HARMONY HMO5153R (01) PDF Document

The HARMONY HMO5153R has dimensions of 50 7/8 inches Length by 32 1/8 inches Depth by 52 3/4 inches Height (length includes 1-inch end panels, and height includes levelers set at 1 1/4 inches below the base frame). It is a 33-inch deep self-service refrigerated bakery merchandiser designed to merchandise packaged products at 41 °F (5 °C) or less product temperatures.

Before and during unloading, check all equipment for damage.

For a 3rd Party Carrier: Describe the damage on the freight bill and obtain the signature of the driver. The carrier will supply the necessary claim forms. If these steps are not taken, the carrier may refuse your claim.

For Prepaid and Add: Contact the carrier and follow the same procedure as with a 3rd party carrier, and report the issue promptly.

Uncrating equipment at a facility other than the installation site may result in severe damage to the unit when transporting to the final destination. It is strongly recommended that equipment only be uncrated at the installation site.

For a 3rd Party Carrier: Contact the carrier within 10 days of delivery for their procedures, and retain all packaging. Failure to take these steps may cause the carrier to refuse your claim.

For Prepaid and Add: Contact the carrier and follow the same procedure as with a 3rd party carrier within 10 days of delivery.

If a shortage exists and it is the responsibility of the manufacturer, report it within 10 days from receipt of equipment.

If a shortage involves the carrier, notify the carrier immediately and request an inspection.

For Type 1 Conditions (most cases): Ambient store conditions are to be maintained at 55% maximum humidity and maximum temperatures of 75 °F (24 °C).

For Type 2 Conditions: Ambient store conditions are to be maintained at 60% maximum humidity and maximum temperatures of 80 °F (27 °C).

If unsure whether the unit is designed for Type 1 or Type 2, check the tag next to the serial label.

This equipment must be installed in compliance with all applicable NEC, federal, state, and local electrical and plumbing codes. Performance issues resulting from code violations are not covered.

Risk of electric shock: Disconnect power before servicing the unit.

Caution: More than one source of electrical supply is employed with units that have separate circuits. Disconnect all electrical sources before servicing.

Hazardous moving parts: Do not operate the unit with covers removed. Fan blades may be exposed when the deck panel is removed. Disconnect power before removing the deck panel.

Electric coil condensate pans are hot. Disconnect and allow the pan to cool before cleaning or removing it from the case.

If the N.E.C. (National Electric Code) or local code requires GFCI (Ground Fault Circuit Interrupter) protection, the use of a GFCI breaker is strongly recommended.

To avoid adverse conditions and performance issues:

The unit must be kept at least 15 feet from exterior doors, overhead HVAC vents, or any air curtain disruption to maintain proper temperatures.

The unit must not be exposed to direct sunlight or any heat source (ovens, fryers, etc.).

Keep at least 8 inches clearance above the unit for air discharge on self-contained units.

LED lamps reflect specific size, shape, and overall design; any replacements must meet factory specifications.

Fluorescent lamps have been treated to resist breakage and must be replaced with similarly treated lamps.

Water on flooring can cause extensive damage. Before powering up the unit, verify the following:

1. The condensate pan must be positioned directly under the condensate drain.

2. The condensate pan plug must be securely plugged into the receptacle.

3. Check that the overflow pan is fully functional.

4. If wicking material is used, check that it is secure.

To prevent risk of electric shock, if the cord or plug becomes damaged, replace it only with a cord and plug of the exact same type.

Each case has its own wiring diagram folded and placed in its own packet. Placement may vary; it may be placed near the ballast box, field wiring box, raceway cover, or another related location.

Remove the screws holding the case shipping brackets to the skid, then remove the case shipping brackets from the skid.

Step 1. To prevent damage, support the case while sliding it toward the edge of the skid.

Step 2. When the case is at the edge of the skid, carefully lower it to the floor so two levelers rest on the floor.

Step 3. Support the case while removing it from the skid, and carefully slide the skid out from under the case.

Step 4. After removal of the case from the skid, place it into position.

Step 1. Place a ramp up against the skid to allow the case to smoothly slide off from the skid.

Step 2. Maintain support of the case at all times, or the center of gravity may cause the case to fall.

Step 3. Unlock the casters.

Step 4. Slide the unit to the rear of the skid, slide down the ramp, and move off from the skid.

Self-contained refrigerated cases must maintain an airflow clearance of 6 inches minimum to 12 inches recommended at the front and rear. Restriction of air can void the warranty. Check air grilles regularly for obstructions.

Step 1. Begin all lineups leveling from the highest point of the floor.

