Honeywell TRADELINE Q674, Product Data, Page: 68 / 224

T874 MULTISTAGE THERMOSTATS AND Q674 SUBBASES
60-2485—8 68
R1574 132 Obsolete. Comfortmaker logo; part no. 1505739; used
with Q674L1538; used in Y594R1383.
Y594R1243
a
Wiring differences (old=new):
C=X, X=L, W=W2.
R1582 132 Obsolete. Arcoaire logo; part no. 150739; used with
Q674L1538; used in Y594R1391.
Y594R1243
a
Wiring differences (old=new):
C=X, X=L, W=W2.
R1590 115 Obsolete. Refac logo; used with Q674L1207. T874R1152/
Y594R1243
a
Replacement has °F
scaleplate.
R1608 119 Obsolete. Honeywell logo; Intertherm heat pump; used
with Q674L1264; used in Y594R1409.
Y594R1763
a
Wiring differences (old=new):
W2=W, X=B, Z=F, K=X2,
W1=O.
R1616 168 Honeywell logo; SUPER TRADELINE® model; used
with Q674L1587; used in Y594R1425.
Y594R1425
a
R1624 200 Obsolete. Honeywell logo; used with Q674L1595; used
in Y594R1433.
Y594R1243
a
Wiring differences (old=new):
X=B, Z=F, W2=W, K=X2,
W1=O.
R1632 134 Obsolete. Honeywell logo; used with Q674L1603.
Y594R1243
a
R1640 115 Obsolete. Hitecsa logo; °C scaleplate; H2 anticipator
factory set at 1.2A; used with Q674L1207.
Y594R1243 a
Replacement has °F
scaleplate.
R1657 136 Obsolete. American Standard logo; part no.
ASYSTAT651; requires outdoor reset; used with
Q674L1611; used in Y594R1441.
Y594R1763 a
R1673 108 Heil logo; part no. 1060321, HAXB004TW01; used with
Q674L1132; used in Y594R1466.
Y594R1292 a
R1699 119 Obsolete. Miller logo; used with Q674L1264; used in
Y594R1482.
Y594R1763 a
Wiring differences (old=new):
W2=W, X=B, Z=F, K=X2,
W1=O.
R1707 209 Trol-A-Temp by Honeywell logo; Premier White® color;
used with Q674L1678; used in Y594R1490.
None See Trol-A-Temp for
replacement.
R1715 209 Trol-A-Temp by Honeywell logo; used with Q674L1186;
used in Y594R1508.
None See Trol-A-Temp for
replacement.
R1723 218 Obsolete. No logo; Snyder General part no. 654958B07;
°F/°C scaleplate; used with Q674L1702 and
C815A1005; used in Y594R1516.
Y594R1672 a
Wiring differences (old=new):
W1=W, X=X2, C=B.
R1731 108 Obsolete. Inter-City Products logo; part no.
HQ11477909HW; used with Q674L1132; used in
Y594R1524.
Y594R1292 a
R1749 108 Tempstar logo; part no. 1060322, TAXB004TW01; used
with Q674L1132; used in Y594R1532.
Y594R1292 a
R1814 108 Obsolete. Honeywell logo; Keeprite part no. THPC; °C
scaleplate; used with Q674L1132; used in Y594R1607.
Y594R1292 a
Replacement has °F
scaleplate.
R1822 230 Honeywell logo; TRADELINE model; used with
Q674L1710; used in Y594R1615.
Y594R1615 a
R1830 134 Obsolete. Addison logo; WeatherKing part no. 41-
20796-61; used with Q674L1504; used in Y594R1656.
Y594R1300 a
R1855 228 Obsolete. Lennox logo; Premier White® color; °C
scaleplate; outdoor reset required (use C815A1005);
used with Q674L1728; used in Y594R1714.
Y594R1763 a
Wiring differences (old=new):
Y1=Y, L=F, W1=W, E=X2,
C=B; replacement has °F
scaleplate.
R1871 120 Honeywell logo; designed to replace Y594R1011 (York
part no. 2TH11702224); used with Q674L1736; used in
Y594R1664.
Y594R1664 a
Table 8. T874 Cross Reference.
Model
Number
Fig.
No. Description
Trade Model
Replacement Remarks
a
Both the thermostat and subbase must be replaced.