Honeywell Heat/1Cool - T841A1563 Premier 2 Stage Thermostat User Manual page 71

INTERCITY PRODUCTS/HEIL QUAKER/WHIRLPOOL/TEMPSTAR
Existing
Function
Terminals
or
Common
C B
Power
R
Compressor
Y
1st Stage
–
Heat
or
Aux. Heat
W2 W
Fan
G
C/O Valve
B
Heat
C/O Valve
O
Cool
or
System
X L
Monitor
or
EM. Heat
X E
Multiple Aux. W3
Heat Loads
LED Indication
X1 X2
Defrost
P
2nd Stage
–
Compressor
2nd Stage
–
Cool
Configure O/B (select models) in Installer Setup.
Both first stage heat and cool are connected to Y terminal.
Terminal is for multiple second stage loads such as contactors, sequencers,
or relays.
L terminal is powered continuously when thermostat is in Em. Ht. position.
Terminal X (C) must be connected to transformer common.
TYPICAL THERMOSTATS AND SUBBASES — HONEYWELL MODEL NUMBER (CUSTOMER PART NUMBER)
T841A1134 (HQ1147021HW)
T841A1175 (HQ1147004HW)
T841A1589 (HQ1149480HW)
T872R1172/Q672L1193
T874G1246/Q674F1212
T874R1137/Q674L1132 (HQ711597HW/711598)
Electromechanical
X X X
R R R
Y Y Y1
– W1 W1
W2 W2 W2
G G G
B B B
O O O
L
E E E
W3 W3 W3
– X2 X1 X2
– – –
– – –
– – –
T874R1673/Q674L1132 (HAXB004TW01/711598)
T874R1749/Q674F1329 (TAXB004TW01/712005)
T874R1749/Q674L1132 (TAXB004TW01/711598)
T874R1731/Q674L1132 (HQ1147909HW/711598)
T8141A1022
T8141A1030
Electronic Replacement or Upgrade
®
Chronotherm
III
C C
R R
or
Y1 Y Y
W1 W1
W2 W2
G G
B B
O O O
L L
E E
– –
X1 X2 –
P –
– –
– –
Do not remove factory-installed jumper.
Optional LED indication activated with completed circuit on X1 and
X2 terminals.
When W2 is not used, configure W2 cycle rate to NC.
LED is energized when terminal is powered.
Chronotherm
IV
C C C
R R R
Y1 Y Y1
W1 W1 W1
W2 W2 W2
G G G
or or
B O/B B B
or or
O/B O O
L L L
E E E
– – –
– – X1 X2
– – –
– – –
– – –
T8141A1048
T8141A1055
T8141A1139
T8300A1136/Q6300A1119
(HQ713669HW)
T8611G1020 (HQ713669HW)
C
R
Y1/W1
–
Aux.
G
O/B O/B
O/B O/B
L
E
–
–
–
W2
Y2
M13185
70-6627 • 69