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READ AND SAVE THESE INSTRUCTIONS
®
USER
SCC P/N
MANUAL
99523
SELF-CONTAINED REFRIGERATED SERVICE / SELF-SERVICE MERCHANDISERS
Model COU2757R Shown
With Product For Illustrative
Purposes Only
Model COU2757R
Model COU2757R.3748
Model COU2757R.4031
Model COU2757R.5427
Structural
Concepts Corp. ∙ 888 E. Porter Rd ∙ Muskegon, MI 49441 Phone: 231.798.8888 Fax: 231.798.4960 ∙ www.structuralconcepts.com
REV S DATE: 08/22/2022
USER MANUALS\99523_OASIS_USER MANUAL_COU2757R_3748_4031_5427_REF_SVC_SELF-SVC_CASE
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Summary of Contents for Structural Concepts Oasis COU2757R
- Page 1 Oasis READ AND SAVE THESE INSTRUCTIONS ® USER SCC P/N MANUAL 99523 SELF-CONTAINED REFRIGERATED SERVICE / SELF-SERVICE MERCHANDISERS Model COU2757R Shown With Product For Illustrative Purposes Only Model COU2757R Model COU2757R.3748 Model COU2757R.4031 Model COU2757R.5427 Structural Concepts Corp. ∙ 888 E. Porter Rd ∙ Muskegon, MI 49441 Phone: 231.798.8888 Fax: 231.798.4960 ∙ www.structuralconcepts.com REV S DATE: 08/22/2022 USER MANUALS\99523_OASIS_USER MANUAL_COU2757R_3748_4031_5427_REF_SVC_SELF-SVC_CASE...
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Page 2: Table Of Contents
TABLE OF CONTENTS OVERVIEW / TYPE / COMPLIANCE / WARNINGS / PRECAUTIONS / WIRING ………..…………. SHIPPING SUPPORT REMOVAL / FRONT & REAR GRILLE REMOVAL / REMOVING CASE FROM SKID …………..….…………...…...…..…………………………………….…….………… CASE PLACEMENT / CASTER LOCKING & UNLOCKING OPERATION / START-UP AND OPERATION ……………………………………………………………………………………………. -
Page 3: Overview / Type / Compliance / Warnings / Precautions / Wiring - Page 1 Of 2
OVERVIEW / TYPE / COMPLIANCE / WARNINGS / PRECAUTIONS / WIRING - PAGE 1 of 2 OVERVIEW • NSF/ANSI Type I Conditions: Product is displayed in store conditions with maximum ambient temperature of • The upper (service) section of this case is designed to 75 °F (24 °C) and relative humidity of 55%. - Page 4 See previous page for specifics on OVERVIEW, • This disclosure statement has been reviewed and TYPE, COMPLIANCE and WARNINGS. approved by Structural Concepts and Structural Concepts attests, under penalty of perjury, that these WIRING DIAGRAM statements are true and accurate.
