Perfect for my heat pump system. Very easy install. I recommend you watch a video on YouTube specifically for this tstat.
I wired it to receive 24V from the A/ C unit so as to NOT need the batteries ( Blue wire to " C" terminal for my application).
Honeywell TH2210DH1000 Horizontal PRODay Programmable Heat Pump Thermostat - Backlit, 2H/ 1C, Dual Powered - Programmable Household Thermostats - Honeywell Round Heat/ Cool Thermostat offers time- tested, precise temperature control in a simple, mercury- free thermostat. It has non- programmable mechanical.
Heat Pump Thermostat Wiring Chart Diagram - HVAC - The following graphics are meant as a guide only. Always follow manufacturers instructions for both the thermostat and the HVAC system.
AQUASTAT L8124A Heating System pdf manual download. Also for: Aquastat l8124e, Aquastat l8124c, Aquastat l8124l, Aquastat ee downloadable copies of installation and service manuals for heating, heat pump, and air conditioning equipment - hard to find manuals for older or discontinued air conditioners, furnaces, heat pumps, boilers, Links to free copies of Lennox Equipment Installation, Service, & Owners Manuals for Lennox furnaces, Lennox heat pumps, Lennox Air Conditioners. Heaters, Furnaces, Air Conditioners, Furnaces, Boilers: parts, manuals, help, Brands J- O Free Furnace, Heat Pump, Air Conditioner Installation & Service Manuals.