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Structural Concepts Impulse Series Installation & Operating Manual

Service drop-in refrigerated merchandisers with straight glass
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READ AND SAVE THESE INSTRUCTIONS
INSTALLATION &
OPERATING MANUAL
Model
DGS3623R
Model
DGS2430R
888 E. Porter Road · Muskegon, MI 49441 Phone: 231.798.8888 Fax: 231.798.4960 www.structuralconcepts.com
SERVICE DROP-IN
REFRIGERATED
MERCHANDISERS WITH
STRAIGHT GLASS
Model
DGS4830R
Note: See Next Page For:

Dimensions of All Models
Covered By This Manual

Counter (Base) Cutout
Dimensions For All
Drop-In Units
P/N 20-31140
Rev A Date: 8.28.2013

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Summary of Contents for Structural Concepts Impulse Series

  • Page 1 READ AND SAVE THESE INSTRUCTIONS SERVICE DROP-IN INSTALLATION & REFRIGERATED MERCHANDISERS WITH OPERATING MANUAL STRAIGHT GLASS Model DGS3623R Model DGS2430R Model DGS4830R Note: See Next Page For:  Dimensions of All Models Covered By This Manual  Counter (Base) Cutout Dimensions For All Drop-In Units P/N 20-31140...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS OVERVIEW / TYPE / COMPLIANCE / WARNINGS / PRECAUTIONS / WIRING ……...….……..….. CUSTOMER CABINET PROVISIONS…………………..…………………..…….…………..…………... CLEARANCE AND AIR FLOW ...………………………..…………………..…….…………..…………..VENTING INSTRUCTIONS FOR AIR INTAKE / EXHAUST (FOR ALL CASES) ..………..………….. INSTALLATION: SKID REMOVAL / LOWERING INTO COUNTER (BASE) / SEALING ..…………….. START-UP AND OPERATION / TEMPERATURE SETTINGS / THERMOMETER .…..…………….….

  • Page 3: Overview / Type / Compliance / Warnings / Precautions / Wiring - Page 1 Of 2

    If unsure if unit is NType 1 or 2, see tag next to serial label. See SERIAL LABEL LOCATION &  These Structural Concepts merchandisers are INFORMATION LISTED / TECH INFO & SERVICE designed to merchandise packaged products at 41 °F section in this manual for sample serial labels.
  • Page 4 OVERVIEW / TYPE / COMPLIANCE / WARNINGS / PRECAUTIONS / WIRING - PAGE 2 of 2 PRECAUTIONS WIRING DIAGRAM   Following are important precautions to prevent Each case has its own wiring diagram folded and in damage to unit or merchandise. its own packet.

  • Page 5: Customer Cabinet Provisions

    CUSTOMER CABINET PROVISIONS Customer Cabinet Provisions  Customer provided cabinet must adhere to the minimum requirements in ANSI/UL Std. 471 and ANSI/ NSF Std. 7.  Among the factors that are to be taken into consideration when judging the acceptability of a cabinet or similar enclosure are mechanical strength, resistance to impact, moisture-absorptive properties, flame resistance, resistance to distortion at temperatures to which the material may be subjected under conditions of use, and resistance to corrosion.

  • Page 6: Clearance And Air Flow

    CLEARANCE AND AIR FLOW Service Top Cutout Dimensions Note: See Manual Cover for Service Top Cutout Dimensions. Clearance Dimensions The Refrigerated section must maintain airflow clearance. Dimensions are as follow. 1. 4" Minimum Spacing from bottom of refrigeration frame to bottom of cabinet or floor required for adequate air flow. 2.

  • Page 7: Venting Instructions For Air Intake / Exhaust (For All Cases)

    VENTING INSTRUCTIONS FOR AIR INTAKE / EXHAUST - ALL CASES ILLUSTRATION BELOW REFLECTS REAR VIEW OF CABINET AFTER POSITIONED ON CUSTOMER-SUPPLIED COUNTER/BASE WARNING!: The MINIMUM intake and exhaust areas must be allowed (as illustrated below) or case temperatures may fluctuate beyond safe parameters! NOTES: 1.

