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T874 MULTISTAGE THERMOSTATS AND Q674 SUBBASES
35 60-2485—8
G1026 Lennox lo
g
o; fast c
y
cle performance; sta
g
e 2 heat;
fixed anticipator sta
g
e 1 heat and cool;
chan
g
eover with coolin
g
; used with Q672E1019,
F1067.
None See subbase description for
replacement information.
G1034 Westin
g
house lo
g
o; ad
j
ustable anticipator sta
g
e 2
heat; fixed anticipator sta
g
e 1 heat and cool;
chan
g
eover with coolin
g
; used with Q672F1091,
F1141, F1257 or Q672J1013, J1062.
Y594G1252 Wirin
g
differences
(
old=new
)
:
W=W2.
G1042 York lo
g
o; fixed anticipator on all sta
g
es heat and
cool; chan
g
eover with coolin
g
; used with
Q672J1021.
Y594G1567
G1059 TRADELINE; no anticipator sta
g
e 2 heat; fixed
anticipator sta
g
e 1 heat and cool; chan
g
eover with
coolin
g
; used with Q672J1039 outdoor reset.
Y594G1161 Desi
g
ned for use on General
Electric heat pumps.
G1067 Lennox lo
g
o; no. P-8-11222; fast c
y
cle
performance; sta
g
e 2 heat; fixed anticipator sta
g
e
1 heat and cool; chan
g
eover with coolin
g
; used
with Q672E1142, F1083.
See subbase description for
replacement information.
G1075 Carrier lo
g
o; ad
j
ustable anticipator sta
g
e 2 heat;
fixed anticipator sta
g
e 1 heat and cool;
chan
g
eover with coolin
g
; used with Q672J1054,
L1052.
See subbase description for
replacement information.
G1083 Ad
j
ustable anticipator sta
g
e 2 heat; fixed
anticipator sta
g
e 1 heat and cool; chan
g
eover with
coolin
g
; includes shunt to b
y
pass sta
g
e 2
anticipator with auxiliar
y
heat rela
y
s; used with
Q672F1158.
Y594G1252
G1091 Lennox lo
g
o; same as T872G1026 except meets
DoD specs.
See subbase description for
replacement information.
G1109 Tappan lo
g
o; no. 080-13708-52; ad
j
ustable
anticipator sta
g
e 1 heat and cool; chan
g
eover with
coolin
g
; used with Q672F1117.
Y594G1252 Wirin
g
differences
(
old=new
)
: C=X.
G1117 Chan
g
eover; used with Q672F1125. Y594G1252 Wirin
g
differences
(
old=new
)
: C=X.
G1125 Lennox lo
g
o; no. 63A0401; Celsius scale; isolated
auxiliar
y
heat power circuit; fast c
y
cle anticipator
sta
g
e 2 heat.
None
G1133 Rheem lo
g
o; no. RXMT-B71; ad
j
ustable
anticipator sta
g
e 2 heat; fixed anticipator sta
g
e 1
heat and cool; chan
g
eover with coolin
g
; includes
shunt to b
y
pass sta
g
e 2 anticipator with auxiliar
y
heat rela
y
s; used with Q672F1158, F1232.
Y594G1252
G1141 Ruud lo
g
o; ad
j
ustable anticipator sta
g
e 2 heat;
fixed anticipator sta
g
e 1 heat and cool;
chan
g
eover with coolin
g
; includes shunt to b
y
pass
sta
g
e 2 anticipator with auxiliar
y
heat rela
y
s; used
with Q672F1158.
Y594G1252
G1158 Carrier lo
g
o; same as T872G1075. Except DoD
st
y
lin
g
.
See subbase description for
replacement information.
G1166 BDP used with Q672F1125. Y594G1252 Wirin
g
differences
(
old=new
)
: C=X.
G1174 BDP used with Q672F1125. Y594G1252 Wirin
g
differences
(
old=new
)
: C=X.
G1182 Carrier; no. HH07AT071C; Celsius scale; used
with Q672L1052, J1054.
See subbase description for
replacement information.
G1190 Tappan; no. B13708-57; used with Q672L1078 for
8 and 10 ton heat pumps with 2 compressors.
None
Table 6. T872-T874 Thermostat Cross Reference.
Model Number Description
T874 Trade
Replacement
a
Remarks
a
When replacin
g
a T872 Thermostat and Q672 Subbase, alwa
y
s replace both the thermostat and the subbase.