Zero Zone CRYSTAL MERCHANDISER RVMC24 User manual

COMPLIANT
66-0014 REV G • JUL2022
ZERO ZONE
CRYSTAL MERCHANDISER®COOLERS
RVMC
With CoolView®Doors and ChillBrite®LED Lighting
INSTALLATION & OPERATION MANUAL

II
Table of Contents
ZERO ZONE WARRANTY......................................................................................1
INTRODUCTION.....................................................................................................2
Important User Information ..............................................................................2
Manufacturer.....................................................................................................2
Intended Use.....................................................................................................2
Display Case Models........................................................................................2
Case Features..................................................................................................3
Testing Standards.............................................................................................3
INSTALLATION & OPERATION.............................................................................4
Delivery Inspection............................................................................................4
Packaging.........................................................................................................4
Location............................................................................................................4
Moving Cases...................................................................................................5
Optional Bases...........................................................................................5
Leveling.............................................................................................................6
LineupAssembly ............................................................................................13
Ultra Narrow CaseAnchoring.........................................................................14
Door Leveling (Door Sag/Sawtooth)...............................................................17
Bottom Mounting Plate.............................................................................18
Top Mounting Plate...................................................................................18
Drain...............................................................................................................18
Condensate Removal System........................................................................18
Kickplates........................................................................................................19
Bumper...........................................................................................................19
Top Trim..........................................................................................................19
CoolView®Doors.............................................................................................19
CoolArc™Door Handles ...........................................................................19
Hold-Open Bracket...................................................................................19
Door Gasket.............................................................................................20
Door Closer /Adjusting Door Tension ......................................................20
Removing a Door.....................................................................................20
Installing a Door.......................................................................................20
Rear Load Cases............................................................................................21
Shelves & Stocking Product............................................................................21
REFRIGERATION.................................................................................................22
Mechanical Components................................................................................22
Evaporator Fans.......................................................................................22
Expansion Valve.......................................................................................22
Additional Valves......................................................................................22
Refrigerant Piping...........................................................................................22
Leak Check, Evacuation, & Charging.............................................................22
Operation Set Points.......................................................................................23
Defrost ...........................................................................................................23
Case Thermometers.......................................................................................23
ELECTRICAL........................................................................................................24
General...........................................................................................................24
MAINTENANCE....................................................................................................25
Cleaning..........................................................................................................25
Under Case Floor Cleaning (NSF)...........................................................25
When installing a Crystal Merchandiser®in a Hybrid Merchandiser™ conguration, refer to both this manual
and the Hybrid™ Installation & Operation Manual.

Zero Zone Warranty • 1
ZERO ZONE WARRANTY
SYSTEMS DIVISION
6151 140thAve NW
Ramsey, MN 55303
Phone: [phone]
Toll Free: 800-708-3735
CASE DIVISION
110 N Oakridge Drive
North Prairie, WI 53153
Phone: [phone]
Toll Free: 800-247-4496
the responsive company™
DC-01-F • SEP 2019
Limited Warranty
Zero Zone, Inc. (Seller) hereby warrants that any products manufactured by it and sold are warranted to be free from defects in material and
workmanship, under normal use and service for its intended purpose, for a period of one (1) year from the date of original installation (not to
exceed 15 months from the date of factory shipment). Zero Zone ChillBrite®LED Lighting carries a 5-year parts warranty. Zero Zone CoolView®
Doors carry a 10-year glass pack parts warranty. The obligation under this warranty shall be limited to repairing or exchanging any part, or parts,
FOB Factory, which is proven to the satisfaction of the Zero Zone Service Department to be defective. Zero Zone reserves the right to inspect
the job site, installation, and reason for failure. This limited warranty does not cover labor, freight, or loss of food or product, including refrigerant
loss. This warranty does not apply to motors, switches, controls, lamps, driers, fuses, or other parts manufactured by others and purchased by
the Seller unless the manufacturer of these items warrants the same to the Seller, and then only to the extent of those manufacturer’s warranty
to the Seller.Any products sold on an “AS IS” basis shall not be covered by this warranty.
Extended Warranties
In addition to the standard limited warranty, for further consideration, the Seller will extend to the original purchaser prior to shipment, a limited
extended warranty on the compressor only, following expiration of the standard warranty. The Seller agrees to repair or exchange, at its option,
or provide reimbursement for such exchange as directed, less any credit allowed for return of the original compressor, of a compressor of
like or similar design and capacity, if it is shown to the satisfaction of 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 & Operation Manuals and other instructions.
Length of Extended Warranty
Any compressor warranty may be extended for an additional four (4) years, but such extension must be purchased prior to shipment to be
effective.This warranty is only for the compressor and not for any other associated parts of the refrigeration system.
Product Not Manufactured by the Seller
The written warranty, if any, provided by the manufacturer of any part of the refrigeration unit sold by Seller to Buyer, but not manufactured by
Seller, is hereby assigned to the Buyer. However, Seller makes no representation or warranty regarding the existence, validity, or enforceability
of any such written warranty.
Limitation and Exclusion of Warranties
THE WARRANTIES SET FORTH HEREINARE EXCLUSIVEAND IN LIEU OFALLOTHER WARRANTIESAND REMEDIES WHATSOEVER,
INCLUDING, BUT NOTLIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITYAND/OR FITNESS FORAPARTICULAR PURPOSE.
ZERO ZONE WARRANTY

