INSTALLATION & OPERATION MANUAL

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Transcription:

Crystal merchandiser TM ZERO ZONE CRYSTAL MERCHANDISER COOLERS With CoolView Doors & ChillBrite LED Lighting INSTALLATION & OPERATION MANUAL MN-03-E JUL 2017

Table of Contents CASE MODELS REFERENCED IN THIS MANUAL...III ZERO ZONE WARRANTY... IV INTRODUCTION...1 Important User Information...1 Manufacturer...1 Intended Use...1 INSTALLATION & OPERATION...2 Delivery Inspection...2 Packaging...2 Location...2 Installation Leveling...2 Case Movement...3 30" Door Case...3 24" Door Case...4 Lineup Assembly...4 Door Level...5 Trim...5 Kick Plates...5 Drain...5 Electrical...6 Doors...6 Dwell Position Self-Closing...6 Handles...6 Cartridge...6 Installation...6 Gasket...6 Rear Load Cases...7 Mechanical Components...7 Operation...7 Case Temperature Internal Control Options...7 Cleaning...7 Glass Coatings...8 Shelf Location...8 Loading the Case...8 Case Thermometer...8 ILLUSTRATIONS...9 Case Label Information...9 Tilt Back...10 Cooler to Freezer Leveling...11 Leveling Cases Prior to Joining...12 RVMC30 Base Locations...13 RVMC24 Base Locations...14 RVMC30-D (Deep Case) Base Locations...15 RVMC24-BD (Deep Case) Base Locations...16 Case Squareness...17 Spacer Block...18 RVMC30 & RVMC24 Caulking Instructions...19 NSF Caulking Instructions...20 Bottom Door Adjustment, Drain & Components...21 Kick Plates - Tinnerman Clips...22 Typical Wiring Diagram...23 Door Removal...24 REFRIGERATION...25 Line Sizing...25 II

CASE MODELS REFERENCED IN THIS MANUAL Crystal merchandiser TM THIS INSTALLATION & OPERATION MANUAL PERTAINS TO THE FOLLOWING ZERO ZONE DISPLAY CASE MODELS: RVMC30 30" x 74" CoolView Doors RVMC24 24" x 74" CoolView French Doors RVMC30-BD Deep Case w/ 30" x 74" CoolView Doors RVMC24-BD Deep Case w/ 24" x 74" CoolView French Doors RVMC30RL Rear Load Case w/ 30" x 74" CoolView Doors RVMC24RL Rear Load Case w/ 24" x 74" CoolView French Doors RVMC30RL-BD Rear Load Deep Case w/ 30" x 74" CoolView Doors RVMC24RL-BD Rear Load Deep Case w/ 24" x 74" CoolView French Doors III

ZERO ZONE WARRANTY 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). LEDs have a 5 year parts warranty. The obligation under this warranty shall be limited to repairing or exchanging any part, or parts, without charge, FOB Factory, and which is proven to the satisfaction of Zero Zone s 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 such 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 Company will extend to the original purchaser, 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 it s Service and Installation 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. In those instances on manufactured systems where factory-installed Zero Zone Oil Management Systems are purchased the original limited warranty shall be extended automatically to two (2) years total and purchased extended warranties shall be extended automatically for a total of six (6) years from the date of factory shipment. 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 HEREIN ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES AND REMEDIES WHATSOEVER, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE. IV Zero Zone Warranty

INTRODUCTION Important User Information Copyright 2017 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, 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 qualified, 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, startup, 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, specifications, drawings, and data. Always install Zero Zone products on a level surface. The information contained in this manual pertains to the Zero Zone Crystal Merchandiser (RVMC) cooler case with Zero Zone CoolView doors and Zero Zone ChillBrite LED lighting. Potential case features include: Electronic fan motors Zero Zone ChillBrite LED lighting Zero Zone CoolView no-energy doors These display cases were designed and tested using the following industry standards: NSF 7 Commercial Refrigerators and Freezers (ANSI Approved) (equipment certified by NSF) UL 471 Commercial Refrigerators and Freezers (ANSI Approved) (equipment certified by ETL) ASHRAE Standard 72-2014 Method of Testing Commercial Refrigerators and Freezers (ANSI Approved) AHRI 1200 Performance Rating of Commercial Refrigerated Display Merchandisers and Storage Cabinets (ANSI Approved) DOE Compliant (All U.S. Sales) ASHRAE Standard 72-2014 specifies the test conditions for the equipment. It includes the ambient conditions of 75 F dry bulb and 55% RH. It also specifies 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. Introduction 1

