The fol
Summary of the content on the page No. 10
INSTALLATION INSTALLATION (CONT.) ELECTRICAL CONNECTIONS NOTE: Leave enough electrical cable behind the machine so that the dishwasher can be pulled forward a minimum of two feet to be serviced. WARNING: Electrical and grounding connections must comply with the National Electrical Code and/or Local Electrical Codes. WARNING: When working on the dishwasher, disconnect the electric service and tag it to indicate work is being done on that circuit. 1. The electrician should compare the electrical s
Summary of the content on the page No. 11
INSTALLATION INSTALLATION (CONT.) PLUMBING CONNECTIONS (CONT.) Drain Connections 1. Drain hose must be supported by bracket provided (shipped inside of machine). 2. The drain hose bracket must be mounted a minimum of 2 feet above the finished drain, either on the rear of the machine or on the wall. 3. The maximum height of the drain from the floor must not exceed 3 feet. 4. Connect the 3/4"I.D. flexible reinforced drain hose to a 1-1/2" wye (Y) drain fitting. Use a 3/4" hose adapter (supplied
Summary of the content on the page No. 12
INSTALLATION INSTALLATION (CONT.) COMPLETING THE INSTALLATION 1. Recheck for and remove any foreign materials from inside the machine. 2. Center the scrap screens over the sump opening 3. After Plumbing and electrical connections are completed, check machine for water leaks by closing the door, then depressing the ON switch. This allows the tank to begin filling and to reach temperature. 4. Open the door and check the water level. The water level should be a two inches above the scrap screen. 5
Summary of the content on the page No. 13
OPERATION OPERATION OPERATION SUMMARY The following is a summary of your model 301HT dishwasher operating cycle: 1. The door must be closed to begin the cycle. 2. Pressing the POWER button begins to fill the wash tank. 3. When the correct water level has been reached the booster heater comes on. Figure 1-Control Panel 4. Press and holding the START button starts the cycle. 5. The pump runs during the wash cycle for approximately 120 seconds. The wash cycle duration is extended if the booster
Summary of the content on the page No. 14
OPERATION OPERATIONS (CONT.) MAINTENANCE 7. Check the rinse temperature during the final rinse. The final rinse must be 82°C/180°F minimum. 8. When the green cycle light turns off, the cycle is complete. 9. Open the door and remove the rack. 10. Repeat steps 4-9 for additional cycles. Machine operation is automatic. 11. Clean the scrap screens after every meal period. During heavy usage, the scrap screens should be cleaned more frequently. CAUTION: Poor machine performance and/or damage to the m
Summary of the content on the page No. 15
MAINTENANCE MAINTENANCE The efficiency and life of your machine in increased be regularly scheduled preventive mainte- nance. A well maintained machine gives better results and service. An investment of a few minutes of daily maintenance will be worthwhile. The best maintenance you can provide is to keep your machine clean. Should poor results occur: first drain, next clean the machine as described below in the Daily-Every 8 Hours procedure, then refill. Intervals shown in the following schedule
Summary of the content on the page No. 16
MAINTENANCE MAINTENANCE (CONT.) CLEANING SCHEDULE (CONT.) As Required 1. Check temperature gauge readings. Replace as necessary. 2. Check chemical supplies and refill as necessary. Weekly 1. Inspect all water lines for leaks and tighten any joints of required. 2. Clean all detergent residue from exterior of machine. 3. Check drain for leaks. 4. Clean any accumulated scale from the heating element. 5. Remove and closely inspect each spray arm for any blockage. 6. Check for any damage to scrap s
Summary of the content on the page No. 17
MAINTENANCE MAINTENANCE (CONT.) CLEANING SCHEDULE (CONT.) DELIMING Your dishwasher should be delimed regularly as required. This will depend on the mineral content of your water. Inspect the machine interior for lime deposits. If deliming is required, a deliming agent should be used for best results. Carefully follow the following procedure to preform deliming: WARNING: Deliming solution or other acids must not come in contact with household bleach (sodium hypochlorite) or any chemicals containi
Summary of the content on the page No. 18
TROUBLESHOOTING TROUBLESHOOTING Before determining any specific cause of a breakdown or abnormal operation of your dishwasher, check that: 1. All switches are turned on. 2. Wash and rinse arms are clean and clear of any debris. 3. Overflow tube is properly positioned. 4. Scrap screen is properly positioned and clean. 5. Thermostats are at the correct settings. 6. Detergent and rinse additive dispensers are adequately filled. 7. All plumbing valves to machine are open. If a problem still exists,
Summary of the content on the page No. 19
TROUBLESHOOTING TROUBLESHOOTING (CONT.) CONDITION CAUSE SOLUTION Insufficient pumped spray Clogged pump intake screen ........... Clean pressure Clogged spray pipe .......................... Clean Scrap screen full .............................. Must be kept clean and in place Low water level in tank ................... Check drain and overflow tube Defective pump seal ........................ Contact service agent Insufficient final rinse or no Clogged rinse nozzle and/or arm .... Clean with pa
Summary of the content on the page No. 20
This Page Intentionally Left Blank 12
