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Optional Add-On Air Conditioning
Whether split system or single package, an energy-
saving NORDYNE Air Conditioner is available that has
been designed specifi cally for manufactured housing
applications and can best handle your home comfort
needs. Ask your dealer or contractor about NORDYNE
add-on central air conditioning systems.
Single package unit includes cooling coils, compressor,
and vertical discharge fan. This type of unit connects with
the existing home air duct system (an optional close-off
damper is required with the furnace).
Split system unit with vertical discharge for quiet operation
connects with NORDYNE cooling coil furnace (optional
coil cavity required with “A” model furnaces).
MAINTENANCE
Homeowner Information
• On some closet installations, the return air opening
to the furnace may be on the fl oor, in the door, in the
side wall of the closet, or any combination of these. The
upper grille on the front of the furnace admits return air
to the blower. Return air must be provided back to the
circulating blower in order to provide air distribution.
See Figure 36.
• Filters - At least twice each season (more often in dusty
areas) remove and clean the air fi lters with a vacuum
or with warm water and soap. Reinstall when dry. Also
clean dust and lint around furnace and in the furnace
vestibule.
• During extremely cold weather, ice may form on the
furnace roof jack (Figure 37). Small amounts of ice
forming on the roof jack will present no problems to
proper furnace operation. Excessive ice formation
could restrict the combustion air supply to the burner,
causing ineffi cient burner operation. If excessive ice
has formed on the air inlet or exhaust portions of the
roof jack, it must be carefully removed.
Installer Information
All furnaces need periodic service at the beginning of each
heating season. Call your qualifi ed service contractor for
these items:
• Remove the air circulator and clean all dust and lint
from the unit with a stiff bristle brush.
• Inspect the combustion chamber blower compartment,
fl ue collar and Roof Jack.
• Check the gas valve (if applicable) and fuel line
connections for leaks.
• Make any adjustments necessary for good operation.
Figure 36. Periodic Cleaning
WARNING:
Use of furnace or air conditioning components
that are not included in the certifi cation of
this appliance may create a hazard, invalidate
the certifi cation, and in many states, make
installations illegal. Listed NORDYNE air
conditioning components are specifi ed on the
furnace label.
Additional Oil Furnace Maintenance
In addition to the preceding, the following should be
performed by a qualifi ed service contractor at least once
each season for oil-fi red furnaces:
• Replace the oil nozzle with the type nozzle specifi ed
for your furnace.
• Clean, adjust and replace if necessary the spark
electrodes.
• Reset the nozzle/drawer assembly to factory
specifi cations.
• Clean the inside of the furnace heat exchanger and
replace the combustion liner if necessary.
• Clean or replace the oil fi lter element at the oil tank.
• Adjust the burner for top effi ciency and check to make
sure all fi ttings are leak-tight.
Figure 37. Roof Jack
Check for
Ice Here
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