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Hobart ML-110974 manual

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Table of contents for the manual

  • Page 1

    MODEL AM14F , AM14T , & AM14TC DISHW ASHERS MODELS AM14F ML-110975 AM14T ML-110973 AM14TC ML-110974 701 S. RIDGE AVENUE TROY, OHIO 45374-0001 937 332-3000 www.hobartcorp.com FORM 34555 ( Dec. 2000 )[...]

  • Page 2

    – 2 – 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. IMPORT ANT 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 [...]

  • Page 3

    – 3 – TABLE OF CONTENTS GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 UNPACKING . . . . . . . . . . . . . . . . . . .[...]

  • Page 4

    – 4 – Installation, Operation, and Care of MODEL AM14F , AM14T , AM14TC DISHW ASHERS SA VE THESE INSTRUCTIONS GENERAL The AM14T, AM14TC, and AM14F dishwashers are semi-automatic rack-type machines. On model AM14T (Fig. 1) the doors open on opposite sides of the machine allowing the rack to move straight through. Model AM14TC can be located in a[...]

  • Page 5

    – 5 – DO NOT attempt to operate this dishwasher in the chemical sanitizing mode without a properly installed, NSF-listed, chemical sanitizer feeder (not supplied with machine). Contact an authorized detergent representative for information about a chemical sanitizer feeder. The pump motor is rated 2 HP and has thermal overload protection. The f[...]

  • Page 6

    – 6 – On models AM14T and AM14TC, dish tables should be turned down and fitted into the dishwasher (Fig. 2). Use an NSF approved sealer between table and tank lip to prevent leakage. Fasten the tables to the tank lip with truss head screws. Dish tables are not required with model AM14F. High-temperature or gas heat dishwashers will probably req[...]

  • Page 7

    – 7 – WATER CONNECTION A suitable water hammer arrestor should be installed in the water line just ahead of the dishwasher. Without Electric or Gas Booster Water Heater The water supply line is connected to the line strainer (Fig. 1) with 3 / 4 " pipe. A manual shut off valve and pipe union are required. The required incoming water supply [...]

  • Page 8

    – 8 – Static inlet gas pressure should not exceed 14" W.C. for either natural or propane gas. The minimum value is for purpose of input adjustment. The gas valve (Fig. 3) is provided with a pressure tap to measure the gas pressure downstream, which is also the manifold pressure. Gas supply piping must have a sediment trap (supplied by othe[...]

  • Page 9

    – 9 – VENTING REQUIREMENTS — WITH GAS TANK HEAT The Hobart AM14F / AM14T / AM14TC dishwasher equipped for gas tank heat is not provided with a flue collar and is not intended to have the flue directly connected to a ventilation system. However, the products of combustion must be vented to the outside air. The most common method of venting is [...]

  • Page 10

    – 10 – The Rate of air flow required for a vent hood is calculated using the following definitions (Fig. 6): Q = Rate of Air Flow in Cubic Feet Per Minute or [ CFM ] Required for the Hood. A = Area of Hood Opening = (L x W) in Feet 2 D = Clearance Height = Distance in Feet from lower lip of hood to top of dishwasher chamber. P = Perimeter of Ho[...]

  • Page 11

    – 11 – 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. Refer to the wiring diag[...]

  • Page 12

    – 12 – OPTIONAL EQUIPMENT CONNECTIONS — Vent Fan and Gas Booster 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 [...]

  • Page 13

    – 13 – DETERGENT, RINSE AID, OR SANITIZER DISPENSERS — Tubing Installation All detergent, rinse aid, and / or sanitizer dispensers must have all connections sealed against leakage. The dishwasher uses 1.42 gallons per rack at a flow rate of 5.67 gallons per minute at 20 psig flowing pressure (equivalent to a maximum head pressure of 46 feet o[...]

  • Page 14

    – 14 – 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 Y[...]

  • Page 15

    – 15 – Fig. 13 PO W ER O N / O F F FILL CYCLE WASH 1 2 4 6 Power Switch Cycle Switch Wash / Fill Switch PL-52759 Fig. 11 PL-41 178-1 MANUAL / AUTO SWITCH W ASH / RINSE SWITCH POWER SWITCH READOUT / DISPLA Y CYCLE SWITCH OPERA TION PREPARATION Place the pump strainer (when equipped), overflow tube, overflow cover, end cover, slanted strainer, an[...]

  • Page 16

    – 16 – Models AM14T / AM14TC In Automatic mode, the M ANUAL / A UTO switch (Fig. 12) is on A UTOMATIC and the W ASH / R INSE switch is O FF . The wash and rinse cycles begin automatically. The wash cycle begins when the machine doors are closed. The rinse cycle begins when the wash cycle is completed. In Manual mode, the M ANUAL / A UTO switch [...]

  • Page 17

    – 17 – PL-40468-1 AM14T Shown Rinse Nozzle Knurled Disk Rinse Arm Wash Arm PL-40809-1 AM14T Shown Rinse Nozzle Rinse arm W ash arm Knurled Disk – Unscrew and support both arms on release. CLEANING T he machine m ust b e thoroughly cleaned at the end of each working shift or at least daily. N ever use steel wool to clean warewasher surfaces. U[...]

  • Page 18

    – 18 – 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. 15, 16) should turn freely and continue turnin[...]

  • Page 19

    – 19 – TROUBLESHOOTING Manual Reset Button on Pump Motor The motor is equipped with a gray manual reset button near the end cover of the motor. If the pump motor becomes overheated, the thermal overload protector will cause the motor to not operate. If this occurs, press the power switch O FF and allow the motor to cool. Then press the gray man[...]

  • Page 20

    – 20 – FORM 34555 ( Dec. 2000 ) PRINTED IN U.S.A. SYMPTOM POSSIBLE CAUSE Inadequate rinse or rinse water 1. Dirty line strainer causing reduced water flow. Turn off water supply, temperature is too low. remove strainer cap, withdraw and clean screen. Reassemble. 2. Low supply line pressure. 3. Excessive mineral deposits throughout wash and rins[...]