Pid Precision Control Rfusd-Hcd Constant Temperature Ducted Air Conditioner for Data Centers

Standard dehumidification continuously lowers room temperature while removing moisture. The RFUSD-HCD uses a temperature reheat circuit to restore supply air temperature after moisture condenses out. This maintains target indoor thermal comfort without reducing space temperature below setpoint levels.

On/off humidistats suffer from wide control hysteresis, causing noticeable relative humidity swings. PID closed-loop control continuously calculates error margins and modulates system response in real time, locking relative humidity within a tight 1% variance band for precise environmental control.

The unit pairs multi-stage turbine fans (2 to 4 impellers) with a brushless DC motor. This structure distributes static pressure evenly across the coil, enabling ultra-quiet sound pressure levels down to 19 dB(A) in minimum speed mode while maintaining uniform airflow.

During cool or seasonal transition periods, latent moisture removal can lower air temperature below setpoints. Integrated electric heaters (1.0 kW to 1.6 kW) provide controlled supplemental sensible heat, ensuring supply air remains at target temperature during active dehumidification cycles.

All RFUSD-HCD models incorporate a standard VP25 (inner diameter) drain port connection. Designed for double-capacity dehumidification modes, this connection size effectively manages continuous condensate discharge, provided external gravity lines maintain a consistent downward slope without air locks.