14.Check furnace operation through 2 complete heat operating cycles. Check area below inducer housing, vent pipe, and condensate trap to ensure no condensate leaks occur. If leaks are found, correct the problem.
WARNING: FIRE OR EXPLOSION HAZARD
Failure to follow the safety warnings exactly could result in serious injury, death, or property damage.
Never test for gas leaks with an open flame. Use a commercially available soap solution made specifically for the detection of leaks to check all connections. A fire or explosion may result causing property damage, per- sonal injury, or loss of life.
15. Check for gas leaks.
2.Remove main furnace door.
3.Disconnect igniter wire connection.
4.Check igniter resistance.
a.Using an ohm meter, check resistance across both igniter leads in connector.
b.Cold reading should be between 45 ohms and 90 ohms.
c.If ohm reading is higher than 110 ohms, igniter is cracked and must be replaced.
5.Remove igniter assembly.
CAUTION: Allow igniter to cool before removal. Nor- mal operating temperatures exceed 2000°F.
16. Replace main furnace door.
VI. SERVICING HOT SURFACE IGNITER
The igniter does NOT require annual inspection. Check igniter resistance before removal.
1. Turn off gas and electrical supplies to furnace.
TUBE ROUTING
a.Do not remove igniter from bracket while assembly is in furnace. Using a 1/4 in. nutdriver, remove screw secur- ing bracket and igniter assembly to bottom of burner box. The screw in the bracket is always located toward outside of burner box. The screw may be hidden by inlet
Furnace is shipped from factory in upflow configuration. Pressure tube and drain tube routing MUST match the diagrams below.
Condensate Trap; Factory Installed
in Blower Shelf
(Blower access panel removed)
COLLECTOR BOX TUBE
(PINK)
COLLECTOR BOX TUBE
(GREEN)
INDUCER HOUSING (MOLDED) DRAIN TUBE (BEHIND COLLECTOR BOX DRAIN TUBE)
COLLECTOR BOX DRAIN TUBE
(BLUE)
COUPLING (LEFT DRAIN OPTION)
DRAIN TUBE
Tube location when used in UPFLOW application | Condensate Trap on LEFT | |
|
| Side Optional |
BURNER ENCLOSURE |
| BURNER ENCLOSURE |
PRESSURE REFERENCE |
| PRESSURE REFERENCE |
TUBE ASSEMBLY |
| |
| TUBE ASSEMBLY | |
CAP |
| CAP |
|
| |
PLUG | COLLECTOR BOX TUBE | PLUG |
| ||
|
| |
COLLECTOR BOX DRAIN | (PINK) |
|
|
| |
TUBE | COLLECTOR BOX TUBE (GREEN) |
|
(BLUE & WHITE STRIPED) | COLLECTOR BOX DRAIN TUBE | |
|
| (BLUE & WHITE STRIPED) |
CONDENSATE TRAP | COLLECTOR BOX DRAIN TUBE |
|
|
| |
| (BLUE) |
|
| ||
CONDENSATE TRAP | ||
DRAIN TUBE COUPLING | ||
| ||
(RIGHT DRAIN OPTION) | INDUCER HOUSING DRAIN TUBE | |
| ||
| (VIOLET) |
CPVC STREET ELBOWS (2)
FOR LEFT DRAIN OPTION
Condensate Trap on | Tube location when used in DOWNFLOW application | Condensate Trap on | ||
LEFT Side |
|
| RIGHT Side | |
| COLLECTOR BOX |
| PLUG | |
CAP |
|
| ||
DRAIN TUBE (BLUE) |
| CAP | ||
| PLUGGED END |
| COLLECTOR BOX DRAIN TUBE | |
|
|
| ||
|
| COLLECTOR BOX DRAIN | (BLUE) | |
COLLECTOR BOX |
| TUBE |
| |
| (BLUE & WHITE STRIPED) | COLLECTOR BOX TUBE | ||
TUBE (GREEN) |
| |||
|
| (PINK) | ||
|
|
| ||
COLLECTOR BOX DRAIN TUBE | PLUG |
|
| |
(BLUE & WHITE STRIPED) |
| INDUCER HOUSING DRAIN | COLLECTOR BOX TUBE | |
|
| (GREEN) | ||
COLLECTOR BOX |
| TUBE (VIOLET) | ||
|
| |||
|
| COLLECTOR BOX EXTENSION TUBE | ||
EXTENSION TUBE |
|
| ||
| COLLECTOR BOX |
| BURNER ENCLOSURE PRESSURE | |
|
| REFERENCE TUBE ASSEMBLY | ||
CONDENSATE TRAP | EXTENSION TUBE |
| ||
DRAIN TUBE COUPLING | CONDENSATE TRAP | |||
|
| |||
BURNER ENCLOSURE PRESSURE | COLLECTOR BOX |
|
| |
TUBE (PINK) | DRAIN TUBES ROUTED IN | COLLECTOR BOX | ||
REFERENCE TUBE ASSEMBLY | ||||
|
| FRONT OF GAS VALVE | EXTENSION DRAIN TUBE | |
INDUCER HOUSING DRAIN TUBE (VIOLET) |
|
| GAS VALVE | |
|
|
| ||
| Tube location when used on |
| Tube location when used on |
|
| HORIZONTAL - LEFT application |
| HORIZONTAL - RIGHT application |
|
|
|
|
|
|
COLLECTOR BOX DRAIN TUBE | COLLECTOR BOX DRAIN TUBE | COLLECTOR BOX EXTENSION TUBE | |
(BLUE & WHITE STRIPED) | (BLUE) | ||
COLLECTOR BOX TUBE (PINK) | |||
PLUG |
| ||
|
|
CAP | COLLECTOR BOX | PLUG | AUXILIARY "J" BOX RELOCATED HERE |
BURNER ENCLOSURE | TUBE (GREEN) |
| |
|
| ||
PRESSURE REFERENCE |
|
| |
TUBE ASSEMBLY |
|
| |
COLLECTOR BOX | INDUCER HOUSING | CAP | |
DRAIN TUBE | |||
EXTENSION TUBE | BURNER ENCLOSURE | ||
(VIOLET) | PRESSURE REFERENCE | ||
| |||
|
| TUBE ASSEMBLY |
CONDENSATE TRAP |
| COLLECTOR BOX |
|
|
| DRAIN TUBE (BLUE) | COLLECTOR BOX | COLLECTOR BOX | |
| DRAIN TUBE | COLLECTOR BOX TUBE (PINK) | TUBE (GREEN) | EXTENSION TUBE |
|
|
| ||
COLLECTOR BOX EXTENSION DRAIN TUBE | COUPLING | RELOCATE TUBE BETWEEN BLOWER | COLLECTOR BOX DRAIN TUBE | CONDENSATE TRAP |
|
| SHELF AND INDUCER HOUSING FOR | ||
|
| (BLUE AND WHITE STRIPED) |
| |
|
| 040,060, AND 080 HEATING INPUT | INDUCER HOUSING DRAIN TUBE (VIOLET) | |
NOTE: |
| FURNACES |
| |
|
|
| ||
|
|
|
|
1.All tubing must be connected securely and routed to avoid kinks and traps.
2.Pressure tubing must always slope away from pressure switch to collector box connection as shown.
3. | |
prevent a trap. Refer to the Installation Instructions for further details. |
|
A00308
