WILPREP KR-23BG1 Single Glass Door Refrigerator User Manual

: June 17, 2024
: WILPREP

Table of Contents

Safety Information
Specifications
Installation
Control Panel
Operation
Adjustment
Maintenance
Troubleshooting
Disposal
Contact Us
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WILPREP KR-23BG1 Single Glass Door Refrigerator User Manual

Safety Information

Warning!

ONLY use this device for its intended purpose, indoor storage and display of nonhazardous sealed beverages or food. Operators should read this manual carefully before use, keep it for future reference, and provide it with the device if it is ever given or sold to a third party. Failure to do so may lead to electric shock, fire, serious property damage, or severe personal injury.
DO NOT allow small children or other persons whose mental or physical impairments preclude safe use to handle this device without supervision. Do not leave its wheels unlocked while on public display.
ONLY use this device with stable, compatible, and well-grounded power supplies. Do not overload this device’s circuit; only use it with extension cords, power strips, etc. able to handle its full expected current. Fully insert the plug into its socket and remove it using the plug itself, not its cord. Be careful not to crimp or damage the power cord and to keep it away from any walkway.
ONLY install this device in a sturdy location able to easily bear its fully-loaded weight. Never place heavy items on top of it. Be sure the shelves are well attached before use, do not exceed the shelves’ weight capacity, and do not throw or drop heavy items onto the shelves as the force created might exceed the shelves’ capacity.
ONLY install this device in a level location. Even during transport, do not tilt more than 45°.
ONLY use and store this device in dry indoor locations well protected from the elements and excessive humidity. If use in a very humid location is completely unavoidable, install an electrical leakage circuit breaker (ELCB) on this device’s line before use.
NEVER allow any electronic component to become wet. If any accidentally does becomewet, disconnect the device from power until all components are completely dry. Never place items with open water on, in, or near this device.
In humid environments, DO NOT place power cords on the ground behind or beside this device. When used properly in its recommended environment, this device’s condensation and defrost runoff should collect and evaporate without problem but it is still recommended to avoid placing power cords nearby as a general precaution.
ONLY open and close each door using its handle. Never hang or allow others to hang from this device. Never apply excessive force against its window(s) or allow others to do so.
NEVER obstruct or insert anything into this device’s air inlets and outlets. Provide at least 4 inches (10 cm) of clearance between this device’s vents and any wall or other obstruction.
For best results, use this device in its recommended climatic conditions away from direct sunlight. Allow hot items to cool to room temperature before placing them within.
This device uses flammable refrigerant under pressure and uses flammable insulation materials. NEVER heat this device, never use other devices to defrost it, never place flammable or explosive materials within it or nearby, and never use flammable aerosols within it or nearby. If you ever notice substandard cooling or detect a refrigerant leak, disconnect this device from power, ventilate the area, and have a trained technician service it.
NEVER drill into or otherwise poke holes into this device.
NEVER clean or repair this device while it is still connected to its power source. Unplug it, turn off any intermediate surge protector, or turn off its circuit at the fuse box.
DO NOT use this device if any wear, damage, or malfunction is detected. Tighten, repair, or replace loose, worn, or damaged components before further use. Fully replace any worn or damaged power cords. Use professional technicians. Never attempt to service or modify any electrical or refrigerant component without specialized electrical or HVAC training.

Specifications

Model	KR-23BG1	KR-49BG1
Input Power	Voltage	110–120 V
Frequency	60 Hz	60 Hz
Current	1.6 A	2.5 A
Cooling Output Power	180 W	253 W
Max. Noise Level	60 dB	60 dB
Climatic Class	N	N
Target Temperature	32–50°F	0–10°C
Ambient Temperature	60–90°F	16–32°C
Effective Volume	18.7 cu. ft.	529 L
Width	26.8 in.	68 cm
Depth	32.3 in.	82 cm
Height	81.9 in.	208 cm
Doors	1	2
Shelves	Number	5
Capacity (ea.)	88 lb.	40 kg
Power Cord Length (approx. )	7 ft. 2 in.	2.2 m
Net Weight	304.2 lb.	138 kg
Refrigerant	Type	R-290
Charge	1.94 oz.	50 g
Insulation Material	Cyclopentane	Cyclopentane

