User Guide

T874 MULTISTAGE THERMOSTATS AND Q674 SUBBASES
60-2485—848
A1481 44 Obsolete. Hone
y
well lo
g
o; Carrier part no. HH621602;
includes lockin
g
cover and non-ad
j
ustable ran
g
e stops
set at 72°F
(
max. heat
)
and 78°F
(
min. cool
)
.
T874A1036
A1507 44 Obsolete. Climate-Tel lo
g
o; includes Allen wrench and
screws to lock cover and non-ad
j
ustable ran
g
e stops set
at 72°F
(
max. heat
)
and 78°F
(
min. cool
)
.
T874A1176
A1523 224,
225
Obsolete
. AAF/Sn
y
der General lo
g
o; part no.
066804404; °F/°C scaleplate; no coolin
g
anticipation;
used with Q674E1312, C1298.
See OEM for
replacement.
A1549 224,
225
Obsolete
. McQua
y
lo
g
o; part no. 066816601; no coolin
g
anticipation; used with Q674E1312, C1298.
See OEM for
replacement.
A1556 51, 53 Carrier lo
g
o; part no. HH07AT164-W; °C scaleplate;
Premier White® color; includes Allen wrench and
screws to lock cover; used with Q674B.
T874A1036
a
Replacement has °F
scaleplate; replacement is
bei
g
e.
A1572 224,
225
Obsolete
. McQua
y
lo
g
o; part no. 066816611; Premier
White® color; °F/°C scaleplate; no coolin
g
anticipation.
See OEM for
replacement.
A1580 91 California Economizer lo
g
o; Premier White® color; heat
anticipator factor
y
set at 1.2A.
T874A1036
A1598 224,
225
McQua
y
lo
g
o; part no. 073319001; Premier White®
color; °F/°C scaleplate; includes Allen wrench, screws to
lock cover and AAF insert.
See OEM for
replacement.
A1614 44 Hone
y
well lo
g
o; TRADELINE® model; °C scaleplate;
Premier White® color; includes Allen wrench and
screws to lock cover; used with Q674B.
T874A1036 Replacement has °F
scaleplate; replacement is
bei
g
e.
A1622 44 Obsolete
. York lo
g
o; part no. 2TH04703224A; includes
Allen wrench and screws to lock cover and non-
ad
j
ustable ran
g
e stops set at 72°F
(
max. heat
)
and 78°F
(
min. cool
)
.
T874A1010
T874B 1-sta
g
e heat, 2-sta
g
e cool.
B1001 44 Obsolete. Hone
y
well lo
g
o. T874B1019
B1019 44 Hone
y
well lo
g
o; TRADELINE model; includes Allen
wrench and screws to lock cover.
T874B1019
B1027 44 Obsolete
. Westin
g
house lo
g
o. T874B1019
B1035 44, 46 Obsolete. Trane lo
g
o; used with Q674B1018, B1075;
used in Y594B1026, B1034.
T874B1019
B1043 44 Obsolete
. Hone
y
well lo
g
o; °C scaleplate. T874B1019 Replacement has °F
scaleplate.
B1050 44 Lennox lo
g
o; part no. 13F0201; °F/°C scaleplate. T874B1019 Replacement has °F
scaleplate.
B1068 44 Hone
y
well lo
g
o; Hone
y
well Canada TRADELINE model;
°C scaleplate; includes Allen wrench and screws to lock
cover.
T874B1019 Replacement has °F
scaleplate.
B1076 88 Obsolete
. Lennox Power Saver Two-Speed lo
g
o; part
no. 91C7401; °F/°C scaleplate; used with Q674E1155.
T874B1019 Replacement has °F
scaleplate.
B1084 44 Obsolete
. Lennox Two-Speed lo
g
o; part no. 13F0301;
°C scaleplate.
T874B1019 Replacement has °F
scaleplate.
B1092 44 Obsolete
. Hone
y
well lo
g
o; Heil Quaker part no.
HQ521389HW.
T874B1019
B1100 88 Obsolete
. Janitrol lo
g
o; part no. CHTS36-60; °F/°C
scaleplate; used with Q674E1338; used in Y594B1042.
T874B1019 Replacement has °F
scaleplate.
B1118 44 Hone
y
well lo
g
o; °C scaleplate; used with
Q674A-E, G.
T874B1019 Replacement has °F
scaleplate.
Table 8. T874 Cross Reference.
Model
Number
Fig.
No. Description
Trade Model
Replacement Remarks
a
Both the thermostat and subbase must be replaced.