Tag: D540

tekmar D540 digital Thermostat Introduction The tekmarNet®4 Thermostat 540 provides operation for: One Stage Heat One Stage Cool One Fan Features Zone Synchronization Zone Post Purge Intelligent setback (Timer 033) Scenes (Away override) Auto Heating Cycle Cooling Interlock tekmarNet® 4 communication compatible Requires 7 wires One-stage heat, cool, and fan Pulse Width Modulation CSA C…