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26
Operation
Description of Operation
Air and gas combine in burner
and enter dry flame tube, which
enables complete combustion
producing no undesirable gases.
Water is dispersed into
upper canister and is
broken into ever smaller
droplets by passing
down through palls.
Water is heated as
combustion gases pass
up through palls and
out of heater.
Hot water collects
in lower canister.
System operation is controlled
by float switches in remote
storage tank (not shown).
Very efficient heat exchange keeps
exhaust within a few degrees of
incoming water temperature.
Water level is controlled by four float switches in
standpipe. These switches control the VFD to switch
between Low and High speed.
Pump runs
continuously
during heating
cycle.
