Install Instructions

LAARS Heating Systems
Page 10
air to the boiler, a suitable switch or equivalent must
be wired into the boiler control circuit to prevent the
boiler from ring unless the blower is operating.
The boiler must be completely isolated and
protected from any source of corrosive chemical
fumes such as those emitted by trichloroethylene,
perchloroethylene, chlorine, etc.
3B. Venting
Vent Categories: The Mini-Therm JVS is a natural
draft appliance for Category I venting only. The
Mini-Therm JVH is a fan-assisted product that can be
vented vertically in a properly-designed Category I
system, or can be vented horizontally as a Category III
appliance, per this installation manual.
When venting as a Catagory I, the boiler vent collar
must be fastened directly to an unobstructed vent
pipe with rustproof sheet metal screws no longer than
1/2” (13mm) and located to prevent interference with
the inducer damper. Do not weld the vent pipe to the
boiler collar. The weight of the stack must not rest on
the boiler. The boiler top must be easily removable for
normal boiler service and inspection.
When venting as a Category III horizontal, the
venting requires a stainless steel system that is in
compliance with the requirements of UL 1738 in
the United States or ULC–S636 in Canada and in
accordance with this section and with the venting
system manufacturer’s instructions. Plastic venting of
any kind is not permitted. The venting system must be
attached to the boiler vent collar, using the appropriate
Boiler Adapter. DO NOT ATTACH WITH SCREWS.
IMPORTANT
Only JVH (induced draft) models may be side-wall
vented without the addition of a properly sized and
installed power venter.
JVS must be connected only using Category Type
I methods. JVH may be connected per Category I
or III methods and materials. See fuel gas code for
more information regarding your venting application.
IMPORTANT
Seulement JVH (tirage induit) modèles peuvent
être ventilés de la paroi latérale sans l'ajout d'une
taille appropriée et puissance installée venter.
JVS doit être connecté à l'aide de méthodes de
Type I de la catégorie. JVH peut être connecté
par catégorie I ou III Méthodes et matériaux. Voir
code de gaz combustible pour plus d'informations
concernant votre demande de ventilation
Avoid terminating boiler vents near air conditioning
WALL OR
PARAPET
CHIMNEY
CHIMNEY
RIDGE
WALL OR
PARAPET
CHIMNEY
CHIMNEY
RIDGE
10 (3.0) OR
LESS
Figure 5. Vertical Vent Termination.
2 (0.6) MIN.
3 (0.9)
MIN.
10 (3.0)
OR LESS
2 (0.6)
MIN.
3 (0.9)
MIN.
3 (0.9)
MIN.
3 (0.9)
MIN.
2 (0.6)
MIN.
10 (3.0)
MORE THAN 10
(3.0)
MORE THAN 10
(3.0)
NOTE: NO HEIGHT
ABOVE PARAPET
REQUIRED WHEN
FROM WALLS OR
PARAPET IS MORE
THAN 10 FT. (3.0m)
TERMINATION
10 FT. (3.0m)
OR LESS FROM RIDGE,
WALL OR PARAPET
Dimensions in feet (m).
WARNING
This boiler must be vented in accordance with
Part 7, Venting of Equipment, of the latest edition
of the National Fuel Gas code, NFPA 54/ANSI
Z223.1 and all applicable local building codes. In
Canada, follow CAN/CGA B149 Installation codes.
Improper venting of this appliance can result in
excessive levels of carbon monoxide which can
result in severe personal injury or death!
AVERTISSEMENT
Cette chaudière doit être ventilé, conformément
aux dispositions de la partie 7, de la ventilation de
l'équipement, de la dernière édition du National
gaz carburant code, NFPA 54/ANSI Z223.1 et tous
les codes du bâtiment locaux. Au Canada, CAN/
CGA B149 codes d'installation. Une mauvaise
ventilation de cet appareil peut entraîner des
niveaux excessifs de monoxyde de carbone qui
peut entraîner de graves blessures ou la mort!