TK300-15/U ISD Product The PRO programmable family of

The PRO programmable family of thermostats provides basic and simple programming with specific models for conventional and heat pump systems

Çöand all the features are accessed through an easy-to-read backlit touchscreen

They Feature Override Protection and Color-Coded Lead Wires for Primary Connections

and move on

The PA404 is a series 40 (2-wire

TK300-15/U ISD Product The PRO programmable family ofExpansion Tanks absorb hot water expansion in closed heating systems. They are equipped with butyl diaphragms to separate the air from the system water. Pre pressurized, the tank keeps fluids circulating and maintains minimum pressure.