Avantco 178UDD1HC User manual

User Manual
www.AvantcoRefrigeration.com
08/2023
Please read the manual thoroughly prior to equipment set-up, operation, and maintenance.
#178UDD1HC
#178UDD1HCS
#178UDD2HC
#178UDD2HCS
#178UDD3HC
#178UDD3HCS
#178UDD4HC
#178UDD4HCS
#178UDD48HC
#178UDD48HCS
#178UDD60HC
#178UDD60HCS
#178UDD36HC
#178UDD36HCS
#178UDD2CT
#178UDD2CTS
#178UDD3CT
#178UDD3CTS
#178UDD4CT
#178UDD4CTS
#178UDD2CTS
#178UDD72HC
#178UDD72HCS
#178UDD378
#178UDD378S
Note:
Base Models:
Beer Dispensers
178UDD2HC
( Variations listed on page 3 )

2
User Manual
www.AvantcoRefrigeration.com
Beer Dispensers
Table of Contents
Model Variations................................................................................................................. 3
Warnings............................................................................................................................... 4
Installation and Operation ............................................................................................... 5
Cabinet Location Guidelines........................................................................................... 6
Electrical ............................................................................................................................... 7
Start-up ................................................................................................................................. 8
Adjusting the Temperature.............................................................................................. 9
Temperature, Pressure, and Tapping............................................................................ 10
Storage and Handling....................................................................................................... 11
Knockout CO Installation................................................................................................ 11
Cleaning Bar System......................................................................................................... 12
Changing CO Cylinder.................................................................................................... 13
Pressure Adjustment on CO Regulator ...................................................................... 13
Safety / Warning ................................................................................................................. 14
Operation / Maintenance................................................................................................. 14
Stainless Steel Care & Instructions................................................................................ 16
Troubleshooting ................................................................................................................ 17
Draft Beer Troubleshooting............................................................................................. 18
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.

3
User Manual
www.AvantcoRefrigeration.com
Beer Dispensers
Base Model Optional Models
178UDD1HC 178UDD12, 178UDD13,
178UDD14
178UDD2HC 178UDD23, 178UDD24
178UDD3HC 178UDD36, 178UDD38
178UDD4HC 178UDD46, 178UDD48
178UDD36HC 178UDD363, 178UDD364
178UDD48HC 178UDD483, 178UDD484
178UDD60HC 178UDD606, 178UDD608
178UDD72HC 178UDD726, 178UDD728
178UDD378 178UDD3786, 178UDD3788
178UDD2CT 178UDD2CT3, 178UDD2CT4
178UDD3CT 178UDD3CT6, 178UDD3CT8
178UDD4CT 178UDD4CT6, 178UDD4CT8
Base Model Optional Models
178UDD1HCS 178UDD1S2, 178UDD1S3,
178UDD1S4
178UDD2HCS 178UDD2S3, 178UDD2S4
178UDD3HCS 178UDD3S6, 178UDD3S8
178UDD4HCS 178UDD4S6, 178UDD4S8
178UDD36HCS 178UDD36S3, 178UDD36S4
178UDD48HCS 178UDD48S3, 178UDD48S4
178UDD60HCS 178UDD60S6, 178UDD60S8
178UDD72HCS 178UDD72S6, 178UDD72S8
178UDD378S 178UDD378S6, 178UDD378S8
178UDD2CTS 178UDD2CTS3, 178UDD2CTS4
178UDD3CTS 178UDD3CTS6, 178UDD3CTS8
178UDD4CTS 178UDD4CTS6, 178UDD4CTS8
Model Variations

4
User Manual
www.AvantcoRefrigeration.com
Beer Dispensers
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

5
User Manual
www.AvantcoRefrigeration.com
Beer Dispensers
Please read this manual thoroughly prior to equipment setup, operation, and maintenance.
This unit is intended for use in a temperature-controlled environment less than 75 degrees
Fahrenheit and 60% relative humidity.
Uncrating
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.
1. Remove the outer packaging. All of the packaging (including cardboard, bubbles and plastic wrap)
should be removed from the unit.
2. Move the unit as close to the final location as possible before removing the wooden pallet.
3. Use a screwdriver to remove the screws from the L-bracket connecting the unit to the wooden pallet.
4. Remove pallet by unscrewing all base rail anchor brackets. Place pallet to the side.
5. Carefully place the cabinet upright.
CAUTION – When lifting unit do not use the countertop as a lifting point.
IMPORTANT – Please read below before installation:
• 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 sit/stand inside the unit.
• Please read through the manual in its entirety.
• This unit is designed to perform in a temperature-controlled environment at 60% relative humidity. The unit
should be located away from doors, air ducts, and fans that could disrupt airflow and negatively impact
performance.
• This unit is designed to dispense beers only. Using this unit for other beverages such as cider, wine, and
coee may damage internal parts and have adverse eects on the product being dispensed. Malfunction
due to using this unit for beverages other than beer is not covered under warranty.
Installation and Operation

