AVANTCO REFRIGERATION Z Series Undercounters Worktops User Manual

User Manual
02/2024

178ZUC27FHC

178ZUC27FHC

Z Series
Undercounters/ Worktops

Z Series Undercounters Worktops

Base Models:

Undercounter

178ZUC27FHC| 178ZUC27RWMS| 178ZUC36RHC| 178ZUC48FWMS| 178ZUC60FHC| 178ZUC60RWMS
178ZUC27FWMS| 178ZUC36FHC| 178ZUC36RWMS| 178ZUC48RHC| 178ZUC60FWMS| 178ZUC72RHC
178ZUC27RHC| 178ZUC36FWMS| 178ZUC48FHC| 178ZUC48RWMS| 178ZUC60RHC| 178ZUC72RWMS
Worktop

178ZWT27FHC| 178ZWT27RWMS| 178ZWT36RHC| 178ZWT48FWMS| 178ZWT60FHC| 178ZWT60RWMS
178ZWT27FWMS| 178ZWT36FHC| 178ZWT36RWMS| 178ZWT48RHC| 178ZWT60FWMS| 178ZWT72RHC
178ZWT27RHC| 178ZWT36FWMS| 178ZWT48FHC| 178ZWT48RWMS| 178ZWT60RHC| 178ZWT72RWMS

Note:
Please read the manual thoroughly prior to equipment setup, operation, and maintenance.
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Please read handbook before using equipment and keep for future use.
NOTICE – USE THIS APPLIANCE FOR ITS INTENDED PURPOSES AS DESCRIBED IN THIS USER MANUAL.
A PROPERLY MAINTAINED UNIT WILL GIVE YOU MANY YEARS OF TROUBLE-FREE SERVICE.

Warnings

DANGER – RISK OF FIRE OR EXPLOSION. FLAMMABLE REFRIGERANT USED. TO BE REPAIRED ONLY BY TRAINED SERVICE PERSONNEL. DO NOT PUNCTURE REFRIGERANT TUBING.
CAUTION – RISK OF FIRE OR EXPLOSION. FLAMMABLE REFRIGERANT USED. CONSULT REPAIR MANUAL/OWNER’S GUIDE BEFORE ATTEMPTING TO SERVICE THIS PRODUCT. ALL SAFETY PRECAUTIONS MUST BE FOLLOWED.
CAUTION – RISK OF FIRE OR EXPLOSION DUE TO PUNCTURE OF REFRIGERANT TUBING; FOLLOW HANDLING INSTRUCTIONS CAREFULLY. FLAMMABLE REFRIGERANT USED.
CAUTION – RISK OF FIRE OR EXPLOSION DUE TO FLAMMABLE REFRIGERANT USED. FOLLOW HANDLING INSTRUCTIONS CAREFULLY IN COMPLIANCE WITH LOCAL GOVERNMENT REGULATIONS.

Installation

This unit is intended for use in a temperature-controlled environment less than 75 degrees Fahrenheit and 60% relative humidity.
IMPORTANT – Please Read Before Installation:

• If the shelf has a raised lip, the lip needs to be installed facing up towards the rear of the cabinet to promote proper air flow. Failure to install the shelves properly is considered user error and is not covered by warranty.
• If the unit has recently been transported on its side, please let the unit stand upright for a minimum of 24 hours before plugging it in.
• Make sure that the unit has reached the desired temperature before loading the unit with products. This unit is meant for keeping cold products cold, not chilling warm products.
• Make sure that there is proper ventilation around the unit in the area where it will operate.
• Make sure all accessories are installed (i.e., shelves, shelf clips, casters) before plugging the unit in.
• Do not attempt to remove or repair any component of the unit. Consult an authorized service technician for servicing/repair.
• Do no hang on doors or sit inside the unit. Do not sit or stand on top of the unit.
• Please read through the manual in its entirety.
• This unit should be located away from doors, air ducts, and fans that could disrupt airflow and negatively impact performance.
• This unit is designed to perform in a temperature-controlled environment at 60% relative humidity.

Cabinet Location Guidelines

• Install the unit on strong and leveled surfaces.
  – If the surface is uneven, the unit may be noisy.
  – The unit may malfunction if the surface is uneven.

• Install the unit in an indoor, well-ventilated area.
  – Brackets should be attached on the back of the unit.
  – Do not use outdoors. For indoor use only.
  – Avoid direct sunlight.

