Nordyne R-410A, X24K, X36K, X48K, P5RF-X24K User Manual And Installation Instructions
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USER’S MANUAL AND INSTALLATION INSTRUCTIONS
15 SEER
2-Stage R-410A Single Package Air Conditioner
Single Package Air Conditioner
IMPORTANT
Read this owner information to become familiar with the capabilities and use
of your appliance. Keep this with literature on other appliances where you
have easy access to it in the future. If a problem occurs, check the instructions
and follow recommendations given. If these suggestions don’t eliminate your
problem, call your installing contractor or distributor in your area.
INTRODUCTION
Most any air conditioner will keep you cool. Our air conditioner was designed to do
it effi ciently. Effi ciency means less cost to you while keeping you comfortable.
WHY YOUR AIR CONDITIONER WORKS SO WELL, SO QUIETLY
1. Air is cooled by a large evaporator coil. Moisture is also removed from the air by
this same coil.
2. Air is then delivered through the main duct, via registers, into your home.
3. Return air is drawn through the return register.
4. This air enters the unit, passes through the evaporator coil, is cooled and dehumidifi ed. Then the cycle begins again.
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SECTION 1.
OWNER INFORMATION
OPERATING INSTRUCTIONS
To Operate Your Air Conditioner for Cooling—
Thermostat — The 15 SEER Air Conditioner
uses a special two speed compressor to achieve
a high level of effi ciency in a compact frame. A
two stage cooling 24VAC thermostat can be
used with these units. For the highest effi ciency
the use of a two-stage cooling thermostat is
recommended. Refer to Figure 11 or 12 for a
unit wiring diagram.
Cooling Mode:
1. On a call for cooling the thermostat closes,
applying 24VAC to the G and Y1 terminals
on the control. This closes the compressor
contactor, and the compressor operates on
1st stage.
2. If the thermostat is not satisfi ed in the
required time, based on the operation of
the two-stage cooling thermostat, Y2 will
The indoor blower will cycle on and off to
maintain the indoor temperature at the desired
heating level.
To Shut Off Your Air Conditioner —Set the
thermostat system switch to OFF and the
thermostat fan switch to AUTO. (See Figure 1)
The system will not operate, regardless of the
thermostat temperature setting.
To Operate the Indoor Blower Continuously—
Set the thermostat fan switch to ON (See Figure 1)
The indoor blower will start immediately, and
will run continually until the fan switch is reset
to AUTO.
The continuous indoor blower operation can be
obtained with the thermostat system switch set
in any position, including OFF. The continuous
indoor blower operation is typically used to
circulate the indoor air to equalize a temperature
unbalance due to a sun load, cooking, or fi replace
operation.
BEFORE YOU CALL A SERVICEMAN
Let your serviceman check your system at the
start of each air conditioning season. He will
make sure it’s working right, clean or change
fi lters and make any needed adjustments.
System
Mode
energize and the compressor will run at
second stage. Refer to the thermostat
installation instructions for the cooling
profi le.
3. When the thermostat is satisfi ed, the G
and Y terminals on the control board are
de-energized opening the compressor
contactor.
To Operate Your Unit for Heating — (If optional
heat accessory is installed.)
1. Set the thermostat system switch to HEAT or
AUTO and the thermostat fan switch to AUTO.
(See Figure 1)
2. Set the thermostat temperature to the desired
temperature level using the temperature selector.
Please refer to the separate user’s manual for
complete thermostat programming instructions.
Fan
Mode
Figure 1. Typical Thermostat
Temperature
Selector
In addition, follow these simple rules:
1. Never run your system without fi lter. If you
do, the cooling coils will get dirty and may
become clogged.
2. Set your thermostat at the comfort level you
wish -- and then leave it alone. Let it control
the operation of the air conditioning system.
If you get chilly, turn it up a degree at a time
until comfort is restored.
3. It takes longer for an air conditioner to cool
your dwelling than it does for your furnace to
heat it. Therefore, do not turn the unit on and
expect a dramatic drop in temperature, at
least not right away. If your home is hot and
humid, the temperature will drop slowly.
