Embed Size (px)
Citation preview
December 2008
A/TUD2B060ACV3V
SERVICE PROCESSES
80% Communicating Furnace2This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
A/TUD2B060ACV3V SERVICE PROCCESSESS
15 of the most common service items have been identified and recommended procedures have been developed for each service process.
The process times are for the removal only and typically the replacement time is similar. The time data was developed with having all necessary tools at hand and does not include different furnace application.
December 2008
How to remove the:
SERVICE PROCESSES
Blower Access Door
Blower Assembly
Blower Motor
Blower WheelIntegrated Furnace Control (IFC)
Draft Inducer
In-Shot Burner
Flame Roll-Out Switch
Flame Sensor
Hot Surface Ignitor
Heat Exchanger
Gas Valve
Pressure Switch
Transformer
User Interface
December 2008
Removing Blower Access DoorA/TUD2B060ACV3V
Recommended Number Of Technicians : 1Tools: NoneTime: 0.2 minutes
80% Communicating Furnace5This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Blower Access Door
• To remove the blower access door, turn both blower door access knobs outward a ¼ turn to disengage latch
Return
December 2008
Removal of User InterfaceA/TUD2B060ACV3V
Recommended Number Of Technicians : 1Tools: NoneTime: 0.5 minutes
80% Communicating Furnace7This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of User Interface
• Remove the blower access door. (Turn both blower door access knobs outward a ¼ turn to disengage latch)
80% Communicating Furnace8This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of User Interface
IFC
User Interface
Door Interlock Switch
80% Communicating Furnace9This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of User Interface
• The User Interface is removed by depressing the clip on the right side of the assembly
• Once the clip is disengaged gently lift the control out of the bracket
• Disconnect the ribbon cable from the IFC
Return
December 2008
Removal of Integrated Furnace Control (IFC)A/TUD2B060ACV3V
Recommended Number Of Technicians : 1Tools: 5/16” Nut Driver, Needle Nose PliersTime: 3.1 minutes
80% Communicating Furnace11This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of IFC
• Remove the blower access door. (Turn both blower door access knobs outward a ¼ turn to disengage latch)
80% Communicating Furnace12This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of IFC
Disconnect wiring
Remove user interface
Remove IFC platform from unit
Remove user interface bracket
80% Communicating Furnace13This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of IFC
Cut stand-off pins
Lift IFC from platform
Return
December 2008
Removal of TransformerA/TUD2B060ACV3V
Recommended Number Of Technicians : 1Tools: 5/16” Nut DriverTime: 0.3 minutes
80% Communicating Furnace15This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Transformer
• Remove the blower access door(Turn both blower door access knobs outward a ¼ turn to disengage latch)
80% Communicating Furnace16This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Transformer
Transformer
IFC
Door Interlock Switch
80% Communicating Furnace17This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Transformer
• Locate the transformer mounted on the IFC platform
• Remove the four wires connected to the transformer
• The transformer’s high and low voltage connection points are labeled to match the corresponding wire color
• Using a 5/16” nut driver, remove the two screws securing the transformer to the IFC platform
Return
December 2008
Removal of Blower AssemblyA/TUD2B060ACV3V
Recommended Number Of Technicians : 1Tools: 1/4”,5/16” and 3/8” Nut DriversTime: 7.5 minutes
80% Communicating Furnace19This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Blower Assembly
• Remove the blower access door(Turn both blower door access knobs outward a ¼ turn to disengage latch)
80% Communicating Furnace20This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Blower Assembly
Transformer
IFC
User Interface
Personality Module
Door Interlock Switch
These parts will be removed to get to the Blower Assembly
80% Communicating Furnace21This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Blower Assembly
Disconnect wiringRemove the User Interface
Remove IFC platform from unit
Remove the User Interface bracket
80% Communicating Furnace22This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Blower AssemblyRemove both 3/8” screws attaching
the blower housing to the furnace blower deck
Remove blower from furnace by sliding the blower out of furnace
Return
December 2008
Removal of Blower WheelA/TUD2B060ACV3V
Recommended Number Of Technicians : 1Tools: 1/4”,5/16” and 3/8” Nut Drivers and
