Honeywell Heat/1Cool User Guide - Page 114
Direct Replacements Outdoor Thermistor Models B2ch, B2ps, E1cs, E1eb, E1hb, E2ch
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YORK/BORG WARNER DIRECT REPLACEMENTS (OUTDOOR THERMISTOR MODELS) B2CH, B2PS, E1CS, E1EB, E1HB, E2CH Electromechanical Chronotherm® III Electronic Replacement or Upgrade Chronotherm IV T841A1555 Y594R1763 Y594G1161 T8611R1000 T8T481411R11R0120802 T8T581511G11G0140721 T8T081011R11R0110406 T8T681611G12G0220802 W890P0CB8190000/2 Function Existing Terminals Common » B B B B C C C C C C Power R R R R R R R R R R Compressor Y Y Y Y 1st Stage - - - - Heat Aux. Heat W W W W Y1 ´ W1 W2 Y ´ W1 Y1 ´ W1 Y ´ W1 W2 W2 W2 Y1 ´ W1 Y1/W1 - ² W2 Aux. Fan G G G G G G G G G G ³ C/O Valve H - - - B ¿ or B B O/B B ¿ or B O/B ¿ O/B Heat C/O Valve O O O O O ¿ or O O O/B O ¿ or O O/B ¿ O/B Cool ³ System Monitor/ F F F F L L L L L L System Defrost Em. Heat X X2 X2 X2 E E E E E E Outdoor T T T T Thermistor · · · · · ³ F and H terminals are not available on all models. · Tape off. Thermostat replaces outdoor reset models with improved zero droop performance. » Terminal must be connected to the transformer common. ¿ Configure O/B (select models) in Installer Setup. ´ Do not remove factory-installed jumper. ² Configure W2 cycle rate to NC. · M13216 TYPICAL THERMOSTATS AND SUBBASES - HONEYWELL MODEL NUMBER (CUSTOMER PART NUMBER) T872G1042/Q672J1021 T874R1145/Q674L1272 T874R1169/Q674L1330 T874R1251/Q674L1272 (2TH11702324) T874R1327/Q674L1272 (6TH11702224) 70-6627 • 112