Nordyne 16 SEER Installation Manual
AiR CONDiTiONER 16 SEER
Two Stage R-410A Split System
Premium Model Shown
Please read this information thoroughly and become familiar with the
capabilities and use of your appliance before attempting to operate or
maintain this unit. Keep this literature 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.
These instructions are primarily intended to assist qualified individuals
experienced in the proper installation of this appliance. Some local
codes require licensed installation/service personnel for this type of
equipment. Please read all instructions carefully before starting the
installation.
2
Safety information ........................................ 4
About the Air Conditioner ............................ 4
What are the Benefits of a Split
System? ...................................................... 4
What are the Benefits of Two - Stage
Variable Speed Cooling? ............................ 4
Operating instructions ................................. 4
Cooling Operation ....................................... 4
Heating Operation ...................................... 4
Oper. the Indoor Blower Continuously ........ 5
Shutting the AC Off ..................................... 5
Warranty information ................................... 5
System Maintenance .................................... 5
Regular Cleaning ........................................ 5
Before You Call a Technician ...................... 5
Troubleshooting ............................................ 5
Safety information ........................................ 6
Pressures Within the System ..................... 6
Labels, Tags, and Precautions .................... 6
Brazing Operations ..................................... 6
General information ..................................... 7
Outdoor Unit Selection ............................... 7
Liquid and Suction Lines ............................ 7
Field Connections for Electrica! Power
Supply ......................................................... 7
Site Preparation ............................................ 7
Unpacking the Equipment .......................... 7
inspect for Damage .................................... 7
Preferred Location of the Outdoor Unit ....... 7
Facility Prerequisites .................................. 7
Minimum Circuit Ampacity .......................... 7
Maximum Fuse / Circuit Breaker Size ........ 7
installing the indoor Unit ............................. 7
installing the Outdoor Unit .......................... 7
Slab Mount ................................................ 7
Cantilever Mount ........................................ 7
Roof Mount ................................................ 8
Connecting Refrigerant Tubing Between
the indoor and Outdoor Unit ....................... 8
General information .................................... 8
Filter Drier installation ................................ 8
Optional Equipment .................................... 8
Electrical Connections ................................. 8
Pre - Electrical Checklist ............................. 8
Wiring Diagram / Schematic ....................... 8
Line Voltage ................................................ 8
Outdoor Unit Connections .......................... 9
Control Circuit Wiring .................................. 9
Thermostat Connections ............................ 9
Low Pressure Switch .................................. 9
High Pressure Switch ................................. 9
Comfort Alert TM Diagnostic Module ..... 10
24VAC Power Wiring ...................... 10
Thermostat Demand Wiring ........... 10
Interpreting the Diagnostic LED's... 10
LED Description ............................. 10
Two - Speed Outdoor Fan Motor ........ 11
Optional Equipment ............................ 11
Grounding ........................................... 11
Startup & Adjustments ............................... 11
Pre - Start Checklist ................................. 11
Thermostat ............................................... 11
Outdoor Unit ............................................. 11
Functional Checkout .................................. 11
Cooling ..................................................... 11
Heating ..................................................... 11
indoor Blower ........................................... 11
Short Cycle Protection .............................. 12
Optional Equipment .................................. 12
Adjustment of Refrigerant Charge ............ 12
Charging R-410A Unit in AC Mode .......... 13
Cooling Charging Charts ........................... 13
Trou bleshooti ng Tables .............................. 16
3
SAFETY INFORMATION
IMPORTANT: Safety markings are used
frequently throughout this manual to designate
a degree or level of seriousness and should not
be ignored. WARNING indicates a potentially
hazardous situation that if not avoided, could
result in personal injury or death. CAUTION
indicates a potentially hazardous situation that
if not avoided, may result in minor or moderate
injury or property damage.
ABOUTTHE AIR CONDITIONER
Your 16 SEER air conditioner has been carefully
designed and engineered to give you outstanding
energy efficiency and years of trouble-free
operation. This appliance uses only proven
components, such as the UItra-tech Copeland®
scroll compressor, aleaders choice for efficiency,
durability, and longevity.
What are the benefits of a split system?
Split systems are designed to work efficiently
for cooling in any climate. Split systems have
two main components: the outdoor section (air
conditioner or heat pump) and the indoor section
(matched air handler or coil). These two sections
work together to provide top performance,
maximum efficiency, and comfort.
What are the benefits of two stage; variable
speed cooling?
= Two stage cooling products maintain a more
consistent comfort level throughout your
home. The AC always starts in first stage and
attempts to meet the cooling demand. When
the temperature rises, the air conditioner or
heat pump automatically adjusts itself and
enters the second stage to meet increased
cooling demands.
= Atwostage, variable-speed unit runs for longer
cycles and will remove up to six times more
moisture than a conventional unit. The result
is a more comfortable environment even at
a higher thermostat setting.
. Since the fan operates slower during the low
stage cooling demand, the fan motor produces
less fan noise. The variable speed motor
ramps up slowly, eliminating uncomfortable
temperature swings. Since the unit runs at the
stage needed based off demand, you never
pay for energy that is not needed.
