Johnson Controls VFD66DAA-2 Frequency Drive

The Johnson Controls VFD66DAA-2 is a robust variable frequency drive specifically engineered for high-demand refrigeration and HVAC applications. Operating at 460 Vac, this 2 HP 1.5 kW VFD is designed to regulate the speed of three-phase condenser fan motors by modulating both frequency and voltage. This precise control is essential for maintaining optimal head pressure, particularly during low ambient conditions, reducing energy consumption and mechanical wear. Housed in a NEMA 1 enclosure, the unit utilizes integrated fan cooling to ensure thermal stability under continuous operation. Professionals often utilize the VFD66 series for its seamless compatibility with P499 electronic pressure transducers and System 450 controllers, allowing for automated response to real-time system fluctuations via 0-10 VDC or 4-20 mA input signals.

• Optimized Head Pressure: Prevents short-cycling and stabilizes refrigeration cycles during varying load conditions.
• Technical Versatility: Supports three-phase motor control for commercial air-cooled condensers and cooling towers.
• Advanced Protection: Features ground fault protection and isolated input circuitry to mitigate electrical noise and extend component lifespan.
• Simplified Commissioning: The intuitive four-button keypad and display allow for rapid parameter adjustment and monitoring.

• What is the maximum output frequency for this drive? The VFD66DAA-2 can provide an output frequency range up to 1500Hz, though standard HVAC applications typically operate within 0-60Hz.
• Is this unit suitable for outdoor installation? This specific model features a NEMA 1 enclosure, which is intended for indoor use. For outdoor applications, a NEMA 4 rated version is required.
• Can I use a single VFD for multiple motors? Yes, the VFD66DAA-2 can control multiple motors simultaneously provided the total current draw does not exceed the 5.7 Amp rating.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.