Well-Connect WCVC-16 Installation Manual page 20

d. To ensure proper airflow, and to prevent "short-cycling",
back-draft dampers MUST be installed both on the outlet of
the Well-Connect, and on the outlet of the fossil fuel furnace,
upstream of where the Well-Connect supply duct connects
to the main duct. Terra Caloric will provide a twelve inch
(12") round damper for the outlet of the Well-Connect. The
other damper will need to be custom-sized to the existing
ductwork at each particular site. These can usually be
sourced locally, but if not, call Terra Caloric for assistance.
Controls:
For optimum comfort and efficiency, operate both the Well-
Connect and fossil fuel furnace as one complete multi-stage
system. The wireless thermostat supplied with the Well-
Connect is capable of controlling up to two stages of heating
and two stages of cooling, and can therefore be used to
control both the Well-Connect and one other stage of
heating and/or cooling. Controlling more than two stages of
heat or cooling will require more advanced controls, or use
of the existing thermostat in conjunction with the wireless
Well-Connect thermostat. Detailed instructions for multi-
stage applications are found in Section 6.
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