T874 MULTISTAGE THERMOSTATS AND Q674 SUBBASES
77 60-24858
E1262 82 Lennox part no. 13F1701. Q674E1049
E1270 198 Obsolete. Carrier part no. HH93AZ189; used with
T874L1000
(
HH07AT176
)
.Y594G1419aE-W2
j
umper re
q
uired.
E1304 82 Obsolete. BDP part no. P272-1887; used with
T874L1026. Y594G1419aE-W2
j
umper re
q
uired.
E1312 224 Obsolete. McQua
y
part no. 60684901; one LED; used
with T874A1523, A1549, D1686, D1918. Q674E1049 Replacement has no LEDs.
E1320 82 Obsolete. Trane part no. BAS-0434. Q674E1049
E1338 88 Obsolete. Goodman part no. CHTS36-60; HIGH and
LOW LEDs; used with T874B1100; used in
Y594B1042.
Q674E1049 Replacement has no LEDs.
E1346 82 Obsolete. Sn
y
der General part nos. 1505753/1506753/
654958B02; used with T874D1769; used in
Y594D1297.
Q674E1049
E1353 210 Obsolete. Mammoth; used with T874Y1005; used in
Y594Y1004. T8611M2025
E1379 212 Trol-A-Temp b
y
Hone
y
well; used with T874A1465. None See Trol-A-Temp.
E1395 222 Obsolete. Carrier part no. HH93AZ209; used with
T874B1134
(
HH07AT199
)
.T874B1019/
Q674E1049a
Wirin
g
differences
(
old=new
)
:
W1 =W; RC-RH
j
umper
re
q
uired; replacement has no
LEDs.
E1403 82 TRADELINE; desi
g
ned to replace York 2TH04701024;
used with T874D1942; used in Y594D1347. Y594D1347a
E1411 82 Obsolete. Carrier Canada part no. HH93AZ176-W;
g
ra
y
color; removable
j
umper between RC and RH
terminals.
Q674E1049 RC-RH
j
umper re
q
uired.
Replacement is bei
g
e color.
E1429 87 Carrier Canada part no. HH93AZ177-W;
g
ra
y
color;
includes LOCKOUT LED; removable
j
umper between
RC and RH terminals.
Q674E1049 RC-RH
j
umper re
q
uired.
Replacement has no LOCK-
OUT LED and is bei
g
e color.
E1445 82 Obsolete. Carrier part no. HH93AZ217-W;
g
ra
y
color;
removable
j
umper between RC and RH terminals. Q674E1049 RC-RH
j
umper re
q
uired.
Replacement is bei
g
e color.
E1460 224 McQua
y
lo
g
o; part no. 073319801; includes one LED.
E1478 82 Obsolete. Armstron
g
lo
g
o; part no. 03299A19. Q674E1049 RC-R
j
umper re
q
uired.
Replacement is bei
g
e color.
E1486 82 Obsolete. Standard OEM. Q674E1049 RC-R
j
umper re
q
uired.
Replacement is bei
g
e color.
Q674F S
y
stem: EM.HT.-HEAT-AUTO-COOL-OFF;
Fan: AUTO-ON
F1006 141 Obsolete. Includes EM HEAT LED; used with
T874C1331. Q674F1022 Jumper E-X2.
F1022 142 Includes LED and field selectable inserts; used with
T874C1059; used in Y594C1017, C1330. Q674F1022
F1030 146 Carrier part no. HH93AZ174; SUPL HEAT LED; used
with T874D1074
(
HH07AT172
)
.Q674F1022 Wirin
g
differences
(
old=new
)
:
C=X1, X=X2.
F1048 149 Obsolete. Includes EM HEAT LED and auxiliar
y
power
terminal Z. Q674F1022 Replacement does not include
Z terminal and onl
y
re
q
uires
one transformer.
F1063 146 Obsolete. Carrier part no. HH93AZ181; SUPL HEAT
LED; used with T874D1074
(
HH07AT172
)
.Q674F1022 Wirin
g
differences
(
old=new
)
:
C=X1, X=X2.
F1071 142 Obsolete. S
q
uare D part no. 63600-002-11; CHECK
LED. Q674F1022
Table 9. Q674 Subbase Cross Reference.
Model
Number Fig.
No. Description Q674 Trade
Replacement Remarks
aBoth the thermostat and subbase must be repl aced.