Step 2. After the first case is level, apply industrial grade butyl caulk on non-visible areas at the case end, and use industrial grade silicone sealant on visible areas at the case end.

Step 3. Form two caulk/sealant lines: a Sanitation Bead and a Refrigeration Bead.

Step 4. Line up the second case bolt-hole to bolt-hole to the first case. Ensure the front of the cases are flush with each other and at the same height after leveling.

Step 5. Insert bolts in bolt hole locations using supplied hardware (decking may need to be removed to access lower bolt holes).

Step 6. Lightly tighten each of the 5 to 8 bolts in a cross-wise pattern. Work around the pattern, tightening more firmly at each pass. Do not firmly tighten one bolt and then start on the next.

Step 7. After the cases are bolted together, level the second case, repeating for each case to be adjoined.

Step 8. After all lined-up cases are level, seal all seams with industrial grade silicone sealant.

Step 1. Ensure the case is in proper position and aligned with adjoining cases.

Step 2. Remove the front and/or rear toe-kick to access the levelers if necessary.

Step 3. Use an adjustable wrench to adjust the leveler until the case is level and plumb.

Step 4. If necessary due to case weight, use a pry bar on the base frame only to raise the case. Do not use a pry bar on the toe-kick (it may buckle) or on an end panel (it may chip).

Before adjusting or shimming, ensure the case is in proper position. Use the provided shims under the frame support rails to level the case. After the case is in position, it must be sealed to the floor to prevent entry or leakage of liquid or moisture.

Step 1. Remove the front grille horizontal retainer screws (one at each end of the case).

Step 2. Remove the front grille vertical retainer screws located along the entire underside of the front panel.

Step 3. Allow the front grille to fall forward and lift it up and away from the case.

Step 4. To replace, install in reverse order and tighten the retainer screws.

The front grille is held in place with retaining hooks at each end of the grille. Simply lift the front grille up and off the case. No screws are required.

The removable magnetized condenser coil filter is positioned on the outside of the rear grille and held in place with magnetic strips. It can simply be lifted off for cleaning or service.

To remove the rear grille: Lift the grille slots up and off the rear panel retainer hooks.

To remove the rear panel: Remove the four Phillips screws (not flat-head) holding the panel in place.

At initial access to the refrigeration package, remove the compressor pan shipment screws (one located at each end). Due to location, a Phillips screw driver with an extension may be required.

1. Power Up: For remote units, the case is hard-wired and powers up when power is supplied. For self-contained units, turn on the main power switch located at the lower right rear of the case.

2. Temperature Controller: For self-contained units, the controller is located at the lower left rear of the case.

3. Turn on Lights: The light switch is located on the inside of the case at the top right, viewed from the rear. All lights should come on at the same time. A short warm-up period is normal for new bulbs (slight dimming or flickering is normal).

4. Series Lighting: Lighting is wired in series, so all lights must be plugged in or receptacles capped for case lights to turn on.

Step 1. Grasp the handle at the lower-front-center area of the case and pull upward.

Step 2. Attach the night air curtain magnets to the metal plate in front of the honeycomb. Magnets will hold it firmly in place.

Step 3. To retract, grasp the handle, lift straight up and off from its magnetic attachment, and carefully wind the curtain back into the roll in the lower section.

Caution: Do not allow the spring-loaded night air curtain to freely snap back into the roll, as this can destroy tension and retractability.

Caution: Do not slide or drag the curtain across the metal plate when extending and attaching; lift straight up and off to avoid scratching or marring the surface.

Installation/Placement: Center the night curtain along the angled honeycomb support. Attachment magnets hold it firmly in place.

Extension: Grasp the handle and pull downward to the desired area outside the acrylic sneeze guard.

Retraction: Grasp the handle, lift up and away from its magnetic attachment, and carefully wind the curtain back into the roll.

Caution: Do not allow the spring-loaded curtain to freely snap back into the roll, as this destroys tension and retractability.

Caution: Do not slide or drag the curtain assembly across the unit when removing; lift it straight up to prevent scratching or marring the honeycomb support.

Step 1. Due to weight and size, security grid installation requires two people.

Step 2. Hoist the security grid directly over the front air deflector.

Step 3. Drop the two security grid positioning tabs into the baffle airflow slots (one tab on each end).

Step 4. Once securely positioned in the airflow slots, carefully and slowly lean the security grid back against the two security brackets.

Step 5. Slide the two padlocks through the security grid and security brackets (one at each end).

Step 6. Securely lock the padlocks (one key fits both padlocks).

