Nordyne 460/575 Volt Single Package Convertible Air Conditioner, Air Conditioner User Manual And Installation Instructions
460/575 Volt Single Package Convertible Air Conditioner
User's Manual and Installation Instructions
TM
These instructions are primarily intended to assist qualified individuals
experienced in the proper installation of heating and/or air conditioning
appliances. Some local codes require licensed installation/service personnel for this type equipment. All installations must be in accordance
with these instructions and with all applicable national and local codes
and standards.
Read these instructions thoroughly before starting the installation. Follow
all precautions and warnings contained within these instructions and on
the unit.
OWNER INFORMATION
make sure it’s working right, clean or change
filters and make any needed adjustments.
OPERATING INSTRUCTIONS
To Turn On Air Conditioner
If you have a heating/cooling thermostat:
1. Set the system switch to “Cool”.
2. Set the thermostat at the temperature level
you desire.
3. Turn the power on. Your air conditioner
should start as soon as room temperature
rises above the setting on the thermostat.
If you have one thermostat for heating and
another for cooling, they must be inter-
locked to prevent simultaneous operation:
1. Turn the heating thermostat to its lowest
possible setting.
2. If the cooling thermostat has an “On/Off”
switch, turn it “On.”
3. Set the cooling thermostat to the desired
temperature.
4. Turn the power on. Your air conditioner
should start when room temperature exceeds the thermostat setting.
To Shut Off Air Conditioner
If you have a heating/cooling thermostat:
1. Turn the system switch to “Heat” or “Off”.
2. Turn the thermostat to the desired heating
temperature setting.
3. If you are turning your air conditioner off for
the winter or an extended period, shut off the
power to the air conditioner.
If you have one thermostat for heating and
another for cooling, they must be interlocked to prevent simultaneous operation:
1. Turn your cooling thermostat “Off” or to its
highest setting.
2. Turn the heating thermostat to the desired
temperature.
3. If you are turning your air conditioner off for
the winter or an extended period, shut off the
power to the air conditioner.
Otherwise, follow these simple rules:
1. Never run your system without filter. 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. So. . . don’t 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 filters 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 filters.
5. Keep your 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”.
3. For free air flow, make sure your return
register is not covered and that the filter is
clean.
Cooling
Thermostat
R
Double Throw
Double Pole Switch
Furance
Thermostat
R
BEFORE YOU CALL A SERVICEMAN
Let your serviceman check your system at the
start of each air conditioning season. He will
2
To Air Conditioner
To Furance
Figure 1. Thermostat Interlock System
4. Check the 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.
SPECIFICATIONS
personal injury or property damage.
Unless otherwise noted in these instructions, only factory authorized kits or
accessories may be used with this product. Noncompliance may void the unit’s
warranty.
Package Air Conditioners are designed for
outdoor rooftop or ground level slab installations.
The units are shipped ready for horizontal duct
connections and are easily converted for down
flow applications.
All models are shipped from the factory with the
following:
1. Zero clearance to combustibles
2. Multi-speed direct-drive blower.
3. Compressor Anti-short-cycle timer (single
phase models only).
4. Blower Speed Relay.
5. Horizontal or Down flow duct connections.
The unit dimensions are shown in Figure 2 .
Optional field-installed electric heater kits are
available in 5 kw through 20 kw heating
capacities. A separate installation instruction
document for the electric heaters and their
application accompanies this one. A single
stage cooling 24VAC thermostat should be used
with these units. If electric heat will be installed,
a single-stage cooling, single stage heating
thermostat will be required.
SAFETY CONSIDERATIONS
It is the responsibility of the installer to ensure
that the installation is made in accordance with
all applicable local and national codes.
Labels, Tags — When working with this
equipment, follow all precautions in the literature,
on tags, and on labels provided with the unit and/
or approved field installed kits. The type of
hazard and severity are described on each label
or tag.
!
WARNING:
Improper installation, service, adjustment, or maintenance may cause explosion, fire, electrical shock or other hazardous conditions which may result in
Pressures Within The System — This
equipment contains liquid and gaseous
refrigerant under high pressure. Installation or
servicing should only be performed by qualified
trained personnel thoroughly familiar with this
type equipment.
INSTALLATION REQUIREMENTS
Equipment Check — Before beginning the
installation, verify that the unit model is correct
for the job. The unit model number is printed on
the data label. All units have been securely
packaged at the point of shipment. After
unpacking the unit, carefully inspect it for
apparent and concealed damage. Claims for
damage should be filed with the carrier by the
consignee.
