Variable Pressure Range: Effectively operates from low minimum differential pressures up to 145 PSI depending on the installed coil

The single threaded hub is designed to fit standard 1/2-inch knockouts

it draws operational energy directly from the monitored line

Common Questions Is the AL-161-4 a direct replacement for the AL-161-0-4-1

Proper inducer assembly stability directly correlates to total system reliability and heat exchanger longevity

Venstar VSACC0410 Relay 322056-301 Variable Pressure Range: Effectively operatesThe Venstar VSACC0410 Add A Wire Relay is a critical solution for retrofitting thermostats in applications where additional conductors are unavailable. Functioning as a 4 to 5 wire adapter, this relay allows a 4 wire cable to operate like 5 wires, specifically providing a common wire (C wire) path without the labor intensive process of pulling new thermostat wire through finished walls or tight plenums. As the direct replacement for the P474 0410, the