Installation of the Exhaust and Air Intake System 10
23
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Installation, Operation and Maintenance Manual Sealed Combustion Gas Boiler Logano GA244 • Issue 02/2004
Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de
The vent system will be under positive pressure. Check
all seams for gas tightness. Allow 24 hours for silicone
to cure before operating the boiler.
Table 6 Equivalent length of vent pipe / air intake pipe
DANGER!
DANGER !
due to possible intake of exhaust gases.
z When any of the previous installation
procedures are completed be sure to
go over the entire system to make sure
all joints are secure and sealed
correctly.
z Check all seams and joints for gas
tightness.
z It is required to have the entire system
checked by a qualified inspector at
least annually following initial
installation.
NOTICE !
Table 6 shows the equivalent length for
each 45° and 90° elbow for each listed
vent pipe manufacturer of each GA244
model boiler.
Equivalent length of vent pipe / air intake pipe in ft.
model 37 model 44 model 53 model 62
Manufacturer Typ 45° 90° 45° 90° 45° 90° 45° 90°
heat fab SAF-T vent 4.5 9 4.5 9 5 10 3.5 7
O-flex-L Star 34 5 10 5 10 5 10 5 10
Pro TechFasNSeal5105105104 8
Z-Flex Z-Flex 4.5 9 4.5 9 5 10 4 8
NOTICE !
To increase overall vent length, use a
couple of 45° elbows on air intake piping
and run the intake piping at an angle.
NOTICE!
The follwing maximum equivalent length of
exhaust pipe (Table 7, page 24 and
Table 9, page 25) represents the maximum
equivalent length of exhaust vent pipe or air
intake pipe only, without condensate drain
tee, vent piping within the termination body
and length of the termination tee. Note that
we only need to be concerned about the
longest run; do not
combine intake and
exhaust piping.
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