- Goodman Gas-fired Warm Air Furnace User's Information Manual 2016
- Oil Fired Warm Air Furnace
- Warm Air Oil Furnace
- Warm Air Furnace Manufacturers
35
B
GAS-FIRED WARM AIR FURNACE USER’S INFORMATION MANUAL Installer - Affix this manual, Installation Guide, and Warranty adjacent to the appliance. Owner - Read and keep all product literature in a safe place for future reference. American Standard Gas Furnaces Manuals & User Guides. User Manuals, Guides and Specifications for your American Standard Gas Furnaces Furnace. Database contains 1 American Standard Gas Furnaces Manuals (available for free online viewing or downloading in PDF): User's information manual.
URNERS
Visually inspect the burner flames periodically during the heating
season. Turn on the furnace at the thermostat and allow several
minutes for flames to stabilize, since any dislodged dust will alter
the flames normal appearance. Flames should be stable, quiet,
soft, and blue (dust may cause orange tips but they must not be
yellow). They should extend directly outward from the burners with-
out curling, floating, or lifting off. Flames must not impinge on the
sides of the heat exchanger firing tubes.
I
NDUCED
D
RAFT
AND
C
IRCULATOR
B
LOWERS
The bearings in the induced draft blower and circulator blower mo-
tors are permanently lubricated by the manufacturer. No further
lubrication is required. Check motor windings for accumulation of
dust which may cause overheating. Clean as necessary.
C
ONDENSATE
T
RAP
AND
D
RAIN
S
YSTEM
(Q
UALIFIED
S
ERVICER
O
NLY
)
Annually inspect the drain tubes, drain trap, and field-supplied drain
line for proper condensate drainage. Check drain system for hose
connection tightness, blockage, and leaks. Clean or repair as
necessary.
F
LAME
S
ENSOR
(Q
UALIFIED
S
ERVICER
O
NLY
)
Under some conditions, the fuel or air supply can create a nearly
invisible coating on the flame sensor. This coating acts as an
insulator causing a drop in the flame sense signal. If the flame
sense signal drops too low the furnace will not sense flame and
will lock out. The flame sensor should be carefully cleaned by a
qualified servicer using emery cloth or steel wool. Following clean-
ing, the flame sense signal should be 1 to 6 microamps.
I
GNITER
(Q
UALIFIED
S
ERVICER
O
NLY
)
If the igniter and the surrounding air are at about 70°F and the
igniter wires are not connected to any other electrical components,
the resistance of the igniter should not exceed 200 ohms. If it does,
the igniter should be replaced.
F
LUE
P
ASSAGES
(Q
UALIFIED
S
ERVICER
O
NLY
)
The heat exchanger flue passageways should be inspected at the
beginning of each heating season. If necessary, clean the pas-
sageways as outlined below.
1. Turn OFF the electrical power and gas supply to the furnace.
2. Disconnect the gas line and remove the burner/ manifold
assembly by removing the screws securing the assembly
to the partition panel.
3. Disconnect the flue pipe system from the induced draft
blower.
Goodman Gas-fired Warm Air Furnace User's Information Manual 2016
4. Remove the induced draft blower and the drain and pressure
tap hoses from the recuperator coil front cover.
5. Remove the recuperator coil front cover to expose the coil
tubes and turbulators.
6. Remove the recuperator coil turbulators individually by slowly
pulling each turbulator forward firmly.
7. Clean the recuperator coil tubes using a long handle wire
brush, such as a gun cleaning brush.
8. Clean the primary heat exchanger tubes using a wire brush
attached to a length of high grade stainless steel cable,
such as drain cleanout cable. Attach a variable speed
reversible drill to the other end of the cable. Slowly rotate
the cable with the drill and insert it into one of the heat
exchanger tubes. While reversing the drill, work the cable
in and out several times to obtain sufficient cleaning. Repeat
for each tube.
9. Clean residue from furnace using a vacuum cleaner.
10. Replace the parts removed in the previous steps in reverse
order.
11. Turn on electrical power and gas to furnace. Check for
leaks and proper unit operation.
12. Severe heat exchanger fouling is an indication of an
operational problem. Perform the checks listed in Section
XIV, Startup Procedure and Adjustments to reduce the
chances of repeated fouling.
XX. BEFORE LEAVING AN INSTALLATION
•
Cycle the furnace with the thermostat at least three times.
Verify cooling and fan only operation.
•
Review the Owner’s Manual with the homeowner and
discuss proper furnace operation and maintenance.
•
Leave literature packet near furnace.
XXI. REPAIR & REPLACEMENT PARTS
•
When ordering any of the listed functional parts, be sure to
provide the furnace model, manufacturing, and serial
numbers with the order.
•
Although only functional parts are shown in the parts list, all
sheet metal parts, doors, etc. may be ordered by description.
•
Parts are available from your distributor.
Functional Parts List-
Gas Valve
Blower Motor
Gas Manifold
Blower Wheel
Natural Gas Orifice
Blower Mounting Bracket
Propane Gas Orifice
Blower Cutoff
Igniter
Blower Housing
Flame Sensor
Capacitor
Rollout Limit Switch
Heat Exchanger
Primary Limit Switch
Recuperator Coil
Auxiliary Limit Switch
Coil Front Cover
Pressure Switch
Integrated Control Module
Induced Draft Blower
Transformer
Door Switch
24
*
*
*
*
*
*
*
*
*
STANDARD
JUNCTION BOX
Oil Fired Warm Air Furnace
LOCATION
ALTERNATE
JUNCTION BOX
LOCATION
Junction Box Relocation
HIGH VOLTAGE!
