Fig. 4—Downflow Tube Configuration
(Left-Hand Trap Installation)
A99042
COLLECTOR BOX
LOWER PRESSURE
TUBE
COLLECTOR BOX
UPPER PRESSURE
TUBE
COLLECTOR BOX
DRAIN TUBE
CONDENSATE
TRAP
INDUCER HOUSING
DRAIN TUBE
BURNER ENCLOSURE
PRESSURE REFERENCE
TUBE ASSEMBLY
CAP
PLUG OR CAP
Fig. 5—Downflow Tube Configuration
(Right-Hand Trap Installation)
A99043
LOWER
COLLECTOR BOX
PRESSURE TUBE
UPPER
COLLECTOR BOX
PRESSURE TUBE
COLLECTOR BOX
DRAIN TUBE
COLLECTOR BOX
EXTENSION
DRAIN TUBE
CONDENSATE
TRAP
INDUCER HOUSING
DRAIN TUBE
DRAIN TUBE
COUPLING
CAP
PLUG OR CAP
BURNER ENCLOSURE
PRESSURE REFERENCE
TUBE ASSEMBLY
Fig. 6—Condensate Trap
A98648
1
⁄
2
OD
INDUCER HOUSING
DRAIN CONNECTION
1
⁄
4
OD
COLLECTOR BOX TO
TRAP RELIEF PORT
5
⁄
8
OD
COLLECTOR BOX
DRAIN CONNECTION
1
⁄
2
-IN. PVC OR CPVC
SCREW HOLES FOR
DOWNFLOW (OPTIONAL)
1 4
2
7 8
1 8
7
WIRE TIE
GUIDES
(WHEN USED)
1 2
1
3 4
1
3 4
FRONT VIEW
SIDE VIEW
FURNACE
DOOR
CONDENSATE
TRAP
78
1 4
26
4
FURNACE
SIDE
1 2
1
SIDE VIEW
FRONT VIEW
(SHOWN ON RIGHT-HAND SIDE. MAY
BE INSTALLED ON LEFT-HAND SIDE.)
FIELD
DRAIN
CONN
TABLE 1—CONDENSATE TRAP TUBING LENGTH (IN.)
TUBING MUST NOT KINK OR SAG
Trim and route tubing to prevent kinking or sagging. Clamp drain tubes to prevent leakage.
TUBE
FACTORY-SUPPLIED
LENGTH
036080 AND 048080
060080
Left-Side Trap*
Right-Side Trap*
Left-Side Trap*
Right-Side Trap*
Collector Box Exten-
sion Drain Tube
17
0 (Remove extension
tube and coupling.)
11 (6)
0 (Remove extension
tube and coupling.)
12 (5)
Inducer Tube
20
9 (11)
18 (2)
9 (11)
20 (0)
Upper Collector Box
Pressure Tube
26
26 (0)
19 (7)
26 (0)
19 (7)
*Trim tube to this length. (Length to trim off.)
—7—
Summary of Contents for 351DAS
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