User manual SCOTSMAN NME1850R

[. . . ] NME1850R & FME2400R INTRODUCTION To the owner or user: The service manual you are reading is intended to provide you, and the maintenance or service technician, with the information needed to install, start up, clean, maintain, and service this ice system. It features: front service for the freezer, gear motor, control box, water reservoir, and bin control; an electronic circuit for monitoring ice and water level; and R-404A as the refrigerant. TABLE OF CONTENTS FOR THE INSTALLER . REMOVAL AND REPLACEMENT: Water Reservoir & Bin Controls REMOVAL AND REPLACEMENT: Bearing And Breaker . Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 20 Page 23 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Parts Lists and Wiring Diagrams are located in the center of this manual, printed on yellow paper. The manual was printed on recycled paper. [. . . ] Continue ice making for at least 15 minutes, to flush out any cleaning solution. DO NOT USE any ice produced from the cleaning solution. Add warm water to the ice storage bin and thoroughly wash and rinse all surfaces within the bin. Sanitize the bin interior by washing the interior of the bin with the balance of the sanitizer solution. Switch the master switch ON. January 1996 Page 20 NME1850R & FME2400R MAINTENANCE AND CLEANING These units consist of two separate ice makers; to properly clean and maintain the them, these steps must be followed for both systems. ICE CHUTE Disconnect electrical power before beginning. ICE LEVEL SENSORS SLIDE LEFT TO REMOVE 1. The bin control uses devices that sense light, therefore they must be kept clean enough so that they can "see". At least twice a year, remove the bin control sensors from the base of the ice chute, and wipe the inside clean, as illustrated. The ice machine senses water level by a probe located in the water reservoir. At least twice a year, the probe should be removed from the reservoir, and the tip wiped clean of mineral build-up. Check and tighten all bolts and screws. RESERVOIR ICE SWEEP WATER LEVEL SENSOR ////////////////////////////////////// CAUTION: THE TIP IS MADE OF GLASS /////////////////////////////////////// BREAKER COVER 3. The top bearing in the breaker should also be checked at least two times per year. Check the breaker bearing by: · removing the ice chute cover · unscrewing the ice sweep · removing the water shed · unscrewing the breaker cover (left hand thread) · unscrewing the auger stud January 1995 Page 21 NME1850R & FME2400R MAINTENANCE AND CLEANING In some areas the water supply to the ice maker will have a great deal of minerals in it, and that will result in an evaporator and auger becoming coated with these minerals, requiring a more frequent removal than twice per year. If in doubt about the condition of the evaporator and auger, the auger can be removed so the parts can be inspected. Note: Water filters can filter out suspended solids, but not dissolved solids. Check with a water treatment specialist regarding water treatment For more information on removal and replacement of these parts, see REMOVAL AND REPLACEMENT. Push back bail clamp holding ice chute cover to ice chute, and remove cover. Loosen band clamp under ice chute, and remove ice chute from evaporator. After the auger has been removed, allow the auger to dry; if the auger is not bright and shiny, it must be cleaned. Reverse to reassemble. ALLEN SCREWS BREAKER & BEARING & AUGER ASSEMBLY January 1995 Page 22 NME1850R & FME2400R SERVICE DIAGNOSIS: Condition - No Ice Being Produced STATUS: NOTHING OPERATES A. Check: The reset switch (high pressure): depress and release the switch. If the unit still does not start, check the spout switch, or high side pressure. Check the high pressure cut out switch, if closed, go to E; if open: 1. Check the high side pressure, reset the switch and observe that the fan is forcing air through the condenser. [. . . ] 146 · When the system is serviced, a special liquid line drier is required. 155 · HP62 is not compatible with mineral oil, so these ice machines use 76 . 166 these refrigeration systems is opened for service, it must be re-sealed -10 . 177 · Special leak detection equipment is required to locate small refrigerant -8 . [. . . ]