Instructions / Assembly

®
System 1738 Installation Methods 21
Accessory Installation Instructions
Access Tee
1. The access tee shall be
installed on a vertical run
of pipe to prevent the
collection of condensate.
2. PVC Access Tees shall
only be used on System
1738 PVC venting systems.
Do not mix pipe, fittings,
cements, or joining
methods from different
Vent manufacturers.
This can result in unsafe
conditions and will void
the certification and
warranty.
3. Solvent cement the access tee into the piping
system as per the Solvent Welding Guidelines
instructions specified in this guide. Allow for the
proper cure times referenced in this guide before
proceeding to next step.
4. Apply two full turns of Teflon
®
Tape to the threaded
portion of the 1/2" plug.
5. Hand thread and hand tighten the plug into the
bushing. Take care not to cross thread the fittings.
6. Once hand tight, slowly turn the plug an additional
one and a half (1.5) turns.
7. If the fittings appear to be damaged during
threading, the entire assembly should be replaced.
If the Teflon
®
Tape was unraveled during threading,
the plug will need to be re-installed with new tape.
8. Repeat steps 4-7 every time the plug is removed
ensuring to use new Teflon
®
Tape each time.
Refer to the appliance manufacturer’s installation
instructions to ensure that the low profile side wall
termination kit is permitted for use. The IPEX Low Profile
side wall termination kit is fully certified for use with IPEX
System 1738 product only.
System 1738 PVC Low
Profile vent kits are made
from a UL1738 certified PVC
compound and are rated
to a maximum temperature
of 149
o
F.
The vent termination must
maintain all termination
clearances and be installed in accordance with local
building code and NFPA 54 / ANSI Z223.1 National Fuel
Gas Code. (see Figure 13)
Item #
Flush Mount Vent Kit
Size (inches)
Pipe O.D.
Hole Spacing
(ctr to ctr)
397984 2 2.375" 5.6"
397985 3 3.5" 5.6"
397986 4 4.5" 5.6"
TABLE 4 – Low Profile Termination Kits Dimensions
TABLE 3 – Each Kit Contains:
Qty Item Description
1 Base (two holes)
1 Cap (one hole)
8 Stainless Steel Screws
4 Plastic Anchors
Low Profile Side Wall Termination Kit
Installation Procedure
1. When locating the penetration of the vent and air
pipe, ensure the termination is properly oriented
as shown in Figure 14 and ensure that it maintains
minimum clearance requirements as shown in Figure 13.
For multiple vent terminations, ensure that a minimum
clearance of 12 inches is maintained between edge
of air inlet and adjacent vent outlet and that all vent
pipes and air inlets terminate at the same height to
avoid the recirculation of flue gases and the possibility
of causing severe personal injury, death, or substantial
property damage. (see Figure 16)
2. When installing the vent termination in a vertical
configuration, ensure the vent piping is located above
the air inlet piping. This will avoid the risk of flue gas
products recirculating into the air inlet and building.
(see Figure 14).
Refer to Figure 15 for side wall termination assembly