CL64-ADV

Overview

The Hobart CL64-ADV is a CL-Series conveyor dishwasher. The available product listing identifies this model as a two-tank machine with Automatic Soil Removal (ASR). The CL-Series manual covers the CL-ADV configuration and its installation, operation and troubleshooting. The documentation provided here does not state a rack-per-hour rating, overall dimensions, shipping weight or a complete electrical specification for the CL64-ADV, so those details should be confirmed for the exact machine configuration.

CL-ADV models have a factory-installed Drain Water Tempering (DWT) kit. Unlike CL-BAS models described in the manual, CL-ADV models require both hot- and cold-water connections. If the machine is equipped with gas tank heat, the manual lists gas requirements for the CL64 model; those requirements are included below as conditional configuration information.

Key Features

• Conveyor operation: Dishes travel through the dishwasher on a conveyor.
• Two-tank configuration: The available listing identifies the CL64-ADV as a two-tank model.
• Automatic Soil Removal: ASR is identified as a feature of the CL64-ADV.
• Drain water tempering: The CL-Series manual states that DWT is factory installed on CL-ADV models.
• Service diagnostics: The manual provides CL-Series error messages and troubleshooting guidance, including instructions to contact Hobart Service for specified faults.

Specifications

• Model: Hobart CL64-ADV.
• Product type: CL-Series conveyor dishwasher.
• Tanks: Two, as stated in the available CL64-ADV listing.
• Soil removal: Automatic Soil Removal (ASR).
• Drain water tempering: Factory installed on CL-ADV models.
• Water connections: Hot and cold water supplies are required for CL-ADV models.
• Incoming water temperature with the listed built-in booster: For CL-ADV models in the 64/86 size with a 24 kW built-in booster, the manual lists cold water at 55–80 °F and hot water at a minimum of 110 °F.
• Incoming water pressure: The manual's fill-error troubleshooting instructions specify verifying water pressure of 20–65 psi.
• Incoming water line: The CL-Series manual specifies a minimum 1/2-inch inside diameter for the incoming water line.
• Drain connection: 2-inch NPT pipe; the common tank drain can be connected at either end, with a plug provided for the opposite end.
• Grease trap, if required by code: Minimum flow capacity of 38 gallons per minute.
• Conditional gas heat information for CL64: The manual lists natural or propane gas, 156,000 BTU/hr, and a 3/4-inch NPT connection. Flowing gas pressure is listed as 3.5–7 inches W.C. for natural gas and 9–11 inches W.C. for propane; listed manifold pressures are 3.2 inches W.C. for natural gas and 8.2 inches W.C. for propane. Static incoming line pressure must not exceed 14.0 inches W.C. for either gas. These figures apply only when the machine is equipped with gas tank heat.

Installation & Requirements

Water and drain

CL-ADV models require separate hot- and cold-water supplies. For the CL-ADV 64/86 configuration with a 24 kW built-in booster, the manual specifies cold water at 55–80 °F and hot water at a minimum of 110 °F. It specifies an incoming water line with a minimum 1/2-inch inside diameter. If flowing water pressure exceeds 50 psig, the manual says a pressure regulator with a relief bypass must be used; it warns that an improper regulator may damage the unit. The fill troubleshooting section also directs operators to verify water pressure of 20–65 psi when investigating a tank-fill error.

The common tank drain needs one connection to the floor drain and may be connected at either end of the drain body. Use 2-inch NPT pipe through a trap to the sewer. If a grease trap is required by code, the manual specifies a minimum flow capacity of 38 gallons per minute. On CL-ADV and CL-DWR models, factory drain plumbing may need to be relocated to the opposite side of the drain body to suit the connection. The manual states that the drain water tempering kit is factory installed on CL-ADV models.

Gas heat, when equipped

The available documentation does not provide a complete electrical connection schedule for the CL64-ADV. Confirm the exact machine heat and electrical configuration rather than applying figures from a different CL64 version.

