Honeywell T874 - Page 92

T874 MULTISTAGE THERMOSTATS AND Q674 SUBBASES
60-2485—8 92
J1019 244 Obsolete. TRADELINE; automatic changeover;
contains T874J1069 and Q674J1282; direct
replacement for T874J1002 or T874J1028 used
with Q674J1068 or Q674J1159 (HH07AT175 or
HH07AT165 used with HH93AZ183 or
HH93AZ196).
(Recontrol)
T8511G1021
Y594N
N1007 178 Obsolete
. Williamson part no. 75-189; contains
T874N1008 and Q674F1196.
T874N1016/
Q674F1196
N1015 179 Obsolete
. Contains T874N1040 and Q674F1261.
Y594G1419
a
Wiring differences (old=new):
L=X2, Y=Y1.
N1023 178 Obsolete
. Intertherm part no. 9111882; contains
T874N1057 and Q674F1220.
T874N1016/
Q674F1220
N1031 178 Obsolete
. Nordyne “Miller” part no. 9122240;
contains T874N1065 and Q674F1220.
T874N1016/
Q674F1220
Y594P
P1005 97 Obsolete
. Carrier part no. 50QE90021101; contains
T874P1055 and Q674C1512.
T8600D2028 Wiring differences (old=new):
Y=Y1, W=O; Y1-W1 jumper
required.
Y594R
R1011 120 Obsolete
. York part no. 2TH11702224; contains
T874R1046 and Q674L1272.
Y594R1664
R1029 47 Obsolete
. Bryant; contains T874R1004 and
Q674B1042.
Y594R1243 Wiring differences (old=new):
W1=W2.
R1037 122 Obsolete
. Fedders part no. 88-58-00540-001;
contains T874R1269 and Q674L1066.
Y594R1615 Wiring differences (old=new):
K=E, C=X, W1=B, Z=L.
R1102 120 Obsolete
. York part no. 025-22285-000; contains
T874R1145 and Q674L1272.
Y594R1664
R1110 108 Obsolete
. Heil Quaker part no. HQ712004HW;
contains T874R1137 and Q674L1132.
Y594R1292
R1128 116 Obsolete
. Crispaire part no. HP9-51; contains
T874R1111 and Q674L1215.
Y594R1243 Wiring differences (old=new):
A=L.
R1136 109 Obsolete
. Contains T874R1053 and Q674L1140. Y594R1763
R1151 120 Obsolete
. York part no. 2TH11702324; contains
T874R1251, Q674L1272 and C815A1039.
Y594R1672
R1185 201 Obsolete
. Intertherm part no. 9111871; contains
T874R1202 and Q674L1264.
Y594R1672 Wiring differences (old=new):
W2=W, X=B, Z=no
connection, K=X, W1=H.
R1193 120 Obsolete
. York part no. 6TH11702224; contains
T874R1327 and Q674L1272.
Y594R1664
R1201 106 Obsolete
. BDP part no. HH641501; contains
T874R1335 and Q674L1405.
Y594R1243
R1219 133 Obsolete
. Fedders part no. 88-58-00560-001;
contains T874R1343 and Q674L1413.
Y594R1425 Wiring differences (old=new):
K=E, C=X, Z=L; remove
factory installed jumper.
R1235 125 Obsolete. Coleman part no. 3600-368; contains
T874R1368 and Q674L1421.
Y594R1797
R1243 115 TRADELINE; contains T874R1152 and Q674L1207. Y594R1243
R1250 128 Obsolete
. Williamson part no. 75-191; contains
T874R1392 and Q674L1447.
Y594R1425 Wiring differences (old=new):
A=L.
R1284 136 Obsolete
. Trane part no. BAYSTAT339; contains
T874R1426 and Q674L1496.
Y594R1763
Table 10. Y594 Cross Reference.
Model
Number
Fig.
No. Description
Trade Model
Replacement
a
Remarks
a
Both the thermostat and subbase must be replaced.