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Summary of Contents for LTI DI-FT Series
- Page 1 OPERATION/MAINTENANCE MANUAL DI-FT FT SERIES FROST TOP SYSTEM CUSTOM FABRICATORS OF FOODSERVICE EQUIPMENT 1947 Bill Casey Parkway ● Jonesboro, GA 30236 Tel: 1 (888) 584-2722 ● Fax: 1 (770)-471-3715 www.lowtempind.com 2022...
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Page 2: Table Of Contents
Table of Contents INSPECTION ......................3 SAFETY PRECAUTIONS ..................3 INSTALLATION INSTRUCTIONS ................5 OPERATING INSTRUCTIONS ................... 6 START UP ......................6 OPERATION ......................7 CLEANING INSTRUCTIONS ..................10 PREVENTATIVE MAINTENANCE ................11 TROUBLESHOOTING ..................... 12 REPLACEMENT PARTS ..................13 DIAGRAMS ...................... -
Page 3: Inspection
SAFETY PRECAUTIONS This manual includes safety and operating instructions for Frost Top (FT) series system. LTI recommends reading all safety precautions and statements to ensure safe operation before installing and operating. Below are the precautions that are explained in more detail. Please read carefully. - Page 4 WARNING NOTICE: • Units are voltage specific. Refer to ELECTRIC SHOCK HAZARD • Unit must be installed by a qualified specifications label for electrical electrician. Installation must requirements before installation. conform to all local electrical codes. • Use non-abrasive cleaners and In the absence of local codes, use the latest version of the National cloths only.
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Page 5: Installation Instructions
INSTALLATION INSTRUCTIONS LTI FT Series are self-contained units designed for short term display and of food and desserts. The units are designed to help maintain product temp for short periods of time and are dependent upon the ambient temperature in which they are installed and product temperature when it is placed in the unit. -
Page 6: Operating Instructions
2" 2" 3" PLAN VIEW 24" OR *22"* 3/4" 3/4" OPEN OPEN DRAIN DRAIN Unit Volts/ Amps NEMA Model # Length Length Cut-Out Size Comp. Phase (120V) Plug L’ DI-FT-18-26-X 30” 26” 21 1/4 X 29 1/4 120V/1 5-15 DI-FT-20-25-X 29”... -
Page 7: Operation
OPERATION The system temperature is controlled by the pressure control which is located inside the compressor housing. The TXV metering device controls the flow of refrigerant to the evaporator of the unit. The low pressure control (physically located in the front of the compressor compartment) is used to cycle off the compressor. - Page 8 DIGITAL PRESSURE CONTROLLER ALARM MENU UP & DOWN START START SERVICE • SET – To display target set point, in programming mode it selects a parameter or confirm an operation. • START- (RESTART) It depends on the rSC parameter; with rSC=rSt it allows a manual restart and ad “dead band reset”;...
- Page 9 MECHANICAL PRESSURE CONTROL 10" RANCO MODEL 012-4834-000 DUAL PRESSURE CONTROL NUMBER OF POLES: CONTACT ACTION: (CONTROL LOW PRESS. SIDE) OPEN ON LOW, CLOSE ON HIGH (SAFETY HIGH PRESS. SIDE) CLOSE ON HIGH, OPEN ON LOW LOW PRESSURE SIDE CUT-IN SETTING RANGE: 10"...
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Page 10: Cleaning Instructions
CLEANING INSTRUCTIONS To maintain the performance and finish of the unit clean the unit daily. Make sure to use cleaning supplies and cleaners designed for cleaning stainless-steel surfaces. Stainless steel: Use soft cloths, microfiber, sponges, or plastic scouring pads. Avoid using scrapers wire brushes, steel wool or anything that might scratch the surface. -
Page 11: Preventative Maintenance
PREVENTATIVE MAINTENANCE To ensure that your equipment will continue to operate properly follow these simple steps. • The unit should be cleaned thoroughly every day. Excess food spillage left can cause damage to the unit. Where applicable clean unit daily. •... -
Page 12: Troubleshooting
TROUBLESHOOTING REFRIGERANT TROUBLESHOOTING COMPLIANT PROBLEM SOLUTION LINES DISCONNECTED / SWITCH OPEN CLOSE START ON DISCONNECT SWITCH FUSE REMOVED OR BLOWN REPLACE FUSE COMPRESSOR WILL NOT START CONTROL STUCK IN OPEN POSITION REPAIR OR REPLACE CONTROL CONTROL OFF DUE TO COLD LOCATION RELOCATE CONTROL LOW VOLTAGE TO UNIT CALL POWER SUPPLIER... -
Page 13: Replacement Parts
REPLACEMENT PARTS ITEM NO. DESCRIPTION STOCK NO. MFG NO. MANUFACTURER AE2420-AA1BXM CONDENSING UNIT 311937 TECUMSEH (BOM-2E294-1) AE2415Z-AA1ASC CONDENSING UNIT 311936 TECUMSEH (BOM-32F328-59S) COMPRESSOR 311937 AE1322E-679-J7 TECUMSEH AE2420Z-DS1B COMPRESSOR AE2415- 311936 BM AE1157E-679-J7 TECUMSEH AA1A PRESSURE CONTROL 280610 012-4834-000 RANCO DIGITAL PRESSURE TECUMSEH 311938 DIXELL... -
Page 14: Diagrams
DIAGRAMS DI-FT WIRING DIAGRAM NOTE ALL COMPONENTS WIRING DIAGRAM FOR DI-FT REFRIGERATION TO BE GROUNDED UNIT WITH MECHANICAL PRESSURE CONTROL... - Page 15 DI-FT WIRING DIAGRAM DIGITAL PRESSURE CONTROL NOTE ALL COMPONENTS TO BE GROUNDED NOTE ALL COMPONENTS TO BE GROUNDED WIRING DIAGRAM FOR DI-FT REFRIGERATION UNIT WITH DIGITAL PRESSURE CONTROL...
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Page 19: Warranty
Effective date July 1 , 2020 The LTI parts and labor warranty for all products is (1) year for all products (some product families have total of two-year parts and labor); The warranty period commences with the date of installation, or six (6) months from date of shipment from the factory, whichever is sooner.
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