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Page 5: Shipping Support Removal / Front & Rear Grille Removal / Removing Case
SHIPPING SUPPORT REMOVAL / FRONT & REAR GRILLE REMOVAL / REMOVING CASE FROM SKID 1. Removing Caster Shipping Support (or • For units with casters, the case may be rolled off Shipping Support Bracket) Attached To Skid skid via ramp (as shown below-right) and into position. -
Page 6: Case Placement / Caster Locking & Unlocking Operation
CASE PLACEMENT / CASTER LOCKING & UNLOCKING OPERATION / START-UP AND OPERATION 1. Caster Locking / Unlocking Operation • When case is in start-up mode or has been idle • If casters have locking feature, they may be for a long period of time, the unit will require locked to prevent case from moving (after case 75-minutes running time to pull-down has been moved into position). -
Page 7: Maintenance Fundamentals
MAINTENANCE FUNDAMENTALS Removing the Front Panel • Lifting the panel from lower edge upward Channel Lip approximately a half inch into a channel lip, disengages the support taps on the lower edges. Upper Front Panel • Pivot out lower edge approximately one inch and lower panel to remove. -
Page 8: Light Fixtures
Adjust magnetic mounting clips so they are equally • LED lights rarely require change-out. spaced on LED light. • Contact Structural Concepts’ Technical Service • Reattach LED light assembly to its shelf/header. Department for replacement LED lights. • Position properly in shelf/header. -
Page 9: Electrical & Refrigeration Fundamentals
Carel® Controller in the technical information section of this operating manual. • If service is required to the temperature control unit, call Structural Concepts. This maintenance should be performed by a certified technician. Approximate Ballast locations (illustration may... -
Page 10: Refrigeration Fundamentals
REFRIGERATION FUNDAMENTALS Evaporator fan access • Remove lower decking. A finger hole is provided to assist in lifting up and pulling out deck. Expansion valve access • Remove lower decking. A finger hole is provided to assist in lifting up and pulling out deck. •... -
Page 11: Serial Label Location & Information Listed / Technical Info & Service
For additional technical information and service, see (on the header, near thermostat, at case rear, the TECHNICAL SERVICE page in this manual for behind panels/toe-kicks, on electrical boxes, etc.). instructions on contacting Structural Concepts’ • Serial labels contain electrical, temperature and Technical Service Department. -
Page 12: Cleaning Schedule (To Be Performed By Store Personnel)
CLEANING SCHEDULE (TO BE PERFORMED BY STORE PERSONNEL) WARNING! TURN OFF POWER TO CASE BEFORE PERFORMING PREVENTIVE MAINTENANCE! Freq. Instructions Daily Glass / Mirrors: Clean with household or commercial glass cleaner. Daily Acrylic: Clean with a warm water and mild soap solution and soft cloth. Never use ammonia-based cleaners (or regular glass cleaner) on acrylic. -
Page 13: Cleaning Schedule (To Be Performed By Trained Service Providers Only)
CLEANING SCHEDULE (TO BE PERFORMED BY TRAINED SERVICE PROVIDERS ONLY) WARNING! TURN OFF POWER TO CASE BEFORE PERFORMING PREVENTIVE MAINTENANCE! Freq. Instructions Qtly Condensing Coil: Using air pressure or an industrial strength vacuum, clean the dust and dirt that may collect on the condenser coil. It may be necessary to use a soft-bristled brush to loosen up caked dust and debris that may form on coil. -
Page 14: Preventive Maintenance - Honeycomb Air Diffusers
PREVENTIVE MAINTENANCE - HONEYCOMB AIR DIFFUSERS (TRAINED SVC. PROVIDERS ONLY) solution. Submerse if necessary. Use brush to Honeycomb Air Diffuser Removal dislodge stubborn or sticky residue. Dry by using See PREVENTIVE MAINTENANCE (TO BE vacuum’s blow mode (vs. suction mode). PERFORMED BY TRAINED SERVICE PROVIDER) section in this manual for cleaning frequency. -
Page 15: Troubleshooting (To Be Performed By Store Personnel) - Page 1 Of 2
TROUBLESHOOTING (TO BE PERFORMED BY STORE PERSONNEL) - PAGE 1 of 2 Product is Drying Out Check the relative humidity in the store. Water on the Floor Check that the drain is correctly positioned over condensate pan. Check that condensate overflow pan is plugged in. Check that drain and drain trap do not have debris in them. - Page 16 TROUBLESHOOTING (TO BE PERFORMED BY STORE PERSONNEL) - PAGE 2 of 2 Controller Display Flashing If display is flashing, see PROGRAMMABLE CONTROLLER section in this User Manual. Not Holding Temperature If a large amount of warm product was added to the case, it will take time for the temperature to adjust.
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Page 17: Troubleshooting (To Be Performed By Trained Service Providers Only) - Page 1 Of 3
TROUBLESHOOTING (TO BE PERFORMED BY TRAINED SERVICE PROVIDERS ONLY) - PAGE 1 of 3 CONDITION TROUBLESHOOTING Water Is On The Caution! Disruption of power can cause water to overflow pan and seep onto Floor flooring causing damage! Check that power to case is constant. Until power is restored, follow these procedures: •... - Page 18 TROUBLESHOOTING (TO BE PERFORMED BY TRAINED SERVICE PROVIDERS ONLY) - PAGE 2 of 3 CONDITION TROUBLESHOOTING Fan Emits Excessive Check that the case is aligned, level and plumb. Noise Check evaporator fan for cleanliness. Unplug/power off fan motors. Check motor shaft for bearing wear. Check that fan motors are securely mounted in brackets.
