Nordyne R-410A User Manual And Installation Instructions page 5

6 ft.
12"
Figure 2. Minimum Unit Clearances
• If practical, place the air conditioner where it
and the ducts will be shaded from the afternoon
sun when the heat load is greatest.
• Try to select a site for the unit that is as close
as possible to the proposed return grille loca-
tion.
• Keep in mind that the length of the supply and
return ducts should be kept to a minimum with
no sharp radius bends.
2. UNPACK THE UNIT
It is recommended that the unit be unpacked
at the installation site to minimize damage due
to handling.
CAUTION:
Do not tip the unit on its side. Oil may
enter the compressor cylinders and
cause starting trouble. If unit has been
set on its side, restore to upright posi-
tion and do not run for several hours.
Then run unit for a few seconds. Do this
three or four times with fi ve minutes
between runs.
Transition Duct Screws
Supply Air
Figure 3. Return and Supply Air Fittings
24"
12"
14" Duct Dimples
Return Air
a. Remove the bands from around the unit.
b. Unfold the top and bottom cap fl anges.
c. Carefully remove the top cap and tube.
3. CLEARANCES
Minimum clearances, as specifi ed in Figure
2, MUST be maintained from adjacent struc-
tures to provide room for proper servicing
and air circulation.
Do NOT install unit in a confi ned or recessed
area that will allow discharge air from the unit
to re-circulate into the condenser air inlet,
through the coil.
Service Access Clearance:
Blower access panel side ...........................24"
Electrical compartment access panel side .. 12"
Clearance between overhang and top of
unit .............................................................72"
Clearance around condenser coil area to wall
or shrubs (excludes duct panel side) ..........12"
Minimum clearance to combustible materials:
Combustible Base (Wood or Class A, B, or C
roof Covering material) .............................. 0"
Supply and Return Air Ducts ...................... 0"
Duct Connection side ................................. 0"
DUCT REQUIREMENTS
The supply duct system, including the number
and type of registers, will have much more ef-
fect on the performance of an air conditioning
system then any other factor. The duct must be
suffi ciently large to conduct an adequate amount
of air to each register.
Figure 4. Return Air Box
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