INSTALLATION & OPERATION Delivery Inspection These display cases were carefully factory-tested, inspected, cleaned, and properly packed to ensure delivery in the best possible condition. The equipment should be unpacked and checked for damage immediately upon delivery. Do not place leave, store or hold case outdoors in direct sunlight, or in high ambient temperature. 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. Packaging Numbered labels identify the order of cases in a lineup. The first number indicates the store order number. The second number indicates the lineup. The third number indicates the joint in a lineup (from left to right, when viewed from the front of the case). See Figure 1 on page 9. The first case in the lineup (Case 1) has a packet attached to the door handle that contains the manual, special instructions for installing ordered options, and touch-up paint if the cases are custom painted. Every other case in the lineup has a packet attached to the door that contains the specific information for that case. The shop order is taped to each case s right-hand door. Bumpers 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 channels are shipped in the case that requires the parts. Materials for joining cases include caulk, joining bolts, splices, and end filler posts, and are also located in each case. The door is 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 These cases must not be installed in the direct rays of the sun or near a source of radiant heat. Be certain that the floor under the installation is of sufficient strength to prevent sagging. Out-of-level conditions will result in reduced performance. Wall cases (cases set with a back to a wall), cases set back-to-back, and cases set back-to-end should be positioned to allow a minimum of 2" to 4" of space behind the back of the unit(s). This will allow necessary air to circulate behind the display case(s) and prevent condensation. Higher humidity stores with minimal air circulation require a 4" gap. Installation Leveling Cases should be set with a slight backward tilt to offset the forward lean of a fully loaded case. We recommend an additional 3/8" of shims be installed under the front bases after the case is leveled. This will tilt the case back about 1" at the top of a standard depth case and tilt back about 7/8" on a deep case. See Figure 2 on page 10. When joining a freezer and cooler in a short lineup, both cases should be tilted back with an additional 3/16" of shims under the front bases after the case is leveled. See Figure 3A on page 11. On long lineups, the tilt back on the coolers should gradually increase while working away from the cooler/freezer joint until the last case has an additional 3/8" of shims under the front base and the tilt back on the freezers should gradually decrease to no additional shims while working away from the cooler/freezer joint. See Figure 3B on page 11. Cases should be set level right to left to allow complete drainage of defrost water. Since a level floor area is seldom available, the following steps are recommended to insure a level installation. See Figure 4 on page 12. 1. Measure off and mark on floor the exact dimensions of the case lineup. (Check blueprints). 2. Snap a chalk line at the locations for the front and back positions of the base rails. 3. Mark locations of all joints (front and back). 2 Installation & Operation

