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Figure 19. Water connection as shipped.
Figure 20. Water connection reversal.
Figure 21. Typical water piping.
The heater must be protected from back-
siphoning of water, which can result in dry starts. If
there is any chance of back-si phon ing, provide a check
valve between the pool and the fi lter pump inlet.
Arrangement of pool system components
other than as illustrated in these diagrams can
affect the operation of the heater's water pressure
switch. Location of the heater above or below the
pool water surface can also affect operation of
the switch. In general, the pressure switch can be
adjusted to accommodate this effect if the heater
water connections are no more than six feet below the
pool water surface and no more than 15 feet above
it. See instructions for pressure switch adjustment in
the heater start-up section of this manual for more
information about this. Note that when pool equipment
is located below the pool surface a leak can result in
large scale water loss or fl ooding. Jandy Pool Products,
Inc. cannot be responsible for such water loss or
fl ooding or the damage caused by it.
Do not install a shutoff valve or any kind of
variable restriction in the water piping between the
heater outlet and the pool/spa.
Pool systems with water fl ow rates higher than
125 GPM require an adjustable external bypass at the
heater. See the section on start-up and adjustment for
this information.
2K-3. Connections at Heater
The Hi-E
has a universal water header and
2
fl ange design. With this feature, a variety of piping
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