T
O
AVOID
THE
RISK
OF
INJURY
,
ELECTRICAL
SHOCK
OR
DEATH
,
THE
FURNACE
MUST
BE
ELECTRICALLY
GROUNDED
IN
ACCORDANCE
WITH
LOCAL
CODES
OR
IN
THEIR
ABSENCE
,
WITH
THE
LATEST
EDITION
OF
THE
N
ATIONAL
E
LECTRIC
C
ODE
.
WARNING
To ensure proper unit grounding, the ground wire should run from
the furnace ground screw located inside the furnace junction box
all the way back to the electrical panel. NOTE: Do not use gas
piping as an electrical ground. To confirm proper unit grounding,
turn off the electrical power and perform the following check.
1. Measure resistance between the neutral (white) connection
and one of the burners.
2. Resistance should measure 10 ohms or less.
This furnace is equipped with a blower door interlock switch which
interrupts unit voltage when the blower door is opened for servic-
ing. Do not defeat this switch.
24 V
OLT
T
HERMOSTAT
W
IRING
NOTE: Wire routing must not interfere with circulator blower
operation, filter removal, or routine maintenance.
Low voltage connections can be made through either the right or
left side panel. Thermostat wiring entrance holes are located adja-
cent to the junction box locations in the blower compartment. Wire
routing must not to interfere with circulator blower operation, filter
removal, or routine maintenance. Refer to the following figure for
thermostat connections to the integrated control module terminal
strip.
W
W
W
Y
Y
Y
C
C
R
R
R
G
G
W
Y
C
R
G
HEATING
ROOM
THERMOSTAT
HEATING AND
COOLING ROOM
THERMOSTAT
FURNACE
FURNACE
REMOTE
CONDENSING
UNIT
Thermostat Diagram
Warm Air Oil Furnace
This furnace is equipped with a 40 VA transformer to facilitate use
with most cooling equipment. Consult the wiring diagram, located
on the blower compartment door, for further details of 115 Volt and
24 Volt wiring.
24 V
OLT
H
UMIDIFIER
The yellow wire connected to the I.D. Blower pressure switch is
powered anytime the pressure switch is closed and provides 24
VAC humidifier control. Remove the yellow wire and connect a field
supplied jumper wire with a “piggyback” terminal to the pressure
switch terminal. Reconnect the yellow wire to the “piggyback” ter-
minal on the jumper wire and then connect the 24 VAC line of the
humidifier to the stripped end of the jumper wire. Using a wire nut
or a field-supplied quick connect terminal can make this connec-
tion. The wiring must conform to all local and national codes. Con-
nect the COM side of the humidifier to the B/C terminal on the
furnace control board (or to the COM side of the 24 VAC trans-
former). DO NOT CONNECT 115VHUMIDIFIER TO THESE TERMI-
NALS.
XII. GAS SUPPLY AND PIPING
G
ENERAL
The furnace rating plate includes the approved furnace gas input
rating and gas types. The furnace must be equipped to operate on
the type of gas applied. This includes any conversion kits required
for alternate fuels and/or high altitude.
T
O
PREVENT
UNRELIABLE
OPERATION
OR
EQUIPMENT
DAMAGE
,
THE
GAS
MANIFOLD
PRESSURE
MUST
BE
AS
SPECIFIED
ON
THE
UNIT
Warm Air Furnace Manufacturers
RATING
PLATE
. O
NLY
MINOR
ADJUSTMENTS
SHOULD
BE
MADE
BY
ADJUSTING
THE
GAS
VALVE
PRESSURE
REGULATOR
.
CAUTION
Inlet gas supply pressures must be maintained within the ranges
specified below. The supply pressure must be constant and avail-
able with all other household gas fired appliances operating. The
minimum gas supply pressure must be maintained to prevent
unreliable ignition. The maximum must not be exceeded to pre-
vent unit overfiring.
Natural Gas
Minimum: 4.5' W.C. Maximum: 10.0' W.C.
Propane Gas
Minimum: 11.0' W.C. Maximum: 13.0' W.C.
Inlet Gas Supply Pressure
H
IGH
A
LTITUDE
D
ERATE
When this furnace is installed at high altitude, the appropriate High
Altitude orifice kit must be applied. This is required due to the
natural reduction in the density of both the gas fuel and combus-
tion air as altitude increases. The kit will provide the proper design
certified input rate within the specified altitude range.
High altitude kits are purchased according to the installation alti-
tude and usage of either natural or propane gas. Contact your
distributor for a tabular listing of appropriate altitude ranges and
corresponding manufacturer’s high altitude (Natural, Propane Gas,
and/or Pressure Switch) kits.
Do not derate the furnace by adjusting the manifold pressure to a
lower pressure than specified on the furnace rating plate. The
combination of the lower air density and a lower manifold pressure
will prohibit the burner orifice from drawing the proper amount of
air into the burner. This may cause incomplete combustion, flash-
back, and possible yellow tipping.
In some areas the gas supplier may artificially derate the gas in an
effort to compensate for the effects of altitude. If the gas is artifi-
cially derated, the appropriate orifice size must be determined
based upon the BTU/ft
3
content of the derated gas and the altitude.