DAIRY/DELI /PRODUCE C A S E S MODEL: O5DMA INSTALLATION & OPERATION HANDBOOK P056442G Rev.
DANGER Electrical Shock Hazard Always disconnect power to case when servicing or cleaning. WARNING HIGH PRESSURE disconnect power to the fans before cleaning case. WARNING Some surfaces may be hot when case is in operation. HIGH PRESSURE HIGH PRESSURE WARNING Always turn off power to lights before servicing. HIGH PRESSURE CAUTION Do not walk or put heavy objects on top of case.
Welcome to the ORIGIN2 display case family. We’re very pleased you joined us. This installation and operation handbook has been especially prepared for everyone involved with ORIGIN2 display cases – owners, managers, installers and maintenance personnel. You’ll find this book different than traditional manuals. The most dramatic difference is the use of many more illustrated instructions to make it easier to read and to help you get the most from this innovative new design.
TABLE OF CONTENTS GENERAL INFORMATION – PAGES 2-3 General information, first step recommendations and case dimensional drawings. THE USE OF CASTERS – PAGE 4 Cases roll on casters–general use and caster removal. INSTALLATION - PAGE 5 Instructions on how to trim out cases with illustrations. REFRIGERATION PIPING - PAGE 6 Diagram showing the refrigeration components of the self contained cases. COMPONENT DEFINITIONS - PAGE 7 Operational descriptions of the refrigeration components.
GENERAL INFORMATION DESCRIPTION OF CASES: The refrigerated display cases described in this handbook are part of the Hill PHOENIX, Origin2 design series. Specifically covered in this manual is model O5DMA multi-deck dairy/deli/produce self-contained. STORE CONDITIONS: Hill PHOENIX cases are designed to operate in an air conditioned store with a system that can maintain 75OF (24OC) store temperature and 55 percent (maximum) relative humidity (CRMA conditions).
39 11/16 in [100.7 cm] Amp Plate & Serial Plate Location 19 3/16 in [48.7 cm] 5" EXTENDED FRONT W/ NOSE LIGHT 3rd ROW LIGHT (OPTIONAL) 50 13/16 in [129.0 cm] THROAT 7 1/2" EXTENDED FRONT W/ NOSE LIGHT 48 5/16 in [122.7 cm] THROAT 9.75" MIRROR (OPTIONAL) 13" MIRROR (OPTIONAL) 100 13/16 in [256.1 cm] 59 in [149.9 cm] 102 7/8 in [261.3 cm] 26 3/16 in [66.6 cm] 23 11/16 in [60.2 cm] 55 13/16 in [141.7 cm] THROAT 19 1/2 in [49.
CASES MOVE ON CASTERS FOR EASIER INSTALLATION ORIGIN2 cases are manufactured and shipped to stores with casters installed on the base frame to make the job of moving cases easier for everyone involved with the manufacturing, shipping and installation process. Casters not only speed up the process, but they also reduce the chance of damage from raising and lowering cases with ”J” bar to place them on dollies, skates or rollers. In most situations, one or two persons can move the case with ease.
INSTALLATION The end kickplates, which are also shipped in the case, are attached to the baseframes directly under the ends with the screws provided. There are two, smoke grey plug buttons that are inserted into each end kickplate to cover the screw holes, see illustration 2 below. The O5DMA is shipped with most of the exterior panels and trim already installed. The only exterior parts that need to be installed when the case arrives are the kickplate and the end kickplates.
REFRIGERATION PIPING The expansion valve and other controls are located on the left-hand side of the case and are accessible without lifting the fan plenum. The controls cluster may be reached by lifting only the left hand deck pan minimizing the need to unload product. The compressor and condensing unit are located on top of the case for easy access. The diagram below illustrates all of the refrigeration components in the O5DMA. The components surrounded by the box are located in the case tank.
COMPONENT DEFINITIONS Access Valve - Access port on the evaporator that allows service personnel to check system pressure. Accumulator - A device installed on the suction line that is used to boil off small amounts of liquid refrigerant so liquid does not reach the compressor. Compressor - An electrically driven piston pump that pumps vapor refrigerant from a low pressure level to a higher pressure level.
