17
3.23 - Venting systems
This
heater can be fitted with either a
concentric or split type venting system.
The approved types of flue gas discharge
configurations for this heater are shown in figure
9
Particular attention must be taken when
installing the vent pipes that go through the wall
to the outside. It must always be possible to
carry out routine maintenance operations of the
flue. The vent pipe must be installed in such a
way that it can be removed, if needed, in the
future. Hence, a suitable sheath should be
prepared in which to insert the vent pipe. Both
venting systems are suitable for venting through
a wall 1” (25 mm)
to 24” (609 mm) thick.
You must place the terminal in an open area,
and follow the following guidelines:
Make certain that exhaust gas does not re-
circulate back into the intake pipe.
To prevent anyone from walking into the
exaust vent, maintain a 7 ft (2.13 m)
clearance from ground level in walkways,
patio areas, alleys, or otherwise public
areas.
Maintain a minimum 3 ft (0.9 m) clearance
from any window or doorway;
Never install a heat saver or similar product
to capture waste heat from exhaust;
Follow local gas codes in your region or refer
to National Fuel Gas Code, or Can B149.1
INSTALLATION CODES.
Maintain at least 4ft (1.2 m) clearance to
electric, gas meters and exhaust fans.
Always place screens in openings (in intake
and exhaust) to prevent foreign matter from
entering the heater.
The vent terminals, (concentric, split type
exhaust), must be a minimum of 12” (0.3
m) above ground level.
If split type vent will be venting into a
chimney, make certain that no other
appliances are vented into it. This power-
vented heater must not share a chimney.
Vent exhaust terminal should be inserted
into, but not beyond, inner wall of chimney.
Do not vent into transient pipe.
Warranty
will be void.
Do not place vent terminal where flue
products can cause corrosion.
Due to the high efficiency of the heater,
condensation may form in the discharge
piping as a result of the cooling of the flue
gases. It is therefore necessary to take every
precaution to prevent this condensation from
going inside the heater, by collecting it and
conveying it outside the building. Follow the
instructions for conveying the condensation
provided in chapter 3.23.10.
Figure 9 - Approved types of flue gas discharge systems
3 - INSTALLATION
