Honeywell Heat/1Cool - T841A1563 Premier 2 Stage Thermostat User Manual page 85

Existing
Function
Terminals
Common
C
Power
R
1st Stage
Y1
Cool
1st Stage
W1
Heat
2nd Stage
W2
Heat
Fan
G
C/O Valve
–
Heat
C/O Valve
O
Cool
System Monitor/
X1
System Defrost
EM. Heat
E
2nd Stage
–
Cool
Power Heat
–
IMPORTANT: No provision for emergency heat, system monitor (compressor
fault), or auxiliary heat LEDs.
Terminal C (X) must be connected to transformer common.
Remove Y1 (Y) to W1 (W) jumper.
Chronotherm
Electromechanical
X
Rc R
Y1 Y1
W1 W1
W2 W2
G G
B B
O O
X1
– E
Y2 –
Rh –
Electronic Replacement or Upgrade
®
III
C C C
R R R
Y1 Y Y1
W1 W1 W1
W2 W2 W2
G G G
or
B B B O/B
or
O O O O/B
L L L
E E E
– – –
– – –
L terminal is powered continuously when thermostat is in Em. Ht. position.
LED is energized when terminal is powered.
If separate Y1 and W1 terminals required, install R8222D1014; see
page 12.
MAGIC CHEF
"PB" SERIES EQUIPMENT
Chronotherm
IV
C C C
R R R
Y Y1 Y1/W1
W1 W1 –
W2 W2 W2
G G G
or
B B O/B O/B
or
O O O/B O/B
L L L
E E E
– – Y2
– – –
M13167
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