Honeywell Heat/1Cool User Guide - Page 82

Hp16, Hp19, Hp21, Hp22 Direct Replacements

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LENNOX HP16, HP19, HP21, HP22 (DIRECT REPLACEMENTS) Electromechanical Chronotherm® III Electronic Replacement or Upgrade Chronotherm IV T841A1555 Y594R1763 Y594G1161 T8T681611G11R0100400 T8T481411R11R0120802 T8T581511G11G0140721 T8T081011R11R0110406 T8T681611G12G0220802 W890P0CB8190000/2 Existing Function Terminals Common ³ X B B B C C C C C C ² Power V VR R R R R R R R R R Compressor M 1st Stage - Heat or Y Y Y Y1 Y Y Y1 Y Y1 Y1/W1 » » » » » - - - W1 W1 W1 W1 W1 - Auxiliary Y W W W W2 W2 W2 W2 W2 Aux. Heat Fan F G G G G C/O Valve - - - - B Heat C/O Valve R O O O O Cool ¶ µ µ µ ´ System Monitor/ L F F F L Sytem Defrost ¶ Outdoor Stat/ E X2 X2 X2 E Em. Heat G G º or B B O/B or º O O O/B ´ µ L L G G º or B B O/B º or O O O/B ´ L µ L G º O/B º O/B µ L E E E E E Outdoor A Sensor LED Indication - T T T · · · · · · ¿ ¿ - - - X1 X2 - - - X1 X2 - ³ Terminal B (C or X) must be connected to transformer common. · Tape off. Thermostat replaces outdoor reset with improved zero droop performance. » Do not remove factory-installed jumper. ¿ Optional LED indication activated with completed circuit on X1 and X2 terminals. ´ L terminal is powered continuously when thermostat is in Em. Ht. position. ² If separate transformers are used, replace with one 75 Va transformer as shown on page 78. ¶ R8222B1067 Relay required to operate system monitor light (emergency heat LED) on TRADELINE replacement thermostats. See page 11. Tape off if LED indication is not desired. º Configure O/B (select models) in Installer Setup. ¾ When W2 is not used, configure W2 cycle rate to NC. µ LED is energized when terminal is powered. M13164 TYPICAL THERMOSTATS AND SUBBASES - HONEYWELL MODEL NUMBER (CUSTOMER PART NUMBER) T874C1448/Q674L1355 (24F5101/31F3201) T874C1448/Q674L1165 (24F5101/24F5901) T874R1178/Q674L1355 (24F5601/31F3201) T874R1178/Q674L1165 (24F5601/24F5901) 70-6627 • 80

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70-6627
•
80
LENNOX
HP16, HP19, HP21, HP22 (DIRECT REPLACEMENTS)
TYPICAL THERMOSTATS AND SUBBASES — HONEYWELL MODEL NUMBER (CUSTOMER PART NUMBER)
T874C1448/Q674L1355 (24F5101/31F3201)
T874C1448/Q674L1165 (24F5101/24F5901)
T874R1178/Q674L1355 (24F5601/31F3201)
T874R1178/Q674L1165 (24F5601/24F5901)
T8011R1006
T8011R1014
Function
Existing
Terminals
T841A1555
Y594R1763
Y594G1161
T8611R1000
T8611G1004
T8411R1002
T8411R1028
PC8900/
W8900B1002
Electromechanical
Chronotherm
®
III
Electronic Replacement or Upgrade
A
Terminal B (C or X) must be connected to 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 activated with completed circuit on X1 and X2
terminals.
E
L terminal is powered continuously when thermostat is in Em. Ht. position.
Common
A
Power
Compressor
1st Stage
Heat
Auxiliary
Heat
Fan
C/O Valve
Heat
C/O Valve
Cool
System Monitor/
Sytem Defrost
G
Outdoor Stat/
Em. Heat
Outdoor
Sensor
LED
Indication
M13164
F
If separate transformers are used, replace with one 75 Va transformer as
shown on page 78.
G
R8222B1067 Relay required to operate system monitor light (emergency
heat LED) on TRADELINE replacement thermostats. See page 11. Tape
off if LED indication is not desired.
H
Configure O/B (select models) in Installer Setup.
I
When W2 is not used, configure W2 cycle rate to NC.
J
LED is energized when terminal is powered.
C
C
C
C
H
H
H
H
H
H
C
B
D
B
B
B
B
J
B
J
E
J
E
E
J
G
T8511G1021
T8511G1047
T8611G2002
T8611G2028
F
X
B
B
B
C
C
C
C
C
C
V
V
R
R
R
R
R
R
R
R
R
R
M
Y
Y
Y
Y1
or
Y
Y
Y1
Y
Y1
Y1/W1
–
–
–
–
W1
W1
W1
W1
W1
–
Y
W
W
W
W2
W2
W2
W2
W2
Aux.
F
G
G
G
G
G
G
G
G
G
–
–
–
–
B
B
B
or
O/B
B
B
or
O/B
O/B
R
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
E
X2
X2
X2
E
E
E
E
E
E
A
T
T
T
–
–
–
–
X1
X2
–
–
–
X1
X2
–
J
J
Chronotherm
IV
D