Requirements and Codes — The installer
must comply with all local codes and regulations
which govern this type equipment. Local codes
and regulations take precedence over any
recommendations contained in these
instructions. All electrical wiring must be made
in accordance with local codes and regulations
and with the National Electric Code (ANSI/NFPA
70) or in Canada the Canadian Electric Code
Part 1 CSA C.22.1. Air Ducts must be installed
in accordance with the standards of the National
Fire Protection Association “Standards for
Installation of Air Conditioning and Ventilation
Systems” (NFPA 90A), “Standard for Installation
of Residence Type Warm Air Heating and Air
Conditioning Systems” (NFPA 90B), these
instructions and all applicable local codes.
NFPA publications are available by writing:
National Fire Protection Association
Batterymarch Park
Quincy, Maine 02269
Unit Location — This air conditioner is designed
only for outdoor installations. Choosing the
location of the unit should be based on minimizing
the length of the supply and return ducts.
Consideration should also be given to availability
3
of electric power, service access, noise, and
shade. Sufficient clearance for unobstructed
airflow through the outdoor coil must be
maintained in order to achieve rated performance
See Figure 3 for minimum clearances to
obstructions.
Air Filter Requirements — Three phase
units “Only” are supplied from the factory with
an internal filter rack assembly. Air filters are
not supplied; a suitable air filter must be installed
in the unit or in the return air system for all units.
See Table 1 for internal filter size requirements.
When utilizing an Economizer or Fresh Air
Equipment, the factory installed filter rack
assembly must be removed prior to installation.
Air filter pressure drop must not exceed 0.08
inches WC. Air filter(s) must be installed in the
return air ductwork ahead of the evaporator
coil of this unit. All return air to this unit must
pass through the filter(s) before entering this
unit. (See Routine Maintenance for Installation/
Removal of air filters).
INTERNAL FILTER
UNIT SIZE SIZE
R4GA 024-042, R4BC 024 (2) 14” x 25” x 1”
P4SA 036, P4SA 048 or
P4SC 036, Q4SA 036 (2) 14” x 25” x 2”
R4GA 048-060, R4GC 030-042 (2) 16” x 25” x 1”
P4SA 060, P4SC 048-060, or
Q4SA 048-060, Q4SC-048-060 (2) 16” x 25” x 2”
R4GC 048-060 (2) 18” x 25” x 1”
R4GM 024-072 or
Q4SC 048-060 (2) 18” x 25” x 2”
Securing
Screw
Figure 3a. Internal Filter Rack Location
located on the front side of the unit. (See Figure
4.) Install a 2 inch condensate trap in the drain
line of the same size and prime with water. When
connecting rigid drain line, hold the female fitting
with a wrench to prevent twisting. Do not over
tighten! Refer to local codes and restrictions
for proper condensate disposal requirements.
UNIT INSTALLATION
Ground Level — When installing the unit at
ground level, provide a concrete mounting
pad separate from the building foundation.
The pad must be level to insure proper
condensate disposal and strong enough to
support the unit’s weight. Refer to Figure 2 .
Make sure the slab is a minimum of 2" above
the grade and in an area that drains well.
Table 1. Internal Filter Size Requirements.
Removal of Internal Filter Rack — First
remove the Return Air Panel from the unit.
Remove the height adjustment screw from the
inside of the rack, and the (1) screw securing
the assembly to the coil located on the left leg
of the rack. The assembly can easily be
collapsed and removed from the unit. See
Figure 3a for filter rack securing screw
locations.
For single phase downflow installations only,
an internal filter accessory kit can be ordered.
For horizontal installations, the air filter system
must be installed in the return air ductwork. All
return air to this unit must pass through the
filter(s) before entering the evaporator coil.
Condensate Drain — Condensate is removed
from the unit through the 3/4" female pipe fitting
4
!
WARNING:
To avoid the risk of property damage or
personal injury; it is the rigger’s
responsibility to insure that whatever
means are used to hoist the unit are
safe and adequate.
!
CAUTION:
All panels must be securely in place
when rigging and hoisting.
Rigging and Hoisting — The unit should be
lifted using slings and spreader bars. The
spreader bars are necessary to prevent
damaging the top of the unit’s cabinet. Make
sure that the lifting equipment is adequate for
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