MODEL AM14 & AM14C DISHWASHERS MODELS AM14 AM14C ML-110976 ML-110977 701 S. RIDGE AVENUE TROY, OHIO 45374-0001 937 332-3000 www.hobartcorp.com FORM 34554 (Dec.
POST IN A PROMINENT LOCATION THE INSTRUCTIONS TO BE FOLLOWED IN THE EVENT THE SMELL OF GAS IS DETECTED. THIS INFORMATION CAN BE OBTAINED FROM THE LOCAL GAS SUPPLIER. IMPORTANT IN THE EVENT A GAS ODOR IS DETECTED, SHUT DOWN UNIT(S) AT MAIN SHUTOFF VALVE AND CONTACT THE LOCAL GAS COMPANY OR GAS SUPPLIER FOR SERVICE. FOR YOUR SAFETY DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS OR LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE.
TABLE OF CONTENTS GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 UNPACKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 INSTALLATION CODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation, Operation, and Care of MODEL AM14 & AM14C DISHWASHERS SAVE THESE INSTRUCTIONS GENERAL The AM14 dishwashers are semi-automatic rack-type machines. On model AM14, the doors open on opposite sides of the machine allowing the rack to move straight through. Model AM14C can be located in a corner; adjacent doors open so the rack moves in and out at a 90° angle.
INSTALLATION UNPACKING Immediately after unpacking the dishwasher, check for possible shipping damage. If this machine is found to be damaged, save the packaging material and contact the carrier within 15 days of delivery. Prior to installation, test the electrical service to make sure it agrees with the specifications on the machine data plate which includes the optional electric booster, if equipped. The dishwasher data plate is located on the side of the control box.
WATER REQUIREMENTS Proper water quality can improve ware washing performance by reducing spotting, lowering chemical supply costs, enhancing effectiveness of labor, and extending equipment life. Local water conditions vary from one location to another. The recommended proper water treatment for effective and efficient use of this equipment will also vary depending on the local water conditions. Ask your municipal water supplier for details about local water specifics prior to installation.
With Electric Booster Water Heater The water supply line is connected to the flow control ahead of the line strainer below the booster with 3 /4" pipe. A manual shut off valve and pipe union are required. The water supply should have a minimum temperature of 110°F, and a flowing pressure of 15 – 25 psig at the pressure gauge on top of the machine. If the flowing pressure exceeds 25 psig, a pressure reducing valve (not supplied) must be installed in the water supply line.
The dishwasher must be installed so that the flow of combustion and ventilation air will not be obstructed. Adequate clearances for air openings into the combustion chamber must be provided. Make sure there is an adequate supply of make-up air in the room to allow for combustion of the gas at the burner(s). Keep the appliance area free and clear from all combustible substances. Do not obstruct the flow of combustion and ventilation air.
➤ ➤ LENGTH ➤ RATE OF EXHAUST FLOW CALCULATIONS ➤ CLEARANCE HEIGHT ➤ NOTE: Any listed and labeled factory-built commercial exhaust hood tested in accordance with UL Standard 710 by a nationally recognized testing laboratory, should be installed according to the terms of its listing and the manufacturer's installation instructions. Based on the 1996 International Mechanical Code. The Rate of air flow required for a vent hood is calculated using the following definitions (Fig.
ELECTRICAL CONNECTIONS WARNING: ELECTRICAL AND GROUNDING CONNECTIONS MUST COMPLY WITH THE APPLICABLE PORTIONS OF THE NATIONAL ELECTRICAL CODE AND/OR OTHER LOCAL ELECTRICAL CODES. WARNING: DISCONNECT ELECTRICAL POWER SUPPLY AND PLACE A TAG AT THE DISCONNECT SWITCH TO INDICATE THAT YOU ARE WORKING ON THE CIRCUIT. Dishwasher Refer to the wiring diagram attached inside the control box and to the machine data plate for service size requirements when connecting the dishwasher.
ELECTRICAL DATA Model Volts / Hz / Ph Tank Heat Minimum Circuit Ampacity Maximum Protective Device AMPS Dishwasher ONLY Electric 50 Gas 15 Optional 13 KW Electric Booster ONLY 208 - 240 / 60 / 1 208 / 60 / 1 Electric 80 240 / 60 / 1 Electric 80 AM14 Electric 30 Gas 15 208 - 240 / 60 / 3 AM14C 208 / 60 / 3 Electric 50 240 / 60 / 3 Electric 50 Electric 15 Gas 15 25 480 / 60 / 3 Compiled in accordance with the national electrical code, ANSI / NFPA 70 (latest edition).