a 6” inch adjustable wrenchTime: 9.4 minutes
80% Communicating Furnace24This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Blower Wheel
• Remove the blower access door. (Turn both blower door access knobs outward a ¼ turn to disengage latch)
80% Communicating Furnace25This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Blower Wheel
Transformer
IFC
User Interface
Personality Module
Door Interlock Switch
These parts will be removed to get to the Blower Wheel
80% Communicating Furnace26This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Blower Wheel
Disconnect wiringRemove the User Interface
Remove IFC platform from unit
Remove the User Interface bracket
80% Communicating Furnace27This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Blower WheelRemove both 3/8” screws attaching
the blower housing to the furnace blower deck
Remove blower from furnace by sliding the blower out of furnace
80% Communicating Furnace28This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Blower Wheel
• Loosen wheel hub set screw to free it from motor shaft
80% Communicating Furnace29This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Blower Wheel
Remove the four bolts attaching the motor support bracket to the blower assembly
Lift motor from blower assembly
80% Communicating Furnace30This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Blower Wheel
• Using a ¼” nut driver, remove the two screws on each side of the blower housing that secures the blower housing wrapper to the side plates as shown in Figure 5
• While using one hand to gently pull back on the blower housing wrapper, use your other hand to remove the blower wheel as shown in Figure 6
Figure 5
Figure 6
Return
December 2008
Removal of Blower MotorA/TUD2B060ACV3V
Recommended Number Of Technicians : 1Tools: 1/4”,5/16” and 3/8” Nut Drivers and
a 6” adjustable wrenchTime: 9 minutes
80% Communicating Furnace32This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Blower Motor
• Remove the blower access door. (Turn both blower door access knobs outward a ¼ turn to disengage latch
80% Communicating Furnace33This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Blower Motor
Transformer
IFC
User Interface
Personality Module
Door Interlock Switch
These parts will be removed to get to the Blower Motor
80% Communicating Furnace34This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Blower Motor
Disconnect wiringRemove the User Interface
Remove IFC platform from unit
Remove the User Interface bracket
80% Communicating Furnace35This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Blower MotorRemove both 3/8” screws attaching
the blower housing to the furnace blower deck
Remove blower from furnace by sliding the blower out of furnace
80% Communicating Furnace36This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Blower Motor
• Loosen wheel hub set screw to free it from motor shaft
80% Communicating Furnace37This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Blower Motor
Remove the 4 bolts attaching the motor support bracket to the blower assembly
Lift motor from blower assembly
Return
December 2008
Removal of Heat ExchangerA/TUD2B060ACV3V
Recommended Number Of Technicians : 1Tools: 1/4”,5/16” and 3/8” Nut Drivers,
Adjustable Wrench and Channel Lock PliersTime: 10 minutes
80% Communicating Furnace39This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Heat Exchanger
• Remove the blower access door(Turn both blower door access knobs outward a ¼ turn to disengage latch)
• Using a 5/16” nut driver, remove the two screws securing the burner access door in place
80% Communicating Furnace40This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Heat Exchanger
Remove all wiring from the following:1. Gas Valve2. Pressure Switch3. Draft Inducer Assembly4. Limit Switch5. Both Roll-Out Switches6. Flame Sensor7. Hot Surface Ignitor8. Ground 9. Electrical Junction Box
Note: Retain all parts, they will be re- used on replacement Heat Exchanger
1
2
3
5
5
67
8
9 4
80% Communicating Furnace41This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Heat Exchanger
• Turn OFF electrical power to the furnace
• Lock out power supply• Remove field supplied electric
conduit• Remove furnace electrical
junction box by removing the two 5/16 inch screws that secure the junction box to the side of the furnace cabinet
80% Communicating Furnace42This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Heat Exchanger
• Disconnect the gas valve control plug by applying pressure to the clips on both sides of the connector
• Turn OFF the gas supply • Disconnect the gas supply
pipe from the gas valve using a backup wrench
• Remove the gas valve by turning the valve counterclockwise with the proper wrench as shown
