T-RACKS · Compliance
CE Technical File
Refrigerated rack cabinets – T-RACKS Series. Electronic control and supervision system.
Rev. 1.0 — 2026Manufacturer: Cybertechno Group S.r.l.
01 Manufacturer details
| Field | Details |
|---|---|
| Company Name | Cybertechno Group S.r.l. |
| Registered Office | Via dei Mille, 59 – 80121 Naples (NA), Italy |
| VAT Number | IT08357401218 |
| CEO | Andrea Iaquinto |
| CTO / Technical Manager | Giulio Avella / Marcello Cozzolino |
| Phone | +39 081 335 4818 |
| t-racks@cybertechno.eu |
02 Product designation
| Field | Details |
|---|---|
| Product | T-RACKS |
| Type | Refrigerated rack cabinets |
| Brief Description | Integrated system for temperature and humidity control inside technical cabinets through refrigeration and electronic supervision. |
03 General system description
The T-RACKS series cabinets are designed to maintain controlled environmental conditions inside technical racks.
Integrated Components
- Commercial refrigeration unit (Rivacold)
- Control system based on Raspberry Pi
- Command relay module
- DS18B20 temperature sensors
- DHT11 temperature & humidity sensor
- Dew point calculation system
- 24V LED internal lighting
- Sheet metal cabinet structure manufactured by STI S.r.l.
System Objectives
- Temperature control
- Relative humidity control
- Condensation prevention
- Data supervision and logging
04 Field of application
| Environment | Notes |
|---|---|
| Industrial environments | Installation in protected areas |
| Server rooms | Racks for ICT equipment |
| Technical rooms | Automation panels / PLC enclosures |
| Automation applications | Process environmental control |
The system is designed to operate exclusively in protected indoor environments.
05 Cabinet structure and thermal insulation
The T-RACKS cabinet is built with a metal structure supplied by STI S.r.l., featuring:
5.1 Airtight Seal and Insulation
- Insulated walls: the entire structure is insulated with thermal panels to ensure heat isolation
- Airtight construction: designed to be completely sealed, preventing external air infiltration
- Doors and access panels: equipped with perimeter gaskets to guarantee sealing integrity
5.2 Cable Entries
| Feature | Description |
|---|---|
| Entry system | Cable glands / cable entries with sealing gasket |
| Insulation | Integrated insulating foam in cable passages |
| Function | Prevents air exchange with the outside, maintains airtight integrity |
5.3 Ventilation
Only controlled opening: the upper section of the cabinet, where the Rivacold refrigeration unit is installed, is equipped with ventilation grilles to ensure proper cooling system operation. All other cabinet surfaces are fully closed and insulated.
06 Noise emissions
The T-RACKS system is designed to ensure low noise levels, making it suitable for installation in indoor environments such as offices, server rooms, and technical areas.
6.1 Measured Sound Pressure Levels
| Measurement Distance | dB(A) Level | Average Value | Reference |
|---|---|---|---|
| 3 metres | 51.6 dB(A) | 48.6 dB(A) | Environment: quiet office |
| 1 metre | 54.4 dB(A) | 46.4 dB(A) | Environment: quiet office |
6.2 Photographic Documentation of Measurements
- Measured level: 51.6 dB(A) – Average: 48.6 dB(A)
- Measured level: 54.4 dB(A) – Average: 46.4 dB(A)
6.3 Measurement Conditions
- Instrumentation: Calibrated digital sound level meter (Ok Sigma App)
- Environment: Controlled indoor setting
- Regulatory reference: Measurements taken under normal refrigeration unit operating conditions
- Reference level: 50 dB(A) = quiet office
The measured noise levels are compatible with indoor workplace installation and do not require additional acoustic protection measures.
07 Electrical structure and power supply
The system features two separate and independent power lines.
7.1 Refrigeration Unit Power Line
- Direct power supply to the Rivacold unit
- No modifications to original protections
- Guaranteed autonomous operation
7.2 Electronic Systems Power Line
Powers: Raspberry Pi, relay module, sensors, 24V LED lighting.
