SERVICE AND TECHNICAL SUPPORT MANUAL
Gas Furnace: (F/G)9MVE
Specifications subject to change without notice.
440 04 4801 04
13
Figure 5
Furnace Setup Switch Description
RCL
1
LHT
2
LHR
3
C/E
4
CFM
5
TST
6
OFF
7
DLY
8
SW1
SETUP
SWITCH
SWITCH
NAME
NORMAL
POSITION
DESCRIPTION
OF
USE
SW
1
1
S
tatus
C
ode
R
eco
v
ery
O
FF
T
urn
ON
to
retrie
v
e
u
p
to
7
stored
status
codes
for
troubleshooting
assistance
when
R
thermostat
lead
is
disconnected.
SW
1
2
Low
Heat
Only
(A
da
p
ti
v
e
Heat
Mode
when
SW
1
2
is
O
FF)
O
FF
W
hen
SW
1
2
is
O
FF
allows
two-stage
o
p
eration
with
a
single
stage
thermostat.
T
urn
ON
when
using
two-stage
thermostat
to
allow
Low
Heat
o
p
eration
when
R
to
W
/
W
1
closes
and
High
Heat
o
p
eration
when
R
to
W
/
W
1
and
W
2
close.
SW
1
3
Low
Heat
R
ise
A
d
j
ustment
O
FF
T
urn
ON
to
increase
Low
Heat
airflow
by
18
p
ercent.
T
his
com
p
ensates
for
increased
return
air
tem
p
erature
caused
with
by
p
ass
humidifier.
SW
1
4
C
omfort/
E
fficiency
A
d
j
ustment
ON
T
urn
ON
to
decrease
Low
Heat
airflow
by
a
pp
ro
x
imately
7
p
ercent
and
High
Heat
air
flow
by
a
pp
ro
x
imately
1
0 p
ercent
for
ma
x
imum
comfort.
SW
1
5
CF
M
p
er
ton
ad
j
ust
O
FF
T
urn
ON
for
4
00 CF
M
p
er
ton
, T
urn
O
FF
for
35
0 CF
M
p
er
ton.
S
ee
also
SW
2.
SW
1
6
C
om
p
onent
S
elf
T
est
O
FF
T
urn
ON
to
initiate
C
om
p
onent
S
elf
T
est
for
troubleshooting
assistance
when
R
thermostat
lead
is
disconnected.
T
urn
O
FF
when
S
elf
T
est
is
com
p
leted.
SW
1
7
&
SW
1
8
B
lower
O
FF
delay
ON
or
O
FF
B
lower
Off
D
elay
time
–
ad
j
ustable
90
seconds
to
18
0
seconds.
S
ee
table
in
A
d
j
ustments
section
or
refer
to
unit
wiring
diagram.
TWN
1
CFM
2
3
4
5
6
7
8
SW2
CF
AC
SW
2
1
T
wining
O
FF
A
llows
for
selection
of
furnace
Main
(
O
FF)
or
S
econdary
(
ON
)
when
T
winned
furnace
setu
p
is
re
q
uired.
S
ee
k
it
instructions
for
further
directions
on
installation
and
setu
p
.
SW
2
2
CF
M
p
er
ton
A
d
j
ust
O
FF
A
llows
additional
CF
M
p
er
ton
selections
when
used
with
SW
1
5
325
CF
M
p
er
ton
(
nominal
)
when
SW
2
2
ON
and
SW
1
5
O
FF
35
0 CF
M
p
er
ton
(
nominal
)
when
SW
2
2
O
FF
and
SW
1
5
O
FF
37
0 CF
M
p
er
ton
(
nominal
)
when
SW
2
2
ON
and
SW
1
5
ON
4
00 CF
M
p
er
ton
(
nominal
)
when
SW
2
2
O
FF
and
SW
1
5
ON
S
ee
A
ir
D
eli
v
ery
T
ables
for
model
s
p
ecific
CF
M
v
s.
static
p
ressure
SW
2
6
,
7
,
8
AC
(C
ooling
A
irflow
)
O
FF
T
he
AC
setu
p
switches
select
desired
cooling
or
high
stage
cooling
(
two-stage
units
)
airflow.
S
ee
C
ooling
A
ir
D
eli
v
ery
T
ables
for
s
p
ecific
switch
settings.
SW
2
3
,
4
,
5
CF
(C
ontinuous
F
an
)
O
FF
T
he
CF
setu
p
switches
select
desired
C
ontinuous
F
an
A
irflow
T
he
CF
switch
p
osition
is
the
low
cooling
airflow
selection
for
two-stage
cooling
units.
T
he
CF
M
v
alues
are
shown
in
the
A
ir
D
eli
v
ery
T
ables
below
for
SW
2
settings.
SW
2
3
,
4
,
5
cannot
be
set
for
airflow
higher
than
SW
2
6
,
7
,
8.
S
ee
C
ontinuous
F
an
A
ir
F
low
T
able
for
s
p
ecific
switch
settings.
BASED ON 350 CFM/TON (Factory Default: SW1
−
5 = OFF, SW2
−
2 = OFF)
Model
Size
ON
ON
ON
ON
ON
ON
ON
ON
5
4
3
5
4
3
5
4
3
5
4
3
5
4
3
5
4
3
5
4
3
5
4
3
040-10
525
525
700
875
875
875
875
875
040-12
525
525
700
875
1050
1050
1050
1050
060-12
525
525
700
875
1050
1050
1050
1050
060-14
525
525
700
875
1050
1225
1225
1225
080-16
525
525
700
875
1050
1225
1400
1400
080-20
700
700
875
1050
1225
1400
1750
1750
100-20
700
700
875
1050
1225
1400
1750
1750
120-22
875
700
875
1050
1225
1400
1750
1925