Honeywell Heat/1Cool User Guide - Page 91
Phillips Energy
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PHILLIPS ENERGY Electromechanical Chronotherm® III Electronic Replacement or Upgrade Chronotherm IV T841A1712 Y594R1425 Y5Y95494G1G4174619 T8T6816111G1R0100400 T8T481411R11R0120802 T8T5815111G1G0140721 T8T081011R11R0110406 T8T6816111G2G0220802 W890P0CB8190000/2 Function Existing Terminals Common ¿ C X X X C C C C C C Power R R º Compressor Y1 Y ² 1st Stage W1 - Heat Aux. Heat W2 W2 R R R or Y Y1 Y1 Y ² ² ² W1 W1 W1 W2 W2 W2 R Y ² W1 R Y1 ² W1 R Y ² W1 W2 W2 W2 R R Y1 ² W1 Y1/W1 - · W2 Aux. Fan G C/O Valve B Heat C/O Valve O Cool System Monitor/ L System Defrost G G G B B B O O O º L G G G G G G ᕡ or ᕡ or ᕡ B B B O/B B B O/B O/B ᕡ or ᕡ or ᕡ O O O O/B O O O/B O/B ¾ ¾ º ¾ º º L L L L L L Em. Heat E E E E E E E E E E Multiple Aux. Heat Loads » - LED Indication X2 2nd Stage - Compressor W3 W3 W3 ´ ´ ´ - X2 ¶ X1 X2 µ X1 X2 µ - - - - - - - - ´ ´ ´ - X1 X2 µ - - - W2 · 2nd Stage - - - - - - - - - Y2 Cool ³ Configure O/B (select models) in Installer Setup. · When W2 is not used, configure W2 cycle rate to NC. » Terminal is for multiple auxiliary heat loads such as contactors, sequencers, or relays. ¿ Terminal must be connected to the transformer common. ´ If multiple auxiliary heat loads are used, connect to W2 (Aux W8900B) terminal. ² Do not remove factory-installed jumper. ¶ Field-installed X2 to X jumper. º LED is energized when terminal is powered. ¾ L terminal is powered continuously when thermostat is in Em. Ht. position. µ Optional LED indication activated with completed circuit on X1 and X2 terminals. M13197 TYPICAL THERMOSTATS AND SUBBASES - HONEYWELL MODEL NUMBER T8611R1174 70-6627 • 89