4. Check your fi lters every ten days in summer
to see if they are dirty. To keep them clean,
use a mild solution of detergent and water
on washable types. Replace non washable
fi lters.
5. Keep your outdoor condenser coil clean.
You can hose it down when it gets dirty.
If your air conditioner isn’t working:
1. Make sure the fuses are not blown or that
your circuit breakers are on.
2. See that your thermostat is set at the desired
temperature and that your system’s switch
is on “Cool.”
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3. For free air fl ow, make sure your return
register is not covered and that the fi lter is
clean.
4. Check the outdoor condenser coil and make
sure it is clean and not clogged with grass
or leaves.
If your air conditioner still isn’t working, call your
nearest distributor.
SECTION 2.
INSTALLER INFORMATION
GENERAL
Read the following instructions completely
before performing the installation.
These instructions are for the use of qualifi ed
personnel specially trained and experienced
in the installation of this type of equipment
and related system components. Some states
require installation and service personnel to
be licensed. Unqualifi ed individuals should not
attempt to interpret these instructions or install
this equipment.
The single packaged air conditioners are designed for outdoor installation only and can be
readily connected into the high static duct system
of a home. The only connections needed for
installation are the supply and return ducts, the
line voltage, and thermostat wiring. A complete
air conditioning system typically consists of:
• Single Package Air Conditioner
• Home Fittings Kit
• Unit Fittings Kit
• Thermostat
The single package air conditioner is completely
assembled, factory wired, and factory run tested.
The units are ready for easy and immediate
installation.
PRE-INSTALLATION CHECK
Before any installation is attempted, the cooling load of the area to be conditioned must be
calculated and a system of the proper capacity
selected. It is recommended that the area to
be conditioned be completely insulated and
vapor sealed.
The installer should comply with all local codes
and regulations which govern the installation
of this type of equipment. Local codes and
regulations take precedence over any recommendations contained in these instructions.
Consult local building codes and the National
Electrical Code (ANSI CI) for special installation
requirements.
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The electrical supply should be checked to determine if adequate power is available. If there
is any question concerning the power supply,
contact the local power company.
Inspecting Equipment: All units are securely
packed at the time of shipment and, upon arrival,
should be carefully inspected for damage. Claims
for damage (apparent or concealed) should be
fi led immediately with the carrier.
CAUTION:
This unit uses refrigerant R-410A. Do
NOT under any circumstances use
any other refrigerants besides R-410A
in this unit. Use of another refrigerant
will damage this unit.
WARNING:
Single Packaged Air Conditioners are
shipped fully charged with R-410A
refrigerant and ready for installation.
When a system is installed according
to these instructions, no refrigerant
charging is required. If repairs make it
necessary for evacuation and charging,
it should only be done by qualifi ed,
trained personnel thoroughly familiar
with this equipment. Some local codes
require licensed installation service
personnel to service this type of
equipment. Under no circumstances
should the owner attempt to install
and/or service this equipment. Failure
to comply with this warning could result
in property damage, personal injury or
death.
INSTALLATION
1. SELECT THE BEST LOCATION FOR
THE AIR COND ITIONING UNIT
IMPORTANT: DO NOT PLACE UNIT UNDER
THE HOME.
• Select a solid, level position, preferably on a
concrete slab, slightly above the grade level,
and parallel to the home.
• The hot condenser air must be discharged
up and away from the home, and if possible,
in a direction with the prevailing wind.
• Do not place the unit in a confi ned space.
6 ft.
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.
24"
3. CLEARANCES
Minimum clearances, as specifi ed in Figure
2, MUST be maintained from adjacent structures to provide room for proper servicing
and air circulation.
12"
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 location.
• 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 position 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.
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 effect 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.
Transition Duct Screws
Supply Air
14” Duct Dimples
Return Air
Figure 3. Return and Supply Air Fittings
Figure 4. Return Air Box
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