CMA Dishmachines EST66 L.T. Installation & Operation Manual

CMA Dishmachines EST66 L.T. Installation & Operation Manual

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Rev.1.01A
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  • Page 1 Rev.1.01A www.cmadishmachines.com...
  • Page 2: Table Of Contents

    Table of Contents EST-66 SPECIFICATIONS....................2 1.1. EST- 66............................2 GETTING STARTED .................... 3 2.1. Introduction to EST -66........................3 2.2. Receiving and Installation ......................4 2.2.1. Electrical ..........................5 2.2.2. Plumbing*..........................5 2.2.3. Installation Notes........................5 2.2.4. Optional Table Limit Switch....................7 2.2.5.
  • Page 3: Specifications

    1. Specifications 1.1. EST- 66 EST-66 EST-66 L.T. H.T. WATER CONSUMPTION PER RACK (FINAL RINSE) .49 GAL. .49GAL. PER HOUR (FINAL RINSE) 119 GAL. 119 GAL. CONVEYOR SPEED FEET PER MINUTE 6.75 6.75 OPERATING CAPACITY RACKS PER HOUR (NSF rated) OPERATING TEMPERATURE WASH RECOMMENDED 140°...
  • Page 4: Est- 66

    Getting Started 2. Getting Started 2.1. Introduction to EST -66 The EST is designed to give maximum cleaning in 66 inches. It represents the cleaning power of machines twice its length. The curtains incorporated in the machine minimize transfer from tank to tank during the wash and sanitizing procedures.
  • Page 5: Receiving And Installation

    Getting Started 2.2. Receiving and Installation When you receive your new EST-66, complete the assembly by installing the scrap tray assembly with its overflow chute, the two wrapper shields and the curtain rods, which are shipped inside the machine. After the box has been removed from the machine, remove the left and right stainless steel wrapper shields and bolt them in place with the nuts and bolts provided.
  • Page 6: Electrical

    Getting Started 2.2.1. Electrical A 3-phase 208-240 volt AC, 60 Hz dedicated circuit should be used to supply electrical energy to the EST-44 dishwasher (see specification sheet page 2). Connect the wire that has the highest voltage (stinger lead) to the main contactor’s power terminal L2. Power lead wires (L1, L2 and L3) used for the EST-44 at installation must comply with all local and State electrical codes.
  • Page 7 Getting Started P/N 13505.14 205 RACKS/HOUR 243 RACKS/HOUR Figure 2.2.3b 4. On a 3-phase machine the water pump motors are also 3-phase and, depending on which terminal each phase is connected to, the motor can rotate in either direction. Check the direction of rotation by removing the dust cap on the back of the motor. The motors must turn clockwise looking at the shaft from the back of each motor.
  • Page 8: Optional Table Limit Switch

    Getting Started 2.2.4. Optional Table Limit Switch (Please see section 5 for Installation Instructions) Page MODEL EST-66 Service & Parts Manual Rev. 1 .01A...
  • Page 9: Scrap Tray Assembly Installation

    Getting Started 2.2.5. Scrap Tray Assembly Installation The scrap tray assembly and overflow chute, which came packaged inside the machine, can easily be installed by executing the following steps: below Figure 2.2.5 illustrates the assembly as it would appear for a Left-to-Right machine – a Right-to- Left machine would simply be the mirror image.
  • Page 10: Pump Impeller Note

    Getting Started 2.2.6. Pump Impeller Note Figure 2.2.5 Installation: When installing the water pump impeller the Nylon Lock Nut indicated by the arrow must be in place to prevent the impeller from spinning off of the shaft Figure 2.2.5 and damaging the motor. Removal: The Nylon Lock Nut indicated by the arrow in must be removed before...
  • Page 11: Optional Hood Adapter (Set Of Two)

    Getting Started 2.2.7. Optional Hood Adapter (Set of Two) An optional Hood Adapter set (P/N 13901.82) is available. The dimensions for proper installation are given below. Caution: open the damper just slightly to prevent heat loss . Warning: CMA vent hood adapters have been engineered to retain the temperature within the dishmachine.
  • Page 12: Field Installed Accessories

