Honeywell Heat/1Cool - T841A1563 Premier 2 Stage Thermostat User Manual page 44

CARRIER
TYPICAL 50YQ, QT; 38QF, QN, QB, NPHPO1, 38YRA
Existing
Function
Terminals
Common
C
Power
R
Compressor
Y
1st Stg. Heat
W1
or
Aux. Heat
W1 W2
Fan
G
C/O Valve
B
Heat
C/O Valve
O
Cool
or
System Monitor/
F L
System Defrost
EM. Heat
E
Multiple Aux.
–
Heat Loads
LED Indication
–
Defrost
P
2nd Stage
–
Compressor
Configure O/B (select models) in Installer Setup.
When W2 is not used, configure W2 cycle rate to NC.
If provided on original equipment.
Terminal is for multiple second stage loads such as contactors, sequencers,
or relays.
Terminal X (C) must be connected to transformer common.
Do not remove factory-installed jumper.
TYPICAL THERMOSTATS AND SUBBASES — HONEYWELL MODEL NUMBER (CUSTOMER PART NUMBER)
T841C1009 (HH07AT180)
T872G1075/Q672J1054 (HH07AT171/HH93AZ173)
T872G1075/Q672L1052 (HH07PZ085/HH93AZ075A)
T874C1166 (HH07AT160)
T874D1272 (HH07AT162)
T874G1055/Q674J1035 (HH07AT171/HH93AZ173A)
T874G1055/Q674J1118 (HH07AT171/HH93AZ188)
T874G1055/Q674L1041 (HH07AT171/HH93AZ175A)
T874G1055/Q674L1397 (HH07AT171/HH93AZ185A)
T874G1055/Q674P1005 (HH07AT171/HH93AZ169)
T874G1071/Q674P1005 (HH07AT171/HH93AZ169)
70-6627 • 42
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
– – –
– – –
T874G1121 (HH07AT161)
T874G1717/Q674J1167
T874H1070/Q674B1406 (HH07AT166/HH93AZ200)
T874H1070/Q674C1322 (HH07AT166/HH93AZ199)
T874H1088/Q674B1406 (HH07AT166/HH93AZ200)
T874H1088/Q674C1322 (HH07AT166/HH93AZ199)
T874J1002/Q674L1074 (HH07AT175/HH93AZ186)
T874L1000/Q674E1270 (HH07AT176/HH93AZ189)
T874L1018/Q674B1356 (HH07AT178/HH93AZ192)
T874L1018/Q674C1264 (HH07AT178/HH93AZ193)
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 –
– –
Optional CHECK LED on T8611G1004. See Fig. 26.
Field-installed X2 to X jumper (provided).
LED is energized when terminal is powered.
Available on T8611R1000 only.
L terminal is powered continuously when thermostat is in Em. Ht. position.
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
– – –
– – –
T874R1319/Q674B1281 (42QH400083/42QH400103)
T874R1384/Q674L1439 (HH07AQ170/HH93AZ187)
T874R1384/Q674L1579 (HH07AQ170/HH93AZ198)
T874V1008/Q674R1003 (HH07AT177/HH93AZ190)
T8085R1007/Q682L1002 (HH07AT075/HH93AZ159C)
T8085R1023/Q682L1028 (HH07AT075C/HH93AZ159C)
T8141A1147
T8611G1046 (HH07AE001)
T8611R1208 (HH07AX114)
T8611R1216 (HH07AX115)
C
R
Y1/W1
–
Aux.
G
O/B
O/B
L
E
–
–
–
W2
M13147