Honeywell T874 - Page 55

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.