Gas Piping - Kenmore POWER MISER 153.339210 HA Owner's Manual

Toinsure proper v enting ofthisgas-fired w aterheater, the
correct ventpipe diameter must b eutilized, A nyadditions or
deletions ofother g asappliances ona common vent w iththis
water h eater m ay adversely affect t heoperation ofthewater
heater.Consult yourgassupplier if anysuchchanges a re
planned.
Forproper venting in certain installations, a larger d iameter
vent p ipe may benecessary, Consult your l ocal S ears S ervice
Center o r gassupplier to aidyouindetermining theproper
venting f oryour w ater heater from thevent t ables i nthecurrent
edition o ftheNational Fuel G as Code A NSt Z 223,1/NFPA 54,
Periodically check t heventing s ystem forsigns ofobstruction
ordeterioration andreplace i fneeded,
The combustion and ventilation airflowmust n ot b eobstructed,
The water h eater withdrafthood installed must b econnected
toa chimney or listed ventpipesystem, which terminates to
the outdoors, Never operate thewater heater unless i tisvented
totheoutdoors andhasadequate airsupply t oavoid risks of
improper operation, explosion or asphyxiation,
Forproper drafthood attachment, thedraft h ood legs may
beangled slightly i nward,
Place t hedraft h ood legs inthereceiving holes onthe topof
thewaterheater. Thelegswillsnap intheholes togivea
tightfit.Secure twolegs totopwithsheet m etal screws,
Place t hevent p ipe over t hedraft h ood, With thevent p ipe in
position, drilla small h ole through b oththeventpipeand
draft h ood, Secure them together witha sheet m etal screw,
SeeFigure 17.
DRAFT HOOD _ VENT_L $
so.% I" I e.ArTHO00
VENT TO OUTDOORS
DRAFT HOOD
FIGURE17.
Obstructed or deteriorated vent systems may present serious
health risk or asphyxiation.
The vent pipe from the water heater must be no less than the
diameter of the draft hood outlet on the water heater and must
slope upward at least 1/4 inch per linear foot (21 mm per meter).
See Figure 18,
CHIMNEY
All vent gases must be completely vented to the outdoors of the
structure (dwelling). Install only the draft hood provided with
the new water heater and no other draft hoed.
Vent pipes must be secured at each joint with sheet metal
screws,
There must be a minimum of 6 inches (153 mm) clearance
between single wall vent pipe and any combustible material.
Fill and seal any clearance between single wall vent pipe and
combustible material with mortar mix, cement, or other
noncombustible substance. For other than single wall, follow
vent pipe manufacturer's clearance specifications. To insure
a tight fit of the vent pipe in a brick chimney, seal around the
vent pipe with mortar mix cement.
Failure to have required clearances between vent piping and
combustible material will result in a fire hazard.
Be sure vent pipe is propedy connected to prevent escape of
dangerous flue gases which could cause deadly asphyxiation.
• Flue gases may escape if vent
p_peis not connected
• Do not store corrosive chemicals
in vicini_' of water heater.
• Chemical corrosion of flue and
vent system can cause serious
injury or death.
• Contact a qualified installer or
service agency
Breathing carbon monoxide can cause brain damage
or death Always read and Lmderstand instruction manual
Chemical vapor corrosion of the flue and vent system may
occur if air for combustion contains certain chemical vapors.
Spray can propellants, cleaning solvents, refrigerator and air
conditioner refrigerants, swimming pool chemicals, calcium
and sodium chloride, waxes, bleach and process chemicals
are typical compounds which are potentially corrosive.
Gas Piping
Fire and Explosion Hazard
• Do not use water heater with
any gas other than the gas
shown on the rating plate
, Excessve pressure to gas
control valve can cause serious
injury or death
, Turn off gas lines during
installation
, Contact qualified installer or
service agency
FIGURE18.
15