Operating instructions

8
6. FLUSHING THE BOILER
All water contains some sediment which settles on
the inside of the coil. Consequently, the heater should
be periodically backwashed. This is accomplished by
installing hose bibs as illustrated and allowing water at
city pressure to run into hosebib A, through the heater,
and out hosebib B until the discharge is clear. The tees
in which the hosebibs are located should be the same
size as heater connections to minimize pressure drop.
7. HARD WATER
May be applicable to some city and particularly well
water. Have your water analyzed by a qualied water
treatment specialist to determine if a water softener,
conditioner or ltration is required. Treated water will
ensure longer tankless heater life and performance
and is also benecial to all the piping and xtures in the
building.