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OPTIONAL BLOWER INSTALLATION INSTRUCTIONS
Installing Blower Using Three-Prong Plug
1. Install furnace according to Installation Instructions and Owner's
Manual.
2. Refer to Drawing for measurements to locate two mounting holes
on wall surface above furnace.
On Solid Wall
3a. After locating mounting holes, attach two #10 x 1 1/2-inch screws
provided in blower kit into wall. Do not completely tighten screwheads
to wall, leave a 7/16-inch gap between screwheads and wall.
On Sheet Rock Wall
3b. After locating mounting holes, drill two 5/16-inch diameter holes
into wall. Insert the two plastic expansion anchors into holes. Insert
two #10 x 1 1/2-inch screws provided in blower kit into two plastic
expansion anchors. Do not completely tighten screwhead to plastic
expansion anchors, leave a 7/16-inch gap between screwheads
and plastic expansion anchors. Refer to
Figure 12.
4. At the top of outer casing remove one screw from center clearance
hole that attaches outer casing to header assembly. Also, remove
two screws that attach bottom of outer casing to inner casing.
5. Pull the outer casing forward approximately 1 inch away from
wall surface.
6. Remove four 8 x 3/8-inch screws that attach blower front to blower
housing. Separate blower front from blower housing. Remove
blower housing by disconnecting fan switch wire assembly from
power cord and motor wire.
Caution: When removing blower front be careful not to damage
motor coil wires. Damaged coil wires will disable blower function.
7. Position blower housing on top of header assembly and route three-
prong cord set between left side of outer casing and inner casing.
Caution: Blower cord set routing is important. Cord set should
be in proper location to avoid being overheated. Incorrect routing
of cord set may result in damage to cord set.
8. Replace the outer casing to the wall surface.
9. Attach outer casing to header assembly.
Attention:
The center
clearance hole will not be used. The two outside clearance holes
will be used to attach outer casing to header assembly, one screw
from Step 4 and one screw supplied in hardware package. Refer
to
Figure 11.
Figure 11
10. Attach outer casing to inner casing with two screws from Step 4.
11. Align key hole slots on back of blower housing with the two screws
attached to wall. Position blower housing flush with wall surface
and on top of outer casing. Complete tightening blower housing
screws from Step 3a or 3b to wall.
12. Attach caps and plugs from blower housing and blower front.
13. Attach blower front to blower housing with four 8 x 3/8-inch screws
from Step 6.
14. Installation of optional blower assembly is completed.
Caution
:
When installing blower housing onto wall be careful
motor coil is not damaged.
Installing Blower With Hard Wiring
1. When facing the wall opening, install 120 volt electrical outlet
junction box inside wall opening on left wall stud approximately
12 inches above header plate.
2. Refer to Drawing for measurements to locate access hole for
electrical wiring on wall surface.
3. After locating access hole, drill a 1/2-inch hole into wall.
4.
Route enough field wiring from 120 volt electrical outlet junction box
through 1/2 inch access hole in wall for connection to blower housing.
5. Install furnace according to Installation Instructions and Owner's
Manual.
6. Refer to Drawing for measurements to locate two mounting holes
on wall surface above the furnace.
On Solid Wall
7a. After locating mounting holes, attach two #10 x 1 1/2-inch screws
provided in blower kit into wall. Do not completely tighten screwheads
to wall, leave a 7/16-inch gap between screwheads and wall.
On Sheet Rock Wall
7b. After locating mounting holes, drill two 5/16-inch diameter holes
into wall. Insert two plastic expansion anchors into holes. Insert
two #10 x 1 1/2-inch screws provided in blower kit into two plastic
expansion anchors. Do not completely tighten screwhead to plastic
expansion anchors, leave a 7/16-inch gap between screwheads
and plastic expansion anchors. Refer to
Figure 12.
Figure 12
8. Remove three prong cord set from blower housing.
9. Remove four 8 x 3/8-inch screws that attach blower front to blower
housing. Separate blower front from blower housing. Remove
blower housing by disconnecting fan switch wire assembly from
power cord and motor wire.
10. Position blower housing on top of header assembly.
11. Route 120 volt field wiring into blower housing through cord set
hole on back of blower housing.
12. Refer to wiring diagram to make wiring connections inside blower
housing. Be sure to follow all local and National electrical codes
when making field wiring connections.
13. Align key hole slots on back of blower housing with two screws
attached to wall. Position blower housing flush with wall surface
and on top of outer casing. Complete tightening blower housing
screws from Step 7a or 7b to wall.
14. Attach caps and plugs from blower housing and blower front.
15. Attach blower front to blower housing with four 8 x 3/8-inch screws
from Step 9.
16. Installation of optional blower assembly is completed.
GWTB2W-1 FOR MODELS
GWT-25W, GWT-35W, GWT-50W
