GOLD G V
W a t e r b o ile r — S e rie s 3
Ve n t in g S u p p le m e n t
S t a R-3 4
S p e c ia l g a s ve n t s ys t e m ve n t a n d c o m b u s t io n
a ir s u p p le m e n t
Flex-L International, Inc. StaR-34 AL29-4C®
Stainless Steel Special Gas Vent System may be
used in new installations of GV-3 through GV-6
boilers.
Hazard definitions
The following terms are used throughout this Venting Supplement to bring attention to the
presence of hazards of various risk levels or to important information concerning the life of
the product.
Indicates presence of hazards that will cause severe personal injury, death
or substantial property damage.
Indicates presence of hazards that can cause severe personal injury, death
or substantial property damage.
Indicates presence of hazards that will or can cause minor personal injury
or property damage.
Indicates special instructions on installation, operation or maintenance
that are important but not related to personal injury or property damage.
To the installer:
ThisVenting Supplement must only be used by a qualified installer/service
technician. Read these instructions completely before beginning the
installation. Failure to follow these instructions in proper order can cause
severe personal injury, death or substantial property damage.
To install a new vent system follow instructions in:
•
•
This Venting Supplement.
GV Boilers Vent/ Air Intake Termination Assembly Instructions, if
using Weil-McLain Vent/Air Intake Termination Kit. — OR —
•
GV Water Boiler Series 2 & 3 Direct vent Through-roof or Through-
unused-chim ney Venting Supplem ent, if using Weil-McLain
Through-Roof or Through-Unused-Chimney Termination Kit.
•
StaR-34 manufacturer’s instructions supplied with vent material.
For installations above 5,500 feet use only direct vent (ducted combustion
air) when sidewall venting. All of the vertical (through-roof or through-
unused-chimney) methods in thisVenting Supplement are acceptable. Can
result in severe personal injury, death or substantial property damage if
ignored.
Part Number 550-110-268/0699
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S t a R-3 4 Ve n t in g S u p p le m e n t
Vent termination
anticipated snow line. In addition, vent termination must be
at least 7 feet above public walkway and 3 feet above any forced
air intake within 10 feet. Stay well away from trees, shrubs,
and decorative items. Site conditions may dictate greater
clearances. See Figure 1.
Venting method definitions
Direct vent — Uses outside combustion air with combustion
air connector piping sealed at all joints and seams.Also known as
“sealed combustion”.
Non-Direct vent — Uses inside combustion air with no
9. Vent must terminate at least 4 feet horizontally, and in no
case above or below, unless a 4 foot horizontal distance is
maintained, from electric meters, gas meters,regulators, relief
valves, and other equipment.
10. Locate or guard vent to prevent condensate from damaging
exterior finishes.
11. Do not extend exposed vent pipe outside of building.
Condensate could freeze and block vent pipe.
12. Vent must terminate at least 6 feet away from adjacent walls.
13. Do not terminate vent closer than 5 feet below roof overhang.
combustion air connector piping.
Properly locate vent termination
Follow instructions on this page when
determining vent location to avoid possibility
of severe personal injury,death or substantial
property damage.
1. When using direct vent method — Refer to separate
instructions packed with Weil-McLain direct vent termination
kit and vent pipe manufacturer's instructions for additional
locations.
2. For location of non-direct vent vertical termination, see vent
pipe manufacturer's instructions.
3. Gases will form white plume in winter.Plume could obstruct
window view.
4. Prevailing winds could cause freezing of condensate and
water/ice buildup on building, plants or roof.
5. Locate or guard vent to prevent accidental contact by people
or pets.
6. Do not terminate vent in window well, stairwell, alcove,
courtyard, or other recessed areas.
7. Non-Direct vent installations only — Vent must terminate
more than 1 foot below or to side of all doors or windows.
See Figure 1.
14. Do not terminate vent above any door or window.Condensate
can freeze, causing ice formations.
15. Do not use existing chimney as raceway if another appliance
or fireplace is vented into or through chimney.
16. Do not connect:
•
•
Any other appliance to vent pipe.
Multiple boilers to a common vent pipe.
17. Do not wrap or insulate vent pipe and fittings.
18. Canadian installations — See CAN/CGA B149.1 or B149.2
Installation Code.
19.
A gas vent extending through an exterior
wall shall not terminate adjacent to the wall
or below building extensions such as eaves,
parapets, balconies or decks. Failure to
comply could result in severe personal
injury, death or substantial property
damage.
