Honeywell T874 Product Data page 88

T874 MULTISTAGE THERMOSTATS AND Q674 SUBBASES
Model Fig.
Number No.
C1348 70 Obsolete. Fiberglas; contains T874C1653,
Q674S1000.
C1355 45 Obsolete. Nordyne "Miller" part no. 9122250;
contains T874C1695, Q674B1000.
C1363 45 Obsolete. Nordyne "Intertherm" part no. 911100001;
contains T874C1703, Q674B1000.
C1371 184 Obsolete. California Economizer; contains
T874C1802 and Q674G1005.
C1389 237 Obsolete. TRADELINE; Premier White® color;
contains T874C1810 and Q674B1547.
C1413 238 Heat Controller "Energy Night" logo; contains
T874C1844 and Q674F1592.
C1421 249 Obsolete. TRADELINE; contains T874C1877 and
Q674B1554.
C1439 T874C1869 and Q674C1579.
Y594D
D1016 44 Obsolete. Trane part no. 268-0201-2; contains
T874D1082, Q674B1018.
D1024 72 Trane part no. BAYSTAT010; contains T874D1082,
Q674C1009.
D1032 91 Obsolete. Trane part no. BAYSTAT011; contains
T874D1082, Q674G1021.
D1040 46 Amana part no. P68535-19R; contains T874D1082,
Q674B1075.
D1057 55, 66 Obsolete. Trane part no. BAYSTAT007; contains
T874D1082, Q674D1008.
D1149 46 Obsolete. Amana part no. P68535-20C; contains
T874D1322, Q674B1075.
D1156 48 Obsolete. Trane part no. BAYSTAT013; contains
T874D1082, Q674B1133.
D1180 82 York part no. 025-23321-000; contains T874D1504,
Q674E1007.
D1222 166 Obsolete. WeatherKing; contains T874D1009,
Q674F1337.
D1248 82 Obsolete. Reznor part no. 93437; contains
T874D1629, Q674E1007.
D1297 82 Obsolete. ArcoAire part no. 1506753; contains
T874D1769, Q674E1346.
D1305 82 Obsolete. Comfortmaker part no. 1505753; contains
T874D1785, Q674E1346.
D1321 45 Obsolete. Goodman part no. CHT 90-120; contains
T874D1843, Q674B1000.
D1339 82 Obsolete. Nordyne part no. 5471180; contains
T874D1009, Q674E1007.
Both the thermostat and subbase must be replaced.
a
60-2485—8
Table 10. Y594 Cross Reference.
Description
88
Trade Model
Replacement a
T874C1000/ Wiring differences (old=new):
Q674B1075 Y=Y1; jumper RC-RH and Y1-
W1; replacement has no
SERVICE LED; replacement
has fan switching and HEAT-
OFF-COOL system switching.
T874C1018/
Q674B1034
T874C1018/ Wiring differences (old=new):
Q674B1075 Y=Y1; jumper RC-RH; Y1-W;
replacement has no SERVICE
LED.
T874C1018/
Q674G1070
Y594C1389
Y594R1425 E-W2 jumper required; system:
EM.HT.-Heat-Off-Cool.
Y594D1347 Replacement has auto
changeover; jumper RH-RC.
None
T874D1165/
Q674B1018
T874D1165/
Q674C1058
T874D1165/
Q674G1070
T874D1165/
Q674B1075
T874D1165/
Q674D1040
T874D1165/
Q674B1075
T874D1165/ Replacement has no FILTER
Q674B1018 LED.
T874D1165/
Q674E1049
T874D1165/ Wiring differences (old=new):
Q674F1022 R=RH; jumper RC-RH;
replacement has no EM.HT. or
AUX. HT. LEDs.
T874D1165/
Q674E1049
T874D1165/
Q674E1049
T874D1165/
Q674E1049
T874D1165/
Q674B1034
T874D1165/
Q674E1049
Remarks