WHL-053 Rev. 00 Rel. 003 Date 7.21.17
30
Contractors must check state and local codes before installing
through an existing vent opening. State and local codes always take
precedence over manufacturer’s instructions. Failure to check state
and local codes before installing through an existing opening could
result in property damage and add significantly to installation costs.
If an existing venting system is converted for use with this boiler, the
installer must ensure that the existing venting system is clean and
free from particulate contamination that could damage the boiler.
Failure to do so could result in property damage and boiler failure.
Such failure IS NOT covered under warranty.
Concentric Venting Through an Existing System
NOTE: The following instructions refer only to venting through
an existing vent system, and not to venting with Westinghouse’s
optional concentric vent kits. Refer to Concentric Vent Kit installation
manual (LP-166) for further information on venting with the optional
concentric vent kits.
Concentric venting through an existing system must run vertically
through the roof. See Table 19 for proper minimum vent sizing. Use
only the approved venting materials specified in Table 14 for piping
the system. All instructions listed in this Venting section apply. See
Figures 17-1 and 17-2 for venting demonstrations.
The upper and lower vent terminations as well as all joints in
the venting system must be properly sealed to ensure that all
combustion air is drawn properly and exhaust does not leak from
the system. Failure to properly seal the venting system will result in
property damage, serious personal injury, or death.
Chase Venting Through an Existing System
When venting as a chase, follow all instructions included in this
Venting section, including those in the previous Concentric Venting
Through an Existing System section. See Figure 17-3 for chase venting
demonstration.
3. Power Venting, Indoor Combustion Air in Confined or
Unconfined Space
This boiler requires fresh, uncontaminated air for safe operation and
must be installed in a mechanical room where there is adequate
combustion and ventilating air.
NOTE: To prevent combustion air
contamination, see Table 3.
Combustion air from the indoor space can be used if the space has
adequate area or when air is provided through a duct or louver to
supply sufficient combustion air based on the boiler input.
Never
obstruct the supply of combustion air to the boiler.
If the boiler
is installed in areas where indoor air is contaminated (see Figure 18)
it is imperative that the boiler be installed as direct vent so that all
combustion air is taken directly from the outdoors into the boiler
intake connection.
Unconfined space
is space with volume greater than 50 cubic feet
per 1,000 Btu/hour (4.8 cubic meters per kW) of the total input
rating of all fuel-burning appliances installed in that space. Rooms
connected directly to this space, through openings not furnished
with doors, are considered part of the space.
Confined space
is space with volume less than 50 cubic feet per
1,000 Btu/hour (4.8 cubic meters per kW) of the total input rating of
all fuel-burning appliances installed in that space. Rooms connected
directly to this space, through openings not furnished with doors,
are considered part of the space.
When drawing combustion air from inside a conventionally
constructed building to a confined space, such space should be
provided with two permanent openings: one located 6” (15 cm)
below the space ceiling, the other 6” (15cm) above the space floor.
Each opening should have a free area of one square inch per 1,000
Btu/hr (22cm2/kW) of the total input of all appliances in the space,
but not less than 100 square inches (645cm2).
If the confined space is within a building of tight construction, air for
combustion must be obtained from the outdoors as outlined in the
Venting section of this manual. See Figure 19.
Figure 17 - 1, 2 - Concentric Venting Through an Existing System, 3, Chase Venting Through an Existing System
NOTE:
These drawings are meant to demonstrate system venting only. The installer is responsible for all equipment and detailing required
by local codes.
Содержание 220VWH
Страница 36: ...WHL 053 Rev 00 Rel 003 Date 7 21 17 36 Figure 25 Internal Connection Diagram...
Страница 57: ...WHL 053 Rev 00 Rel 003 Date 7 21 17 57 Figure 29 Condensate Detail...
Страница 58: ...WHL 053 Rev 00 Rel 003 Date 7 21 17 58 Figure 30 Combustion System Replacement Parts 220kBTU Model...
Страница 59: ...WHL 053 Rev 00 Rel 003 Date 7 21 17 59 Figure 31 Combustion System Replacement Parts 299 399kBTU Models...
Страница 60: ...WHL 053 Rev 00 Rel 003 Date 7 21 17 60 Figure 32 Replacement Parts All Models...
Страница 66: ...WHL 053 Rev 00 Rel 003 Date 7 21 17 66 Maintenance Notes...
