It is designed to be swapped into your existing centrifugal blower assembly

Variable Speed Compatibility: Optimized for modulating boiler systems that utilize pulse width modulation (PWM) signals for airflow control

extending the service life of the 1650 RPM blower motor in challenging environments

it features a single-phase design

Danfoss 003Z1321 Valve 326010-701 It is designed to beThe Danfoss 003Z1321 is a high performance AB QM Pressure Independent Control Valve (PICV) designed for precision flow regulation in HVAC systems. Featuring a 1 2" connection and a flow range of 0. 25 to 1. 2 GPM, this valve eliminates the need for manual balancing by maintaining a constant differential pressure across the control orifice. This dynamic balancing valve ensures that flow remain stable despite pressure fluctuations elsewhere in the