Step 1. Security grid removal requires two people due to weight and size.

Step 2. Unlock and remove the padlocks.

Step 3. Lean the security grid forward.

Step 4. Lift upward and out of the baffle airflow slots.

Step 5. Store the security grid, padlocks, and keys in a secure location to prevent theft or damage.

Step 1. Remove the glass shelves.

Step 2. For lighted shelving, unplug the light cord.

Step 3. Lift the light shelf upward to separate from the shelf brackets.

Step 4. Remove the rear shelf support.

Step 5. Remove the shelf brackets. Note: It may be necessary to remove the nylon shipping bracket retainer using pliers.

Removal: Rotate the lamp 1/4-turn in either direction to disengage the upper or lower pins/contacts from the lamp mounting sockets. Remove the bulb by applying even pressure from the back side at the bulb ends and pulling the remaining contact from the sockets.

Installation: Align the pins with the slot. Insert pins into the socket by rotating the bulb 1/4 turn to secure the contacts into the sockets. Rotate the remaining bulb contacts 1/4 turn into the remaining lamp-mounting socket contacts.

Removal: Disconnect the existing LED light from its brackets and self-adhesive tape. Firmly grasp the LED light while applying outward pressure to the brackets, then twist the LED out and away from the bracket to release.

Plug Positioning: Ensure the plug connects to the LED light at the raceway side of the case without the cord doubling-back.

Plug Insertion: The plug must be inserted properly or the LED will not light up. Connect the oval form of the plug into the oval form of the LED light.

Acrylic: Clean the acrylic sneeze guard daily with a mild soap and water solution and a soft cloth. Never use ammonia-based cleaners or abrasive cloths, as they will cause surfaces to cloud over time.

Glass: Clean side glass, front curved glass, and rear glass daily using household or commercial glass cleaner and a soft cloth.

Wood/Laminate/Painted Surfaces: Clean daily with a warm soap and water solution and a soft cloth. Never use wire cloth or abrasive cleaners.

Stainless Steel Surfaces: Follow dedicated stainless steel cleaning instructions daily.

Clean weekly to monthly (must be cleaned at least monthly):

Step 1. Remove the filter from the case.

Step 2. Submerse in warm, soapy water.

Step 3. Use a soft-bristled brush to remove dust, grease, and grime.

Step 4. Rinse thoroughly.

Step 5. Allow to dry completely before returning to the case.

Daily: Clean shelves, decks, and risers with a warm soap and water solution. For stubborn stains/residue, decks and risers can be removed and cleaned with soap and water or submersed in hot, soapy water. Rinse thoroughly, dry, and return to case.

Weekly: Wipe off shelf supports, air return grilles, and decking with a moist cloth. Shelf supports and air return grilles can be removed for thorough cleaning. Note: Decking is not to be removed by store personnel.

Clean monthly. Vacuum or brush the condenser coil at the case front. Use a metal or fiber brush to remove dust and dirt that collects on the condenser coils, taking care not to damage the fins on the coil.

Step 1. Wash with a solution of liquid dishwashing detergent and hot water.

Step 2. Rinse with pure hot water from a spray bottle and wipe with a clean sponge to remove soap residue lodged in microscopic grooves.

Step 3. Dry with a clean, soft cloth or paper towel.

Caution: Never clean with scouring powder or steel wool, as they mar, scratch, or erode the surface, allowing rust to form.

Method 1: Polish with a soft cloth or sponge using a solution of one part vinegar to two parts water in a spray bottle.

Method 2: Sprinkle baking soda on a sponge and rub gently with a soft cloth or sponge.

After brightening: Rinse with pure hot water from a spray bottle while wiping with a clean sponge, then dry with a soft cloth or paper towel.

Method 1: Place two teaspoons of rubbing alcohol on a microfiber cloth or pad. Rub along the grain of the appliance until the entire area is wiped. The rubbing alcohol will air dry.

Method 2: Dip a soft cloth or sponge in club soda and rub gently over the area of concern.

After removal: Rinse with pure hot water from a spray bottle while wiping with a clean sponge, then dry with a soft cloth or paper towel.

Step 1. Place a dab of olive oil onto a clean, soft cloth.

Step 2. Spread over the area until a light sheen is observed, applying firm, steady pressure using small circular motions to work the oil into the small grooves.

Step 3. Dry buff by removing excess oil with a clean cloth or paper towel using small circular motions, or wet buff using an ounce of white vinegar with a clean cloth or paper towel until the oily finish is removed.

Step 4. Rinse with pure hot water from a spray bottle while wiping with a clean sponge, then dry with a soft cloth or paper towel.

