DCE33 INTRODUCTION The Scotsman DCE33 is a restaurant type ice machine designed for home use. It produces the same high quality ice as large Scotsman commercial ice cube machines, and stores that ice in a heavily insulated storage bin. This service manual is intended as a resource for people installing, using, and servicing the DCE33. Because it contains information on safety and maintenance, Scotsman strongly recommends that this manual be kept where it is readily available. Table of Contents Page Technical Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installation: Water ................................... 3 4 2 Plumbing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Add On Kits: Drain Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Door Kit .................................. ............................. 9 10 11 12 13 14 15 15 16 17 18 18 19 Reverse Door Swing Initial Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Component Location ............................. Maintenance & Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . Winterizing ................................. Cleaning Ice Making System . . . . . . . . . . . . . . . . . . . . . . . . . . Adjust Cube Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Adjust Bin Ice Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Adjust Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Service Diagnosis Repair: Curtain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Inlet Water Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Timer ................................... .............................. .............................. 21 21 22 23 23 24 Cube Size Control Bin Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Water Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Parts lists and wiring diagrams are located in the center of the manual, printed on yellow paper. August 1995 Page 1 This manual was printed on recycled paper. DCE33 TECHNICAL INFORMATION Scotsman Ice Systems are designed and manufactured with the highest regard for safety and performance. They meet or exceed the standards of U.L., and C.U.L. Scotsman assumes no liability or responsibility of any kind for products manufactured by Scotsman that have been altered in any way, including the use of any parts and/or other components not specifically approved by Scotsman. Scotsman reserves the right to make design changes and/or improvements at any time. Specifications and designs are subject to change without notice. Cool Air In Warm Air Out Cabinet Drain Color Pump? White No White Yes Black No Black Yes Black with No SS door DCE33PA-1SB 115/60/1 15 amp same Yes Add On Kits: Stainless Steel Door Panel Kit is SS33 Serial Number Cabinet Extensions: KCE18-W (white) KCE18-B (black) Tag Location Stainless steel door sleeve conversion kit is K-SS Drain Pump Kit to convert gravity drain to pump drain is part number A36892-020 (must also order pump). Refrigerant Charge is 5 ounces of R-134a. Compressor HP is 1/8 Model Number Basic Electrical DCE33A-1WB 115/60/1 DCE33PA-1WB 115/60/1 DCE33A-1BB 115/60/1 DCE33PA-1BB 115/60/1 DCE33A-1SB 115/60/1 Maximum Fuse Size 15 amp 15 amp 15 amp 15 amp 15 amp Refrig. Ice Machine Overhead View of DCE33 and Companion Refrigerator Side By Side DCE33 Cabinet Views September 2000 Page 2 Pump Drain Hose is 3/8" ID DCE33 INSTALLATION To properly make and store ice, the DCE33 requires access to air, potable water, 115 volt electricity and a drain. The machine must be installed indoors, in a controlled environment. Air: The ice machine uses a fan to take in room air at the front of the machine through the right side of the kick plate. It discharges warm air out the left side of the kick plate. Anything placed in front of the kick plate will restrict air flow and cause a decrease in performance and efficiency. The minimum air temperature the machine will operate in is 500 F., and the maximum is 1000 F. Water Supply: The ice machine requires a continuous supply of potable water at no less than 20 p.s.i.g. of flowing pressure. Static water pressure should not exceed 80 p.s.i.g. The minimum water temperature the machine will operate in is 400 F., and the maximum is 1000 F. Water Quality: There is no such thing as "pure" water; all water, including potable water supplied by municipalities, contains some "impurities". 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 the DCE33 will have a lower mineral content than the water it was made from. 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 DCE33 dilutes the concentration of minerals by over-filling the reservoir during the harvest cycle (with the excess water flowing down the drain). About 3 quarts of water flow into the unit each cycle. About 1 quart 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. June 2000 Page 3 To keep the machine operating properly, these impurities or minerals will have to be regularly dissolved by an acid cleaning, using Scotsman Ice Machine Cleaner. Directions for this may be found in the section under cleaning. 