Laars Heating Systems RTXD7109 Replace Kit 321894-709 Is the VAL9931 a direct

Is the VAL9931 a direct replacement for mechanical TXVs

the high limit switch ensures a rapid and reliable electrical break to prevent heat exchanger damage and hazardous operating conditions

Field-Proven Reliability: Rated for 90 PSI with a 9

a light almond full-window cover

Laars Heating Systems RTXD7109 Replace Kit 321894-709 Is the VAL9931 a directThe Laars Heating Systems RTXD7109 Replace Kit is a direct OEM solution for restoring the Neotherm Wave 3 4A control architecture. Engineered for high efficiency condensing boilers and volume water heaters, this Neotherm Module Replace Kit serves as the central processing unit for system modulation and safety logic. As a veteran grade HVAC replacement part, it handles critical functions including integrated PID temperature control, direct spark