2 • Introduction
INTRODUCTION
Important User Information
Copyright © 2022 Zero Zone, Inc.
All rights reserved. No part of the contents of this manual may be reproduced, copied, or transmitted in any form or by any means including
graphic, electronic, or mechanical methods or photocopying, recording, or information storage and retrieval systems without the written
permission of the publisher, Zero Zone, unless it is for the purchaser’s personal use.
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.
The information in this document is not intended to cover all possible conditions and situations that might occur. The end user must exercise
caution and common sense when installing, using, or maintaining Zero Zone products. Zero Zone products should only be installed by qualied,
professional refrigeration technicians. If any questions or problems arise, call Zero Zone at 800-247-4496.
Any change to a Zero Zone product made during the installation, start-up, or at any other time must be submitted in writing to Zero Zone for
approval and be approved by Zero Zone in writing prior to commission. The product warranty is voided when any unapproved change is made
to a Zero Zone product.
Manufacturer
Zero Zone, Inc.
110 N Oakridge Dr • North Prairie, WI 53153 • 800-247-4496 • www.zero-zone.com
Intended Use
Zero Zone products are intended to be installed and used as described in this manual and other related Zero Zone literature, specications,
drawings, and data.All Zero Zone products must be leveled after being installed.
Display Case Models
The information contained in this manual pertains to the following Zero Zone display cases:
CASE MODEL DESCRIPTION DOOR SIZE & TYPE
RVMC24 Standard Case 24" x 74" CoolView®Ultra™French Doors
RVMC24D Deep Case 24" x 74" CoolView®Ultra™French Doors
RVMC24DRL Deep Rear Load Case 24" x 74" CoolView®Ultra™French Doors
RVMC24RL Rear Load Case 24" x 74" CoolView®Ultra™French Doors
RVMC24UN Ultra Narrow Case 24" x 74" CoolView®Ultra™French Doors
RVMC24BBUN Back-to-Back Ultra Narrow Case 24" x 74" CoolView®Ultra™French Doors
RVMC30 Standard Case 30" x 74" CoolView®Ultra™Doors
RVMC30D Deep Case 30" x 74" CoolView®Ultra™Doors
RVMC30DRL Deep Rear Load Case 30" x 74" CoolView®Ultra™Doors
RVMC30RL Rear Load Case 30" x 74" CoolView®Ultra™Doors

Introduction • 3
INTRODUCTION
Case Features
Zero Zone produces high quality refrigerated display cases using state-of-the-art components. The cases are built with the thickest insulation in
the industry and a high efciency evaporator coil. Case features include:
Brushless DC electronic motors
Zero Zone ChillBrite®LED Lighting
Zero Zone CoolView®Ultra
™Doors
Testing Standards
These display cases were designed and tested using the following industry standards:
NSF 7 – Commercial Refrigerators and Freezers (ANSI Approved) (equipment certied by NSF)
NSF 51 – Food Equipment Materials (ANSI Approved) (equipment certied by NSF)
UL 471 – Commercial Refrigerators and Freezers (ANSI Approved) (equipment certied by ETL)
ASHRAE Standard 72 – Method of Testing Commercial Refrigerators and Freezers (ANSIApproved)
AHRI 1200 – Performance Rating of Commercial Refrigerated Display Merchandisers and Storage Cabinets (ANSIApproved)
DOE Compliant (All U.S. Sales and U.S. Territories)
ASHRAE Standard 72 species the test conditions for the equipment. It includes the ambient conditions of 75°F dry bulb and 55% RH. It also
species the door opening requirements for the performance test. Doors are opened six times in one hour for six seconds. The door opening
test period is for eight hours during one 24-hour performance test.As an example, a 5-door case will have 240 door openings during one 24-
hour test. Consult the factory if your store exceeds these test conditions.

