3 − If exhaust piping must be run up a side wall to position above snow accumulation or other obstructions, pip- ing must be supported every 3 feet (.9m) as shown in figure 22. Refer to figure 42 for proper piping method. When exhaust piping must be run up an outside wall, any reduction in exhaust pipe size must be done after the final elbow.
sate trap should extend below the unit. A 5−1/2" service clearance is required for the condensate trap. Refer to fig- ure 44 for condensate trap locations.
CONDENSATE TRAP LOCATIONS
(Unit shown in upflow position)
Inches(mm)
UNCONDITIONED
SPACE
OUTSIDE WALL
PROVIDE SUPPORT
FOR EXHAUST LINES
EVERY 36" (914)
FIELD−PROVIDED
REDUCER MAY BE
REQUIRED TO
ADAPT LARGER
VENT PIPE SIZE TO
TERMINATION
1/2" (13) FOAM INSULATION IN UNCONDITIONED SPACE
12" (305) Max. for 2" (51) Unless Supported
SIZE TER-
MINATION
PIPE PER
TABLE 8.
12" (305) ABOVE AVERAGE SNOW ACCUMULATION
1/2" (13) FOAM INSULATION
Horizontal | Horizontal |
left and | right and |
optional | optional |
downflow | downflow |
Optional | Optional |
upflow | upflow |
SIDE VIEW
NON−DIRECT VENT WALL RING TERMINATION
(15F74)
FIGURE 42
G61MP NON−DIRECT VENT APPLICATION
USING EXISTING CHIMNEY
| SIZE TERMINATION |
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| STRAIGHT−CUT OR | ||||||||
| PIPE PER TABLE 8. |
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| ANGLE−CUT IN DIRECTION | |||||||||
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| OF ROOF SLOPE | |||||||||
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| 3" − 8" |
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| EXHAUST VENT |
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| (76mm− |
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| 1/2" (13mm) |
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| 203mm) |
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| WEATHERPROOF |
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| MINIMUM12" |
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| INSULATION |
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| (305mm)12" (304mm)ABOVE |
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| ABOVE AVERAGE |
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| AVERAGE SNOW |
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| SNOW ACCUMULATION |
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| ACCUMULATION |
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| SHOULDER OF FITTINGS |
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| PROVIDE SUPPORT |
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| OF PIPE ON TOP PLATE |
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| SHEET |
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| METAL TOP |
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| PLATE |
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| 3" − 8" | ||||
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| (76mm− | ||||
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| 203mm) | ||||
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| INSULATE |
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| TO FORM |
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| EXTERIOR |
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| SEAL |
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| PORTION OF |
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| CHIMNEY |
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NOTE − Do not discharge exhaust gases directly into any chimney or vent stack. If ver- tical discharge through an existing unused chimney or stack is required, insert piping inside chimney until the pipe open end is above top of chimney and terminate as illus- trated. In any exterior portion of chimney, the exhaust vent must be insulated.
FIGURE 43
Condensate Piping
This unit is designed for either right- or
FIGURE 44
1 − Determine which side condensate piping will exit the unit. Remove plugs from the condensate collar at the appropriate location on the side of the unit.
NOTE − The condensate trap is factory−shipped with two rubber O−rings and two rubber clean−out caps installed. Check to make sure that these items are in place before installing the trap assembly.
2 − Install condensate trap onto the condensate collar. Use provided HI/LO screws to secure two upper flanges of the trap to the collar. Use provided sheet metal screw to secure bottom trap flange to side of unit. DO NOT apply glue to secure condensate trap to cabinet. All other joints must be glued. See figure 45.
NOTE − In upflow and downflow applications, con- densate trap must be installed on the same side as exhaust piping.
CAUTION
DO NOT use a power driver to tighten screws which secure condensate trap to cabinet. Screws should be hand−tightened using a screw driver to avoid the possibility of damage to the trap assembly.
3 − The condensate trap provided with the unit is manufactured using ABS material. Use ABS to PVC transition solvent cement to glue a field−provided PVC coupling or PVC pipe to the trap. Install a tee and vent pipe near the trap.
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