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T874 MULTISTAGE THERMOSTATS AND Q674 SUBBASES
45 60-2485—8
L1342 Lennox no. 52C7601; used with T872W1019
and C815A1013.
None
L1375 Westinghouse; used with T872R1271, W89. None
L1383 Dunham Bush; used with T872R1099. Y594R1243
L1391 Williamson; used with T872R1339. Y594R1243
L1409 Duotherm special; used with T872R1321, W89. None
Q672N System: OFF-HEAT-COOL-EVAP.
N1001 Goettl; heat pump; heat mode changeover;
evaporative cooler circuit; Fan: AUTO-ON;
System: AUTO; used with T872C1459.
None
N1019 Goettl; heat pump; heat mode changeover;
evaporative cooler circuit; W1-Y1 jumper; used
with T872C1459.
None
N1027 Siegler special; used with T872C1707. None
Q672P System: EM. HT.-HEAT-COOL.
P1009 Carrier special; no. HH93AZ069; used with
T872G1075 (HH07AT071).
Y594R1243 Replacement has OFF system
switch position
Table 7. Q672-Q674 Subbase Cross Reference.
Model Number Description
Q674 Trade
Replacement
a
Remarks
a
When replacing a T872 Thermostat and Q672 Subbase, always replace both the thermostat and subbase.