Avantco 189WVAC28HC User manual

User Manual
www.AvantcoRefrigeration.com
05/2023
Please read the manual thoroughly prior to equipment set-up, operation and maintenance.
#189WVAC28HC
#189WVAC28HC
#189BVAC36HC
#189WVAC36HC
#189BVAC46HC
#189WVAC46HC
Note:
Base Models:
Vertical Open Air
Merchandisers
189VAC28HC

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User Manual
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Vertical Open Air Merchandisers
Table of Contents
Warnings.......................................................................................................................................... 3
Installation ....................................................................................................................................... 4
Cabinet Location Guidelines...................................................................................................... 4
Electrical .......................................................................................................................................... 5
Adjusting Temperature ................................................................................................................ 5
Safety / Warning ............................................................................................................................ 6
Operation / Maintenance ............................................................................................................ 7
Troubleshooting............................................................................................................................. 9-10

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Vertical Open Air Merchandisers
DANGER – RISK OF FIRE OR EXPLOSION. FLAMMABLE REFRIGERANT USED. TO BE REPAIRED ONLY BY
TRAINED SERVICE PERSONNEL. DO NOT PUNCTURE REFRIGERANT TUBING.
PELIGRO – RRIESGO DE INCENDIO O EXPLOSION. REFRIGERANTE INFLAMABLE UTILIZADO. PARA
SER REPARADO SOLAMENTE POR PERSONAL DE SERVICIO CALIFICADO. NO PINCHAR LA TUBERÍA
REFRIGERANTE.
DANGER – RISQUE DE FEU OU D’EXPLOSION. LE FRIGORIGÈNE EST INFLAMMABLE. CONFIER LES
RÉPARATIONS À UN TECHNICIEN SPÉCIALISÉ. NE PAS PERFORER LA TUBULURE CONTENANT LE
FRIGORIGENE.
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.
ATENCION – RIESGO DE INCENDIO O EXPLOSIÓN. REFRIGERANTE INFLAMABLE
UTILIZADO. CONSULTE EL MANUAL DE REPARACIÓN / GUÍA DEL PROPIETARIO ANTES DE INTENTAR DAR
SERVICIO A ESTE PRODUCTO. DEBEN CUMPLIR CON TODAS LAS PRECAUCIONES DE SEGURIDAD.
ATTENTION – RISQUE DE FEU OU D’EXPLOSION. LE FRIGORIGÈNE EST INFLAMMABLE. CONSULTER LE
MANUEL DU PROPRIÉTAIRE/GUIDE DE RÉPARATION AVANT DE TENTER UNE RÉPARATION. TOUTES LE
MESURES DE SÉCURITÉ DOIVENT ÊTRE RESPECTÉES.
CAUTION – RISK OF FIRE OR EXPLOSION DUE TO PUNCTURE OF REFRIGERANT TUBING; FOLLOW
HANDLING INSTRUCTIONS CAREFULLY. FLAMMABLE REFRIGERANT USED.
ATENCION – RIESGO DE INCENDIO O EXPLOSIÓN DEBIDO A LA PERFORACION DE LA TUBERÍA
REFRIGERANTE; SIGA LAS INSTRUCCIONES DE MANIPULACIÓN CON CUIDADO. REFRIGERANTE
INFLAMABLE UTILIZADO.
ATTENTION – RISQUE DE FEU OU D’EXPLOSION SI LA TUBULURE CONTENTANT LE FRIGORIGÈNE EST
PERFORÉE; SUIVRE LES INSTRUCTIONS DE MANUTENTION AVEC SOIN. LE FRIGORIGÈNE EST
INFLAMMABLE.
CAUTION – RISK OF FIRE OR EXPLOSION DUE TO FLAMMABLE REFRIGERANT USED.
FOLLOW HANDLING INSTRUCTIONS CAREFULLY IN COMPLIANCE WITH LOCAL GOVERNMENT
REGULATIONS.
ATENCION – RIESGO DE INCENDIO O EXPLOSIÓN DEBIDO A REFRIGERANTE INFLAMABLE UTILIZADO.
SIGA LAS INSTRUCCIONES DE MANIPULACIÓN CON CUIDADO CONFORME A LAS REGLAS DE LA
MUNICIPALIDAD.
ATTENTION – RISQUE DE FEU OU D’EXPLOSION SI LE FRIGORIGÈNE EST INFLAMMABLE. SUIVRE LES
INSTRUCTIONS DE MANUTENTION AVEC SOIN CONFORMÉMENT AUX RÈGLEMENTATION
GOUVERNEMENTALE LOCAUX.
Warnings

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Vertical Open Air Merchandisers
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.
Installation
• 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 eciency.
- 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.
Cabinet Location Guidelines

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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 dierential 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 o. Setting the temperature too high will result in unsafe maximum temperatures and possible health
code violations.
• 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.
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.
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:
Adjusting Temperature
set
mute

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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.
Safety / Warning
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-o 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.

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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.
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 ecient 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.
Operation / Maintenance

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Vertical Open Air Merchandisers
Condenser Coil Cleaning Instructions:
A dusty condenser may lead to high energy consumption, less cooling eectiveness,
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.

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Troubleshooting
Problem Possible Solution
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 o
Turn unit on
Defrost cycle is running
End defrost cycle
Refrigerant leaking
Contact licensed service technician

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Problem Possible Solution
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