4 • Installation & Operation
INSTALLATION & OpERATION
! CAUTION! DO NOT STAND ONTOP OFACRYSTAL MERCHANDISER®.THE TOP OFTHE CASE IS NOT DESIGNED TO
SUPPORTTHE WEIGHT OFA PERSON.
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. The carrier will supply
necessary report and claim forms. Contact your Zero Zone sales representative or the service department to arrange for replacement parts.
Do not leave, store, or hold case outdoors in direct sunlight or high ambient temperature. With the end panels on, the case is airtight;
the inside temperature of the case will increase, and the heat will be unable to escape. This could potentially cause any plastic inside
the case to deform or warp.
Packaging
Each case in a lineup is labeled to identify the lineup and joint. The label uses a two digit number designation, separated by a decimal. The
rst number indicates the case lineup. The second number indicates the case joint. Case joints begin with the number “1” at the left-most joint
in the lineup when looking at the front of the lineup. The rst case in the lineup will be labeled on the right end and the second case in the lineup
will be labeled on the left end. The numbers on each end to be joined will match (See Figure 1).
The rst case in a lineup (with the right side labeled “x.1”) has a packet attached to the shelving that contains touch-up paint. Every case in
a lineup has a packet attached to the shelving that contains important information about the case and/or lineup and, if applicable, special
instructions for installing ordered options.
Bumpers and kickplates are shipped on top of the case. Shelves for the case are tie-wrapped and blocked into the individual cases. Other
accessories like drain traps, drain pans, condensate evaporation pans, and hat channel rails are shipped in the case that require the parts.
Materials for joining cases—including caulk, joining bolts, splices, and end ller posts—are shipped in each case to be joined.
The doors are prevented from opening during shipment with the use of a door-holding shipping bracket. The bracket is screwed to the top of the
case at each door and should be removed when the case is unpacked.
Location
Zero Zone cases must not be installed in the direct rays of the sun or near a source of radiant heat. Be certain that the oor under the
installation is of sufcient strength to prevent sagging. Uneven surfaces will result in reduced performance.
Cases should be set to allow a minimum 3" of space behind the back of the units. This will allow necessary air to circulate behind the
display cases and prevent condensation. Higher humidity stores with minimal air circulation require at least a 4" gap.Aminimum 2" gap is
recommended between cases on end-to-end installations.All minimum spacing requirements may increase if seismic restraints are used.
Building softs must be set back at least 6" from the front of the case to allow access to electrical wiring on the top of the case.
INSTALLATION & OpERATION
FIGURE 1: Case Label Information
Front of Back-to-Back Lineup
1.1B 1.1B 1.2B 1.2B
1.1A 1.1A 1.2A 1.2A
Front of Lineup
1.1 1.1 1.2 1.2
Front of Lineup

Installation & Operation • 5
INSTALLATION & OpERATION
Moving Cases
Various tools and equipment may be used to move cases, including, but not limited to, a forklift, a Johnson bar, a pallet jack, furniture rollers,
casters, or a Rol-A-Lift. Be careful to avoid damaging the store ooring. Only certied forklift drivers should use forklifts to move the cases. The
case should only be lifted off the oor as high as necessary for transport. The forklift should be driven slowly; avoid abrupt motions or bumps.
Use the end frame to push/pull the case. For best results, push/pull lower on the end frame. Do not push/pull on the mullions as this
can cause the mullions to bend.
When using a Johnson bar, only contact the sheet metal of the bottom foamed panel. Do not contact the bumper support or end panel.
Be careful not to pierce the sheet metal with the corner of the Johnson bar.
 When using a pallet jack or furniture rollers, only place them under the oor panels. Do not place them under the bumper support or
drain pipe as that will crush the components.
Cases have steel protective support plates under the end panels (not under insulated dividers) to protect them from Johnson bar damage.
Make sure that a forklift with the proper fork dimensions is available. Forks must be 48" long, 1 1/2" to 1 3/4" thick, and no more than 4"
wide to t the bases. Refer to the table below for instructions.
CASE MODELS INSTRUCTIONS
2RVMC24 Forks must extend 20" to 24" under the case from either end
3RVMC24 Forks must extend 26" to 30" under the case from either end
4RVMC24 Forks must extend 39" to 43" under the case from either end
6RVMC24 Forks must extend 44" to 47" under the case from either end
2RVMC30 Forks must extend 26" to 30" under the case from either end
3RVMC30 Forks must extend 39" to 43" under the case from either end
4RVMC30 Forks must extend 44" to 47" under the case from either end
5RVMC30 Forks must extend 44" to 47" under the case from either end
OPTIONAL BASES
For low shipping height applications, such as 80" tall doorways, Zero Zone offers 1" bases or 1 3/4" bases.
Cases with 1" bases will be shipped on a wooden pallet and are not forkliftable. The case can be removed from the pallet to slide it through
the 80" doorway.
The 1 3/4" bases are expandable to accommodate up to 1 3/4" thick forks (See Figure 2). To use a forklift on the 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.
FIGURE 2: Expandable Base

