Honeywell Heat/1Cool - T841A1563 Premier 2 Stage Thermostat User Manual page 55

TYPICAL 3700, 3900, 4400, 6500, 7100, 9200 (3600 SERIES THERMOSTAT) ALTERNATIVE REPLACEMENTS
Existing
Function
Terminals
or
Common
C/X X
Power
R
Compressor
Y
1st Stage
W1
Heat
Aux. Heat
W2
Fan
G
Defrost
B
C/O Valve
O
Cool
System Monitor/
L
System Defrost
EM. Heat
E
Multiple Aux.
–
Heat Loads
LED Indication
–
EM. Heat
P
2nd Stage
–
Compressor
Configure O/B (select models) in Installer Setup.
LED is energized when terminal is powered.
Terminal is for multiple auxiliary heat loads such as contactors, sequencers,
or relays.
Terminal X (C) must be connected to transformer common.
Do not remove factory-installed jumper.
Optional CHECK LED on T8611G1004. See Fig. 26.
TYPICAL THERMOSTATS AND SUBBASES — HONEYWELL MODEL NUMBER (CUSTOMER PART NUMBER)
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
– – –
– – –
T8611R1059 (3600A-381)
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 –
– –
Field-installed X2 to X jumper (provided).
If multiple auxiliary heat loads are used, connect to W2 (Aux W8900B)
terminal.
L terminal is powered continuously when thermostat is in Em. Ht. position.
Defrost is available on T8611R1000 only.
Models 3700, 3900 and 6500 require connection of O and B terminals.
When W2 is not used, configure W2 cycle rate to NC.
EVCON/COLEMAN
Chronotherm
IV
C C C
R R R
Y1 Y Y1
W1 W1 W1
W2 W2 W2
G G G
B B B
or or
O/B O O O/B
L L L
E E E
– – X1 X2
– – –
– – –
70-6627 • 53
C
R
Y1/W1
–
Aux.
G
B
O/B
L
E
–
–
W2
M13174