Installation & Operation 4. Using a laser level or transit, find the highest point along both base rail position lines. Using the high point as a reference, mark the difference directly on the floor to each joint (front and back). 5. If you plan on using optional hat channels to raise the case height, place them under each pair of bases. On some cases, all bases are not directly in line from front to back. See Figure 5 on page 13 through Figure 8 on page 16 for base locations. The 3 and 4-door hat channels will be angled slightly to support the front and rear bases because the bases themselves are not in line. 6. Place the required number of shims under each base or optional hat channel at each joint (front and back) to equal the highest point. The case is designed with minimal gaps between adjacent doors to provide a clean appearance. To maintain even, consistent gaps and proper door operation the case must be leveled front-to-back and side-to-side. Check case squareness to within 1/8". See Figure 9 on page 17. Shims should not extend beyond the front case bases or they will interfere with the installation. Tape all shims in place. The shims should be oriented to sit under the front and rear bends of each base. 7. Place additional support shims under all other bases or hat channels, leaving no gaps taller than one shim. 8. Cases should be set with a slight backward tilt to offset the forward lean of a fully loaded case. We recommend an additional 3/8" of shims be installed under the front bases after the case is leveled. This will tilt the case back about 1" at the top of a standard depth case and tilt back about 7/8" on a deep case. See Figure 2 on page 10. 9. When joining a freezer and cooler in a short lineup, both cases should be tilted back with an additional 3/16" of shims under the front bases after the case is leveled. See Figure 3A on page 11. On long lineups, the tilt back on the coolers should gradually increase while working away from the cooler/freezer joint until the last case has an additional 3/8" of shims under the front base and the tilt back on the freezers should gradually decrease to no additional shims while working away from the cooler/freezer joint. See Figure 3B on page 11. If you ve purchased seismic restraints, specific instructions for attaching those restraints are included in your document package. These instructions should be read and understood before the lineup is assembled. Case Movement! CAUTION! DO NOT PULL ON THE MULLIONS WHEN MOVING THE CASE. THE END FRAME CAN BE USED TO PUSH/PULL THE CASE. DOLLIES MAY BE PLACED AGAINST THE CASE BOTTOM, BUT AVOID CRUSHING THE BUMPER SUPPORT OR DRAIN PIPE. WHEN USING A J-BAR, IT MUST NOT CONTACT THE SHEET METAL OF THE BUMPER SUPPORT, BUT SHOULD CONTACT THE SHEET METAL OF THE BOTTOM FOAMED PANEL. THE BUMPER SUPPORT WILL BE DAMAGED IF LIFTED BY A J-BAR. BE CAREFUL NOT TO PIERCE THE SHEET METAL WITH THE CORNER OF THE J-BAR. The cases have steel protective support plates under the ends (not under insulated dividers). These are designed to protect the end panel from J-bar damage and should be removed prior to installing end panel kick plates. Care should be taken when moving the cases. The doors should be secured so they cannot open while the case is moved. Only experienced certified forklift drivers should use forklifts to move the cases. The case should only be lifted off the floor as high as necessary for transport. The forklift should be driven slowly, avoiding any abrupt motions or bumps. The following forklift dimensions must be maintained to avoid damaging the case when it is lifted. Fork blades wider than 4" will not fit in the bases. 30" DOOR CASE 2-Door Cases Forks must extend from 26" to no more than 30" under the case. Installation & Operation 3

Installation & Operation 3-Door Cases Use 48" long forks! Forks must extend from 39" to no more than 43" under the case. 4 & 5-Door Cases Use 48" long forks! Forks must extend from 44" to 47" under the case. 24" DOOR CASE 2-Door Cases Forks must extend from 20" to no more than 24" under the case. 3-Door Cases Use 48" long forks! Forks must extend from 39" to no more than 43" under the case. 4 & 6-Door Cases Use 48" long forks! Forks must extend from 44" to no more than 47" under the case. IMPORTANT: Fork blades wider than 4" will not fit in the bases. Spacer blocks are factory-installed in the end bases of 4 and 5-door cases that use bases taller than 3 1/2". These blocks limit the cases forward tilt at the opposite end from the forklift while it is being lifted and must be used when lifting 4 or 5-door cases with bases taller than 3 1/2". See Figure 10 on page 18. For low shipping height applications, Zero Zone has optional expandable bases. As shipped, the base is 1 3/4" tall. It is attached with spacers that allow the base to slide away from the bottom of the case, creating a gap that allows the use of a 1 1/2" thick forklift blade. When the case needs to move through an 80" door opening, the case is shipped with a 1" base on a wood pallet. Remove the case from the pallet to slide the case through the 80" doorway. Drain elbow will need installation on a 1" base. Use extra thick PVC cement. Lineup Assembly Zero Zone display cases have been engineered for continuous display. This means that any number of cases can be joined together to create a display of any desired length. The bottom of the end panel is protected with a removable steel plate that must be removed after the cases are set. The cases will be ready for assembly after removal of the packaging material. A 1" wide trim piece has been attached at the factory to the first case set in each lineup. It is attached at the top and bottom of the extrusion using sheet metal screws. The next case will be slid up to the trim piece and the door will seal against the trim piece. Case caulking instructions are shipped with every case, explaining the proper procedure for joining cases. See Figure 11 on page 19. After setting the first case, the next case is slid into position and bolted to the first case using four 3/8" bolts that are provided. Begin tightening the bolts at the top rear, working down the back of the case and up the front, making sure that the front seams are flush. Cases are not designed to be pulled together using the joining bolts. 4 Installation & Operation

