T874 MULTISTAGE THERMOSTATS AND Q674 SUBBASES
55
60-2485—8
D1801
45, 208 Trol-A-Temp by Honeywell logo; 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 logo; part no. 50059; adjustable
interstage between H1 and H2 and between C1 and C2;
includes Allen wrench and screws to lock cover; field
adjustable range stops; °F/°C scaleplate.
T874D1165
Replacement has a 2°F fixed
interstage differential between
H1 and H2 and between C1
and C2; replacement has °F
scaleplate.
D1827
45, 208 Trol-A-Temp by Honeywell logo; 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 logo; Goodman part no. CHT 90-120;
used with Q674B1000; used in Y594D1321.
T874D1165
D1850
44
Honeywell logo; Carrier part no. HH621606.
T874D1165
D1868
44
Bard logo; part no. 8405-031; H1 and H2 heat
anticipators factory set at 0.25A; 5°F interstage
differential between H1 and H2 and between C1 and C2;
includes Allen wrench and screws to lock cover; field
adjustable range stops.
T874D1165
Replacement has 2°F fixed
interstage differential between
H1 and H2 and between C1
and C2.
D1876
44
Obsolete. AAF/Snyder General logo; part no.
4ELN6981A; °F/°C scaleplate.
T874D1165
Replacement has °F
scaleplate.
D1892
44
Obsolete. Climate-Tel logo.
T874D1165
D1918
224,
225
Obsolete. AAF/Snyder General logo; °F/°C scaleplate;
no cooling anticipation; used with Q674E1312, C1298;
66804407.
See OEM for
replacement.
D1926
226
Obsolete. AAF/Snyder General logo; °F/°C scaleplate;
no cooling anticipation; used with Q674G1120;
66804406.
See OEM for
replacement.
D1934
44
Bard logo.
T874D1165
D1942
82
Honeywell logo; TRADELINE model; used with
Q674E1403; used in Y594D1347; designed to replace
York part no. 2TH04701024.
Y594D1347
a
D1959
44
Rheem part no. 41-21444-01.
T874D1165
D1967
44
Obsolete. Desert Aire logo.
T874D1165
D1975
224,
225
Obsolete. McQuay part no. 066816603; °F/°C
scaleplate; no cooling anticipation.
See OEM for
replacement.
D1983
226
Obsolete. McQuay part no. 066816602; °F/°C
scaleplate; no cooling anticipation; used with
Q674G1120.
See OEM for
replacement.
D1991
51, 53 Carrier logo; Premier White® color; °C scaleplate.
T874D1165
a
Set H1 anticipator for total
current draw of fan and stage
1 primary; replacement has °F
scaleplate.
D2007
44
Ultra-Zone logo.
T874D1165
D2023
44
Honeywell logo; TRADELINE model; Premier White®
color; °C scaleplate; includes locking cover; used with
Q674A-K.
T874D1165
Replacement has °F
scaleplate and is beige.
D2031
82
Obsolete. Honeywell logo; no cover; used with
Q674E1049 and TG504A1025; used in Y594D1354.
T874D1165 or
Y594D1354
D2049
45, 72,
55, 66,
184
Obsolete. Carrier Heat Pump System Control logo; 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.