Water Piping - Maytag HJ640NBDS User Manual

Direct vent gas water heater
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Instructions for Installation (cont'd)
Water Piping
AWARNING
• Look at the top cover of the water heater. The water outlet
HOTTER WATER CAN SCALD: Water
heaters
are
is marked hot. Put two or three turns of teflon tape around
intended to produce hot water. Water heated to a
the threaded end of the threaded-to-sweat
coupling and
!temperature which will satisfy clothes washing, dish
around both ends of the 3 ,,
/, threaded nipple. Using flexible
washing, and other sanitizing needs can scald and
permanently injure you upon contact. Some people
connectors,
connect the hot water pipe to the hot water
are more likely to be permanently
injured by hot
outlet on the water heater.
water than others. These include the elderly, children,
the infirm, or physically/mentally
handicapped.
If
• Look at the top cover of the water heater. The cold water
anyone using hot water in your home fits into one of
these, groups or if there is a local code or state law
inlet is marked cold. Put two or three turns of teflon tape
requiring a certain temperature
water
at the hot
around the threaded end of the threaded-to-sweat
coupling
water tap, then you must take special precautions. In
and around both ends of the 3//, threaded nipple. Using flexi-
addition to using the lowest possible temperature
setting that satisfies your hot water needs, a means
ble connectors, comlect the cold water pipe to the cold water
such as a mixing valve, should be used at the hot
inJ.etof the water heater.
water
taps used by these people
or at the water
heater. Mixing valves are available at plumbing
sup-
NOTE: This water heater is insulated to minJntiz¢hcat loss
ply or hardware stores. Follow manufacturers instruc-
tions for installation
of the valves.
Before changing
from the tank. Further reduction in heat loss can be aceom-
the factory
setting
on the thermostat,
read the
pfishedbyinsulatlngthehotwaterlinesfromthewaterhcater.
"Temperature Regulation" section in this manual.
THREADED T O
SWEAT COUPLINGS
if a water heater is installed in a closed water supply system;
/_
such as one having a back-t']ow preventer, check valve, water
___._
_[_
_
meter with a check valve, etc.., in the cold water supply;
SHUT-OFF VALVE
means shall be provided to control thermal expansion.
Contact the local utl/ity or call Maytag Customer Service
Center at 1-800-788-8899
for an authorized installer on how
riOTOUTLET TO
COLD INLET
to control this situation.
HOUSE
_
[ _
WATER LINE
NOTE:
To protect against untimely corrosion of hot and
cold water fittings, it is strongly recommended that dl-elec-
3/4" THREADED -
"i_/4 " THREADED
tric unions or couplings be installed
on this water heater
NIPPLE
NIPPLE
/
when connected to copper pipe.
The illustration shows the attachment of the water piping to
the water heater. The water heater is equipped with 3/, inch
_
_
TEMPERATURE-
water connections.
[
/PRESSURE
RELIEF
NOTE: If using copper tubing, solder tubing to an adapter
_
/[
VALVE
before attaching the adapter to the cold water inlet connection.
|
"_"-'1"- DISCHARGE
PIPE
Do Rot solder the cold water supply line direcdy to the cold
/
/
(Do not cap
water inlet. It will harm the dip robe and damage the tank.
__[
_11
orplug)
FLOOR DRAIN
3O

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Hj640pbdsHj650nbdsHj650pbds

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