• Avoid installation in a high humidity and/or dusty area.
  – Humidity above 60% can cause the unit to rust, collect condensation, and may decrease efficiency.
  – Dust collected on the condenser coil will cause the unit to malfunction.

• Select a location away from heat and moisture-generating equipment.
  – Ambient temperatures above 75 degrees Fahrenheit may cause the compressor to malfunction.
  – For optimal performance, this unit should not be used in environments with ambient temperatures exceeding 75 degrees Fahrenheit.
  – The unit should not be placed in areas with an ambient temperature over 90 degrees Fahrenheit.
  – Equipment malfunctions due to ambient temperatures above 90 degrees could void the warranty.
  – Do not install this unit inside a closet or alcove.

Electrical

• Please ensure that the required voltage is being supplied at all times.
• The unit should be plugged into a grounded and properly sized electrical outlet with appropriate over-current projection. Please refer to the electrical requirements on the unit’s nameplate.
• The unit should have its own dedicated outlet.
• Do not use extention cords.
• Ensure the unit is not resting on or against the electrical cord.
• If the unit is not in use for a long period of time, please unplug the unit from the outlet.
• To avoid shock and fire hazards, do not plug in or unplug the unit with wet hands.
• After unplugging the unit, wait at least 10 minutes before plugging it back in. Failure to do so could cause damage to the compressor.
• In the event of damage to the electric wires or plug, please contact the after-sales service. Do not attempt to repair it yourself.
• If the voltage is unstable, please choose the suitable automatic voltage regulator.

Adjusting the Temperature
Your new refrigerator or freezer is already factory set to run at optimum temperature for food safety and should require no adjustments.
Refrigerators are set to cycle between a minimum temperature of 33 degrees Fahrenheit and a maximum temperature of 40 degrees Fahrenheit.
Freezers are set to cycle between a minimum temperature of -5 degrees Fahrenheit and a maximum temperature of 2 degrees Fahrenheit.
Adjusting the temperature changes the minimum temperature your unit will run at. Your unit will not run constantly at this setting.
To change it, follow these instructions:

Controller

1. Hold down the menu button for 3 seconds. At this time, the display screen displays “–”, then background button lights up.
2. Select button and click. At this time, enter temperature setting interface. The display screen displays the current set value.
3. Adjust the downtime temperature value used by the user pressing ” ” ” ”
4. After the adjustment, click the menu button to return the menu selection interface.
5. Wait for about 7 seconds. The digital display will automatically save and exit and return to the normal display interface.

Always remember to calculate the differential if you change the minimum temperature setting.
The cabinet temperature will fluctuate up to +7 degrees over your set minimum temperature as the compressor runs and shuts off. Setting the temperature too high will result in unsafe maximum temperatures and possible health code violations.
Your Z Series unit compressor will continue to run when the door is left ajar. After 15 minutes of being left ajar, an audible alarm will sound. At the same time, the display board will

Running a Manual Defrost Cycle
This unit is pre-programmed to run automatic defrost cycles at preset intervals. However, if you would like to run a manual defrost cycle at any time, please follow the steps below:

1. Press and hold the menu key for 3 seconds to enter the menu selection interface. At this time, the display screen displays “–”, then background button lights up.
2. Click the button in the upper left corner to start manual defrosting.
3. Wait for about 7 seconds. The digital display returns to the normal display interface.

Defrost System
Refrigerator coils are kept below the freezing point (32 degrees Fahrenheit). During compressor downtime, the evaporator fan continues to circulate air through the evaporator coil. This air circulation raises the coil temperature above the freezing point, melting any accumulated frost. Run-off water is drained into the evaporator pan and evaporated. Freezer coils are defrosted electrically. Automatic defrost timers automatically initiate at pre-set intervals and for a pre-determined duration.

Safety / Warning

Please pay close attention to the safety notices in this section. Disregarding these notices may lead to serious injury and/or damage to the unit.

ATTENTION

• To minimize shock and fire hazards, be sure not to overload outlet. Please designate one outlet for your unit.
• Do not use extension cords.
• Do not put your hands under the unit while it is being moved.
• When the unit is not in use for a long period of time, please unplug the unit from the outlet.
• After unplugging the unit, wait at least 10 minutes before plugging it back in. Failure to do so could cause damage to the compressor.

UNPLUG CORD

• To minimize shock and fire hazards, please do not plug or unplug the cord with wet hands.
• During maintenance and cleaning, please unplug the unit.

