All cementing of joints should be done according to the
specifications outlined in ASTM D 2855.
1 - Measure and cut vent pipe to desired length.
2 - Debur and chamfer end of pipe, removing any ddges or rough edges. If end is not chamfered, edge of pipe may remove cement fTomfitting socket and result in a leaking joint.
3 - Clean and dry surfaces to be joined.
4 - Test fit joint and mark depth of fitting on outside of pipe.
5 - Uniformly applyliberal coat of PVC primer for PVC or ABS cleaner for ABS to inside socket surface of fit-
ting and male end of pipe to depth of fitting socket.
6 - Promptly apply solvent cement to end of pipeand in- side socket surface of fitting. Cement should be ap- plied lightly but uniformly to inside of socket. Take care to keep excess cement out of socket. Apply second coat to end of pipe.
NOTE - Time is critical at this stage. Do not allow pnmer to dry before applying cement.
7 - Immediately after applying last coat of cement to pipe, and while both inside socketsurface and end of pipe are wet with cement, forcefully insert end of pipe into socket until it bottoms out. Turn pipe 1/4 turn dur- ing assembly (but not after pipe is fully inserted) to distribute cement evenly.
NOTE - Assembly should be completed within 20 seconds after last application of cement. Hammer blows should not be used when inse_ng pipe.
8 - After assembly, wipe excess cement from pipe at end of fitting socket.A properlymade jointwillshowa bead around itsentire perimeter. Any gaps may indi- cate a defective assembly due to insufficientsol- vent.
9 - Handle joints carefully until completely set.
Iventingractl es
The thickness of construction through which vent!air in- take pipes may be installed is a minimum of 3 inches (76
mm)and a maximum of 24 inches (610 mm). If a G32 fur- nace replaces a furnace which was commonly vented
with another gas appliance, the size of the existing vent pipe for that gas appliance must be checked. Without the heat of the original furnace flue products, the existing vent pipe is probably oversized for the single water heater or other appliance. The vent should be checked for proper draw with the remaining appliance,
Intake Piping
1 - Cement intakepipingin slip connectorlocated at top of unit.
2 - Route pipingto outside of structure. Continue with installationfollowing instructionsgiven in exhaust and intake pipingterminationsection.
WARNING
Exhaust Piping
1- Cemente_(haustpipthgintofluecollarsocketloceted
on the left side of the top cap.
2 - All horizontal runs of exhaust pipe must slope back toward the unit. A minimum of 1/4 inch(6 ram) drop for each 12 inches(305 mm) ofhorizontal runis man- datory fordrainage. Horizontal runs ofexhaust pip* ing must be supported every 5 feet (1.52 m) using hangers.
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