UH330 ADA

Overview

The Champion UH330 ADA is a high-temperature commercial undercounter dishwasher with a 29-7/8-inch overall height. Its low profile is intended to fit under countertops while allowing for a 34-inch ADA counter-height requirement, according to the product specification. The machine can also be installed as a freestanding unit. A 12-inch internal clearance accommodates wares in its standard 20-by-20-inch racks.

For busy kitchens that need a compact dishwashing station, the UH330 ADA offers three selectable cycle times and a stated capacity of up to 30 racks per hour. It has a built-in electric booster heater, heat recovery, and Dry Assist. The product is constructed of stainless steel and is listed as ENERGY STAR qualified.

Key Features

• Low-profile cabinet: 29-7/8 inches high, specified to fit under countertops and allow for a 34-inch ADA counter-height requirement.
• Three cycle choices: Select 120-, 200-, or 277-second cycles.
• High-temperature final rinse: Rinse Sentry ensures a final rinse temperature of 180°F (82°C) for sanitized wares.
• Heat recovery: Uses a cold-water feed only. The product literature states heat recovery can be up to 50% more energy efficient, remove condensation, reduce operating costs, and support quicker drying.
• Dry Assist: Helps improve and speed up drying of wares.
• Built-in booster and insulation: The machine includes insulated panels and an electric booster heater.
• Wash protection: Soft Start helps protect glasses and dishes from chipping and breaking.
• Controls and diagnostics: Features a digital temperature display and control, LED temperature display, and advanced service diagnostics.
• Detergent delivery: Standard liquid detergent and rinse-aid pumps are included.
• Wash system: A 1 HP corrosion-resistant pump and independent stainless-steel upper and lower wash and rinse arms.
• Drain functions: Pumped drain and automatic drain cycle.
• Included racks: One peg rack and one flat rack.
• Phase conversion: The product literature describes field conversion from single-phase to three-phase power.

Specifications

• Product type: High-temperature undercounter dishwasher with built-in booster heater and heat recovery.
• Construction: Stainless steel; insulated panels are specified.
• Overall height: 29-7/8 inches (759 mm).
• Depth, door closed: 26-3/4 inches (679 mm).
• Depth, door open: 39-1/2 inches (1,003 mm), according to the installation manual.
• Internal clearance: 12 inches.
• Standard rack size: 20 by 20 inches (508 by 508 mm).
• Rack complement: One dish rack and one open rack; the included racks are also described as one peg rack and one flat rack.
• Cycle times: 120, 200, or 277 seconds.
• Capacity: 30, 18, or 13 racks per hour, as listed alongside the cycle-time options.
• Wash motor: 1 HP.
• Water use: 15.6/12.9 U.S. gallons per hour maximum use, and 0.65/0.54 U.S. gallons per rack, as listed in the product specifications.
• Wash temperature: 150°F (66°C).
• Final rinse temperature: 180°F (82°C).
• Tank heat: Electric, 2.0 kW.
• Booster heater: Electric, 5 kW.
• Electrical supply: 208-240 V, 60 Hz, single-phase, three-wire plus ground; or 208-240 V, 60 Hz, three-phase, four-wire plus ground, as listed in the product specification.
• Water supply: Single 1/2-inch cold-water supply; water temperature 55-80°F (12-26°C). The machine has a 3/4-inch hose connector.
• Water pressure: Product specification lists a 25 PSI minimum. The installation manual specifies flowing incoming pressure between 25 and 95 PSI.
• Drain: Pumped drain with a 5/8-inch (15.9 mm) inside-diameter, 6-foot (1,829 mm) flexible reinforced hose; maximum drain height 3 feet (914 mm); maximum drain flow 15 U.S. gallons per minute.
• Wash and rinse timing: The specification lists wash segments of 45/120/197 seconds, a 13-second rinse, and 62 seconds for heat recovery/condense.
• Crated volume: 15 cubic feet (0.42 cubic metres).
• Crated shipping weight: 215 lb (97.5 kg).
• Warranty: One year parts and labour. The manual states coverage is one year from installation or 15 months from shipment, whichever occurs first, subject to its terms.

Installation & Requirements

Placement and space

The manual permits freestanding or under-counter placement and identifies 34 inches (864 mm) as a typical countertop height in most locations. It recommends that the underside of the countertop be clad in metal. The door-open front-to-back dimension is 39-1/2 inches (1,003 mm), and the manual specifies 3 inches (76 mm) of clearance to the back wall. The dishwasher has four adjustable feet for levelling. Under-counter installations should provide space for chemical containers; the manual says not to elevate the containers above the finished floor and to place them as close to the machine as possible.

