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Hobart ML-130022 manual

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Table of contents for the manual

  • Page 1

    FORM 35309 Rev. B (Jan. 2006) MODEL SR24 SERIES DISHW ASHERS MODELS SR24C ML-130021 SR24H ML-130022 701 S. RIDGE AVENUE TROY, OHIO 45374-0001 937 332-3000 www.hobartcorp.com R MODEL SR24H[...]

  • Page 2

    – 2 – © HOBART CORPORATION, 2006 T ABLE OF CONTENTS General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 In st al la ti on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 3

    – 3 – Installation, Operation and Care of MODEL SR24 SERIES DISHW ASHERS SA VE THESE INSTRUCTIONS GENERAL The SR24 Series Dishwashers are fully automatic, front-loading machines that are equipped with a 1 / 2 H.P. electric motor. Standard equipment includes two standard 20" x 20" racks, dial thermometers for both rinse and wash cycles[...]

  • Page 4

    – 4 – LOCATION Prior to installation, test the electrical service to make sure that it agrees with the specifications on the machine data plate, located on the top of the door. Place the machine in its operating location. Before any connections are made, the machine must be level. Use the tank seam at the top of the sump inside the tank as a re[...]

  • Page 5

    – 5 – Minimum Maximum Machine Type & Rated Supply CKT Overcurrent Specification AMPS Conductor Protective Ampacity Device SR24C 120/60/1 9 15 15 SR24H 120/240 (3W)/60/1 37.6 50 50 * or 120/208 (3W)/60/1 42.0 50 50 * * These are 3-wire systems that require (3) #8 AWG copper wires (90 ° C) including a current carrying neutral. In addition, a[...]

  • Page 6

    – 6 – MODELS SR24C AND SR24H WITH PANELS 23 7 / 8 " Top Panel 1 3 / 16 " 23 15 / 16 " Top Panel Overall Height With Top Panel 35 13 / 16 " min. 36 13 / 16 " max. WARNING : NOT RECOMMENDED FOR INSTALLATION WITHIN WOODEN, PLYWOOD OR OTHER SIMILAR, NONMOISTURE-RESISTANT FRAMEWORK. MACHINE INSTALLATION CONNECTIONS AND DETAI[...]

  • Page 7

    – 7 – PLUMBING CONNECTIONS WARNING : PLUMBING CONNECTIONS MUST COMPLY WITH APPLICABLE SANITARY, SAFETY AND PLUMBING CODES. WATER SUPPLY The water supply must be within the recommended hardness range of 4 to 6 grains per gallon. Lower hardness can cause corrosion; higher hardness can cause formation of lime scale. The plumber who connects this m[...]

  • Page 8

    – 8 – ELECTRICAL CONNECTIONS WARNING : ELECTRICAL AND GROUNDING CONNECTIONS MUST COMPLY WITH THE APPLICABLE PORTION OF THE NATIONAL ELECTRICAL CODE AND/OR OTHER LOCAL ELECTRICAL CODES. WARNING : DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AND FOLLOW LOCKOUT / TAGOUT PROCEDURES. BRANCH CIRCUIT SIZE AND PROTECTION (DUAL ELEMENT TIME-DELAY FUSE[...]

  • Page 9

    – 9 – INITIAL FILLING (MODEL SR24H ONLY) After electrical and plumbing connections have been made make sure the water service valve is open and add a cup of water to the sump to help lubricate the seal. Close the door and turn the On-Off switch (Fig. 3 on page 10) to the on position. Cycle the machine through three wash cycles to charge the det[...]

  • Page 10

    – 10 – OPERA TION Caution: Items such as pewter, aluminum and silver are attacked by sodium hypochlorite (bleach). Therefore, the Model SR24C Chemical Sanitizing unit should not be used to wash such items. PREPARATION Check to make sure that the strainer is in place and free of debris. Check both wash arms to be sure that they spin freely and a[...]

  • Page 11

    – 11 – Use only commercial-grade detergents recommended by your chemical professional. Do not use detergents formulated for residential dishwashers. Chemical dispensing pumps (if so equipped) are factory set to provide proper concentration of each chemical. If adjustments are required, contact your local Hobart Service Office. When the door is [...]

  • Page 12

    – 12 – CLEANING This machine must be cleaned at least once each working day. 1. Turn the On-Off switch to the off position (Figs. 2 and 3 on page 10). 2. Open the door and remove the wash arms and the strainer assembly (Fig.5). 3. To remove the lower wash arm, remove the retaining screw (Fig. 5), grasp the wash arm at the center (Fig. 6) and pu[...]

  • Page 13

    – 13 – MAINTENANCE DELIMING The dishwasher should be delimed on a regular basis as required. The frequency will depend on the mineral content of the supply water. Inspect the machine interior for lime deposits. If deliming is necessary, a deliming agent (such as Lime Away or LSR) should be used for best results. Depending on the model of your m[...]

  • Page 14

    – 14 – DELIMING MODEL SR24H (HOT WATER SANITIZING MODEL) Delime as follows: 1. Remove rack from machine. 2. Close the door. 3. Allow machine to fill for 10 to 15 seconds. 4. Partially open the door and wait 5 seconds. 5. Open door; add deliming agent (carefully follow supplier's instructions). NOTE : The sump holds 1.4 gallons of water. 6.[...]

  • Page 15

    – 15 – TROUBLESHOOTING This section outlines various symptoms and possible causes that may be encountered if abnormal machine operation occurs. If symptoms persist after possible causes have been checked, service may be required. SYMPTOM POSSIBLE CAUSE Machine does not operate. 1. On-Off switch is in the off position. 2. Blown fuse or circuit b[...]

  • Page 16

    – 16 – CHEMICAL SENSING MODULE — OPERATION AND START-UP Operate the chemical dispensing pumps (refer to page 11) to make sure that liquid chemical is present in the tubing going through the sensors in the chemical sensing module. Once the dishwasher is switched on, LED indicator lights are lit continuously to indicate that liquid chemical is [...]