For altitudes exceeding this

Can I use this board for all Carrier heat pump models

When the evaporator coil temperature drops below its set point

Under power

Constructed from high-quality brass with a 300 psig static pressure rating

Schneider Electric (Barber Colman) AV-394 Linkage 30067439-890 For altitudes exceeding thisThe Schneider Electric AV 394 Linkage Kit is a high performance field assembly solution specifically engineered for Barber Colman gear train actuators. This complete linkage kit is used to interface TAC gear train actuators with VB 9xxx series valve bodies, particularly sizing between 1 1 2" and 2". Built for heavy duty commercial HVAC applications, the unit provides a robust 300 lb stem force, ensuring positive close off and precise modulation in