7.3 Isolation / Switching
| Requirement | Implementation |
|---|---|
| Isolators | Independent per line |
| Circuit identification | CEI-compliant labelling |
| Access | Restricted to qualified personnel |
7.4 Electrical Protection
Live parts are protected by:
- PETG panel
- PETG insulating enclosures
- Access restricted to qualified personnel
08 Component protection
| Component | Enclosure | Functions |
|---|---|---|
| Raspberry Pi | Dedicated PETG enclosure | Electrical insulation, mechanical protection, maintenance safety |
| Relay board | Dedicated PETG enclosure | Electrical insulation, mechanical protection, maintenance safety |
09 Connections and maintenance
| Feature | Description |
|---|---|
| Connector type | Quick-release plug-in connectors |
| Advantages | Tool-free replacement, simplified maintenance, reduced operational errors |
| Accessibility | Designed for fast and safe interventions |
10 System operation
The system operates through:
- Temperature acquisition (DS18B20)
- Humidity acquisition (DHT11)
- Dew point calculation
- Relay control
- Continuous monitoring
- Data logging
The refrigeration unit retains all original safety protections.
11 Control software
| Feature | Details |
|---|---|
| Platform | Raspberry Pi |
| Type | Proprietary software developed in-house |
| Functions | Sensor reading, dew point calculation, relay management, data logging, system supervision |
| Safety | The software DOES NOT interfere with the refrigeration unit's safety devices. Fail-safe logic integrated. |
12 Operation in case of failure
| Scenario | System Behaviour |
|---|---|
| Electronic system failure | Manual control of refrigeration unit available |
| Cooling continuity | Refrigeration unit continues to operate autonomously |
| Original protections | All active and unaltered |
| Loss of dew point control | DOES NOT create hazardous conditions. Results only in reduced performance. |
13 Risk assessment
| Ref. | Risk Description | Mitigation Measures | Status |
|---|---|---|---|
| R1 | Electrical hazard | Insulation, PETG protections, controlled access | Mitigated |
| R2 | Thermal hazard | Continuous monitoring, ventilation | Mitigated |
| R3 | Mechanical hazard | Adequate structure, certified fastenings | Mitigated |
| R4 | Handling of insulated panels | Use of PPE, two-person handling | Mitigated |
| R5 | Condensation / wet surfaces | Humidity monitoring, dew point calculation, environmental control | Mitigated |
| R6 | Noise | Sound levels below 55 dB(A), compatible with workplaces | Mitigated |
14 Attached technical documentation
| N. | Document | Format | Revision | Status |
|---|---|---|---|---|
| 01 | T-RACKS Cabinet CAD Drawings | DWG / PDF | Rev. [ ] | Attached |
| 02 | Single-Line Electrical Diagram – Power Supplies | Rev. [ ] | Attached | |
| 03 | Block Diagram – Thermostat/Control System | Rev. [ ] | Attached | |
| 04 | CE Declaration of Conformity – Rivacold Refrigeration Unit | Original | Attached | |
| 05 | Component Manuals (Raspberry Pi, sensors, relays) | [ ] | Attached | |
| 06 | Assembly Photographic Documentation | JPG / PDF | [ ] | Attached |
| 07 | Noise Emissions Measurement Report | [ ] | Attached |
15 Applied directives and standards
European Directives
| Reference | Title | Field of Application |
|---|---|---|
| 2014/35/EU | Low Voltage Directive (LVD) | Electrical equipment safety |
| 2014/30/EU | Electromagnetic Compatibility (EMC) | Immunity and emissions |
| 2011/65/EU | RoHS | Restriction of hazardous substances |
| 2000/14/EC | Noise Emissions | Equipment noise levels |
Technical Standards
| Standard | Title | Reference in Technical File |
|---|---|---|
| EN 60204-1 | Safety of machinery – Electrical equipment | Sec. 7 |
| EN ISO 12100 | Risk assessment | Sec. 13 |
| EN 60529 | Degrees of protection (IP Code) | Sec. 7.4 |
| EN 61439 | Low-voltage switchgear and controlgear assemblies | Sec. 7, 8 |
| ISO 3744 | Determination of sound power levels | Sec. 6 |
16 System classification
The T-RACKS system is classified as: Integration system of CE-marked components. It does not constitute a standalone machine under the Machinery Directive. Integration respects intended use limits and does not alter the original safety conditions of the components.
17 Technical file retention
This technical file shall be retained for a minimum period of 10 years from the date of last market placement. It is available upon request by competent authorities.
18 Signature and validation
Technical Manager (CTO)
Giulio Avella / Marcello Cozzolino
Signature
Legal Representative (CEO)
Marcello Cozzolino
Signature
Place and date
Naples, Italy
Date
Company stamp
Cybertechno Group S.r.l.
Reserved space
Document generated to support CE compliance. Final validation remains the responsibility of the manufacturer or competent body according to applicable directives.
Download the technical file
The complete CE technical file in PDF, available in Italian and English.