PLUG |
|
CAP |
|
COLLECTOR BOX |
|
DRAIN TUBE (BLUE |
|
& WHITE STRIPED) |
|
COLLECTOR BOX |
|
TUBE (PINK) |
|
COLLECTOR BOX |
|
TUBE (GREEN) |
|
INDUCER HOUSING |
|
(MOLDED) DRAIN |
|
TUBE (BEHIND |
|
COLLECTOR BOX |
|
DRAIN TUBE) |
|
COLLECTOR BOX |
|
DRAIN TUBE (BLUE) | CONDENSATE |
| |
| TRAP |
| |
| |
DRAIN TUBE |
|
COUPLING (LEFT |
|
DRAIN OPTION) |
|
DRAIN TUBE
DRAIN TUBE | |
ELBOWS (2) FOR | COUPLING (RIGHT |
LEFT DRAIN OPTION | DRAIN OPTION) |
A01030
Fig. 5 - Factory-Shipped Upflow Tube Configuration
(Shown with Blower Access Panel Removed)
!CAUTION
UNIT DAMAGE HAZARD
Failure to follow this caution may result in noise or furnace component failure.
The blower wheel should not be dropped or bent as balance will be affected.
g.Clean wheel per instructions on degreaser cleaner. Do not get degreaser in motor.
9.Reassemble motor and blower wheel by reversing items 8b through 8f. Ensure wheel is positioned for proper rotation. Tighten setscrew to between
NOTE: Be sure to attach ground wire to blower housing.
10.Reinstall blower assembly in furnace.
11.Reinstall control box, transformer, and door switch as- sembly on blower shelf.
12.Reinstall condensate trap and tubing if previously removed.
a.Reinstall condensate trap in hole in blower shelf.
b.Connect condensate trap drain tubes. See Fig. 5 or tubing diagram on main furnace door for proper tube location.
(1.) Connect 1 tube (blue or blue and white striped) from collector box.
(2.) Connect 1 tube (violet or unmarked) from inducer housing.
(3.) Connect 1 tube (relief port, green or pink) from collector box.
NOTE: Ensure tubes are not kinked or pinched, as this will affect operation.
c.Connect field drain to condensate trap.
13.Reconnect wires.
Refer to furnace wiring diagram and connect thermostat leads if previously disconnected. (See Fig. 16.)
NOTE: Refer to Table 3 for motor speed lead reconnection if leads were not identified before disconnection.
! CAUTION | 58MEC | |
UNIT DAMAGE HAZARD | ||
|
Failure follow this caution may result in unit component damage.
Heating air speed selection MUST be adjusted to provide proper temperature rise as specified on the rating plate.
Table 3 – Speed Selection
COLOR | SPEED | FACTORY | |
ATTACHED TO | |||
|
| ||
Gray | 5 | Cool | |
Yellow | 4 | Spare | |
Blue | 3 | ||
Orange | 2 | Spare | |
Red | 1 | Low Heat/Cont | |
Fan | |||
|
| ||
|
|
|
!WARNING
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury or death.
Blower access door switch opens
14.Turn on electrical supply. Manually close blower access door switch. Use a piece of tape to hold switch closed. Check for proper rotation and speed changes by performing a component
15.If furnace is operating properly, remove tape to release blower access door switch, replace blower access door, and replace main furnace door.
Step 3 — Cleaning Burners
The following items should be performed by a qualified service technician. If the burners develop an accumulation of light dirt or dust, they may be cleaned by using the following procedure:
1.Turn off gas and electrical supplies to furnace.
2.Remove main furnace door.
3.Remove burner box cover.
4.Using backup wrench, disconnect gas supply pipe from fur- nace gas control valve.
5