1. Introduction
1.1 Overview
This user manual provides essential information for the safe and efficient operation, installation, and maintenance of your Vitrifrigo ND35 OR-V refrigerant cooling unit. Please read this manual thoroughly before installing or operating the unit to ensure proper function and to prevent damage or injury.
1.2 Safety Instructions
- Always disconnect power before performing any installation, maintenance, or troubleshooting.
- Installation and service should only be performed by qualified personnel.
- Ensure adequate ventilation around the unit to prevent overheating.
- Do not modify the unit or its components. Unauthorized modifications can lead to malfunction and void the warranty.
- Handle refrigerant lines with care. Avoid kinking or damaging them.
- This unit operates under nitrogen pressure. Exercise caution when handling.
2. Product Description
The Vitrifrigo ND35 OR-V is a compact refrigerant cooling unit designed for creating refrigerated spaces up to 300 liters and freezer compartments up to 100 liters. It operates primarily on 12/24 VDC and is supplied pre-charged with refrigerant under nitrogen pressure. The unit is designed for versatility, with options for quick couplings and additional power supply compatibility for 100/240 VAC.
Key features include:
- Compact compressor-based cooling system.
- Operates on 12/24 VDC standard.
- Suitable for refrigeration up to 300 liters and freezing up to 100 liters.
- Supplied under nitrogen pressure (without quick couplings).
- Optional AC power supply via electronic control unit (12-24 / 100-240 VAC 50/60 Hz) or external self-switching power supply.
An image showing the compact design of the Vitrifrigo ND35 OR-V refrigerant cooling unit, featuring its compressor, copper tubing, and electrical connections.
3. Setup
3.1 Unpacking and Inspection
Carefully remove the unit from its packaging. Inspect for any signs of shipping damage. Report any damage to your supplier immediately. Retain packaging for future transport or storage.
3.2 Mounting the Unit
The ND35 OR-V is designed for freestanding installation. Choose a location that is dry, well-ventilated, and protected from direct sunlight or excessive heat sources. Ensure there is sufficient space around the unit for air circulation, especially around the condenser coils. Secure the unit using appropriate fasteners to prevent movement during operation.
3.3 Electrical Connection
The unit operates on 12/24 VDC. Connect the positive (+) and negative (-) terminals to a stable DC power source, ensuring correct polarity. Use appropriately sized wiring to prevent voltage drop, especially over longer distances. For optional 100/240 VAC operation, connect the electronic control unit or external self-switching power supply according to its specific instructions. Always ensure the power source matches the unit's requirements.
4. Operating Instructions
4.1 Initial Startup
After installation and electrical connection, apply power to the unit. The compressor should start. Allow the unit to run for several hours to reach the desired temperature before loading the compartment with items.
4.2 Temperature Control
Temperature control is typically managed by an external thermostat or control panel connected to the unit (not included with the basic ND35 OR-V unit). Refer to the instructions for your specific thermostat or control system for setting and adjusting temperatures.
4.3 Power Supply Options
The unit automatically adapts to 12V or 24V DC input. If using the optional AC power supply, ensure the correct voltage (100-240 VAC) is provided. The electronic control unit or external power supply will convert the AC to the appropriate DC voltage for the compressor.
5. Maintenance
5.1 Regular Cleaning
Keep the condenser coils clean and free of dust and debris. A build-up of dirt can reduce cooling efficiency and increase power consumption. Use a soft brush or vacuum cleaner to gently remove dust. Ensure the unit is disconnected from power before cleaning.
5.2 System Checks
Periodically check all electrical connections for tightness and signs of corrosion. Inspect refrigerant lines for any visible damage or leaks. If a leak is suspected, contact a qualified technician immediately.
5.3 Winterization (if applicable)
If the unit is installed in an environment that will experience freezing temperatures and will not be in use, it is advisable to disconnect power and ensure the system is protected from extreme cold, although the unit itself is designed for robust operation.
6. Troubleshooting
Before contacting service, please check the following common issues:
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit not cooling | No power; Insufficient ventilation; Refrigerant leak; Faulty thermostat | Check power connection/fuse; Clear obstructions around condenser; Contact technician; Check thermostat settings |
| Compressor runs continuously | High ambient temperature; Door/lid not sealed; Overloaded compartment; Thermostat set too low | Improve ventilation; Check door seal; Reduce load; Adjust thermostat setting |
| Unusual noise | Loose mounting; Fan obstruction; Internal component issue | Check mounting screws; Clear fan area; Contact technician |
7. Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Vitrifrigo |
| Model Reference | ND35 OR-V |
| Cooling Capacity (Max) | Up to 300 Liters (refrigeration) |
| Freezing Capacity (Max) | Up to 100 Liters (freezer) |
| Power Supply (Standard) | 12/24 VDC |
| Power Supply (Optional) | 100-240 VAC (with electronic control unit/external power supply) |
| Installation Type | Freestanding |
| Form Factor | Compact |
| Defrost System | Automatic |
| Cooling Method | Compressor |
8. Warranty and Support
Vitrifrigo products are manufactured to high quality standards and come with a limited warranty against defects in materials and workmanship. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Vitrifrigo website.
For technical support, spare parts, or service inquiries, please contact your authorized Vitrifrigo dealer or the customer service department. When contacting support, please have your model number (ND35 OR-V) and purchase information readily available.