Honeywell T841A1308 - Manuals

69-0452—8 2 T841A HEATING-COOLING HEAT PUMP THERMOSTAT OPERATION The stages of heat make sequentially as the temperature drops. Make refers to the mercury switch initiating a call for heat or cool. There is about 1 ° F (0.6 ° C) between stages so the second stage (auxiliary heat) makes only when the...

69-0452—8 3 T841A HEATING-COOLING HEAT PUMP THERMOSTAT ODT 1 EHR 1 RTD 2 RTD 1 ODT 2 RTD 3 ERH 2 RD G SYSTEMSWITCH EM. HEAT HEAT OFF COOL H2 FALL H1 C1 FALL H1 & C1ANTICIPATOR H2 ANTICIPATOR FAN SWITCH AUTO ON COMPRESSORCONTACTOR EM. HEATRELAY CHANGEOVERRELAY (HEAT) AUX. HT. LED (GREEN) X W2 B R...

69-0452—8 6 T841A HEATING-COOLING HEAT PUMP THERMOSTAT CHECKOUT Heating Move the SYSTEM switch on the thermostat to HEAT andthe FAN switch to AUTO. Move the setpoint lever to about10 ° F (6 ° C) above the room temperature. Heating should start and the fan should run. Move the setpoint lever about10 ...