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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 Westin
g
house; 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
S
y
stem: OFF-HEAT-COOL-EVAP.
N1001 Goettl; heat pump; heat mode chan
g
eover;
evaporative cooler circuit; Fan: AUTO-ON;
S
y
stem: AUTO; used with T872C1459.
None
N1019 Goettl; heat pump; heat mode chan
g
eover;
evaporative cooler circuit; W1-Y1
j
umper; used
with T872C1459.
None
N1027 Sie
g
ler special; used with T872C1707. None
Q672P
S
y
stem: EM. HT.-HEAT-COOL.
P1009 Carrier special; no. HH93AZ069; used with
T872G1075
(
HH07AT071
)
.
Y594R1243 Replacement has OFF s
y
stem
switch position
Table 7. Q672-Q674 Subbase Cross Reference.
Model Number Description
Q674 Trade
Replacement
a
Remarks
a
When replacin
g
a T872 Thermostat and Q672 Subbase, alwa
y
s replace both the thermostat and subbase.