Rinnai E110CN Installation & Servicing Instructions Manual page 30

6.7.4
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NOTICE
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CAUTION
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CAUTION
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NOTICE
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NOTICE
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NOTICE
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NOTICE
Item Description
Plastic Vent and/or air
pipes and fittings
Plastic Pipe cement and
primer
Item Description
Stainless steel vent
systems
Plastic Vent and/or air
pipes and fittings
Approval codes for installation of venting system
12" (300 mm)
minimum
12" (300 mm)
minimum
Terminal positions PVC
30
Recommended vent/air intake terminal position
Terminals should be positioned as to avoid products of combustion entering
openings into buildings or other vents.
Maintain 12" of clearance above the highest anticipated snow level or grade
or, whichever is greater. Please refer to your local codes for the snow level in
your area.
The termination shall be at least 4 feet (1,220 mm) for the US and 6 feet (1,830
mm) for Canada distance from electric meters, gas meters, regulators and
relief equipment. (for room air application only)
Horizontal vent systems should always be installed sloping towards the
boiler (min. 21 mm/m, 1/4 "/ feet), in order to avoid condensate retaining in
the vent system. With the condensate running back to the boiler the risk of
ice forming at the terminal is reduced.
The whole route of the vent system must be installed upwards, never
downwards, completely nor partly.
Place pipe supports every 4 feet (1219 mm) of horizontal run, beginning with
the support near the boiler to prevent movement in fittings and allow boiler
to be free from any strain or weight on boiler or fittings.
The terminal should be located where dispersal of combustion products is
not impeded and with due regard for the damage or discolouration that might
occur to building products in the vicinity (see fig 14 and 15).
Flue Material
PVC Schedule 40
PVC - DWV
CPVC Schedule 40 ANSI/ASTM F441
PVC
CPVC
Flue Material
AL29-4C
PPS
12" (300 mm)
minimum
EXHAUST
12" (300 mm)
INTAKE
minimum
12" (300 mm)
minimum
Approval Codes for Installation
United States
ANSI/ASTM D1785
ANSI/ASTM D2665
ANSI/ASTM D2564
ANSI/ASTM F493
Manufacturer US/CAN
Heat Fab UL1738
Ubbink
Fittings or Piping Equivalent
45 degree elbow
90 degree elbow
plastic pipe per foot
concentric vent kit
Equivalent friction loss of PVC/CPVC
figure 15
Flue system
concentric Saf-T Vent SC
twin pipe Saf-T Vent EZ Seal
Rolux Condensing
Vent System
feet
3
6
1
3
table 8
table 7
m
0.91
1.83
0.30
0.91