User Information
5
Outdoor Humidity
Temperature Single -Paned Double-Paned
Glass Glass
+30°F 30% 50%
+20°F 20% 40%
+10°F 15% 35%
0°F 10% 30%
-10°F 5% 25%
-20°F 5% 20%
-30°F 3% 18%
P
ROPANE
(LP) G
AS
I
NSTALLATIONS
O
NLY
For furnaces operating on propane gas, please review the
following warnings before use.
T
O
AVOID
PROPERTY
DAMAGE
,
PERSONAL
INJURY
OR
DEATH
,
DUE
TO
EXPLOSION
OR
FIRE
,
INSTALL
A
GAS
DETECTING
WARNING
DEVICE
. S
INCE
THE
ODORANT
IN
PROPANE
GAS
CAN
BE
REDUCED
BY
IRON
OXIDE
(
RUST
),
A
GAS
DETECTING
WARNING
DEVICE
IS
THE
ONLY
RELIABLE
METHOD
TO
DETECT
PROPANE
GAS
LEAKS
.
WARNING
I
F
THE
GAS
FURNACE
IS
INSTALLED
IN
A
BASEMENT
,
AN
EXCAVATED
AREA
OR
CONFINED
SPACE
,
IT
IS
STRONGLY
RECOMMENDED
TO
CONTACT
A
PROPANE
SUPPLIER
TO
INSTALL
A
GAS
DETECTING
WARNING
DEVICE
IN
CASE
OF
A
GAS
LEAK
.
S
INCE
PROPANE
GAS
IS
HEAVIER
THAN
AIR
,
ANY
LEAKING
GAS
CAN
SETTLE
IN
ANY
LOW
AREAS
OR
CONFINED
SPACES
.
P
ROPANE
GAS
ODORANT
MAY
FADE
,
MAKING
THE
GAS
UNDETECTABLE
•
•
WARNING
A
N
UNDETECTED
GAS
LEAK
WILL
CREATE
A
DANGER
OF
EXPLOSION
OR
FIRE
. I
F
THE
PRESENCE
OF
GAS
IS
SUSPECTED
,
FOLLOW
THE
INSTRUCTIONS
ON
THE
COVER
OF
THIS
MANUAL
. F
AILURE
TO
DO
SO
COULD
RESULT
IN
SERIOUS PERSONAL INJURY OR DEATH.
WARNING
THERMOSTAT FUNCTIONS
There are many types and styles of thermostats but opera-
tion is usually similar. BE SURE TO BECOME FAMILIAR
WITH YOUR THERMOSTAT. The simplest type of thermo-
stat only starts and stops the furnace to maintain the de-
sired room temperature. The most widely used types will
control both heating and cooling functions and will have a
Fan Switch with Auto and ON settings. On Auto, the circulat-
ing air blower will cycle on/off with the furnace but if switched
to ON it will run continuously regardless of whether or not
heating or cooling is being provided.
In addition, there are thermostats which automatically switch
from heating to cooling mode and those with night set back
capability. The night set back, or multiple set back, type
allows for a different temperature at night or during the day
when no one is at home. Programmable thermostats will
allow for more control and tailoring of the heating and cool-
ing functions. The level of this control depends on the type
of thermostat applied.
Fan Switch
Cool/Heat
Switch
Cool/Heat
Temperature
Control Dials
Room Temperature
Thermostat
System
Switch
Fan
Switch
Action
OFF AUTO
None
COOL AUTO
System only cools, fan
cycles off and on.
COOL ON
System only cools, fan
runs all the time.
HEAT AUTO
System only heats, fan
cycles off and on.
HEAT ON
System only heats, fan
runs all the time.
OFF ON
No heating or cooling,
fan runs all the time.
If this furnace is a part of the Goodman ComfortNet™ family
of products, a ComfortNet thermostat may also be used to
control this furnace. This thermostat is a programmable type
that allows the setting of different temperatures during the
night and during the day. It may also be set to automatically
switch from heating to cooling. The fan switch may also be
set to ON or Auto. The ComfortNet™ system also includes
advanced set up and diagnostic features which is explained
in the ComfortNet User Manual provided with the control.
F
URNACE
O
PERATION
E
LECTRICAL
COMPONENTS
ARE
CONTAINED
IN
BOTH
COMPARTMENTS
. T
O
AVOID
PERSONAL
INJURY
,
ELECTRICAL
SHOCK
OR
DEATH
,
DO
NOT
REMOVE
ANY
INTERNAL
COMPARTMENT
COVERS
. C
ONTACT
A
QUALIFIED
SERVICER
AT
ONCE
IF
AN
ABNORMAL
CONDITION
IS
NOTICED
.
WARNING
Keep both doors in place except for inspection and mainte-
nance. An interlock switch prevents furnace operation if the
blower door is not in place.
FURNACE START-UP
1. Close the external manual gas shut-off valve.
2. Turn off the electrical power to the furnace.
3. Set the room thermostat to the lowest possible setting.
4. Remove the burner compartment door.