Submittal Sheet

SMARTVFD HVAC
3 63-4520—08
SmartVFD BYPASS Features
The Smart VFD BYPASS is available in 5 configurations as
explained below. All configurations are available in NEMA 1,
NEMA 12 and ventilated NEMA 3R.
SmartVFD Disconnect:
Fused Disconnect with no bypass
SmartVFD 2-Contactor:
Provides an economical means of bypassing the VFD.
• No Main Disconnect
• Freeze/Fire/Smoke Interlock
SmartVFD 3-Contactor:
Commission, service or replace the VFD without affecting the
operation of the motor. Provide additional bypass control
capabilities with Auto-bypass and HOA options.
• Fused Disconnect
• Freeze/Fire/Smoke Interlock
• VFD can be isolated from power with motor running in
BYPASS mode
• TEST position powers the VFD without sending power to
the motor
SmartVFD 3-Contactor Options:
AUTO-BYPASS
• Any VFD fault will automatically send the bypass to
BYPASS mode
• A contact closure sends the bypass to BYPASS mode
• Dry contacts indicate when the bypass is in BYPASS
mode, alerting the building management system.