Installation

Prepare two locations for your new display refrigerator, one for usual service and another for initial setup and periodic maintenance. Both should be level and firm, able to easily bear the fully loaded weight of the device. Both should have the necessary amount of clearance for the device’s ventilation and a well-grounded circuit that can be used by the device alone.
Open and unpack the device. Keep any children and pets away from the packing materials.
Open the doors to the display area. Allow 12 hours in the initial location to fully ventilate the refrigerator and to provide time for the refrigerant to fully settle.
Your device was cleaned and checked before leaving the factory, but look it over before use and clean anything that may have become dirty during shipment. If you will store any loosely sealed items in the refrigerator, clean and disinfect all surfaces out of an abundance of caution.
Unlock the adjustable wheels and roll the refrigerator to its usual location. Use 2 or more people to move the refrigerator. Avoid tilting it more than 45° as you go. Once it’s in place, lock the wheels back down. Check that the shelves are where you will need them to be and that they’re firmly supported.
Connect the power cord and make any adjustments you will need to the refrigerator’s default cooling settings. For best results, allow the machine to run for 1 hour before starting to fill it with items.

Control Panel

Power Switch

Display

The digital display normally shows the current shelf temperature. For the condenser, fan, and defroster, each indicator light will shine steadily when they are active and flash when they are on standby and ready to activate after a short time.

Operation

Cooling

The default setting of your display refrigerator is to wait 2 minutes after startup and then begin activating the compressor, fan, and other components in a staggered fashion to minimize the overlap of inrush current. It then automatically cools its shelves to about 33°F (1°C), rests for some time, and then begins cooling again if the temperature has risen. It will also begin cooling once the shelves are detected to be above 39°F (4°C). This higher value is set by the hysteresis parameter, reducing wear on the compressor. It rests once the shelves reach their target temperature again. The fan blows continuously to cool the shelves.

The pauses protect the compressor and minimize wear from excessively fast cycles of activation and deactivation to give you the longest service life possible. For similar reasons, for best results, cool hot items to room temperature before placing them in the refrigerator.

Defrosting

Every 4 hours of continuous use, your refrigerator will rest for 30 minutes to defrost its evaporator. The temperature display will read the temperature last detected, and the defrosting indicator will shine steadily. while this occurs. The refrigerator will stop defrosting and begin cooling after the shelf’s temperature reaches 53.6°F (12°C).

You can also activate defrosting manually by holding down ▼ until the defrost indicator appears and the display reads “dEF”. This will stop the compressor, reset the normal defrost countdown, and begin defrosting the evaporator until either the set defrosting period is over or until the shelf
temperature reaches 53.6°F.

Hold down ▼ while the machine is defrosting to immediately end it. The system will resume cooling 5 minutes after that.

Customization

Some details of the system’s automatic operation are customizable but do not adjust its alarms and safety features without professional assistance. Even in warm climates, do not adjust its settings so that defrosts less often than at least 30 minutes every 4 hours.

All such adjustments to the parameters are made at the user’s own risk and may void any warranty stated or implied.

Stocking

As you stock items, be careful not to overload the shelves by weight or size. Items that hang over the edges can easily fall and the device relies on the open areas for its designed cooling. In particular, be careful not to block the cooling system’s inlet or outlet.

If you remove items at the end of the day to turn the refrigerator off, allow some time for it to cool down before adding items in the morning. In the recommended climatic conditions, it should take about 45 minutes for it to cool from 80° to 40°F (29° to 5°C).

Adjustment

Temperature Adjustment

By default, this refrigerator cools its shelves to 33°F (1°C). To change this target temperature to any value between 32° and 50°F, hold Set until the display begins flashing. Use ▲ and ▼ to set the new temperature. Press Set to save your changes.

Parameter Adjustment

Hold Set until “PS” is displayed. Press ▲ or ▼ to scroll through the parameter menus. Press Set to see any user parameter’s current value. Press ▲ or ▼ to change to value as needed. Press Set again to save your changes and return to the parameter menus or hold Set to save your changes and exit to the main display. To exit without saving any changes, wait about a minute for the display to reset to the current shelf temperature again.

The parameter menus cycle from /4 to /C3 for the sensor parameters, then rd for hysteresis, then dl to d/ for the defrost parameters, then AL and AH for the alarm parameters, then F1 and Fd for circulation fan parameters, and then H5 for display control before starting again.

The adjustment of parameters other than the target temperature may cause abnormal function and are made at the user’s risk.

Probe Parameters

/4 controls the main display. When it is set to 1, the default display is the reading from the shelf temperature sensor. When it is set to 2, reading from the defrost sensor near the evaporator will be shown instead. When it is set to 3, the condenser sensor reading is shown. /C1, /C2, and /C3 are calibrated separately for each machine at the factory to ensure proper functioning and should not normally need adjustment.

