ABS PH-ABT-UCBI-0420 - User Manual

Questions and Answers

K
kelly50Aug 16, 2025
Why my ABS PH-ABT-UCBI-0420 Freezer unit does not run?
- C
  Christopher Bender DDSAug 16, 2025
  If your ABS Freezer unit isn't running, it could be due to several electrical issues. First, verify that the electrical circuit is providing 110-120V 60Hz. Check your breaker to ensure it hasn't tripped, and that no fuses are blown. Also, ensure the power cord is securely plugged in and that the outlet is functional. Lastly, confirm that the unit isn't connected to a Ground Fault Circuit Interrupter (GFCI) outlet.
M
Maria Huang MDAug 19, 2025
What to do if moisture collects inside ABS PH-ABT-UCBI-0420 Freezer?
- G
  Gregory HartAug 19, 2025
  If you notice moisture collecting inside your ABS Freezer, several factors could be at play. Start by checking the door gasket for any debris, cracks, or obstructions that might prevent a proper seal. Also, consider whether the freezer is positioned near a doorway or under an air conditioning vent, and if so, relocate the unit or redirect the vent. Minimize how often and how long the door is opened, and ensure there is a water trap (U-shaped loop) in the drain tube near the compressor.
C
Carol MitchellAug 22, 2025
Why ABS PH-ABT-UCBI-0420 unit does not maintain at the proper temperature?
- M
  michellemarshallAug 22, 2025
  If your ABS Freezer isn't maintaining the correct temperature, consider these factors: Ensure the room temperature is between 65°F and 85°F. Make sure the door is closing properly and is not left ajar. Avoid overloading the unit with too many items. Properly arrange the products evenly on each shelf to ensure air circulation, and do not push items against the rear or side walls. If frost or ice is blocking the evaporator, unplug the unit, remove the products and allow it to defrost. If the problem persists after these steps, call for service.
A
Andrea MartinezAug 26, 2025
Why ABS Freezer appliance runs too long?
- N
  Nancy FosterAug 26, 2025
  If your ABS Freezer appliance runs for extended periods, it could be due to frequent door openings, a control set too cold, or a high room temperature, which forces the unit to work harder to maintain its cool temperature.
L
Lance KempAug 28, 2025
Why moisture collects on outside surface of ABS PH-ABT-UCBI-0420 Freezer?
- A
  Angela Carroll MDAug 28, 2025
  If you notice moisture collecting on the outside surface of your ABS Freezer, this is often due to hot, humid weather, which increases condensation. As the humidity decreases, this moisture should disappear.
K
Kevin JonesAug 31, 2025
What to do if ABS Freezer display shows “HH” and the compressor does not run?
- R
  Robert CollinsAug 31, 2025
  If the display on your ABS Freezer shows “HH” and the compressor isn't running, it indicates that the ambient temperature is above 40C/104F. You should stop using the unit immediately.
M
maria79Sep 3, 2025
Why temperature of external wall surface of ABS PH-ABT-UCBI-0420 Freezer is warm?
- R
  Ryan MacdonaldSep 4, 2025
  It's normal for the external wall surface of your ABS Freezer to feel warm. The exterior walls can be as much as 30 degrees warmer than room temperature because of the embedded condenser coils. This is typical when the unit is operating.
C
Charles LoweSep 6, 2025
What to do if ABS PH-ABT-UCBI-0420 display shows “LL” and the compressor does not run?
- G
  gjonesSep 6, 2025
  If the display on your ABS Freezer shows “LL” and the compressor isn't running, it indicates that the ambient temperature is below -40C/-40F. You should stop using the unit immediately.
R
Regina HensleySep 9, 2025
What to do if ABS Freezer display shows “SO” and the compressor does not run?
- A
  angelasimpsonSep 9, 2025
  If the display on your ABS Freezer shows “SO” and the compressor does not run, it indicates that the temperature sensor is open. Call for service.
G
gallegoskathleenSep 12, 2025
What to do if ABS PH-ABT-UCBI-0420 Freezer display shows “SC” and the compressor does not run?
- T
  torresjosephSep 12, 2025
  If the display on your ABS Freezer shows “SC” and the compressor does not run, it means the temperature sensor is shorted. Call for service.

Summary

Installation Instructions

Uncrating

Move refrigerator close to final location before unpacking. Remove carton and styrofoam strips. Position near power outlet.

