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ZERO ZONE
CRYSTAL MERCHANDISER
FREEZERS
®
RVLC
With CoolView
Doors and ChillBrite
LED Lighting
®
®
INSTALLATION & OPERATION MANUAL
COMPLIANT
66-0025 REV G • Jun 2022

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Summary of Contents for Zero Zone CRYSTAL MERCHANDISER RVLC

  • Page 1 ZERO ZONE CRYSTAL MERCHANDISER FREEZERS ® RVLC With CoolView Doors and ChillBrite LED Lighting ® ® INSTALLATION & OPERATION MANUAL COMPLIANT 66-0025 REV G • Jun 2022...
  • Page 2: Table Of Contents

    Table of Contents ZERO ZONE WARRANTY ..................1 INTRODUCTION ..................... 2 INSTALLATION & OPERATION ................4 ƒ Delivery Inspection .................... 4 ƒ Packaging ......................4 ƒ Location ......................4 ƒ Moving Cases ....................5 Optional Bases ................... 5 ƒ ƒ...
  • Page 3: Zero Zone Warranty • 1

    Zero Zone that the compressor is inoperative due to defects in factory workmanship or material under normal use and services as outlined by Zero Zone in its Installation &...
  • Page 4: Introduction

    The information in this manual is subject to change without notice and does not represent a commitment on the part of Zero Zone. Zero Zone does not assume any responsibility for any errors that may appear in this manual. In no event will Zero Zone be liable for technical or editorial omissions made herein, nor for direct, indirect, special, incidental, or consequential damages resulting from the use or defect of this manual.
  • Page 5 INTRODUCTION Testing Standards These display cases were designed and tested using the following industry standards: NSF 7 – Commercial Refrigerators and Freezers (ANSI Approved) (equipment certified by NSF) ƒ NSF 51 – Food Equipment Materials (ANSI Approved) (equipment certified by NSF) ƒ...
  • Page 6: Installation & Operation

    Delivery Inspection Zero Zone display cases are carefully factory-tested, inspected, and packed to ensure delivery in the best possible condition. The equipment should be unwrapped and checked for damage immediately upon delivery. DAMAGE MUST BE NOTED AT TIME OF DELIVERY, AND ALL CLAIMS FOR DAMAGES MUST BE FILED WITH THE TRANSPORTATION COMPANY, NOT WITH ZERO ZONE.
  • Page 7: Moving Cases

    2). To use For low shipping height applications, Zero Zone has optional expandable bases to accommodate up to 1 3/4" thick forks a forklift on cases with expandable bases, raise the case with a Johnson bar and place wooden blocks under the case, allowing the base to expand enough for forks to be inserted.
  • Page 8: Leveling

    INSTALLATION & OpERATION  Spacer blocks are factory-installed in the end bases of 4 or 5-door cases that use bases taller than 3 1/2". These blocks limit the case's forward tilt while it is being lifted by a forklift (See Figure FIGURE 4: Spacer Block 4 3/8"...
  • Page 9  INSTALLATION & OpERATION FIGURE 7: Hat Channel Rail Orientation Base  Hat Channel Rail   Shim Position hat channel rails with tape up. Place shims perpendicularly under the hat channel rails. 2-door cases get 2 hat channel rails. ƒ...
  • Page 10 INSTALLATION & OpERATION FIGURE 10: RVLC30 Base Locations Drawings are top views with bases shown under the case. The front of the case is toward the bottom of the page. Case length does not include end panels (2 1/2" wide each). Back of Case Front of Case 2RVLC30...
  • Page 11 INSTALLATION & OpERATION FIGURE 11: RVLC30BB (Back-to-Back) Base Locations Drawings are top views with bases shown under the case. Case length does not include end panels (2 1/2" wide each). 3RVLC30BB 2RVLC30BB 4RVLC30BB 5RVLC30BB Installation & Operation • 9...
  • Page 12 INSTALLATION & OpERATION To maintain even, consistent gaps and proper door operation, the case must be leveled front-to-back and side-to-side. Ensure that the case is set square to within 1/8" (See Figure 12). After the case is set, use at least a 48" level to ensure the case is level. Add additional shims as needed under specific bases.
  • Page 13: Lineup Assembly

    Note: Total height of shims should be less than 3/4".     Lineup Assembly  Zero Zone display cases have been designed for continuous display so that multiple cases may be joined together to create a lineup of any     ...
  • Page 14 INSTALLATION & OpERATION The bottom of the end panels are protected by steel support plates, which must be unbolted and removed before the lineup is set. There are bolts that go up through the support plates into the underside of the foamed floor. A 1"...
  • Page 15: Case Joint Caulking (Butyl*)

    INSTALLATION & OpERATION Before joining the cases, remove all packaging material on the display case, including any spacer blocks inside the bases. Repeat caulking between each case in the lineup. FIGURE 16: Case Joint Caulking (Butyl*) Critical Area: Apply Apply caulk caulk along center across this of metal flanges...
  • Page 16: Nsf Compliance Sealing (Silicone)

    INSTALLATION & OpERATION FIGURE 17: NSF Compliance Sealing (Silicone) THIS PROCEDURE MUST BE FOLLOWED FOR NSF COMPLIANCE. SURFACES TO BE SEALED MUST BE CLEAN, DRY, FREE OF BUTYL CAULK, AND FREE OF FROST (ABOVE 40ºF). DR-297-A Note: Cases must be properly caulked and joined before NSF sealing. Wipe away any Butyl caulk that squeezes out of the case joint. Butyl caulk and silicone sealant will not mix, which affects the adhesion of both.
  • Page 17: Drain

