UnderCounter Ice Machines Installation, Operation and Maintenance Manual Part Number: 04002909 Rev02 4/16
Safety Notices Safety Notices Read these precautions to prevent personal injury: • • • • • nWarning Follow these precautions to prevent personal injury during installation of this equipment: Read this manual thoroughly before operating, installing or performing maintenance on the equipment. Failure to follow instructions in this manual can cause property damage, injury or death. Routine adjustments and maintenance procedures outlined in this manual are not covered by the warranty.
n Warning Follow these precautions to prevent personal injury while operating or maintaining this equipment: • Read this manual thoroughly before operating, installing or performing maintenance on the equipment. Failure to follow instructions in this manual can cause property damage, injury or death. • Moisture collecting on the floor will create a slippery surface. Clean up any water on the floor immediately to prevent a slip hazard.
Table of Contents Safety Notices Safety Notices...................................................................................................................... 3 Section 1 General Information Model Numbers................................................................................................................... 7 Shipping Weight......................................................................................................................................7 Accessories...................
Table of Contents (continued) Section 3 Operation Touch Pad Features...........................................................................................................13 Ice Making Sequence of Operation..................................................................................14 Safety Limits........................................................................................................................................... 14 Section 4 Maintenance Interior Cleaning and Sanitizing.....
Section 1 General Information Model Numbers Accessories This manual covers the following models: Contact your Manitowoc distributor for these optional accessories: Self-Contained Air-Cooled UD0140A UD0140AE UY0140A UY0140AE UR0140A UR0140AE UD0190A UD0190AE UY0190A UY0190AE UR0190A UR0190AE UD0240A UD0240W UD0240AE UY0240A UY0240AE UR0240A UR0240AE UD0310A UD0310AE UY0310A UY0310AE UR0310A UR0310AE Self-Contained Water-Cooled UD0140W UY0140W UD0240WE UY0240W UY0240WE UD0310W UY0310W UR0310W SHIPPING
General Information Section 1 THIS PAGE INTENTIONALLY LEFT BLANK 8 Part Number: 04002909 Rev02 4/16
Section 2 Installation Location of Ice Machine The location selected for the ice machine must meet the following criteria. If any of these criteria are not met, select another location. Series Ice Machine U140 U190 U240 U310 Ice Machine Heat of Rejection* Air Conditioning** Peak 2400 2900 2200 2600 2400 3400 3800 6000 • The location must be indoors. • The location must be free of airborne and other contaminants. • The air temperature must be at least 40°F (4°C), but must not exceed 110°F (43°C).
Installation Section 2 Electrical Service VOLTAGE The maximum allowable voltage variation is ±10% of the rated voltage on the ice machine model/serial number plate at start-up (when the electrical load is highest). The 115/1/60 ice machines are factory pre-wired with an 8' power cord and NEMA 5-15P-plug configuration. The 208-230/1/60 and 230/50/1 ice machines are factory pre-wired with an 8' power cord only, no plug is supplied.
Section 2 Installation Water Service/Drains WATER SUPPLY Local water conditions may require treatment of the water to inhibit scale formation, filter sediment, remove chlorine, and improve taste and clarity. DRAIN CONNECTIONS Follow these guidelines when installing drain lines to prevent drain water from flowing back into the ice machine and storage bin: • Drain lines must have a 1.5 inch drop per 5 feet of run (2.5 cm per meter) and must not create traps.
Installation Section 2 Before Starting the Ice Machine WATER/DRAIN CONNECTIONS All Manitowoc ice machines are factory-operated and, normally, new installations do not require any adjustment. A. Potable Water Inlet B. Drain C. Condenser Water Inlet - (Water-cooled Only) D. Condenser Water Outlet - (Water-cooled Only) Starting the ice machine and completing the Operational Checks are the responsibilities of the owner and operator.
Section 3 Operation Touch Pad Features DELAY The touch pad offers a series of pressure sensitive buttons to control ice machine operation and provide operational status. Pressing the Delay button will start a delay period. The ice machine will finish the freeze and harvest cycle and then start the delay period.
Operation Ice Making Sequence of Operation NOTE: The On/Off button must be depressed and the ice damper must be closed before the ice machine will start. Water Purge Cycle The ice machine purges any remaining water from the water trough down the drain. Freeze Cycle Prechill - The refrigeration system chills the evaporator before water flow over the evaporator starts. The water inlet valve energizes during the pre-chill and remains on until the ice thickness float switch is satisfied.
Section 4 Maintenance Interior Cleaning and Sanitizing GENERAL Clean and sanitize the ice machine every six months for efficient operation. If the ice machine requires more frequent cleaning and sanitizing, consult a qualified service company to test the water quality and recommend appropriate water treatment. The ice machine must be taken apart for cleaning and sanitizing. Step 1 Press the On/Off button after ice falls from the evaporator at the end of a harvest cycle.
Maintenance Section 4 Step 5 Mix a solution of cleaner and warm water. Depending on the amount of mineral buildup, a larger quantity of solution may be required. Use the ratio in the table below to mix enough solution to thoroughly clean all parts. Solution Type Water Cleaner 1 gal. (4 l) Mixed with 16 oz (500 ml) cleaner ,Caution Do not immerse electrical connectors or motors for any components in water, cleaner, or sanitizer solutions.
Section 4 Maintenance REMOVE PARTS FOR CLEANING Thumbscrew & Thermistor Bracket A. Remove the ice thickness and harvest float switch. Pull forward on the bottom of the bracket until clear of the tab, then slide bracket upward to remove the bracket and float switch as an assembly. NOTE: At this point, the component can easily be cleaned. If complete removal is desired, follow the wires to the bulkhead grommet (exit point) in the back wall.
Maintenance Section 4 PREVENTATIVE MAINTENANCE CLEANING This cleaning procedure can be performed between the biannual cleaning and sanitizing cycles. This procedure does not require removing the ice from the bin. CLEANING THE CONDENSER A dirty condenser restricts airflow, resulting in excessively high operating temperatures. This reduces ice production and shortens component life. Step 1 Press the On/Off button after ice falls from the evaporator at the end of a Harvest cycle.
Section 5 Troubleshooting Checklist If a problem arises during operation of your ice machine, follow the checklist below before calling service. Routine adjustments and maintenance procedures are not covered by the warranty. Problem To Correct Replace the fuse/reset the breaker/turn on the main switch/plug power cord into receptacle. Ice machine does not operate. Ice machine needs to be turned on. Press the On/Off button to start ice making. Damper in open position (down).
Troubleshooting Section 5 Problem Low ice capacity. Possible Cause The condenser is dirty. High air temperature around ice machine (air-cooled models). Inadequate clearance around the ice machine. Objects stacked around ice machine, blocking airflow to condenser (air-cooled models) Hot incoming water. Incorrect incoming water pressure. Water pressure is too low or water filter is restricted. To Correct Clean the condenser. Air temperature must not exceed 110°F (43°C). Provide adequate clearance.
MANITOWOC FOODSERVICE – ICE MACHINE DIVISION 2110 SOUTH 26TH STREET, MANITOWOC, WI 54220 800-545-5720 WWW.MANITOWOCICE.COM Every new piece of Manitowoc Foodservice equipment comes with KitchenCare™ and you choose the level of service that meets your operational needs from one restaurant to multiple locations.
