Installing the new water heater, Water piping, Warning – State P6 20 10 MS K User Manual
Page 6

Water Piping
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 water supplier or plumbing contractor on how to
control this situation.
The illustration shows the attachment of the water piping to
the water heater. The water heater is equipped with
3
⁄
4
inch
water connections .
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: This 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.
“This appliance has been designed certified as a water
heater complying with Standards for Safety—UL174.”
Installing the New Water Heater
COLD INLET
WATER LINE
HOT OUTLET
TO HOUSE
TEMPERED
WATER
OUTLET
TEMPERATURE-PRESSURE
RELIEF VALVE
SHUT-OFF VALVE
(Recommended)
MIXING VALVE
6
DISCHARGE PIPE
(Do not cap or plug.
Provide 6
″″ air gap
between pipe and
drain.)
DRAIN VALVE (NOTE: ONLY 30 GALLON
MODEL IS EQUIPPED WITH
A DRAIN VALVE)
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 perma-
nently injured by hot water than others. These include the
elderly, children, the infirm, or physically/mentally handi-
capped. 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, some type of tempering device,
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 of the
thermostat, read the “Temperature Regulation” section in
this manual.