DETERGENT, RINSE AID, OR SANITIZER DISPENSERS — Tubing Installation Detergent, rinse aid, and / or sanitizer dispensers (not provided by Hobart) must have all connections sealed against leakage. The dishwasher uses 1.2 gallons per rack at a flow rate of 8 gallons per minute at 20 psig flowing pressure (equivalent to a maximum head pressure of 46 feet of water). This information is used when setting the detergent, rinse aid, or sanitizer pumps.
OPTIONAL EQUIPMENT CONNECTIONS — Detergent, Rinse Aid, Sanitizer Dispensers WARNING: ELECTRICAL AND GROUNDING CONNECTIONS MUST COMPLY WITH THE APPLICABLE PORTIONS OF THE NATIONAL ELECTRICAL CODE AND/OR OTHER LOCAL ELECTRICAL CODES. WARNING: DISCONNECT ELECTRICAL POWER SUPPLY AND PLACE A TAG AT THE DISCONNECT SWITCH TO INDICATE THAT YOU ARE WORKING ON THE CIRCUIT. Detergent Dispenser (Fig. 10) Terminals DPS1 and DPS2 are supplied with controlled machine line voltage.
OPERATION PREPARATION Place the pump strainer (when equipped), overflow tube, overflow cover, end cover, slanted strainer, and the strainer bucket in their respective positions, (Fig. 11). Fig. 11 An automatic detergent dispenser is recommended. Closely follow supplier's instructions. If no automatic dispenser is used, scatter the initial charge of detergent on the slanted strainer. Replenish as needed. Close the doors which will automatically close the drain.
DISHWASHING Scrape the dishes to remove large particles of food and debris. Never use steel wool on ware to be loaded into the dishmachine. Fig. 13 Stack the dishes in a rack. Do not stack dishes one on top of another as water must have free access to all sides of every dish. Stand plates and dishes up edgewise in a peg-type rack (Fig. 13). Cups, glasses, and bowls should be inverted in an open-type or compartment type rack (Fig. 13).
CLEANING The machine must be thoroughly cleaned at the end of each working shift or at least daily. Never use steel wool to clean warewasher surfaces. Use only products formulated to be safe on stainless steel. Turn off the power switch. Open the machine doors. Clean off the dish tables into the dishwasher. Drain the machine by pulling the drain lever (Fig. 11). Remove and empty the slanted strainer and strainer bucket. Wash and rinse them thoroughly. Raise the overflow cover and remove the overflow tube.
DOs AND DON'Ts FOR YOUR NEW HOBART WAREWASHER DO assure proper water hardness (4 – 6 grains per gallon is recommended). DO pre-scrap dishes thoroughly. DO use only detergents recommended by your chemical professional. DO at the end of the day, thoroughly cleanse the machine, rinse, and dry (leave doors open). DO closely follow your chemical professional's prescribed deliming schedule. DO use only products formulated to be safe on stainless steel.
MAINTENANCE WARNING: DISCONNECT ELECTRICAL POWER SUPPLY (BOTH DISHWASHER AND BOOSTER IF APPLICABLE) AND PLACE A TAG(S) AT THE DISCONNECT SWITCH(ES) TO INDICATE THE CIRCUIT(S) ARE BEING WORKED ON BEFORE BEGINNING ANY MAINTENANCE PROCEDURE. Wash Arms Upper and lower wash and rinse arms (Figs. 14, 15) should turn freely and continue turning for a few seconds after being whirled by hand.
TROUBLESHOOTING Manual Reset Button on Pump Motors MOTOR ENDBELL MOTOR RESET BUTTON The motor is equipped with a gray manual reset button (Fig. 16) near the end bell of the motor opposite of the motor junction box. If the pump motor becomes overheated, the thermal overload protector will cause the motor to not operate. If this occurs, press the power switch OFF and allow the motor overload protector to cool for a few minutes.
SYMPTOM POSSIBLE CAUSE Inadequate rinse or rinse water temperature too low. 1. Dirty line strainer causing reduced water flow. Turn off water supply, remove strainer cap, withdraw and clean screen. Reassemble. 2. Low supply line pressure. 3. Excessive mineral deposits throughout wash and rinse system. Deliming may be necessary. 4. Incoming water temperature to booster (if applicable) below 110°F. Extend wash cycle from 40 to 60 seconds. 1. Foreign material preventing proper valve operation.