6 • Installation & Operation
INSTALLATION & OpERATION
Cases with 1" or 1 3/4" bases will be set on hat channel rails or into nested bases (See Figure 3). The drain elbow will be shipped loose and
must be installed using extra thick PVC cement after the case set in place.
Spacer blocks (also called ller blocks) are included in the end bases of 4-door, 5-door, and 6-door cases that use bases which are taller than 3
1/2". Spacer blocks limit the case's forward tilt while it is lifted by a forklift. Forks should be inserted above the spacer blocks (See Figure 4).
Leveling
Cases should be set level right to left to allow complete drainage of defrost and condensate water. Since a level oor area is seldom available,
the following steps are recommended to ensure a level installation. If your case uses seismic restraints, specic instructions for attaching
seismic restraints are included in your document package. Read and understand these instructions before assembling the lineup.
1. Measure off and mark on the oor the exact dimensions of the case lineup (See Figure 5). Refer to the xture plan or oor plan.
2. Snap a chalk line at the locations for the front and back positions of the bases.
3. Mark locations of all joints, both front and back.
4. Using a laser level or transit, nd the highest point along both base position lines. Using the high point as a reference, mark the difference
directly on the oor to each base, both front and back (See Figure 6).
5. If your case uses optional hat channel rails to raise the case height, place shims under the hat channel rails (See Figure 7 on page 7).
On 3 and 4-door cases, the center bases are not aligned, so the hat channel rails must be angled slightly to support the bases (See Figure
10 through Figure 13 starting on Page 8).
6. Place enough shims under each base or optional hat channel rail to equal the highest point. Shims should not extend beyond the front
case bases or they will interfere with installing trim. The shims should be oriented to sit under the front and rear bends of each base. Tape
all shims in place (See Figure 8 and Figure 9 on page 7).
FIGURE 4: Spacer Block
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
Spacer Block(s)
4 3/8" max. opening for
2 and 3-door cases.
3 3/8" max. opening for
4 and 5-door cases.
FIGURE 5: Measure and Mark Exact Case Outline FIGURE 6: Mark Floor Level Difference
FIGURE 3: Nested Base

Installation & Operation • 7
INSTALLATION & OpERATION

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
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
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



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


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

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
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





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


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

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
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






Hat Channel Rail
Hat Channel Rail
Shim
Shim
Shim
Base
Base
Base
Position hat channel rails with tape up. Place shims
perpendicularly under the hat channel rails.
2-door cases get 2 hat channel rails.
3 and 4-door cases get 3 hat channel rails.
Do not position under the drain hub.
5-door cases get 4 hat channel rails.
FIGURE 7: Hat Channel Rail Orientation
FIGURE 8: Tape Shims on the Floor Under Each Base or Hat Channel Rail
C
a
s
e
F
ro
nt
Case Fro
nt
Placement
Under Bases
Case Front
Case Front
Placement Under
Hat Channel Rails
FIGURE 9: Shims Under Bases (Without Hat Channel Rails)
Shims must be placed under the front
and rear bends of each base to prevent
the base from warping/buckling.
Case
Shims
Case
Shims
Both corners of the base
must be supported by shims
to prevent base buckling
DWG. NO. SP-6006-1 REV. A
Display Case
Shims Shims
Display Case

8 • Installation & Operation
INSTALLATION & OpERATION
FIGURE 10: RVMC30 Base Locations
 
     
 
 
2RVMC30 3RVMC30
4RVMC30
5RVMC30
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).