Honeywell Heat/1Cool User Guide - Page 99

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Electromechanical TRANE/AMERICAN STANDARD DIRECT TRADE REPLACEMENTS Chronotherm® III Electronic Replacement or Upgrade Chronotherm IV T841A1555 Y594R1763 Y594G1161 T8T681611G11R0100400 T8T481411R11R0120802 T8T5815111G1G0140721 T8T081011R11R0110406 T8T6816111G2G0220802 W890P0CB8190000/2 Function Existing Terminals Common ³ 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 or Y Y1 Y Y Y1 Y Y1 Y1/W1 » » » » » 1st Stage - - - - W1 Heat W1 W1 W1 W1 - ² Aux. Heat W or W1 W W W W2 W2 W2 W2 W2 Aux. Fan G G G G C/O Valve - - - - Heat C/O Valve O O O O Cool System Monitor/ F System Defrost ¶ ¶ ¶ F F F Outdoor or T A T T T Sensor » G B O º L · G G or ´ B B O/B or ´ O O O/B º ¶ L L G G or ´ B B O/B or ´ O O O/B º ¶ L L G ´ O/B ´ O/B ¶ L · · · · · Outdoor Stat X2 X2 X2 X2 E E E LED Indication - - - - X1 X2 ¿ - - 2nd Stage - - - - - - - Compressor E E E - X1 X2 ¿ - ² - - W2 2nd Stage - - - - - - - - - Y2 Cool ³ Terminal must be connected to the transformer common. · Tape off. Thermostat replaces outdoor reset with improved zero droop performance. » Do not remove factory-installed jumper. ¿ Optional LED indication with completed circuit on X1 and X2 terminals. ´ Configure O/B (select models) in Installer Setup. ² When W2 is not used, configure W2 cycle rate to NC. ¶ LED is energized when terminal is powered. º L terminal is powered continuously when thermostat is in Em. Ht. position. M13225 TYPICAL THERMOSTATS AND SUBBASES - HONEYWELL MODEL NUMBER (CUSTOMER PART NUMBER) T841A1407 (ASYSTAT652) T874R1939 (ASYSTAT-651A)/Q674L1801 (THT1225) T841A1530 (ASYSTAT652A) T8141A1014 T872G1059/Q672J1039 T8141A1071 T872R1057/Q672L1037 T8300A1128/Q6300A1101 (BAY28X194/BAY28X195) T874G1204/Q674J1043 T8611G1038 (THT-0603) T874G1675/Q674J1142 (ASYSTAT650/WY28X0250) T8611G1111 (TAYSTAT501) T874R1053/Q674L1140 T8611R1091 T874R1426/Q674L1496 (BAYSTAT339/WY28X0112) T8611R1109 (THT-0602) T874R1657/Q674L1611 (ASYSTAT651/WY28X235) T8611R1117 (ASYSTAT700) 70-6627 • 97

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70-6627
•
97
TRANE/AMERICAN STANDARD
DIRECT TRADE REPLACEMENTS
Common
A
Power
Compressor
1st Stage
Heat
Aux. Heat
Fan
C/O Valve
Heat
C/O Valve
Cool
System Monitor/
System Defrost
Outdoor
Sensor
C
Outdoor Stat
LED
Indication
2nd Stage
Compressor
2nd Stage
Cool
T8011R1006
T8011R1014
Function
Existing
Terminals
T841A1555
Y594R1763
Y594G1161
T8611R1000
T8611G1004
T8411R1002
T8411R1028
T8511G1021
T8511G1047
T8611G2002
T8611G2028
PC8900/
W8900B1002
Electromechanical
Chronotherm
®
III
Electronic Replacement or Upgrade
A
Terminal must be connected to the transformer common.
B
Tape off. Thermostat replaces outdoor reset with improved zero droop
performance.
C
Do not remove factory-installed jumper.
D
Optional LED indication with completed circuit on X1 and X2 terminals.
M13225
E
Configure O/B (select models) in Installer Setup.
F
When W2 is not used, configure W2 cycle rate to NC.
G
LED is energized when terminal is powered.
H
L terminal is powered continuously when thermostat is in Em. Ht. position.
B
B
B
B
B
G
F
B
F
B
B
B
B
C
C
C
C
C
C
R
R
R
R
R
R
R
R
R
R
Y
Y
Y
Y
Y1
or
Y
Y
Y1
Y
Y1
Y1/W1
–
–
–
–
W1
W1
W1
W1
W1
–
W
or
W1
W
W
W
W2
W2
W2
W2
W2
Aux.
G
G
G
G
G
G
G
G
G
G
–
–
–
–
B
B
B
or
O/B
B
B
or
O/B
O/B
O
O
O
O
O
O
O
or
O/B
O
O
or
O/B
O/B
F
F
F
F
L
L
L
L
L
L
T
or
A
T
T
T
X2
X2
X2
X2
E
E
E
E
E
E
–
–
–
–
X1
X2
–
–
–
X1
X2
–
–
–
–
–
–
–
–
–
–
W2
–
–
–
–
–
–
–
–
–
Y2
C
C
C
C
C
G
G
H
D
D
G
G
H
G
H
E
E
E
E
E
E
Chronotherm
IV
TYPICAL THERMOSTATS AND SUBBASES — HONEYWELL MODEL NUMBER (CUSTOMER PART NUMBER)
T841A1407 (ASYSTAT652)
T841A1530 (ASYSTAT652A)
T872G1059/Q672J1039
T872R1057/Q672L1037
T874G1204/Q674J1043
T874G1675/Q674J1142 (ASYSTAT650/WY28X0250)
T874R1053/Q674L1140
T874R1426/Q674L1496 (BAYSTAT339/WY28X0112)
T874R1657/Q674L1611 (ASYSTAT651/WY28X235)
T874R1939 (ASYSTAT-651A)/Q674L1801 (THT1225)
T8141A1014
T8141A1071
T8300A1128/Q6300A1101 (BAY28X194/BAY28X195)
T8611G1038 (THT-0603)
T8611G1111 (TAYSTAT501)
T8611R1091
T8611R1109 (THT-0602)
T8611R1117 (ASYSTAT700)