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IV. Venting
A. General Venting Guidelines
In order to properly vent this boiler, the installer
must select and install a venting system that meets
all requirements specified in this section, as well as
following the instructions provided by the venting
system manufacturer:
1. Install vent system in accordance with National
Fuel Gas Code, ANSI Z223.1/NFPA 54 or Natural
Gas and Propane Installation Code, CAN/
CSA B149.1 Installation Code for Canada, or,
applicable provisions of local building codes.
2. If this boiler is being installed in Massachusetts,
follow the Massachusetts Code Instructions
printed near the end of this section in Step K.
3. Venting manufacturers not listed in this manual
may be acceptable. It is the responsibility of
the installer or vent supplier to use compatible
adapters and materials.
a. It is recommended to consult with venting
professionals and designers when determining
the vent system for this appliance.
b. This boiler is shipped with a AL29-4C
Fab Saf-T-Vent connection.
c. Alteration of the boiler vent connection is
prohibited.
4. Recommended flue system material is AL29-
4C
©
. Other materials may be used that meet
the following requirements:
a. Flue system material shall be capable of
continuous operation at 230°F or higher.
b. Flue system material shall have the same
corrosion resistance to flue gas condensation
as AL29-4C
©
.
c. Flue system and material shall be certified to
UL1738 - Venting Systems For Gas-Burning
Appliances Categories II, III, and IV.
5. Do not reduce the diameter of the vent pipe.
The vent pipe must not be smaller than the vent
connector on the boiler.
6. Enclose vent passing through occupied or
unoccupied spaces above the appliance with
material having a fire resistance rating at least
equal to the rating of adjoining floor or ceiling.
Thermal Solutions, 1175 Manheim Pike, Lancaster, PA 17601 Website: www.thermalsolutions.com
Phone: 717-239-7642 Fax: 877-501-5212 Email: sales@thermalsolutions.com
This appliance must not be installed in a room
under negative pressure. These direct vent gas fired
appliances are allowed a maximum leakage of 2%
from the venting/combustion chamber and 8% from
the air inlet portion when pressurized to operating
conditions in a neutral pressure room. An equipment
room under negative pressure could deplete the
combustion air supply to the appliance and cause
leakage of flue gas from the venting system.
Exhaust fans installed in equipment rooms can
create negative pressure conditions strong enough
to cause nuisance shutdowns of the appliance.
Failure to install the appliance in accordance with
this manual can cause property damage, personal
injury, or loss of life.
Common venting with other manufacturers'
appliances or different Thermal Solutions models
©
Heat-
is prohibited.
It is the Responsibility of the installing contractor or
venting designers to comply with national and local
codes and follow best industry practices for installing
vent support, drainage, and pitch.
Do not exceed maximum vent/combustion air
system length.
7. For flue gas venting, have horizontal runs
sloping upwards not less than ¼ inch per foot
(21 mm/m) from the boiler to the vent terminal.
8. This appliance operates under conditions that
permit condensation in the heat exchanger
and the flue gas venting. This appliance shall
be installed so as to prevent accumulation of
condensate, and where necessary, have means
provided for drainage of condensate.
Do not exceed maximum vent / combination air
system length.
WARNING
WARNING
NOTICE
NOTICE
NOTICE
NOTICE
15
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