Honeywell T874 - Page 89

T874 MULTISTAGE THERMOSTATS AND Q674 SUBBASES
89 60-2485—8
D1347 82 TRADELINE® contains T874D1942, Q674E1403. Y594D1347
D1354 82 SUPER TRADELINE® contains T874D2031 (no
cover), Q674E1049, and TG504A with two keys.
Y594D1354
D1370 45 Obsolete
. Carrier part no. 50QE90022101; contains
T874D2049 and Q674B1539.
T874D1165/
Q674B1034
Replacement has °F
scaleplate.
D1388 72 Obsolete
. Carrier part no. 50QE90023101; contains
T874D2049 and Q674C1520.
T874D1165/
Q674C1058
Replacement has °F
scaleplate.
D1396 184 Obsolete
. Carrier part no. 50QE90025101; contains
T874D2049 and Q674G1153.
T874D1165/
Q674G1070
Replacement has °F
scaleplate.
D1404 55, 66 Obsolete
. Carrier part no. 50QE90024101; contains
T874D2049 and Q674D1164.
T874D1165/
Q674D1040
Replacement has °F
scaleplate.
D1412 82 Obsolete
. Carrier “Weathermaker” part no.
HH07AT209; taupe color; contains T874D2064 and
Q674E1445.
T874D1165/
Q674E1049
Replacement is beige color.
D1420 82 Obsolete
. Carrier “Zone Perfect” part no.
HH07AT208; taupe color; contains T874D2072 and
Q674E1445.
T874D1165/
Q674E1049
Replacement is beige color.
D1438 55, 66 Obsolete
. Contains T874D2098 and Q674D1008. T874D1165/
Q674D1040
Replacement has 2 setpoint
levers.
D1446 55, 66 Obsolete
. Contains T874D2106 and Q674D1008. T874D1165/
Q674D1040
Replacement has °F
scaleplate and 2 setpoint
levers.
D1453 208 Obsolete
. Amana logo; part no. P1217501F;
contains T874D2163 and Q674D1172.
T874D1165/
Q674D1040
D1461 45 Obsolete
. Amana logo; part no. P1217701F;
contains T874D2171 and Q674B1562.
T874D1942/
Q674B1034
Y594E
E1015 72 Obsolete
. Trane part no. BAYSTAT015; contains
T874E1040, Q674C1009.
T874B1019/
Q674C1058
Y594F
F1022 44 Obsolete
. Contains T874F1031 and 40003440-001
wallplate with installed diode.
T874F1015
F1048 72 Obsolete
. Reznor part no. 93436; contains
T874F1130, Q674C1009.
T874F1015/
Q674C1058
F1063 91 Obsolete
. Reznor part no. 93435; contains
T874F1130, Q674G1005.
T874F1015/
Q674G1070
Y594G
G1013 160 Obsolete. York part no. 2TH11702424; contains
T874G1170, Q674J1027.
Y594G1567
G1138 160 Obsolete
. York part no. 025-22286; contains
T874G1196, Q674J1027.
Y594G1567
G1153 154 Obsolete
. Crispaire part no. HP10-51; contains
T874G1089, Q674F1204.
Y594G1252 Wiring differences (old=new):
A=L.
G1161 162 Contains T874G1204, Q674J1043. Y594G1161
G1195 155 Obsolete
. Heil Quaker part no. HQ521387HW;
contains T874G1246, Q674F1212.
Y594G1252
G1229 160 Obsolete
. York part no. 6TH11702424; contains
T874G1428, Q674J1027.
Y594G1567
G1245 155 Obsolete
. BDP part no. HH641502; contains
T874G1451, Q674F1212.
Y594G1252
G1252 155 TRADELINE; contains T874G1246, Q674F1212. Y594G1252
Table 10. Y594 Cross Reference.
Model
Number
Fig.
No. Description
Trade Model
Replacement
a
Remarks
a
Both the thermostat and subbase must be replaced.