Treat rust using commercial products such as CLR (calcium, lime, and rust remover) or Chemetall Oakite 33 (rust, oxides, and scale remover). Carefully observe and follow the product’s precautions and instructions to prevent food contamination, personal injury, or further corrosion.

1. Check that the light switch is in the on position.

2. Check that all light cords and plugs are properly connected and capped where appropriate.

3. If the lights still do not turn on, call a service provider.

1. Pre-chilling: If a large amount of warm product was added, it takes time to adjust; product must be pre-chilled before placement.

2. External Factors: Check that the case is not exposed to direct sun or near a heating or air-conditioning vent.

3. Cleanliness: Check that the air filter and condenser coil have been cleaned.

4. Airflow Obstructions: Check air return grilles (area at front of decking) for obstructions. Do not set product on air grilles, as this prevents proper airflow.

5. If temperature remains improper, call a service provider.

Caution: Rotating fans are present. Turn off the case and disconnect the plug from the wall outlet before beginning cleaning.

Step 1. Turn off power.

Step 2. Remove decks from the case.

Step 3. Clean the fan shroud area and surrounding tub area with a moist cloth.

Caution: Turn off the case and disconnect the power plug before cleaning.

Step 1. Vacuum the tub under the decks.

Step 2. Clean with a soap and water solution.

Step 3. Wipe dry with a clean cloth.

Step 4. Keep the drain free of debris to prevent clogging.

Quarterly maintenance (hot gas condensate pans only):

Step 1. Slide the refrigeration system out from under the unit.

Step 2. Inspect the wicking material to see if it is dirty, worn, tattered, torn, or disintegrating.

Step 3. If decomposing or in disrepair, replace with new wicking material.

Caution: Water on flooring causes damage. Until the cause is resolved:

1. Use a wet-dry vacuum (or mop and bucket) to remove standing water.

2. Use catch pans for water drainage, swapping them out regularly until the case has completely drained or power/function is restored.

1. Check that the drain trap is completely free of debris.

2. Check that the drain hose is correctly positioned over the evaporator pan (or floor drain for remote units).

3. Check store ambient conditions (maximum 55% humidity / 75 °F for NSF Type 1; 60% humidity / 80 °F for NSF Type 2).

4. Check the evaporator pan float for proper operation (heat rod evaporator systems).

5. Check that the evaporator pan is properly plugged in or connected, and not malfunctioning.

6. Verify continuous power supply (disruption of power causes pans to overflow).

7. Check and replace dirty, worn, or disintegrating wicking material on hot gas evaporator packages.

1. Check that the case is aligned, level, and plumb.

2. Check the evaporator fan for cleanliness.

3. Unplug/power off fan motors and check the motor shaft for bearing wear.

4. Check that fan motors are securely mounted in brackets.

5. Verify that fan blades are securely mounted to the fan motor.

6. Check that nothing is preventing blade rotation.

7. Check that the fan shroud is properly secured.

1. Check that the MAIN power switch is turned on.

2. Check that fans are plugged in at the fan shroud.

3. Check for foreign material obstructing fan performance.

4. Check that fan blades freely rotate within fan shrouds.

5. Check that electrical power is reaching the fans.

6. Check that fan wiring is properly connected on terminal blocks.

1. Check that utility power is supplied.

2. Check that the MAIN power switch is in the on position.

3. Check the circuit breaker box for tripped circuits.

Flashing Display: Check the case serial label for specified settings.

Defrost Mode: Temperature rises during defrost mode and returns to normal afterward; the fourth LED indicates defrost cycle in progress.

Heat/Air Disruption: Check for nearby HVAC vents, sunlight, or proximity to store entrance doors.

Coil/Air Filter: Check that the condenser coil and magnetic air filter are clean.

Charge/Settings: Check sight glass for flashing or low refrigerant charge, and verify the setpoint temperature is not set too high.

1. Check that the condensing coil is not dirty or covered.

2. Check that condensing fans are working.

3. Check that refrigerant is not overcharged.

4. Check to verify that a non-condensable is not in the system.

5. Check that the liquid line drier is not plugged.

6. Check that there are no close-offs around the condensing coil.

7. Check the temperature setpoint (it may be adjusted too high).

8. Check system operating temperatures.

9. Check that store ambient temperature is not above the maximum allowed.

1. Refrigerant charge is too low.

2. Suction pressure is too low.

3. Compressor valves are bad.

1. Low refrigerant charge.

2. Expansion valve (TXV valve) is restricted.

3. Liquid line or filter is restricted.

4. Evaporator motors are not working.

5. High superheat needs adjusting.

6. Thermostatic element charge is depleted.

7. Air seepage around the condensing coil.

8. Evaporator coil is iced up.

1. Refrigerant charge is too high.

2. Compressor valves are defective.

3. Cooling load is excessively high.

4. Superheat adjustment is too low.

5. TXV bulb installation issues (poor thermal contact or located in a warm location).

6. Undersized compressor capacity for application.

Warning: Turn off case before performing maintenance. Coil fins are sharp; handle with care.

