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Manual abstract: user guide SCOTSMAN SCE275
Detailed instructions for use are in the User's Guide. SCE275
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 SCE275 is an ice machine that produces cubed ice on a vertical freezing surface. The cubes fall into the ice storage bin where they break up into individual cubes. The SCE275 automatically maintains the level of ice by turning on when the ice level falls, and switches off when the bin is full. This unit is serviceable in place; the ice storage bin and hood may be removed from the chassis to allow service access without removing the ice machine from its installed position. The refrigeration system uses R-404A as the refrigerant.
Table of Contents Specifications · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 2 For The Installer: Environmental Limitations · · · · · · · · · · · · · · · · · · · · · · · · · · · 3 Installation · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 4 Installation · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 5 For The Plumber· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 6 Installation · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 7 Removal of the Cabinet · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 8 Component Location · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 9 Component Description · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 10 AutoIQ Controller · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 11 Initial Start Up · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 12 Notes On Operation · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 13 Adjustments · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 14 How To Operate The AutoIQ Controller · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 15 How The Electronic Cuber Works · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 16 Water System · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 17 Technicians Only: Freeze Cycle Operational Sequence · · · · · · · · · · · · · · · · · · · · · 18 Technicians Only: Harvest Cycle Operational Sequence · · · · · · · · · · · · · · · · · · · · · 19 Sanitizing and Water System Cleaning · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 20 Sanitizing and Cleaning · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 21 Additional Maintenance · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 22 Additional Maintenance · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 23 Additional Maintenance: Bin Controls · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 24 Technical Characteristics · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 25 Service Diagnosis · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 26 Service Diagnosis · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 27 Service Diagnosis · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 28 PTCR · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 29 Removal and Replacement: AutoIQ Controller · · · · · · · · · · · · · · · · · · · · · · · · · · 30 Removal and Replacement: Water Pump, Water Level Sensor · · · · · · · · · · · · · · · · · · 31 Removal and Replacement: Inlet Valve & Water Trough · · · · · · · · · · · · · · · · · · · · · 32 Removal and Replacement: Bin Control Set · · · · · · · · · · · · · · · · · · · · · · · · · · · 33 Removal and Replacement: Thermistors · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 34 Water Distributors · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 35 Refrigeration System Service: R-404A · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 36 Parts lists and wiring diagrams are located in This manual was printed on recycled paper. the center of this manual.
January 2003 Page 1
SCE275
Specifications
WATER REGULATOR 3/8-18 NPT (W/C ONLY)
BACK VIEW
4.00 IN. 10.16 CM. MINIMUM UTILITY CLEARANCE 4.59 IN. 11.66 CM. 6.00 IN 15.2 CM.
3.68 IN. 9.35 CM.
POTABLE WATER INLET 3/8 FLARE
4.06 IN. 10.31 CM.
3/4 FPT DRAIN 1.68 IN. 4.27 CM. ELECTRICAL CORD 7.17 IN. 18.21 CM. 9.12 IN. 23.16 CM. COND DRAIN 1/2-13 NPT (W/C ONLY)
The unit is equipped with an electrical power cord, but should only be plugged into a circuit dedicated to the ice machine.
11.35 IN. 28.83 CM.
THE NAMEPLATE IS LOCATED ON THE BACK PANEL A Serial Number Plate is Located on the Front Edge of the Base, Behind the Right Front Grill
Controller Location in G Series and Higher
AutoIQ Controller (Behind Right Grill in A thru F Series)
Model Number Dimensions Basic (w/o) legs Electrical H" x W" x D" SCE275A-1G 33 x 30 14 x 30 115/60/1 SCE275W-1G 33 x 30 14 x 30 SCE275A-6G 33 x 30 14 x 30
1 4
Condenser Total Type Load Amps Air 15 8.4 15 7.5 7.5 Water Air Water
January 2003 Page 2
Total Unit Wattage
Refrigerant R-404A (HP62) 18 ounces 18 ounces 12 ounces
SCE275A-32G 33 x 30¼ x 30 208-230/60/1 Air 115/60/1 230/50/1 230/50/1
1725 1725
18 ounces 12 ounces
SCE275W-6G 33 x 30 x 30
SCE275
For The Installer: Environmental Limitations
The ice machine must be installed indoors in a controlled environment. Min Air Temp Water Temp Water Pressure Voltage (60 Hz) Voltage (50 Hz) 50 F. 400F. 20 PSI 103.5 207
0
Max 1000F. 1000F. 80 PSI 126.5 253
Air In
Air Out
Operating the ice machine outside of the above limitations, or outdoors, is potentially damaging to the machine, and it is misuse of the machine. This may void the warranty. Scotsman Ice Systems are designed and manufactured with the highest regard for safety and performance. They meet or exceed the standards of UL, NSF, and CUL 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 part 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 design are subject to change without notice.
