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DUCT SYSTEM. ALSO, DUCTS WHICH ARE
COLLAPSED OR RESTRICTED BY FOREIGN
OBJECTS WILL PREVENT ADEQUATE AIR
FLOW.
CONNECTING THE RETURN AND SUPPLY
AIR FLEXIBLE DUCTS
a.
Use 12" duct to connect unit to the home
duct system. (See Fig. 2 and 3)
b.
Use 14" duct to connect unit to furnace.
(See Fig. 2 and 3)
c.
The fl exible ducts can be connected to the
corresponding fi ttings with the clamps pro-
vided with the ducts. Note: All connections
should be leak tight or a loss in cooling
capacity will result.
d.
The fl exible ducts may be cut to the required
length, see instructions packed with duct.
Keep all ducts as short and straight as pos-
sible. Avoid sharp bends.
e.
Ducts may be spliced with sheet metal
sleeves and clamps.
f.
Once the inner duct is connected to the
proper fi tting, the insulation and plastic
sleeve should be pulled over the connection
and clamped.
g.
For homes with multiple supply ducts or for
special applications, a Y fi tting is available
to divide the supply air so it can be ducted
to different areas of the home for more ef-
fi cient cooling. Note: The Y fi tting should be
insulated for maximum performance.
CONDENSATE DRAIN
A 3/4" condensate drain connection is located
on the side of the unit below the electrical com-
partment. A fi eld supplied condensate drain
should be installed. Route the condensate to a
suitable drainage area. Any connecting tube or
hose must have the outlet below the fi tting on
the unit for proper drainage.
WARNING:
Turn off electrical power before servic-
ing controls. Severe electrical shock
may result unless power is turned off.
Unit must be installed in compliance
with the National Electrical Code (NEC)
and local codes.
ELECTRICAL CONNECTIONS
1.
ELECTRICAL SERVICE
HIGH VOLTAGE
a.
An approved branch circuit disconnect re-
ceptacle of adequate size and disconnect
cover per NEC has already been installed
at the intended location of the unit on one
of the four exterior walls of the home.
b.
Attach the approved Power Cord/Discon-
nect Plug (NORDYNE P/N-903899) to the
unit using a strain relief connector (Romex
type or equivalent) through the high voltage
knockout provided.
c.
Extend the power cord leads up into the
control panel and connect L1 (Black) and
L2 (White) directly to the contactor lugs
provided. (See Fig. 4)
d.
Ground the air conditioning unit by attach-
ing the power cord ground wire (Green-w/
eyelet) to the unit using the green grounding
screw provided in the control panel. (See
Fig. 4)
LOW VOLTAGE
a.
Low voltage wiring from the indoor furnace
and thermostat will be located under the
home near the branch circuit receptacle
and cover. Route the 24V control wires
through the low voltage sealing grommet.
(See Figure 4)
b.
Connect the low voltage control wires to
the leads in the low voltage compartment
as shown in Figure 4 and 5.
2.
OVERCURRENT PROTECTION
In general, the best fuse or breaker for any air
conditioner is the smallest size that will permit
the equipment to run under normal use and
service without nuisance trips. Such a device,
sized properly, gives maximum equipment
protection. The principal reason for specifying
a time delay type is to prevent nuisance trips
when the unit starts.
In the event that a fuse does blow or a breaker
trips, always determine the reason. Do not arbi-
trarily put in a larger fuse or breaker and do not,
in any case, exceed the maximum size listed on
the data label of the unit.
5
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