Installation guide

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115V.60Hz.
N
: CONNECTION
GR_ND BOX
LOWVOLTAGE
TERMINALBOARD
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THERMOSTAT
CAUTION
Do NOT exceed 115V/0.8 amp. maximum current load
for both the EAC terminal and the HUM terminal com-
bined.
NOTE: The humidifier will be powered when the furnace is fired
and the circulating air blower comes on. The electronic air cleaner
will be powered anytime the thermostat calls for air movement.
However, the electronic air cleaner is NOT energized during con-
tinuous fan operation controlled by the electronic fan control.
8. DuctworkandFilter
Poison carbon monoxide gas hazard.
Do NOT draw return air from inside a closet or
utility room where furnace is located. Return
air duct MUST be sealed to furnace casing.
Failure to properly seal duct can result in
personal injury and/or death.
4.
It is recommended for furnaces installed without a cooling
coil that the outlet duct be provided with a removable access
panel. This panel should be accessible when the furnace is
installed so that the heat exchanger can be viewed for in-
spections. The access panel MUST be sealed to prevent
leaks.
NOTE: Dampers (purchased locally) can be either automatic or
manual. Manually operated dampers MUST be equipped with a
means to prevent furnace or air conditioning operation unless
damper is in the full heat or cool position.
Installation
NOTE: Design and install air distribution system to comply with
Air Conditioning Contractors of America manuals and/or NFPA
pamphlets 90A and 90B or other approved methods that conform
to local codes and good trade practices.
1. When furnace supply ducts carry air outside furnace area,
seal return air duct to furnace casing and terminate duct out-
side furnace space.
2. Install air conditioning cooling coil (evaporator) on outlet side
of furnace.
3.
If separate evaporator and blower unit are used, install good
sealing dampers for air flow control. Chilled air going through
the furnace could cause condensation and shorten furnace
life.
Poison carbon monoxide gas hazard.
Cool air passing over heat exchanger can
cause condensate to form resulting in heat
exchanger failure.
This could result in personal injury and/or
death.
Connections- UpflowFurnace
NOTE: Return air can enter through either side, both sides, or the
bottom. Return air through the back of the unit is NOT allowed.
When the furnace is located in an area near or adjacent to the liv-
ing area, the system should be carefully designed with returns to
minimize noise transmission through the return grille. Any blower
moving a high volume of air will produce audible noise which
could be objectionable to when the unit is located very close to liv-
ing areas. It is advisable to route the return air ducts between
floors or through the attic.