1. Energy-Saving Standards: Reduce Costs While Meeting Environmental Requirements

1.1 Core International Energy-Saving Standards

• ISO 1217:2019: This standard specifies the testing methods for the performance of refrigeration equipment, including cooling capacity, power consumption, and energy efficiency ratio (EER). A machine meeting ISO 1217:2019 guarantees accurate energy consumption data and stable performance.

• EU ErP Directive (2021/348): Mandatory for products sold in the European Union, this directive sets strict limits on the energy consumption of refrigeration equipment. Machines compliant with ErP typically have an EER 15-20% higher than non-compliant models.

• ASHRAE 90.1: Widely adopted in North America, this standard requires Food Quick Freezing Machine to use high-efficiency compressors and heat exchangers, reducing energy waste during operation.

• China GB 19577-2015: For the Asian market, this national standard classifies the energy efficiency of industrial refrigeration equipment into five levels, with Level 1 being the most energy-efficient (saving up to 30% energy compared to Level 5).

1.2 Key Energy-Saving Technologies

• Inverter Compressor: Unlike traditional fixed-speed compressors, inverter compressors adjust their operating speed based on the cooling demand. When the ingredient temperature approaches the target, the compressor slows down, reducing energy consumption by 25-35% during low-load operation.

• Air Curtain Insulation System: Installed at the inlet and outlet of the freezing chamber, the air curtain forms a high-speed airflow barrier, minimizing cold air leakage. This technology reduces energy loss by 10-15%, especially for tunnel-type quick freezing machines with continuous material feeding.

• Heat Recovery System: Captures the waste heat generated by the compressor and condenser, recycling it for defrosting the evaporator or heating the workshop. This not only saves energy for defrosting but also reduces the need for additional heating equipment.

• Intelligent Temperature Control: Equipped with AI-based sensors, the machine automatically adjusts the cooling power according to the type, quantity, and initial temperature of ingredients. For example, freezing delicate berries requires a slower cooling rate than seafood, and intelligent control avoids unnecessary energy consumption.

2. Installation Conditions: Lay a Solid Foundation for Stable Operation

2.1 Site Requirements

2.2 Power Supply and Refrigerant Piping

• Power Supply: The voltage fluctuation must be within ±5% of the rated voltage (e.g., 380V ±19V for three-phase industrial machines). A dedicated circuit with a leakage protector and air switch (rated current 1.2 times the machine’s maximum current) is required. Grounding resistance must be ≤ 4Ω to ensure electrical safety.

• Refrigerant Piping: Use seamless copper pipes (TP2 grade) with a wall thickness of ≥ 1.2mm. The piping should be as short and straight as possible, with a bending radius ≥ 5 times the pipe diameter to reduce refrigerant resistance. After installation, conduct a pressure test (2.5MPa for R410A refrigerant) and vacuum drying (vacuum degree ≤ 5Pa) to prevent air and moisture from entering the system.

2.3 Auxiliary Equipment Installation

• Condenser: For air-cooled condensers, ensure they are installed in a well-ventilated area; for water-cooled condensers, connect to a circulating water system with a flow rate matching the machine’s cooling capacity (e.g., 1.5m³/h per 10kW cooling capacity).

• Conveyor System: Align the inlet/outlet of the quick freezing machine with the production line conveyor. The conveyor speed should be adjustable (0.5-3m/min) to match the freezing time of different ingredients.

• Drainage System: Install a 3-inch or larger drainage pipe at the bottom of the freezing chamber to quickly discharge defrost water. The pipe should have a slope of ≥ 5° to avoid water accumulation.

3. Operation Methods: Ensure Efficiency and Food Safety

3.1 Pre-Start Preparation (5 Minutes Before Operation)

1. Equipment Inspection: Check if the machine body is stable, if the conveyor belt is clean and not deviated, and if the refrigerant piping has no leakage (use a refrigerant detector to test).

2. Power and Refrigerant Check: Turn on the main power switch, check if the voltage is normal, and confirm that the refrigerant level is within the standard range (indicated by the sight glass on the liquid storage tank).

