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TWIN PIPE VENTING GUIDE
Adaptator Installation
N O T I C E
For installation in Canada, field-supplied PVC/CPVC used for
combustion venting must comply with CAN/CGA B149.1 (lat-
est edition) and be certified to Type BH Gas Venting Systems,
ULC-S636.
Components of any certified system CANNOT be substituted
with any other vent system(s) or unlisted pipes and/or fittings.
All listed components, primers, and glues are part of the certified
vent system and therefore MUST be from a single manufacturer.
When installing the Ubbink adaptor with the twin pipe PVC/
CPVC system:
• Install the system in according to Ubbink/Rolux and the Instal-
lation Instructions.
• Use the 3''/5'' (7.6/10.2 cm) Concentric to Twin pipe Adaptor
Courroie
with three (3) inch (7.6 cm) or four (4) inch (10.2 cm) diameter
PVC/CPVC venting only.
• It is the responsibility of the installer to follow all national codes,
standards, and local ordinances. In addition to instructions laid
Agrandisseur
out in this manual for vent/intake clearances and other safety
excentrique
requirements.
• If venting conflicts arise between this guide and the respective
OEM's manual, the manufacturer installation instruction will
take precedence providing they meet the intent of all national
codes, standards, and local ordinances having jurisdiction. Fol-
low this guide together with applicable codes, standards, and/or
ordinances for installation of the intake/vent pipe(s) and all other
CAUTION
applicable water heater installation procedures.
WARNING
Current codes prohibit the application of external insulation
DANGER
on plastic vent pipe together with the use of cellular core PVC,
CPVC, and Radel as venting materials.
FR
AVERTISSEMENT
PVC/CPVC Twin Pipe Adaptor Installation Instructions:
The vent size (diameter) and maximum vent lengths must be fol-
Placer la
lowed as detailed in the installation Instructions supplied with the
courroie ou
ATTENTION
la bague ici
appliance and as stated in Tables 11-14 of this document. Thor-
oughly read and understand the venting section of the appliance
manual before proceeding with the following steps.
STEP 1:
Carefully read and understand the venting section of the In-
stallation Instructions supplied with the water heater prior to
determining a suitable location for the water heater and vent
termination. Locate water heater to have the straightest (short-
est) practical vent length to outside. Measure the total venting
distance required to reach the outside wall or roof. Determine
the diameter of venting components to be used based on re-
quired vent length (refer to vent tables or Tables 11-14 of this
document).
Agrandisseur
excentrique (conduit
d'échappement)
Conduite d'entrée
d'air de combustion
19
STEP 2:
Before installing the concentric to twin pipe adaptor, inspect
each vent component for damage while making sure the gaskets
for each component are undamaged. Do not attempt to install or
repair damaged components. If a gasket is damaged, these are
available through and its distributors. Do not use gaskets from
another manufacturer.
STEP 3:
Adaptor vent pipe MUST be securely fastened to structure, at
the eccentric increaser or as close as possible thereafter (see
Figure 13). Straps to be field supplied. Use straps, clamps, or
other fasteners that will not score or damage pipes and be ac-
ceptable by local codes.
Figure 13: Wall support for Eccentric Increaser
Securing Strap
Eccentric
Increaser
STEP 4:
Use PVC to Polypropylene Eccentric Increaser (supplied with
the adaptor) to transition from PP to PVC three (3) inches (7.6
cm); additional PVC/CPVC bushing or other type of reducing
fittings is required to transition to four (4) inch (10.2 cm) pipe.
Figure 14: 3/5 Concentric to Twin Pipe Adaptor
STEP 5:
Apply lubricant to the gasket surface and coupling with finger
prior to component attachment (see Figure 15). To make the
insertion of the gasketed fittings into the PVC coupling easier,
Centrocerin gasket lubricant is recommended (supplied with
adaptor in box).
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