Nordyne 13 SEER User Information
Outdoor Air Conditioner
User’s Information and Installation Instructions
13 SEER High Efficiency Split System
These units have been designed and tested for
capacity and efficiency in accordance with A.R.I.
Standards. Split System Heat Pump units are
designed for use with a wide variety of fossil fuel
furnaces, electric furnaces, air handlers, and
evaporator coil combinations.
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 of equipment. Read all instructions
carefully before starting the installation.
USER’S INFORMATION
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 servicing contractor .
To Operate Your Furnace for
Heating —
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 by pressing the
WARMER or COOLER button. Please
refer to the separate detailed user's manual
for complete thermostat programming
instructions. The furnace and 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 —
OPERATING INSTRUCTIONS
To Operate Your Air Conditioner for
Cooling —
1. Set the thermostat system switch to COOL
or AUTO and the thermostat fan switch to
AUTO. (See Figure 1)
2. Set the thermostat temperature to the
desired temperature level by pressing the
WARMER or COOLER button. Please
refer to the separate detailed thermostat
user's manual for complete instructions
regarding thermostat programming. The
outdoor unit and indoor blower will both
cycle on and off to maintain the indoor
temperature at the desired cooling level.
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.
FAN SWITCH
TEMPERATURE SCALES
Figure 1. Typical Thermostat
SYSTEM SWITCH
TEMPERATURE
SELECTOR
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 fireplace operation.
To Maintain Your Air Conditioner —
1. GENERAL INFORMATION
Read the following instructions completely before performing the installation.
Condensing Unit Section — Each condensing unit is shipped with a refrigerant charge
adequate to operate the outdoor section with an
indoor matching coil or air handler, and 15 feet
of refrigeration line.
!
CAUTION:
Be certain the electrical power to the
outdoor unit and the furnace/air handler
is disconnected before doing the
following recommended maintenance.
1. Regularly:
a. Clean or replace the indoor air filter at the
start of each heating and cooling season,
and when an accumulation of dust and dirt
is visible on the air filter.
b. Remove any leaves and grass clippings
from the coil in the outdoor unit, being
careful not to damage the aluminum fins.
c. Check for any obstruction, such as twigs,
sticks, etc.
2. Before Each Cooling Season:
If the furnace/air handler blower motor and
the outdoor unit fan motor(s) have oil tubes
at the motor bearings, apply 10 drops of
SAE No. 20 motor oil to each oil tube.
!
CAUTION:
Do not over-oil, or oil motors not
factory-equipped with oil tubes. The
compressor is hermetically “sealed”
and does not require lubrication.
3. Before Calling a Service Technician,
Be Certain:
a. The unit thermostat is properly set — see
“To Operate Your Air Conditioner for
Cooling” and “To Operate Your Furnace
for Heating.”
b. The unit disconnect fuses are in good
condition, and the electrical power to the
unit is turned on.
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NOTE: DO NOT USE ANY PORTION OF THE
CHARGE FOR PURGING OR LEAK TESTING.
Matching coils and air handlers are shipped
with a small pressurized holding charge to
pressurize them to keep out contaminants. To
release the pressure, read the indoor section
installation instructions carefully.
Liquid and Suction Lines — Refrigerant grade
copper tubing should be used when installing
the system. Refrigerant suction line tubing
should be fully insulated.
Field Connections for Electrical Power
Supply — All wiring must comply with current
provisions of the “National Electrical Code”
(ANSI C1.) and with applicable local codes
having jurisdiction. The minimum size of
electrical conductors and circuit protection must
be in compliance with information listed on the
outdoor unit data label.
2. SAFETY CONSIDERATIONS
Pressures within the System — Split system
air conditioning equipment contains liquid and
gaseous refrigerant under pressure. Installation
and servicing of this equipment should be accomplished by qualified, trained personnel thoroughly familiar with this type of equipment. Under no circumstances should the Homeowner
attempt to install and/or service the equipment.
Labels, Tags, Precautions — When working
with this equipment, follow all precautions in the
literature, on tags, and on labels provided with
the equipment. Read and thoroughly understand the instructions provided with the equipment prior to performing the installation and
operational checkout of the equipment.
Brazing Operations — Installation of equipment may require brazing operations. Safety
codes must be complied with. Safety equipment (e.g.; safety glasses, work gloves, fire
extinguisher, etc.) must be used when performing brazing operations.
!
WARNING:
Ensure all electrical power to the unit is
off prior to installing or servicing the
equipment. Failure to do so may cause
personal injury or death.
3. SITE PREPARATION
Unpacking Equipment — Remove the card-
board carton and User's Manual from the equipment. Take care not to damage the tubing
connections when removing the carton.
Inspect for Damage — Inspect the equipment
for damage prior to installing the equipment at
the job site. Ensure coil fins are straight and, if
necessary, comb fins to remove flattened and
bent fins.
Preferred Location of the Outdoor Unit at the
Job Site — Conduct a survey of the job site to
determine the optimum location for mounting
the outdoor unit. Overhead obstructions, poorly
ventilated areas, and areas subject to accumulation of debris should be avoided. The outdoor
unit should be installed no closer than 18 inches
from the outside walls of the facility and in an
area free from overhead obstructions to ensure unrestricted airflow through the outdoor
unit.
Facility Prerequisites — Electrical power must
be supplied to the equipment. Electrical power
supplied must be adequate for proper operation
of the equipment. The system must be wired
and provided with circuit protection in accordance with local building codes and the National Electrical Code.
