WATTS Tekmar 538 Net 4 Thermostat

WATTS Tekmar 528 Net 4 Thermostat New and Sealed old stock. $96.95 list price The tekmarNet® 4 Thermostat 538 is designed to operate mechanical equipment to deliver heat to a single zone within a hydronic heating system. It can be used with any terminal unit type, including radiant floor, baseboard, and fan coils. It is capable of controlling a zone valve or zone pump through a tekmarNet® 4 Wiring Center, Zone Manager, or directly from the thermostat in order to maintain air and an auxiliary temperature. That is typically a floor temperature, but could also be a remote air sensor. An optional Adaptor Plate 007 is available which allows the thermostat to be installed onto a single gang electrical box. Replacement options: 532 or 552 Features Auto heating cycle, tekmarNet® 4 communication compatible Intelligent setback (with tekmar 033 timer), one touch overrides (with optional user switch) Requires 4 wires, pulse width modulation Zone synchronization, zone post purge