User manual SCOTSMAN CM500

[. . . ] CM500 Introduction To the owner or user: This service manual is intended to provide you, and the maintenance or service technician, with the information needed to install, start up, clean, maintain and repair this product. The CM500 is an ice machine that produces cubed ice on 2 vertical cube freezing surfaces. The cubes fall as vertical strips of cubes into the ice storage bin where they break up into individual cubes. The CM500 automatically maintains the level of ice by turning on when the ice level falls, and switches off when the bin is full. [. . . ] · Clean the water system and air cooled condenser a minimum of twice per year. If in an area of high mineral concentration in the water supply, clean water system 4 times a year. There are two areas to keep clean: The water system including the water reservoir, distributor tube and evaporator surface; and the air cooled condenser filter and the condenser itself. Inlet Water Valve Screens If a restriction of incoming water is suspected, the screen on the inlet side of the water valve should be inspected & cleaned. Some models also have a strainer in the water line; the strainer screen should also be inspected for restricting minerals. 1. Wash the surface of the filter off with cold water, or, if torn or so dirty it can't be cleaned, replace with a new filter. Note: If the unit has been operated without the filter in place, the fins of the condenser will become fouled with dirt, and must be cleaned. A vacuum cleaner with a soft brush attachment will extract most loose dust stuck to the surface of the condenser fins. If there is any doubt about dirt inside the fins of the condenser, the cabinet should be removed and a qualified service agent should clean the condenser. Water cooled units: The water cooled condenser may, over time and under certain water conditions, become internally restricted by minerals. Only a qualified service agent should attempt this type of service. Inlet Screen May Be Removed For Cleaning C, D and Early E Series Valve Later E Series Valve Inlet Screen Air Filter (air cooled only): December, 1992 Page 12 CM500 Cleaning: Ice Storage Bin The interior liner of the bin is in contact with a food product: ice. The storage bin must be cleaned regularly to maintain a sanitary environment. Once a week cleaning with soap and water, a hot water rinse and an air dry is a basic procedure. Every 90 days, the liner should be sanitized with a commercial ice machine sanitizer, according to the directions of the sanitizer, or with a solution of household bleach and water: 1. Mix the bleach and water using the ratio of two ounces of bleach to two gallons of water. Wipe all interior surfaces of the ice storage bin with the bleach and water. Mix a cleaning solution of 4 ounces of Scotsman Ice Machine Cleaner to 4 pints of hot (950F. -1100F. ) water. Using rubber gloves, dip a nylon scouring pad into the cleaning solution and scrub the scale off the liner. After the scale has been removed, rinse all surfaces inside the bin with clean, potable water. Stainless Steel Components Inside Bin The stainless steel parts in the bin also require periodic cleaning. Chemicals in the water supply, such as chlorine, cause brown stains to appear on the surface of the stainless steel parts. General Cleaning - staining is usually removed by washing the parts with ordinary cleaning powder such as Bon-Ami or Copper-Glo and water. [. . . ] There are many ways to determine the proper operation of a Scotsman ice machine without using refrigerant gauges. Visual inspection of the water system, observation of the ice formation, amp draw, voltage, and other techniques will lead to proper diagnosis. Scotsman also recommends that, at the time of initial start up, gauges not be used. · If gauges must be used, do not always check the high side pressure. [. . . ]