Gas Piping; Venting - Kenmore Power Miser 1533.31412 HA Owner's Manual

Toinsure proper v enting o f thisgas-fired w aterheater, t he
correct vent p ipediameter must b eutilized. Anyadditions or
deletions ofother g asappliances ona common vent w iththis
water h eater m ayadversely affect t heoperation ofthewater
heater.Consult yourgassupplier i f anysuchchanges are
planned.
Forproper v enting in certain installations, a larger d iameter
vent p ipe may benecessary. Consult yourlocal S ears S ervice
Center o r gassupplier toaidyouin determining theproper
venting f oryour w ater h eater from thevent t ables i nthecurrent
edition o ftheNational Fuel G as Code ANSI
Z223.1/NFPA 54.
Periodically check the venting system for signs of obstruction
or deterioration and replace if needed.
The combustion and ventilation air flow must not be obstructed.
The water heater with draft hood installed must be connected
to a chimney or listed vent pipe system, which terminates to
the outdoors. Never operate the water heater unless it is vented
to the outdoors and has adequate air supply to avoid risks of
improper operation, explosion or asphyxiation.
For proper draft hood attachment, the draft hood legs may
be angled slightly inward.
Place the draft hood legs in the receiving holes on the top of
the water heater. The legs will snap in the holes to give a
tight fit. Secure two legs to top with sheet metal screws.
Place the vent pipe over the draft hood. With the vent pipe in
position, drill a small hole through both the vent pipe and
draft hood. Secure them together with a sheet metal screw.
See Figure 17.
DRAFT HOOD _F
VENT 4 €
SCR I'I DRA THOOD
|
DRAFT HOOD
VENT TO OUTDOORS
)R 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 hood.
Vent pipes must be secured at each joint with sheet metal
screws,
There must be a minimum of 6 inches (153 ram) 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 properly connected to prevent escape of
dangerous flue gases which could cause deadly asphyxiation.
Breathing Hazard - Carbon Monoxide Gas
• Flue gases may escape if vent
p_peis not connected
• Do not store corrosive chemicals
in vicinity 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 understand 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,
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
i m |
Gas Piping
i
Fire and Explosion Hazard
• Do not use water heater with
any gas other than the gas
shown on the rating plate
• Excessive pressure to gas
control valve can cause serious
injury or death
• Turn off gas lines during
installation
• Contact qualified installer or
service agency
F_URE18.
15