Tag: T4039A Thermostat
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Honeywell T4039A Line Voltage Thermostat User Manual
Honeywell T4039A Line Voltage Thermostat INTRODUCTION T4039 Thermostats Control Line Voltage Valves of a fan coil unit in cooling, manual changeover heating-cooling, or automatic changeover heating-cooling systems. One or two valves may be controlled directly by the thermostat. The fan switch (where applicable) controls air circulation. 1-, 2-, or 3-speed manual fan control available. Positive…