Maytag HR640DJRT Water Heater User Manual


 
11
TEMPERATURE-
PRESSURE
RELIEF VALVE
COLD INLET
WATER LINE
HOT OUTLET
TO HOUSE
THREADED TO
SWEAT COUPLING
3/4” THREADED
NIPPLE
3/4” THREADED
NIPPLE
FLOOR DRAIN
DISCHARGE PIPE
(Do not cap or plug)
THREADED TO
SWEAT COUPLING
6” AIR GAP
HOT
COLD
SHUT-OFF
VALVE
Water Piping
Instructions for Installation (cont’d)
NOTE: Your water heater is super insulated to minimize
heat loss from the tank. Further reduction in heat loss
can be accomplished by insulating the hot water lines
from the water heater.
* WARNING
HOTTER WATER CAN SCALD: Water heaters are intended to
produce hot water. Water heated to a temperature which will
satisfy clothes washing, dish washing, and other sanitizing
needs can scald and permanently injure you upon contact.
Some people are more likely to be permanently injured by hot
water than others. These include the elderly, children, the
infirm, or physically/mentally handicapped. If anyone using hot
water in your home fits into one of these groups or if there is a
local code or state law requiring a certain temperature water at
the hot water tap, then you must take special precautions. In
addition to using the lowest possible temperature setting that
satisfies your hot water needs, a means such as a mixing
valve, should be used at the hot water taps used by these
people or at the water heater. Mixing valves are available at
plumbing supply or hardware stores. Follow manufacturers
instructions for installation of the valves. Before changing the
factory setting on the thermostat, read the “Temperature
Regulation” section in this manual.
*See illustration on page 10 for mixing valve usage.
The illustration shows the attachment of the water piping to
the water heater. The water heater is equipped with 3/4
inch water connections.
If a water heater is installed in a closed water supply
system; such as one having a back-flow preventer, check
valve, water meter with a check valve, etc. in the cold
water supply; means shall be provided to control thermal
expansion. Contact the local utility or call Maytag
Customer Service at 1-800-788-8899 for an authorized
servicer on how to control this situation.
NOTE: If using copper tubing, solder tubing to an
adapter before attaching the adaptor to the cold water
inlet connection. Do not solder the cold water supply
line directly to the cold water inlet. It will harm the dip
tube and damage the tank.
NOTE: To protect against untimely corrosion of hot
and cold water fittings, it is strongly recommended
that di-electric unions or couplings be installed on this
water heater when connected to copper pipe.
1. Look at the top cover of the water heater. The water
outlet is marked hot. Connect the hot water pipe to the
hot water outlet of the water heater.
2. Look at the top cover of the water heater. The cold
water inlet is marked cold. Connect the cold water pipe
to the cold water inlet of the water heater.
T&P Valve and Pipe Insulation
Remove insulation for T&P Valve and pipe connections
from carton.
Fit pipe insulation over the incoming cold water line and
the hot water line. Make sure that the insulation is against
the top cover of the heater.
Fit T&P Valve insulation over
valve. Make sure that the
insulation does not interfere
with the lever of the T&P valve.
Secure all insulation using
tape.