80% Communicating Furnace43This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Heat Exchanger
• Disconnect the limit switch by removing both ¼” connectors
• Using a ¼” nut driver, remove both screws
• Slide out both the limit switch and limit switch shieldNote: Not all models have limit switch shields *UD2B080ACV3V – No shield
80% Communicating Furnace44This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Heat Exchanger
Disconnect the pressure switch wire harness by removing all four ¼” spade connectors from the front
and back of the dual pressure switch
Remove the tubing at the warm header connection point
Remove the pressure switch and mounting
bracket by removing the two 5/16” screws on the
side of the furnace
80% Communicating Furnace45This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Heat Exchanger
• Disconnect the line voltage wiring connected to the draft inducer motor
• Using a 5/16” nut driver, remove the 5 screws securing the draft inducer assembly to the warm header
• Take care not to damage the gasket when removing the draft inducer assemblyRecommendation: Order a new gasket with replacement heat exchanger
80% Communicating Furnace46This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Heat Exchanger
Remove the burner assembly by first disconnecting the wire harness1. Disconnect both flame roll
out switches by removing ¼” spade terminals
2. Using a ¼” nut driver remove the screw securing the ground wire from the burner assembly
3. Disconnect the flame sensor wire
4. Disconnect the ignitor at the wire harness plug by applying pressure to both sides of the plug while sliding apart
11
2
34
80% Communicating Furnace47This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Heat Exchanger
Remove four 5/16” screws securing gas manifold to
burner assembly
Remove both flame roll out switches by removing the ¼” screw
Remove burner top pan by removing the
four 5/16” screws that secure it to the burner
assembly
Remove the two 5/16” screws which secure the burner retaining-bracket
80% Communicating Furnace48This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal Of Heat Exchanger
Lift the burners out of the bottom retaining bracket
Remove the ¼” screw securing the flame sensing rod
Remove the ¼” screw securing the
ignitor Remove the remaining 5/16” screws that secure
the burner assembly to the furnace
80% Communicating Furnace49This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Heat Exchanger
Remove the four 5/16” screws securing the
furnace top plate
Remove the forward most 5/16” screws
securing the both sides of the furnace to the
blower deck
Loosen the two 5/16” screws on both sides
of furnace cabinet
Note: Loosening the screws on the both sides allows the cabinet to be spread outward. This will provide room to slide the heat exchanger out
80% Communicating Furnace50This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Heat Exchanger
• Remove all 5/16” screws from both sides and across the bottom of the heat exchanger’s intermediate panel
80% Communicating Furnace51This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Heat Exchanger
• Using the draft inducer hole in the warm header and one of the lower heat-exchanger openings, slide the heat exchanger forward
• The rear of the heat-exchanger is attached with silicon and might require rocking the heat exchanger up and down to break this bond
• Once the heat exchanger cells are clear of the rear bracket, slide the heat exchanger out, bottom first
Return
December 2008
Removal of Pressure SwitchA/TUD2B060ACV3V
Recommended Number Of Technicians : 1Tools: 5/16” Nut DriverTime: 1.1 minutes
80% Communicating Furnace53This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Pressure Switch
• Remove the blower access door(Turn both blower door access knobs outward a ¼ turn to disengages latch)
• Using a 5/16” nut driver, remove the two screws securing the burner access door in place
80% Communicating Furnace54This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Pressure Switch
Disconnect the pressure switch wire harness by removing all four ¼” spade connectors from the front
and back of the dual pressure switch
Remove the tubing at the warm header connection point
Remove the pressure switch and mounting
bracket by removing the two 5/16” screws on the
side of the furnace
Return
December 2008
Removal of Draft InducerA/TUD2B060ACV3V
Recommended Number Of Technicians : 1Tools: 1/4”,5/16” Nut DriversTime: 1.6 minutes
80% Communicating Furnace56This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Draft Inducer
• Remove the blower access door. (Turn both blower door access knobs outward a ¼ turn to disengage latch)
