Honeywell Heat/1Cool User Guide - Page 65

Electromechanical HONEYWELL SEPARATE FIRST STAGE HEAT AND COOL TERMINALS Chronotherm® III Electronic Replacement or Upgrade Chronotherm IV AVAILNAOBTLE Y594R1425 Y5Y95494G1G4174619 T8611R1000 T8T481411R11R0120802 T8T5815111G1G0140721 T8T081011R11R0110406 T8T6816111G2G0220802 W890P0CB8190000/2 Function Common ³ Existing Terminals X X X C C C C C C Power R 1st Stage Y1 Cool 1st Stage W1 Heat 2nd Stage W2 Heat R R R Y1 Y1 Y1 ¶ ¶ ¶ W1 W1 W1 W2 W2 W2 R R R Y ¶ W1 Y1 ¶ W1 Y ¶ W1 W2 W2 W2 R Y1 ¶ W1 R ¿ Y1/W1 » W2 Aux. NOT AVAILABLE Fan C/O Valve Heat G · B C/O Valve Cool · O System or · X2 L Monitor EM. Heat or Z E G G G G G G G G ´ or ´ or ´ B B B B B O/B B B O/B O/B ´ or ´ or ´ O O O O O O/B O O O/B O/B X1 L L L L L L E E E E E E E E Defrost 2nd Stage Cool - · Y2 - - P - - - - - - - - - - - - Y2 Multiple Aux. - Heat Loads ² W3 W3 - - - - - - LED Indication - 2nd Stage - Compressor X2 X1 X2 - - - - - - - - - X1 X2 - » - - W2 2nd Stage - Cool - - - - - - - Y2 ³ Terminal X (C) must be connected to transformer common. · If provided on original equipment. » When W2 is not used, configure W2 cycle rate to NC. ¿ If separate Y1 and W1 terminals are required, install R8222D1014; see page 12. ´ Select O/B (select models) in Installer Setup. ² Terminal is for multiple second stage heat loads such as contactors, sequencers, or relays. ¶ Remove factory-installed jumper for independent first stage heat and cool operation. M13187 T872A-D/Q672F1000 T872A-D/Q672F1026 TYPICAL THERMOSTATS AND SUBBASES - HONEYWELL MODEL NUMBER T872A-D/Q672F1042 T874A-D/Q674F1006 T874A-D/Q674F1048 T874R1616/Q674L1587 T872C/Q672F1075 T874A-D/Q674F1022 T874A-D/Q674F1089 T8085A/Q682B1029 T8300A/Q6300A T8300B/Q6300B 70-6627 • 63