Honeywell Heat/1Cool User Guide - Page 103

Weatherking

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WEATHERKING Electromechanical Chronotherm® III Electronic Replacement or Upgrade Chronotherm IV T841A1308 Y594R1797 Y594G1633 T8611R1000 T8T481411R11R0120802 T8T581511G11G0140721 T8T081011R11R0110406 T8T681611G12G0220802 W890P0CB8190000/2 Function Existing Terminals Common ³ X X X X C C C C C C Power R R R R R R R R R R Compressor Y 1st Stage - Heat Aux. Heat W2 Fan G C/O Valve B Heat C/O Valve O Cool System Monitor/ L System Defrost Y Y Y - - - W2 W2 W2 G G G B B B O O O ² ² ² L L L Y1 » W1 W2 ¿ G B O ¶ L Y » W1 Y1 » W1 Y » W1 Y1 » W1 Y1/W1 - W2 W2 ᕤ G B ᕤ G or · B O/B or · O O O/B W2 ᕤ G B W2 ᕤ G or · B O/B · or O O O/B ´ Aux. ᕤ G · O/B · O/B ¶ ² ¶ L L L ² ² L L Em. Heat E E E E E E E E E E LED Indication X 2nd Stage - Compressor - X2 X2 X1 X2 - - - - - - - - - X1 X2 - ´ - - W2 2nd Stage - - - Y2 - Cool - - - - Y2 ³ Terminal must be connected to the transformer common. · Configure O/B (select models) in Installer Setup. » Do not remove factory-installed jumper. ¿ To eliminate automatic fan in emergency heat mode, connect switching relay as shown on page 9. ´ When W2 is not used, configure W2 cycle rate to NC. ² LED is energized when terminal is powered. ¶ L terminal is powered continuously when thermostat is in Em. Ht. position. M13205 TYPICAL THERMOSTATS AND SUBBASES - HONEYWELL MODEL NUMBER (CUSTOMER PART NUMBER) T841A1456 (41-20796-65) T874R1830/Q674L1504 (41-20769-64) 70-6627 • 101

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70-6627
•
101
WEATHERKING
TYPICAL THERMOSTATS AND SUBBASES — HONEYWELL MODEL NUMBER (CUSTOMER PART NUMBER)
T841A1456 (41-20796-65)
T874R1830/Q674L1504 (41-20769-64)
Common
A
Power
Compressor
1st Stage
Heat
Aux. Heat
Fan
C/O Valve
Heat
C/O Valve
Cool
System Monitor/
System Defrost
Em. Heat
LED
Indication
2nd Stage
Compressor
2nd Stage
Cool
T8011R1006
T8011R1014
Function
Existing
Terminals
T841A1308
Y594R1797
Y594G1633
T8611R1000
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
Configure O/B (select models) in Installer Setup.
C
Do not remove factory-installed jumper.
D
To eliminate automatic fan in emergency heat mode, connect switching relay
as shown on page 9.
M13205
E
When W2 is not used, configure W2 cycle rate to NC.
F
LED is energized when terminal is powered.
G
L terminal is powered continuously when thermostat is in Em. Ht. position.
C
C
C
C
C
G
F
B
E
B
B
E
4
4
4
4
4
F
F
B
B
B
D
X
X
X
X
C
C
C
C
C
C
R
R
R
R
R
R
R
R
R
R
Y
Y
Y
Y
Y1
Y
Y1
Y
Y1
Y1/W1
–
–
–
–
W1
W1
W1
W1
W1
–
W2
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
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
L
L
L
L
L
L
L
L
L
E
E
E
E
E
E
E
E
E
E
X
–
X2
X2
X1
X2
–
–
–
X1
X2
–
–
–
–
–
–
–
–
–
–
W2
–
–
–
Y2
–
–
–
–
–
Y2
F
G
F
G
F
Chronotherm
IV