Honeywell Heat/1Cool User Guide - Page 60

Con O/B select models in Installer Setup.

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GENERAL ELECTRIC Electromechanical Chronotherm® III Electronic Replacement or Upgrade Chronotherm IV T841A1712 Y594R1425 Y5Y9549G41G4174619 T8T6816111G1R0100400 T8T481411R11R0120802 T8T581511G11G0140721 T8T081011R11R0110406 T8T681611G12G0220802 W890P0CB8190000/2 Function Existing Terminals Common · or C B X X X C C C C C C Power R R Compressor Y Y 1st Stage - - Heat Aux. Heat W1 or W W2 R Y1 ´ W1 R Y1 ´ W1 R Y1 or Y ´ W1 W2 W2 W2 R Y ´ W1 R Y1 ´ W1 R Y ´ W1 W2 W2 W2 R R Y1 ´ W1 Y1/W1 - µ W2 Aux. Fan G G G G G G G G G G C/O Valve - B B B B ¾ or B B O/B B ¾ or ¾ B O/B O/B Heat C/O Valve O O O O O ¾ or O O O/B O ¾ or O O/B ¾ O/B Cool System Monitor/ F or L System Defrost L¸ ¸ X1 ¹ L ¹ ¸ ¹ ¸ ¸ L L L L L EM. Heat - - - - - - - - - - Outdoor T ³ ³ ³ » » » » » » Sensor or Outdoor E X2 E E E E E E E E E Thermostat Defrost Control - - - - P - - - - - Multiple Aux. W2 W3 W3 W3 º º º º º º Heat Loads ¿ LED Indication - - X2 ¶ X2 ¶ X1 X2 ² - - - X1 X2 - µ 2nd Stage - - - - - - - - - W2 Compressor ³ Tape off. Outdoor reset not provided with TRADELINE® replacement thermostats. · Terminal X (C) must be connected to transformer common. » Tape off. Electronic thermostat replaces outdoor reset with improved zero droop performance. ¿ Terminal is for multiple auxiliary heat loads such as contactors, sequencers, or relays. ´ Do not remove factory-installed jumper. ² Optional CHECK LED on T8611G1004. See Fig. 26. ¶ Field-installed X2 to X jumper (provided). º If multiple auxiliary heat loads are used, connect to W2 (Aux W8900B) terminal. ¾ Configure O/B (select models) in Installer Setup. µ When W2 is not used, configure W2 cycle rate to NC. ¸ LED is energized when terminal is powered. ¹ L terminal is powered continuously when thermostat is in Em. Ht. position. M13181 70-6627 • 58

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70-6627
•
58
GENERAL ELECTRIC
Common
B
Power
Compressor
1st Stage
Heat
Aux. Heat
Fan
C/O Valve
Heat
C/O Valve
Cool
System Monitor/
System Defrost
EM. Heat
Outdoor
Sensor
Outdoor
Thermostat
Defrost Control
Multiple Aux.
Heat Loads
D
LED
Indication
2nd Stage
Compressor
T8011R1006
T8011R1014
Function
Existing
Terminals
T841A1712
T8611R1000
T8611G1004
T8411R1002
T8411R1028
PC8900/
W8900B1002
Electromechanical
Chronotherm
®
III
Electronic Replacement or Upgrade
A
Tape off. Outdoor reset not provided with TRADELINE® replacement
thermostats.
B
Terminal X (C) must be connected to transformer common.
C
Tape off. Electronic thermostat replaces outdoor reset with improved zero droop
performance.
D
Terminal is for multiple auxiliary heat loads such as contactors, sequencers,
or relays.
E
Do not remove factory-installed jumper.
M13181
F
Optional CHECK LED on T8611G1004. See Fig. 26.
G
Field-installed X2 to X jumper (provided).
H
If multiple auxiliary heat loads are used, connect to W2 (Aux W8900B)
terminal.
I
Configure O/B (select models) in Installer Setup.
J
When W2 is not used, configure W2 cycle rate to NC.
K
LED is energized when terminal is powered.
L
L terminal is powered continuously when thermostat is in Em. Ht. position.
E
I
I
I
E
E
E
E
I
I
I
C
C
C
C
C
C
F
J
A
A
A
G
G
E
E
C
or
B
X
X
X
C
C
C
C
C
C
R
R
R
R
R
R
R
R
R
R
Y
Y
Y1
Y1
Y1
or
Y
Y
Y1
Y
Y1
Y1/W1
–
–
W1
W1
W1
W1
W1
W1
W1
–
W1
or
W
W2
W2
W2
W2
W2
W2
W2
W2
Aux.
G
G
G
G
G
G
G
G
G
G
–
B
B
B
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
or
L
L
X1
L
L
L
L
L
L
–
–
–
–
–
–
–
–
–
–
T
E
or
X2
E
E
E
E
E
E
E
E
E
–
–
–
–
P
–
–
–
–
–
W2
W3
W3
W3
–
–
X2
X2
X1
X2
–
–
–
X1
X2
–
–
–
–
–
–
–
–
–
–
W2
H
H
H
H
H
T8511G1021
T8511G1047
T8611G2002
T8611G2028
J
H
L
K
L
K
L
K
K
K
Chronotherm
IV
Y594R1425
Y594G1419
Y594G1476