8. Vent must terminate more than 1 foot above grade or
Figure 1 Vent termination locations
Forced
air intake
3 feet
If within 10 feet
1 foot
7 feet
1 ft
26808
Snow
26807
Part Number 550-110-268/0699
3
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G O LD G V W a t e r b o ile r — S e r ie s 3
Installation
Pre-installation planning
1. Follow national, state, local or provincial codes or
regulations when venting GV boiler.
2. Choose vent method from those shown on page 5.
3. Select vent run components from Table 2. Table 3
states maximum vent run lengths and number of
elbows.Do not exceed data in Table 3. Longer vent
runs will slightly reduce boiler output. See Figure 2.
4. If installing with direct vent method, use same
maximum run length and number of elbows from
step 2. Vent and combustion air connector piping
configurations must match.Use suitable 3" material
for combustion air connector piping, such as:
•
•
•
Dryer vent
Galvanized steel
PVC (3" I.D.)
5. Refer to vent termination WARNING, item 19 on
page 3.
Description
Flex-L International, Inc.
Part Number (Note 1)
Table 2
Parts list
GV starter tee
--
GV termination coupling
45o elbow
SRAWGVT
SRE4503
90o elbow
SRE9003
6" pipe
SR06P03
1' pipe
SR12P03
2' pipe
SR24P03
3' pipe
SR36P03
5' pipe
SR60P03
Joiner band
SRJB-14
Weil-McLain Vent/Air Intake Termination Kit
382-200-430 (Note 2)
Weil-McLain Through-Roof or Through-Unused-Chimney Termination Kit 382-200-435 (Note 2)
Notes
1. Flex-L International, Inc. part number. Parts available through Flex-L International, Inc.
2. Weil-McLain part number. Parts available through Weil-McLain distributor.
Table 3
Figure 2 Boiler output
100
Vent and combustion air connector piping
lengths and number of elbows
GV-3
GV-4
GV-5
99
98
97
96
95
Maximum vent
length (feet)
Total number of elbows
0
2
3
4
5
6
7
8
GV-3 through GV-5 100 80 70 60 50 40 30 20
GV-6 80 60 50 40 30 20 10 --
GV-6
0
20
40
60
80
100
Total equivalent length (feet) of vent
(from boiler to vent termination)
4
Part Number 550-110-268/0699
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S t a R-3 4 Ve n t in g S u p p le m e n t
For altitudes more than 5,500 feet above sea level — Do not use non-direct vent through
sidewall methods as shown in Figures 4 and 6 below. Can cause severe personal injury, death
or substantial property damage if ignored.
Select
vent
method
Figure 3 GV direct vent through sidewall
Figure 4 GV non-direct vent through sidewall
(using Weil-McLain Vent/Air Intake
(using Weil-McLain Vent/Air Intake
Termination Kit)
Termination Kit) (See WARNING above.)
Slope vent pipe downward, toward
boiler, minimum ¼” per foot.
Vent pipe
Vent pipe
ope
Sl
Sl
Slope vent
pipe
ope
Air pipe
downward,
toward boiler,
minimum ¼”
per foot.
StaR-34
StaR-34
26801
26802
vent starter tee
vent starter tee
Figure 5 GV direct vent (using Weil-McLain
Through-Roof or Through-Unused-
Chimney Termination Kit)
Figure 6 GV non-direct vent through sidewall
(using termination coupling)
(See WARNING above.)
Slope vent pipe
downward, toward
boiler, minimum
¼” per foot.
StaR-34
vent starter tee
26804
Slope vent pipe
downward, toward
boiler, minimum
¼” per foot.
Figure 7 GV non-direct vent through roof
Slope vent pipe
downward,
toward boiler,
minimum ¼”
per foot.
StaR-34
vent starter tee
StaR-34
vent starter tee
26805
26803
Part Number 550-110-268/0699
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G O LD G V W a t e r b o ile r — S e r ie s 3
Installation — assembly
Connect vent starter
tee to boiler
Follow the instructions in the GV Series 3 Boiler Manual section IIb to connect the vent
starter tee to the boiler.
Follow vent pipe manufacturer's instructions for sealing the vent.Vent and
combustion air connector piping must be sealed gas-tight to prevent
possibility of flue gas spillage and carbon monoxide emissions, resulting in
severe personal injury or death.