6
User Manual
www.AvantcoRefrigeration.com
Beer Dispensers
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.
- Keep the cooler stable to avoid vibration and noise.
• Install the unit in an indoor, well-ventilated area.
- For best performance, please maintain clearance of 3” on the back of the unit.
- Do not use outdoors. For indoor use only.
- Avoid direct sunlight.
- Unit should be placed far from any heating source to avoid decrease of refrigeration eciency.
• Avoid installation in a high humidity and/or dusty area.
- Humidity above 60% can cause the unit to rust, to collect condensation, and may decrease eciency.
- Dust collected on condenser coil will cause 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.
• For optimal performance, 3” of clearance is required around all louvered or vented panels, to allow for
proper air flow.
- Component failure due to improper installation is not covered under the warranty.
Shelf Installation
Shelves are included with the beer dispensers to provide the option for storage.
1. Hook shelf clips onto hanger.
2. Place shelves on shelf clips making sure all corners are seated properly.

7
User Manual
www.AvantcoRefrigeration.com
Beer Dispensers
• 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 its 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.
1. Connect beer line connector to keg coupler.
2. Place rubber washer over draft arm mounting holes
in cabinet.
3. Put beer line connector down through hole.
4. Secure draft arm with four screws.
5. Insert air hose in draft arm, being careful not to
disturb insulation.
6. Remove top cover of draft arm and attach air hose
clip to the insulating sleeve at the top of the draft arm.
This will assure that the hose remains in the proper
place at all times, which will keep the beer faucet cold.
7. Replace top cover.
8. Screw the handle onto the beer faucet.
Electrical
Installing Draft Tower
8
2
7
1
3 4
5
6

8
User Manual
www.AvantcoRefrigeration.com
Beer Dispensers
Drain Instructions:
On direct draws, the drain is located at the front of the cabinet. (UDD1 & UDD1S drain into a bottle located
inside the unit) To plumb in the drain, connect ½” PVC pipe to the barbed fitting supplied with the unit. If
you would prefer to drain the beer inside the unit (for mobility or where a drain can’t be found):
• Use a screwdriver to remove the drain bracket.
• Pull the drain hose so that it is inside the unit.
• Attach a bottle to the drain hose inside the unit.
• Plug the created hole at the bottom of the unit.
RECOMMENDATION:
Before loading product, we recommend you run your Avantco unit empty for 2-3 days. This allows
you to be sure the electrical wiring and installation are correct and no shipping damage has
occurred. Remember, the Ready Kitchen Warranty does not cover product loss!
• Dial temperature controls set at the no. 4 position gives refrigerators an approximate temperature of
35°F. Digital temperature controls are programmed to operate between 33°F and 40°F with no
adjustments. Allow unit to function several hours, completely cooling the cabinet before changing the
control settings.
• Excessive tampering with the control could lead to service diculties. Should it ever become necessary
to replace temperature control, be sure it is ordered from your Avantco dealer or recommended
service agent.
• Good air flow in your unit is critical. Be careful to load product so that it neither presses against the back
wall, nor comes within four inches of the evaporator housing. Refrigerated air o the coil must circulate
down the back wall.
Start-up

9
User Manual
www.AvantcoRefrigeration.com
Beer Dispensers
set
mute
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 +7 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.
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 the Temperature
Temperature Ranges from ( 7 ) Coldest to ( 1 ) Warmest
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.

10
User Manual
www.AvantcoRefrigeration.com
Beer Dispensers
Correct temperature is a key factor to consider when storing and dispensing draft beer. Too cool or too warm
may cause flavor loss and dispensing problems.
Tips on Controlling Temperature
• Keep a thermometer handy.
• Monitor temperature of draft both inside your cooler and at the tap.
• Keep the cooler door(s) closed as much as possible to avoid temperature fluctuation.
• Regular maintenance will help identify potential problems before they become definite problems.
Dispensing pressures dier according to:
• The type of draft dispensing system
• The length of draft dispensing line
• The actual draft product
• The temperature of the draft product
• The pressurizing agent: Compressed air, CO2, or specially blended gasses.
Tips on Maintaining Correct Temperature
• Research which pressurizing agent works best with your product and why.
• Monitor your regulators to ensure applied pressure remains constant.
• Keep equipment in good repair.
• Do not agitate the kegs unnecessarily.
• If excessive agitation occurs, allow kegs to settle for 1-2 hours before tapping.
• Prior to tapping the keg, ensure that all beer faucets in the serving location are in the o position.
• Completely remove the dust cover (identification cap) from the keg.
Temperature
Pressure
Tapping