Honeywell Heat/1Cool User Guide - Page 43

B.d.p. Bryant-day/night-payne

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B.D.P. (BRYANT-DAY/NIGHT-PAYNE) Electromechanical Chronotherm® III Electronic Replacement or Upgrade Chronotherm IV T841A1712 Y594R1425 Y5Y9549G41G4174619 T8T681611G11R0100400 T8T481411R11R0120802 T8T581511G11G0140721 T8T081011R11R0110406 T8T681611G12G0220802 W890P0CB8190000/2 Existing Function Terminals Common ² C1 or C X X1 Power R R Compressor W1 or Y Y1 1st Stg. Heat - - Aux. Heat W2 W2 X R Y ¶ W1 W2 X R Y1 ¶ W1 W2 C R or Y1 Y ¶ W1 W2 C R Y ¶ W1 W2 C R Y1 ¶ W1 W2 C R Y ¶ W1 W2 C R Y1 ¶ W1 W2 C R Y1/W1 - · Aux. Fan G G C/O Valve B B Heat C/O Valve Y1 or O O Cool System Monitor/ L or F System Defrost G G B B O O ¸ L G G G G G G ³ ³ ³ B B B or O/B B B or O/B O/B or ³ ³ or ³ O O O O/B O O O/B O/B Ƹ Ƹ ¸ Ƹ ¸ ¸ L L L L L L EM. Heat X or E E » Multiple Aux. W3 W3 Heat Loads ¿ ´ Defrost P - LED Indication X - E E W3 W3 - - X2 ¾ X1 X2 ¹ 2nd Stage - Compressor - - - ³ Configure O/B (select models) in Installer Setup. · When W2 is not used, configure W2 cycle rate to NC. » If provided on original equipment. ¿ Terminal is for multiple second stage heating loads such as contactors, sequencers, or relays. ´ Model 545 typical. P terminal provided on T8611R1000 only. ² Terminal X (C, X1, C1) must be connected to transformer common. ¶ Do not remove factory-installed jumper. E E E E E E µ µ µ µ µ µ ´ P - - - - - X1 X2 º - - ¹ - X1 X2 - · - - - - - W2 º Optional CHECK LED on T8611G1004. See Fig. 26. ¾ Field-installed X2 to X jumper (provided). µ If multiple auxiliary heat loads are used, connect to W2 (Aux W8900B) terminal. ¸ LED is energized when terminal is powered. ¹ Optional Check LED activated with completed circuit on X1 and X2 terminals. Ƹ L terminal is powered continuously when thermostat is in Em. Ht. position. M13146 TYPICAL THERMOSTATS AND SUBBASES - HONEYWELL MODEL NUMBER (CUSTOMER PART NUMBER) T872G1166/Q672F1125 T874J1010/Q674J1084 (34427DP124/P272-2471/34427DP126,P272-1879) T872G1174/Q672F1125 T874J1010/Q674L1371 (34427DP124/P272-2471/34427DP125,P272-1878) T874G1261/Q674F1253 T874R1004/Q674B1042 T874G1451 (HH641502)/Q674F1212 T874R1335 (HH641501)/Q674L1405 70-6627 • 41

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70-6627
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41
B.D.P. (BRYANT-DAY/NIGHT-PAYNE)
TYPICAL THERMOSTATS AND SUBBASES — HONEYWELL MODEL NUMBER (CUSTOMER PART NUMBER)
T872G1166/Q672F1125
T872G1174/Q672F1125
T874G1261/Q674F1253
T874G1451 (HH641502)/Q674F1212
T874J1010/Q674J1084 (34427DP124/P272-2471/34427DP126,P272-1879)
T874J1010/Q674L1371 (34427DP124/P272-2471/34427DP125,P272-1878)
T874R1004/Q674B1042
T874R1335 (HH641501)/Q674L1405
T8011R1006
T8011R1014
Function
Existing
Terminals
T841A1712
T8611R1000
T8611G1004
T8411R1002
T8411R1028
T8511G1021
T8511G1047
T8611G2002
T8611G2028
PC8900/
W8900B1002
Electromechanical
Chronotherm
®
III
Electronic Replacement or Upgrade
Common
F
Power
Compressor
1st Stg. Heat
Aux. Heat
Fan
C/O Valve
Heat
C/O Valve
Cool
System Monitor/
System Defrost
EM. Heat
Multiple Aux.
Heat Loads
D
Defrost
LED
Indication
2nd Stage
Compressor
M13146
M
A
K
J
G
A
L
G
G
G
G
G
G
A
A
C
E
A
A
A
Configure O/B (select models) in Installer Setup.
B
When W2 is not used, configure W2 cycle rate to NC.
C
If provided on original equipment.
D
Terminal is for multiple second stage heating loads such as contactors,
sequencers, or relays.
E
Model 545 typical. P terminal provided on T8611R1000 only.
F
Terminal X (C, X1, C1) must be connected to transformer common.
G
Do not remove factory-installed jumper.
B
H
H
Optional CHECK LED on T8611G1004. See Fig. 26.
I
Field-installed X2 to X jumper (provided).
J
If multiple auxiliary heat loads are used, connect to W2 (Aux W8900B)
terminal.
K
LED is energized when terminal is powered.
L
Optional Check
LED
activated with completed circuit on
X1
and
X2
terminals.
M
L terminal is powered continuously when thermostat is in Em. Ht. position.
X1
M
L
I
K
E
J
J
J
J
J
K
K
M
B
Chronotherm
IV
C1
or
C
X
X
X
C
C
C
C
C
C
R
R
R
R
R
R
R
R
R
R
W1
or
Y
Y1
Y
Y1
Y1
or
Y
Y
Y1
Y
Y1
Y1/W1
–
–
W1
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
Y1 or
O
O
O
O
O
O
O
or
O/B
O
O
or
O/B
O/B
L
or
F
L
L
L
L
L
L
L
X
or
E
E
E
E
E
E
E
E
E
E
W3
W3
W3
W3
P
–
–
–
P
–
–
–
–
–
X
–
X2
X1
X2
X1
X2
–
–
–
X1
X2
–
–
–
–
–
–
–
–
–
–
W2
Y594R1425
Y594G1419
Y594G1476