Electrical connection

The product specification lists 208-240 V, 60 Hz single-phase or three-phase power. It describes field conversion to three-phase operation. The installation manual says machines are shipped wired for single-phase operation unless three-phase is specified when ordered. It also requires the electrical connection to follow the machine data plate and applicable electrical codes. Electrical work should be performed by qualified personnel. Confirm the machine's data plate and the site supply before connection; the sources do not provide a single universal amperage figure for every electrical configuration.

Water and drain connection

The UH330 ADA requires a single 1/2-inch incoming cold-water line. The manual specifies water at 55-80°F (12-26°C), a 1/2-inch-or-larger incoming supply line, and flowing pressure between 25 and 95 PSI. The flexible fill hose is 6 feet long and has a 3/4-inch female garden-hose connector. The product specification gives a 25 PSI minimum pressure. The pumped drain uses a supplied 6-foot, 5/8-inch inside-diameter hose; the maximum drain connection height is 3 feet.

For the drain, the manual directs installers to use an 1-1/2-inch-or-larger vented WYE fitting. It warns that connecting to a TEE fitting will prevent complete draining. Do not connect the drain hose to a disposer, reduce the drain connection size, add length to the hose, or allow the hose to kink. The manual also calls for an anti-siphoning loop and a 1-inch minimum air gap for a direct drain connection. Plumbing must comply with applicable national, provincial, and local plumbing and sanitary codes.

Codes and ventilation

The manual requires installation by qualified service personnel familiar with food-service equipment and compliance with local health, electrical, plumbing, and safety codes. Where local codes do not apply, it cites the National Electrical Code, Canadian Electrical Code Part 1 (CSA C22.1), and NFPA 96. The product specification says a vent hood is not recommended because the unit does not produce excessive steam. Always follow applicable local building-code guidelines.

Operation

Choose from the three available cycle times: 120, 200, or 277 seconds. The digital temperature display and control show machine temperature, while Rinse Sentry ensures that the high-temperature final rinse reaches 180°F (82°C). The specification lists a 150°F (66°C) wash temperature. The detergent and rinse-aid pumps are standard equipment. Dry Assist supports quicker drying, and heat recovery uses the cold-water feed as part of the machine's heat-recovery process.

The product literature lists an automatic drain cycle and pumped drain. It does not provide a UH330 ADA-specific daily startup or loading procedure in the supplied material, so operators should use the instructions applicable to their machine.

Cleaning & Maintenance

The supplied UH330 ADA manual excerpt does not provide a complete routine cleaning schedule or cleaning procedure. It does state that regular maintenance and cleaning described in the operator's guide are not covered by the limited warranty. Follow the machine's operator documentation for those procedures.

The manual specifically warns that storing wet dish racks directly on top of the machine without a drip tray kit installed will void the warranty. A drip tray kit is listed as an accessory. The installation manual also cautions against kinking the flexible fill or drain hoses; its drain instructions warn that incorrect drain connections can cause drainage problems.

Troubleshooting

Dishwasher does not drain completely

Check the drain connection arrangement against the manual. It warns that a TEE fitting prevents complete draining and specifies an 1-1/2-inch-or-larger vented WYE fitting. The manual also identifies connection to a disposer, a reduced drain connection, added drain-hose length, a kinked hose, or a drain connection higher than 3 feet as conditions to avoid. The supplied drain hose should have an anti-siphoning loop. Plumbing connections and installation should be handled by qualified personnel familiar with the applicable codes.

Final rinse temperature is below the specified level

Rinse Sentry is specified to ensure a 180°F (82°C) final rinse on this high-temperature model. The supplied product information does not give further UH330 ADA troubleshooting steps for a temperature issue. Refer to the machine's service documentation or qualified service personnel.

Applications

The UH330 ADA suits commercial kitchens that need a compact undercounter dishwashing station, including restaurants, cafés, and other food-service operations with rack-based warewashing. Its three cycle options, 20-by-20-inch rack complement, 12-inch internal clearance, and stated capacity of up to 30 racks per hour provide practical reference points when assessing fit and dishroom throughput. Confirm the available counter space, electrical supply, cold-water connection, and drain arrangement against the unit's requirements before selecting it.