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T874 MULTISTAGE THERMOSTATS AND Q674 SUBBASES
60-2485—832
C1509 Fedders lo
g
o; used with Q672L1102 Y594R1425 Wirin
g
differences
(
old=new
)
: C=X,
K=E; remove Y-W1
j
umper.
C1517 Climatrol lo
g
o; used with Q672L1102 Y594R1425 Wirin
g
differences
(
old=new
)
: C=X,
K=E; remove Y-W1
j
umper.
C1525 S
q
uare D lo
g
o; no. HCD-2 T874C1018
C1533 Airtemp lo
g
o T874C1018
C1541 Airtemp lo
g
o; used with Q672L1102 Y594R1425 Wirin
g
differences
(
old=new
)
: C=X,
K=E; remove Y-W1
j
umper.
C1566 TRADELINE; Celsius scale T874C1018 Replacement has °F scaleplate.
C1574 Whalen special; used with Q672B1269 None
C1582 Lennox; meets DoD None
C1590 Sin
g
er; 8°F
(
4.4°C
)
differential between sta
g
e
1 and sta
g
e 2
T874C1125 Replacement has 2°F
(
1° C
)
differential between H1 and H2.
C1608 Sin
g
er lo
g
o; no. 02005784 8°F
(
4.4°C
)
differential
between sta
g
e 1 and sta
g
e 2
T874C1125 Replacement has 2°F
(
1°C
)
differential between H1 and H2.
C1616 Celsius scale; stop set at 23°C None Add 4074ECK ad
j
ustable stop.
C1624 Heat Wave lo
g
o; no. 0360-116 T874C1018
C1632 York lo
g
o; heat anticipator set at 0.2A T874C1018
C1640 Heat anticipator set at 0.4A T874C1018
C1665 Wesco lo
g
o; heat anticipator set at 0.8A T874C1018
C1673 Wards lo
g
o; used with Q672B1285, B1293 Gas s
y
stems:
T874C1018/
Q674B1034
Electric s
y
stems:
T874C1018/
Q674B1075
Ad
j
ust anticipator faster for correct
performance.
C1681 Lechauffa
g
e Urbain lo
g
o; Celsius scale T874C1018
C1699 Duotherm lo
g
o; used with Q672E1068 or
Q672F1000
T874C1018 See subbase description for
replacement information.
C1707 Si
g
ler lo
g
o; used with Q672N1027 None
C1715 Westin
g
house lo
g
o T874C1018
T872D
2-sta
g
e heat, 2-sta
g
e cool
D1003 Standard OEM T874D1165
D1011 TRADELINE T874D1165
D1029 Westin
g
house lo
g
o T874D1165
D1037 Climatrol lo
g
o T874D1165
D1045 Lennox lo
g
o; no. P-8-8897; used with Q672E1191. T874D1165
D1052 York lo
g
o T874D1165
D1060 Sin
g
er lo
g
o; no. 02005385 T874D1165
D1078 Rheem lo
g
o T874D1165
D1086 Rudd lo
g
o T874D1165
D1094 York lo
g
o; lockin
g
cover T874D1165
D1102 American Standard lo
g
o T874D1165
D1110 ITT lo
g
o T874D1165
D1128 Carrier lo
g
o T874D1165
D1136 No anticipator on sta
g
e 1 cool; used with
Q672C1029
T874D1165
Table 6. T872-T874 Thermostat Cross Reference.
Model Number Description
T874 Trade
Replacement
a
Remarks
a
When replacin
g
a T872 Thermostat and Q672 Subbase, alwa
y
s replace both the thermostat and the subbase.