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Section 1 - Furnace Installation
Pool and/or Hot Tub Heating
Valves should be installed so the heat exchanger can be
isolated and bypassed when shock-treating or adding
chemicals to a pool or hot tub (Fig. 38). Incorrect
chemical concentrations can cause rapid corrosion to
the heat exchanger. Bypassing the heat exchanger is
recommended until the pH has stabilized between 7.2
and 7.8.
If the swimming pool or hot tub is salt water treated, the
heat exchanger should be a shell and tube type (p/n 148,
151 or 177). See the Hydronic Component Selection
Guide (p/n 2482) for more information.
CAUTION
Do not install a swimming pool heat exchanger
inside a home or building below the level of the
pool as a damaged heat exchanger may result in
extensive ooding and draining of the pool.
WARNING
Do not use automotive or ethylene glycol
antifreeze in an outdoor furnace connected to
a swimming pool heat exchanger as a damaged
heat exchanger may cause severe personal
injury, death, or substantial property damage.
CAUTION
Do not operate the outdoor furnace frequently
or for extended periods of time with the water
temperature below 150˚F (65˚C) as this will result
in more condensation in the rebox that can lead
to corrosion.
Fig. 38
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