26
IV. Venting
B. CPVC/PVC Venting - C. Polypropylene Venting (continued)
Sealant or equivalent between vent
pipe and storm collar to provide
weather-tight seal.
• Install rodent screen and vent terminal
(supplied with boiler). See Figure 13 for
appropriate configuration.
• Brace exterior piping if required.
ii.
Combustion Air Piping
• If possible, locate combustion air
termination on the same roof location as
the vent termination to prevent nuisance
boiler shutdowns. Combustion air
terminal may be installed closer to roof
than vent. Alternatively, boiler may be
installed with vertical roof vent terminal
and sidewall combustion air terminal.
• Size roof opening to allow easy insertion
of combustion air piping and allow
proper installation of flashing and storm
collar to prevent moisture from entering
the structure.
- Use appropriately designed
vent flashing when passing through
roofs. Follow flashing manufacturers’
instructions for installation
procedures.
- Extend combustion air pipe to
maintain minimum vertical
and horizontal distance of 12 in.
(300 mm) from roof surface. Allow
additional vertical distance for
expected snow accumulation. Provide
brace as required.
- Install storm collar on combustion air
pipe immediately above
flashing. Apply Dow Corning Silastic
732 RTV Sealant or equivalent
between combustion air pipe and
storm collar to provide weather-tight
seal.
• Install rodent screen and combustion
air terminal (supplied with boiler). See
Figure 13 for appropriate configuration.
• Brace exterior piping if required.
C. Polypropylene Venting
WARNING
Asphyxiation Hazard. Follow these
instructions and the installation instructions
included by the original polypropylene
venting component manufacturers, M&G/
DuraVent or Centrotherm, whichever
applicable. Failure to do so could cause
products of combustion to enter the
building, resulting in severe property
damage, personal injury or death.
Where a conflict arises between M&G/
DuraVent or Centrotherm instructions and
these instructions, the more restrictive
instructions shall govern.
Do not mix vent components or joining
methods for listed manufacturers.
Examine all components for possible
shipping damage prior to installation.
All condensate that forms in the vent must
be able to drain back to the boiler.
NOTICE
Do not exceed maximum vent/combustion air
system length. Refer to “2. Vent/Combustion
Air Piping” under “A. General Guidelines” of
this section for maximum vent/combustion air
system length.
Use only vent and combustion air terminals
and terminal locations shown in “3. Vent/
Combustion Air Terminals” under “A.
General Guidelines” of this section.
1. Components
a. Listed polypropylene vent system manufacturers
are shown in Table 9. It is the responsibility of
the installing contractor to procure polypropylene
vent system pipe and related components.
i.
M&G/DuraVent PolyPro Single Wall Rigid
Vent and PolyPro Flex Flexible Vent comply
with the requirements of ULC-S636-08
‘Standard for Type BH Gas Venting
Systems’.
Table 9: Listed Polypropylene Vent System
Manufacturers
Make
Model
M&G/
DuraVent
PolyPro Single Wall Rigid Vent
PolyPro Flex Flexible Vent (APX425 and
APX525)
Centrotherm
Eco Systems
InnoFlue SW Rigid Vent
Flex Flexible Vent (APX425 and
APX525)
Содержание APEX
Страница 6: ...6 I Product Description Specifications and Dimensional Data continued Figure 1A Apex Model APX425 ...
Страница 7: ...7 Figure 1B Apex Model APX525 I Product Description Specifications and Dimensional Data continued ...
Страница 9: ...9 I Product Description Specifications and Dimensional Data continued Figure 1D Apex Model APX825 ...
Страница 57: ...57 VIII Electrical continued Figure 26 Ladder Diagram ...
Страница 58: ...58 VIII Electrical continued ...
Страница 59: ...59 Figure 27 Wiring Connections Diagram VIII Electrical continued ...
Страница 68: ...68 IX System Start up continued Apex Series Operating Instructions Figure 34 Operating Instructions ...
Страница 105: ...105 ...
Страница 109: ...109 XIII Repair Parts continued APX625 APX725 and APX825 APX825 shown ...
Страница 112: ...112 XIII Repair Parts continued APX425 and APX525 ...
Страница 114: ...114 XIII Repair Parts continued APX625 APX725 and APX825 ...
Страница 122: ...122 ...
Страница 123: ...123 ...