Honeywell Heat/1Cool User Guide - Page 98

Existing, Terminals, AVAILABLE, T874C1018, PC8900, NOT AVAILABLE

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Page 98 highlights

SQUARE D/SUN DIAL Electromechanical Chronotherm® III Electronic Replacement or Upgrade Chronotherm IV AVAILNAOBTLE AVAILNAOBTLE Q6T78474F1C0120218/ T8611R1000 T8T481411R11R0120802 T8T5815111G1G0140721 T8T081011R11R0110406 T8T6816111G2G0220802 W890P0CB8190000/2 Function Common · Existing Terminals or or X X1 C X1 C C C C C C Power Compressor R or Y Y1 1st Stage W1 Heat Aux. Heat W2 R Y1 ³ W1 R or Y1 Y ³ W1 W2 W2 R Y ³ W1 R Y1 ³ W1 R Y ³ W1 W2 W2 W2 R Y1 ³ W1 R » Y1/W1 - ´ W2 Aux. NOT AVAILABLE NOT AVAILABLE Fan G C/O Valve B Heat C/O Valve O Cool System Monitor/ System Defrost Em. Heat L or K E LED Indication X2 2nd Stage - Compressor G G G G G G G or or B B B B O/B B B O/B O/B or or O O O O O/B O O O/B O/B ² X2 ¶ L ¶ ² ¶ L L L ² ² L L E E X2 - - E E - - E E E ¿ X1 X2 - - - W2 ´ 2nd Stage Y2 Y2 Y2 Cool ³ Remove factory-installed Y1 (Y) to W1 jumper. · Terminal must be connected to the transformer common. » If separate Y1 and W1 terminals are required, install R8222D1014; see page 12. ¿ Optional LED indication activated with completed circuit on X1 and X2 terminals. ´ 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. M13202 TYPICAL THERMOSTATS AND SUBBASES - HONEYWELL MODEL NUMBER (CUSTOMER PART NUMBER) T872C1525/Q672F1182 (HCD-2/HCB-1) T874C1224/Q674F1071 (63600-002-09/63600-002-11) 70-6627 • 96

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70-6627
•
96
SQUARE D/SUN DIAL
TYPICAL THERMOSTATS AND SUBBASES — HONEYWELL MODEL NUMBER (CUSTOMER PART NUMBER)
T872C1525/Q672F1182
(HCD-2/HCB-1)
T874C1224/Q674F1071
(63600-002-09/63600-002-11)
Common
B
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
NOT
AVAILABLE
NOT
AVAILABLE
T874C1018/
Q674F1022
T8611R1000
T8411R1002
T8411R1028
T8511G1021
T8511G1047
T8611G2002
T8611G2028
PC8900/
W8900B1002
Electromechanical
Chronotherm
®
III
Electronic Replacement or Upgrade
A
Remove factory-installed Y1 (Y) to W1 jumper.
B
Terminal must be connected to the transformer common.
C
If separate Y1 and W1 terminals are required, install R8222D1014; see page 12.
D
Optional LED indication activated with completed circuit on X1 and
X2 terminals.
M13202
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.
A
A
A
A
A
A
F
G
F
E
G
F
E
D
C
G
F
X
or
X1
or
C
X1
C
C
C
C
C
C
R
R
R
R
R
R
R
R
Y
or
Y1
Y1
Y1
or
Y
Y
Y1
Y
Y1
Y1/W1
W1
W1
W1
W1
W1
W1
W1
–
W2
W2
W2
W2
W2
W2
W2
Aux.
G
G
G
G
G
G
G
G
B
B
B
B
B
or
O/B
B
B
or
O/B
O/B
O
O
O
O
O
or
O/B
O
O
or
O/B
O/B
L
X2
L
L
L
L
L
L
K
or
E
E
E
E
E
E
E
E
X2
X2
X1
X2
–
–
–
–
–
–
–
–
W2
Y2
Y2
Y2
NOT AVAILABLE
NOT AVAILABLE
Chronotherm
IV