36
Termination
Termination should be accomplished using the adapter
thimble as shown. The adapter thimble is supplied by
Raypak as part of the D-32 option.
PVC vent assembly instructions
1) Cut pipe ends squarely, removing all burrs and
dirt.
2) Dry fit pipe and fittings to be connected for proper
fit.
3) Clean pipe and fitting with a cleaner.
4) Apply a coat of primer to pipe and fitting.
5) Apply a thin coat of cement to fitting, avoiding pud-
dling inside.
6) Apply a liberal coat of cement to pipe leaving no
voids.
7) QUICKLY assemble parts while cement is fluid! If
you wait too long, re-coat pipes.
8) Push pipe completely into socket of fitting, rotating
1/4 turn to achieve proper orientation until it bot-
toms out.
9) Hold pipe and fitting together for 30 seconds, then
carefully clean off excess with a cloth. The glue
bonds by melting the PVC and they will re-harden
during curing.
10) Allow connections a sufficient time to cure before
disturbing (follow manufacturer instructions).
11) A special sidewall vent adapter/termination must
be used as supplied by Raypak per our listing.
12) Rooftop installations must use a category IV listed
vent cap.
Centrotherm Polypropylene Venting
Option (D-33)
Venting of the XTherm with Polypropylene vent mate-
rial requires the D-33 adapter kit available from
Raypak.
The Polypropylene vent adapter should appear as in
Fig. 31.
Cleaning
Prior to installing Polypropylene pipe and fittings,
ensure that all gaskets are free of grease, oil, debris
or damage.
Installation
Vent pipes are joined by push-fit connections, with
EPDM gaskets located in the sockets. Pipes and
components must be installed with the socket ends to
the outlet and male ends towards the appliance.
It is not recommended to install polypropylene when
the material temperature is below 32ºF.
Joining
Lubricate gaskets and male ends of pipes with CEN-
TROCERIN lubricant or water only. Push male ends
of pipes into gasketed openings with a light twisting
motion.
Cutting
Components should be selected to minimize cutting.
Where it is necessary, pipe sections may be cut to
length at male ends (non-socketed end) only. Any
cuts must be made at right angles to the pipe. Pipe
must then be beveled for insertion into the adjoining
socket to ease installation. All field cuts must be
deburred. Bends and other pre-formed components
must not be cut.
Termination
Termination should be accomplished using the adapter
as shown. The appliance and termination adapters are
interchangeable. The vent temperature limit provided
with the adapter must be installed per kit instructions.
Polypropylene Construction
• ULC-S636 Certified, making it approved for use in
Canada
• Zero Clearance to Combustibles
WARNING:
Vent pipes must be adequately and
securely supported; the vent weight must not be
supported by the heater; this may cause
unwarrantable damage.
CAUTION:
The inlet water temperature to the
XTherm must not exceed 190ºF at 100% fire to use
the Polypropylene venting option. The venting system
must conform to local codes and/or the current edition
of the National Fuel Gas Code ANSI Z223.1/NFPA 54.
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