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T874 MULTISTAGE THERMOSTATS AND Q674 SUBBASES
81 60-2485—8
J1068 144 Obsolete. Carrier heat pump; part no. HH93AZ183;
used with T874J1002
(
HH07AT175
)
or T874J1028
(
HH07AT165
)
.
Y594J1019
J1076 180 Obsolete. McQua
y
part no. 02005964; two LEDs; used
with T874A,D.
Q674F1022 Replacement has no LEDs.
J1084 171 Obsolete
. BDP heat pump; part no. 34427DP126,
P272-1879; EM HEAT LED; used with T874J1010.
Y594J1019 Wirin
g
differences
(
old=new
)
:
W1=W2, F=L.
J1118 196 Obsolete
. Carrier heat pump; part no. HH93AZ188;
SUPL HEAT LED; S
y
stem: SUPL.HT.-ON-OFF; used
with T874G1055
(
HH07AT171
)
.
Y594G1674 Wirin
g
differences
(
old=new
)
:
C=X;Y1=W1;
j
umper re
q
uired;
no auto fan in emer
g
enc
y
heat.
J1126 160 Obsolete
. Luxaire no. 026-00068-000; EM HEAT LED;
used with T874G1568; used in Y594G1351.
Y594G1567
a
J1142 174 Obsolete. American Standard part no. WY28X0250;
AUX HEAT and EM HEAT LEDs; used with
T874G1675; used in Y594G1443.
Y594G1161
a
J1159 206 Obsolete. Carrier heat pump; part no. HH93AZ196;
used with T874J1002
(
HH07AT175
)
or T874J1028
(
HH07AT165
)
.
Y594J1019
J1167 175 Obsolete. Carrier heat pump; MANUAL, AUTO, HEAT
PUMP and DEFROST LEDs; S
y
stem: SUPL HEAT-
ON-OFF; used with T874G1717; used in Y507J1201.
Y594G1252
a
Wirin
g
differences
(
old=new
)
:
C=X, D=L; replacement has
AUX HEAT and EM HEAT
LEDs.
J1175 216 Obsolete
. Sn
y
der General part nos. 1505756,
1506756; CHECK, AUX HEAT and SYSTEM LEDs;
used with T874G1774, G1782; used in Y594G1500,
G1518.
Y594G1252
a
Wirin
g
differences
(
old=new
)
:
E=W2, W1=W3, X=E, C=X.
J1191 161 Obsolete. Carrier heat pump;
g
ra
y
color; used with
T874G1790.
Y594G1252
a
Wirin
g
differences
(
old=new
)
:
C=X; replacement has °F
scaleplate.
J1209 160 TRADELINE; desi
g
ned to replace Y594G1013
(
York
part no. 2TH11702424
)
, Y594G1229
(
York part no.
6TH11702424
)
and York part no. 2TH11704124; used
with T874G1865; used in Y594G1567.
Y594G1567
a
J1217 171 Obsolete. Nord
y
ne part no. 9132250; used with
T874J1036, J1044.
Y594J1019 Wirin
g
differences
(
old=new
)
:
F=L.
J1225 160 Obsolete
. TRADELINE;
g
ra
y
color; desi
g
ned to replace
Y594G1013
(
York part no. 2TH11702424
)
, Y594G1229
(
York part no. 6TH11702424
)
and York part no.
2TH11704124; used with T874G1873; used in
Y594G1575.
Y594G1567
a
Replacement is bei
g
e.
J1241 144 Obsolete
. Carrier Canada part no. HH93AZ183-W;
g
ra
y
color; S
y
stem: SUPL HT-ON-OFF; includes one
LED.
See OEM for
replacement.
J1258 161 Obsolete
. Carrier Canada part no. HH93AZ173-W;
g
ra
y
color; S
y
stem: SUPL HT-ON-OFF; includes one
LED.
Y594G1674
a
Replacement is bei
g
e color.
J1266 160 York Canada;
g
ra
y
color; includes EM HT LED; used in
Y594G1625.
Y594G1567
a
J1274 161 TRADELINE; S
y
stem: SUPL HT-ON-OFF; includes
one LED; used with T874G2004; used in Y594G1674.
Y594G1674
J1282 244 Obsolete
. TRADELINE; S
y
stem: SUPL HT-ON-OFF;
includes SUPL HT LED; used with T874J1069; used in
Y594J1019.
(
Recontrol
)
T8511G1021
Table 9. Q674 Subbase Cross Reference.
Model
Number
Fig.
No. Description
Q674 Trade
Replacement Remarks
a
Both the thermostat and subbase must be replaced.