13
SECTION V: VENTING
This w at er heat er has been shipped w it h a draf t divert er f or w hich it w as designed w it h ref erence t o t he horizont al
and vert ical planes, it s cert if ied cat egory I, per lat est ANSI Z 21.10.3-2015.CSA 4.3-2015 revision. Ref er t o t he
lat est edit ion of t he Nat ional Fuel Gas Code (ANSI Z223.1-lat est edit ion), or in Canada, t he Nat ural Gas and
Propane inst allat ion Code (B149.1-00 lat est edit ion). If removed, t he draf t divert er must be replaced in t he same
posit ion and secured t o t he jacket t op by t he screw s w it h w hich it w as inst alled.
This water heater must be connected to a lined masonry chimney or venting system approved by local codes or
ordinances. The vent connector used to attach the draft hood outlet to the chimney or approved vent must be of the same
diameter as the draft diverter outlet or larger. For proper venting in certain installations, a larger vent connector may be
needed. Consult venting tables in ANSI standard (Z223.1- latest edition), National Fuel Gas Code and CAN/CGA (B149.1
or B149.2-latest editions) Natural Gas and Propane Installation Code, or local code officials for proper application for your
area.
Optional Intake Venting
The venting instructions must be followed to avoid restricted combustion or recirculation of flue gases. Such conditions
cause sooting or risks of fire and asphyxiation.
WARNING
The intake vent system must be properly installed. Failure to properly install the vent system could result in property
damage, personal injury, or death.
Use only the vent terminals provided or factory authorized terminals for venting this water heater.
The water heater requires its own separate intake venting system.
Do not terminate the venting where noise from intake venting will be objectionable. This includes locations close to or
across from windows and doors. Avoid anchoring the intake vent pipes directly to framed walls, floors, or ceilings unless
rubber isolation pipe hangers are used. This prevents any vibrations from being transmitted into the living spaces.
Do not exceed the venting distances or the number of elbows listed in this manual. Exceeding the maximum venting
distances may cause the water heater to malfunction or cause an unsafe condition.
DO NOT operate this water heater until the venting installation is complete and the piping completed. Failure to complete
installation before operation can result in property damage, personal injury, or death.
The vent ing syst em must be inst alled properly f ollow ing all local codes or in t he absence of local codes, t he
lat est edit ion of t he Nat ional Fuel Gas Code (ANSI Z223.1- lat est edit ion), or in Canada, The Nat ural Gas
Inst allat ion Code (B149.1-00 lat est edit ion) or CAN/CGA B149.2 Propane Inst allat ion Code (Lat est Edit ion).
Failure t o properly inst all t he vent ing syst em could result in propert y damage, personal injury, or deat h.
Caref ully inspect t he vent ing syst em of a replacement w at er heat er inst allat ion bef ore connect ing t o t he vent ing
syst em. All joint s in t he vent connect or must be securely f ast ened w it h screw s and f it t ight ly t oget her. Inspect
t he vent ing syst em f or signs of det eriorat ion (rust and perf orat ion) and replace any sect ions t hat are not in good
condit ion.
The chimney must be lined and in good condit ion. Check t o make sure t he vent ing syst em is properly sized f or
t he w at er heat er. If t he vent ing syst em w as previously sized f or anot her gas appliance t hat has been removed,
t he vent ing syst em may now be t oo large. Ref er t o t he lat est edit ion of t he Nat ional Fuel Gas Code (ANSI
Z223.1-lat est edit ion), or in Canada, t he Nat ural Gas and Propane Inst allat ion Code (B149.1-00 lat est edit ion)
f or t he correct sizing of vent ing syst ems and common vent ing w it h anot her gas appliance. Do not vent t his
w at er heat er int o t he vent ing syst em of anot her gas appliance designed t o vent under posit ive pressure.
The w at er heat er should be inst alled as close as pract ical t o t he vent ing syst em t o minimize t he vent connect or
lengt h required. Ref er t o local codes f or t he dist ance limit at ions on vent connect or lengt hs. At t he complet ion of
t he w at er heat er inst allat ion, t he burner and vent ing syst em must be checked f or proper operat ion w it h all ot her
commonly vent ed appliances in operat ion. Check f or spillage of f lue product s around t he out side relief opening
of t he draf t hood af t er several minut es of operat ion. The f lame f rom a mat ch should be draw n int o t he draf t hood.
Do not use t he w at er heat er or connect ed equipment if spillage is det ect ed unt il t he problem is correct ed. Ref er
t o t he lat est edit ion of t he Nat ional Fuel Gas Code, or in Canada, t he Nat ural Gas and Propane Inst allat ion Code
f or complet e det ails on t he ‘‘ Procedure t o Be Follow ed t o Place Equipment in Operat ion’’ .
WARNING