Airflow on air cooled models is: Intake through the left front grill. Exhaust through the right front grill. Do not install where this air flow is obstructed. The SCE275 has a removable cabinet. When installed, the machine should have some extra clearance ( 18") on the left and right sides so that the cabinet may be easily removed when the machine is in place.
January 2003 Page 3
SCE275
Installation
Water The water supply for this ice machine has been in contact with many materials since it fell from the sky as rain. All rain is slightly acidic, and tends to dissolve the materials it comes in contact with. During water's journey to the ice machine, it has flowed over and through the ground, been picked up by a municipal or private pump, forced through a series of pipes of differing construction and may have been treated by the municipality providing the water. This means that there is no such thing as "pure" water. All water contains some level of impurity. There are two ways water carries the impurities: suspended and dissolved. Water filters can remove the suspended solids, but cannot remove the dissolved portion. Cube ice machines use more water than is made into ice, the excess amount is used to dilute the concentration of minerals and "rinse" out the water system to keep the water scale from clogging up the machine. That water rinse, combined with water filters, prolongs the times between needed water system cleanings. The water to the ice machine should be filtered. Water filters vary greatly in ability and function. Install one that filters out suspended solids to a dimension of 5 microns or less. The finer the filter the better, but finer filters may plug-up sooner than course ones. It may be necessary to add a course filter ahead of the fine filter to prolong filter life. The SCE275 is factory set for a water purge that will work in most water conditions. While the amount of purge is adjustable, only change it if necessary. Note: Water use adjustments are customer convenience adjustments; they are not factory defects and are NOT covered by warranty. This ice machine may be installed in the open or under a counter. No clearance is required at the sides or top beyond what's needed to place the cabinet into position. Air cooled models blow air in and out through the grills at the front. Space is required for utility connections at the back. The ice machine is not designed for outdoor use. It must be installed indoors, in a controlled environment. The air and water temperatures must not exceed rated limits.
Remove Material Located Between Cube Deflector and Troughs
Electrical power is supplied through a cord connected to the unit. All local codes must be followed.
Pre-installation:
1. Inspect the place where the ice machine is to be installed. Check for: space for the cabinet, water supply, drain availability and electrical power supply. No extension cords are allowed. The building drain inlet must be lower than the drain outlet(s) at the back of the ice machine. The water supply must have a hand shut off valve accessible when the unit is installed. 2. Determine the method of installation, is the machine to be installed under the counter? Is the drain in the floor under the machine? Is the water inlet valve accessible? Unpack and Assemble 1. Remove legs and scoop from storage bin. 2. Remove shipping materials from ice making area.
3. Place corner posts from the shipping carton on the floor behind the ice machine. Tip the ice machine on its back and remove the shipping skid. 4. Screw the legs into the threaded holes in the base of the ice machine. 5. Tip the ice machine back to an upright position.
January 2003 Page 4
SCE275
Installation
For The Plumber
Begin by planning the installation and obtaining the needed supplies:
3 3 3 8 4 4
" soft copper tubing " rigid drain tubing " FPT fitting for bin/reservoir drain connection
1 2 3
" FPT fitting for condenser drain connection
" FPT fitting for water cooled condenser inlet connection 1. Connect cold potable water to the 3 8" male flare at the back of the cabinet. A water filter and hand shut off valve is recommended. Flush the water line prior to connecting to the ice machine.
8
A loop of copper tubing may be used between the ice machine and the water supply. This will allow the ice machine to be pulled out from its installed location without disconnecting the water line. No back-flow preventer should be needed in the inlet potable water line because provision for that is incorporated in this N.S.F. listed product (the water valve outlet is above the reservoir wall and cannot siphon). 2. Connect a drain tube to each drain connection (water cooled drain must be separate). 3. Route the drain tubes to the building drain receptacle. CONFORM TO ALL LOCAL CODES
If water cooled, connect a separate water inlet line to the water cooled condenser inlet fitting. It should also have a hand shut off valve.
Plumbing Connections, Water Cooled Shown
Reservoir & Bin Drain
Water Cooled Inlet
Field Supplied Filter and Hand Valve Potable Water Inlet
Water Cooled Drain ... |
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