Y594 Cross Reference - Honeywell T874 Product Data

Model Fig.
Number No.
Y594A
A1001 46 Obsolete. Amana part no. D68535-11; contains
T874A1077, Q674B1075.
A1019 82 Obsolete. Amana part no. P68535-12; contains
T874A1077, Q674E1056.
A1035 44 Obsolete. Trane part no. 268-0187-1; contains
T874A1085, Q674B1018.
A1043 46 Obsolete. Trane part no. 268-0201-5; contains
T874A1085, Q674B1075.
A1050 55, 66 Obsolete. Trane part no. 268-0201-3; contains
T874A1085, Q674D1008.
A1068 82 Obsolete. Sears part no. 42-9144; contains
T874A1119, Q674E1007.
A1126 64 Contains T874A1291, Q674Q1012.
A1159 91 Obsolete. Contains T874A1440, Q674G1005.
A1167 184 California Economizer; Premier White® color;
contains T874A1580 and Q674G1161.
A1175 55 Obsolete. York logo; part no. 2TH04703224;
contains T874A1622, Q674D1180.
A1191 46 Obsolete. Amana logo: part no. P6853524R;
contains T874A1002, Q674B1075.
Y594B
B1026 44 Trane part no. BAYSTAT012; contains T874B1035,
Q674B1018.
B1034 46 Obsolete. Trane part no. 163-552-1; contains
T874B1035, Q674B1075.
B1042 88 Obsolete. Goodman part no. CHTS36-60; contains
T874B1100, Q674E1338.
Y594C
C1009 82 Obsolete. Amana part no. D68535-9; contains
T874C1059, Q674E1056.
C1017 142 Obsolete. Amana part no. D68535-10; contains
T874C1059, Q674F1022.
C1058 46 Obsolete. Contains T874C1000, Q674B1075.
C1082 82 Obsolete. Trane part no. 166-162-1; contains
T874C1083, Q674E1007.
C1256 45 Obsolete. Amana part no. D68535-16; contains
T874C1059, Q674B1059.
C1280 45 Obsolete. Williamson; contains T874C1570,
Q674B1000.
C1314 56 Obsolete. LSI; contains T874C1471, Q674B1257.
C1322 121 Obsolete. Contains T874C1638, Q674L1561.
C1330 142 Obsolete. Amana part no. D68535-21; contains
T874C1059, Q674F1022.
a Both the thermostat and subbase must be replaced.
T874 MULTISTAGE THERMOSTATS AND Q674 SUBBASES
Table 10. Y594 Cross Reference.
Description
87
Trade Model
Replacement a
T874A1036/
Q674B1075
T874A1036/
Q674E1049
T874A1036/
Q674B1018
T874A1036/
Q674B1075
T874A1036/
Q674D1040
T874A1036/
Q674E1049
None
T874A1150/
Q674G1070
T874A1036/ Replacement is beige color.
Q674G1070
T874A1010/
Q674D1040
T874A1036/
Q674B1075
T874B1019/
Q674B1018
T874B1019/
Q674B1075
T874B1019/ No LEDs on replacement.
Q674E1049
T874C1018/ Jumper RC-RH
Q674E1049
T874C1018/
Q674F1022
T874C1018/
Q674B1075
T874C1018/
Q674E1049
T874C1018/ Jumper RC-RH
Q674B1034
T874C1018/
Q674B1034
T874C1018/ Jumper RC-RH; no RESET
Q674B1018 LED on replacement.
Y594C1322
T874C1018/
Q674F1022
Remarks
.
.
60-2485—8