• Using a 5/16” nut driver, remove the two screws securing the burner access door in place
80% Communicating Furnace57This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Draft Inducer
• Disconnect the line voltage wiring connected to the draft inducer motor
• Using a 5/16” nut driver, remove the 5 screws securing the draft inducer assembly to the warm header
• Take care not to damage the gasket when removing the draft inducer assemblyRecommendation: Order a new gasket with replacement draft inducer
Return
December 2008
Removal of Gas ValveA/TUD2B060ACV3V
Recommended Number Of Technicians : 1Tools: 5/16” Nut Driver, Adjustable Wrench andPliersTime: 1.1 minutes
80% Communicating Furnace59This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Gas Valve
• Remove the blower access door(Turn both blower door access knobs outward a ¼ turn to disengage latch)
• Using a 5/16” nut driver, remove the two screws securing the burner access door in place
80% Communicating Furnace60This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal Of Gas Valve
• Disconnect the gas valve control wire harness by applying pressure to the clips on both sides of the wire harness plug and sliding the two pieces apart
• Turn OFF the gas supply• Disconnect the gas supply
piping from the gas valveNote: Always use a back-up wrench
• Remove the gas valve by turning the valve counterclockwise with the proper wrench as shownNote: Always use a back up wrench
Return
December 2008
Removal of Flame Roll Out SwitchA/TUD2B060ACV3V
Recommended Number Of Technicians : 1Tools: 1/4”and 5/16” Nut Drivers Time: 0.2 minutes
80% Communicating Furnace62This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Flame Roll Out Switch
• Remove the blower access door(Turn both blower door access knobs outward a ¼ turn to disengage latch)
• Using a 5/16” nut driver, remove the two screws securing the burner access door in place
80% Communicating Furnace63This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Flame Roll Out Switch
There are 2 flame roll out switches; one located on each
side of the burner assembly
Remove the two ¼” spade connectors
Using a ¼” nut driver remove the screw that secures the switch to
the burner assembly
Return
December 2008
Removal of Flame SensorA/TUD2B060ACV3V
Recommended Number Of Technicians : 1Tools: 1/4”and 5/16” Nut DriversTime: 0.3 minutes
80% Communicating Furnace65This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Flame Sensor
• Remove the blower access door(Turn both blower door access knobs outward a ¼ turn to disengage latch)
• Using a 5/16” nut driver, remove the two screws securing the burner access door in place
80% Communicating Furnace66This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Flame Sensor
The flame sensing rod is located between the last burner and the next to last burner
on the left side of the assembly
Disconnect the sensor by
removing the ¼” spade connector
Remove the single ¼” screw that secures the sensor to the
burner assembly
Return
December 2008
Removal Of Hot Surface IgnitorA/TUD2B060ACV3V
Recommended Number Of Technicians : 1Tools: 1/4” and 5/16” Nut DriversTime: 0.4 minutes
80% Communicating Furnace68This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of Hot Surface Ignitor
• Remove the blower access door(Turn both blower door access knobs outward a ¼ turn to disengage latch)
• Using a 5/16” nut driver, remove the two screws securing the burner access door in place
80% Communicating Furnace69This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal Of Hot Surface Ignitor
The hot surface ignitor is located on the right side of the burner assembly; next to the first burner
Remove the single ¼” screw that secures the ignitor to the
burner assembly
Disconnect the hot surface ignitor by pressing on the both
sides of the connector
Return
December 2008
Removal of In-Shot BurnerA/TUD2B060ACV3V
Recommended Number Of Technicians : 1Tools: 1/4”,5/16” Nut DriversTime: 1.5 minutes
80% Communicating Furnace71This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of In-Shot Burner
• Remove the blower access door.(Turn both blower door access knobs outward a ¼ turn to disengage latch)
• Using a 5/16” nut driver remove the two screws securing the burner access door in place
80% Communicating Furnace72This
info
rmat
ion
is p
rope
rty
of T
rane
and
Am
eric
an S
tand
ard.
It i
s fo
r int
erna
l use
onl
y an
d is
con
fiden
tial a
nd p
ropr
ieta
ry.
Removal of In-Shot Burner
• Turn OFF the gas supply• Disconnect the gas supply
pipe from the gas valveNote: Always use a back up wrench
• Remove all four 5/16” screws securing the gas manifold to burner assembly
• Remove the two ¼” screws that secure the burner retaining-bracket
Return