  • Page 8: Installation: Skid Removal / Lowering Into Counter (Base) / Sealing

    INSTALLATION: SKID REMOVAL / LOWERING INTO COUNTER (BASE) / SEALING 1. Remove Case From Skid Caution: Case must always remain supported or center of gravity may allow case to fall. Slide to rear of skid and tip backward off skid while Seal maintaining support.

  • Page 9: Start-Up And Operation / Temperature Settings / Thermometer

    START-UP AND OPERATION / TEMPERATURE SETTINGS / THERMOMETER 1. Case Start-Up 2. Temperature Settings   Plug cord into a certified electrical outlet with This case has been tested to maintain a ground. temperature at or below 41 °F (5 °C) ...

  • Page 10: Maintenance Fundamentals: Shelf / Shelf Removal / Mini-Led Light Fixtures

    Illustration Below) Removal of lamp:  This case is provided with LED lights which will rarely require change-out.  Contact Structural Concepts’ Technical Service Department for replacement parts (see the Technical Service section of this operating manual). Replacement of lamp: ...

  • Page 11: Maintenance Fundamentals: T-8 Light Fixtures / Key (Front Access)

    MAINTENANCE FUNDAMENTALS: T-8 LIGHT FIXTURES / KEY (FRONT ACCESS) 1. T-8 Fluorescent Light Fixtures Removal of lamps:  Grasp lamp firmly and carefully pull downward and out from socket.  See photos at right. Installation of lamp:  Align pins with slot. ...

  • Page 12: Maintenance Fundamentals: Removing Rear Doors / Hinged Door

    MAINTENANCE FUNDAMENTALS: REMOVING REAR DOORS / HINGED DOOR 2. Hinged Door > Warning! Disconnect power before providing  maintenance and service to unit. Your model may have a hinged door. > Assembly or disassembly and servicing to be  Simply grasp handle and open. ...

  • Page 13: Maintenance Fundamentals: Evaporator Coil Fans Access And Removal

    MAINTENANCE FUNDAMENTALS: EVAPORATOR COIL FANS ACCESS AND REMOVAL Evaporator Coil Fans Access and Removal Warning! Disconnect power before providing  maintenance and service to unit. Assembly or Fans may be accessed by removing Deck disassembly and servicing to be accomplished (covering Fan Shroud, Fan Housing and Coil).

  • Page 14: Refrigeration Fundamentals: Access To Condenser Coil / Servicing

    REFRIGERATION FUNDAMENTALS: ACCESS TO CONDENSER COIL / SERVICING / MODULE Refrigeration Access, Connections & Servicing in 110V receptacle inside base, and positioned under PVC drain and on base frame. 1. Access to Condenser Coil for Cleaning  When pulling or pushing unit in or out under the ...

  • Page 15: Condensate Package Exploded Pictorial (Applicable To Model Dgs48Xxr)

    CONDENSATE PACKAGE EXPLODED PICTORIAL (APPLICABLE TO MODEL DGS48XXR) The following images show the various parts pertaining to the refrigeration unit (that is slid directly out from lower section) to be serviced. Receiver Condensing Coil (and Internal Fan and Motor) Refrigeration Package Pan Dryer Filter Sight Glass...

  • Page 16: Condensate Package Exploded Pictorial (Applicable To Dgs24Xxr & Dgs36Xxr)

    REFRIGERATION SLIDE-OUT EXPLODED PICTORIAL CONDENSATE PACKAGE EXPLODED PICTORIAL (APPLICABLE TO DGS24XXR & DGS36XXR) The following images show the various parts pertaining to condensate package (slid directly out from lower section) to be serviced. Condensing Coil (and Internal Fan and Motor) Receiver Copper Tubing...

