Vent And Air Intake Restrictions - Slant/Fin Jaguar J-390 Installation And Operating Instructions Manual

Jaguar Model J-390
The vent connector on the boiler is designed to directly accom-
modate either PVC/CPVC Schedule 40 pipe or the listed stain-
less steel vent systems by utilizing an adapter. The adapter has
a built-in sealing ring, so no additional sealant is required.
Make sure the pipes are round and burr-free, and push down
fully past the sealing ring, until snug. (See Figure 4). Liquid
soap may be used to ease insertion.
The air intake collar on the boiler is designed to directly acco-
modate PVC/CPVC schedule 40 pipe (See figure 4). A small
bead of silicon should be applied between the collar and inside
of the air antake pipe, to seal properly.
4" PVC OR CPVC
AIR INTAKE PIPE
AIR INTAKE COLLAR
Figure 4. Vent & Air Intake Pipe installation into Boiler Adapter.
PVC/CPVC PIPE GENERAL ASSEMBLY METHOD
The following are the recommended methods for cutting,
cleaning and connecting PVC and CPVC pipe, for both the
vent and air intake piping system:
1. When laying out the piping system, work from the boiler
vent and air intake adapter to the point of outside
termination.
2. Cut the PVC/CPVC pipe to the required lengths, and
pre-assemble the entire system, before sealing.
Disassembly after sealing, to make any corrections, will not
be possible.
3. Once the pre-assembled PVC/CPVC pipe vent and air
intake system is verified to be of the proper length pipe and
fitting orientation, begin disassembling and preparing the
pipes and fittings for the sealing process. This can be done
section by section, or the complete vent and air intake
system can be disassembled. It is recommended to mark
the various parts, before complete disassembly, to
eliminate the possibility of errors during re-assembly.
4. De-burr the inside and outside of every PVC/CPVC pipe, to
ensure that they engage fully into the fittings, and flow is
not compromised. A small chamfer on the outside of each
pipe can particularly aid in the final assembly process.
5. Wipe or knock out any debris from inside the PVC or
CPVC pipe, which may have accumulated there from the
cutting process or storage. Debris can cause operational
problems with the boiler combustion components.
6. Thoroughly clean the outside ends of each pipe, and the
inside of each fitting. The surfaces must be dry for the
sealing agents to work properly. Handle the prepared pipe
lengths away from the cleaned ends, and handle the
cleaned fittings, from the outside, to avoid contamination.
7. Re-assembly of the PVC or CPVC pipe should be done in
sections, to avoid the primer and cement drying before the
parts are engaged.
8. For each joint, first apply a coat of primer to the outside
9. Before the primer dries, apply a coat of cement over it. A
10. Before the cement dries, insert the pipe into the fitting. A
11. Quickly wipe the excess cement from the outside areas of
4" PVC OR CPVC
VENT PIPE

VENT AND AIR INTAKE RESTRICTIONS

1. Maximum allowed equivalent vent and air intake length for
2. Equivalent of vent or air intake length is sum of the
Figure 5.
3. The vent termination is in addition to the allowed
4. Minimum vent length is 2 feet of straight pipe, plus one
5. Vent length restriction is for both direct and non-direct
EXAMPLE: The combustion air is provided by air intake
piping directly to the boiler (direct-vent installation). The vent
piping will be PVC and installation location will require the
use of 4 elbows for the vent to run the termination. The air
intake piping will also be PVC, and also will require the use
of 4 elbows.
sealing surface of the pipe and the inside sealing surface of
each fitting. Use only the primer type that is specified for
either the PVC or CPVC pipe that is bing utilized.
second coat of cement can be applied, if necessary, but
must be done quickly and in a manner that avoids
unnecessary build-up that would cause obstruction inside
the system. Use only the cement type that is specified for
either the PVC or CPVC pipe that is being utilized.
slight twisting motion while pushing the pipe into the fitting
will aid in distributing the cement evenly and ensuring the
parts fully engage.
the joint. Discard any rags used to avoid later getting the
cement on hands, clothes and equipment.
all of the approved vent and air intake materials is 100
equivalent feet.
straight pipe lengths and equivalent length of elbows.
Each 90˚ elbow is equivalent to 10 ft. of 4" pipe.
equivalent lengths.
90˚ elbow.
vent installations.
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