25
Water Supply Connection
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
!
!
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 in-
stalled in a closed water system, such as one having
a back flow preventer in the cold water supply line, a
safety device 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 pe-
riodically to prolong product life.
Typical Installation