- Page 19 TROUBLESHOOTING (TO BE PERFORMED BY TRAINED SERVICE PROVIDERS ONLY) - PAGE 3 of 3 CONDITION TROUBLESHOOTING Case Lights Are Not Check that light switch is on. See START-UP AND OPERATION in this manual for Working location. Check that ALL of the light cords and plugs are properly connected. See MAINTENANCE FUNDAMENTALS section in this manual.
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Page 20: Troubleshooting (By Trained Service Providers Only) - Condensing System
TROUBLESHOOTING (BY TRAINED SERVICE PROVIDERS ONLY) - CONDENSING SYSTEM CONDITION TROUBLESHOOTING Head Pressure Too High Check that the condensing coil is not dirty or covered. Check that condensing fans are working. Check that refrigerant is not overcharged. Perform sub-cooling check and verify that no contaminates are in system. Check that liquid line filter dryer is not plugged. -
Page 21: Troubleshooting (By Trained Service Providers Only) - Evaporator System
TROUBLESHOOTING (BY TRAINED SERVICE PROVIDERS ONLY) - EVAPORATOR SYSTEM CONDITION TROUBLESHOOTING Low Suction Pressure Check if sight glass is flashing or showing low charge. Check that expansion valve (TXV) isn’t restricted. Check element charge. Check that liquid line or filter isn’t restricted. Check that refrigeration lines and/or hoses are not kinked on either high or low sides. -
Page 22: Illustrated Parts Breakdown - Cou2757R
ILLUSTRATED PARTS BREAKDOWN - MODEL COU2757R & COU2757R.3748 NOTE: DUE TO OPTIONS AND FEATURES THAT MAY BE CHOSEN BY CUSTOMER, ILLUSTRATED PARTS BREAKDOWN SHOWN MAY NOT EXACTLY REFLECT YOUR PARTICULAR MODEL. -
Page 23: Parts List - Cou2757R
PARTS LIST - MODEL COU2757R & COU2757R.3748 Top Cap Front Panel Rocker Switch Bumper Insert End Glass Front Grille Shelf, Glass Bumper End Cap Curved Front Glass Temperature Controller Shelf Light Fan Motor, Evaporator Lamp Bulb Deck Pan ABS Decks Rear Grille End Panel Rear Door... -
Page 24: General Layout Of Condenser Package
GENERAL LAYOUT OF CONDENSER PACKAGE Note: Condenser Package Layout Shown Below is Used Primarily on Model COU2757R Units. Illustration Shown May Not Exactly Reflect Every Feature or Component of Your Unit. Condenser Fan Motor, Condenser Coils Fan Blades and Guard Receiver Evaporator Pan (and Hot Gas Loop) -
Page 25: Programmable Controller Information
PROGRAMMABLE CONTROLLER (SELECT, CLICK ON OR SCAN QR CODE FOR INFORMATION) Determine Which Programmable Controller Is On Your Case (Controllers That Are Commonly Used By Structural Concepts Are Shown Below). Your Particular Programmable Controller May Differ. Carel® ir33 Platform Carel® PJEZ Platform Dixell®... -
Page 26: Technical Service Contact Information / Warranty Information
STRUCTURAL CONCEPTS TECHNICAL SERVICE CONTACT INFORMATION & LIMITED WARRANTY YOU MUST HAVE THE FOLLOWING INFO AVAILABLE TECH SERVICE/WARRANTY CONTACT INFO: BEFORE CONTACTING STRUCTURAL CONCEPTS: 1 (800) 433-9490 / EXTENSION 1 SERIAL NO. / MODEL NO. / STORE NO. / STORE...
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