Table of Contents
Advertisement
4
Venting
(continued)
D. Stainless Steel Venting
!
WARNING
Asphyxiation Hazard.
•
Follow these instructions and the installation
instructions included by the original stainless
steel venting component manufacturers, Heat
Fab, M&G/DuraVent or Z-Flex, 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
Heat Fab, M&G/DuraVent or Z-Flex instructions
and these instructions, the more restrictive
instructions shall govern.
Do not mix vent components from 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" in 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. For use on models APX425C and APX525C,
Thermal Solutions offers size 4 in. vent pipe
and fittings shown in Table 4-30. It is the
responsibility of the installing contractor to
procure stainless steel vent system pipe
and related components.
Table 4-31: M&G DuraVent FasNSeal Stainless Steel Vent System Components, Single Wall
Boiler Model
APX425C (reduced dia. vent)
APX525C (reduced dia. vent)
APX425C (standard dia. vent)
APX525C (standard dia. vent)
APX625C (reduced dia. vent)
APX725C (reduced dia. vent)
APX825C (reduced dia. vent)
APX625C (standard dia. vent)
APX725C (standard dia. vent)
APX825C (reduced dia. vent)
Note: When using room air for combustion, use tee for sidewall vent termination. Termination tee part numbers: FSTT3 (3 in.),
FSTT4 (4 in.) FSTT6 (6 in.)
See M&G DuraVent FasNSeal literature for other required component part numbers such as straight pipe, elbows, firestops, and vent supports.
32
Nominal Pipe
Boiler Adapter
Diameter
3 in. (80 mm)
FS0403TR
APX425C & APX525C:
No Adapter Required;
4 in. (100 mm)
APX625C, APX725C,
APX825C: FS0604TR
6 in. (150 mm)
No Adapter Required
APEX
Installation, Operating, & Service Instructions
b. Alternate listed stainless steel vent system
manufacturers and components are shown
in Tables 4-31 and 4-32.
c. Where the use of "silicone" is called for
in the following instructions, use GE RTV
106 or equivalent for the vent collar. Seal
galvanized combustion air piping sections
with any general-purpose silicone sealant
such as GE RTV102. Seal PVC combustion
air piping sections with PVC cement.
d. Do not drill holes in vent pipe.
2. Field Installation of Stainless Steel Vent
Adapter (see Figure 4-33)
a. No adapter is required for stainless steel
vent pipe unless vent diameter is reduced
per Table 4-2. See Table 4-30, 4-31, or 4-32
for adapters for reduced vent diameter.
Table 4-30: Thermal Solutions (Heat Fab)
Vent System Components
(Stainless Steel, 4 in. only)
Component
Boiler Adapter
Straight Pipe, 1 ft. (0.3 m)
Straight Pipe, 3 ft. (0.9 m)
Straight Pipe, 5 ft. (1.5 m)
Straight Pipe, Adjustable
1.06-1.64 ft. (0.3 m to 0.5 m)
90° Elbow
45° Elbow
Horizontal Drain Tee
Vertical Drain Tee
Single Wall Thimble
* Note: when using room air for combustion, use tee for
sidewall vent termination.
Tee part number: 8116313 (4 in.).
Sidewall * or Roof Termination:
Straight Termination w/Screen
FSBS3
FSBS4
FSBS6 (23° angle)
Part Number, 4 in.
(100 mm)
no adapter required
100176-01
100177-01
100178-01
100179-01
100180-01
100181-01
100182-01
100183-01
100184-01
Wall Thimble
FSWT3
FSWT4
FSWT6
106308-05 - 3/23
Advertisement
Table of Contents
