24
Water Supply Connection
WATER SUPPLY CONNECTION
An approved manual water control valve (water shutoff
valve) must be placed on the cold water supply line.
All soldering materials and piping materials must be
suitable with potable water. If the water heater is installed
in a closed water system, such as one having a back
flow preventer in the cold water supply line, a safety de-
vice must be provided to control thermal expansion.
Troubleshooting Thermal Expansion
:
Contact the water supplier or local plumbing inspector on
how to control this situation.
WARNING
!
!
Be careful not to reverse the hot water outlet and
cold water supply line connections to the water
heater. This will cause your heater to operate dan-
gerously and void warranty.
Make sure the hot and cold lines are connected prop-
erly.
AFTER INSTALLATION
After the water heater installation is complete, purge the
water line to remove all the debris and air from the line.
Failure to do so may cause damage to the heater.
There is a wire mesh filter to trap debris from entering
the heat exchanger. This will need to be cleaned periodi-
cally to prolong product life.
WARNING
Use only brass connection nipples. Connecting
different types of metals with water flow creates
electrolysis (battery effect). Such effect will rust the
connections.
WARNING
!
!
Typical Installation