Installation & Operation For NSF case installation compliance, the interior case seams need to be sealed using NSF approved caulk (not supplied). See Figure 12 on page 20. Door Level Doors are designed to have a door-to-door gap of 11/32" (.344") when all the doors open in the same direction. When the cases are configured with French swing doors, there is a 7/16" (.438") gap between doors at the handle side and an 11/32" (.344") at the hinge side. The top and bottom door mounting plates are slotted to allow the door to be shifted to the right and left if necessary to achieve these gaps. The slotted plate has 4 corner screws that allow the plate and door to move right and left. They do not need to be loosened. The (5th) center locking screw, accessed through the hole in the bumper support plate, must be loosened to allow the bracket to be shifted. Use a rubber mallet and tap the door s aluminum extrusion to shift the door left or right. After the door is moved into position, tighten the center locking screw. See Figures 13A and 13B on page 21. The top mounting plate has 3 screws that secure it in position. All 3 screws must be loosened to shift the bracket. Tighten all screws when the door is in the desired position. Trim The cases are supplied with a 3" protective bumper. Each case has its own bumper assembly including end caps. The case was shipped with the bumper support and snap track installed on the front of the case. The bumper may need trimming before snapping it onto the snap track. Door leveling must be completed before attaching the bumper. Full height (top) trim is provided to hide the door hardware located on the top exterior of the case. The top trim is factory-installed. Joint splices are shipped loose to be installed on-site at the upper case joints. Kick Plates Each case is shipped with a front kick plate. Cases with end panels receive 1 side kick plate per end. Cases that join together get a kick plate splice. Front and side kick plates are attached to the case bases using Tinnerman clips. The flange on the front kick plate faces forward and is at the top. The screw (supplied) goes through the kick plate and into the Tinnerman clip. See Figure 14 on page 22. There is a natural gap between the top of the kick plate and the underside of the case that allows 50 CFM of air return per door. If more return air is required, contact the factory to order optional louvered kick plates. Drain The drain exits the case in the center. The bases are designed for lateral runs of drain pipe to pass through and the drainpipe must be installed in this area. See Figure 13C on page 21. There is no room in front of the base for drainpipe because the kick plate installs directly to the front of the bases. Install the tee to the outlet pipe and a drain trap to the tee. Plug the open end of the tee using the clean-out plug supplied with the drain trap kit. The drain line must be pitched away from the case. The tee, drain trap, and plug are supplied with the case. The drain trap must be level. The drain trap should be primed with water after installation. The drain line must be pitched away from the case enough to insure proper drainage. Consult your local codes for minimum requirements. Cases with 1" bases are shipped on wooden skids or pallets. The forward drain section, tee and R trap are shipped loose for field installation. Installation & Operation 5

Installation & Operation Electrical Cases may have 2 or 3 electrical circuits. Standard cases have 2 electrical circuits: the fan circuit and the lighting circuit. See Figure 15 on page 23. Cases may be purchased with heated doors, which add an additional electric circuit. The light switch is located on the right side of the interior ceiling. See Figure 13D on page 21. The electrical box is mounted on the exterior top right of the ceiling panel. The box includes the power connection and power supplies for the LED light bars. Black and white wires and wire nuts have been supplied. Make the wire nut connections inside the electrical box. A ground connection can also be made inside the electrical box. Doors DWELL POSITION SELF-CLOSING The doors are self-closing. Closing tension increases as the door opening angle is increased. It can be opened to 90 before the door stop engages. There is a dwell built into the operation of the door, whereby the tension comes off of the door at about an 80 to 90 opening. HANDLES The standard door handle is attached to the face of the glass door. An industrial-grade adhesive attaches a metal plate to the glass surface. The handle is a soft plastic material with a steel stiffener. The handle is bolted to the metal plate, and then caps are inserted over the bolts to create a finished appearance. CARTRIDGE A spring cartridge supplies tension to close the door. The cartridge is mounted to the front of the case behind the bumper support. A square pin in the cartridge locks into a square opening on the door, transferring the spring tension to the door. Tension is present; there is no manual adjustment tension. The screws securing the cartridge are retained with removable Loctite. Extra force will be required to remove them. INSTALLATION Door removal is accomplished in the following steps: 1. Remove fasteners from Cap Bolt Cover and remove cover. 2. Remove fasteners from Hinge Bolt Cover and remove cover. 3. Remove the shoulder bolt that goes through the door stop and into the door. This is located on the underside of the door. 4. Then, remove the hinge screw at the top of the door. 5. Finally, open the door 90 and lift the door up and off of the cartridge. Opening the door 90 removes the closing tension, making it possible to lift the door off the square pin. See Figure 16 on page 24. To reinstall the door, you must first check the tension on the cartridge. If the square post is in the diamond position, the cartridge is properly tensioned. If not, use a 7/16" wrench to adjust proper tension and turn it 135 clockwise. At the end of the 135 rotation, the closing tension should drop off to zero. Follow the 3 steps in the previous paragraph in reverse order to finish the reinstallation. GASKET A horizontal magnetized gasket runs the length of each case. The gasket mates up to steel plates installed at the top and bottom of each door. This creates the seal at the top and bottom of each door. A vertical gasket runs along the hinge side of each door. The gasket seals against the 6 Installation & Operation