OPERATING INSTRUCTIONS
Please refer to the thermostat manufacturer's
User Manual for detailed programming
instructions.
Forthis type of equipment to function as intended,
a two stage cooling / heating thermostat is
required.
Cooling Operation
1. Set the thermostat's system mode to COOL
or AUTO and change the fan mode to AUTO.
See Figure 1
2. Set the temperature selector to the desired
temperature level. The outdoor fan,
compressor, and blower motor will all cycle
on and off to maintain the indoor temperature
at the desired cooling level.
NOTE: If the temperature level is re-adjusted, or
the system mode is reset, the fan and compressor
in the outdoor unit may not start immediately. A
protective timer circuit holds the compressor
and the outdoor fan off for approximately three
minutes following a previous operation or the
interruption of the main electrical power.
Heating Operation
1. Set the thermostat's system mode to HEAT
or AUTO and change the fan mode to AUTO.
See Figure 1.
2. Set the temperature seEector to the desired
temperature level. The compressor, outdoor
fan, and blower motor will cycle on and off to
maintain the indoor temperature at the desired
heating level.
NOTE: If the temperature level is re-adjusted, or
the system mode is reset, the fan and compressor
in the outdoor unit may not start immediately. A
protective timer circuit holds the compressor
and the outdoor fan off for approximately three
minutes following a previous operation or the
interruption of the main electrical power.
4
Fan Temperature
Mode Selector
System
Mode
Figure 1. Digital Thermostat
OperatingtheindoorBlowerContinuously
The continuousindoor blower operation is
typically used to circulate the indoor air to
equalize a temperature unbalance due to a sun
load, cooking, or fireplace operation.
Set the thermostat fan mode to ON (Figure 1).The
indoor blower starts immediately, and will run
continually until the fan mode is reset to AUTO.
The continuous indoor blower operation can be
obtained with the thermostat system mode set
in any position, including OFE
Shutting the Air Conditioner Off
Change the thermostat's system mode to OFF
and the fan mode to AUTO (See Figure 1).
NOTE: The system will not operate, regardless
of the temperature selector setting.
WARRANTY iNFORMATiON
A warranty certificate with full details is
included with the air conditioner. Carefully
review these responsibilities with your dealer
or service company. The manufacturer will not
be responsible for any costs found necessary to
correct problems due to impropersetup, improper
installation, adjustments, improper operating
procedure on the part of the user, etc. Some
specific examples of service calls which are not
included in the limited warranty are:
1. Correcting wiring problems in the electrical
circuit supplying the air conditioner.
2. Resetting circuit breakers or other switches.
3. Adjusting or calibrating of thermostat.
SYSTEM MAINTENANCE
CAUTION'.
Shut off all electrical power to the unit
before performing any maintenance or
service on the system. Failure to comply
may result in personal injury or death.
Proper maintenance is most important to achieve
the best performance from the appliance and
should be performed by a qualified service
technician at least once a year. Follow the
maintenance schedule and the instructions below
for years of safe, trouble free operation.
Regular Cleaning
= 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.
= Remove any leaves and grass clippings from
the coil in the outdoor unit, being careful not
to damage the aluminum fins.
. Check for obstructions, such as twigs, sticks,
etc.
TROUBLESHOOTING
If the AC fails to operate, check the following:
. The thermostat is properly set. See Cooling
Operation for air conditioning or Heating
Operation for furnace or air handler (page 3).
. Theunitdisconnectfusesareingoodcondition
and the electrical power to the unit is turned
on.
5
SAFETY INFORMATION
IMPORTANT: Safety markings are used
frequently throughout this manual to designate
a degree or level of seriousness and should not
be ignored. WARNING indicates a potentially
hazardous situation that if not avoided, could
result in personal injury or death. CAUTION
indicates a potentially hazardous situation that
if not avoided, may result in minor or moderate
injury or property damage.
Improper installation, service,
adjustment, or maintenance may cause
explosion, fire, electrical shock or other
hazardous conditions which may result
in personal injury or property damage.
Unless otherwise noted in these
instructions, only factory authorized
kits or accessories may be used with
this product.
These units are 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 attempted by qualified, 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
homeowner attempt to install and/
or service this equipment. Failure to
comply with this warning could result
in equipment damage, personal injury,
or death.
The safety information listed below
must be followed during the installation,
service, and operation of this unit.
Unqualified individuals should not
attempt to interpret these instructions or
install this equipment. Failure to follow
safety recommendations could result
in possible damage to the equipment,
serious personal injury or death.
= The installer must comply with all Ioca!
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.
= 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.
= All electrical wiring must be completed in
accordance with local, state and national
codes and regulations and with the National
Electric Code (ANSI/NFPA 70) or in Canada
the Canadian Electric Code Part 1CSA C.22.1.
= Installation of equipment may require brazing
operations. Installer must comply with safety
codes and wear appropriate safety equipment
(safety glasses, work gloves, fire extinguisher,
etc.) when performing brazing operations.
= Install this unit only in a location and position
as specified on page 6. This unit is designed
only for outdoor installations and should be
located with consideration of minimizing
the length of the supply and return ducts.
Consideration should also be given to the
accessibility of fuel, electric power, service
access, noise, and shade.
= 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..
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