Operation

Before operation, the manual instructs users to make sure the dishwasher is clean and all parts are in place. Tank standpipes, strainer pans, scrap baskets and wash arms are among the components it describes installing. Where a scrapper is fitted, the standpipe with strainer goes in the first tank where the rack enters; the manual specifies a standpipe without a strainer in the second or third tank. Install wash arms with their sliders closed, push each arm onto its connector pipe and position the opposite end in its guide.

The manual's no-operation checks include closed inspection doors, a clear conveyor and an available power supply. If the auto-timer has timed out, it directs the operator to press START or insert a rack. If the machine is in Energy Saver Mode, press WASH on the HMI to resume. A tripped table limit switch can also prevent operation when that switch is used.

Cleaning & Maintenance

The provided manual excerpts do not give a complete daily cleaning schedule or maintenance interval. They do identify components to inspect when wash performance is poor: tank water level and drainage, drain O-rings, wash-arm sliders and nozzles, manifold O-rings, and the pump intake. The manual also says to install the standpipes, strainers, scrap basket and wash arms in their proper positions before operation.

For a suspected pump obstruction, the manual directs the operator to disconnect electrical power and follow lockout/tagout procedures. It warns that multiple circuits may be present and says to verify that all circuits are disconnected. Drain the tank or tanks and check for an obstruction at the pump intake. For service work beyond the listed checks, follow the machine's complete manual and contact Hobart Service where directed.

Troubleshooting

Machine will not operate

• Check for a blown fuse or tripped circuit breaker at the power supply.
• Confirm inspection doors are closed.
• Check whether the conveyor is jammed.
• If the auto-timer has timed out, press START or insert a rack.
• If fitted, check whether the table limit switch has tripped.
• If the machine is in Energy Saver Mode, press WASH on the HMI to resume.

Dishes are not clean

The manual lists insufficient wash water, a drain obstruction that leaves the drain open, and a worn or torn drain O-ring as possible causes. It also lists wash-arm sliders left open, blocked wash-arm nozzles, a worn or torn manifold O-ring, pump obstructions that reduce water pressure, and incorrect water temperature. For temperature checks, the manual points to the electric heat circuit breaker, main steam valve or gas supply valve, as applicable to the machine configuration.

Selected error codes shown in the manual

• 016 and 017: Wash-tank pressure sensor faults. The manual describes a short or open circuit, or a booster water level outside its specified limits, and directs the operator to contact Hobart Service.
• 018: Wash-tank water level too high. Check for drain obstructions and drain the machine; contact Hobart Service if the issue persists or the machine cannot be drained.
• 020 and 023: Tank-fill time exceeded or tank water level did not increase in the set time. Confirm the drain is closed, the incoming water is on and the fill hose is not kinked; verify water pressure is 20–65 psi. Drain and try filling again where directed. Contact Hobart Service if the error persists.
• 029: Wash interrupted because a door was opened during operation; the displayed instruction is to close the doors.
• 083 and 084: Final-rinse temperature too low. Press ENTER to clear the error. For 084, the wash cycle stops and the machine turns off; contact Hobart Service if the error persists.
• 085 and 086: Wash-tank or booster overtemperature trip. Contact Hobart Service.
• 088 and 089: Wash-tank or booster contactor error. The manual says to turn off the machine circuit breaker or breakers, not to drain the machine, and to contact service.
• 094 and 095: Power-rinse tank pressure sensor faults, including a sensor short or open circuit or a tank level outside its specified limits. Contact Hobart Service.
• 100 and 101: Power-rinse temperature sensor faults. Contact Hobart Service.
• 102 and 103: Drain Water Tempering temperature sensor faults. If the DWT assembly is not installed, the manual says to disable DWT in the manager menu; otherwise, contact service.
• 234: External conveyor not ready. Ensure it is powered on, ready and free of errors; contact Hobart Service if the error persists.

Applications

The CL64-ADV's conveyor format and two-tank, automatic soil removal configuration suit commercial dishrooms processing racks of dishes through a continuous wash operation. Its hot- and cold-water requirements, drain arrangement and—if gas heated—gas supply should be checked against the facility's available utilities and the exact machine configuration before purchase.