ZEDO ZD-8168C Industrial Desiccant Dehumidifier for Printing Facilities
| Brand | ZEDO |
|---|---|
| Origin | Zhejiang, China |
| Manufacturer Type | Direct Manufacturer |
| Region Category | Domestic (China) |
| Model | ZD-8168C |
| Instrument Type | Compressor-Based Industrial Dehumidifier |
| Dehumidification Capacity | 168 L/day (7 kg/h) |
| Control Method | Intelligent Humidity Setpoint Control |
| Drainage | Continuous via PVC Drain Hose |
| 适用 Area | 130–180 m² |
| Power Supply | 380 V AC, 50 Hz |
| Input Power | 2800 W |
| Operating Temperature Range | 5–38 °C |
| Noise Level | 52 dB(A) |
| Dimensions (W×D×H) | 605 × 410 × 1650 mm |
| Net Weight | 126 kg |
| Compressor Protection | 3-Minute Delay Start |
| Safety Protections | High/Low Pressure, Overload, Undervoltage, Reverse Phase |
| Sensor | Japanese Shinyo High-Precision Hygrothermograph |
| Fan System | Dual-Centrifugal External Rotor Blower |
| Heat Exchanger | Hydrophilic Aluminum Fin-Tube with Internal Grooved Copper Tubes |
| Filtration | Standard Activated Carbon Filter |
| Automation | Microcomputer Controller with Touch Interface |
| Structural Design | Separated Airflow & Refrigeration Circuits |
Overview
The ZEDO ZD-8168C is a high-capacity, compressor-driven industrial dehumidifier engineered specifically for humidity-critical environments in printing facilities, packaging plants, and precision manufacturing spaces. Unlike portable or residential units, the ZD-8168C operates on the principle of refrigerant-based condensation—drawing ambient air across a sub-cooled evaporator coil where moisture condenses and is removed as liquid water, while dry air is reheated and discharged back into the space. This thermodynamic process delivers stable, repeatable dehumidification performance under variable load conditions typical of large-volume production floors. With a rated capacity of 168 liters per day (7 kg/h), it maintains consistent relative humidity control within the optimal range of 40–55% RH—critical for minimizing paper dimensional instability, ink drying variability, and electrostatic discharge in offset, gravure, and flexographic printing operations.
Key Features
- Industrial-Grade Refrigeration Architecture: Equipped with a globally sourced scroll-type compressor and eco-friendly R410A refrigerant, delivering high coefficient of performance (COP) and low vibration operation over extended duty cycles.
- Optimized Heat Transfer System: Features a hydrophilic aluminum finned evaporator paired with internally grooved copper tubing—enhancing latent heat exchange efficiency and resistance to corrosion in high-humidity industrial atmospheres.
- Dual-Centrifugal Air Handling: Utilizes an external rotor blower assembly with dual centrifugal impellers, achieving high static pressure capability (>120 Pa) and uniform airflow distribution across wide-area installations without ductwork.
- Microprocessor-Based Environmental Control: Integrated Japanese Shinyo hygrothermographic sensor enables ±2% RH accuracy; programmable setpoints, real-time monitoring, and automatic defrost logic ensure unattended reliability.
- Modular Service-Oriented Design: Separated refrigeration and airflow circuits allow isolated maintenance—refrigerant service, filter replacement, and drain line inspection can be performed without system shutdown.
- Comprehensive Electrical Protection Suite: Includes UL-listed contactors, molded-case circuit breakers, thermal overload relays, and phase-monitoring relays compliant with IEC 60204-1 safety standards.
Sample Compatibility & Compliance
The ZD-8168C is designed for continuous operation in non-classified industrial environments where ambient temperatures range from 5 °C to 38 °C and relative humidity exceeds 60% RH. It meets GB/T 19411–2003 (Chinese National Standard for Dehumidifiers) and conforms to electromagnetic compatibility requirements per GB 4343.1–2018. While not certified to ISO 14644 cleanroom classifications, its activated carbon pre-filter mitigates volatile organic compounds (VOCs) commonly present in ink solvent emissions—supporting compliance with occupational health guidelines such as OSHA 29 CFR 1910.1200. The unit’s continuous drainage capability and sealed condensate pan align with Good Manufacturing Practice (GMP) environmental control expectations for pharmaceutical packaging and printed electronics production.
Software & Data Management
The ZD-8168C incorporates embedded firmware with non-volatile memory logging—storing up to 30 days of timestamped humidity/temperature readings, runtime hours, fault codes, and compressor cycle counts. Data export is supported via RS-485 Modbus RTU protocol for integration into facility-wide Building Management Systems (BMS) or SCADA platforms. Optional Ethernet/Wi-Fi gateway modules enable remote configuration, alarm notification via SMTP/SNMP, and audit-trail generation compatible with FDA 21 CFR Part 11 electronic record requirements when deployed in regulated packaging or medical device print environments. All user interface interactions—including setpoint changes and manual defrost initiation—are logged with operator ID and timestamp.
Applications
- Paper storage and pre-conditioning zones in commercial printing plants
- Gravure and flexographic press rooms requiring ≤50% RH to prevent ink misting and substrate curl
- High-speed digital printing facilities using toner-based or UV-curable inks sensitive to moisture-induced adhesion loss
- Pharmaceutical blister packaging lines where humidity-induced delamination compromises barrier integrity
- Electrochemical manufacturing areas housing LiCl-based humidity sensors or hygroscopic battery components
- Underground archival vaults and museum conservation labs maintaining ISO 11799-compliant microclimates
FAQ
What is the minimum recommended operating temperature for the ZD-8168C?
The unit is rated for continuous operation between 5 °C and 38 °C ambient. Below 5 °C, frost accumulation on the evaporator may impair performance; optional hot-gas bypass kits are available for low-temperature adaptation.
Can the ZD-8168C be integrated into a central HVAC control network?
Yes—via standard RS-485 Modbus RTU interface. BACnet/IP and KNX gateways are available as field-installable options.
Does this model comply with energy efficiency regulations in the EU or USA?
It meets China’s GB 19576–2019 energy labeling requirements (Level 2 efficiency). CE marking is not applicable as it is not CE-certified; UL/cUL listing requires third-party evaluation and is not included in base configuration.
Is condensate pump integration supported?
The unit supports gravity drainage only. For elevated discharge points, an external 12 V DC condensate pump (sold separately) can be connected to the internal float switch circuit.
How often does the activated carbon filter require replacement?
Under typical printing facility conditions with moderate VOC loading, replacement is recommended every 6–9 months or after 3,000 operational hours—whichever occurs first.
