ZoneFirst MZA2 Zone Adder Els PW 29614 The Alco X-11873-B5B cage is

The Alco X-11873-B5B cage is built to maintain system stability under varying load conditions

though the specific working pressure often depends on the tubing material and flaring technique used by the technician

It should only be used in circuits designed for automatic restoration to prevent bypassing established safety protocols

while the thermo-bonded coating on the thermostat probe resists mineral accumulation and corrosion

this drain pan assembly resists cracking and warping under extreme thermal cycling

ZoneFirst MZA2 Zone Adder Els PW 29614 The Alco X-11873-B5B cage isThe ZoneFirst MZA2 is a critical expansion component designed specifically for the MZS4 Zone Control Panel, allowing for the seamless integration of two additional HVAC zones. Operating on 24VAC, this zone adder utilizes plug and play connectivity to bridge additional dampers and thermostats into the existing master control logic. For contractors managing larger residential or light commercial zoning projects, the MZA2 eliminates the need for