Venting - Maytag HN41240P User Manual

Instructions for Installation (cont'd)
Venting
=t WARNING _,WARNING
To insure proper venting of this gas-fired water Chemical vapor corrosion of the flue and vent sys-
heater, the correct vent pipe diameter must be uti- tern may occur if air for combustion contains certain
lized. Do not install other gas appliances on the chemical vapors. Spray can propellants, cleaning sol-
same vent with this water heater as this will vents, refrigerator and air conditioner refrigerants,
adversely affect the operation of the water heater, swimming pool chemicals, calcium and sodium chlo-
ride, waxes, bleach, and process chemicals are typi-
cal compounds which are potentially corrosive.
The combustion and ventilation air flow must not be obstructed.
i .w.....
The power vent water heater requires its own (sepa-
rate)venting system. It cannot be connected to an
existing vent pipe or chimney. It must be terminated
to the outdoors. Failure to properly install the vent-
ing system can result in asphyxiation, a fire or explo- |f-_l STRAPPING
sion and can cause DEATH, SERIOUS BODILY INJUR_
OR PROPERTY DAMAGE.
I I
_WARNING ayp_-
Obstructed or deteriorated vent systems m Horlzont_l runs must be securelysupported at 3_/2 foot intervals
sent a serious health risk or asphyxiation,
and vertical runs supported at 5 foot interva/s.
AWARNING I
VENTING THROUGH AN OUTSIDE WALL
The vent
pipe from the water heater must slope 75 GALLON 70,000 AND 75,000 BTU/HR, 50 GALLON
I
upward ¼ inch per f ve linear feet for any hor zon-
tal run. 52,500 BTU/HR MODELS ONLY (See rating plate for BTU/HR rating)
3" PVC, ABS or CPVC Schedule 40 vent piping:
All vent gases must be completely vented to the outdoors of the
structure (dwelling), • A 3" PVC Schedule 40-45 ° vent cap with wire screen is
supplied with the water heater.
.__ • A 3" PVC, ABS or CPVC Schedule 40-90 ° street ell; used
-" I[_ toconnecttheventpipetothewaterheaterwhenthevent
pipe is to be turned horizontally directly off the blower (sup-
MIN, RISE ¼"
PER FIVE FEET plied locally).
• 3" PVC, ABS or CPVC Schedule 40 pipe (must be sup-
I 1 pEed local/y).
3-Pvc, ABS O R O,vc
I
, AWARNING SCHEDULE 40" 90*/."T"]
[ I
Failure to have required clearances between water STREET ELBOW ( _J
heater and combustible material will result in a fire
_
3" PVC, A BS ORCPVC
hazard. SCHEDULE 40 PiPE VENTCAP
WITHSCREEN
=t WARNING I
Be sure vent pipe is properly connected to prevent / I
l escape Of danc_erous flue gases which could cause
I deadly asphyxiation.
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