This document outlines the Installation and Operational Qualification (IQ/OQ) procedures for Arctiko LRE 700/1400 and LFE 700/1400 appliances, which are true cooling specialists. The IQ/OQ process is designed to ensure that these appliances are installed correctly and operate according to specifications, thereby validating their function and readiness for operation.
Function Description
The Arctiko LRE 700/1400 and LFE 700/1400 appliances are designed for precise temperature control, functioning as either refrigerators or freezers. The IQ/OQ document details a comprehensive validation process to confirm that these units meet their intended operational parameters and are suitable for their specified use. The Installation Qualification (IQ) verifies that the appliance matches the order and is installed in an appropriate environment. The Operational Qualification (OQ) then confirms the appliance's functionality and operational readiness, including temperature performance, alarm systems, and recovery capabilities.
Important Technical Specifications
The document provides specific technical parameters and acceptance criteria for both refrigerator and freezer models.
Temperature Control:
- Set Point (St): Default is +4°C for refrigerators and -20°C for freezers.
- Control Delta / Hysteresis (rd): Default is 2 for both models, indicating the temperature range around the set point within which the compressor operates.
- Temperature Deviation: Maximum allowed deviation is 5K between the warmest and coldest temperature values measured during a 2-hour period.
- Calibration: Calibration of the appliance sensor is recommended if a temperature deviation of more than 0.5°C is found between the test probe in the center of the appliance and the display temperature. For 1400 models, the average of two center probes is used for calibration.
Alarm Systems:
- High Temperature Alarm (AH): Default settings are 5 for refrigerators and 8 for freezers. These are relative thresholds to the set point. For example, with a +4°C set point, an AH setting of 5 means the alarm activates at +9°C. For a -20°C set point, an AH setting of 7 means activation at -13°C.
- Low Temperature Alarm (AL): Default settings are 4 for refrigerators and 10 for freezers. These are also relative thresholds. For example, with a +4°C set point, an AL setting of 3 means activation at +1°C. For a -20°C set point, an AL setting of 6 means activation at -26°C.
- Alarm Delay (Ad): Both low and high alarm delays are set to 5 minutes by default.
- Door Open Alarm Bypass Time (d8d): Default is 2 minutes, allowing a grace period after the door is opened before the alarm activates.
- High Temperature Alarm Bypass Time after Defrost and Door Open (d8): Default is 0 for both models.
- Remote Alarm Connection: The appliance includes a remote alarm contact (terminals 16 and 18 N/C) in the engine room, which should be correctly connected to an external system if utilized.
Environmental Conditions:
- Maximum Ambient Temperature: +25°C for freezer models and +43°C for refrigerator models.
- Humidity: Recommended ambient conditions for temperature mapping are 45-65% RH.
- Installation Surface: Must be solid and flat to prevent vibrations and noise.
- Ventilation: The room must be well-ventilated, and sufficient free space around the appliance is required for air circulation as per the operating instructions manual.
Pull Down Time (by ambient temp. of max. +25°C):
- Refrigerator: Maximum 1 hour.
- Freezer: Maximum 1.5 hours.
Temperature Recovery Time (after 1-minute door opening):
- Refrigerators: Maximum 15 minutes.
- Freezers: Maximum 40 minutes.
Defrost Interval (dl): 6 hours for LFE 700/1400 models; N/A for LRE 700/1400 models.
Usage Features
The Arctiko appliances are designed for user-friendly operation and monitoring, with features that ensure reliable performance and safety.
- Controller: The display should be free of scratches, and all cables must be mounted according to safety requirements.
- Password Protection (PS): A password (default 22) is required to access all parameters, ensuring controlled access to critical settings. A separate password (0, as per the user manual) provides access to a selected number of parameters.
- Door: The door should open and close smoothly, be lockable with a key, and have no gaps between the gasket and frame to maintain temperature integrity.
- Leveling: Appliances equipped with feet should be properly leveled, and those with castors should have them locked to ensure stability.
- Documentation: Users are required to read and understand the operating instruction manual, which is supplied with the appliance.
Maintenance Features
The IQ/OQ document emphasizes several aspects related to the maintenance and long-term reliability of the Arctiko appliances.
- Cleaning: The appliance must be cleaned, and all packing material and protection foil removed during installation.
- Electrical Connection: The power cord must be correctly mounted, and the electrical connection must comply with the power supply noted on the rating plate, the power socket's power supply, the operating instruction manual, and local regulations. The power supply fuse of the switchboard should be 10A.
- Noise Monitoring: Regular checks for unusual noise from the compressor and fan are part of the operational qualification, indicating potential issues.
- Parameter Verification: Key operational parameters should be checked and verified approximately once a year to ensure continued compliance with specifications.
- Deviation Reporting: A formal deviation report process is in place for any issues found during qualification that cannot be immediately corrected. This ensures traceability and proper resolution of non-conformities.
- Service Website Support: Any additional documentation required for qualification can be downloaded from Arctiko's service website, and distributors can be contacted for support.
The comprehensive IQ/OQ process ensures that Arctiko LRE 700/1400 and LFE 700/1400 appliances are installed correctly, operate efficiently, and maintain their specified performance over time, providing reliable cooling solutions.
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