Weil-McLain STAR-34 User Manual

GOLDGOLD

GOLD

GOLDGOLD

GVGV

GV

GVGV

Hazard definitions

WW

W

WW

ater boiler — Series 3ater boiler — Series 3

ater boiler — Series 3

ater boiler — Series 3ater boiler — Series 3

Venting Supplement

StaRStaR

StaR

StaRStaR

Special gas vent system vent and combustionSpecial gas vent system vent and combustion

Special gas vent system vent and combustion

Special gas vent system vent and combustionSpecial gas vent system vent and combustion
air supplementair supplement

air supplement

air supplementair supplement

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.

-34-34

-34

-34-34

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.

®

To the installer:

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.

This Venting Supplement must only be used by a qualified installer/service
technician. Read these instructions completely before beginning the
installation. Failure to f ollo w these instructions in pro per 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 W eil-M cLain Vent/Air Intake Termination Kit. — OR —

• GV Water Boiler Series 2 & 3 Direct vent Through-roof or Through-

unused-chimney Venting Supplement

Through-Roof or Through-Unused-Chimney Te rmination Kit.

• StaR-34 manufacturer’ s instructions supplied with vent material.
For installations above 5,500 feet use only direct v ent (ducted c ombustion

air) when sidewall venting. All of the vertical (through-roof or through­unused-chimney) methods in this V enting Supplement ar e acceptable. Can
result in severe personal injury, death or substantial property damage if
ignored.

, if using Weil-McLain

Part Number 550-110-268/0699

GOLD GV Water boiler — Series 3

Combustion air supply

Special note

Refer to GV Series 3 Boiler Manual for sizing free area of combustion/ventilation air openings.
All boilers experience some condensation in section assembly during start-up. Unlike most

conve ntional boilers, cond ensation is minimized in the
system, maintaining boiler r eturn water temperature above 130

GV Series 3 Boiler by a built-in mixing

0

F , during steady state operation.

Flue gas condensate is slightly acidic. In most cases pH lev el is not harmful to v ents o r drains.
When combustion air is contaminated by vapors from products and areas, listed in Table 1
below, condensate acidic levels incr ease. Higher acidic levels attack many materials, including
stainless steel commonly used in high efficiency systems.

You may choose to use outside combustion air for any of the following reasons:

• Installation is in an area containing contaminants list ed in Table 1 below, which will
induce acidic contamination.

• You want to reduce infiltration into your home through openings around windows
and doors.

Table 1 Corrosive contaminants

Products to avoid Areas likely to have contaminants

Spray cans containing chloro/fluorocarbons Dry cleaning/laundry areas and establishments

Permanent wave solutions Swimming pools

Chlorinated waxes/cleaners Metal fabrication plants

Chlorine-based swimming pool chemicals Beauty shops

Calcium chloride used for thawing Refrigeration repair shops

Sodium chloride used for water softening Photo processing plants

Refrigerant leaks Auto body shops

Paint or varnish removers Plastic manufacturing plants

Hydrochloric acid/muriatic acid Furniture refinishing areas and establishments

Cements and glues New building construction

Antistatic fabric softeners used in clothes
dryers

Chlorine-type bleaches, detergents, and clean­ing solvents found in household laundry rooms

Adhesives used to fasten building products and
other similar products

Remodeling areas

Garages with workshops

To prevent potential of severe personal injury or death, check for areas and
products listed above befor e installing boiler. If found:

• remove products permanentl y — OR —

• provide outside combustion air

2

Part Number 550-110-268/0699

StaR-34 Venting Supplement

Vent termination

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

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 additiona l
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 c ould 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 t o prev ent accide ntal co ntact by people
or pets.

6. Do not terminate vent in window well, stairwell, alcove,
courtyard, or other recessed ar eas.

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.

8. Vent must terminate more than 1 foot above grade or

anticipated snow line. In addition , vent t ermination must be
at least 7 feet above public walkway and 3 feet above an y forced
air intake within 10 feet. Stay well away from trees, shrubs,
and decorative items. Site conditions may dictate greater
clearances. See Figure 1.

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 othe r equipme nt.

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 bloc k vent pipe.

12. Vent must terminate at least 6 feet away from adjacent walls.

13. Do not terminate vent closer than 5 f eet below roof overhang.

14. Do not terminate vent above an y door or window. Condensate
can freeze, causing ice formatio ns.

15. Do not use existing chimney as raceway if another appliance
or fireplace is vented into or thr ough 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.

Figure 1 V ent termination locations

3 feet

If within 10 feet

7 feet

Public Walkway

Part Number 550-110-268/0699

Forced

air intake

26808

1 foot

1 ft

1 ft

1 ft

Snow

26807

3