Honeywell T841A1464 manual

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Table of contents for the manual

  • Page 1

    MOUNTING HOLES (4) WIRING TERMINAL (UP TO 12) M2960A BACK OF DEVICE 80 70 60 50 EM. HEAT HEAT OFF COOL 80 70 60 50 AUTO ON FAN EM. HEAT AUX. HEAT CHECK FRONT OF DEVICE FAN SWITCH SYSTEM SWITCH COVER THERMOMETER SET POINT SCALE LED (UP TO THREE) T841A Heating-Cooling Heat Pump Thermostat X-XX UL INST ALLA TION INSTRUCTIONS ®U.S. Registered Trademar[...]

  • Page 2

    69-0452—8 2 T841A HEA TING-COOLING HEA T PUMP THERMOST A T OPERA TION 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 first stage cannot handle the load. This[...]

  • Page 3

    69-0452—8 3 T841A HEA TING-COOLING HEA T PUMP THERMOST A T ODT 1 EHR 1 R TD 2 R TD 1 ODT 2 R TD 3 ERH 2 RD G SYSTEM SWITCH EM. HEA T HEA T OFF COOL H2 F ALL H1 C1 F ALL H1 & C1 ANTICIP A TOR H2 ANTICIP A TOR FAN SWITCH AUTO ON COMPRESSOR CONTACTOR EM. HEAT RELAY CHANGEOVER RELAY (HEAT) AUX. HT. LED (GREEN) X W2 B R O LACO CHP M1099B 3 CHANGEO[...]

  • Page 4

    69-0452—8 4 T841A HEA TING-COOLING HEA T PUMP THERMOST A T Fig. 3. Internal schematic and typical wiring diagram for SUPER TRADELINE® T841A1316 with AUX. HEAT and EM. HEAT LEDs. Provides heat or cool changeover relay control and automatic fan in EM. HEAT mode. L1 (HOT) L2 1 POWER SUPPL Y . PR OVIDE DISCONNECT MEANS AND O VERLOAD PROTECTION AS RE[...]

  • Page 5

    69-0452—8 5 T841A HEA TING-COOLING HEA T PUMP THERMOST A T Fig. 5. Internal schematic and typical wiring diagram for TRADELINE® T841A1423 and T841A1464 (sold only in Australia) with AUX. HEAT, EM. HEAT and CHECK LEDs. Provides heat or cool changeover relay control and automatic fan in EM. HEAT mode. H2 FALL H1 FALL C1 L1 (HOT) L2 1 W3 G R W2 E L[...]

  • Page 6

    69-0452—8 6 T841A HEA TING-COOLING HEA T PUMP THERMOST A T CHECKOUT Heating Move the SYSTEM switch on the thermostat to HEAT and the FAN switch to AUTO. Move the setpoint lever to about 10 ° F (6 ° C) above the room temperature. Heating should start and the fan should run. Move the setpoint lever about 10 ° F (6 ° C) below the room temperatur[...]