Leveling

Level unit using screw-type adjustable legs on front corners. Turn clockwise to lower, counterclockwise to raise. Slight front-to-back tilt is acceptable.

Power Source

Use a dedicated 110-120V 60Hz circuit, protected by a 20 amp time-delay fuse or breaker. Use 3-prong grounded outlet; do not use extension cords or adapters.

Starting and Freezer Operation

Freezer Operation Tips

Ensure proper airflow, do not overload, minimize door openings, and load in stages for best results and temperature stabilization.

Electronic Temperature Control

Description and Functions

Digital microprocessor control monitors temperature, operates compressor, and includes LED alarm and audible beeper with a 5-minute delay.

Operating Mode

Displays current interior temperature, allows viewing set point, and records warmest/coldest temperatures since last reset.

Programming Mode

Access to functions like locking controls, changing Celsius/Fahrenheit, and adjusting alarm set points. User caution advised.

Maintenance and Cleaning

Cleaning Procedures

Guidelines for cleaning interior, glass doors, gaskets, shelves, and exterior using specific agents and precautions.

Stainless Steel Care

Instructions for cleaning stainless steel surfaces using non-abrasive tools, specific cleaners, and proper scrubbing techniques.

Product Warranty Information

Horizon Scientific Product Warranty

Covers two-year parts and labor, with an additional three-year compressor warranty for material and workmanship defects.

Warranty Exclusions and Claims

Details non-transferability, exclusions like misuse/accident, and procedures for making warranty claims.

This document serves as the Owner's Guide for the PREMIERE PHARMACY / VACCINE UNDERCOUNTER BUILT IN FREEZERS, specifically models PH-ABT-UCBI-0420 and PH-ABT-UCBI-0420SS, manufactured by Horizon Scientific. It provides comprehensive instructions for operation, care, and maintenance to ensure optimal and efficient performance of the appliance.

Function Description

The PREMIERE PHARMACY / VACCINE UNDERCOUNTER BUILT IN FREEZERS are designed for the precise storage of pharmacy and vaccine products, requiring stable and controlled low-temperature environments. These units are equipped with an electronic temperature control system that continuously monitors and regulates the internal temperature to maintain a desired set point. When the internal temperature rises above the upper limit, the controller activates the compressor to cool the unit until the lower temperature set point is reached, at which point the compressor turns off. This cycling ensures consistent temperature control critical for the integrity of stored vaccines and pharmaceuticals. The units are built for undercounter installation, making them suitable for various clinical and laboratory settings where space optimization is important.

Important Technical Specifications

Models: PH-ABT-UCBI-0420, PH-ABT-UCBI-0420SS
Power Source: The supply circuit must conform to all National and Local Electrical Codes. The cabinet's Serial-Data plate specifies voltage, cycle, phase, and amp requirements. Voltage should not vary more than 5% from serial plate ratings. A separate 20 AMP DELAY-TYPE FUSE OR CIRCUIT BREAKER protected circuit is recommended. The unit requires a 3-prong grounded outlet; extension cords and adapter plugs are not to be used, and no prong should be removed or bypassed.
Temperature Control: Digital microprocessor-based electronic temperature control, indication, and alarm system.
Alarm System: Features a red LED for visual alarm indication and a beeper for audible alarms. Includes a preprogrammed 5-minute delay from set point attainment before an alarm is declared, preventing spurious alarms from events like door openings.
Temperature Display: Normally displays current interior temperature in degrees Celsius. Can be switched to Fahrenheit.
Temperature Range: The unit is factory-preset to provide desired air and product temperatures. The controller manages compressor cycling based on a set point and a differential (Hysteresis) setting. For example, if the SET point is 3°C and Hysteresis is 3, the compressor will cycle between 3°C and 6°C.
Load Capacity: Maximum suggested load is about 75% of the chamber volume, distributed evenly.
Clearance: Requires 2-3 inches of free space along the back and sides for proper airflow. When loading the top shelf, at least 4 inches of clearance around the evaporator fan(s) (if installed) is necessary.
Operating Environment: Recommended room temperature for the refrigerator or freezer is between 65°F to 85°F (18°C to 29°C). Operating outside this range may affect the unit's ability to maintain proper internal temperatures. The unit should not be used if ambient temperature is above 40°C/104°F or below -40°C/-40°F.
Warranty: Two-Year Parts and Labor warranty, and an additional Three-Year Compressor Parts warranty (totaling 5 years for compressor parts) from the date of shipment.

