Liebherr freezer LGT 2325 MediLine Manual

The Liebherr LGT 2325 MediLine is a high-performance medical-grade freezer designed for reliable storage of temperature-sensitive medical supplies, pharmaceuticals, and laboratory samples. It features precise temperature control, an advanced alarm system, digital temperature display, interior lighting, lockable door, and energy-efficient operation. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Temperature Management 7. Alarm System 8. Maintenance & Cleaning 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: Digital temperature controller, interior LED lighting, lockable door with key, temperature alarm system, adjustable shelves, and casters for mobility.

Feature	Description
Digital temperature display	Shows current interior temperature in °C or °F
Temperature alarm	Audible and visual alarm for temperature deviations
Interior LED lighting	Energy-efficient illumination of storage compartment
Lockable door	Security key lock to prevent unauthorized access
Adjustable shelves	Flexible storage configuration for various container sizes
Casters	Four wheels for easy relocation (two with brakes)
Power cord	Detachable power cord with grounded plug
Temperature range	Adjustable from -25°C to -15°C (-13°F to 5°F)
Door open alarm	Alerts when door remains open beyond set time
Battery backup	Optional backup for alarm system during power failure

Installation

Unpack and inspect contents. Position in appropriate location.

Choose location: Place on level, solid floor away from heat sources and direct sunlight.
Clearance: Allow minimum 10cm (4 inches) clearance on all sides for proper ventilation.
Level unit: Adjust leveling feet to ensure door closes properly and seals tightly.
Connect power: Plug into dedicated grounded electrical outlet.

WARNING! Unit is heavy; use proper lifting techniques or equipment. Ensure adequate ventilation space.

First-Time Setup

Power on freezer; allow to stabilize before loading.

Initial cooling: Turn on and allow to run empty for 2-4 hours to reach set temperature.
Set temperature: Use digital controller to set desired storage temperature.
Configure alarm: Set temperature alarm thresholds and door open alarm delay.
Load items: Organize contents efficiently, leaving space for air circulation.

CAUTION! Do not overload shelves. Distribute weight evenly. Allow air circulation between items.

Specifications

Model: LGT 2325 MediLine
Total Capacity: 232 liters (8.2 cubic feet)
Temperature Range: -25°C to -15°C (-13°F to 5°F)
Power Supply: 115V AC, 60Hz, 1.5A
Energy Consumption: Approximately 280 kWh/year
Refrigerant: R600a (isobutane)
Dimensions (HxWxD): 85 x 60 x 67 cm (33.5" x 23.6" x 26.4")
Weight: 55 kg (121 lbs)
Climate Class: N (operates at ambient temperatures of +16°C to +32°C)
Noise Level: ≤ 42 dB(A)

Controls and Settings

Access settings via digital control panel on front of unit.

Control Panel: Temperature display, SET button, UP/DOWN buttons, ALARM button, LIGHT button.

Temperature Setting: Press SET, use UP/DOWN to adjust, press SET to confirm. Alarm Settings: Press ALARM to view/set thresholds. Temperature Display: Shows current temperature; press buttons to toggle between °C/°F. Interior Light: Press LIGHT to turn on/off interior illumination. Door Lock: Use provided key to lock/unlock door for security.

Temperature Management

Monitor and maintain consistent storage temperature.

Regular monitoring: Check digital display daily; record temperatures as required.
Temperature mapping: For validation, place data loggers at various locations.
Loading procedure: Pre-cool items when possible; load quickly to minimize temperature rise.
Defrost cycle: Automatic defrost maintains efficiency; ensure drain is clear.

Tip: Keep door openings brief and infrequent to maintain stable temperature.

Alarm System

Audible and visual alarms alert to temperature deviations or door issues.

Temperature alarm: Sounds when temperature exceeds set thresholds (high/low).
Door alarm: Activates if door remains open longer than set delay (adjustable 1-10 minutes).
Power failure alarm: Optional battery backup maintains alarm during outages.
Alarm silence: Press ALARM button to temporarily silence audible alarm (visual remains).
Alarm reset: Correct condition; alarm resets automatically when parameters return to normal.

WARNING! Test alarm system weekly. Ensure staff knows alarm sounds and response procedures.

Maintenance & Cleaning

Regular maintenance ensures optimal performance and longevity.

Exterior cleaning: Unplug unit. Wipe with damp cloth and mild detergent. Dry thoroughly.
Interior cleaning: Remove all contents. Defrost completely. Clean with baking soda solution (1 tbsp per quart of water). Rinse and dry.
Gasket cleaning: Clean door gasket with mild soapy water; check for proper seal.
Condenser cleaning: Vacuum condenser coils every 3-6 months to maintain efficiency.
Drain check: Ensure drain hole at back of interior is clear of obstruction.

CAUTION! Always unplug before cleaning. Never use abrasive cleaners or sharp tools on interior.

Regulatory Information

Medical Device: Complies with relevant medical device regulations for storage of temperature-sensitive medical products. Electrical Safety: Certified to UL/CSA standards. Environmental: Contains R600a refrigerant (flammable); dispose of properly. Copyright © Liebherr; trademarks of Liebherr-International AG. For support, visit www.liebherr.com or contact Liebherr customer service.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Unit not cooling	Power issue/thermostat	Check power connection; ensure unit is plugged in; verify circuit breaker.
Temperature too high	Door seal/overloading	Check door seal; reduce door openings; ensure proper air circulation.
Alarm sounding	Temperature deviation/door open	Check temperature; close door properly; check alarm settings.
Excessive frost	Door seal/humidity	Check door gasket; ensure proper closure; defrost completely.
Unusual noise	Leveling/component	Ensure unit is level; check for loose parts; clean condenser.
Light not working	Bulb/switch	Replace LED bulb; check light switch connection.

Reset: Unplug for 5 minutes, then reconnect to reset control system.

Service: Contact authorized Liebherr service technician for repairs. Do not attempt to repair refrigerant system.