Armstrong International
IOM-706 V2.0
Flo-Direct Water Heater
Water Connections
Page 17 of 45
Water Connections
Warranty is void unless clean,
potable water is used.
If large pressure swings
occur, install pressure
regulating valve in inlet
water line.
Note
: Incoming water must not
contain any chloride compounds
above 100 ppm or salts. These
will destroy 304 stainless steel.
(Alternative metals are available.)
Line from transfer
pump must be routed
to top of storage tank
to prevent backflow.
Inlet water pipe must be at
least as large as heater's
water inlet piping. Maximum
recommended water velocity
is 9 ft/sec in inlet piping.
Line from transfer
pipe must be at least
as large as transfer
pump pipe.
Storage tank
Suction hose between
heater and transfer
pump must be flexible
to isolate vibration.
Lower canister
Transfer pump assembly must
be installed on level surface
and at or below heater level to
maintain pump's prime.
