Tag: D538

tekmar D538 digital Thermostat  Introduction The tekmarNet®4 Thermostat 538 provides operation for: One Stage Heat Features Zone Synchronization Zone Post Purge Intelligent setback (Timer 033) Scenes (Away override) Auto Heating Cycle tekmarNet® 4 communication compatible Requires 4 wires Pulse Width Modulation CSA C US is Approved for use in USA and Canada Outdoor temperature display…