Control Parameters

Code| Parameter| Default Value
rd| Hysteresis| 6°F

rd controls the smoothing involved in reactivating the compressor. Values lower than 6°F may
be necessary for some products but will involve increased wear and a shorter operating life.

Defrost Parameters

dl, dt, and dp set the defrost schedule. They can be adjusted in some areas and seasons but do not set either to less than 30 minutes every 4 hours, since the evaporator can become much colder than the ambient temperature. dt can be adjusted as needed for your products. It normally doesn’t need adjusting. dd may require adjustment depending on the humidity of the area. Provide enough time that the cabinet can fully drain after defrosting. d8 sets the amount of time the alarm allows the cabinet to cool before reactivating itself. It should not need to be set longer than 1 hour. d/ is disabled.

The alarm parameters should never be adjusted except in consultation with Customer Service and a trained electrician or HVAC professional.

Circulation Fan Parameters

Fd can be used to avoid restarting the fans too soon in situations where the extra power usage might trip a circuit breaker as the compressor works to recool the shelves. It should usually be unnecessary owing to the energy efficiency of these models.

H5 is used to mark when adjustment of the default settings has occurred. It should not be modified to assist with troubleshooting.

Maintenance

Always fully disconnect your display refrigerator from power before any cleaning, draining, repair, or other maintenance.
Dry and clean this device with a soft dry cloth as needed. If additional cleaners are necessary, use a wetted cloth and mild detergent. Rinse soap and residue with a second wetted cloth. Never use alcohol or caustic cleaners. Never spray, splash, or otherwise apply water directly onto the refrigerator and never allow any electronic component to become wet. If any accidentally does become wet, disconnect the device from power and wait until it is fully dry before attempting to resume use.
Always provide adequate ventilation for your device and ensure the parameter settings allow enough time for the compressor to fully defrost as it works. For best results, keep the door(s) closed as much as possible, particularly overnight, to minimize wear and prolong your device’s service life.
Under normal use in its recommended climate, this device’s tray will allow condensation from the evaporator to fully evaporate without any additional maintenance. In high-humidity areas and seasons, however, the tray may require draining to avoid overflow. For this reason, never leave other electrical cords lying on surfaces next to this device.
Periodically check that this device’s inlet and outlet remain unobstructed and that no component shows any looseness, wear, or damage. Tighten, repair, or replace any problematic part before further use. Always fully replace any worn or damaged power cords. Never adjust, repair, or replace this device’s refrigerated or electronic components without specialized technical training.
If this device will not be used for an extended period, clean it, open its doors, disconnect it from power, and store it in a cool dry area away from direct sunlight and inaccessible to children.

Troubleshooting

A sound of gurgling water during use is normal. If the compressor shuts down or causes its circuit to blow, 1st, wait five minutes before attempting to restart it. 2nd, during that time, check that no other devices are on the same circuit and that all inlets and outlets are clear. 3rd, if the problem continues, run a full defrost cycle to clear any frost on the evaporator. 4th, use a time delay fuse to allow the compressor’s higher initial load. Other problems will display an error code on the main display:

Code	Meaning	Usual Solutions
E0	Cabinet Temp. Sensor Error	Have a technician examine and repair the

wiring or replace the cabinet temperature sensor.
E1| Defrost Temp. Sensor Error| Have a trained technician examine and repair the wiring or replace the defrost temperature sensor.
Lo| Low Cabinet Temperature| Increase the cabinet temperature above 14°F.
Have a trained technician repair the wiring or replace the cabinet temperature sensor.
HI| High Cabinet Temperature| Reduce the cabinet temperature.
Have a trained technician repair the wiring or replace the cabinet temperature sensor.
EE| Compressor Setting Error| Work with Customer Service to check and correct the hidden compressor parameters.
Have a trained technician repair the wiring or replace the compressor or the refrigerator’s controller.
EF| Control Parameters| Work with Customer Service to check and correct the hidden control parameters.
Have a trained technician repair the wiring or replace the refrigerator’s controller

Disposal

Electrical products should not be disposed of with household products. In the EU and UK, according to the European Directive 2012/19/EU for the disposal of electrical and electronic equipment and its implementation in national laws, used electrical products must be collected separately and disposed of at the collection points provided for this purpose. Locations in Australia, Canada, and the United States may have similar regulations. Contact your local authorities or dealer for disposal and recycling advice.