507769-04
Page 9 of 53
Issue 1927
Figure 8.
Equipment in Confined Space
(Inlet Air from Ventilated Attic and Outlet Air to
Outside)
Figure 9.
Equipment in Confined Space
(Inlet Air from Ventilated Crawl Space and Outlet Air
to Outside)
If this unit is being installed in an application with
combustion air coming in from a space serviced by an
exhaust fan, power exhaust fan, or other device which
may create a negative pressure in the space, take care
when sizing the inlet air opening. The inlet air opening
must be sized to accommodate the maximum volume
of exhaust air as well as the maximum volume of
combustion air required for all gas appliances serviced
by this space.
CAUTION
Installation
Setting Equipment
Do not install the furnace on its front, back or in the
horizontal position. See Figure 12. Do no connect the
return air ducts to the back of the furnace. Doing so
will adversely affect the operation of the safety control
devices, which could result in personal injury or death.
CAUTION
Select a location that allows for the required clearances
that are listed on the unit nameplate. Also consider gas
supply connections, electrical supply, vent connection,
condensate trap and drain connections, and installation
and service clearances [24 inches (610 mm) at unit front].
The unit must be level from side to side. Tilt the unit slightly
(maximum 1/2 in. from level) from back to front to aid in the
draining of the heat exchanger. See Figure 11.
Shipping Bolt Removal
Units with a 1/2 hp & 3/4 hp blower motors are equipped
with three flexible legs and one rigid leg. The rigid leg
is equipped with a shipping bolt and a flat white plastic
washer (rather than the rubber mounting grommet used
with a flexible mounting leg). See Figure 10. The bolt and
washer must be removed before the furnace is placed into
operation. After the bolt and washer have been removed,
the rigid leg will not touch the blower housing.
Figure 10.
Units with 1/2 HP & 3/4 HP
Blower Motor
NOTE:
These units may be equipped with a shipping pad
under the blower housing. Remove the shipping pad prior
to operation.
Allow for clearances to combustible materials as indicated
on the unit nameplate. Minimum clearances for closet or
alcove installations are shown in Figure 13.
Blower access panel must be securely in place when
blower and burners are operating. Gas fumes, which
could contain carbon monoxide, can be drawn into
living space resulting in personal injury or death.
WARNING
Содержание 96G1DFE
Страница 30: ...507769 04 Page 30 of 53 Issue 1927 Figure 50 Trap Drain Assembly Using 1 2 PVC or 3 4 PVC ...
Страница 36: ...507769 04 Page 36 of 53 Issue 1927 Figure 57 Typical Wiring Diagram ...
Страница 48: ...507769 04 Page 48 of 53 Issue 1927 Troubleshooting Heating Sequence of Operation ...
Страница 49: ...507769 04 Page 49 of 53 Issue 1927 Troubleshooting Heating Sequence of Operation continued ...
Страница 50: ...507769 04 Page 50 of 53 Issue 1927 Troubleshooting Cooling Sequence of Operation ...
Страница 51: ...507769 04 Page 51 of 53 Issue 1927 Troubleshooting Continuous Fan Sequence of Operation ...