  • Page 17: Serial Label Location & Information Listed / Tech Info & Service

     For additional technical information and service, see the TECHNICAL SERVICE page in this manual for instructions on contacting Structural Concepts’ Technical Service Department.  See images below for samples of both refrigerated and non-refrigerated serial labels.

  • Page 18: Troubleshooting (By Trained Service Providers Only)

    TROUBLESHOOTING (TO BE PERFORMED BY TRAINED SERVICE PROVIDERS ONLY) - PAGE 1 of 3 CONDITION TROUBLESHOOTING See Installation Section for instructions on properly aligning case (alongside other Case Not Lining cases) and adjusting levelers. Water Is On The Caution! Water on flooring can cause much damage! Until cause is determined (and Floor repaired), follow these procedures: ...
  • Page 19 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 20 TROUBLESHOOTING (TO BE PERFORMED BY TRAINED SERVICE PROVIDERS ONLY) - PAGE 3 of 3 CONDITION TROUBLESHOOTING Case Lights Are Not Check that light switch is in the on position. Working Check that ALL of the light cords and plugs are properly connected. See MAINTENANCE - LIGHT FIXTURES (LED LIGHT FIXTURES) section.

  • Page 21: Troubleshooting (By Trained Service Providers Only) - Condensing System

    TROUBLESHOOTING (BY TRAINED SERVICE PROVIDERS ONLY) - CONDENSING SYSTEM CONDITION TROUBLESHOOTING Head Pressure Too Check that the Condensing Coil is not dirty or covered. High Check that Condensing Fans are working. Check that refrigerant is not overcharged. Check to verify that a non-condensable is not in the system. Check that Liquid Line Drier is not plugged.

  • Page 22: Troubleshooting (By Trained Service Providers Only) - Evaporator System

    TROUBLESHOOTING (BY TRAINED SERVICE PROVIDERS ONLY) - EVAPORATOR SYSTEM CONDITION TROUBLESHOOTING Low Suction Pressure Check that the Refrigerant doesn’t have a low charge. Check that Expansion Valve (TXV Valve) isn’t restricted. Check that Liquid Line or Filter isn’t restricted. Check that Evaporator Motors are working. Check that High Superheat doesn’t need adjusting.

  • Page 23: Cleaning Schedule

    CLEANING SCHEDULE Cleaning Daily Weekly Monthly Task Clean outside surface of front curved glass with a Clean Case Exterior household or commercial glass cleaner. Clean wood, laminate and painted surfaces with a mild soap and water solution and a soft cloth . Remove rear panel.
  • Page 24 Read And Save These Instructions - Page 1 of 3 Integrated Electronic Microprocessor Controller Programming The Instrument ▲ mute To Modify The Setpoint ▼ 1. Press and hold the “SET” key for at least 1 second. 2. Use arrow keys ▲ ▼ on temperature ▲...
  • Page 25 Read And Save These Instructions - Page 2 of 3 Integrated Electronic Microprocessor Controller User Interface - Display Summary Table of Alarm and Signals: Display, Buzzer and Relay reset alarms w/manual reset / reset HACCP alarms / reset temp. monitoring...

  • Page 26: Carel® Temperature Controller Information

    Read And Save These Instructions - Page 3 of 3 Integrated Electronic Microprocessor Controller Summary Table of Operating Parameters CODE PARAMETER UOM* TYPE MINIMUM MAXIMUM DEFAULT Select Celsius (°C) or Fahrenheit (°F) flag Calibration of probe 1 °C/°F Calibration of probe 2 °C/°F For Case Specific...

  • Page 27: Technical Service Contact Information & Warranty Information

    LIMITED WARRANTY All sales by Structural Concepts Corporation (SCC) are subject to the following limited warranty. “Goods” refers to the product or products being sold by SCC. Warranty Scope: Warranty is for equipment sold in the United States, Canada, Mexico and Puerto Rico. Equipment sold elsewhere may carry modified warranty.

This manual is also suitable for:

Impulse dgs3623rImpulse dgs2430rImpulse dgs4830rImpulse! series

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