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T874 MULTISTAGE THERMOSTATS AND Q674 SUBBASES
55 60-2485—8
D1801 45, 208 Trol-A-Temp b
y
Hone
y
well lo
g
o; H1 and H2 anticipators
set at 0.10A; used with Q674B1463, D1115.
None See Trol-A-Temp for
replacement.
D1819 44 Marv Air Com Stat lo
g
o; part no. 50059; ad
j
ustable
intersta
g
e between H1 and H2 and between C1 and C2;
includes Allen wrench and screws to lock cover; field
ad
j
ustable ran
g
e stops; °F/°C scaleplate.
T874D1165 Replacement has a 2°F fixed
intersta
g
e differential between
H1 and H2 and between C1
and C2; replacement has °F
scaleplate.
D1827 45, 208 Trol-A-Temp b
y
Hone
y
well lo
g
o; Premier White® color;
H1 and H2 heat anticipators set at 0.10A; used with
Q674B1471, D1123.
None See Trol-A-Temp.
D1843 45 Obsolete
. Janitrol lo
g
o; Goodman part no. CHT 90-120;
used with Q674B1000; used in Y594D1321.
T874D1165
D1850 44 Hone
y
well lo
g
o; Carrier part no. HH621606. T874D1165
D1868 44 Bard lo
g
o; part no. 8405-031; H1 and H2 heat
anticipators factor
y
set at 0.25A; 5°F intersta
g
e
differential between H1 and H2 and between C1 and C2;
includes Allen wrench and screws to lock cover; field
ad
j
ustable ran
g
e stops.
T874D1165 Replacement has 2°F fixed
intersta
g
e differential between
H1 and H2 and between C1
and C2.
D1876 44 Obsolete
. AAF/Sn
y
der General lo
g
o; part no.
4ELN6981A; °F/°C scaleplate.
T874D1165 Replacement has °F
scaleplate.
D1892 44 Obsolete
. Climate-Tel lo
g
o. T874D1165
D1918 224,
225
Obsolete. AAF/Sn
y
der General lo
g
o; °F/°C scaleplate;
no coolin
g
anticipation; used with Q674E1312, C1298;
66804407.
See OEM for
replacement.
D1926 226 Obsolete
. AAF/Sn
y
der General lo
g
o; °F/°C scaleplate;
no coolin
g
anticipation; used with Q674G1120;
66804406.
See OEM for
replacement.
D1934 44 Bard lo
g
o. T874D1165
D1942 82 Hone
y
well lo
g
o; TRADELINE model; used with
Q674E1403; used in Y594D1347; desi
g
ned to replace
York part no. 2TH04701024.
Y594D1347
a
D1959 44 Rheem part no. 41-21444-01. T874D1165
D1967 44 Obsolete
. Desert Aire lo
g
o. T874D1165
D1975 224,
225
Obsolete. McQua
y
part no. 066816603; °F/°C
scaleplate; no coolin
g
anticipation.
See OEM for
replacement.
D1983 226 Obsolete
. McQua
y
part no. 066816602; °F/°C
scaleplate; no coolin
g
anticipation; used with
Q674G1120.
See OEM for
replacement.
D1991 51, 53 Carrier lo
g
o; Premier White® color; °C scaleplate.
T874D1165
a
Set H1 anticipator for total
current draw of fan and sta
g
e
1 primar
y
; replacement has °F
scaleplate.
D2007 44 Ultra-Zone lo
g
o. T874D1165
D2023 44 Hone
y
well lo
g
o; TRADELINE model; Premier White®
color; °C scaleplate; includes lockin
g
cover; used with
Q674A-K.
T874D1165 Replacement has °F
scaleplate and is bei
g
e.
D2031 82 Obsolete
. Hone
y
well lo
g
o; no cover; used with
Q674E1049 and TG504A1025; used in Y594D1354.
T874D1165 or
Y594D1354
D2049 45, 72,
55, 66,
184
Obsolete
. Carrier Heat Pump S
y
stem Control lo
g
o; part
no. HH07AT236; °F/°C scaleplate; used with Q674B-D,
Q674G; used in Y594D.
T874D1165 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.