User manual SCOTSMAN CME250

[. . . ] CME250 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 CME250 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 CME250 automatically maintains the level of ice by turning on when the ice level falls, and switches off when the bin is full. [. . . ] This simulates bin full and the ice machine should switch itself off at the end of a harvest cycle. The ice machine is now ready for automatic operation. October 1994 Page 12 CME250 Maintenance and Cleaning Cleaning Schedule: · Scrub the outside of the cabinet once a week with soap and water. · 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. 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 Water Valve Inlet Screen August 1994 Page 13 CME250 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. Every 30 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 one ounce 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. [. . . ] Usually a leak detector capable of detecting a Halogenated refrigerant or HFC-134a will work. · As with any other refrigerant, do NOT mix with air for leak testing. 17 18 20 21 23 24 26 28 29 31 33 35 37 39 41 43 46 48 50 53 55 58 60 63 66 69 72 75 78 81 85 88 91 95 99 102 106 110 114 118 123 127 132 136 141 TEMP. 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 . [. . . ]