easy to read in various lighting conditions, Saswell T21HTW-0 - -. This is a 24VAC low-voltage non-programmable thermostat for room use, Non-programmable Thermostat, Heat Pump Thermostat 24 Volt With Backlit Digital Display For Room, OPTIONAL 2 “AAA” Batteries provide continuous temperature display during power loss. 。 Detailed instructions for easy installation, Heat Pump Thermostat T21HTW-0FEATURES:。·Large LCD display with backlight, 2H/1C, Air Filter change reminder and Low Battery Indicator available. 。 Large LCD display with backlight, C-wire needed for proper installation.B and O terminals available. 。 Make comfortable temperatures to reduce energy usage. continuous backlight option。·Simultaneous heat and cool set point storage。·Display of room temperature. compressor short cycling protection.【IMPORTANT】 Currently does not support millivolt systems 。 2 Heat/1 Cool Conventional and Heat Pump. savings on annual heating and cooling costs. 。 Saswell Non-programmable Backlit Digital Display Thermostat for room24 Volt. or from 2 size “AA” alkaline batteries。·Optional temperature display of Fahrenheit or Celsius scale。·Air Filter change Indicator。·Low Battery Indicator.。·Display temperature calibration。·Intelligent Recovery Option for optimizing comfort。Package include:。Saswell T21HTW-0 Thermostat。(Jumper wire connected)。Two screws and anchors。User manualService and Support。All products come back by a 30-day guarantee. compatible with heat pump (with aux) systems, 2H/1C, Accurate temperature control of +/-1-Degree F for consistent comfort. 1 Year warranty and lifetime support. 。 。 。. set temperature and current time simultaneously。·Fan switch with ON and AUTO functions.。·Permanent user setting retention during power loss. No batteries are required。·Operates from 24VAC.
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