3. Cleaning: Wipe the inner wall of the freezing chamber with a food-grade disinfectant (e.g., 75% alcohol) to prevent cross-contamination; ensure the air inlet and outlet are not blocked by debris.

3.2 Parameter Setting (Based on Ingredient Type)

3.3 Runtime Monitoring and Operation

• Start-Up Sequence: First turn on the condenser fan/compressor, wait 3-5 minutes for the refrigeration system to stabilize, then start the conveyor belt and feed the ingredients.

• Real-Time Monitoring: Observe the temperature display on the control panel (error ≤ ±1℃). If the temperature exceeds the set range by 3℃, check if the evaporator is frosted or if the refrigerant is leaking.

• Feeding Requirements: Maintain a uniform feeding amount (no more than 80% of the conveyor load) to avoid uneven freezing. For IQF (Individual Quick Freezing) machines, ensure the ingredients are evenly distributed.

• Shutdown Sequence: Stop feeding first, wait until the last batch of ingredients is discharged, then turn off the conveyor belt, and finally turn off the compressor and main power. Do not shut down abruptly to prevent refrigerant backflow.

4. Maintenance Methods: Extend Equipment Lifespan

4.1 Daily Maintenance (15 Minutes After Shutdown)

• Cleaning: Remove food residues from the conveyor belt, inner wall, and air duct with a soft brush and warm water (≤ 40℃). Avoid using sharp tools to prevent scratching the stainless steel surface.

• Condenser Cleaning: For air-cooled condensers, use a high-pressure air gun to blow off dust on the fins; for water-cooled condensers, open the drain valve to discharge sediment.

• Parameter Record: Record the operating voltage, current, temperature, and refrigerant pressure in the logbook to track abnormal changes.

4.2 Monthly Maintenance (Scheduled During Production Downtime)

• Refrigeration System Check: Test the tightness of the refrigerant piping with a leak detector. If leakage is found, repair the pipe and recharge the refrigerant (use the type specified by the manufacturer, e.g., R410A or R290).

• Lubrication: Add food-grade lubricating oil to the conveyor chain and bearing (oil type: NLGI 2). Wipe off excess oil to prevent contamination.

• Electrical System Inspection: Tighten the terminals of the motor, sensor, and control panel. Check if the insulation layer of the power cord is damaged.

• Evaporator Defrosting: If the evaporator has frost thicker than 5mm, start the manual defrost function (or use hot water defrosting, avoid using open fire). After defrosting, dry the evaporator with compressed air.

4.3 Annual Maintenance (Professional Engineer Required)

• Compressor Overhaul: Disassemble the compressor to check the wear of the piston and valve plate. Replace the filter drier and refrigerant oil.

• Heat Exchanger Cleaning: Use a chemical cleaning agent (e.g., citric acid solution) to remove scale from the condenser and evaporator, improving heat exchange efficiency.

• Control System Calibration: Calibrate the temperature sensor, pressure gauge, and timer with professional equipment to ensure accurate parameter display and control.

• Structural Inspection: Check if the machine body, conveyor frame, and door seals are deformed. Replace aging door seals to prevent cold air leakage.

5. Why Choose Our Food Quick Freezing Machine? Key Advantages for B2B Buyers

• Superior Energy Efficiency: Adopts inverter compressor and heat recovery system, complying with EU ErP and ISO 1217 standards, reducing energy costs by 30% annually.

• Wide Adaptability: Available in tunnel, spiral, and flat-plate models, suitable for seafood, fruits, meat, and prepared dishes. Customizable cooling capacity (10kW-500kW) for different production scales.

• Intelligent Operation: Equipped with a 7-inch touch screen and PLC control system, supporting remote monitoring and parameter presetting. Reduces the need for skilled operators.

• Easy Maintenance: Modular design for quick part replacement; free maintenance training and 24/7 after-sales support (covering Europe, North America, and Southeast Asia).

• Food Safety Compliance: Uses 304 stainless steel and food-grade lubricants, meeting FDA, CE, and HACCP standards. Suitable for export-oriented food enterprises.