Usage Features

Installation: Units should be moved as close as possible to their final location before unpacking. Leveling is achieved via screw-type adjustable legs on the front corners, allowing for a slight tilt from front to back, which is acceptable and recommended.
Initial Startup: After leveling, plug the unit into a proper electrical outlet. Allow the cabinet to operate for a minimum of four hours, or until it cycles normally, before placing products inside. This allows the system to cool down and stabilize.
Loading: When introducing products, especially large quantities, do so in stages, allowing several hours between stages for temperature stabilization. Ensure proper airflow by leaving 2-3 inches of space along the back and sides, and at least 4 inches around the evaporator fan on the top shelf. Avoid overloading the unit.
Door Management: Minimize door opening time to prevent cold air loss and warm, moist air entry, which can lead to condensation and frost buildup.
Temperature Monitoring: The electronic control displays the current interior temperature. Users can view the compressor off set point by pressing the SET button. The control also records the warmest and coldest temperatures since the last reset, accessible via the up and down arrow keys.
Temperature Adjustment (Advanced): While factory-preset, the temperature set points can be adjusted. This requires pressing and holding the SET button to access the compressor off set point, and adjusting the differential (Hysteresis) to set the compressor on set point. It is strongly recommended to contact the manufacturer's Technical Support Department before making any temperature adjustments.
Unit Lockout: The control keys can be locked to prevent inadvertent changes by simultaneously pressing and holding the up and down arrows until "POF" is displayed. To unlock, repeat the action until "Pon" is displayed.
Temperature Scale: The display can be switched between Celsius and Fahrenheit scales through the programming mode.
Alarm Set Points: High (ALU) and Low (ALL) alarm set points can be adjusted in the programming mode, also with a strong recommendation to consult technical support.

Maintenance Features

Cleaning: The units require periodic cleaning for efficient operation.
- Interior and Door Liners: Clean with a solution of 2 tablespoons baking soda in 1 quart of warm water. Wring out excess water from sponges/cloths before cleaning around electrical parts.
- Glass Doors: Clean with mild detergent and water on a soft cloth/sponge, rinse, and wipe dry.
- Door Gaskets: Wipe gaskets and seating surfaces with a clean soft cloth.
- Shelves: Clean with soap and water; do not wash in a dishwasher.
- Exterior and Handles: Use soap and water or non-abrasive glass cleaner. Avoid commercial household cleaners, ammonia, or alcohol. Use a soft cloth for smooth handles; do not use a dry cloth.
Stainless Steel Care:
- Tools: Use non-abrasive tools like soft cloths or plastic scouring pads. If using stainless steel pads, scrub in the direction of polishing lines.
- Cleaning Direction: Always scrub in the direction of visible polishing lines or "grain." If no grain is visible, use a soft cloth or plastic scouring pad.
- Cleaners: Use alkaline, alkaline chlorinated, or non-chloride containing cleaners. Avoid cleaners with chlorides or quaternary salts, as they can cause pitting and rusting.
- Water Quality: Softening hard water can reduce deposits. Consider filters to remove corrosive elements.
- Rinsing: Rinse thoroughly after using chlorinated cleaners and wipe dry immediately. Allow to air dry to maintain the stainless steel's passivity film. Never use hydrochloric acid (muriatic acid).
Defrosting: Defrost the freezer when ¼ to ½ inch of frost accumulates or if the unit fails to maintain proper temperature.
- Procedure: Disconnect power. Remove products and leave the door open. Place towels in the bottom to catch frost. For soft frost, use a plastic scraper. For glazed/hard frost, place deep pans of hot water inside, close the door for 15 minutes, and repeat as needed.
- Post-Defrost: Remove all towels, tools, and pans. Clean the interior and exterior. Plug the unit back in and restore to service.
Troubleshooting: A quick troubleshooting guide is provided for common issues like the unit not running, not maintaining temperature, running too long, warm external walls, or compressor noises. It also addresses display error codes ("SO," "SC," "HH," "LL") and moisture issues, particularly during summer.
Technical Support: Before calling, have the unit's model and serial number (found on the interior left or right upper wall) and a problem description ready.

ABS PH-ABT-UCBI-0420 Specifications

General

Brand	ABS
Model	PH-ABT-UCBI-0420
Category	Freezer
Language	English