Honeywell T874 Product Data page 59

Model Fig.
Number No.
G1204 162 Honeywell logo; designed for use on Trane heat pumps;
no H2 anticipation; changeover in cooling mode; used
with Q674J1043 and C815A1005; used in Y594G1161.
G1212 155 Obsolete. Honeywell logo; H2 anticipator factory set at
0.2A; changeover in cooling mode; includes shunt to
bypass H2 anticipator with W3 heat relays; used with
Q674F1238.
G1220 235 Obsolete. Rheem logo; part no. RXMT-C71; changeover
in cooling mode; used with Q674F1238.
G1238 155 Obsolete. Ruud logo; part no. UXMT-C71; changeover
in cooling mode; used with Q674F1238.
G1246 Obsolete. Honeywell logo; changeover in cooling mode.
155 Used with Q674F1212; used in Y594G1195, G1252,
G1369.
170 Used with Q674F1410; used in Y594G1393.
G1261 58, 157 Obsolete. Borg-Warner; used with Q674D1032, F1253.
G1279 58, 157 Obsolete. Bryant logo; used with Q674D1032, F1253.
G1287 58, 157 Obsolete. Wesco logo; used with Q674D1032, F1253.
G1295 58 Obsolete. York logo; part no. 2TH11702724A; used with
Q674D1032.
G1345 160 Obsolete. York logo; part no. 2TH11702624A; °C
scaleplate; used with Q674J1027.
G1352 73 Obsolete. Command-Aire logo; 12°F differential
between H1 and H2 for night setback; used with
Q674C1066.
G1378 79 Obsolete. Mammoth logo; H2 anticipator factory set at
0.8A; 12°F differential between H1 and H2 for night
setback; °F/°C scaleplate; used with Q674C1124; used
in Y594G1294.
G1402 129 Obsolete. York part no. 2TH11702824A; meets DoD
specifications; used with Q674L1363.
G1410 155 Obsolete. Borg-Warner multi-logo; part
no. 6TH11703024A; used with Q674F1311.
G1428 160 Obsolete. Borg-Warner multi-logo; part no.
6TH11702424A; used with Q674J1027; used in
Y594G1229.
G1436 58 Obsolete. Borg-Warner multi-logo; part no.
6TH11702724A.
a
Both the thermostat and subbase must be replaced.
T874 MULTISTAGE THERMOSTATS AND Q674 SUBBASES
Table 8. T874 Cross Reference.
Description
59
Trade Model
Replacement
Designed for use on Trane
Y594G1161 a
heat pumps.
Y594G1252 a
Y594G1252 a
Y594G1252
a
Y594G1252 a
Y594G1393
a
None See subbase description for
replacement information.
None See subbase description for
replacement information.
None See subbase description for
replacement information.
T874D1165/ Wiring differences (old=new):
Q674D1040 Y=Y2, O=Y1, W=W2; jumper
W1-Y2.
Y594G1575
a
Wiring differences (old=new):
Y594H1012 a
Y1=O, Y2=Y, L=R, R=none; R-
L jumper required; no night
setback.
T8600D1004 Wiring differences (old=new):
(programmable) Y1=O, Y2=Y, L=RH; RC-RH
jumper required; includes
night setback.
Wiring differences (old=new):
Y594H1012 a
R1=none, R2=L; R-L jumper
required; no night setback.
T8090A1007/ Includes night setback; W-Y
jumper required.
Q682A1038
a
(programmable)
Wiring differences (old=new):
Y594R1425 a
W=W2, X=E, B=X; jumper
Y-W1.
T874G1246 or
a
Y594G1252 a
Y594G1567 a
T874D1165/ Wiring differences (old=new):
Q674D1040 Y=Y2, O=Y1, W=W2; jumper
W1-Y2.
Remarks
60-2485—8