PROPER GROUNDING REQUIRED

• To minimize shock and fire hazards, make sure that the unit is properly grounded.

WARNING

• Do not attempt to remove or repair any component unless instructed by factory.
• Make sure that the unit is not resting on or against the electrical cord and plug.
• To minimize personal injury, do not hang on the doors.
• Do not store any flammable and explosive gas or liquids inside the unit.
• Do not attempt to alter or tamper with the electrical cord.

Operation / Maintenance

WARNING: DISCONNECT THE POWER CORD BEFORE CLEANING ANY PARTS OF THE UNIT.
NOTE: We strongly recommend that any servicing be performed by an authorized service technician.
Loading Product

• Ensure there is at least four inches of clearance from the evaporator.
• Ensure all shelves are sitting level and properly secured before loading products.
• Do not store flammable and explosive gas or liquids inside the unit.

Cleaning the Fan Blades and Motor

• If necessary, clean the fan blades and motor with a soft cloth.
• If it is necessary to wash the fan blades, cover the fan motor to prevent moisture damage.

Cleaning the Interior of the Unit

• When cleaning the cabinet interior, use a solvent of warm water and mild soap.
• Do not use steel wool, caustic soap, abrasive cleaners, or bleach that may damage the interior finish.
• Wash door gaskets on a regular basis, preferably weekly. Simply remove the door gasket from the frame of the door, soak in warm water and soap for thirty (30) minutes, dry it with a soft cloth, and replace it.
• Check door gaskets for proper seal after they are replaced.
• Periodically remove the shelves and pilasters from the unit and clean them with mild soap and warm water. To remove the pilasters, first, remove the shelves and shelf brackets. Then, simply lift the pilaster up and out.

Cleaning the Condenser Coil
A dusty condenser may lead to high energy consumption, less cooling effectiveness, and compressor damage.

• For efficient operation, keep the condenser surface free of dust, dirt, and lint.
• We recommend cleaning the condenser coil at least once per month.

Condenser Coil Cleaning Instructions:

1. Disconnect the electrical power from the unit.
2.  Remove the front cover and base cover with a screwdriver.
3. Using a soft brush and/or vacuum, remove the dirt, lint, etc. from the finned condenser coil in a vertical direction.
4. Clean the condenser with a commercial condenser coil cleaner, available from any kitchen equipment retailer. Ex: Noble Chemical Tech Line.
5. After cleaning, straighten any bent condenser fins with a fin comb.
6. When finished, be sure to reinstall the front cover and base cover.
7. Reconnect the electrical power to the unit.

Troubleshooting

or reset circuit breaker.
Power cord unplugged.| Plug in power cord.
Thermostat set too high.| Set thermostat to lower temperature.
Cabinet In defrost cycle.| Walt for defrost cycle to finish.
Condensing units run for long periods of time.| Excessive amount of water product in cabinet.| Allow adequate time for product to cool down.
Prolonged door opening or door ajar.| Ensure doors are closed when not in use. Avoid opening the doors for long periods of time.
Door gasket(s) not sealing properly.| Ensure gasket(s) are snapped in completely. Remove gasket and wash with soap and water. Check condition of gasket and replace if necessary.
Dirty condenser coll.| Clean the condenser coll. (Page 8)
Evaporator coil iced over.| Unplug unit and allow coil to defrost. Make sure thermostat is not set too cold. Ensure that door gasket(s) are sealing properly.
Cabinet temperature Is too warm.| Thermostat set too warm.| Set thermostat to lower temperature.
Airflow blocked.| Re-arrange product to allow for proper air flow. Make
sure there is at least 46 of clearance from evaporator.
Excessive amount of warm product placed in cabinet.| Allow adequate time for product to cool down.
Fuse blown or circuit breaker tripped.| Replace fuse or reset circuit breaker.
Dirty condenser coll.| Clean the condenser coll. (Page 8)
Evaporator coil iced over.| Ensure doors are closed when not in use. Avoid opening doors for long periods of time.
Low refrigerant levels.| Contact a service technician to check refrigerant levels.
Door is slightly ajar.| Make sure door is completely closed.
Condensation is collecting on the cabinet and/or floor.| Gasket is not sealing properly.| Clean, repair, or replace the gasket as necessary.
Relative humidity Is above 60%.| Move unit to area below relative humidity or lower humidity level.

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