AVANTCO 189WVAC28HC Vertical Open Air Merchandisers

Product Information

User Manual

Date: 05/2023

Model: 189VAC28HC

Product: Vertical Open Air Merchandisers

Base Models:

• 189WVAC28HC

• 189BVAC36HC

• 189WVAC36HC

• 189BVAC46HC

• 189WVAC46HC

Warnings

• Trained service personnel required for servicing.
• Do not puncture refrigerant tubing.
• Read owner’s guide before attempting to service the product.
• Handle with care as flammable refrigerant is used.
• Follow handling instructions in compliance with local government regulations.

product Installation

This unit is intended for use in a temperature-controlled environment with a temperature less than 75 degrees Fahrenheit and 55% relative humidity. Malfunction due to improper conditions is not covered under warranty.

The unit should be located away from doors, air ducts, and fans that could disrupt airflow and negatively impact performance.

Electrical

Your new refrigerator is already factory-set to run at optimum temperatures 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.

Running a Manual Defrost Cycle

The 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 the defrost button (snowflake symbol and down arrow) for approximately 3 seconds.
2. Repeat to stop the defrost cycle.

Operation / Maintenance

WARNING: Disconnect the power cord before cleaning any parts of the unit. We strongly recommend that any servicing be performed by an authorized service technician.

Loading Product

No specific instructions provided in the user manual.

Cleaning the Condenser Coil

No specific instructions provided in the user manual.

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 55% relative humidity. Malfunction due to improper conditions is not covered under warranty.
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 still 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 not stand inside unit.
• Please read through the manual in its entirety.
• This unit is designed to perform in a temperature-controlled environment at 55% relative humidity. The unit should be located away from doors, air ducts, and fans that could disrupt airflow and negatively impact performance.

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.
  • Uneven floors may cause leaking or water on the floor.
• Install the unit in an indoor, well-ventilated area.
  • For best performance, please maintain clearance of 6” on the back of the unit.
  • 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 55% can cause the unit to rust, collect condensation, and may decrease efficiency.
  • Dust collected on the condenser coil will cause the unit to malfunction.
  • Malfunctions due to temperatures above 75 degrees Fahrenheit, humidity above 55%, or improperly maintained condenser coil will void the warranty.
• Select a location away from heat and moisture-generating equipment.
  • Ambient temperatures above 75 degrees Fahrenheit may cause the compressor to malfunction.
  • The unit should not be used in areas over 90 degrees Fahrenheit.
  • Malfunctions due to ambient temperatures above 75 degrees Fahrenheit will void the warranty.
  • Do not install the 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. NEVER USE AN ADAPTER PLUG! Please refer to the electrical requirements on the unit’s nameplate.
• This unit should have it’s own dedicated outlet.
• Do not use extention cords.
• Do not unplug your cooler by pulling on the power cord. Grip the plug firmly and pull straight out from the outlet.
• 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.

Adjusting Temperature

Your new refrigerator is already factory-set to run at optimum temperatures 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.
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:

Digital Control Units

• Hold “SET” for 1 sec. The display will flash the current minimum temperature.
• Use the arrow buttons to adjust the minimum temperature you want it to run at.
• Press “SET” again to save your settings.

Always remember to calculate the differential if you change the minimum temperature setting. The cabinet temperature will fluctuate up to +4 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.

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 the defrost button (snowflake symbol and down arrow) for approximately 3 seconds.
2. Repeat to stop the defrost cycle.

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. Automatic defrost timers automatically initiate at pre-set intervals and for a pre-determined duration.

• If drainage pipe is available, lower the condensation drainage pipe and connect to a drain or condensa-tion pump. Verify the pipe is unobstructed and it is lower than the water reciever indicated by the line on the sticker.
• If no drain is available, the condensation drainage pipe can be hung up. The excess water will be evapo-rated with the condensate evaporator pan. Note that the use of this option will increase the energy consumption of the unit.
• WARNING: High humidity enviroments can cause increased amounts of condensation that can over-flow the evaporator pan. Connecting the drainage pipe to a nearby drain is necessary for enviroments exceeding 55% relative humidity.

Safety / Warning

Please pay close attention to the safety notices in this section. Disregarding these notices may lead to seri-ous 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

• Do not block the air duct/fan at the top of the unit. Maintain a minimum of 4” of clearance between products and the fan at all times.
• 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 Condenser Coil

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

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.
• 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.

Condenser Coil Cleaning Instructions:
A dusty condenser may lead to high energy consumption, less cooling effectiveness, and compressor damage.
The condenser coil is located at the bottom behind the panel.

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

Compressor is Not Running

| ****

Fuse blown or circuit breaker tripped

Replace fuse or reset circuit breaker

Power cord unplugged

Plug in power cord

Thermostat set too high

Set thermostat to lower temperature

Cabinet in defrost cycle

Wait for defrost cycle to finish

Unit is Leaking Water

| ****

Condensate evaporator is overflowing

Use drainage pipe to drain excess water to nearby drain or pump

High relative humidity

This refrigerator is designed to perform in temperature-controlled enviroments up to 75˚F and 55% relative humidity

Drainage is tube clogged

Verify the drainage tube is clear and obstructed

Temperature controller failed

Contact licensed service technician

Condensate evaporator has failed

Contact licensed service technician

Unit is not on level ground

Adjust the unit to make sure it is level for condensate flow to the pan

Unit is Making Noise Under Bottom Shelf

| ****

Fan blade is broken

Replace fan blade

Unit is Not Cooling

| ****

Unit is turned off

Turn unit on

Defrost cycle is running

End defrost cycle

Refrigerant leaking

Contact licensed service technician

High Cabinet Temperature Caused by Weak Air Flow

| Evaporator coil is frosted over

Run a manual defrost cycle

Fan is damaged

Replace the fan

The set point on the controller is too high

Set the controller to a lower temperature

The set temperature is the lowest temperature the refrigerator will reach

Air flow is blocked by product

Rearrange or remove product to allow for complete air flow

High Cabinet Temperature with Normal Air Flow

| ****

Refrigerant leaking

Contact licensed service technician

The set point on the controller is too high

Set the controller to a lower temperature

The set temperature is the lowest temperature the refrigerator will reach

Expansion valve failed

Contact licensed service technician

The air curtain is being disturbed by strong air flow

Make sure the cabinet is located away from doors, windows, and other air vents

High ambient temperature or humidity

This refrigerator is designed to perform in temperature-controlled enviroments up to 75˚F and 55% relative humidity

Cabinet Temperature is Fluctuating

| ****

Condensor coil is dirty

Clean condensor coil

Unit has improper air flow

Make sure the has unit at least 6″ of clearance on the back and that the front vents are not obstructed

Expansion valve failed

Contact licensed service technician

Temperature control failed

Contact licensed service technician

Low refrigerant levels

Contact licensed service technician

Gasket is not sealing properly

Clean, repair, or replace the gasket as necessary

Relative humidity above 55%

Move unit to area below relative humidity or lower humidity level

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