Step 1. Remove panel to access the area by lifting up and off or removing screws.

Step 2. Use air pressure or an industrial strength vacuum to clean dust and dirt from the condenser coil.

Step 3. Caution: Use wet rags to cover the area where air pressure blows to avoid contaminating food with airborne dust.

Step 4. Reinstall the panel.

Caution: Disconnect power and allow the hot evaporator pan to cool before cleaning.

Step 1. Slide/roll the compressor package out from under the case.

Step 2. Use a scrub brush and de-scaling solution (such as CLR) to clean the evaporator pan of corrosion, lime, and rust.

Step 3. If electric heater coil pans are present, remove and clean them.

Step 4. Rinse thoroughly with clean water from a spray bottle and wipe dry with a sponge or paper towel.

Step 5. Use a moist cloth to wipe dust and debris off fans, sight glass, and overflow pan.

Step 6. Slide the assembly back under the case and reattach panels.

Quarterly: Once the refrigeration package is slid clear of the unit, vacuum under the case to remove dust and dirt that accumulates underneath.

Caution: Disconnect power from the case before cleaning.

Step 1. Use a vacuum to clean the entire area.

Step 2. Clean the area with warm water, a clean cloth, and a mild soap solution.

Step 3. Remove any debris that may clog the drain.

Step 4. Wipe down fan blades, motors, and brackets with a moist cloth.

Step 1. Wedge a non-metallic device of suitable strength (such as a ballpoint pen) between the honeycomb and the end panel. Caution: Use care not to dislodge the heating wire that prevents condensation on the lamp assembly.

Step 2. Apply pressure to collapse the honeycomb to allow it to be pulled out of the honeycomb retainer.

Step 3. Carefully pry downward and away from the honeycomb retainer.

Cleaning: Clean with warm water and soap solution. Submerse if necessary. Use a brush to dislodge stubborn or sticky residue. Dry using the blow mode of a vacuum (versus suction mode).

Installation:

Step 1. Squeeze the honeycomb to allow it to fit into the honeycomb retainer.

Step 2. Carefully slide the honeycomb into place.

Step 3. Adjust the honeycomb so that it fits flat against the retainer. It must not be wavy or out of position.

Step 1. Press and hold the “SET” key for at least 1 second.

Step 2. Use the arrow keys (Up / aux or Down / def) to increase or decrease the setpoint.

Step 3. Quickly press and release the “SET” key again to save.

Step 1. Press and hold “Prg/mute” and “SET” keys together for 5 seconds; the display will flash “0” (password prompt).

Step 2. Confirm by pressing the “SET” key.

Step 3. Press the Up or Down arrow key to navigate to the category/parameter to be modified.

Step 4. Press “SET” to modify the selected parameter.

Step 5. Increase or decrease the value using the Up or Down button.

Step 6. Press “SET” to temporarily save the new value and return to the parameter display.

Step 7. Press and hold “Prg/mute” for at least 5 seconds to permanently save changes. This also mutes the buzzer and deactivates the alarm relay.

Warning: If no button is pressed within 60 seconds (timeout) or power is turned off before pressing “Prg”, all modifications are lost.

Step 1. Press and hold “Prg/mute” and “SET” keys together for at least 5 seconds until “0” displays.

Step 2. Confirm by pressing “SET”.

Step 3. Press Up or Down arrow until reaching parameter “/ 5”.

Step 4. Press “SET” to select the parameter.

Step 5. Press Up or Down to set value: “0” for Celsius (°C) or “1” for Fahrenheit (°F).

Step 6. Press “SET” to temporarily save the value.

Step 7. Press and hold “Prg/mute” for at least 5 seconds to save changes. All values automatically convert without manual recalculation.

To Activate Manual Defrost: Press and hold the “def / Down” key for at least 5 seconds.

To Activate / Deactivate Auxiliary Output: Press and hold the “aux / Up” key for 1 second.

To Reset Alarms with Manual Reset: Press and hold both the “Prg/mute” and “aux / Up” keys together for at least 1 second.