    Condensate Removal System  Zero Zone remote cases can be equipped with a condensate removal system. The system uses a drain pan with pump located behind the kickplate and a condensate evaporation pan mounted on the top of the case.
  • Page 18: Top Trim Splice

    (See Figure 21). FINISH: SEE CHART (PER SP-0154) REVISION DESCRIPTION ECN No. DATE ZERO ZONE WORKMANS ASME Y14.41-2012 & A ALL DIMENSIONS 12552 12/29/2017 ADDED P32 AND P33 SIGNIFICANT DIMENSIONS DENOTED BY X DOOR HANDLES UPDATED DIMENSIONS WITH NEW TITLE BLOCK OR X.XXX AND MUST MEET Cpk ≥...
  • Page 19: Removing A Door

    INSTALLATION & OpERATION FIGURE 23: Door Tension Screw Open the door to observe current door tension. A properly tensioned door will close itself gently and not swing open. (See Figure 23). Use a flathead screwdriver to turn the door tension screw Do not use power tools;...
  • Page 20 INSTALLATION & OpERATION The wires to the hinge pin must be disconnected. Remove the wiring cover, disconnect the ground screw, and then pull the wires out of the door (See Figure 26). Pry the hinge pin out from the top of the door and tug on it to identify which wires need to be disconnected (See Figure 27).
  • Page 21: Shelves & Stocking Product

    INSTALLATION & OpERATION FIGURE 31: Torque Adjuster Locking Screw FIGURE 32: Empty Torque Adjuster Bracket Hold-Open Bolt Hold-Open Bolt 13. Reinstall the top trim piece and electrical raceway cover on top of the case. Shelves & Stocking Product Tilt the shelf sideways and bring it through the door. Level the shelf inside the case and tilt the back of the shelf down so the shelf tabs fit into the slots in the shelf standards.
  • Page 22: Refrigeration

    The TXV is not preset. Adjust the superheat setting for maximum coil effectiveness. Typical superheat settings are between 6°F and 10°F. Contact Zero Zone for superheat setting if using high-glide refrigerants. Cases connected to a condensing unit should use the higher superheat setting to minimize the chance of liquid flood back.
  • Page 23: Leak Check, Evacuation, & Charging

    REFRIgERATION Refrigeration risers should be sized to maintain proper refrigerant velocity and oil return. Zero Zone recommends one riser per refrigeration circuit on circuits utilizing hot gas defrost. Field piping must be 3" away from the defrost heater element on cases utilizing electric defrost.
  • Page 24: Defrost

    Note: Set points based on superheat of 6-8°F. For high-glide refrigerants, use dew point for unit sizing. Adjust evaporator pressure as needed to maintain discharge air temperature. To receive the full benefit of high-glide refrigerant properties, the superheat may need to be lowered to 4-6°F. Contact Zero Zone with questions.
  • Page 25: Electric Defrost - Components

    REFRIgERATION Electric defrost termination temperature is set at 50°F. At ASHRAE test conditions and 208V defrost heater operation, the observed defrost durations are typically 30 minutes for frozen food and 40 minutes for ice cream. Electric defrost termination sensors are located in the center of the evaporator coil.
  • Page 26: Hot Gas Defrost - Settings

    REFRIgERATION FIGURE 39: Heater Wires for 3-Phase Defrost HOT GAS DEFROST - SETTINGS See Figure 37 on page 22 for defrost settings. The timer starts the hot gas defrost cycle by energizing a solenoid, reversing valve, or directional valve. The hot gas is injected from the source into the suction line of the evaporator to be defrosted.
  • Page 27: Air Sensors & Case Thermometers

    The case sill has an anti-sweat heater. It is located under the front metal strike plate below the door opening. Contact the Zero Zone Service Department for questions about servicing anti-sweat heaters. Refrigeration • 25...
  • Page 28: Electrical

    ELECTRICAL ELECTRICAL General CAUTION! DISCOnnECT POWER TO THE CASE BEFORE SERVICInG ELECTRICAL COMPOnEnTS TO AVOID PERSOnAL InJuRY AnD DAMAGE TO THE unIT. The electrical box is mounted on the exterior top right of the case. It includes the power FIGURE 41: Light Switch connection and power supplies for the LED light sticks.
  • Page 29 ELECTRICAL FIGURE 42: Sample Wiring Diagram for Electric Defrost FIGURE 43: Sample Wiring Diagram for Hot Gas Defrost Electrical • 27...
  • Page 30: Maintenance

    Cleaning Although each Zero Zone display case is thoroughly cleaned before shipping, the cases should be thoroughly cleaned again before start-up and routinely thereafter to maintain a clean appearance. With just a few minutes of cleaning each week, the case will remain in top condition.
  • Page 31 Technical Resources page at: WWW.ZERO-ZONE.COM or contact the Zero Zone Service Department at: 800-247-4496 All specifications subject to change without notice. ZERO ZONE, INC. • 800-247-4496 • ZERO-ZOnE.COM © 2022 Zero Zone, Inc. All Rights Reserved. • Jun 2022 66-0025 REV G...

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