ACV Prestige CPVC, User Manual

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8
Vent/Combustion Air Equivalent Lengths
- For all venting applications, PVC/CPVC, AL29-4C®,
SS or Polypropylene, the maximum allowable length
should not exceed those lengths listed in Table 8.
- For PVC/CPVC or AL29-4C® vent systems reduce the
maximum allowable length for each elbow as follows:
- 3 Feet for every 45º elbow
- 5 feet for every 90º elbow
- For polypropylene vent systems reduce the maxi-
mum allowable length for each elbow as follows:
- 5 Feet for every 45º elbow
- 10 feet for every 90º elbow
2 Inch (60 mm) Vent Systems Restrictions for the
PRESTIGE 60, 110 & Excellence.
- Derate the maximum boiler input by 3% when using
the maximum equivalent length of 2 inch (60 mm)
vent piping on Solo 110 & Excellence 110.
- The 2 inch vent system requires a 1 inch clearance
to combustibles
- Use long sweep elbow to limit pressure drop and to
avoid excessive vent temperatures.
- In 2 inch PVC vent applications, the first 7 equivalent
feet of the vent system must utilize CPVC material.
To avoid vent failure the installer must use CPVC
vent material for the first 7 equivalent feet of a 2 inch
PVC vent system. The installer must also utilize
primer and glue that is certified for both PVC/CPVC
materials. Failure to properly install the vent system
can lead to carbon monoxide posoning or fire due to
joint separtion or pipe breakage.
WARNING
3 Inch Vent System Restrictions
- Derate the maximum boiler input of the PRESTIGE
Solo 250 by 3% when using the maximum equiva-
lent length of 3 inch (80 mm) vent piping.
Rigid Polypropylene Vent System Restrictions
Contact approved polypropylene vent manufacturer
for a copy of their installation instructions. Read,
understand and follow all of the vent manufacturer’s
instructions before beginning the installation.
Contact vent manufacturer if you require any techni-
cal support. Failure to properly install and support
vent system can lead to carbon monoxide poisoning
or fire due to joint separation or pipe breakage.
- Rigid polypropylene vent pipe must be installed with
locking band clamps or connector rings and sup-
ports (wall strap or clamp, elbow or base, etc.).
Consult vent manufacturer for complete list of other
parts required.
- Maintain 5/8" per foot slope back toward appliance
on all horizontal runs.
- The use of a wall plate is required to seal rigid
polypropylene vent pipe at the entrance of the chim-
ney or chase to prevent mortar or cement from con-
tacting the polypropylene vent pipe.
- Any termination piping external to the building must
be UV resistant (black).
- Do not apply insulation directly to vent. Maintain
vent manufacturers clearances to combustibles.
- Plastic venting systems shall not pass through rated
fire separations without approved fire stopping
installed in accordance with fire stopping manufac-
turers instructions.
- Prior to assembly of any joints, ensure joint gasket is
present and properly installed. Contact vent manufac-
turer if gasket is missing or damaged. Verify the
integrity of joints upon completion of the vent system.
WARNING
Pre-Installation Requirements
TABLE 8