ZEDO ZD-8168C 7 kg/h Industrial Dehumidifier

Overview

The ZEDO ZD-8168C is a heavy-duty, compressor-driven industrial dehumidifier engineered for continuous operation in demanding production and controlled-environment facilities. It operates on the principle of refrigerant-based condensation—drawing ambient air across a cooled evaporator coil where moisture condenses and is collected or drained continuously, while dry air is reheated and returned to the space. With a rated dehumidification capacity of 7 kg/h (168 L/day), the unit is specifically designed to maintain stable relative humidity (RH) levels between 30% and 60% in large-volume environments where hygroscopic damage, microbial growth, or process instability pose operational risks. Its robust architecture supports uninterrupted service in precision manufacturing, pharmaceutical cleanrooms, electronics assembly lines, archival storage, and defense-related infrastructure—particularly in high-humidity coastal and subtropical regions where seasonal dew points frequently exceed 18 °C.

Key Features

• High-efficiency scroll compressor with R410A refrigerant—optimized for energy efficiency, low vibration, and extended service life under continuous load.
• Hydrophilic aluminum fin-tube heat exchanger with internally grooved copper tubing—maximizing surface contact area and latent heat transfer for consistent condensate removal across variable ambient conditions.
• Dual-centrifugal external rotor blower system—delivering high static pressure and volumetric airflow (>1200 m³/h) while maintaining acoustic performance at ≤52 dB(A) at 1 m distance.
• Microprocessor-based controller with Japanese Shinko RH/T sensor—enabling ±3% RH accuracy, programmable setpoints (30–80% RH), hysteresis control, and real-time fault diagnostics displayed on an intuitive touch interface.
• Integrated safety architecture—including three-minute compressor restart delay, high/low refrigerant pressure monitoring, thermal overload protection, undervoltage detection, and automatic shutdown upon sensor or fan failure.
• Structural modularity—separate refrigeration and airflow assemblies allow for simplified maintenance access without system depressurization or refrigerant recovery.

Sample Compatibility & Compliance

The ZD-8168C is suitable for use in ISO Class 7–8 cleanrooms, GMP-compliant pharmaceutical packaging zones, and humidity-sensitive material handling areas where moisture-induced degradation must be mitigated per ASTM D644 (Standard Test Methods for Moisture Content of Solid Electrical Insulating Materials) and IEC 60068-2-30 (Environmental Testing – Damp Heat, Cyclic). While not certified to UL 1995 or EN 60335-2-40 out-of-the-box, its electrical components—including Schneider contactors, Siemens thermal relays, and ABB circuit breakers—meet IEC 60947 standards. The unit supports GLP/GMP documentation workflows through optional RS485 Modbus RTU output (available via accessory module), enabling integration into centralized building management systems (BMS) for audit-ready humidity logging and alarm event tracking.

Software & Data Management

The embedded controller records operational parameters—including runtime hours, compressor cycles, inlet/outlet RH and temperature, and fault codes—for local review via the front-panel display. For enterprise-level data governance, the optional communication interface supports Modbus RTU protocol, allowing seamless connection to SCADA platforms or LIMS environments. When paired with compatible data loggers (e.g., HOBO UX100-011), the system can generate time-stamped, tamper-resistant humidity trend reports compliant with FDA 21 CFR Part 11 requirements—provided digital signature and audit trail functionality are implemented at the host software layer. No proprietary cloud platform is required; all configuration and calibration remain fully local and user-managed.

Applications

• Precision electronics manufacturing—preventing solder paste oxidation, PCB delamination, and electrochemical migration in SMT reflow and post-assembly staging areas.
• Pharmaceutical secondary packaging—maintaining ≤45% RH during blister packaging, labeling, and cartoning to ensure adhesive integrity and prevent tablet caking.
• Lithium battery electrode drying rooms—supporting NMC/LFP cathode coating processes where dew point stability below −20 °C is critical prior to calendaring.
• Optical instrument calibration labs—preserving interferometric stability and lens coating adhesion by eliminating micro-condensation on metrology-grade surfaces.
• Underground command centers and naval vessel compartments—mitigating corrosion on avionics enclosures, switchgear, and fiber-optic termination panels in confined, recirculated air environments.
• Archival document vaults and museum conservation studios—limiting cellulose hydrolysis and fungal colonization in paper, parchment, and textile collections per ISO 11799 guidelines.

FAQ

What is the minimum recommended room sealing level for optimal performance?
For rated capacity delivery, the treated space should exhibit ≤1.5 air changes per hour (ACH) with exterior infiltration—achievable via standard weatherstripping, HVAC duct balancing, and door gasketing. Unsealed environments may require 20–30% oversizing of dehumidification capacity.
Can this unit operate continuously at 5 °C ambient temperature?
Yes—the refrigeration system includes intelligent defrost logic and low-temperature lubrication management, permitting stable operation down to 5 °C without manual intervention or auxiliary heating.
Is condensate pump integration supported?
The unit features gravity drain as standard; however, a 24 V DC condensate pump (sold separately) can be connected via the auxiliary terminal block for elevated discharge applications up to 5 m vertical lift.
Does the controller support remote monitoring via Ethernet or Wi-Fi?
No native Ethernet/Wi-Fi capability is included; remote access requires third-party IoT gateway integration using the Modbus RTU interface.
What maintenance intervals are recommended for long-term reliability?
Compressor oil inspection every 2000 operating hours; heat exchanger cleaning every 6 months in dusty environments; activated carbon filter replacement every 12 months or after 4000 hours of continuous use.