| TUBE ROUTING |
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Furnace is shipped from factory in upflow configuration. Pressure tube and drain tube routing MUST match the diagrams below. | ||||
Condensate Trap; Factory Installed | Tube location when used in UPFLOW application | Condensate Trap on LEFT | ||
in Blower Shelf |
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| Side Optional | |
(Blower access panel removed) | BURNER ENCLOSURE |
| BURNER ENCLOSURE | |
PRESSURE REFERENCE |
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| PRESSURE REFERENCE | ||
| TUBE ASSEMBLY |
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| TUBE ASSEMBLY | ||
COLLECTOR BOX TUBE | CAP |
| CAP | |
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(PINK) | PLUG |
| PLUG | |
| COLLECTOR BOX TUBE | |||
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COLLECTOR BOX TUBE |
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COLLECTOR BOX DRAIN | (PINK) |
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(GREEN) |
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| TUBE | COLLECTOR BOX TUBE (GREEN) |
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INDUCER HOUSING (MOLDED) DRAIN TUBE | (BLUE & WHITE STRIPED) | COLLECTOR BOX DRAIN TUBE | ||
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| (BLUE & WHITE STRIPED) | ||
(BEHIND COLLECTOR BOX DRAIN TUBE) |
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| CONDENSATE TRAP | COLLECTOR BOX DRAIN TUBE |
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COLLECTOR BOX DRAIN TUBE |
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(BLUE) |
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| CONDENSATE TRAP |
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| DRAIN TUBE COUPLING |
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(RIGHT DRAIN OPTION) |
| INDUCER HOUSING DRAIN TUBE | ||
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| (VIOLET) | ||
COUPLING (LEFT DRAIN OPTION) |
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CPVC STREET ELBOWS (2) |
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FOR LEFT DRAIN OPTION |
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DRAIN TUBE |
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| Condensate Trap on | Tube location when used in DOWNFLOW application | Condensate Trap on | ||
| LEFT Side |
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| RIGHT Side | |
| COLLECTOR BOX |
| PLUG | |
CAP |
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DRAIN TUBE (BLUE) |
| CAP | ||
| PLUGGED END |
| COLLECTOR BOX DRAIN TUBE | |
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| COLLECTOR BOX DRAIN | (BLUE) | |
COLLECTOR BOX |
| TUBE |
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| (BLUE & WHITE STRIPED) | COLLECTOR BOX TUBE | ||
TUBE (GREEN) |
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| (PINK) | ||
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COLLECTOR BOX DRAIN TUBE | PLUG |
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(BLUE & WHITE STRIPED) |
| INDUCER HOUSING DRAIN | COLLECTOR BOX TUBE | |
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| (GREEN) | ||
COLLECTOR BOX |
| TUBE (VIOLET) | ||
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| COLLECTOR BOX EXTENSION TUBE | ||
EXTENSION TUBE |
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| COLLECTOR BOX |
| BURNER ENCLOSURE PRESSURE | |
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| REFERENCE TUBE ASSEMBLY | ||
CONDENSATE TRAP | EXTENSION TUBE |
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DRAIN TUBE COUPLING | CONDENSATE TRAP | |||
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BURNER ENCLOSURE PRESSURE | COLLECTOR BOX |
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TUBE (PINK) | DRAIN TUBES ROUTED IN | COLLECTOR BOX | ||
REFERENCE TUBE ASSEMBLY | ||||
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| FRONT OF GAS VALVE | EXTENSION DRAIN TUBE | |
INDUCER HOUSING DRAIN TUBE (VIOLET) |
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| GAS VALVE | |
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| Tube location when used on |
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| Tube location when used on |
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| HORIZONTAL - LEFT application |
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| HORIZONTAL - RIGHT application |
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AUXILIARY "J" BOX RELOCATED HERE |
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| COLLECTOR BOX DRAIN TUBE | COLLECTOR BOX DRAIN TUBE |
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| COLLECTOR BOX EXTENSION TUBE | ||||
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| (BLUE & WHITE STRIPED) | (BLUE) |
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PLUG |
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| COLLECTOR BOX TUBE (PINK) |
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CAP |
| COLLECTOR BOX | PLUG |
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BURNER ENCLOSURE |
| TUBE (GREEN) |
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PRESSURE REFERENCE |
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TUBE ASSEMBLY |
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COLLECTOR BOX |
| INDUCER HOUSING | CAP |
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| DRAIN TUBE | BURNER ENCLOSURE | ||
EXTENSION TUBE |
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| (VIOLET) |
| PRESSURE REFERENCE | |
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| COLLECTOR BOX |
| TUBE ASSEMBLY |
CONDENSATE TRAP |
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| DRAIN TUBE (BLUE) | COLLECTOR BOX | COLLECTOR BOX | |
| DRAIN TUBE | COLLECTOR BOX TUBE (PINK) | TUBE (GREEN) | EXTENSION TUBE |
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COLLECTOR BOX EXTENSION DRAIN TUBE | COUPLING | RELOCATE TUBE BETWEEN BLOWER | COLLECTOR BOX DRAIN TUBE | CONDENSATE TRAP |
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| SHELF AND INDUCER HOUSING FOR | (BLUE AND WHITE STRIPED) |
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| 040,060, AND 080 HEATING INPUT | INDUCER HOUSING DRAIN TUBE (VIOLET) | |
NOTE: |
| FURNACES |
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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.
→Fig. 8ÐFurnace Pressure and Drain Tubing Diagram
BURNER FLAME
(LIT. BOTTOM)
A99102
BURNER
MANIFOLD
A89020
Fig. 9ÐBurner Flame
Never use matches, candles, flame, or other sources of ignition to check for gas leakage. Use a
18. Replace main furnace door.
SECONDARY HEAT EXCHANGERS
NOTE: The condensing side (inside) of the secondary heat exchangers CANNOT be serviced or inspected. A small number of bottom outlet openings can be inspected by removing the inducer assembly. See Flushing Collector Box and Drainage System section for details on removing inducer assembly.
Step 5ÐFlushing Collector Box and Drainage System
1.Turn off gas and electrical supplies to furnace.
2.Remove main furnace door.
3.Disconnect inducer motor and pressure switch wires or connectors.
6
