Honeywell Heat/1Cool User Guide - Page 95

TA2060

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Electromechanical Chronotherm® III SECO TA2060 Electronic Replacement or Upgrade Chronotherm IV T841A1555 Y594R1763 Y594G1161 T8T6816111G1R0100400 T8T481411R11R0120802 T8T5815111G1G0140721 T8T081011R11R0110406 T8T6816111G2G0220802 W890P0CB8190000/2 Function Existing Terminals Common ³ X B B B C C C C C C Power R Compressor Y 1st Stage - Heat Aux. Heat W2 R R R R R R R R R or Y Y Y Y1 Y Y Y1 Y Y1 Y1/W1 » » » » » - - - W1 W1 W1 W1 W1 - ¶ W W W W2 W2 W2 W2 W2 Aux. Fan G C/O Valve - Heat C/O Valve O Cool System Monitor/ L System Defrost Outdoor W3 Thermistor/ Sensor G G G - - - O º F ² T O º F ² T O º F ² T G B O ¾ L · G G ´ or B B O/B ´ or O O O/B ¾ º L L G G ´ or B B O/B ´ or O O O/B ¾ º L L G ´ O/B ´ O/B º L · · · · · Em. Heat E LED Indication - 2nd Stage - Compressor X2 X2 X2 E E E - - - X1 X2 ¿ - - - - - - - - E E E - X1 X2 ᕤ - - - W2 ¶ 2nd Stage - 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. - - - - - Y2 ´ Configure O/B (select models) in Installer Setup. ² Replace existing thermistor with Honeywell C815A1005. ¶ When W2 is not used, configure W2 cycle rate to NC. º LED is energized when terminal is powered. ¾ L terminal is powered continuously when thermostat is in Em. Ht. position. M13199 70-6627 • 93

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70-6627
•
93
SECO
TA2060
Common
A
Power
Compressor
1st Stage
Heat
Aux. Heat
Fan
C/O Valve
Heat
C/O Valve
Cool
System Monitor/
System Defrost
Outdoor
Thermistor/
Sensor
Em. Heat
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.
M13199
E
Configure O/B (select models) in Installer Setup.
F
Replace existing thermistor with Honeywell C815A1005.
G
When W2 is not used, configure W2 cycle rate to NC.
H
LED is energized when terminal is powered.
I
L terminal is powered continuously when thermostat is in Em. Ht. position.
E
E
E
C
C
C
C
C
E
E
E
F
I
4
H
B
B
B
B
B
B
D
F
F
G
H
H
H
I
I
G
H
H
X
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
–
W2
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
L
F
F
F
L
L
L
L
L
L
W3
T
T
T
E
X2
X2
X2
E
E
E
E
E
E
–
–
–
–
X1
X2
–
–
–
X1
X2
–
–
–
–
–
–
–
–
–
–
W2
–
–
–
–
–
–
–
–
–
Y2
Chronotherm
IV