Honeywell T874 Product Data page 60

T874 MULTISTAGE THERMOSTATS AND Q674 SUBBASES
Model Fig.
Number No.
G1444 160 Obsolete. ROCA logo; °C scaleplate; used with
Q674J1027.
G1451 155 Obsolete. BDP multi-logo; part no. HH641502; used with
Q674F1212; used in Y594G1245.
G1469 194 Obsolete. No logo; Addison special; used with
Q674F1345; used in Y594G1344.
G1485 163 Obsolete. AAF logo; part no. 4ELN-7839; °F/°C
scaleplate; 10°F differential between H1 and H2 for night
setback and momentary RESET system switch position;
used with Q674C1199.
G1493 167 Obsolete. Honeywell logo; Rheem part no. 41-20797-18;
used with Q674F1360.
G1501 195 Obsolete. Coleman logo; part no. 3600-375; changeover
in cooling mode; used with Q674F1378.
G1535 163 Obsolete. AAF/Snyder General logo; 4ELN7839 °F/°C
scaleplate; 10°F differential between H1 and H2 for night
setback and momentary RESET system switch position;
used with Q674C1199.
G1543 194 Obsolete. Addison logo; Weather King part no. 8403-
197; used with Q674F1345; used in Y594G1328.
G1568 160 Obsolete. Luxaire logo; part no. 026-00068-000; °C
scaleplate; used with Q674J1126; used in Y594G1351.
G1576 169 Obsolete. Coleman logo; part no. 3600-373; changeover
in heating and cooling mode; used with Q674F1402;
used in Y594G1377.
G1584 73 Obsolete. No logo; Friedrich part no. AT5784; 8°F
(4.4°C) differential between H1 and H2; used with
Q674C1223.
G1592 155 Obsolete. Arcoaire logo; used with Q674F1212; used in
Y594G1385.
G1600 199 Obsolete. Honeywell logo; meets DoD specifications;
used with Q674F1428; used in Y594G1401.
G1618 73 Obsolete. Honeywell logo; 12°F differential between H1
and H2 for night setback; used with Q674C1256.
G1626 167 Honeywell logo; used with Q674F1436; used in
Y594G1526.
G1642 227 Honeywell logo; TRADELINE model; meets DoD
specifications; used with Q674F1444; used in
Y594G1419.
a
Both the thermostat and subbase must be replaced.
60-2485—8
Table 8. T874 Cross Reference.
Description
60
Trade Model
Replacement
Replacement has °F
Y594G1567
a
scaleplate.
T874G1246 or
a
V594G1252 a
Wiring differences (old=new):
Y594G1252 a
Y1=O, C=X, W1=Y1, X=L.
No night setback or
Y594G1393
a
momentary reset switch.
T8611G1004 Includes night setback; no
(programmable) momentary reset switch.
Y594G1526
a
Y594G1252 Wiring differences (old=new):
a
L1=L; changeover in cooling
only.
No night setback or
Y594G1393
a
momentary reset switch.
T8611G1004 Includes night setback.
(programmable)
Wiring differences (old=new):
Y594G1252
a
Y1=O, C=X, W1=Y, X=L.
Replacement has °F
Y594G1367 a
scaleplate.
Y594G1633
a
Wiring differences (old=new):
Y594H1012 a
Y1=O, Y2=Y, L=R, R=none;
L-R jumper required; no night
setback.
T8611G1004 Includes night setback.
(programmable)
T874G1246 or
a
Y594G1252 a
Wiring differences (old=new):
Y594G1419 a
jumper W1-Y1.
Wiring differences (old=new):
Y594H1012
a
Y1=O, Y2=Y, L=R, R=none;
L-R jumper required; no night
setback.
T8600C1162 Wiring differences (old=new):
(programmable) L=R, W=O; W-Y jumper
required; includes night
setback.
None
Y594G1419 a
Remarks