    Getting Started 2.2.8. Field Installed Accessories Qualified personnel must perform installation of the accessory chemical pumps. 2.2.8.1. Chemical Dispensers 1. Check valves should be installed directly at the mixing chamber coupling. There are two 1/8” FPT mounting holes provided, which will position the check valves parallel to the machine avoiding any chemicals from dripping onto the stainless steel should a leak develop.
  • Page 13 Getting Started Page MODEL EST-66 Service & Parts Manual Rev. 1 .01A...
  • Page 14: Safety Tips For The Est-66

    Getting Started 2.3. Safety Tips for the EST-66 Always turn off the circuit breaker at the wall when working on this DANGER: dishmachine. Even with the machine’s power switch off there is a live connection coming to the switch, so turn off the circuit breaker as well. Do not get in the path of the conveyor rocker arm or the conveyor’s moving CAUTION: bar.
  • Page 15: Operation

    Operation 3. Operation 3.1. Initial Setup 3.1.1. Rinse Pressure Regulator The CMA-44 requires a supply water pressure of 24 PSI minimum. The supply water regulator then reduces the pressure. Use the following procedure to adjust the rinse pressure to 20 PSI: 1.
  • Page 16: Beginning Operation

    Operation 3.2. Beginning Operation To run the dishmachine, perform the following steps: 1. Close both drains (valve handles in vertical position). CLOSE CLOSE 2. Turn on the power to the dishmachine. The machine will automatically fill itself. The float when sensing adequate water level energizes an ice cube relay, which will allow power to go to the heaters while the door is closed and the water temperature is below the thermostat setting.
  • Page 17: Chemical Dispensing

    Operation 5. At the end of the shift and after heavy periods of accumulation, clean the three strainer trays inside the machine. STRAINER TRAY Also, at the end of each shift, remove and clean the six spray arms. Then reinstall them into the machine. SPRAY ARM Also, when water becomes heavily soiled, drain the tanks and refill the machine.
  • Page 18: Low Temperature Applications

    Operation 3.2.1.1. Low Temperature Applications dispenser manufacturing operational instructions sanitizer adjustments for Low Temp applications. The sanitizing pump operates when the fresh water enters the machine during final rinse. The water is treated at 50 PPM (parts per million). The pressure regulator is adjusted to 20-PSI.
  • Page 19 Operation out). Check that the float switch is working properly (this will also cause the heater contactor to pull in and drop out when actuated). 6. Replace all the strainer trays into their proper position and fill the machine. 7. Place a rack into the machine and observe the spray pattern of the pre-wash, the wash, and the final rinse.
  • Page 20: Trouble Shooting

    Operation 3.4. Trouble Shooting PROBLEM LIKELY CAUSE SOLUTION Bad motor or capacitor Replace defective motor Pre-wash/power wash Faulty contactor Replace contactor motor inoperative Machine inoperative Fuse is burned out Replace fuse Table limit switch Remove dish rack at switch Defective door reed switch Replace reed switch Defective start reed switch Replace reed switch...
  • Page 21: Est-66 Customer Notice

    Operation 4. EST-66 Customer Notice Page MODEL EST-66 Installation and Operation Manual Rev. 1 .01A...
  • Page 22 Operation TIPS TO SAVE A SERVICE CHARGE If the Lessee of this equipment initiates a service call and it is subsequently determined that the problem does not relate to part failure or out of chemicals, there will be a minimum service charge for a service person to respond.
  • Page 23: Electrical Diagram For 230V Est-66

    Operation 5. Electrical Diagram For 230V EST-66 Page MODEL EST-66 Installation and Operation Manual Rev. 1 .01A...
  • Page 24: Electrical Diagram For E-Temp Heater Only

    Operation 6. Electrical Diagram For E-Temp Heater Only Page MODEL EST-66 Installation and Operation Manual Rev. 1 .01A...
  • Page 25: Electrical Diagram For 480V Est-66

    Operation 7. Electrical Diagram For 480V EST-66 Page MODEL EST-66 Installation and Operation Manual Rev. 1 .01A...

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