Installation & Operation handle side of each adjacent door. At the end of each case, another gasket is placed on the handle side of the door and is used to seal against the side of the case (instead of an adjacent door). Rear Load Cases Rear load cases are shipped with the rear doors removed and placed on a skid. To achieve proper temperature, the rear load case must be butted-up to the opening of a walk-in cooler. Before final attachment of cases to the walk-in, the diagonal measurement of the rear load opening must be made to assure a square case installation. If the diagonal measurements are not within 1/8", the case needs to be re-leveled. After the cases are installed, doors can be inserted into the opening by inserting the top of the door into the upper track and then sliding the bottom of the door into the lower track. Mechanical Components Air is circulated through the case by fans. Refer to specific Zero Zone specification sheets for the number of fans in each case. Each door has a false ceiling panel held in place by screws. A fan motor is exposed after the false ceiling is removed. Air is drawn in the top front air grill and discharged down the rear ducts. Typically, the expansion valve is located behind the false ceiling panel in the right-most door of each case. After removing the interior ceiling panel, you will see a rectangular cover panel. Remove the cover to access the thermal expansion valve and suction line Schrader valve. At customer request, we can locate the expansion valve behind the right back duct. An access cover is provided in the duct. See Figures 13D and 13E on page 21. Glycol cases typically have a balance valve located in the outlet line on the top of the case. If a stop solenoid is provided, it will also be located in the outlet line on top of the case. Schrader taps are provided inside the case on the right-hand side of the coil for venting and draining the system. An additional tap is provided on top of the case to allow for venting when the system is drained. Operation See the separate specification sheet for the required refrigeration system capacity and the electrical requirements. To maintain food safety requirements of 41 F product temperature, operate the case at the following settings. CASE TEMPERATURE INTERNAL CONTROL OPTIONS RACK SYSTEM CONDENSING UNIT (R 404A MEDIUM TEMP) RETURN AIR TEMPERATURE DISCHARGE AIR TEMPERATURE Evaporator Temp +28 F Condensing Unit Cut-In 74 psig Return Air Cut-In +37 F Discharge Air Cut-In +34 F Condensing Unit Cut-Out 62 psig Return Air Cut-Out +33 F Discharge Air Cut-In +30 F NOTE: Superheat Setting +8 F Cleaning DEFROST SETTINGS Off-Cycle 3 Per Day 45 Minute Duration Electric 2 Per Day 30 Minute Duration Although your Zero Zone cases are thoroghly cleaned before shipping, the cases should be thoroughly cleaned again before start-up and routinely thereafter to maintain a clean appearance. Use mild detergent and warm water (never an abrasive cleaner) to wipe out the inside of the case before start-up. The case drain should be regularly cleared of debris and price tags. Installation & Operation 7

