Honeywell Heat/1Cool - T841A1563 Premier 2 Stage Thermostat User Manual page 117

Existing
Function
Terminals
or
Common
B X2
Power
R
1st Stage
W1
Heat
Aux. Heat
W2
Fan
G
1st Stage
Y1
Cool
C/O Valve
–
Heat
C/O Valve
–
Cool
System Monitor/
–
System Defrost
Em. Heat
E
Multiple Aux.
–
Heat Loads
LED Indication
–
Remove factory-installed Y1 (Y) to W1 (W) jumper.
Terminal must be connected to the transformer common.
Terminal is for multiple auxiliary heat loads such as contactors, sequencers,
or relays.
Chronotherm
Electromechanical
X X
R R
W1 W1
W2 W2
G G
Y Y1
B B
O O
L –
E E
W3 W3
X2 X1 X2
YORK/BORG WARNER
Electronic Replacement or Upgrade
®
III
C C C
R R R
W1 W1 W1
W2 W2 W2
G G G
Y1 Y Y1
or
B B B O/B
or
O O O O/B
L L L
E E E
– – –
– – –
Field-installed X2 to X (C) jumper.
If separate Y1 and W1 terminals are required, install R8222D1014; see
page 12.
Configure W2 cycle rate to NC.
TYPICAL EBHP SERIES
Chronotherm
IV
C C C
R R R
W1 W1 –
W2 W2 Aux.
G G G
Y Y1 Y1/W1
or
B B O/B O/B
or
O O O/B O/B
L L L
E E E
– – –
– X1 X2 –
M13220
70-6627 • 115