This document is an Installation and User's Manual for Scotsman Self-Contained Prodigy Cubers, specifically models CU1526, CU2026, and CU3030 E Series. It provides comprehensive information for the installation, operation, and maintenance of these ice machines.
Function Description:
The Scotsman Prodigy Cubers are self-contained ice machines designed to produce cube ice. They are suitable for indoor installation in a controlled environment and can be used as freestanding units or built-in under a counter. The design incorporates a removable bin for service access. These machines automatically make ice until the storage bin is full, resuming production as ice is removed or melts. They feature a control system that monitors various operational parameters and provides diagnostic feedback through indicator lights and a digital display.
Important Technical Specifications:
Environmental Limitations:
- Air temperature: Minimum 50°F, Maximum 100°F.
- Water temperature: Minimum 40°F, Maximum 100°F.
- Water pressure: Minimum 20 psi, Maximum 80 psi.
- Note: Ice making capacity is severely reduced for air-cooled machines in hot environments (over 95°F).
Power Supply – Acceptable Voltage Ranges:
- 115 volt models: Minimum 104V, Maximum 126V.
- 230 volt models: Minimum 198V, Maximum 253V.
- The machine is cord-connected and requires a separate power supply. 208-230 volt, 60 Hz cords have NEMA 6-20P plugs.
Product Dimensions (w" x d" x h" without legs):
- CU1526SA-1E / CU1526SW-1E: 26.62 x 27.5 x 33 inches.
- CU2026SA-1E / CU2026SW-1E / CU2026MA-32E / CU2026SW-32E: 26.62 x 27.5 x 33 inches.
- CU3030SA-1E / CU3030SW-1E / CU3030SA-32E: 30.62 x 30 x 33 inches.
- Legs add 6 to 6.75 inches to height. Floor mounting kits add about a half inch.
Electrical Requirements (Total Load Amps / Maximum Fuse Size):*
- CU1526SA-1E (Air, 115/60/1): 5.7 Amps / 15A.
- CU1526SW-1E (Water, 115/60/1): 5.2 Amps / 15A.
- CU2026SA-1E (Air, 115/60/1): 4.6 Amps / 15A.
- CU2026SW-1E (Water, 115/60/1): 3.8 Amps / 15A.
- CU2026MA-32E (Air, 208-230/60/1): 4.6 Amps / 15A.
- CU2026SW-32E (Water, 208-230/60/1): 4.2 Amps / 15A.
- CU3030SA-1E (Air, 115/60/1): 10.2 Amps / 15A.
- CU3030SW-1E (Water, 115/60/1): 9.4 Amps / 15A.
- CU3030SA-32E (Air, 208-230/60/1): 6.0 Amps / 15A.
- *Or HACR type circuit breakers.
Plumbing Requirements:
- Cold, potable water connection with a hand-actuated valve.
- Air-cooled models: Single 3/8" male flare inlet water connection, single ¾" FPT drain fitting.
- Water-cooled models: Additional 3/8" FPT condenser inlet water connection, 1/2" FPT condenser drain, plus the standard fittings.
- Drain tubing: Rigid, routed separately, with a 1¼" fall per foot of run. Reservoir drain should be vented vertically (8-10").
- NSF listed models have a 1" anti-back flow air gap; no back flow device required for potable water inlet.
- RO water can be used, but conductivity must be no less than 10 microSiemens/cm.
Typical Ice Making Cycle Times (minutes) for clean machines in proper installations:
- CU1526A (70°F air / 50°F water): 22-25; (90°F air / 70°F water): 36-29.
- CU1526W (70°F air / 50°F water): 21-24; (90°F air / 70°F water): 28-31.
- CU2026A (70°F air / 50°F water): 15-18; (90°F air / 70°F water): 25-28.
- CU2026W (70°F air / 50°F water): 15-18; (90°F air / 70°F water): 20-23.
- CU3030A (70°F air / 50°F water): 12-15; (90°F air / 70°F water): 19-22.
- CU3030W (70°F air / 50°F water): 10-13; (90°F air / 70°F water): 15-18.
Usage Features:
- Self-Contained Design: Combines ice maker and storage bin in one unit.
- Removable Bin: Facilitates service access to the refrigeration system.
- Control Switches: ON/OFF buttons located inside the cabinet. A quick push and release of OFF shuts down at cycle end; holding OFF for 3 seconds shuts down immediately. A quick push and release of ON starts the machine.
- Indicator Lights: Four lights (Power, Status, Water, De-Scale & Sanitize) provide operational status and diagnostic information.
- Power: Steady Green (Normal), Blinking Green (Self Test Failure/Switching on or off), Blinking Red (Diagnostic shut down/Temp sensor failure/Lack of water).
- Water: Indicates lack of water supply.
- De-Scale & Sanitize: Yellow (Time to de-scale and sanitize), Blinking Yellow (In Cleaning mode).
- Automatic Water Purge: Factory set to automatic, it varies the amount of water purged based on water purity to reduce hard water scale. Manual purge settings (1-5) are also available for different water conditions (RO, Low TDS, typical, Heavy TDS, Very High TDS).
- Ice Bridge Thickness Adjustment: A hex wrench adjustment screw allows fine-tuning of ice bridge thickness (factory set at 1/8 inch).
- Ice Dispensing: Cubes drop in large sections and break into random parts in the bin. Tapping with an ice scoop can separate larger groups.
- Built-in Options: Can be built-in under counters with specific clearance requirements for bin removal (1" or more clearance allows bin removal without moving unit; 1/2" to 1" clearance requires releasing top panel's back flap).
Maintenance Features:
- Cleaning, Sanitation, and Maintenance: Three types of maintenance are required:
- Mineral Scale Removal: Clean the water system and sensors with Scotsman Clear 1 ice machine scale remover. This process involves draining, refilling, circulating the cleaner, then repeated draining and refilling to purge residue. Recommended minimum twice per year.
- Sanitation: Sanitize the water system and ice storage bin. This involves using a sanitizer solution (e.g., 1 oz liquid household bleach per 2 gallons of warm potable water) to wash all interior surfaces, sensors, water distributor, and curtain, followed by circulation and flushing. Sanitize as frequently as local health codes require, and every time the machine is cleaned.
- Air Filter/Condenser Cleaning:
- CU1526 & CU2026 (Air Cooled): Remove and wash the front louvered filter.
- All Air Cooled Models without filter: Clean the condenser fins (located behind fan blades). A refrigeration technician is recommended for this task.
- Water Filter Cartridge Replacement: If connected to water filters, check cartridges for replacement every 6 months or if pressure drops significantly.
- Exterior Panel Cleaning: Wipe down exterior panels to remove fingerprints, dust, and grease.
- Ice Storage Bin Removal: Detailed steps are provided for removing the bin, including disconnecting drain tubes and removing bolts, to allow access for service.
- Troubleshooting Guide: "What to do before calling for service" section helps diagnose common issues like lack of water, prolonged freeze/harvest cycles, high discharge temperature, or controller self-test failure. It also explains how to manually reset or shut off the machine.
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