Installation & Operation Internal components are easily accessed by the removal of mounting screws and sheet metal component parts. The components can be cleaned using a mild detergent and warm water or a mild sanitizer. Once the false ceiling, fans, and fan plenum are removed, the coil and drain pan can be flushed. All food products should be removed from the case when flushing with a hose. Do not use high-pressure water or steam to clean the interior. GLASS COATINGS Cleaning interior glass reduces fogging and increases visibility. Wipe down glass doors with glass cleaner. Do not use any products containing silicone or anti-fog. Shelf Location The shelves are adjustable in 1" vertical increments and may be located in any position for best display advantage. The standard shelves may be tilted down at a 10 slope. Make sure the shelf brackets are securely seated before placing any objects on the shelf. Optional shelf assemblies are available that may be titled at 5, 10 or 15 angle. Loading the Case The case may be loaded with merchandise after it has been operated for at least 24 hours with correct case temperature and proper control operation. While loading the shelves, leave an air space between the top of the merchandise and the shelf above it so the customer can remove the merchandise. The air space allows an air curtain on top of the product. Product should not extend beyond the front of the shelves or basket. ITEM SHELF DESCRIPTION MAXIMUM LOAD PER SHELF 1 Standard Shelves 250 lbs. 2 Heavy Duty Shelves 350 lbs. 3 Bakery or Meat Brackets 175 lbs. Case Thermometer The cases are shipped with 2 thermometers. One thermometer is factory-mounted to sense the discharge air stream (rear duct). The second thermometer is shipped loose and should be installed in the warmest product location as required by NSF. Specific field installation instructions are packaged with the thermometer that is shipped loose. 8 Installation & Operation

ILLUSTRATIONS Case Label Information Figure 1 Refer back to page 2 Illustrations - Case Label Information 9

Illustrations Tilt Back Figure 2 10 Illustrations - Tilt Back Refer back to page 2

Illustrations Cooler to Freezer Leveling Figure 3 3A. Short Case Lineup 3B. Long Case Lineup Refer back to page 2 Illustrations - Cooler to Freezer Leveling 11

Illustrations Leveling Cases Prior to Joining Figure 4 4A. Measure and mark exact case outline 4B. Mark floor level differences Case Front 4C. Shim placement at each base. 12 Illustrations - Leveling Cases Prior to Joining Refer back to page 2

Illustrations RVMC30 Base Locations Figure 5 Refer back to page 3 Illustrations - RVMC30 Base Locations 13

Illustrations RVMC24 Base Locations Figure 6 14 Illustrations - RVMC24 Base Locations Refer back to page 3

Illustrations RVMC30-D (Deep Case) Base Locations Figure 7 Refer back to page 3 Illustrations - RVMC30-D (Deep Case) Base Locations 15

Illustrations RVMC24-BD (Deep Case) Base Locations Figure 8 16 Illustrations - RVMC24-BD (Deep Case) Base Locations Refer back to page 3

Illustrations Case Squareness Figure 9 Refer back to page 3 Illustrations - Case Squareness 17

Illustrations Spacer Block Figure 10 18 Illustrations - Spacer Block Refer back to page 4

Illustrations RVMC30 & RVMC24 Caulking Instructions Figure 11 FOLLOWING THIS PROCEDURE IS CRITICAL TO JOINED CASES BEING SEALED CORRECTLY! 1. Apply two 1/4" to 3/8" wide beads of BUTYL SEALANT, as shown with dashed lines, at Ceiling, Rear Wall, and Base. Apply to only one (1) case at joint, not both cases, as excessive amounts of sealant may squeeze out of joint. 2. After cases are joined and tightened, caulk the top and back exterior seams, if possible, to further ensure there are no voids in the joint. 3. This process must be repeated at all case joints. Refer back to page 4 Illustrations - RVMC30 & RVMC24 Caulking Instructions 19

Illustrations NSF Caulking Instructions Figure 12 20 Illustrations - NSF Caulking Instructions Refer back to page 5

Illustrations Bottom Door Adjustment, Drain & Components Figure 13 13A. Bottom Door Adjustment 13B. Bottom Door Adjustment Corner Screw with Stand-Off Center Locking Screw Center Locking Screw 13C. Drain 13D. Cooling Components Expansion Valve Back of Light Switch Fan 13E. Cooling Components Refer back to page 5 Illustrations - Bottom Door Adjustment, Drain & Components 21

Illustrations Kick Plates - Tinnerman Clips Figure 14 22 Illustrations - Kick Plates - Tinnerman Clips Refer back to page 5

Illustrations Typical Wiring Diagram Figure 15 Refer back to page 6 Illustrations - Typical Wiring Diagram 23

Illustrations Door Removal Figure 16 24 Illustrations - Door Removal Refer back to page 6

REFRIGERATION Line Sizing Figure 17 Refrigeration - Line Sizing 25

For other technical support, please refer to Zero Zone Installation & Operation Manuals available on the Service 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 2017 Zero Zone, Inc. All Rights Reserved. JUL 2017 MN-03-E