This type of installation can cause non-warrantable
problems with components and poor operation of the
boiler due to the recirculation of flue products. Multi-
ple vent caps installed in the same horizontal plane
must have a 4 ft clearance from the side of one vent
cap to the side of the adjacent vent cap(s).
Combustion air supplied from outdoors must be free of
particulate and chemical contaminants. To avoid a
blocked flue condition, keep the vent cap clear of
snow, ice, leaves, debris, etc.
Condensate Management
The condensate must be drained properly to protect
the appliance and drainage system. The condensate
from the boiler is acidic. Its pH is between 3.2 and 4.5.
Raypak recommends neutralizing the condensate with
a Condensate Neutralizer kit (Z-12). The neutralizer kit
is connected to the drain system and contains lime-
stone (calcium carbonate) chips to neutralize the pH
level of the condensate. The kit may be added to avoid
long-term damage to the drainage system and to meet
local code requirements.
Vent pipe condensate drains are also required for
installation of the XFyre. Follow vent manufacturer
instructions for location of condensate drains in the
vent. The vent condensate should also be routed
through a neutralization kit, as required by local code
requirements.
The neutralizer kit must be sized to the condensate
generated by the appliance and the vent.
WARNING:
No substitutions of flue pipe or vent
cap material are allowed. Such substitutions would
jeopardize the safety and health of inhabitants.
CAUTION:
In general, the condensate piping from
the appliance must have a downward slope of ¼” per
horizontal foot. Condensate drain traps must be
primed with water to prevent gas flue leaks.
Neutralizers should be checked at least once per
year, and the chips should be replenished as neces-
sary. When replacing the chips, they should be no
smaller than ¾” to avoid blockage in the condensate
piping.
Fig. 27 is a visual guide only
. Follow the man-
ufacturer’s instructions for the installation of the
neutralization kit and condensate drains.
Fig. 27: Visual Guide for Condensate Piping
33
Summary of Contents for 300A
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