Honeywell T874 - Page 56

T874 MULTISTAGE THERMOSTATS AND Q674 SUBBASES
60-2485—8 56
D2056 44 Obsolete. ComStat logo; part no. 50056; °F/°C
scaleplate; adjustable interstage on both heating and
cooling; includes locking cover and field-adjustable
locking levers.
T874D1165 Replacement has °F
scaleplate and 2°F fixed
differential in heating and
cooling.
D2064 53 Obsolete
. Carrier Weathermaker; part no. HH07AT209;
stage 1 and 2 heat anticipator factory set 0.1A; taupe
color; used with Q674E1445; used in Y594D1412.
T874D1165 Set stage 1 heat anticipator for
total current draw of fan and
stage 1 heat primary.
Replacement is beige.
D2072 53 Obsolete
. Carrier Zone Perfect; part no. HH07AT208;
taupe color; used with Q674E1445; used in Y594D1420.
T874D1165 Set stage 1 heat anticipator for
total current draw of fan and
stage 1 heat primary.
Replacement is beige.
D2080 139 Obsolete
. Hydroheat logo. T874D1165/
Q674B1018
a
Replacement system switch:
HEAT-OFF-COOL; no LEDs.
D2098 44 Obsolete. Honeywell logo; °F scaleplate; one setpoint
lever; used with Q674D1008; used in Y594D1438.
T874D1165 Replacement has °F
scaleplate and two setpoint
levers
D2106 44 Obsolete
. Honeywell logo; °C scaleplate; one setpoint
lever; used with Q674D1008; used in Y594D1446.
T874D1165 Replacement has °F
scaleplate and two setpoint
levers.
D2114 44 Obsolete
. Bard logo; °C scaleplate. T874D1165 Replacement has °F
scaleplate.
D2122 224,
225
Obsolete
. McQuay T874D2023 Replacement has °C
scaleplate.
T874D1165 Replacement has °F
scaleplate.
D2130 226 Obsolete
. McQuay See OEM for
replacement.
D2148 44 Obsolete
. Dry Aire Systems logo; °F/°C scaleplate. T874D1165
D2155 139 Hydroheat logo; Premier White® color; °F/°C scaleplate;
used with Q674F1634.
T874D1165/
Q674B1018
a
Replacement system switch:
HEAT-OFF-COOL; no LEDs.
D2163 208 Obsolete
. Amana logo; part no. P1217501F; °F/°C
scaleplate.
T874D1165
D2171 44 Obsolete
. Amana logo; part no. P1217701F; °F/°C
scaleplate.
T874D1942
D2189 44 Armstrong logo; part no. 01142A024; °F/°C scaleplate;
includes Air Ease insert.
T874D1165
D2197 44 Liebert logo; part no. 138968P3; °F/°C scaleplate;
interstage differential between H1 and H2 and between
C1 and C2; includes Allen wrench and screws to lock
cover; field-adjustable locking levers.
T874D1165
D2205 44 Aaon logo; Premier White® color; °F/°C scaleplate. T874D1165
T874E 0-stage heat, 2-stage cool.
E1008 44 Obsolete
. Honeywell logo. T874E1016
E1016 44 Honeywell logo; TRADELINE model; includes Allen
wrench and screws to lock cover; field-adjustable
locking levers.
T874E1016
E1024 44 Obsolete
. Westinghouse logo. T874E1016
E1032 44 Lennox logo; part no. 13F0901; °F/°C scaleplate. T874E1016 Replacement has °F
scaleplate.
E1040 72 Obsolete
. Trane logo; used with Q674C1009; used in
Y594E1015.
T874E1016
Table 8. T874 Cross Reference.
Model
Number
Fig.
No. Description
Trade Model
Replacement Remarks
a
Both the thermostat and subbase must be replaced.