MODEL AM14 & AM14C DISHWASHERS MODELS AM14 AM14C ML-32614 ML-32615 701 S. RIDGE AVENUE TROY, OHIO 45374-0001 937 332-3000 www.hobartcorp.com FORM 34123 Rev. C (Oct.
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.
Available as an optional accessory is a frame-mounted 10KW electric booster to maintain a minimum final rinse temperature of 180°F. Also available as an optional accessory is the model IB57 Infrared Booster Gas Water Heater. Also available are circuit breaker(s) and/or single point electrical connection options. INSTALLATION UNPACKING Immediately after unpacking the dishwasher, check for possible shipping damage.
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 booster (Fig. 6) with 3/4" pipe. The water supply should have a minimum temperature of 120°F – 140°F, and a flowing pressure of 15 – 25 psig at the pressure gauge tee beside the solenoid valve. If the flowing pressure exceeds 25 psig, a pressure reducing valve (not supplied) must be installed in the water supply line. CAUTION: The water pressure regulator must have a relief by-pass.
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.
➤ 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. ➤ LENGTH ➤ ➤ Based on the 1996 International Mechanical Code.
STEAM HEAT (When Specified) A 3/4" union connection for the steam supply line is located at the lower right side of the machine. The steam supply must have a flowing pressure of 15 – 20 psig. Steam flow is controlled by a solenoid valve, as well as a mechanical ball valve. The ball valve should be closed when the dishwasher is not in use.
Electric Booster Water Heater Option NOTE: Electric Booster electrical connection will be separate from the dishwasher electrical connection unless single point electrical connection is supplied. If circuit breaker option is provided, the electric supply or supplies are connected to the circuit breaker box on top of the dishwasher. Refer to Electrical Data, page 12.
ELECTRICAL DATA Model Volts / Hz / Ph 100 - 120 / 60 / 1 200 - 230 / 60 / 1 208 / 60 / 1 240 / 60 / 1 AM14 / AM14C 200 - 230 / 60 / 3 208 / 60 / 3 240 / 60 / 3 400 - 460 / 60 / 3 480 / 60 / 3 Tank Heat Minimum Circuit Ampacity Maximum Protective Device AMPS Dishwasher with Dishwasher ONLY Electric Booster Option Electric Booster ONLY with or without and Single Point with or without Circuit Breaker Electrical Connection Circuit Breaker Option Option with or without Circuit Breaker Option Electr
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. 7). Fig. 7 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. 9 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. 9). Cups, glasses, and bowls should be inverted in an open-type or compartment type rack (Fig. 9).
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. If the machine has steam heat, close the manually operated steam (ball) valve. Open the machine doors. Clean off the dish tables into the dishwasher. Drain the machine by pulling the drain lever (Fig. 7). Remove and empty the slanted strainer and strainer bucket.
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. 11, 12) should turn freely and continue turning for a few seconds after being whirled by hand.
To avoid a service call, check symptoms and related possible causes. If machine still does not operate properly, contact Service. SYMPTOM POSSIBLE CAUSE No machine operation. 1. Blown fuse or tripped circuit breaker at power supply. 2. Machine control is in MANUAL mode. 3. Check tank water level. 1. Insufficient wash water due to drain obstruction preventing proper drain closing. 2. Worn or torn drain "O" Ring allowing wash water to drain. 3. Loss of water pressure due to pump obstruction.
SYMPTOM POSSIBLE CAUSE Inadequate rinse. 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 120°F. Extend wash cycle from 40 to 60 seconds. 1. Foreign material preventing proper valve operation.
SERVICE Contact your local Hobart-authorized service office for any repairs or adjustments needed on this equipment. If a gas orifice fitting is to be adjusted or replaced, have it serviced by qualified Hobartauthorized service personnel. Long-term service contracts are available on this and other Hobart products. FORM 34123 Rev. C (Oct. 2000) – 20 – PRINTED IN U.S.A.
