CU50

Service Manual

Water Quality

All water, including potable water supplied by municipalities, contains some impurities or minerals. Water absorbs impurities from the air as rain and/or as it flows through the ground. Some of the impurities are solid particles, these are known as suspended solids, and a fine particle filter will remove them. Other impurities are chemically bonded to the water molecules, and cannot be filtered out, these are called dissolved solids.

Ice made by this machine will have a lower mineral content than the water it was made from. This is due to the method of making ice. Purer water will freeze first in the ice making molds. The reason for this is that anything dissolved in water lowers the water’s freezing temperature. This concentrates most of the impurities in the ice machine water reservoir where they may form hard deposits known as scale. The machine dilutes the concentration of minerals by over-filling the reservoir during the harvest cycle (with the excess water flowing down the drain). Between 2 and 4 pints of water flow into the unit each cycle. Between 1 and 3.5 pints of that rinses the reservoir and goes down the drain.

Some impurities will inevitably remain, and will stick to the parts in the machine, and will cause malformed ice cubes. Eventually, built up mineral scale can shorten machine life.

To keep the machine operating properly, these impurities or minerals will have to be regularly dissolved by an acid cleaning, using Scotsman Ice Machine Scale Remover. Directions for this may be found in the section under cleaning.

Filters and Treatment

In general, it is always a good idea to filter the water. A water filter, if it is of the proper type, can remove taste and odors as well as particles. Some methods of water treatment for dissolved solids include reverse osmosis, and polyphosphate feeders.

RO Water

This machine can be supplied with Reverse Osmosis water, but the water conductivity must be no less than 10 microSiemens/cm. A reverse osmosis system should include post treatment to satisfy the R.O. water’s potential aggressiveness. Deionized water is not recommended and is too clean to allow the machine to function.

Because water softeners exchange one mineral for another, softened water may not improve water conditions when used with ice machines. Where water is very hard, softened water could result in white, mushy cubes that stick together.

If in doubt about the water, contact a local point of use water specialist for recommendations on water treatment.

Installation Overview

The ice machine must:

•be connected to cold, potable water

•be connected to a drain

•be connected to the proper power supply

•be able circulate air through the vents at the front.

Note: Do not build in so that the door is recessed.

March 2010

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Scotsman Ice CU50 service manual Water Quality, Filters and Treatment, Installation Overview
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CU50 specifications

The Scotsman Ice CU50 is a compact and efficient undercounter ice maker designed for restaurants, bars, and small commercial spaces that require a reliable supply of ice. Known for its innovative design and user-friendly features, the CU50 can produce up to 65 pounds of clear, gourmet ice cubes daily, making it a perfect choice for establishments with moderate ice demands.

One of the main features of the Scotsman CU50 is its space-saving design. Measuring just 14 inches wide, it fits effortlessly under most countertops, maximizing usable space in tight environments. Despite its compact size, the unit boasts a robust performance, thanks to its advanced ice-making technology. The CU50 utilizes a water-cooled system that enhances the efficiency of ice production while ensuring optimal performance even in warmer conditions.

The CU50 generates ice in the form of crystal-clear cubes, which not only look appealing in drinks but also melt slowly, reducing dilution and maintaining beverage quality. The ice produced is perfect for a variety of uses, from cocktails to soft drinks, providing an upscale experience for patrons.

One of the standout characteristics of the Scotsman CU50 is its user-friendly interface. The unit features a simple control panel that allows users to easily adjust settings and monitor ice production. Additionally, it comes equipped with a self-cleaning feature, which simplifies maintenance and ensures that the machine operates efficiently over time.

The Scotsman CU50 is also designed with energy efficiency in mind. It is ENERGY STAR certified, which means it meets strict energy efficiency guidelines set by the U.S. Environmental Protection Agency. This not only helps reduce operating costs but also minimizes environmental impact.

Another noteworthy aspect of the CU50 is its durable construction. Built with stainless steel and high-quality components, it is designed to withstand the rigors of daily use in a commercial setting. Its rugged design ensures a long lifespan, making it a smart investment for business owners.

In summary, the Scotsman Ice CU50 is an ideal solution for establishments requiring reliable ice production in a compact footprint. With its advanced technology, easy-to-use features, and durable construction, it delivers high-quality ice while ensuring efficiency and ease of maintenance. Whether you are running a busy bar or a cozy café, the CU50 is equipped to meet your ice needs with style and reliability.
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