Honeywell Heat/1Cool - T841A1563 Premier 2 Stage Thermostat User Manual page 40

ARMSTRONG/AIR-EASE
Existing
Terminals
Function
or
Common
X C
Power
R
Compressor
Y
1st Stg. Heat
W1
Aux. Heat
W2
Fan
G
C/O Valve
B
Heat
C/O Valve
O
Cool
System Monitor/
L
System Defrost
EM. Heat
E
Multiple Aux.
W3
Heat Loads
LED Indication
–
Defrost
P
2nd Stage
–
Compressor
Configure O/B (select models) in Installer Setup.
LED is energized when terminal is powered.
L terminal is powered continuously when thermostat is in Em. Ht. position.
Terminal is for multiple second stage loads such as contactors,
sequencers, or relays.
Terminal X or C must be connected to transformer common.
Do not remove factory-installed jumper.
70-6627 • 38
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 X1
E E E
W3 W3 W3
– X2 X2
– – –
– – –
TYPICAL THERMOSTATS AND SUBBASES — HONEYWELL MODEL NUMBER
T8611R1182
Electronic Replacement or Upgrade
®
Chronotherm
III
C C
R R
or
Y1 Y Y
W1 W1
W2 W2
G G
B B B
O O O
L L
E E
–
X1 X2 –
P –
– –
When W2 is not used, configure W2 cycle rate to NC.
Field-installed X2 to X jumper (provided).
Optional CHECK LED on T8611G1004. See Fig. 26.
If separate Y1 and W1 terminals are required, install R8222D1014. See
page 12.
Available on T8611R1000 only.
T841A1597
Chronotherm
IV
C C C
R R R
Y1 Y Y1
W1 W1 W1
W2 W2 W2
G G G
or or
O/B B B O/B
or or
O/B O O O/B
L L L
E E E
– – –
– – X1 X2
– – –
– – –
C
R
Y1/W1
–
Aux.
G
O/B
O/B
L
E
–
–
–
W2
M13143