PLUMBING The case run-off is channeled to a drain pan located underneath the case as shown below. The water is then pumped up to an evaporative drain pan on top of the case where an electric heater evaporates the run-off. When cleaning the case be sure not to introduce water faster than the drain pump can carry it away. All of the plumbing components are attached to the case at the factory so there is no assembly required.
ELECTRICAL HOOKUP The drain pump is plugged into a receptacle mounted under the case, as shown below. The receptacle is intended for use with the drain pump only and not as a power supply for peripheral equipment. Electrical connections for the O5DMA are made in the field connection junction box located at the top left rear of the case, see diagram below.
ELECTRICAL HOOKUP HOW TO ACCESS BALLASTS This display case is equipped with specially designed light reflectors in the cornice to improve the illumination of products. Electronic ballasts operate both the cornice and shelf lights and are located behind the reflectors. To gain access to the ballasts the reflectors may be easily removed be removing a several screws along the length of the reflector. See below. BALLAST REFLECTOR SCREWS LAMP CROSS SECTIONAL VIEW OF CORNICE LIGHT AREA 1.
CONTROL SETTINGS Johnson Controls Fan Status LED Defrost Compressor Status Status LED LED Manual Defrost Button Up Button Enter Button Down Button Factory Control Settings Parameter HY LL HL CC Co AH AL Ad At dF dE dt di dd dC dU dP dr iF id FF Fd Fr SF So Un PU Description Setpoint Hysteresis (differential) [1 to 9oF/oC] Setpoint Low Limit [67oF (55oC) to HL] Setpoint High Limit [LL to 99oF/oC] Anti-Short Cycling Timer [0 to 9 min.] Deep Freeze Cycle Time [0 to 99 min.
CONTROL SETTINGS Johnson Controls To program parameters: Error Code F1 Indicates an open or shorted temperature sensor. Cycle Power to reset control. F2 Indicates an open or shorted evaporator sensor. Correct problem to reset control. A1 Digital input was open for longer than time delay (id) and digital input option (if) 1 is selected. A2 Digital input is closed 1. Hold the “Enter” button down for about 10 seconds. The display will change to “Hy.
CONTROL SETTINGS ESC3 Controls Operation Temperature Control Temperature control in the ESC3 is accomplished by comparing the temperature reading of the case temperature probe against the temperature setpoint. The compressor output is used to control the temperature. If the temperature is above the temperature setpoint (L1) + the hysteresis setpoint (rd), the compressor output is turned on (subject to the conditions described in the compressor operation sec-tion).
CONTROL SETTINGS ESC3 Controls Table 1 Alarm Operation Code E0 E1 LO HI Ed Indications on the Display If the defrost, or compressor key blinks, it means that the corresponding function is delayed by a timing routine or inhibited. Other two-character messages may appear on the screen to indicate changes of state or alarm conditions. Values shown in Table 1. Viewing and Changing the Temperature Setpoint The temperature setpoint is the comparison point for the control temperature input.
User Level Setpoints - O5DMA Code PS /C rd dI dt dP dd d8 d/ AL AH F1 Fd H5 T Parameter Name Min Setpoint Password 0 Offset for air temp sensor -127 (in tenths of a degree: i.e. a value of “1” adds 0.1° to value) Regulator differential (superheat) set point (a “0” in this field = 0.5°C or 0.
WIRING DIAGRAMS- 16 MODEL O5DMA
CASE OPERATIONS Multi-Deck Self-Contained Produce/Dairy/Deli Merchandiser O5DMA - 4’, 6’ & 8’ System Requirements Model O5DMA 4’ 6’ 8’ Volts Phase Hz Wire Minimum Circuit Ampacity Maximum Overcurrent Protection 208 208 208 1 1 1 60 60 60 3 wire + ground 3 wire + ground 3 wire + ground 22.096 23.034 23.934 35 40 45 Drain Pump 120 Volts Evap.
