Your Supplemental Furnace is designed to be
asupplementalorcentralheatingsourcefor
your home. This solid fuel furnace may be
installedinconjunction withaproperlyoperating
central furnace that is listed or certified in
accordancewithnationally recognizedsafety
standardsandequippedwiththerequired
controls and other safety features and which has
beeninstalledwithappropriatestandardsof
National Fire Protection Association with
installation clearances specified in the furnace
nameplatemarking. The installationmust be
accomplished by a qualified agency (one who is
engaged in, and is responsible for, or is thor-
oughlyfamiliarwiththeinstallation and operation
of the gas, oil, and solid fuel burning heating
appliances, who is experienced in such work,
familiarwithallprecautions required, and has
complied with all the requirements of the
authorityhavingjurisdiction.)Theinstallation
shall be in strict accordance with the
manufacturer'sinstallationinstructionsfurnished
with the solid fuel furnace.
The chimney connector of the furnace is to
be installed to provide clearances to combus-
tible material not less than specified in the
individual classifications and marked on the
furnace. The chimney connector must be
connected to a chimney suitable for use with
residentialtypeorbuildingheatingappliances
which burn solid fuel.
The furnace is designed to operate in either
parallelorseries air flowarrangementwiththe
central furnace or as a central furnace.
PARALLEL INSTALLATION: The design is such
that when the blower comes on,
the blower on the central system also comes on.
Theblowerwillonlycome on when the tempera-
ture in the plenum has reached the setting on
the blower control. This is to insure that there is
sufficient warm air in the system to make it
efficient for the unit to operate. When the central
system thermostat calls for heat, the central
system will operate by the burner igniting and
the blower coming on. It is possible that both
systems will operate simultaneously. It is
recommended that for the most efficient use of
your Supplemental Furnace, that it be fired as
much as possible in order to reduce the demand
on your existing central heating system. This
unit has an optional motorized natural draft kit
that operates from a wall thermostat. When the
temperature falls below the setting on the wall
thermostat,the motorized natural draft willopen
to increase heat.
The warm air supply outlet of the supplemen-
tary furnace shall not be connected to the cold
air return inlet of the central furnace because the
possibility exists of components of the central
furnaceoverheatingandcausingthecentral
furnacetooperateother than is intended.
SERIES INSTALLATION: This type of installa-
tion uses only the blowers of the existing central
furnace. The solid fuel fan/limit control must
also control the functions of the existing fur-
nace. All electrical power must come from a
single branch circuit (see Fig. 15).
CENTRALFURNACEINSTALLATION:Asa
centralfurnace,theunitfunctionsindependently
of any other system. The blower will come on
whentheplenumtemperaturereachesthe
setting on the blower control.
HOW THE FURNACE FUNCTIONS
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