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T874 MULTISTAGE THERMOSTATS AND Q674 SUBBASES
60-2485—860
G1444 160 Obsolete. ROCA lo
g
o; °C scaleplate; used with
Q674J1027.
Y594G1567
a
Replacement has °F
scaleplate.
G1451 155 Obsolete
. BDP multi-lo
g
o; part no. HH641502; used with
Q674F1212; used in Y594G1245.
T874G1246
a
or
V594G1252
a
G1469 194 Obsolete. No lo
g
o; Addison special; used with
Q674F1345; used in Y594G1344.
Y594G1252
a
Wirin
g
differences
(
old=new
)
:
Y1=O, C=X, W1=Y1, X=L.
G1485 163 Obsolete
. AAF lo
g
o; part no. 4ELN-7839; °F/°C
scaleplate; 10°F differential between H1 and H2 for ni
g
ht
setback and momentar
y
RESET s
y
stem switch position;
used with Q674C1199.
Y594G1393
a
No ni
g
ht setback or
momentar
y
reset switch.
T8611G1004
(
pro
g
rammable
)
Includes ni
g
ht setback; no
momentar
y
reset switch.
G1493 167 Obsolete
. Hone
y
well lo
g
o; Rheem part no. 41-20797-
18; used with Q674F1360.
Y594G1526
a
G1501 195 Obsolete. Coleman lo
g
o; part no. 3600-375; chan
g
eover
in coolin
g
mode; used with Q674F1378.
Y594G1252
a
Wirin
g
differences
(
old=new
)
:
L1=L; chan
g
eover in coolin
g
onl
y
.
G1535 163 Obsolete. AAF/Sn
y
der General lo
g
o; 4ELN7839 °F/°C
scaleplate; 10°F differential between H1 and H2 for ni
g
ht
setback and momentar
y
RESET s
y
stem switch position;
used with Q674C1199.
Y594G1393
a
No ni
g
ht setback or
momentar
y
reset switch.
T8611G1004
(
pro
g
rammable
)
Includes ni
g
ht setback.
G1543 194 Obsolete
. Addison lo
g
o; Weather Kin
g
part no. 8403-
197; used with Q674F1345; used in Y594G1328.
Y594G1252
a
Wirin
g
differences
(
old=new
)
:
Y1=O, C=X, W1=Y, X=L.
G1568 160 Obsolete
. Luxaire lo
g
o; part no. 026-00068-000; °C
scaleplate; used with Q674J1126; used in Y594G1351.
Y594G1367
a
Replacement has °F
scaleplate.
G1576 169 Obsolete
. Coleman lo
g
o; part no. 3600-373; chan
g
eover
in heatin
g
and coolin
g
mode; used with Q674F1402;
used in Y594G1377.
Y594G1633
a
G1584 73 Obsolete. No lo
g
o; Friedrich part no. AT5784; 8°F
(
4.4°C
)
differential between H1 and H2; used with
Q674C1223.
Y594H1012
a
Wirin
g
differences
(
old=new
)
:
Y1=O, Y2=Y, L=R, R=none;
L-R
j
umper re
q
uired; no ni
g
ht
setback.
T8611G1004
(
pro
g
rammable
)
Includes ni
g
ht setback.
G1592 155 Obsolete
. Arcoaire lo
g
o; used with Q674F1212; used in
Y594G1385.
T874G1246
a
or
Y594G1252
a
G1600 199 Obsolete. Hone
y
well lo
g
o; meets DoD specifications;
used with Q674F1428; used in Y594G1401.
Y594G1419
a
Wirin
g
differences
(
old=new
)
:
j
umper W1-Y1.
G1618 73 Obsolete
. Hone
y
well lo
g
o; 12°F differential between H1
and H2 for ni
g
ht setback; used with Q674C1256.
Y594H1012
a
Wirin
g
differences
(
old=new
)
:
Y1=O, Y2=Y, L=R, R=none;
L-R
j
umper re
q
uired; no ni
g
ht
setback.
T8600C1162
(
pro
g
rammable
)
Wirin
g
differences
(
old=new
)
:
L=R, W=O; W-Y
j
umper
re
q
uired; includes ni
g
ht
setback.
G1626 167 Hone
y
well lo
g
o; used with Q674F1436; used in
Y594G1526.
None
G1642 227 Hone
y
well lo
g
o; TRADELINE model; meets DoD
specifications; used with Q674F1444; used in
Y594G1419.
Y594G1419
a
Table 8. T874 Cross Reference.
Model
Number
Fig.
No. Description
Trade Model
Replacement Remarks
a
Both the thermostat and subbase must be replaced.