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. A reverse osmosis system should include post treatment to satisfy the R.O. water's "aggressiveness". Deionized water is not recommended. Because water softeners exchange one mineral for another, Scotsman does not recommend their use for ice machines. Where water is very hard, softened water may result in white, mushy cubes that stick together. Scotsman suggests, that if in doubt about the water, that a local point of use water specialist be contacted for recommendations on water treatment. Electricity: The machine is supplied with a cord, and may be plugged into a wall outlet. The ice machine should be the only device using that circuit. The fuse (or circuit breaker) size should be 15 amps. Drain: There are two DCE33 models: The DCE33A-1 is a gravity drain model that requires a drain tube that's pitched down from the outlet at the back of the cabinet to the connection to the sanitary sewer. The DCE33PA-1 has a built in drain pump that will pump water up to a drain point, such as a nearby sink. DCE33 TO INSTALL: Plumbing The water supply and drain should be roughed in and ready at the point of installation. A wall outlet directly behind the ice machine will make undercounter installation easier. All electrical, water and drain connections must conform to local codes. Installation Cautions: Although the DCE33 has been designed to be serviced in place, in some cases it may be necessary to pull the unit out for service. For that reason do not restrict access to the cabinet at the front - top and bottom. Installations on a slab: Use a pump (DCE33PA-1B) model and pump the water to the point of drainage. Pump models will pump 1 story high. Installations over a crawl space or basement: Either gravity drain or pump model units may be used, if there is not enough room behind the machine for a drain/waste receptacle, the drain will have to be below the floor. ALL PLUMBING MUST MEET LOCAL CODES Note: When installed in a corner, the door Install Unit swing may be limited due to handle contact Flush With Floor with the wall or cabinet face. Shims If a floor is to be installed after the ice machine, shims the thickness of the floor should be installed under the DCE33 to keep the machine level with the floor. Also, allow 1/8" clearance on each side of the cabinet. From Ice Machine Normal Drain Line, Pitched Down From Ice Machine To Drain Good Draining With Trap, Causes Poor Draining Poor Draining With Trap And Vent, Draining Is Normal Good Draining EXAMPLES OF GRAVITY DRAIN TUBE INSTALLATIONS June 2000 Page 4 DCE33 TO INSTALL: Plumbing Free Standing Cabinet, Gravity Drain Model: All horizontal runs of drain lines must have a 1/4" per foot fall. An air gap will likely be required between the ice machine drain tube and the drain/waste receptacle. A stand pipe with a trap below it would be acceptable for the drain/waste receptacle. A floor drain is also acceptable. FOLLOW ALL LOCAL PLUMBING CODES Poor draining will cause a high rate of ice melting in the bin. 1. Remove the kick plate and the access cover above it. 2. Route the water supply, which should be a 1/4" O.D. copper tube through the back of the cabinet to the front. 3. Install a flare nut and flare the end of the tube. 4. Flush the water line and fasten the flare nut to the male flare on the inlet water valve. 5. Route a 5/8" ID (7/8" OD) drain tube through the back panel of the machine and connect to the bin drain fitting at the bottom of the bin. Secure with hose clamps. Be certain that the drain tube is pushed up well past the barbs on the drain fitting. If needed to ease installation, soak the drain hose in hot water just before connecting to the fitting. 6. Route the drain tube from the ice machine to the drain/waste receptacle. Note: if using a long horizontal run (more than 5') the drain should be vented at back of cabinet. 7. Turn on the water supply and check for leaks. 8. Replace the kick plate and the access cover above it. 9. Level the unit using the leg levelers. Water Filter (Recommended) Shut Off Valve Drain Detail Water Inlet Connection Detail Floor Drain INSTALLATION OF WATER AND DRAIN January 2002 Page 5 DCE33 TO INSTALL: Plumbing Free Standing Cabinet, Pump Model: 1. Remove the kickplate and control box cover. 2. Route the water supply, which should be a 1/4" O.D. copper tube through the back of the cabinet to the front. 3. Install a flare nut and flare the end of the tube. 4. Flush the water line and fasten the flare nut to the male flare on the inlet water valve. 5. Locate the coil of 3/8" ID plastic drain tubing secured to the back of the cabinet. 6. Route the plastic drain tubing to the drain point connection. Do not connect to a drain/waste line below a trap. Connect the discharge line to the drain, per local codes. An air gap will likely be required between the ice machine drain tube and the drain/waste receptacle. 7. Turn on the water and plug in the ice machine. Pour a couple quarts of water in the bin, the drain pump should start. Check for water leaks. 8. Replace the kickplate and control box cover. 9. Level the unit using the leg levelers. ALL PLUMBING MUST MEET LOCAL CODES THE DCE33 WILL FIT IN A SPACE 151/4" WIDE X 333/4" HIGH. THE DEPTH OF THE CABINET IS 22" TO THE FRONT EDGE OF THE HANDLE. Air Gap Device (Where Required) Drain Connection WATER AND DRAIN INSTALLATION Drain Tube From Back Of Machine Water Shut Off Valve Water Filter (Recommended) Water Inlet Connection June 2000 Page 6 DCE33 TO INSTALL: Plumbing Built In, Gravity Drain Model: The drain and inlet water tubes must be plumbed before connecting to the ice machine. All horizontal runs of drain lines must have a 1/4" per foot fall. An air gap will likely be required between the ice machine drain tube and the drain/waste receptacle. A stand pipe with a trap below it would be acceptable for the drain/waste receptacle. Note: Poor draining will cause a high rate of ice melting in the bin. 1. Place ice machine in front of installed location. Adjust leg levelers to approximately correct position. 2. Remove kickplate and the access cover above it. 3. Route water inlet line, which should be a 1/4" O.D. copper tube, from wall through ice machine to the front. 4. Route drain line from wall position through ice machine. Note: if using a long horizontal run (more than 5') the drain should be vented at back of cabinet. 5. If electrical outlet for ice machine is behind the cabinet, plug in the ice machine now. 6. Push ice machine into installed position. 7. Cut off water inlet line at required length. 8. Flush water line. Place flare nut on inlet water line and flare the end of the copper tube. 9. Att ...