Minimum Circuit Ampacity — Electrical wiring to the equipment must be compatible and
in compliance with the minimum circuit
ampacity listed on the outdoor unit data label.
Maximum Fuse/Circuit Breaker Size — Circuit
protection for the outdoor unit must be compatible with the maximum fuse/circuit breaker size
listed on the outdoor unit data label.
4.
INSTALLING THE OUTDOOR UNIT
Cantilever Mount — The cantilever mount
should be designed with adequate safety factor
to support the weight of the equipment, and for
loads subjected to the mount during operation.
Installed equipment should be adequately secured to the cantilever mount and levelled prior
to operation of the equipment.
Roof Mount — The method of mounting should
be designed so as not to overload roof structures nor transmit noise to the interior of the
structure. Refrigerant and electrical line should
be routed through suitably waterproofed openings to prevent water leaking into the structure.
5. INSTALLING THE INDOOR UNIT
The indoor section should be installed before
proceeding with routing of refrigerant piping.
Consult the installation instructions of the indoor unit (i.e.: air handler, furnace, etc.) for
details regarding installation.
6. CONNECTING REFRIGERANT
TUBING BETWEEN THE
INDOOR AND OUTDOOR UNIT
General — Once outdoor and indoor unit place-
ment has been determined, route refrigerant
tubing between the equipment in accordance
with sound installation practices. Refrigerant
tubing should be routed in a manner that minimizes the length of tubing and the number of
bends in the tubing. Refrigerant tubing should
be supported in a manner that the tubing will not
vibrate or abrade during system operation. Tubing should be kept clean of foreign debris during
installation and installation of a liquid line filter
drier is recommended if cleanliness or adequacy
of system evacuation is unknown or compromised. Every effort should be made by the
installer to ensure that the field installed refrigerant containing components of the system
have been installed in accordance with these
instructions and sound installation practices so
as to insure reliable system operation and longevity. The maximum recommended interconnecting refrigerant line length is 75 feet, and the
vertical elevation difference between the indoor
and outdoor sections should not exceed 20
feet.
Slab Mount — The site selected for a slab
mount installation requires a stable foundation
and one not subject to erosion. The slab should
be level and anchored (if necessary) prior to
placing the equipment on the slab.
Optional Equipment — Optional equipment
(e.g.: filter/driers, liquid line solenoid valves,
etc.) should be installed in strict accordance
with the manufacturer’s installation instructions.
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7. MAKING ELECTRICAL
CONNECTIONS
!
WARNING:
Turn off all electrical power at the
main circuit box before wiring
electrical power to the outdoor unit.
Failure to comply may cause severe
personnel injury or death.
Optional Equipment — Optional equipment
requiring connection to the power or control
circuits must be wired in strict accordance with
current provisions of the “National Electrical Code”
(ANSI C1.), with applicable local codes having
jurisdiction, and the installation instructions provided with the equipment. Optional Equipment
(e.g.: liquid line solenoid valves, hard start kits,
low suction pressure cutout switch kit, high pressure cutout switch kit, refrigerant compressor
crankcase heater, etc.) should be installed in
strict accordance with the manufacturer’s installation instructions.
Wiring Diagram/Schematic — A wiring diagram/schematic is located on the inside cover
of the electrical box of the outdoor unit. The
installer should become familiar with the wiring
diagram/schematic before making any electrical connections to the outdoor unit.
Outdoor Unit Connections — The outdoor
unit requires both power and control circuit
electrical connections. Refer to the unit wiring
diagram/schematic for identification and location of outdoor unit field wiring interfaces.
Control Circuit Wiring — The outdoor unit is
designed to operate from a 24 VAC Class ll
control circuit. Control circuit wiring must comply with the current provisions of the “National
Electrical Code” (ANSI C1.) and with applicable
local codes having jurisdiction.
Thermostat Connections — Thermostat connections should be made in accordance with
the instructions supplied with the thermostat,
and with the instructions supplied with the indoor equipment.
Electrical Power Wiring — Electrical power
wiring shall comply with the current provisions of the “National Electrical Code” (ANSI
C1.) and with applicable local codes having
jurisdiction. Use of rain tight conduit is recommended. Electrical conductors shall have
minimum circuit ampacity in compliance with
the outdoor unit rating label. The facility shall
employ electrical circuit protection at a current rating no greater than that indicated on
the outdoor unit rating label.
Disconnect Switch — An electrically compatible disconnect switch must be within line of
sight of the outdoor unit. This switch shall be
capable of electrically de-energizing the outdoor unit.
8. STARTUP AND CHECKOUT
!
WARNING:
Ensure electrical power to the unit is off
prior to performing the following steps.
Failure to do so may cause personal
injury or death.
Air Filters — Ensure air filters are clean and in
place prior to operating the equipment.
Thermostat — Set the room thermostat function switch to OFF, fan switch to AUTO, and
move temperature setpoint to its highest setting.
Prior to applying electrical power to the outdoor
unit, ensure that the unit has been properly and
securely grounded, and that power supply connections have been made at both the facility
power interface and outdoor unit.
Outdoor Unit — Ensure the outdoor coil and
top of the unit are free from obstructions and
debris, and all equipment access/control panels are in place.
Using extreme caution, apply power to the unit
and inspect the wiring for evidence of open,
shorted, and/or improperly wired circuits.
Functional Checkout:
!
CAUTION:
If equipped with a compressor
crankcase heater, wait 24 hours prior to
performing a function checkout to allow
for heating of the compressor
crankcase. Failure to comply may result
in damage and could cause premature
failure of the system.
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