Construct vent and
optional
combustion air run
1. Follow StaR-34 manufacturer's instructions to construct vent run and for methods of
supporting vent runs.
•
•
•
•
Clean joints before sealing. See vent pipe manufacturer's instructions to clean joints.
Use their specified sealant (maximum 250 0F flue temperature). Do not use screws.
Do not mix types or manufacturers of vent materials.
Maintain minimum one-inch clearance from combustible materials to vent pipe; 0"
clearance for noncombustible materials.
•
•
Install vent pipe with seams on top of vent runs.
If needed, male end of vent pipe may be cut to provide correct length. See vent pipe
manufacturer's instructions for use.
2. If installing with direct vent method, use instructions provided with Weil-McLain
termination kit. See Figures 3, 4 or 5 on page 5.
Ve n t in g t h ro u g h s id e w a ll
Connect vent run to
termination
1. If using Weil-McLain Vent/Air Intake Termination Kit, see instructions provided in that
kit. Applies to direct (Figure 3, page 5) or non-direct vent (Figure 4, page 5) method.
2. If using non-direct method with termination coupling only, see Figures 8 and 9.
•
If passing through noncombustible wall, provide hole diameter large enough to insert
the pipe through. Sleeve and spacers are not required.
3. Maintain minimum one-inch clearance from combustible materials to vent pipe; 0"
clearance for noncombustible materials.
4. Refer to vent termination WARNING, item 19 on page 3.
Ve n t in g t h ro u g h e xis t in g c h im n e y o r ro o f
1. Direct vent method — follow instructions supplied in Weil-McLain Through-Roof or
Through-Unused-Chimney Termination Kit to assemble termination.
2. Non-Direct vent method (only through the roof, not through chimney):
•
•
Vent pipe must extend through roof flashing, jacket or thimble. See Figure 10.
Vent may pass through floor, inside wall or concealed space when installed according
to vent pipe manufacturer's instructions.
3. Maintain minimum one-inch clearance from combustible materials to vent pipe.
6
Part Number 550-110-268/0699
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S t a R-3 4 Ve n t in g S u p p le m e n t
Figure 8 Sidewall termination installation (non-direct venting)
¼" to ¾" between stop
on termination and
metal plate
4" galvanized sleeve
(through 4¹⁄₈" hole for
combustible wall)
Pipe section
Metal plate
Metal plate
Spacers (2)
(to support and
center vent in
sleeve)
Pipe section
Sealant
Sealant
Termination coupling
26809
Figure 9 Non-direct vent through sidewall (using
Figure 10 Non-Direct vent through roof
Follow StaR-34 manufacturer’s instructions
for proper installation of vent runs, including
slope and support.
termination coupling)
Follow StaR-34 manufacturer’s instructions
for proper installation of vent runs, including
slope and support.
StaR-34
vent starter tee
StaR-34
vent starter tee
26805b
26804b
Part Number 550-110-268/0699
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G O LD G V W a t e r b o ile r — S e r ie s 3
Installation — assembly continued
Finish the vent
installation
In s t a llin g c o n d e n s a t e t u b in g
Figure 11
1. See Figure 11 to install condensate tubing
(provided by others). Use condensate pump
if floor drain is higher than condensate drain
on boiler.
Installation of condensate tubing
StaR-34
vent starter tee
If required:
•
•
use a low-profile pump — OR —
set boiler on foundation (see GV Series
3 Boiler Manual) to allow gravity flow
to pump.
2. Size pump in gal/hr. (boiler model):
•
•
•
•
0.78 (GV-3)
1.17 (GV-4)
1.56 (GV-5)
1.95 (GV-6)
5/8" O.D. tubing,
provided by
others
26806
Refer to pump manufacturer's instructions.
Drain to a non-freezing area.
If ve n t p ip e o r c o m b u s t io n a ir p ip e m u s t b e re a s s e m b le d
When vent pipe or combustion air pipe is disconnected for any reason, it must be reassembled
and resealed according to thisVenting Supplement,the direct vent termination kit instructions
and the vent pipe manufacturer's instructions.
Sealant recommended by vent pipe manufacturer must be used as indicated
in their instructions. Vent and combustion air connector piping must be
sealed gas-tight to prevent possibility of flue gas spillage and carbon
monoxide emissions, resulting in severe personal injury or death.
Weil-McLain
500 Blaine Street
Michigan City, IN 46360-2388
8
Part Number 550-110-268/0699
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