DEFROST AND TEMP CONTROL The O5DMA uses timed off defrost as its primary defrost method. The timed-off defrost termination control probe is located in the middle fo the coil near the top as shown in the diagram below. Access to the probe can be gained by removing the lower rear baffle. The temperature control probe is located behind the 3 1/2” plug button in the top flue panel, also shown in the diagram below. Both of these probes are wired to the case controller mounted on top of the case.
AIR FLOW AND PRODUCT LOADING Cases have been designed to provide maximum product capacity within the refrigerated air envelope. It is important that you do not overload the food product display so that it impinges on the air flow pattern. Overloading will cause malfunction and the loss of proper temperature levels, particularly when discharge and return air sections are covered. Please keep products within the load limit lines shown on these diagrams. DISCHARGE..............1 LOAD LIMIT...............
USE AND MAINTENANCE The coil is covered to keep food fluids from entering, but the cover lifts up easily when coil cleaning is desired. The single piece fan plenum lifts up for cleaning, exposing a major portion of the inside bottom of the tank. Make certain fan plenum is properly closed after cleaning to avoid air leaks. Front return air grills snap out for cleaning; no fasteners are used. CASE CLEANING Case is designed to facilitate cleaning.
FANS 2 The evaporator fans are equipped with either 9 watt fan motors, 1550 RPM’s, or 12 watt fan motors, 1650 RPM’s. Both motors have a counter clockwise rotation when viewed from the shaft end. The fan blades are 8” in diameter and the blades are pitched to 37 degrees on each model as shown on the chart below. It is important that the blade pitch be maintained as specified. Do not attempt a field modification by altering the blades.
PARTS ORDERING 51 19 E19 25 22 13 82 12 38 86 81 15 36 20 87 9 88 11 1 3 26 2 17 24 50 E10 E09 E11 E20 E06 22 E07
Model O5DMA Location Number 1 2 3 9 11 12 13 15 17 19 20 22 24 25 26 36 38 50 51 69 75 81 82 83 86 87 88 E05 E06 E07 E08 E09 E10 E11 E19 E20 Part Descriptions Kickplate, PVC Extrusion, Storm Grey Master Bumper, Featherstone, Smoke, White, French Vanilla, Black Lower Front Panel, (only with curved front panel) Painted or Stainless Deck Pan, Painted, Unpainted, Stainless Front Baffle, Aluminum, Painted White, Custom Color, or Stainless Honeycomb, Discharge Rear Honeycomb Retainer, Painted White, Custom Color
PARTS ORDERING Procedure 1. Contact the Service Parts Department Hill PHOENIX 1925 Ruffin Mill Road Colonial Heights, Virginia 23834 Tel: 800-283-1109 Fax: 804-526-3897 2. Provide the following information about the part you are ordering: • Model number and serial number of the case on which the part is used. • Length of part, if applicable, I.E. 4’, 6’, 8’. • Color of part if painted, or color of polymer part. • Whether part is for left hand or right hand application.
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WARRANTY HEREINAFTER REFERRED TO AS MANUFACTURER FOURTEEN MONTH WARRANTY. MANUFACTURER’S PRODUCT IS WARRANTED TO BE FREE FROM DEFECTS IN MATERIAL AND WORKMANSHIP UNDER NORMAL USE AND MAINTENANCE FOR A PERIOD OF FOURTEEN MONTHS FROM THE DATE OF ORIGINAL SHIPMENT. A NEW OR REBUILT PART TO REPLACE ANY DEFECTIVE PART WILL BE PROVIDED WITHOUT CHARGE, PROVIDED THE DEFECTIVE PART IS RETURNED TO MANUFACTURER. THE REPLACEMENT PART ASSUMES THE UNUSED PORTION OF THE WARRANTY.
Warning Maintenance & Case Care When cleaning cases the following must be performed PRIOR to cleaning: To avoid electrical shock, be sure all electric power is turned off before cleaning. In some installations, more than one switch may have to be turned off to completely de-energize the case. Do not spray cleaning solution or water directly on fan motors or any electrical connections. All lighting receptacles must be dried off prior to insertion and re-energizing the lighting circuit.
